PREFIX obo: <http://purl.obolibrary.org/obo/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

obo:BTO_0004664 a rdfs:Class ;
  rdfs:label "human iliac artery endothelial cell" ;
  rdfs:comment "Human arterial endothelial cells, HAECs, are isolated from adult human iliac arteries of transplant donors by mechanically removing the endothelial layer and are cultured." ;
  rdfs:subClassOf obo:BTO_0004663 .

obo:RO_0002202 a rdf:Property ;
  rdfs:label "derives from/develops from" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0004555 a rdfs:Class ;
  rdfs:label "parotid gland duct epithelium" .

obo:BFO_0000050 a rdf:Property ;
  rdfs:label "part of" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0001971 a rdfs:Class ;
  rdfs:label "plant cell line" .

obo:BTO_0004605 a rdfs:Class ;
  rdfs:label "U-118MG cell" ;
  rdfs:comment "Human neuronal glioblastoma (grade III) cell line." .

obo:BTO_0001051 a rdfs:Class ;
  rdfs:label "culture condition:phenylacetic acid-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000011 a rdfs:Class ;
  rdfs:label "3T3-L1 cell" ;
  rdfs:comment "L1 is a continuous substrain of 3T3 Swiss albino developed through clonal isolation. Cells undergo a pre-adipose to adipose like conversion as they progress from a rapidly dividing to a confluent and contact inhibited state. A high serum content in the medium enhances fat accumulation." .

obo:BTO_0004719 a rdfs:Class ;
  rdfs:label "excretory canal cell" ;
  rdfs:comment "The H-shaped excretory cell is the largest cell in Caenorabditis elegans." ;
  rdfs:subClassOf obo:BTO_0000431 .

obo:BTO_0003363 a rdfs:Class ;
  rdfs:label "hyphal tip" .

obo:BTO_0002125 a rdfs:Class ;
  rdfs:label "water vascular system" ;
  rdfs:comment "The water vascular system is a hydraulic system used by Echinoderms for locomotion, food and waste transportation, and respiration. Composed of water filled tube feet and ampulla, Echinoderms move by contracting the muscles around the ampulla forcing water in the tube feet, which causes the foot to extend propelling the animal forward." .

obo:BTO_0003194 a rdfs:Class ;
  rdfs:label "SK-RC-6 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0001414 a rdfs:Class .

obo:BTO_0001594 a rdfs:Class ;
  rdfs:label "U-266 cell" ;
  rdfs:comment "Human multiple myeloma cell line; established from the peripheral blood of a 53-year-old man with IgE-secreting myeloma (refractory, terminal) in 1968." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0005887 a rdfs:Class ;
  rdfs:label "SK-6 cell" ;
  rdfs:comment "Swine kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0005596 a rdfs:Class ;
  rdfs:label "epitheloid cell" ;
  rdfs:comment "A nonepithelial cell, especially one derived from a macrophage, having characteristics resembling those of an epithelial cell, often found in granulomas associated with tuberculosis." .

obo:BTO_0006497 a rdfs:Class ;
  rdfs:label "NASS cell" ;
  rdfs:comment "MYCN single copy neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001161 a rdfs:Class ;
  rdfs:label "chorionic villus" ;
  rdfs:comment "One of the minute vascular projections of the fetal chorion that combines with maternal uterine tissue to form the placenta." .

obo:BTO_0003757 a rdfs:Class ;
  rdfs:label "Vester cell" ;
  rdfs:comment "Human malignant mesothelioma cell line with a fibroblast like phenotype." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0006313 a rdfs:Class ;
  rdfs:label "taproot" ;
  rdfs:comment "Main root of a primary root system, growing vertically downward. Most dicotyledonous plants, such as dandelions, produce taproots, and some, such as the edible roots of carrots and beets, are specialized for food storage." ;
  rdfs:subClassOf obo:BTO_0001188 .

obo:BTO_0000051 a rdfs:Class ;
  rdfs:label "tendon sheath" ;
  rdfs:comment "A synovial sheath covering a tendon (as in the hand or foot)." .

obo:BTO_0001475 a rdfs:Class ;
  rdfs:label "zoospore" ;
  rdfs:comment "An independently motile spore; especially: a motile usually naked and flagellated asexual spore especially of an alga or lower fungus." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0004212 a rdfs:Class ;
  rdfs:label "seta" ;
  rdfs:comment "A hair-like unicellular external process of the body wall or any derivative of the latter, a hair, a bristle." ;
  rdfs:subClassOf obo:BTO_0001501 .

obo:BTO_0005460 a rdfs:Class ;
  rdfs:label "HaEpi cell" ;
  rdfs:comment "An epidermal cell line from the 5th instar larval integument of Helicoverpa armigera." ;
  rdfs:subClassOf obo:BTO_0002632 , obo:BTO_0004830 .

obo:BTO_0004783 a rdfs:Class ;
  rdfs:label "SeAx cell" ;
  rdfs:comment "The SeAx cell line is derived from peripheral blood of a patient with Sezary syndrome, a common type of cutaneous T-cell lymphoma." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0005195 a rdfs:Class ;
  rdfs:label "K-562/R7 cell" ;
  rdfs:comment "Doxorubicin-selected variant of the human myelogenous leukemia cell line K562." .

obo:BTO_0005427 a rdfs:Class ;
  rdfs:label "NW-1539 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003457 a rdfs:Class ;
  rdfs:label "endometrioma cell" ;
  rdfs:comment "Circumscribed mass of ectopic endometrial tissue in endometriosis." .

obo:RO_0004030 a rdf:Property ;
  rdfs:label "disease arises from structure" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0001688 a rdfs:Class ;
  rdfs:label "cochlear ganglion" ;
  rdfs:comment "The sensory ganglion located within the spiral canal of the modiolus. It consists of bipolar cells that send fibers peripherally through the foramina nervosa to the spiral organ and centrally through the internal acoustic meatus to the cochlear nuclei of the brain stem." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0006006 a rdfs:Class ;
  rdfs:label "pseudopalisading cell" ;
  rdfs:comment "Glioblastoma (GBM) is a highly malignant, rapidly progressive astrocytoma that is distinguished pathologically from lower grade tumors by necrosis and microvascular hyperplasia. Necrotic foci are typically surrounded by pseudopalisading cells, a configuration that is relatively unique to malignant gliomas and has long been recognized as an ominous prognostic feature." ;
  rdfs:subClassOf obo:BTO_0002373 .

obo:BTO_0004805 a rdfs:Class ;
  rdfs:label "C666-1 cell" ;
  rdfs:comment "A cell line from undifferentiated nasopharyngeal carcinoma (NPC). This cell line consistently carries the Epstein-Barr virus (EBV) in long-term cultures. C666-1 is a subclone of its parental cell line, C666, derived from an NPC xenograft of southern Chinese origin." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0004483 a rdfs:Class ;
  rdfs:label "ovarian surface epithelium" ;
  rdfs:subClassOf obo:BTO_0003661 .

obo:BTO_0002854 a rdfs:Class ;
  rdfs:label "corn silk" ;
  rdfs:comment "The styles and stigmas that appear as a silky tuft or tassel at the tip of an ear of corn, used as a diuretic in herbal medicine." ;
  rdfs:subClassOf obo:BTO_0001303 , obo:BTO_0001313 .

obo:BTO_0006131 a rdfs:Class ;
  rdfs:label "culture condition:B220+ cell" ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0005274 a rdfs:Class ;
  rdfs:label "adventitious root culture" ;
  rdfs:comment "Leaf and stem explants cultured on MS (Murashige and Skoog) medium supplemented with various auxins." ;
  rdfs:subClassOf obo:BTO_0003987 .

obo:BTO_0003036 a rdfs:Class ;
  rdfs:label "hippocampal cell line" .

obo:BTO_0000613 a rdfs:Class ;
  rdfs:label "hypocotyl" ;
  rdfs:comment "The part of the axis of a plant embryo or seedling below the cotyledon." .

obo:BTO_0000502 a rdfs:Class ;
  rdfs:label "gastric fundus" ;
  rdfs:comment "That part of the stomach to the left and above the level of the entrance of the esophagus." .

obo:BTO_0001569 a rdfs:Class ;
  rdfs:label "MDA-MB-361 cell" ;
  rdfs:comment "Human mammary gland adenocarcinoma cell line; established from a 40-year-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0001912 , obo:BTO_0004086 .

obo:BTO_0003634 a rdfs:Class ;
  rdfs:label "esophageal gland" ;
  rdfs:comment "One of the racemose glands in the walls of the esophagus that in humans are small and serve principally to lubricate the food but in some birds secrete a milky fluid on which the young are fed." .

obo:BTO_0006109 a rdfs:Class ;
  rdfs:label "uterine endometrial epithelium" .

obo:BTO_0002623 a rdfs:Class ;
  rdfs:label "spinal muscle of neck" ;
  rdfs:comment "Origin: spinous processes of seventh cervical and sometimes two upper thoracic vertebrae; insertion: spinous processes of axis and sometimes of second to fourth cervical vertebrae; innervation: branches of cervical; action: extends vertebral column." ;
  rdfs:subClassOf obo:BTO_0002621 .

obo:BTO_0001883 a rdfs:Class ;
  rdfs:label "acute myeloid leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000740 .

obo:BTO_0004005 a rdfs:Class ;
  rdfs:label "BALB/3T3-T cell" ;
  rdfs:comment "3T3 T proadipocyte cell line; derived from the clone A31 BALB/3T3 cell line." ;
  rdfs:subClassOf obo:BTO_0000746 .

obo:BTO_0000174 a rdfs:Class ;
  rdfs:label "embryonic structure" ;
  rdfs:comment "An anatomical structure that exists only before the organism is fully formed. In mammals, for example, a structure that exists only prior to the birth of the organism. This structure may be normal or abnormal." ;
  rdfs:subClassOf obo:BTO_0000284 , obo:BTO_0001489 .

obo:BTO_0005169 a rdfs:Class ;
  rdfs:label "HCMEC cell" ;
  rdfs:comment "HCMEC are isolated from heart ventricles from a single donor." ;
  rdfs:subClassOf obo:BTO_0003124 .

obo:BTO_0004075 a rdfs:Class ;
  rdfs:label "D1-HEK-293 cell" ;
  rdfs:comment "HEK 293 cells that stably express D1 dopamine receptors." .

obo:BTO_0005760 a rdfs:Class ;
  rdfs:label "alveolar epithelial cell" .

obo:BTO_0002720 a rdfs:Class ;
  rdfs:label "BC-1 cell" ;
  rdfs:comment "PEL cell line carrying the Epstein-Barr virus (EBV) infection." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0004205 a rdfs:Class ;
  rdfs:label "RPMI-2650 cell" ;
  rdfs:comment "Human nasal septum squamous cell carcinoma cell line; established from the pleural effusion of a 52-year-old man with anaplastic squamous cell carcinoma of the nasal septum in 1962." ;
  rdfs:subClassOf obo:BTO_0004204 .

obo:BTO_0001638 a rdfs:Class ;
  rdfs:label "blastema" ;
  rdfs:comment "A group of cells that give rise to a new individual, in asexual reproduction, or to an organ or part, in either normal development or in regeneration." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0005754 a rdfs:Class ;
  rdfs:label "choroid plexus cancer cell" .

obo:BTO_0002742 a rdfs:Class ;
  rdfs:label "gynecophoral canal" ;
  rdfs:comment "The ventral slot in which the male schistosome carries the female." .

obo:BTO_0001458 a rdfs:Class ;
  rdfs:label "apocrine sweat gland" ;
  rdfs:comment "A type of large, branched, specialized sudoriferous gland (glandula sudorifera) that empties into the upper portion of a hair follicle instead of directly onto the skin surface; found only on certain areas of the body, such as around the anus and in the axilla; after puberty they produce a viscous secretion that is acted on by bacteria to produce a characteristic acrid odor." ;
  rdfs:subClassOf obo:BTO_0001162 , obo:BTO_0001331 .

obo:BTO_0000602 a rdfs:Class ;
  rdfs:label "histiocyte" ;
  rdfs:comment "A nonmotile macrophage of extravascular tissues and especially connective tissue." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0002173 a rdfs:Class ;
  rdfs:label "tubercle" ;
  rdfs:comment "The adult male dorsal surface of Schistosoma is covered in small bosses called tubercles that provide purchase against the blood vessel wall when the worm is crawling up the mesenteric veins carrying the female in its ventral groove. Each tubercle has a thin, 2-3 micron, covering of the syncytial tegument. Enclosed entirely within the tegument cytoplasm of the tubercle are a series of spines, made of actin, which assist in gripping the blood vessel. The tegument is normally closely apposed to the underlying circular muscle layer, and separated from it only by an extracellular matrix of collagen fibres. The tubercle is the exception, where the tegument is lifted up by numerous extensions of parenchymal cells. The parenchymal cell bodies lie below the muscle layers and send out narrow extensions of cytoplasm which insinuate between the muscles to form the packing for the tubercle." .

obo:BTO_0004595 a rdfs:Class ;
  rdfs:label "D-407 cell" ;
  rdfs:comment "Human retinal pigment epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002334 .

obo:BTO_0003174 a rdfs:Class ;
  rdfs:label "outer plexiform layer" ;
  rdfs:comment "The outer plexiform layer is a layer of neuronal synapses in the retina of the eye. It consists of a dense network of synapses between dendrites of horizontal cells from the inner nuclear layer, and photoreceptor cell inner segments from the outer nuclear layer. It is much thinner than the inner plexiform layer, where horizontal cells synapse with retinal ganglion cells." .

obo:BTO_0003968 a rdfs:Class ;
  rdfs:label "OUS-11 cell" ;
  rdfs:comment "Normal human lung cell line from lung cancer patient." ;
  rdfs:subClassOf obo:BTO_0000353 .

obo:BTO_0002093 a rdfs:Class ;
  rdfs:label "ganglioneuroma cell" ;
  rdfs:comment "A benign neoplasm composed of nerve fibers and mature ganglion cells; regarded by many as a fully differentiated neuroblastoma." ;
  rdfs:subClassOf obo:BTO_0000931 , obo:BTO_0003045 .

obo:BTO_0001099 a rdfs:Class ;
  rdfs:label "blastocyst" ;
  rdfs:comment "The modified blastula of a placental mammal." ;
  rdfs:subClassOf obo:BTO_0000128 .

obo:BTO_0002109 a rdfs:Class ;
  rdfs:label "tela submucosa esophagi" ;
  rdfs:comment "The layer of tissue underlying the tunica mucosa of the esophagus." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0004739 a rdfs:Class ;
  rdfs:label "CGTH-W3 cell" ;
  rdfs:comment "Papillary thyroid cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003210 .

obo:BTO_0000621 a rdfs:Class ;
  rdfs:label "iliopsoas muscle" ;
  rdfs:comment "Two muscles that lie together low down in the rear of the abdomen; A compound muscle, consisting of the iliacus musculus and psoas major musculus." ;
  rdfs:subClassOf obo:BTO_0001261 .

obo:BTO_0000783 a rdfs:Class ;
  rdfs:label "pancreatic beta cell" ;
  rdfs:comment "One of the cells that compose the bulk of the islets of Langerhans and secrete insulin." ;
  rdfs:subClassOf obo:BTO_0005813 .

obo:BTO_0003443 a rdfs:Class ;
  rdfs:label "UACC-893 cell" ;
  rdfs:comment "Human mammary gland primary ductal carcinoma cell line, established from breast tissue from a ductal carcinoma (stage II)." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0001778 a rdfs:Class ;
  rdfs:label "microsporangium" ;
  rdfs:comment "The pollen sac of a seed plant in which pollen is produced." ;
  rdfs:subClassOf obo:BTO_0001287 .

obo:BTO_0002277 a rdfs:Class ;
  rdfs:label "melanotroph" ;
  rdfs:comment "A pituitary cell type that elaborates melanocyte-stimulating hormone and beta-endorphins. Melanotrophs are abundant in animals that have a pars intermedia adenohypophyseos; humans have very few." .

obo:BTO_0006566 a rdfs:Class ;
  rdfs:label "T1 cell" ;
  rdfs:comment "This line is a cloned hybrid between the 721.174 (variant of the LCL 721 B lymphoblastic cell line) and CEMR.3 (8-azaguanine and ouabain resistant clone of the CEM T lymphoblastic cell line)." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0002992 a rdfs:Class ;
  rdfs:label "ARH-77 cell" ;
  rdfs:comment "Human plasma cell leukemia cell line, established from the peripheral blood of a 33-year-old woman with IgG plasma cell leukemia; cell line is widely used as model for multiple myeloma/plasma cell leukemia, but cells are clearly EBV+ indicating that ARH-77 might be rather a normal B-lymphoblastoid cell line than a tumor cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0000575 a rdfs:Class ;
  rdfs:label "hepatocyte" ;
  rdfs:comment "The major cell type of the liver. They are arranged in folded sheets facing blood-filled spaces called sinusoids. Hepatocytes are responsible for the synthesis, degradation, and storage of a wide range of substances. They are the site of synthesis of all the plasma proteins, except for antibody, and are the site of storage of glycogen." .

obo:BTO_0004054 a rdfs:Class ;
  rdfs:label "umbilical cord blood cell" ;
  rdfs:comment "The blood from the umbilical cord of a newborn baby contains high concentrations of stem cells (cells from which all blood cells develop)." .

obo:BTO_0003866 a rdfs:Class ;
  rdfs:label "APUD cell" ;
  rdfs:comment "A group of apparently unrelated cells that secrete most of the body's hormones, with the exception of steroids." ;
  rdfs:subClassOf obo:BTO_0001895 .

obo:BTO_0005269 a rdfs:Class ;
  rdfs:label "antennal lobe" ;
  rdfs:comment "The antennal lobe is the deutocerebral neuropil of insect which receives the input from the olfactory sensory neurons on the antenna. Functionally, it shares some similarities with the olfactory bulb in vertebrates." ;
  rdfs:subClassOf obo:BTO_0005268 .

obo:BTO_0001894 a rdfs:Class ;
  rdfs:label "IIC9 cell" ;
  rdfs:comment "Chinese hamster embryonic fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0005821 a rdfs:Class ;
  rdfs:label "CMT-167 cell" ;
  rdfs:comment "Mouse lung carcinoma cell line; established from mouse strain C57BL/lcrf ." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0004652 a rdfs:Class ;
  rdfs:label "anal fin" ;
  rdfs:comment "The unpaired fin located on the ventral side of the body of a fish, posterior to the anus. It plays an important role in the swimming movements of sharks and bony fish." ;
  rdfs:subClassOf obo:BTO_0004649 .

obo:BTO_0004086 a rdfs:Class ;
  rdfs:label "mammary gland tumor cell line" ;
  rdfs:subClassOf obo:BTO_0000356 , obo:BTO_0003568 .

obo:BTO_0002634 a rdfs:Class ;
  rdfs:label "L3-5-3 cell" ;
  rdfs:comment "Anopheles gambiae cell line established from newly hatched larvae via a homogenization technique." ;
  rdfs:subClassOf obo:BTO_0002632 .

obo:BTO_0002158 a rdfs:Class ;
  rdfs:label "huelle cell" ;
  rdfs:comment "A cell having a thickened cell wall and a small lumen. Hulle cells are associated with species of Aspergillus. They are associated with the cleistothecia of all ascogenous species of the Aspergillus nidulans group, abundantly occurring around it." .

obo:BTO_0005574 a rdfs:Class ;
  rdfs:label "ileum smooth muscle" ;
  rdfs:comment "The smooth muscle of the ileums walls is thinner than the walls of other parts of the intestines, and its peristaltic contractions are slower." .

obo:BTO_0002046 a rdfs:Class ;
  rdfs:label "spermatozoid" ;
  rdfs:comment "A male reproductive cell produced in an antheridium, as in algae, fungi, and nonflowering plants. Each spermatozoid has cilia that propel it toward the archegonium." .

obo:BTO_0000190 a rdfs:Class ;
  rdfs:label "Ehrlich tumor carcinoma cell" ;
  rdfs:comment "A Ehrlich tumor carcinoma is a transplantable, poorly differentiated malignant tumour which appeared originally as a spontaneous breast carcinoma in a mouse. It grows in both solid and ascitic forms." ;
  rdfs:subClassOf obo:BTO_0000150 .

obo:BTO_0003717 a rdfs:Class ;
  rdfs:label "vesicular gland" ;
  rdfs:comment "The vesicular gland is part of the male reproductive system. The vesicular gland contributes fluids, energy substrates, and buffers to semen. It can be found near the Coagulating gland, which also belongs to the reproductive system." ;
  rdfs:subClassOf obo:BTO_0000080 .

obo:BTO_0000668 a rdfs:Class ;
  rdfs:label "kernel" ;
  rdfs:comment "The inner softer part of a seed, fruit stone, or nut." .

obo:BTO_0002525 a rdfs:Class ;
  rdfs:label "cementum" ;
  rdfs:comment "The bonelike rigid connective tissue covering the root of a tooth from the cementoenamel junction to the apex and lining the apex of the root canal, also assisting in tooth support by serving as attachment structures for the periodontal ligament." .

obo:BTO_0000134 a rdfs:Class ;
  rdfs:label "bloodstream form" ;
  rdfs:comment "When living in the mammalian bloodstream T. brucei has neither a functional Krebs cycle nor oxidative phosphorylation nor does it store any carbohydrates. In the bloodstream form. Its metabolism is restricted to the glycolytic pathway alone." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0002184 a rdfs:Class ;
  rdfs:label "culture condition:2,4-dichlorophenoxyacetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001335 a rdfs:Class ;
  rdfs:label "syncytiotrophoblast" ;
  rdfs:comment "Syncytial layer that forms the outermost fetal layer in the placenta and is thus the interface with maternal tissue. Has invasive capacity - though in a regulated manner." .

obo:BTO_0000192 a rdfs:Class ;
  rdfs:label "nasopharyngeal carcinoma cell" ;
  rdfs:comment "A cell of a disease in which cancer (malignant) cells are found in the tissues of the nasopharynx." ;
  rdfs:subClassOf obo:BTO_0000176 .

obo:BTO_0002054 a rdfs:Class ;
  rdfs:label "Dunn cell" ;
  rdfs:comment "Murine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002642 a rdfs:Class ;
  rdfs:label "A2780/DX3 cell" ;
  rdfs:comment "Doxorubicin-resistant ovarian-cancer cell line." .

obo:BTO_0004703 a rdfs:Class ;
  rdfs:label "striate cortex" ;
  rdfs:comment "The term visual cortex refers to the primary visual cortex and extrastriate visual cortical areas such as V2, V3, V4, and V5. The primary visual cortex is anatomically equivalent to Brodmann area 17, or BA17. There is a visual cortex for each hemisphere of the brain. The left hemisphere visual cortex receives signals from the right visual field and the right visual cortex from the left visual field." .

obo:BTO_0003342 a rdfs:Class ;
  rdfs:label "CL1-2 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." .

obo:BTO_0004903 a rdfs:Class ;
  rdfs:label "plant crown" ;
  rdfs:comment "1. The upper part of a tree, which includes the branches and leaves. 2. The part of a plant, usually at ground level, where the stem and roots merge. 3. The persistent, mostly underground base of a perennial herb." .

obo:BTO_0000715 a rdfs:Class ;
  rdfs:label "leaf base" ;
  rdfs:comment "The youngest tissue at the base of the leaf." .

obo:BTO_0001627 a rdfs:Class ;
  rdfs:label "glottis" ;
  rdfs:comment "The middle part of the larynx; the area where the vocal cords are located." .

obo:BTO_0002149 a rdfs:Class ;
  rdfs:label "gill raker" ;
  rdfs:comment "One of a series of variously shaped bony or cartilaginous projections on the inner side of the branchial arch. The rakers have epithelial denticles and both their gross and fine structure serves to retain food particles in the mouth. The gill raker count normally includes all rakers, even the rudiments, and is made on the front half of the first arch. Upper and lower gill raker counts may be presented as the upper and the lower (including the central raker), e.g. 9 + 17; or as upper rakers, central raker, and lower rakers, e.g. 9 + 1 + 16. The most anterior and posterior rakers are often small and delicate, easily torn or lost if the arch is removed. Plankton feeders have numerous, crowded, elongate and fine rakers while predators have few, separated, short and stubby rakers." .

obo:BTO_0004816 a rdfs:Class ;
  rdfs:label "ERpP cell" ;
  rdfs:comment "ER-1 cells converted into highly tumorigenic and metastatic cells, ERpP, by subcutaneous co-inoculation with plastic plates." .

obo:BTO_0004398 a rdfs:Class ;
  rdfs:label "meningioma cell line" .

obo:BTO_0005506 a rdfs:Class ;
  rdfs:label "culture condition:H2-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004504 a rdfs:Class ;
  rdfs:label "root vascular cell" ;
  rdfs:subClassOf obo:BTO_0004501 .

obo:BTO_0002345 a rdfs:Class ;
  rdfs:label "hindlimb" ;
  rdfs:comment "Either of two extremities of four-footed non-primate land animals. It usually consists of a femur, tibia and fibula, tarsals, metatarsals, and toes." ;
  rdfs:subClassOf obo:BTO_0001492 .

obo:BTO_0006348 a rdfs:Class ;
  rdfs:label "type A spermatogonium" ;
  rdfs:comment "Germ stem cells of the seminiferous epithelium in the testis. A spermatogonium that does not differentiate into a spermatocyte, a precursor of sperm cells. Instead, they continue dividing into other spermatogonia or remain dormant to maintain a reserve of spermatogonia. Type B spermatogonia, on the other hand, differentiate into spermatocytes, which in turn undergo meiosis to eventually form mature sperm cells." ;
  rdfs:subClassOf obo:BTO_0000958 , obo:BTO_0002666 .

obo:BTO_0000231 a rdfs:Class ;
  rdfs:label "cerebral hemisphere" ;
  rdfs:comment "Either of the two hollow convoluted lateral halves of the cerebrum." .

obo:BTO_0003928 a rdfs:Class ;
  rdfs:label "Mono-Mac-1 cell" ;
  rdfs:comment "Human acute monocytic leukemia cell line; established from the peripheral blood of a 64-year-old man with relapsed acute monocytic leukemia (AML FAB M5) in 1985 following myeloid metaplasia. Simultaneous sister cell line of MONO-MAC-6." ;
  rdfs:subClassOf obo:BTO_0002332 .

obo:BTO_0000618 a rdfs:Class ;
  rdfs:label "ileal lavage fluid" ;
  rdfs:comment "Ileal lavage is the process of washing out the ileum for therapeutic purposes." .

obo:BFO_0000054 a rdf:Property ;
  rdfs:label "realized in" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0003945 a rdfs:Class ;
  rdfs:label "MN-9D cell" ;
  rdfs:comment "The MN9D murine dopaminergic cell line was generated by fusion of rostral mesencephalic neurons from embryonic C57BL/6J (embryonic day 14) mice with N18TG2 neuroblastoma cells." .

obo:BTO_0005907 a rdfs:Class ;
  rdfs:label "H-MESO-1 cell" ;
  rdfs:comment "Human malignant mesothelioma cell line." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0003898 a rdfs:Class ;
  rdfs:label "GT1 cell" ;
  rdfs:comment "GT1 cells belong to an immortalized line of mouse hypothalamic GnRH secreting neurons that exhibit a pulsatile secretion of GnRH." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0005623 a rdfs:Class ;
  rdfs:label "neuroepithelial cell line" .

obo:BTO_0005332 a rdfs:Class ;
  rdfs:label "RWLeu-4 cell" ;
  rdfs:comment "RWLeu4 is a chronic myelogenous leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0000350 a rdfs:Class ;
  rdfs:label "culture condition:dimethylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006467 a rdfs:Class ;
  rdfs:label "LNCaP-Abl cell" ;
  rdfs:comment "Androgen-independent cell line directly derived from LNCaP by maintaining in an androgen-depleted medium." .

obo:BTO_0005720 a rdfs:Class ;
  rdfs:label "MOLM-14 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line. Sister cell line of MOLM-13 cell." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0000538 a rdfs:Class ;
  rdfs:label "alveolar cell type II" ;
  rdfs:comment "Pleomorphic cells of the pulmonary alveolar epithelium that secrete surfactant and are distinguished by abundant cytoplasm containing numerous lipid-rich multilamellar bodies." ;
  rdfs:subClassOf obo:BTO_0000395 .

obo:BTO_0002424 a rdfs:Class ;
  rdfs:label "mesothelioma cell line" .

obo:BTO_0001330 a rdfs:Class ;
  rdfs:label "hepatoma ascites cell" ;
  rdfs:subClassOf obo:BTO_0000608 .

obo:BTO_0002747 a rdfs:Class ;
  rdfs:label "PC-1 cell" ;
  rdfs:comment "Hamster pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0002309 a rdfs:Class ;
  rdfs:label "myoepithelial cell" ;
  rdfs:comment "Modified smooth muscle cells, contractile in nature, believed to be of ectodermal origin, located around the secretory units of certain glands (salivary, mammary, sweat, and lacrimal glands) between the gland cells and basement membrane, having long dendritic interweaving cytoplasmic processes, and containing myofilaments. It is assumed that contraction of these cells functions to help express secretion from the gland." ;
  rdfs:subClassOf obo:BTO_0000414 .

obo:BTO_0002862 a rdfs:Class ;
  rdfs:label "HBEpC cell" ;
  rdfs:comment "Adult human bronchial epithelial primary cell line." ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0001820 a rdfs:Class ;
  rdfs:label "subcommissural organ" ;
  rdfs:comment "An ependymal derivative located at the junction of the third ventricle and the cerebral aqueduct, secreting somatostatin." .

obo:BTO_0006299 a rdfs:Class ;
  rdfs:label "gastric cecum" ;
  rdfs:comment "One of the elongated pouches projecting from the upper end of the insect stomach." ;
  rdfs:subClassOf obo:BTO_0000166 .

obo:BTO_0004439 a rdfs:Class ;
  rdfs:label "hypopharyngeal carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000790 .

obo:BTO_0002378 a rdfs:Class ;
  rdfs:label "pilocytic astrocytoma cell" ;
  rdfs:comment "An astrocytoma resembling the fibrillary type but with its fibrils arranged in parallel rows; its grade of malignancy is low. The most common kind is the cerebellar juvenile pilocytic astrocytoma. In adults the pilocytic type is usually found in the cerebrum." ;
  rdfs:subClassOf obo:BTO_0000100 .

obo:BTO_0006125 a rdfs:Class ;
  rdfs:label "AT1ABR cell" ;
  rdfs:comment "Human lymphoblastoid cell line; established from A-T (Ataxia telangiectasia) patients by Epstein-Barr virus immortalization." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0000437 a rdfs:Class ;
  rdfs:label "culture condition:glycerol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005715 a rdfs:Class ;
  rdfs:label "Mel-RM cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000549 a rdfs:Class ;
  rdfs:label "culture condition:H2/CO2-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004109 a rdfs:Class ;
  rdfs:label "fundic mucosa" ;
  rdfs:comment "The gastric mucosa is the mucous membrane layer of the stomach, which contains the glands and the gastric pits." .

obo:BTO_0001521 a rdfs:Class ;
  rdfs:label "pancreatic adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0000794 .

obo:BTO_0002247 a rdfs:Class ;
  rdfs:label "globus pallidus lateralis" ;
  rdfs:comment "Globus pallidus lateral segment: the larger, lateral part of the globus pallidus, separated from the putamen by the lateral medullary lamina and from the smaller, medial part of the globus pallidus by the medial medullary lamina." .

obo:BTO_0000676 a rdfs:Class ;
  rdfs:label "fibroadenoma cell" ;
  rdfs:comment "A cell of adenoma containing fibrous tissue." ;
  rdfs:subClassOf obo:BTO_0000178 .

obo:BTO_0002900 a rdfs:Class ;
  rdfs:label "monocyte-derived dendritic cell" ;
  rdfs:subClassOf obo:BTO_0002042 .

obo:BTO_0003537 a rdfs:Class ;
  rdfs:label "MIN6-m9 cell" ;
  rdfs:comment "Glucose-responsive subline of the mouse insulinoma-derived cell line MIN6." .

obo:BTO_0004346 a rdfs:Class ;
  rdfs:label "medial entorhinal cortex" ;
  rdfs:comment "The entorhinal cortex (EC) is an important memory center in the brain. In rodents, the EC is located at the caudal end of the temporal lobe. In primates it is located at the rostral end of the temporal lobe and stretches dorsolaterally. It is usually divided into medial and lateral regions with three bands with distinct properties and connectivity running perpendicular across the whole area." .

obo:BTO_0002753 a rdfs:Class ;
  rdfs:label "PC6-1 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0006208 a rdfs:Class ;
  rdfs:label "extravillous trophoblast cell" ;
  rdfs:comment "The outermost layer of trophoblast, produced by cytotrophoblast where there is direct contact with maternal decidua rather than blood. The EVT cells travel into the decidua, reacting with NK cells and invading maternal blood vessels feeding the placenta, softening the walls and replacing the lining with fetal tissue, a process called conversion." .

obo:BTO_0003483 a rdfs:Class ;
  rdfs:label "sebaceous gland cell line" .

obo:BTO_0006118 a rdfs:Class ;
  rdfs:label "MYCN-2 cell" ;
  rdfs:comment "Human neuroblastoma cell line." .

obo:BTO_0001262 a rdfs:Class ;
  rdfs:label "soft body part" .

obo:BTO_0004443 a rdfs:Class ;
  rdfs:label "XF354 cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004438 .

obo:BTO_0006312 a rdfs:Class ;
  rdfs:label "plantaris muscle" ;
  rdfs:comment "A small muscle of the calf of the leg that arises from the lower end of the femur and the posterior ligament of the knee joint, is inserted with the Achilles tendon by a very long slender tendon into the calcaneus, and weakly felxes the leg at the knee and the foot at the ankle." ;
  rdfs:subClassOf obo:BTO_0000722 .

obo:BTO_0001341 a rdfs:Class ;
  rdfs:label "S-49 cell" ;
  rdfs:comment "Mouse lymphoblastic T-lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0000698 a rdfs:Class ;
  rdfs:label "culture condition:L-ribose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000271 a rdfs:Class ;
  rdfs:label "colonic mucosa" ;
  rdfs:subClassOf obo:BTO_0000642 .

obo:BTO_0004425 a rdfs:Class ;
  rdfs:label "stratum granulosum cerebelli" ;
  rdfs:comment "The deepest of the three layers of the cortex; it contains large numbers of granule cells, the dendrites of which synapse with incoming mossy fibres in cerebellar glomeruli." .

obo:BTO_0005832 a rdfs:Class ;
  rdfs:label "globoid cell" ;
  rdfs:comment "A large cell of mesodermal origin that is found clustered in the intracranial tissues in globoid cell leukodystrophy." ;
  rdfs:subClassOf obo:BTO_0005831 .

obo:RO_0004025 a rdf:Property ;
  rdfs:label "disease causes dysfunction of" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0000146 a rdfs:Class ;
  rdfs:label "brain stem" ;
  rdfs:comment "The part of the brain composed of the mesencephalon, pons, and medulla oblongata and connecting the spinal cord with the forebrain and cerebrum." .

obo:BTO_0005968 a rdfs:Class ;
  rdfs:label "KOSC-2 cell" ;
  rdfs:comment "Human oral cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002027 .

obo:BTO_0005487 a rdfs:Class ;
  rdfs:label "PK-59 cell" ;
  rdfs:comment "Parental and gemcitabine resistant pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0004306 a rdfs:Class ;
  rdfs:label "NCM-460 cell" ;
  rdfs:comment "Nonmalignant human colonic epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003250 .

obo:BTO_0004940 a rdfs:Class ;
  rdfs:label "KOCL-58 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0003693 a rdfs:Class ;
  rdfs:label "natural killer large granular lymphocytic leukemia cell" ;
  rdfs:subClassOf obo:BTO_0001546 .

obo:BTO_0001129 a rdfs:Class ;
  rdfs:label "prostate gland" ;
  rdfs:comment "A firm partly muscular partly glandular body that is situated about the base of the mammalian male urethra and secretes an alkaline viscid fluid which is a major constituent of the ejaculatory fluid." ;
  rdfs:subClassOf obo:BTO_0000080 , obo:BTO_0003096 .

obo:BTO_0005218 a rdfs:Class ;
  rdfs:label "MC57 cell" ;
  rdfs:comment "C57BL/6-derived methylcholantrene-induced fibrosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000460 .

obo:BTO_0003316 a rdfs:Class ;
  rdfs:label "JB6 Cl41 cell" ;
  rdfs:comment "Mouse skin epidermis cell line; established from primary cultures of neonatal BALB/c epidermal cells that had been treated with dimethylsulfoxide." .

obo:BTO_0004235 a rdfs:Class ;
  rdfs:label "uterine horn" ;
  rdfs:comment "The portion of the uterus to which the intramural section of the uterine tube enters on either the right or left." .

obo:BTO_0000842 a rdfs:Class ;
  rdfs:label "megagametophyte" ;
  rdfs:comment "The female gametophyte produced by a megaspore." ;
  rdfs:subClassOf obo:BTO_0000495 .

obo:BTO_0002461 a rdfs:Class ;
  rdfs:label "posterior hypothalamic nucleus" ;
  rdfs:comment "A nucleus of nerve cells in the posterior hypothalamic region, above the lateral and medial nuclei of the mammillary body; it has major brain stem connections via periventricular fibers and the dorsal longitudinal fasciculus." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0002475 a rdfs:Class ;
  rdfs:label "endopeduncular nucleus" ;
  rdfs:comment "A small nucleus in the internal capsule of the hypothalamus adjacent to the medial edge of the globus pallidus." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0003476 a rdfs:Class ;
  rdfs:label "SK-MEL-2 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0002554 a rdfs:Class ;
  rdfs:label "K-562adr cell" ;
  rdfs:comment "Multidrug resistant K-562 cell line." .

obo:BTO_0003818 a rdfs:Class ;
  rdfs:label "culture condition:DL-lactate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003114 a rdfs:Class ;
  rdfs:label "wound fluid" .

obo:BTO_0002207 a rdfs:Class ;
  rdfs:label "NCI-H460 cell" ;
  rdfs:subClassOf obo:BTO_0002205 .

obo:BTO_0004155 a rdfs:Class ;
  rdfs:label "Ma-25 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line; established from tissue or pleural effusion of Japanese patients with advanced NSCLC." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0006536 a rdfs:Class ;
  rdfs:label "FG-9307 cell" ;
  rdfs:comment "A continuous cell line, derived from gill tissue of the flounder Paralichthys olivaceus." ;
  rdfs:subClassOf obo:BTO_0006535 .

obo:BTO_0001845 a rdfs:Class ;
  rdfs:label "bronchial epithelium" ;
  rdfs:subClassOf obo:BTO_0000419 .

obo:BTO_0004419 a rdfs:Class ;
  rdfs:label "dermal fibroblast" ;
  rdfs:comment "Dermal fibroblasts are the major cell type in dermis and are commonly accepted as terminally differentiated cells." ;
  rdfs:subClassOf obo:BTO_0001255 .

obo:BTO_0000229 a rdfs:Class ;
  rdfs:label "centrum semiovale" ;
  rdfs:comment "The white matter of the cerebral hemispheres which underlies the cerebral cortex and which, in horizontal sections superior to the corpus callosum, has a semioval shape; it contains projection, commissural, and association fibers." .

obo:BTO_0004515 a rdfs:Class ;
  rdfs:label "SF-3061 cell" ;
  rdfs:comment "Human meningioma cell line." ;
  rdfs:subClassOf obo:BTO_0004398 .

obo:BTO_0005949 a rdfs:Class ;
  rdfs:label "glioblastoma multiforme cell line" ;
  rdfs:comment "Glioblastoma multiforme is the most aggressive of the gliomas, a collection of tumors arising from glia or their precursors within the central nervous system." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005661 a rdfs:Class ;
  rdfs:label "buccal mass" ;
  rdfs:comment "The mouthparts in mollusks other than bivalves and the muscles by which they are operated and with which they generally form a more or less compact mass." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0000772 a rdfs:Class ;
  rdfs:label "lymphoblast" ;
  rdfs:comment "Often referred to as a blast cell. Unlike other usages of the suffix -blast a lymphoblast is a further differentiation of a lymphocyte, T- or B-, occasioned by an antigenic stimulus. The lymphoblast usually develops by enlargement of a lymphocyte, active re-entry to the S phase of the cell cycle, mitogenesis and production of much m-RNA and ribosomes." ;
  rdfs:subClassOf obo:BTO_0000775 .

obo:BTO_0006555 a rdfs:Class ;
  rdfs:label "SVG-A cell" ;
  rdfs:comment "Human fetal astrocyte cell line." ;
  rdfs:subClassOf obo:BTO_0002600 .

obo:BTO_0001726 a rdfs:Class ;
  rdfs:label "inflorescence meristem" ;
  rdfs:comment "The relatively undifferentiated, dividing plant tissue that gives rise to the inflorescence." ;
  rdfs:subClassOf obo:BTO_0000852 .

obo:BTO_0005989 a rdfs:Class ;
  rdfs:label "CHO-Lec4A cell" ;
  rdfs:comment "Chinese hamster ovary glycosylation mutant with N-acetylglucosaminyltransferase V activity as in the parental CHO cell line." .

obo:BTO_0003204 a rdfs:Class ;
  rdfs:label "Caki-1 cell" ;
  rdfs:comment "Human renal cancer cell line, established from a 49-years-old male." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0001309 a rdfs:Class ;
  rdfs:label "tuberous root" ;
  rdfs:comment "A thick fleshy storage root like a tuber but lacking buds or scale leaves." ;
  rdfs:subClassOf obo:BTO_0001188 , obo:BTO_0001310 .

obo:BTO_0001791 a rdfs:Class ;
  rdfs:label "pleura" ;
  rdfs:comment "The delicate serous membrane that lines each half of the thorax of mammals and is folded back over the surface of the lung of the same side." .

obo:BTO_0005612 a rdfs:Class ;
  rdfs:label "BL-6 cell" ;
  rdfs:comment "Highly metastatic murine melanoma overexpressing PKC delta BL6 (BL6T) and wild type (BL6) cell line." .

obo:BTO_0001599 a rdfs:Class ;
  rdfs:label "SW-1116 cell" ;
  rdfs:comment "Homo sapiens (human) colon; colorectal adenocarcinoma cell line; established from a 73 year old caucasian male organism." ;
  rdfs:subClassOf obo:BTO_0001914 .

obo:BTO_0004224 a rdfs:Class ;
  rdfs:label "stomodeum" ;
  rdfs:comment "The embryonic anterior ectodermal part of the alimentary canal or tract." ;
  rdfs:subClassOf obo:BTO_0000315 .

obo:BTO_0004700 a rdfs:Class ;
  rdfs:label "anterior pharynx" .

obo:BTO_0001098 a rdfs:Class ;
  rdfs:label "sorocarp" ;
  rdfs:comment "Fruiting body formed by some cellular slime moulds; has both stalk and spore-mass." ;
  rdfs:subClassOf obo:BTO_0000487 .

obo:BTO_0000365 a rdfs:Class ;
  rdfs:label "duodenum" ;
  rdfs:comment "The first part of the small intestine extending from the pylorus to the jejunum." .

obo:BTO_0002367 a rdfs:Class ;
  rdfs:label "cytotrophoblastic cell" ;
  rdfs:comment "Polygonal, mononucleate cells resembling the cells of the cytotrophoblast, having prominent nucleoli and clear, eosinophilic or cyanophilous cytoplasm; one of the two cell types that compose a choriocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001576 .

obo:BTO_0000398 a rdfs:Class ;
  rdfs:label "enterocyte" ;
  rdfs:comment "Cell of the intestinal epithelium." .

obo:BTO_0001238 a rdfs:Class ;
  rdfs:label "Sertoli cell" ;
  rdfs:comment "Any of the elongated, striated cells of the seminiferous tubules of the testis, to which spermatids attach for nourishment during spermatogenesis." ;
  rdfs:subClassOf obo:BTO_0002315 .

obo:BTO_0003858 a rdfs:Class ;
  rdfs:label "chondrocyte cell line" .

obo:BTO_0004043 a rdfs:Class ;
  rdfs:label "intramuscular adipose tissue" ;
  rdfs:comment "Adipose tissue which is located throughout skeletal muscle and is responsible for the marbling seen in certain cuts of beef. In humans, excess accumulation of intramuscular fat is associated with insulin resistance and type 2 diabetes." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0005456 a rdfs:Class ;
  rdfs:label "FM-516-SV cell" ;
  rdfs:comment "An SV40 T-antigen immortalized human foreskin melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0005457 .

obo:BTO_0000091 a rdfs:Class ;
  rdfs:label "ascites" ;
  rdfs:comment "Accumulation of serous fluid in the spaces between tissues and organs in the cavity of the abdomen." .

obo:BTO_0001670 a rdfs:Class ;
  rdfs:label "HuH-6 cell" ;
  rdfs:comment "Human hepatoblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001664 .

obo:BTO_0006070 a rdfs:Class ;
  rdfs:label "Li-23 cell" ;
  rdfs:comment "A human hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0004492 a rdfs:Class ;
  rdfs:label "gastric epithelial cell" .

obo:BTO_0000290 a rdfs:Class ;
  rdfs:label "coronary artery" ;
  rdfs:comment "Either of two arteries that arise one from the left and one from the right side of the aorta immediately above the semilunar valves and supply the tissues of the heart itself." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0001251 a rdfs:Class ;
  rdfs:label "liver sinusoidal endothelial cell" ;
  rdfs:comment "Liver sinusoidal endothelial cells (LSEC) constitute the sinusoidal wall, also called the endothelium, or endothelial lining." ;
  rdfs:subClassOf obo:BTO_0001176 , obo:BTO_0005265 .

obo:BTO_0005780 a rdfs:Class ;
  rdfs:label "WM-902B cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003519 a rdfs:Class ;
  rdfs:label "LI90 cell" ;
  rdfs:comment "Immortalized human hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0001789 a rdfs:Class ;
  rdfs:label "neural lobe" ;
  rdfs:comment "The expanded distal portion of the neurohypophysis." .

obo:BTO_0001244 a rdfs:Class ;
  rdfs:label "urinary tract" ;
  rdfs:comment "The organs of the body that produce and discharge urine. These include the kidneys, ureters, bladder, and urethra." ;
  rdfs:subClassOf obo:BTO_0001491 .

obo:BTO_0002880 a rdfs:Class ;
  rdfs:label "ingluvial ganglion" ;
  rdfs:comment "(Arthropoda: Insecta) Paired ganglion of the stomodeal nervous system at the posterior end of the foregut. The ingluvial ganglion, a major component of the stomatogastric nervous system, is known to innervate the foregut and anterior midgut." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0001802 a rdfs:Class ;
  rdfs:label "rhabdomyosarcoma cell" ;
  rdfs:comment "Malignant tumour (sarcoma) derived from striated muscle." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0001768 a rdfs:Class ;
  rdfs:label "notochord" ;
  rdfs:comment "1: A flexible rodlike structure that forms the main support of the body in the lowest chordates, such as the lancelet; a primitive backbone. 2: A similar structure in embryos of higher vertebrates, from which the spinal column develops." ;
  rdfs:subClassOf obo:BTO_0000818 .

obo:BTO_0002225 a rdfs:Class ;
  rdfs:label "digestive gland cell line" .

obo:BTO_0001363 a rdfs:Class ;
  rdfs:label "testis" ;
  rdfs:comment "A typically paired male reproductive gland that produces sperm and that in most mammals is contained within the scrotum at sexual maturity." ;
  rdfs:subClassOf obo:BTO_0000534 , obo:BTO_0003096 .

obo:BTO_0000950 a rdfs:Class ;
  rdfs:label "Novikoff hepatoma cell" ;
  rdfs:comment "Novikoff hepatoma has been induced by feeding 4-dimethylaminoazobenzene to a male rat." ;
  rdfs:subClassOf obo:BTO_0000608 .

obo:BTO_0000704 a rdfs:Class ;
  rdfs:label "culture condition:D-lactate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003699 a rdfs:Class ;
  rdfs:label "HMy2.C1R cell" ;
  rdfs:comment "The HLA-A,B negative mutant cell line C1R is widely used as a transfection recipient in functional studies of class I MHC genes. It was derived from a normal B cell line." ;
  rdfs:subClassOf obo:BTO_0001522 .

obo:BTO_0001987 a rdfs:Class ;
  rdfs:label "culture condition:dihydrothymine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005286 a rdfs:Class ;
  rdfs:label "13-90 cell" ;
  rdfs:comment "Bloodstream form trypanosome cell line 13-90." ;
  rdfs:subClassOf obo:BTO_0004243 .

obo:BTO_0000923 a rdfs:Class ;
  rdfs:label "nephridium" ;
  rdfs:comment "A tubular glandular excretory organ characteristic of various invertebrates." ;
  rdfs:subClassOf obo:BTO_0000671 .

obo:BTO_0003957 a rdfs:Class ;
  rdfs:label "N-9 cell" ;
  rdfs:comment "Murine microglial cell line." ;
  rdfs:subClassOf obo:BTO_0003349 .

obo:BTO_0003432 a rdfs:Class ;
  rdfs:label "EL-4 cell" ;
  rdfs:comment "Mouse T-lymphocyte lymphoma cell line, established from a lymphoma induced in a C57BL mouse by 9,10-dimethyl-1,2-benzanthracene." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0002106 a rdfs:Class ;
  rdfs:label "neurohemal organ" ;
  rdfs:comment "A system of neurons that has the specialized function to produce and secrete hormones, and that constitutes, in whole or in part, an endocrine organ or system." .

obo:BTO_0004989 a rdfs:Class ;
  rdfs:label "monospore" ;
  rdfs:comment "A spore formed by certain red algae of the Bangioideae as a means of asexual reproduction." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0001728 a rdfs:Class ;
  rdfs:label "tepal" ;
  rdfs:comment "A division of the perianth of a flower having a virtually indistinguishable calyx and corolla, as in tulips and lilies." .

obo:BTO_0003461 a rdfs:Class ;
  rdfs:label "HT-1376 cell" ;
  rdfs:comment "Human urinary bladder carcinoma cell line; established from a transurethral resection of invasive, moderately pleomorphic (grade 3) bladder transitional cell carcinoma of a 58-year-old Caucasian woman who had not received chemo- or radiotherapy." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0001921 a rdfs:Class ;
  rdfs:label "compound eye" ;
  rdfs:comment "An eye (as of an insect) made up of many separate visual units." ;
  rdfs:subClassOf obo:BTO_0000439 .

obo:BTO_0002363 a rdfs:Class ;
  rdfs:label "pancreatic ductal carcinoma cell" ;
  rdfs:comment "Carcinoma that arises from the pancreatic ducts. It accounts for the majority of cancers derived from the pancreas." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0001964 a rdfs:Class ;
  rdfs:label "aorta smooth muscle cell line" ;
  rdfs:subClassOf obo:BTO_0001963 .

obo:BTO_0000977 a rdfs:Class ;
  rdfs:label "ovary cell line" .

obo:BTO_0005032 a rdfs:Class ;
  rdfs:label "CW-2 cell" ;
  rdfs:comment "Human colorectal adenocarcinoma tumor cell line." ;
  rdfs:subClassOf obo:BTO_0001914 .

obo:BTO_0000097 a rdfs:Class ;
  rdfs:label "ascospore" ;
  rdfs:comment "Any of the spores contained in an ascus." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0004403 a rdfs:Class ;
  rdfs:label "tracheal smooth muscle cell" .

obo:BTO_0005795 a rdfs:Class ;
  rdfs:label "osteoma cell" ;
  rdfs:comment "A benign tumor composed of bony tissue, often developing on the skull." ;
  rdfs:subClassOf obo:BTO_0000372 .

obo:BTO_0005072 a rdfs:Class ;
  rdfs:label "NB5 cell" ;
  rdfs:comment "Human neuroblastoma tumor cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0002653 a rdfs:Class ;
  rdfs:label "N2aEGFP cell" ;
  rdfs:comment "N2a cells stably expressing the vector pEGFP." .

obo:BTO_0005499 a rdfs:Class ;
  rdfs:label "NYH cell" ;
  rdfs:comment "Human small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0004797 a rdfs:Class ;
  rdfs:label "accessory olfactory bulb" ;
  rdfs:comment "The accessory olfactory bulb, which resides on the dorsal-posterior region of the main olfactory bulb, forms a parallel pathway independent from the main olfactory bulb. It is the second processing stage of the accessory olfactory system. It receives axonal input from the vomeronasal organ, a distinct sensory epithelium from the main olfactory epithelium that detects pheromones, among other chemical stimuli. Like the main olfactory bulb, axonal input to the accessory olfactory bulb forms synapses with mitral cells within glomeruli. However, mitral cells in the accessory olfactory bulb project their axons to targets in the amygdala and hypothalamus where they may influence aggressive and mating behavior." ;
  rdfs:subClassOf obo:BTO_0000961 .

obo:BTO_0000370 a rdfs:Class ;
  rdfs:label "egg white" ;
  rdfs:comment "Eggs are composed of 56 to 61% egg white and 27 to 32% egg yolk. The egg white is approximately 87 to 89% water and 9 to 11% protein, whereas the egg yolk contains 50% water, 32 to 35% lipid, and 16% protein. The predominant protein in the egg white is ovalbumin, comprising 54% of the protein present. Other major proteins in the egg white are ovotransferrin (12%), ovomucoid (11%), ovomucin (3.5%), and lysozyme." .

obo:BTO_0006402 a rdfs:Class ;
  rdfs:label "IPEC-J2 cell" ;
  rdfs:comment "Porcine intestinal jejunum cell line; established from normal intestinal epithelium cells isolated from the jejunum of a neonatal, unsuckled pig." ;
  rdfs:subClassOf obo:BTO_0000003 .

obo:BTO_0003338 a rdfs:Class ;
  rdfs:label "CS-54 cell" ;
  rdfs:comment "Rat pulmonary artery smooth muscle cell line." ;
  rdfs:subClassOf obo:BTO_0003337 .

obo:BTO_0005027 a rdfs:Class ;
  rdfs:label "GM-3299 cell" ;
  rdfs:comment "B-lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0002323 a rdfs:Class ;
  rdfs:label "eccrine sweat gland" ;
  rdfs:comment "An ordinary, or simple, sweat gland; they are of the merocrine type, unbranched, coiled, tubular glands that are distributed over almost all of the body surface, and promote cooling by evaporation of their secretion." ;
  rdfs:subClassOf obo:BTO_0001331 , obo:BTO_0002324 .

obo:BTO_0001421 a rdfs:Class ;
  rdfs:label "uterine cervix" ;
  rdfs:comment "A constricted portion of an organ or part; especially: the narrow outer end of the uterus." .

obo:BTO_0000376 a rdfs:Class ;
  rdfs:label "electric organ" ;
  rdfs:comment "A specialized tract of tissue, as in the electric eel, in which electricity is generated." .

obo:BTO_0003797 a rdfs:Class ;
  rdfs:label "unicellular trichome" ;
  rdfs:comment "Trichome that consists of one cell." ;
  rdfs:subClassOf obo:BTO_0001395 .

obo:BTO_0002962 a rdfs:Class ;
  rdfs:label "1290-2 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004678 a rdfs:Class ;
  rdfs:label "regio frontalis capitis" ;
  rdfs:comment "The surface region of the head corresponding to the outlines of the frontal bone." .

obo:BTO_0003132 a rdfs:Class ;
  rdfs:label "microsporidian" ;
  rdfs:comment "Any protozoan of the order Microsporida." ;
  rdfs:subClassOf obo:BTO_0002503 .

obo:BTO_0001082 a rdfs:Class ;
  rdfs:label "MM46 cell" ;
  rdfs:comment "Mouse mammary carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0004061 a rdfs:Class ;
  rdfs:label "CHL-1 cell" ;
  rdfs:comment "Human skin melanoma cell line. This is a derivative of the RPMI 7932 human melanoma cell line." .

obo:BTO_0003641 a rdfs:Class ;
  rdfs:label "FLO-1 cell" ;
  rdfs:comment "Esophageal adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002817 .

obo:BTO_0003251 a rdfs:Class ;
  rdfs:label "CCD-841 cell" ;
  rdfs:comment "Colon epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003250 .

obo:BTO_0004010 a rdfs:Class ;
  rdfs:label "HT-2 cell" ;
  rdfs:comment "This murine T-helper cell-derived CD35(+) cell line of BALB/c origin does not express CD4 or CD8." ;
  rdfs:subClassOf obo:BTO_0001045 .

obo:BTO_0000750 a rdfs:Class ;
  rdfs:label "plant ovary" ;
  rdfs:comment "The enlarged rounded usually basal portion of the pistil or gynoecium of an angiospermous plant that bears the ovules and consists of one or more carpels." .

obo:BTO_0001496 a rdfs:Class ;
  rdfs:label "perivascular astrocyte" ;
  rdfs:comment "Astrocyte located around the blood vessels." ;
  rdfs:subClassOf obo:BTO_0000925 .

obo:BTO_0001155 a rdfs:Class ;
  rdfs:label "ray cell" ;
  rdfs:comment "A primary tissue composed of medullary ray: radiating bands of parenchyma cells extending between the vascular bundles of herbaceous dicotyledonous stems and connecting the pith with the cortex." ;
  rdfs:subClassOf obo:BTO_0000999 .

obo:BTO_0006324 a rdfs:Class ;
  rdfs:label "culture condition:mesaconate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004100 a rdfs:Class ;
  rdfs:label "sweat gland clear cell" ;
  rdfs:comment "Cell with empty-appearing cytoplasm; seen normally in the sweat glands, the parathyroid glands, the collecting tubules of the kidneys, and the epididymis; they also appear in some types of cancer." .

obo:BTO_0003352 a rdfs:Class ;
  rdfs:label "brain capillary endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0003249 .

obo:BTO_0002848 a rdfs:Class ;
  rdfs:label "granulosa-theca cell tumor cell" ;
  rdfs:comment "An ovarian tumor predominantly composed of either granulosa cells (follicular cells) or theca cells, and often associated with excessive production of estrogen, with hyperplasia and carcinoma of the endometrium. When luteinized, i.e., having cells resembling those of the corpus luteum, it is known as luteoma." ;
  rdfs:subClassOf obo:BTO_0002847 .

obo:BTO_0003917 a rdfs:Class ;
  rdfs:label "KB-V1 cell" ;
  rdfs:comment "Human cervix carcinoma cell line resistant to vinblastine; a multidrug-resistant (mdr) subclone derived from KB-3-1." .

obo:BTO_0004909 a rdfs:Class ;
  rdfs:label "Purkinje layer" ;
  rdfs:comment "The cerebellar cortex is divided into three layers. At the bottom lies the thick granular layer. In the middle lies the Purkinje layer, a narrow zone that contains only the cell bodies of Purkinje cells. At the top lies the molecular layer." .

obo:BTO_0006040 a rdfs:Class ;
  rdfs:label "mesophyll cell" ;
  rdfs:comment "Mesophyll cells are a type of ground tissue found in the plants leaves. There are two types: palisade mesophyll cells and spongey mesophyll cells." ;
  rdfs:subClassOf obo:BTO_0000858 .

obo:BTO_0005462 a rdfs:Class ;
  rdfs:label "hemolymph vessel" ;
  rdfs:comment "In an insect it extends from the posterior extremity to the head, and it is enlarged and muscular posteriorly, constituting the heart." .

obo:BTO_0001813 a rdfs:Class ;
  rdfs:label "fast twitch muscle fiber" ;
  rdfs:comment "Paler-colored muscle fibers of larger diameter than slow twitch fibers, and having less sarcoplasm and more prominent cross-striping; used for forceful and rapid contractions over short periods of time." ;
  rdfs:subClassOf obo:BTO_0002319 .

obo:BTO_0004890 a rdfs:Class ;
  rdfs:label "CHCY-1 cell" ;
  rdfs:comment "Human colonic carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002609 a rdfs:Class ;
  rdfs:label "astroglial cell" ;
  rdfs:comment "Neuroglia tissue made up of astrocytes." ;
  rdfs:subClassOf obo:BTO_0002606 .

obo:BTO_0004563 a rdfs:Class ;
  rdfs:label "thymic medullary epithelial cell" ;
  rdfs:comment "Thymic stromal cells include thymic cortical epithelial cells, thymic medullary epithelial cells, and dendritic cells." ;
  rdfs:subClassOf obo:BTO_0004561 .

obo:BTO_0002009 a rdfs:Class ;
  rdfs:label "artery wall" ;
  rdfs:comment "The wall of an artery consists typically of an outer coat (tunica externa), a middle coat (tunica media), and an inner coat (tunica intima)." .

obo:BTO_0004780 a rdfs:Class ;
  rdfs:label "soft tissue sarcoma cell line" .

obo:BTO_0001616 a rdfs:Class ;
  rdfs:label "colorectal cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001532 , obo:BTO_0001533 , obo:BTO_0001614 .

obo:BTO_0002536 a rdfs:Class ;
  rdfs:label "feather vane" ;
  rdfs:comment "The flattened part of the feather that is attached on either side of the rachis. Each feather has two vanes." .

obo:BTO_0004570 a rdfs:Class ;
  rdfs:label "ulcer tissue" ;
  rdfs:comment "A lesion of the skin or of a mucous membrane, such as the one lining the stomach or duodenum, that is accompanied by formation of pus and necrosis of surrounding tissue, usually resulting from inflammation or ischemia." .

obo:BTO_0003348 a rdfs:Class ;
  rdfs:label "C20D cell" ;
  rdfs:comment "Catharanthus roseus cell line, which synthesizes monoterpenoid indole alkaloids in response to auxin depletion from the culture medium." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0005511 a rdfs:Class ;
  rdfs:label "embryonic carcinoma cell" .

obo:BTO_0001147 a rdfs:Class ;
  rdfs:label "culture condition:pyridoxine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003055 a rdfs:Class ;
  rdfs:label "NW-16 cell" ;
  rdfs:comment "Tumorigenic, Fujinami sarcoma virus transformed, R2 rat fibroblast (Rat-2) cell line." .

obo:BTO_0004338 a rdfs:Class ;
  rdfs:label "GN5 cell" ;
  rdfs:comment "Rapamycin-sensitive rat hepatic cell line." .

obo:BTO_0006085 a rdfs:Class ;
  rdfs:label "212LN cell" ;
  rdfs:comment "Head and neck cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0000128 a rdfs:Class ;
  rdfs:label "blastula" ;
  rdfs:comment "The usually spherical structure produced by cleavage of a zygote, consisting of a single layer of cells (blastoderm) surrounding a fluid-filled cavity (blastocoele)." .

obo:BTO_0001028 a rdfs:Class ;
  rdfs:label "peripheral nervous system" ;
  rdfs:comment "The peripheral nervous system (PNS) connects the central nervous system (CNS) to sensory organs (such as the eye and ear), other organs of the body, muscles, blood vessels and glands." .

obo:BTO_0001641 a rdfs:Class ;
  rdfs:label "bronchial bud" ;
  rdfs:comment "An outgrowth from the stem bronchus giving rise to the air passages of its respective pulmonary lobe." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0002296 a rdfs:Class ;
  rdfs:label "capsular epithelium" ;
  rdfs:comment "The outer, or parietal, layer of the renal glomerular capsule, composed of simple squamous epithelium, and separated from the inner, or visceral, layer by the capsular space." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003121 a rdfs:Class ;
  rdfs:label "villus" ;
  rdfs:comment "Any of the small, slender, vascular projections that increase the surface area of a membrane. Important villous membranes include the placenta and the mucous-membrane coating of the small intestine. Each villus has a central core composed of one artery and one vein, a strand of muscle, a centrally located lymphatic capillary, and connective tissue that adds support to the structures. Covering the core of a villus is the surface mucous-membrane layer. This is mainly composed of two cell types: tall, narrow, columnar cells and goblet cells." .

obo:BTO_0002079 a rdfs:Class ;
  rdfs:label "puerperal osteomalacia cell" ;
  rdfs:comment "A cell of osteomalacia occurring as a consequence of exhaustion of skeletal stores of calcium and phosphorus by repeated pregnancies and lactation." ;
  rdfs:subClassOf obo:BTO_0002076 .

obo:BTO_0006391 a rdfs:Class ;
  rdfs:label "ephyra" ;
  rdfs:comment "A free-swimming larva of a scyphozoan jellyfish formed by transverse fission of a scyphistoma and growing into a medusa." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0000934 a rdfs:Class ;
  rdfs:label "IMR-32 cell" ;
  rdfs:comment "Human neuroblastoma, established from an abdominal mass (diagnosed as neuroblastoma) of a 1-year-old caucasian boy in 1967." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0005300 a rdfs:Class ;
  rdfs:label "muscle stem cell" ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0003974 a rdfs:Class ;
  rdfs:label "pulmonary sclerosing hemangioma cell" ;
  rdfs:comment "A benign neoplasm of alveolar pneumocytes or ontogenetically primitive counterparts thereof." ;
  rdfs:subClassOf obo:BTO_0000551 .

obo:BTO_0006074 a rdfs:Class ;
  rdfs:label "CNE-1 cell" ;
  rdfs:comment "Is thought to be a human nasopharyngeal carcinoma cell line. Seems to be the same as CNE-2. Could be generated by fusion of HeLa with an NPC cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0001402 a rdfs:Class ;
  rdfs:label "urogenital ridge" ;
  rdfs:comment "A pair of dorsolateral mesodermal ridges in the vertebrate embryo out of which the urogenital organs are developed." .

obo:BTO_0000381 a rdfs:Class ;
  rdfs:label "embryonic blood" ;
  rdfs:subClassOf obo:BTO_0000089 .

obo:BTO_0003498 a rdfs:Class ;
  rdfs:label "OVISE cell" ;
  rdfs:comment "Human ovarian carcinoma cell line from clear cell adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0006415 .

obo:BTO_0000087 a rdfs:Class ;
  rdfs:label "arterial smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0003229 a rdfs:Class ;
  rdfs:label "SK-LC-16 cell" ;
  rdfs:comment "Human non-small cell lung carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0001003 a rdfs:Class ;
  rdfs:label "parotid acinar cell" ;
  rdfs:subClassOf obo:BTO_0000433 .

obo:BTO_0000179 a rdfs:Class ;
  rdfs:label "Colo-205 cell" ;
  rdfs:comment "Human Caucasian colon adenocarcinoma cell line. Isolated from ascitic fluid of a 70-year-old Caucasian male with carcinoma of the colon." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0002911 a rdfs:Class ;
  rdfs:label "S194/5.XXO.BU.1 cell" ;
  rdfs:comment "Mouse B-lymphocyte myeloma/plasmacytoma cell line. Derived from the S194/5.XXO-1 cell line." .

obo:BTO_0005038 a rdfs:Class ;
  rdfs:label "HeLa-LTRHIV-1-Luc cell" .

obo:BTO_0000393 a rdfs:Class ;
  rdfs:label "endothelium" ;
  rdfs:comment "An epithelium of mesodermal origin composed of a single layer of thin flattened cells that lines internal body cavities." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0005078 a rdfs:Class ;
  rdfs:label "foot sole" ;
  rdfs:comment "The underside of the foot." .

obo:BTO_0004357 a rdfs:Class ;
  rdfs:label "Brodmann area 36" ;
  rdfs:comment "Ectorhinal area 36 is a subdivision of the cytoarchitecturally defined temporal region of cerebral cortex. With its medial boundary corresponding approximately to the rhinal sulcus it is located primarily in the fusiform gyrus." .

obo:BTO_0002385 a rdfs:Class ;
  rdfs:label "GLC-4 cell" ;
  rdfs:comment "Human small cell lung cancer (SCLC) cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005918 a rdfs:Class ;
  rdfs:label "OCUM-1 cell" ;
  rdfs:comment "Human gastric cancer cell line,  derived from Borrmann type IV tumor of the stomach." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0003068 a rdfs:Class ;
  rdfs:label "PNT-1A cell" ;
  rdfs:comment "Human prostate normal cell line, immortalised with SV40. The primary culture was obtained from the prostate of a 35 year old male at post mortem." ;
  rdfs:subClassOf obo:BTO_0001019 .

obo:BTO_0000307 a rdfs:Class ;
  rdfs:label "crystalline style" ;
  rdfs:comment "The crystalline style, a gelatinous rod, projects into the stomach and stirs the contents as well as produces digestive enzymes to aid digestion." .

obo:BTO_0003435 a rdfs:Class ;
  rdfs:label "memory T-lymphocyte" ;
  rdfs:comment "A T-cell that bears receptors for a specific foreign antigen encountered during a prior infection or vaccination. After an infection or a vaccination, some of the T-cells that participated in the response remain as memory T-cells, which can rapidly mobilize and clone themselves should the same antigen be re-encountered during a second infection at a later time." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0000570 a rdfs:Class ;
  rdfs:label "hematopoietic system" ;
  rdfs:comment "The tissues concerned in production of the blood, including the bone marrow, liver, lymph nodes, spleen, and thymus." .

obo:BTO_0002981 a rdfs:Class ;
  rdfs:label "alpha-TC1.9 cell" ;
  rdfs:comment "Glucagon-releasing mouse cell line." ;
  rdfs:subClassOf obo:BTO_0002980 .

obo:BTO_0000139 a rdfs:Class ;
  rdfs:label "body wall" ;
  rdfs:comment "The portion of an animal body that consists of ectoderm and mesoderm, forms the external body surface, and encloses the body cavity." .

obo:BTO_0001017 a rdfs:Class ;
  rdfs:label "pericarp" ;
  rdfs:comment "The ripened and variously modified walls of a plant ovary." .

obo:BTO_0002255 a rdfs:Class ;
  rdfs:label "HCT-8 cell" ;
  rdfs:comment "Human colonic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0003950 a rdfs:Class ;
  rdfs:label "DKC-8 cell" ;
  rdfs:comment "Murine distal tubular epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003949 .

obo:BTO_0001504 a rdfs:Class ;
  rdfs:label "blastodisc" ;
  rdfs:comment "The embryo-forming portion of an egg with discoidal cleavage usually appearing as a small disc on the upper surface of the yolk mass." .

obo:BTO_0002489 a rdfs:Class ;
  rdfs:label "promyelocytic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0001937 a rdfs:Class ;
  rdfs:label "RL-19 cell" ;
  rdfs:comment "Neonatal liver cell line from newborn rats." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0000463 a rdfs:Class ;
  rdfs:label "filament" ;
  rdfs:comment "Part of the stamen in a flower that supports the anther. A chainlike series of cells, as in many algae." .

obo:BTO_0002464 a rdfs:Class ;
  rdfs:label "ventrobasal complex of thalamus" ;
  rdfs:comment "The nuclei that form the posterior ventral part of the ventral nuclei of the thalamus, comprising a posterolateral nucleus and a posteromedial nucleus." ;
  rdfs:subClassOf obo:BTO_0002467 .

obo:BTO_0002472 a rdfs:Class ;
  rdfs:label "ventromedial hypothalamic nucleus" ;
  rdfs:comment "A group of nerve cell bodies found in the ventral portion of the intermediate hypothalamic region; it is involved in diverse functions, for example, food intake and sexual behavior." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0003656 a rdfs:Class ;
  rdfs:label "adams apple" ;
  rdfs:comment "This familiar feature in front of the neck is due to forward protrusion of the largest cartilage of the larynx. It takes its name from the story that a piece of the forbidden fruit stuck in Adams throat." ;
  rdfs:subClassOf obo:BTO_0003655 .

obo:BTO_0000184 a rdfs:Class ;
  rdfs:label "medullary thyroid carcinoma cell" ;
  rdfs:comment "A cell ot a type of thyroid gland carcinoma that contains amyloid deposits and parafollicular cells and secretes calcitonin. It occurs in both an autosomal dominant form as a component of multiple endocrine neoplasia, types II and III, and in a nonfamilial form." ;
  rdfs:subClassOf obo:BTO_0000191 , obo:BTO_0000196 .

obo:BTO_0001993 a rdfs:Class ;
  rdfs:label "culture condition:thymine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003696 a rdfs:Class ;
  rdfs:label "ATRkd cell" ;
  rdfs:comment "Human osteosarcoma-derived U2OS cell line." .

obo:BTO_0002543 a rdfs:Class ;
  rdfs:label "alveolar wall" ;
  rdfs:comment "The alveolar walls contain capillaries and a very small interstitial space. In some alveolar walls there are pores between alveoli. There are two major alveolar cell types in the alveolar wall: 1. Flat Type I cells forming the structure of a alveolar wall. 2. Type II cells which secrete surfactant which lowers the surface tension and divide to produce Type I cells." .

obo:BTO_0003775 a rdfs:Class ;
  rdfs:label "SCC-4 cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line; established from the squamous cell carcinoma of the tongue from a 55-year-old man after radio- and chemotherapy in 1980." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0003577 a rdfs:Class ;
  rdfs:label "renal proximal tubule epithelium cell line" ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0002195 a rdfs:Class ;
  rdfs:label "vascular smooth muscle cell line" .

obo:BTO_0000471 a rdfs:Class ;
  rdfs:label "culture condition:fluorene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005215 a rdfs:Class ;
  rdfs:label "KB-C2 cell" ;
  rdfs:comment "Human epidermoid carcinoma cell line. KB cells were subcloned twice; a singly recloned line, KB-3-1, was used as the parental cell line. Multidrug-resistant KB-C2 cells that overexpress P-gp were originally isolated from KB-3- 1 cells exposed to increasing concentrations of colchicine, and maintained in medium containing 2 ug/ml of colchicine." .

obo:BTO_0006356 a rdfs:Class ;
  rdfs:label "renal oncocytoma cell" ;
  rdfs:comment "Renal oncocytoma is thought to arise from the intercalated cells of collecting ducts of the kidney." ;
  rdfs:subClassOf obo:BTO_0000680 .

obo:BTO_0001136 a rdfs:Class ;
  rdfs:label "proventriculus" ;
  rdfs:comment "1: The glandular or true stomach of a bird that is situated between the crop and gizzard. 2: A muscular dilatation of the foregut in most mandibulate insects that is armed internally with chitinous teeth or plates for triturating food. 3: The thin-walled sac in front of the gizzard of an earthworm." .

obo:BTO_0003829 a rdfs:Class ;
  rdfs:label "culture condition:pyruvate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002768 a rdfs:Class ;
  rdfs:label "mammary epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0000816 .

obo:BTO_0001320 a rdfs:Class ;
  rdfs:label "internal plexiform layer" .

obo:BTO_0005806 a rdfs:Class ;
  rdfs:label "flexor tendon" ;
  rdfs:comment "The flexor tendons are strong smooth cords that connect the muscles of the forearm to the bones in the fingers and thumb. There are two to each finger and one for the thumb." ;
  rdfs:subClassOf obo:BTO_0001356 .

obo:BTO_0002449 a rdfs:Class ;
  rdfs:label "hypothalamic nucleus" .

obo:BTO_0000693 a rdfs:Class ;
  rdfs:label "culture condition:L-lyxose-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0004327 a rdfs:Class ;
  rdfs:label "CESS cell" ;
  rdfs:comment "A human lymphoblastoid B-cell line expressing the cell surface marker CD43 (leukocyte sialoglycoprotein sialophorin). The cell line was established from peripheral blood cells of a patient with myelomonocytic leukemia and immortalized by transformation with Epstein Barr virus." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0006000 a rdfs:Class ;
  rdfs:label "WPE-int cell" ;
  rdfs:comment "WPE-int cells were derived from the RWPE-1 cell line after two consecutive cycles of single cell cloning. To establish the RWPE-1 cell line, epithelial cells from the peripheral zone of a histologically normal adult human prostate were transfected with a plasmid carrying one copy of the human papilloma virus 18 genome." .

obo:BTO_0006547 a rdfs:Class ;
  rdfs:label "HUP-T3 cell" ;
  rdfs:comment """Human pancreas carcinoma cell line,
established from the malignant ascites of a 66-year-old man with pancreas carcinoma in 1984.""" ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0000928 a rdfs:Class ;
  rdfs:label "limbic system" ;
  rdfs:comment "A group of subcortical structures (as the hypothalamus, the hippocampus, and the amygdala) of the brain that are concerned especially with emotion and motivation." .

obo:BTO_0001536 a rdfs:Class ;
  rdfs:label "SW-1417 cell" ;
  rdfs:comment "Human colon; colorectal adenocarcinoma cell line. Morphology: epithelial." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0003685 a rdfs:Class ;
  rdfs:label "habenular nucleus" ;
  rdfs:comment "The gray matter of the habenula, composed of a small-celled medial and a larger-celled lateral habenular nucleus; both nuclei receive fibres from basal forebrain regions (septum, basal nucleus, lateral preoptic nucleus); the lateral habenular nucleus receives an additional projection from the medial segment of the globus pallidus. Both nuclei project by way of the retroflex fasciculus to the interpeduncular nucleus and a medial zone of the midbrain tegmentum." ;
  rdfs:subClassOf obo:BTO_0002700 .

obo:BTO_0006337 a rdfs:Class ;
  rdfs:label "uterine endometrial clear cell carcinoma cell" ;
  rdfs:comment "Epithelial cell derived carcinoma, arising in the endometrium of the uterus, characterized by the presence of clear cells observed during histological, diagnostic assessment." ;
  rdfs:subClassOf obo:BTO_0003871 .

obo:BTO_0006380 a rdfs:Class ;
  rdfs:label "BEL-7404-CP20 cell" ;
  rdfs:comment "BEL-7404 cell line, growing in 20microgramm per milliliter cisplatin for 24 months." .

obo:BTO_0000881 a rdfs:Class ;
  rdfs:label "Morris hepatoma 7777 cell" ;
  rdfs:comment "Morris hepatoma 7777 is obtained from a male Buffalo strain rat, induced with N-2 fluorenylphthalamic acid." ;
  rdfs:subClassOf obo:BTO_0001080 .

obo:BTO_0000344 a rdfs:Class ;
  rdfs:label "stratum corneum" ;
  rdfs:comment "The horny outer layer of the epidermis, consisting mainly of dead or peeling cells." .

obo:BTO_0001515 a rdfs:Class ;
  rdfs:label "glomerular epithelium" ;
  rdfs:comment "The inner, or visceral, layer of the renal glomerular capsule, overlying the capillaries, composed of podocytes, and separated from the outer, or parietal, layer by the capsular, Bowman,s space." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0004461 a rdfs:Class ;
  rdfs:label "KYSE-30 cell" ;
  rdfs:comment "Well differentiated human squamous cell carcinoma from esophageal cancer." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0001807 a rdfs:Class ;
  rdfs:label "utricle" ;
  rdfs:comment "The part of the membranous labyrinth of the inner ear into which the semicircular canals open." .

obo:BTO_0005067 a rdfs:Class ;
  rdfs:label "PAM212 cell" ;
  rdfs:comment "1. Murine cutaneous squamous cell carcinoma cell line. 2. Murine keratinocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000375 , obo:BTO_0002024 .

obo:BTO_0004111 a rdfs:Class ;
  rdfs:label "gastrointestinal stromal tumor cell" ;
  rdfs:comment "A type of tumor that usually begins in cells in the wall of the gastrointestinal tract. It can be benign or malignant." ;
  rdfs:subClassOf obo:BTO_0001533 .

obo:BTO_0005390 a rdfs:Class ;
  rdfs:label "SUM-52PE cell" ;
  rdfs:comment "Human breast cancer cell line, derived from primary human luminal breast epithelial cells of a pleural effusion." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0003058 a rdfs:Class ;
  rdfs:label "NB2a/d1 cell" ;
  rdfs:comment "Mouse neuroblastoma cell line." .

obo:BTO_0003275 a rdfs:Class ;
  rdfs:label "HSVEC cell" ;
  rdfs:comment "Human saphenous vein endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003274 .

obo:BTO_0002573 a rdfs:Class ;
  rdfs:label "TERA-2 cell" ;
  rdfs:comment "Human embryonal carcinoma (teratocarcinoma). NTERA-2 was cloned from cell line TERA-2 which was derived from a metastatic teratocarcinoma of a 22-year-old Caucasian male." ;
  rdfs:subClassOf obo:BTO_0001437 .

obo:BTO_0001249 a rdfs:Class ;
  rdfs:label "silique" ;
  rdfs:comment "A narrow elongated two-valved usually many-seeded capsule that is characteristic of the mustard family, opens by sutures at either margin, and has two parietal placentas." ;
  rdfs:subClassOf obo:BTO_0000173 .

obo:BTO_0000714 a rdfs:Class ;
  rdfs:label "leaf axil" ;
  rdfs:comment "The angle between a leaf and the axis from which it arises." .

obo:BTO_0004717 a rdfs:Class ;
  rdfs:label "large granular lymphocyte" ;
  rdfs:comment "A type of white blood cell that contains granules with enzymes that can kill tumor cells or microbial cells." ;
  rdfs:subClassOf obo:BTO_0000775 .

obo:BTO_0004690 a rdfs:Class ;
  rdfs:label "arterial system" ;
  rdfs:comment "The arterial system is the higher-pressure portion of the circulatory system." ;
  rdfs:subClassOf obo:BTO_0001085 .

obo:BTO_0000127 a rdfs:Class ;
  rdfs:label "blastospore" ;
  rdfs:comment "A fungal spore produced by budding." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0001861 a rdfs:Class ;
  rdfs:label "BxPC-3 cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line, established from a 61 year old human female." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0001100 a rdfs:Class ;
  rdfs:label "B-cell acute lymphoblastic leukemia cell" ;
  rdfs:comment "A rare subtype consisting of lymphoblasts that express surface immunoglobulins and have a chromosomal translocation similar to that of Burkitt's lymphoma." ;
  rdfs:subClassOf obo:BTO_0000731 .

obo:BTO_0002916 a rdfs:Class ;
  rdfs:label "striated muscle cell" ;
  rdfs:comment "An elongated contractile cell in striated muscle tissue." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0005517 a rdfs:Class ;
  rdfs:label "lyophilized cell" ;
  rdfs:comment "Lyophilization is a dehydration process typically used to preserve a perishable material or make the material more convenient for transport. Freeze-drying works by freezing the material and then reducing the surrounding pressure to allow the frozen water in the material to sublimate directly from the solid phase to the gas phase." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0006456 a rdfs:Class ;
  rdfs:label "HPDE6-C7 cell" ;
  rdfs:comment "Immortal human pancreatic duct epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0000183 .

obo:BTO_0006367 a rdfs:Class ;
  rdfs:label "pericryptal fibroblast" ;
  rdfs:comment "Flattened fibroblasts forming a sheath around the intestinal glands of the colon." ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0003020 a rdfs:Class ;
  rdfs:label "NCI-H209 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0003869 a rdfs:Class ;
  rdfs:label "tritocerebrum" ;
  rdfs:comment "The third set of fused ganglia composing the insect brain." .

obo:BTO_0006142 a rdfs:Class ;
  rdfs:label "M4A4 LM3-4 CL16 GFP cell" ;
  rdfs:comment "Human melanocyte melanoma cell line. Recent studies have generated questions about the origin of the parent cell line, MDA-MB-435. Gene expression analysis of the cells produced microarrays in which MDA-MB-435 clustered with cell lines of melanoma origin instead of breast." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001150 a rdfs:Class ;
  rdfs:label "culture condition:quinaldine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001982 a rdfs:Class ;
  rdfs:label "chemostat culture" ;
  rdfs:comment "Culture using an apparatus in which the environment is so controlled that bacterial populations are maintained in a steady state of continuous cell division in a constant environment." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0004133 a rdfs:Class ;
  rdfs:label "IOSE-4p2 cell" ;
  rdfs:comment "Immortalized not tumorigenic human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004130 .

obo:BTO_0001293 a rdfs:Class ;
  rdfs:label "sporulated oocyst" ;
  rdfs:comment "A sporozoan zygote undergoing sporogenous development." ;
  rdfs:subClassOf obo:BTO_0001773 .

obo:BTO_0003152 a rdfs:Class ;
  rdfs:label "papillary thyroid cancer cell" ;
  rdfs:comment "Cancer that forms in follicular cells in the thyroid and grows in small finger-like shapes. It grows slowly, is more common in women than in men, and often occurs before age 45. It is the most common type of thyroid cancer." ;
  rdfs:subClassOf obo:BTO_0000196 .

obo:BTO_0002779 a rdfs:Class ;
  rdfs:label "endospore" ;
  rdfs:comment "A small asexual spore, as that formed by some bacteria." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0003934 a rdfs:Class ;
  rdfs:label "KKU-100 cell" ;
  rdfs:comment "Human cholangiocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0002439 a rdfs:Class ;
  rdfs:label "genital mucosa" ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0005726 a rdfs:Class ;
  rdfs:label "Lunet-Con1 cell" ;
  rdfs:comment "Lunet-Con1 cell line was derived from Lunet cell line." .

obo:BTO_0002949 a rdfs:Class ;
  rdfs:label "938 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000027 a rdfs:Class ;
  rdfs:label "achene" ;
  rdfs:comment "A small dry indehiscent one-seeded fruit (as of a sunflower) developing from a simple ovary and usually having a thin pericarp attached to the seed at only one point." ;
  rdfs:subClassOf obo:BTO_0000486 .

obo:BTO_0004558 a rdfs:Class ;
  rdfs:label "sublingual gland duct" ;
  rdfs:comment "The duct associated with sublingual salivary gland. Located on the floor of the oral cavity, inferior to the tongue." .

obo:BTO_0000590 a rdfs:Class ;
  rdfs:label "Alzheimer disease specific cell type" ;
  rdfs:comment "Alzheimer is a disease marked by the loss of cognitive ability, generally over a period of 10 to 15 years, and associated with the development of abnormal tissues and protein deposits in the cerebral cortex." .

obo:BTO_0004036 a rdfs:Class ;
  rdfs:label "UCI-107 cell" ;
  rdfs:comment "Human gynecologic ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004217 a rdfs:Class ;
  rdfs:label "SK-N-DZ cell" ;
  rdfs:comment "Neuroblastoma cell line derived in 1978 from a bone marrow metastasis from a 2 years old caucasian female child with poorly differentiated embryonal neuroblastoma." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0003569 a rdfs:Class ;
  rdfs:label "C57MG cell" ;
  rdfs:comment "Normal murine mammary gland cell line." ;
  rdfs:subClassOf obo:BTO_0003568 .

obo:BTO_0003906 a rdfs:Class ;
  rdfs:label "uroepithelium" ;
  rdfs:comment "The epithelium of the urinary tract. The lining of the ureters, bladder, and urethra." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003429 a rdfs:Class ;
  rdfs:label "BIC-1 cell" ;
  rdfs:comment "Barrett's esophageal adenocarcinoma cell line." .

obo:BTO_0005296 a rdfs:Class ;
  rdfs:label "KBH5.0 cell" ;
  rdfs:comment "This cell line is derived from KB-3-1 by stepwise selection against Hoechst 33342." .

obo:BTO_0003188 a rdfs:Class ;
  rdfs:label "SNU-449 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006294 a rdfs:Class ;
  rdfs:label "BWZ.36 cell" ;
  rdfs:comment "Mouse lymphoma cell line, derived by transfecting alpha-beta-BW5147 cells with the NFAT-lacZ construct." .

obo:BTO_0001609 a rdfs:Class ;
  rdfs:label "LS-180 cell" ;
  rdfs:comment "Human, Caucasian, colon, adenocarcinoma, colorectal, cell line. Morphology: epithelial; Species: human, Caucasian female 58 year old; Tissue: colon; Tumor: adenocarcinoma, colorectal." ;
  rdfs:subClassOf obo:BTO_0001914 .

obo:BTO_0003270 a rdfs:Class ;
  rdfs:label "Me665/2 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006288 a rdfs:Class ;
  rdfs:label "MGH-U4 cell" ;
  rdfs:comment "MGH-U3 and -U4, derived respectively from a grade 1 tumor and an urothelium biopsy with severe atypia, are likely to be independent human bladder cell lines and different from other transitional cell bladder carcinoma cell lines reported." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0005179 a rdfs:Class ;
  rdfs:label "PSN-1 cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0005245 a rdfs:Class ;
  rdfs:label "culture condition:CD31+ cell" ;
  rdfs:comment "CD-31 is normally found on endothelial cells, platelets, macrophages and Kupffer cells, granulocytes, T / NK cells, lymphocytes, megakaryocytes, osteoclasts, neutrophils. CD-31 is also expressed in certain tumors, including epithelioid hemangioendothelioma, epithelioid sarcoma-like hemangioendothelioma, other vascular tumors, histiocytic malignancies, and plasmacytomas. It is rarely found in some sarcomas and carcinomas." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0003616 a rdfs:Class ;
  rdfs:label "peritoneal dialysis fluid" ;
  rdfs:comment "The peritoneal dialysis is a technique that uses the patients own body tissues inside of the abdominal cavity to act as a filter. A special fluid is flushed into the abdominal cavity and washes around the intestines. The intestinal walls act as a filter between this fluid and the blood stream. By using different types of solutions, waste products and excess water can be removed from the body through this process." .

obo:BTO_0006394 a rdfs:Class ;
  rdfs:label "GES-1 cell" ;
  rdfs:comment "Normal human gastric epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004493 .

obo:BTO_0002316 a rdfs:Class ;
  rdfs:label "stellate cell" ;
  rdfs:comment "Any cell having a star-shaped appearance produced by numerous processes that extend in different directions, such as the Kupffer cells in the liver, astrocytes, and granule cells in the granular layers of the cerebral and cerebellar cortices." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0000523 a rdfs:Class ;
  rdfs:label "gleba" ;
  rdfs:comment "The fleshy, spore-bearing inner mass of a puffball." .

obo:BTO_0004053 a rdfs:Class ;
  rdfs:label "umbilical cord blood" ;
  rdfs:comment "Blood from the umbilical cord of a newborn baby. This blood contains high concentrations of stem cells." ;
  rdfs:subClassOf obo:BTO_0000089 .

obo:BTO_0001547 a rdfs:Class ;
  rdfs:label "sepal" ;
  rdfs:comment "One of the modified leaves comprising a calyx." .

obo:BTO_0001357 a rdfs:Class ;
  rdfs:label "tentacle" ;
  rdfs:comment "Any of various elongate flexible usually tactile or prehensile processes borne by animals and especially invertebrates chiefly on the head or about the mouth." .

obo:BTO_0001976 a rdfs:Class ;
  rdfs:label "Neuro-2a cell" ;
  rdfs:comment "Mus musculus (mouse) brain neuroblastoma cell line. Clone Neuro-2a was established by R.J. Klebe and F.H. Ruddle from a spontaneous tumor of a strain A albino mouse." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0005139 a rdfs:Class ;
  rdfs:label "HEp-3 cell" ;
  rdfs:comment "Human epidermoid-carcinoma cell line that expresses urokinase-type plasminogen activator u-PA and u-PAR." ;
  rdfs:subClassOf obo:BTO_0003894 .

obo:BTO_0001144 a rdfs:Class ;
  rdfs:label "chloronema" ;
  rdfs:comment "The primary photosynthetic part of the moss protonema, typically green, having numerous chloroplasts and consisting of short cells with perpendicular end walls." .

obo:BTO_0005924 a rdfs:Class ;
  rdfs:label "SNU-1066 cell" ;
  rdfs:comment "Human laryngeal squamous cell carcinoma cell line; established from Korean patients." ;
  rdfs:subClassOf obo:BTO_0005921 .

obo:BTO_0000754 a rdfs:Class ;
  rdfs:label "lewy body" ;
  rdfs:comment "Hyaline eosinophilic concentrically-laminated inclusions found in the substantia nigra and locus ceruleus of patients with Parkinsonism and Lewy body dementia." .

obo:BTO_0000429 a rdfs:Class ;
  rdfs:label "H69AR cell" ;
  rdfs:comment "Multidrug-resistant cell line, variant of H69." .

obo:BTO_0004216 a rdfs:Class ;
  rdfs:label "SJSA-1 cell" ;
  rdfs:comment "Human osteosarcoma cell line; established in 1982 from the primary tumor of a patient diagnosed with primitive multipotential sarcoma of the femur." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0000015 a rdfs:Class ;
  rdfs:label "culture condition:4-methylmuconolactone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006009 a rdfs:Class ;
  rdfs:label "SUNE-1 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0006436 a rdfs:Class ;
  rdfs:label "OC-315 cell" ;
  rdfs:comment "Three human cancer cell lines (OC 314, OC 315, and OC 316) were newly established in permanent culture from the ascites of patients with serous adenocarcinoma of the ovary. OC 315 was isolated from a neoplasm progressing after cisplatin-containing regimen." ;
  rdfs:subClassOf obo:BTO_0003804 .

obo:BTO_0004787 a rdfs:Class ;
  rdfs:label "SK-N-LO cell" ;
  rdfs:comment "Ewing's sarcoma family tumor cell line." ;
  rdfs:subClassOf obo:BTO_0004785 .

obo:BTO_0002002 a rdfs:Class ;
  rdfs:label "CCP-7 cell" ;
  rdfs:comment "Tartrate-resistant acid phosphatase (TRAP) and alkaline phosphatase (ALP) double-positive cell lines (CCP-2, CCP-7, CCP-8) from hamster bone marrow." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0003071 a rdfs:Class ;
  rdfs:label "HLEC-SRA 01/04 cell" ;
  rdfs:comment "Human lens epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0001874 .

obo:BTO_0004275 a rdfs:Class ;
  rdfs:label "SM-5 cell" ;
  rdfs:comment "Murine thymic lymphoma cell line; established from p53 deleted knockout mice." ;
  rdfs:subClassOf obo:BTO_0001377 .

obo:BTO_0001486 a rdfs:Class ;
  rdfs:label "skeletal system" ;
  rdfs:comment "The bodily system that consists of the bones, their associated cartilages, and the joints, and supports and protects the body, produces blood cells, and stores minerals." .

obo:BTO_0001410 a rdfs:Class ;
  rdfs:label "GH3 cell" ;
  rdfs:comment "Rat pituitary tumor, derived in 1965 from a pituitary tumor induced in a female Wistar/Furth rat following repeated transplantation with the MtT/W5 tumor (originally induced in a female F/Fu rat by cranial X-irradiation)." ;
  rdfs:subClassOf obo:BTO_0000756 .

obo:BTO_0004451 a rdfs:Class ;
  rdfs:label "LN-464 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003286 a rdfs:Class ;
  rdfs:label "PCI-35 cell" ;
  rdfs:comment "Human pancreatic cancer cell line; established from surgically resected, primary carcinoma tissue." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0003002 a rdfs:Class ;
  rdfs:label "endocervix" ;
  rdfs:comment "1. The mucous membrane lining the canal of the cervix uteri. 2. The region of the opening of the uterine cervix into the uterine cavity." .

obo:BTO_0003912 a rdfs:Class ;
  rdfs:label "IMCD cell" ;
  rdfs:comment "Renal inner medullary collecting duct (IMCD) cell line." ;
  rdfs:subClassOf obo:BTO_0001526 , obo:BTO_0002658 .

obo:BTO_0000388 a rdfs:Class ;
  rdfs:label "endodermis" ;
  rdfs:comment "The innermost tissue of the cortex in many roots and stems." .

obo:BTO_0005764 a rdfs:Class ;
  rdfs:label "culture condition:chitosan-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000869 a rdfs:Class ;
  rdfs:label "milk fat" ;
  rdfs:comment "The suspension in milk which tends to separate out as cream." .

obo:BTO_0003963 a rdfs:Class ;
  rdfs:label "nucleus solitarius" ;
  rdfs:comment "Gray matter located in the dorsomedial part of the medulla oblongata associated with the solitary tract. The solitary nucleus receives inputs from most organ systems including the terminations of the facial, glossopharyngeal, and vagus nerves. It is a major coordinator of autonomic nervous system regulation of cardiovascular, respiratory, gustatory, gastrointestinal, and chemoreceptive aspects of homeostasis. The solitary nucleus is also notable for the large number of neurotransmitters which are found therein." .

obo:BTO_0004728 a rdfs:Class ;
  rdfs:label "rheumatoid arthritis disease specific synovial fluid" .

obo:BTO_0004432 a rdfs:Class ;
  rdfs:label "HCAEC cell" ;
  rdfs:comment "Human coronary artery endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0004431 .

obo:BTO_0000076 a rdfs:Class ;
  rdfs:label "anterior midgut" .

obo:BTO_0003190 a rdfs:Class ;
  rdfs:label "SNU-354 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001390 a rdfs:Class ;
  rdfs:label "tracheal mucosa" ;
  rdfs:comment "The tracheal mucosa is columnar and ciliated. It is closely applied to the tracheal cartilages and to the interannular tissues between them. Mucous glands are liberally present." ;
  rdfs:subClassOf obo:BTO_0000973 .

obo:BTO_0002121 a rdfs:Class ;
  rdfs:label "pyloric stomach" ;
  rdfs:comment "The pyloric ceca (or digestive glands) and the cardiac stomach produce digestive enzymes in starfishes." ;
  rdfs:subClassOf obo:BTO_0001806 .

obo:BTO_0000831 a rdfs:Class ;
  rdfs:label "liver reticuloendothelial system" ;
  rdfs:subClassOf obo:BTO_0001174 .

obo:BTO_0004660 a rdfs:Class ;
  rdfs:label "human amniotic epithelial cell" ;
  rdfs:subClassOf obo:BTO_0001373 .

obo:BTO_0006096 a rdfs:Class ;
  rdfs:label "culture condition:benzene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001850 a rdfs:Class ;
  rdfs:label "portio vaginalis cervicis" ;
  rdfs:comment "Vaginal portion of cervix: the part of the cervix uteri that protrudes into the vagina and is lined with stratified squamous epithelium." .

obo:BTO_0004866 a rdfs:Class ;
  rdfs:label "LiM-6 cell" ;
  rdfs:comment "Human colon cancer cell line." .

obo:BTO_0001158 a rdfs:Class ;
  rdfs:label "rectum" ;
  rdfs:comment "The terminal part of the intestine from the sigmoid flexure to the anus." .

obo:BTO_0004801 a rdfs:Class ;
  rdfs:label "ML-DmBG3-c2 cell" ;
  rdfs:comment "Cell line from Drosophila larval central nervous system." ;
  rdfs:subClassOf obo:BTO_0000947 , obo:BTO_0002632 .

obo:BTO_0001565 a rdfs:Class ;
  rdfs:label "HT-29-MTX cell" ;
  rdfs:comment "A colon carcinoma cell line. A subpopulation derived from the HT-29 cell line containing cells committed to differentiation into mucin-secreting cells (HT-29 MTX)." .

obo:BTO_0002606 a rdfs:Class ;
  rdfs:label "glial cell" ;
  rdfs:comment "As glia they build the delicate network of branched cells and fibers that supports the tissue of the central nervous system." .

obo:BTO_0005840 a rdfs:Class ;
  rdfs:label "Hs888Lu cell" ;
  rdfs:comment "Normal human lung fibroblast cell line. The line was derived from normal tissue from a 20 years old male caucasian patient who had osteosarcoma metastatic to the lung." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0003638 a rdfs:Class ;
  rdfs:label "DOV-13 cell" ;
  rdfs:comment "Ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004920 a rdfs:Class ;
  rdfs:label "WSS-1 cell" ;
  rdfs:comment "This line was derived from the human embryonic kidney line 293, transfected with an expression plasmid containing cDNA encoding the rat GABA-A receptor alpha 1, beta 2 and gamma 2 subunits." .

obo:BTO_0005542 a rdfs:Class ;
  rdfs:label "inflorescence primordium" ;
  rdfs:comment "An inflorescence in its earliest recognizable stage of development." ;
  rdfs:subClassOf obo:BTO_0005525 .

obo:BTO_0000493 a rdfs:Class ;
  rdfs:label "gall bladder" ;
  rdfs:comment "A small, pear-shaped muscular sac, located under the right lobe of the liver, in which bile secreted by the liver is stored until needed by the body for digestion." ;
  rdfs:subClassOf obo:BTO_0000123 .

obo:BTO_0000625 a rdfs:Class ;
  rdfs:label "culture condition:D-xylose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000080 a rdfs:Class ;
  rdfs:label "male reproductive gland" ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0002595 a rdfs:Class ;
  rdfs:label "leiomyosarcoma cell line" ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0003159 a rdfs:Class ;
  rdfs:label "prostate gland smooth muscle" .

obo:BTO_0000736 a rdfs:Class ;
  rdfs:label "CCRF-CEM cell" ;
  rdfs:comment "Peripheral blood, T lymphoblast, acute lymphoblastic leukemia cell line. CCRF-CEM is a T lymphoblastoid cell line derived by G.E. Foley, et al. Cells were obtained in November, 1964 from peripheral blood buffy coat of a 4-year-old Caucasian female with acute lymphoblastic leukemia." ;
  rdfs:subClassOf obo:BTO_0002144 , obo:BTO_0002504 .

obo:BTO_0004268 a rdfs:Class ;
  rdfs:label "follicular dendritic cell line" .

obo:BTO_0004184 a rdfs:Class ;
  rdfs:label "OKM-2T cell" ;
  rdfs:comment "Human adult T-cell leukemia (ATL) cell line." ;
  rdfs:subClassOf obo:BTO_0004049 .

obo:BTO_0002273 a rdfs:Class ;
  rdfs:label "ileocecum" ;
  rdfs:comment "The ileum and cecum considered as one organ." .

obo:BTO_0004286 a rdfs:Class ;
  rdfs:label "basophilic leukemia cell" ;
  rdfs:comment "A rare type of leukemia in which basophils predominate; both acute and chronic varieties have been observed." ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0001611 a rdfs:Class ;
  rdfs:label "SW-1736 cell" ;
  rdfs:comment "Cell line derived from anaplastic thyroid carcinoma." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0005691 a rdfs:Class ;
  rdfs:label "RCC-4 cell" ;
  rdfs:comment "Renal cell carcinoma cell line stably transfected with an empty expression vector, pcDNA3, conferring neomycin resistance." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0001507 a rdfs:Class ;
  rdfs:label "pes anserinus" ;
  rdfs:comment "The combined tendinous insertion on the medial aspect of the tuberosity of the tibia of the sartorius, gracilis, and semitendinosus muscles." .

obo:BTO_0000117 a rdfs:Class ;
  rdfs:label "culture condition:benzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000671 a rdfs:Class ;
  rdfs:label "kidney" ;
  rdfs:comment "1: One of a pair of vertebrate organs situated in the body cavity near the spinal column that excrete waste products of metabolism, in humans are bean-shaped organs about 4 1/2 inches (11 1/2 centimeters) long lying behind the peritoneum in a mass of fatty tissue, and consist chiefly of nephrons by which urine is secreted, collected, and discharged into a main cavity whence it is conveyed by the ureter to the bladder. 2: Any of various excretory organs of invertebrate animals." ;
  rdfs:subClassOf obo:BTO_0000431 , obo:BTO_0001491 .

obo:BTO_0003674 a rdfs:Class ;
  rdfs:label "temporomandibular joint" ;
  rdfs:comment "The joint that connects the lower jaw to the skull." ;
  rdfs:subClassOf obo:BTO_0001686 .

obo:BTO_0006022 a rdfs:Class ;
  rdfs:label "NCI-H2172 cell" ;
  rdfs:comment "Human lung non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0001227 a rdfs:Class ;
  rdfs:label "seed coat" ;
  rdfs:comment "The outer layer of a seed that is developed from the integuments of the ovule." .

obo:BTO_0002442 a rdfs:Class ;
  rdfs:label "tetrad of microspores" ;
  rdfs:comment "A group of four cells, as of spores or pollen grains, formed by division of one mother cell." .

obo:BTO_0001881 a rdfs:Class ;
  rdfs:label "SW-626 cell" ;
  rdfs:comment "Human, ovary, adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0000495 a rdfs:Class ;
  rdfs:label "gametophyte" ;
  rdfs:comment "The individual or generation of a plant exhibiting alternation of generations that bears sex organs." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0005883 a rdfs:Class ;
  rdfs:label "UACC-3291 cell" ;
  rdfs:comment "Metastatic patient-derived human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000907 a rdfs:Class ;
  rdfs:label "myometrium" ;
  rdfs:comment "The smooth muscle coat of the uterus, which forms the main mass of the organ." ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0000597 a rdfs:Class ;
  rdfs:label "hepatopancreas" ;
  rdfs:comment "Digestive gland of crustaceans with functions approximately analogous to liver and pancreas of vertebrates - enzyme secretion, food absorption and storage." ;
  rdfs:subClassOf obo:BTO_0000345 .

obo:BTO_0006159 a rdfs:Class ;
  rdfs:label "rubrospinal tract" ;
  rdfs:comment "Spinal cord motor tract emanating from the red nucleus." .

obo:BTO_0002843 a rdfs:Class ;
  rdfs:label "breast fibroadenoma cell" ;
  rdfs:comment "A common benign (not malignant) tumor of the breast. Usually called simply a fibroadenoma." ;
  rdfs:subClassOf obo:BTO_0000150 , obo:BTO_0000676 .

obo:BTO_0002082 a rdfs:Class ;
  rdfs:label "subdural space" ;
  rdfs:comment "A narrow fluid-containing space, often only a potential space, between the dura mater and the arachnoid." .

obo:BTO_0001558 a rdfs:Class ;
  rdfs:label "somite" ;
  rdfs:comment "A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae." .

obo:BTO_0003790 a rdfs:Class ;
  rdfs:label "MR-Mel cell" ;
  rdfs:comment "Human melanoma cell line, deficient of mismatch repair genes MMR." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002567 a rdfs:Class ;
  rdfs:label "INER-51/PSC-1 cell" ;
  rdfs:comment "Clone of lung cancer cell line INER-51, non-expressing P-glycoprotein." ;
  rdfs:subClassOf obo:BTO_0002559 .

obo:BTO_0000638 a rdfs:Class ;
  rdfs:label "interrenal cell" ;
  rdfs:comment "Interrenal cells in elasmobranchs and bony fishes represent the equivalent of the mammalian adrenal cortex. The interrenal cells' appearance varies greatly in response to stress and reproduction. These cells produce corticosteroids with cortisol being the most quantitatively important." .

obo:BTO_0002097 a rdfs:Class ;
  rdfs:label "pharyngeal cavity" ;
  rdfs:comment "The space enclosed by the walls of the pharynx." .

obo:BTO_0002359 a rdfs:Class ;
  rdfs:label "intermediate cuneiform bone" ;
  rdfs:comment "The intermediate and smallest of the three wedge-shaped tarsal bones located medial to the cuboid and between the navicular and the first three metatarsal bones; called also o. cuneiforme secundum." ;
  rdfs:subClassOf obo:BTO_0002343 .

obo:BTO_0002065 a rdfs:Class ;
  rdfs:label "venom apparatus" ;
  rdfs:comment "The traumagenic device (spine, tooth, etc.), Venom gland, and accessory organs directly concerned with the introduction and transmission of a venom." .

obo:BTO_0004058 a rdfs:Class ;
  rdfs:label "C3H10T1/2 cell" ;
  rdfs:comment "Mouse embryonic mesenchymal stem cell line." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0004639 a rdfs:Class ;
  rdfs:label "TT2 ES cell" ;
  rdfs:comment "Murine embryonic stem cell line; established from an F1 embryo between a C57BL/6 female and a CBA male." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0002413 a rdfs:Class ;
  rdfs:label "PG-BE1 cell" ;
  rdfs:comment "Cloned PG cell subline." .

obo:BTO_0002832 a rdfs:Class ;
  rdfs:label "PEA-13 cell" ;
  rdfs:comment "Mouse embryonic fibroblast cell line. The cell line PEA-13 is homozygous for a disruption of the gene for low density lipoprotein receptor-related protein (LRP). PEA-13 was derived from fibroblasts from day 15 C57BL/6x129 F1 hybrid mouse embryos." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0004707 a rdfs:Class ;
  rdfs:label "hinge joint" ;
  rdfs:comment "A joint that allows motion around an axis." ;
  rdfs:subClassOf obo:BTO_0001686 .

obo:BTO_0003374 a rdfs:Class ;
  rdfs:label "antheridium" ;
  rdfs:comment "An organ in certain organisms that produces male gametes. Antheridia are found in many groups of organisms, including the bryophytes, ferns, ascomycete fungi, and some algae." ;
  rdfs:subClassOf obo:BTO_0003373 .

obo:BTO_0004931 a rdfs:Class ;
  rdfs:label "NPD-1 cell" ;
  rdfs:comment "Niemann-Pick type A dermal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0003822 a rdfs:Class ;
  rdfs:label "culture condition:maltose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003883 a rdfs:Class ;
  rdfs:label "pancreatic ductal adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001521 , obo:BTO_0002363 .

obo:BTO_0004616 a rdfs:Class ;
  rdfs:label "stria terminalis" ;
  rdfs:comment "A bundle of nerve fibers that passes from the amygdala along the demarcation between the thalamus and caudate nucleus mostly to the anterior part of the hypothalamus with a few fibers crossing the anterior commissure to the amygdala on the opposite side." .

obo:BTO_0002266 a rdfs:Class ;
  rdfs:label "honey sac" ;
  rdfs:comment "A distension of the esophagus of a bee in which honey is elaborated." .

obo:BTO_0003543 a rdfs:Class ;
  rdfs:label "L-02 cell" ;
  rdfs:comment "Human liver cell line." .

obo:BTO_0004812 a rdfs:Class ;
  rdfs:label "dermal dendritic cell" ;
  rdfs:comment "A key cell type of the resident skin immune system is the dendritic cell, which in normal skin is located in two distinct microanatomical compartments: Langerhans cells (LC) mainly in the epidermis and dermal dendritic cells (DDC) in the dermis." .

obo:BTO_0005815 a rdfs:Class ;
  rdfs:label "A-375.S2 cell" ;
  rdfs:comment "Skin malignant melanoma cell line. This line was cloned by limiting dilution from the A375 melanoma cell line." .

obo:BTO_0004018 a rdfs:Class ;
  rdfs:label "HCTK-1 cell" ;
  rdfs:comment "Human tongue squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0004190 a rdfs:Class ;
  rdfs:label "pacemaker cell" ;
  rdfs:comment "A group of cells or a body part (as the sinus node of the heart) that serves to establish and maintain a rhythmic activity." .

obo:BTO_0000983 a rdfs:Class ;
  rdfs:label "culture condition:p-toluate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004472 a rdfs:Class ;
  rdfs:label "mantle cell lymphoma cell" ;
  rdfs:comment "Mantle cell lymphoma is one of the rarest of the non-Hodgkin's lymphomas, comprising about 6% of NHL cases. It is a subtype of B-cell lymphoma, due to CD5 positive antigen-naive pregerminal center B-cell within the mantle zone that surrounds normal germinal center follicles." ;
  rdfs:subClassOf obo:BTO_0002904 .

obo:BTO_0003297 a rdfs:Class ;
  rdfs:label "NCTC-2544 cell" ;
  rdfs:comment "Human skin keratinocyte cell line." .

obo:BTO_0002334 a rdfs:Class ;
  rdfs:label "retinal pigment epithelium cell line" .

obo:BTO_0004082 a rdfs:Class ;
  rdfs:label "HCC-827 cell" ;
  rdfs:comment "Non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0003743 a rdfs:Class ;
  rdfs:label "SW-872 cell" ;
  rdfs:comment "The SW 872 cell line was initiated in 1974 surgical specimen of a fibrosarcoma removed from a 36 year old male Caucasian. The histopathology evaluation reported an undifferentiated malignant tumor consistent with liposarcoma." ;
  rdfs:subClassOf obo:BTO_0003744 .

obo:BTO_0005451 a rdfs:Class ;
  rdfs:label "C32-TG cell" ;
  rdfs:comment "Human amelanotic melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0002171 .

obo:BTO_0001039 a rdfs:Class ;
  rdfs:label "peritubular cell" ;
  rdfs:comment "Seminiferous tubules are made up of Sertoli cells and germ cells and they are surrounded by peritubular and myoid cells." .

obo:BTO_0004775 a rdfs:Class ;
  rdfs:label "SUP-M2 cell" ;
  rdfs:comment "Human anaplastic large cell lymphoma (ALCL) cell line; derived from the cerebrospinal fluid of a 5-year-old girl with refractory malignant histiocytosis." ;
  rdfs:subClassOf obo:BTO_0004868 .

obo:BTO_0002521 a rdfs:Class ;
  rdfs:label "diffuse large B-cell lymphoma cell" ;
  rdfs:comment "Diffuse large B-cell lymphoma is a common type of non-Hodgkin lymphoma (NHL) accounting for about 2 in 5 of all cases. It is a cancer of the B-lymphocytes. Diffuse B-cell lymphoma can occur at any time between adolescence and old age. It is slightly more common in men than in women." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0001998 a rdfs:Class ;
  rdfs:label "HMCB cell" ;
  rdfs:comment "Human bowes melanoma cell line of the skin." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005226 a rdfs:Class ;
  rdfs:label "medial pterygoid muscle" ;
  rdfs:comment "A thick, quadrilateral muscle of mastication. The mandibular branch of the fifth cranial nerve, the trigeminal nerve, innervates the medial pterygoid muscle." ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0003106 a rdfs:Class ;
  rdfs:label "HOM-2 cell" ;
  rdfs:comment "B-lymphoblastoid cell line from the 1987 New York HLA workshop." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0003267 a rdfs:Class ;
  rdfs:label "HS-766T cell" ;
  rdfs:comment "Human pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0001298 a rdfs:Class ;
  rdfs:label "basal cell carcinoma cell" ;
  rdfs:comment "Basal cell carcinoma is the most common form of skin cancer and accounts for more than 90 percent of all skin cancer in the U.S. These cancers almost never spread (metastasize) to other parts of the body. They can, however, cause damage by growing and invading surrounding tissue." ;
  rdfs:subClassOf obo:BTO_0001286 .

obo:BTO_0003324 a rdfs:Class ;
  rdfs:label "cardiomyocyte cell line" ;
  rdfs:subClassOf obo:BTO_0003265 .

obo:BTO_0001122 a rdfs:Class ;
  rdfs:label "procyclic form" ;
  rdfs:comment "African trypanosomes have a digenetic life cycle, which includes growth in the bloodstream and tissue spaces of a mammalian host and several distinct developmental stages, including the procyclic form, in an insect host, Glossina spp., tsetse fly." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0005750 a rdfs:Class ;
  rdfs:label "dentate granule cell" ;
  rdfs:comment "The principal cell type of the dentate gyrus is the dentate granule cell. The granule cells are tightly packed in the granular cell layer of the dentate gyrus." .

obo:BTO_0005263 a rdfs:Class ;
  rdfs:label "HER 14 cell" ;
  rdfs:comment "HER 14 cells are NIH 3T3 fibroblasts devoid of endogenous EGF-R, transfected with the human EGF-R cDNA." .

obo:BTO_0001892 a rdfs:Class ;
  rdfs:label "RKO-AS-45-1 cell" ;
  rdfs:comment "The RKO-AS45-1 cell line was generated from the colon carcinoma RKO cell line by transfection with the open reading frame portions of human cDNAs for GADD45 cloned into the expression vector pCMV." .

obo:BTO_0000314 a rdfs:Class ;
  rdfs:label "neuroepithelium" ;
  rdfs:comment "1: Simple columnar epithelium made up of cells specialized to serve as sensory cells for the reception of external stimuli, as the sensory cells of the cochlea, vestibule, nasal mucosa, and tongue. 2: The epithelium of the ectoderm, from which the central nervous system is developed." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0006449 a rdfs:Class ;
  rdfs:label "F-184 cell" ;
  rdfs:comment "Human normal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0005400 a rdfs:Class ;
  rdfs:label "BPH cell" ;
  rdfs:comment "Human benign prostatic hyperplasia cell." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0000130 a rdfs:Class ;
  rdfs:label "neutrophil" ;
  rdfs:comment "A granulocyte that is the chief phagocytic white blood cell of the blood." ;
  rdfs:subClassOf obo:BTO_0000539 , obo:BTO_0001044 .

obo:BTO_0003526 a rdfs:Class ;
  rdfs:label "MFBY2 cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0004031 a rdfs:Class ;
  rdfs:label "95-H12 cell" ;
  rdfs:comment "Low metastatic macrophage fusion hybrid cell line; established from a preparation of mouse peritoneal macrophages from syngenic DBA/2J mice, and fusion with the G418-resistant Cloudman S91 cell line, PS1- HGPRT-1 (also referred to as 6neo)." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0001763 a rdfs:Class ;
  rdfs:label "neural arch" ;
  rdfs:comment "One of the cartilaginous structures surrounding the embryonic spinal cord, formed by the dorsal growth of the dorsolateral arcualia; it is the primordium of the vertebral arch." .

obo:BTO_0002584 a rdfs:Class ;
  rdfs:label "WRL-68 cell" ;
  rdfs:comment "Hela cells containing human papilloma viral (HPV) DNA sequences." .

obo:BTO_0000725 a rdfs:Class ;
  rdfs:label "hematopoietic stem cell" ;
  rdfs:comment "A blood cell progenitor or mother cell representing a slightly later stage than the blast cell; it has the capacity for both replication and differentiation, and has pluripotentiality, giving rise to precursors of various different blood cell lines, such as the proerythrocyte and myeloblast, which cannot self-replicate and must differentiate into more mature daughter cells." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0003163 a rdfs:Class ;
  rdfs:label "prostatic urethra" ;
  rdfs:comment "The prostatic part of the male urethra, about 2.5 cm in length, that traverses the prostate; it includes the seminal colliculus, and the ejaculatory and prostatic ducts open into it." ;
  rdfs:subClassOf obo:BTO_0003096 .

obo:BTO_0003753 a rdfs:Class ;
  rdfs:label "central medial thalamic nucleus" ;
  rdfs:comment "Cell groups within the internal medullary lamina of the thalamus. They include a rostral division comprising the paracentral, central lateral, central dorsal, and central medial nuclei, and a caudal division composed of the centromedian and parafascicular nuclei." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0003894 a rdfs:Class ;
  rdfs:label "skin carcinoma cell line" .

obo:BTO_0005930 a rdfs:Class ;
  rdfs:label "C3H10T1/2 clone 8 cell" ;
  rdfs:comment "Mus musculus embryo sarcoma cell line; isolated in 1972 from a line of C3H mouse embryo cells. Subline of C3H10T1/2 cell line." .

obo:BTO_0004696 a rdfs:Class ;
  rdfs:label "external carotid artery" ;
  rdfs:comment "In human anatomy, the external carotid artery is a major artery of the head and neck. It arises from the common carotid artery when it bifurcates into the external and internal carotid artery." .

obo:BTO_0000972 a rdfs:Class ;
  rdfs:label "HEP-3B cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line, established from the tumor tissue of an 8-year-old black boy in 1976." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0003454 a rdfs:Class ;
  rdfs:label "eosinophilic myelocyte" ;
  rdfs:comment "Myelocytes are further distinguished according to the type of granules that develop, i.e., neutrophilic myelocyte (60%), eosinophilic myelocyte, basophilic myelocyte (3%)." ;
  rdfs:subClassOf obo:BTO_0000734 .

obo:BTO_0004316 a rdfs:Class ;
  rdfs:label "NBT-II cell" ;
  rdfs:comment "Rat Wistar urinary bladder cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0002819 a rdfs:Class ;
  rdfs:label "decidua basalis" ;
  rdfs:comment "The area of endometrium between the implanted chorionic vesicle and the myometrium, which develops into the maternal part of the placenta." .

obo:BTO_0003509 a rdfs:Class ;
  rdfs:label "headfoot" ;
  rdfs:comment "The head-foot is the part you see most easily in slugs and snails. It is mostly a muscular organ covered in cilia and rich in mucous cells, which the mollusc uses to move around, it normally tapers to a tail at one end and has a head incorporated in the front. The head includes a mouth, eyes and tentacles, the last two may be much reduced or even absent. In those species with shells the head-foot can be drawn into the shell." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0003979 a rdfs:Class ;
  rdfs:label "Brodmann area 26" ;
  rdfs:comment "In the human this area is called ectosplenial area 26. It is a cytoarchitecturally defined portion of the retrosplenial region of the cerebral cortex. It is a narrow band located in the isthmus of cingulate gyrus adjacent to the fasciolar gyrus internally. It is bounded externally by the granular retrolimbic area 29." .

obo:BTO_0001674 a rdfs:Class ;
  rdfs:label "Mel Im cell" ;
  rdfs:comment "Melanoma cell line derived from metastases of primary tumors." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000354 a rdfs:Class ;
  rdfs:label "DON cell" ;
  rdfs:comment "Lung cell line, established from a 8-months-old male of Cricetulus griseus (hamster, Chinese)." ;
  rdfs:subClassOf obo:BTO_0000353 .

obo:BTO_0005784 a rdfs:Class ;
  rdfs:label "syncytium" ;
  rdfs:comment "A multinucleate mass of protoplasm produced by the merging of cells." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0002671 a rdfs:Class ;
  rdfs:label "ventral principal nucleus of medial geniculate body" ;
  rdfs:comment "The principal relay nucleus of the medial geniculate nuclei, receiving ascending auditory fibers from the inferior colliculus and relaying information on sound intensity and frequency and its binaural properties to the auditory cortex." .

obo:BTO_0003487 a rdfs:Class ;
  rdfs:label "visceral endoderm" ;
  rdfs:comment "Visceral endoderm, a population of extraembyonic endoderm, is an extraembryonic tissue that functions in a regulatory capacity but does not contribute directly to the formation of any adult organs." ;
  rdfs:subClassOf obo:BTO_0003360 .

obo:BTO_0001060 a rdfs:Class ;
  rdfs:label "photoreceptor cell" ;
  rdfs:comment "A specialized cell type in a multicellular organism that is sensitive to light. This definition excludes single-celled organisms, but includes non-eye receptors, such as snake infra-red detectors or photosensitive pineal gland cells." .

obo:BTO_0003222 a rdfs:Class ;
  rdfs:label "respiratory bronchiole" ;
  rdfs:comment "The final branch of a bronchiole, communicating directly with the alveolar ducts, a subdivision of a terminal bronchiole, it has alveolar outcroppings and itself divides into several alveolar ducts." .

obo:BTO_0005500 a rdfs:Class ;
  rdfs:label "QGP-1 cell" ;
  rdfs:comment "Human pancreatic neuroendocrine tumor cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0004569 a rdfs:Class ;
  rdfs:label "ovarian fluid" ;
  rdfs:comment "The ovarian fluid surrounds eggs from female fish." .

obo:RO_0001018 a rdf:Property ;
  rdfs:label "contained in" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0005704 a rdfs:Class ;
  rdfs:label "milk gland" ;
  rdfs:comment "Larval nutrition is provided via a modified accessory gland, a milk gland, that empties into the uterus. The milk gland is connected to the dorsal side of the uterus and expands throughout the abdominal cavity of the fly as bifurcating tubules intertwining with fat body tissue. The lumen of the milk gland is surrounded by secretory and epithelial cells." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0004819 a rdfs:Class ;
  rdfs:label "FOM78 cell" ;
  rdfs:comment "Human primary melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0000075 a rdfs:Class ;
  rdfs:label "antennal gland" ;
  rdfs:comment "Excretory gland situated in the basal article of the antennal peduncle." ;
  rdfs:subClassOf obo:BTO_0000431 .

obo:BTO_0006114 a rdfs:Class ;
  rdfs:label "MEL-C19 cell" ;
  rdfs:comment "The C19 MEL cell line is a thymidine kinase negative subclone of the 745 murine erythroleukemia cell line." .

obo:BTO_0001644 a rdfs:Class ;
  rdfs:label "vascular bud" ;
  rdfs:comment "An outgrowth of an existing vessel from which a new blood vessel arises." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0000943 a rdfs:Class ;
  rdfs:label "culture condition:nicotinic acid-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005585 a rdfs:Class ;
  rdfs:label "prepolar cell" ;
  rdfs:comment "During Drosophila oogenesis somatic stem cells give rise to precursor follicle cells and about 16 of them invade between adjoining cysts, cease division, and become pre-polar cells, which ultimately become polar cells and stalk cells." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0002374 a rdfs:Class ;
  rdfs:label "anaplastic astrocytoma cell" ;
  rdfs:comment "Moderately malignant astrocytomas, including most anaplastic astrocytomas and sometimes including the less malignant of the glioblastoma multiforme group." ;
  rdfs:subClassOf obo:BTO_0000100 .

obo:BTO_0005050 a rdfs:Class ;
  rdfs:label "MDA-PCa-2b cell" ;
  rdfs:comment "Cell line, established from a metastasis of 63 year old Black male with androgen-independent adenocarcinoma of the prostate." ;
  rdfs:subClassOf obo:BTO_0005049 .

obo:BTO_0000726 a rdfs:Class ;
  rdfs:label "RPMI-8226 cell" ;
  rdfs:comment "Human multiple myeloma cell line; established from the peripheral blood of a 61-year-old man with multiple myeloma (IgG lambda-type) at diagnosis in 1966; described to produce and secrete only lambda light chains (but not heavy chains)." ;
  rdfs:subClassOf obo:BTO_0000727 , obo:BTO_0000849 .

obo:BTO_0000534 a rdfs:Class ;
  rdfs:label "gonad" ;
  rdfs:comment "A mixed gland that produces the gametes (sex cells) and sex hormones of an organism. In the female of the species the reproductive cells are the egg cells, and in the male the reproductive cells are the sperm. The male gonad, the testicle, produces sperm in the form of spermatozoa. The female gonad, the ovary, produces egg cells. Both of these gametes, are haploid germ cells." ;
  rdfs:subClassOf obo:BTO_0000080 , obo:BTO_0000254 .

obo:BTO_0002967 a rdfs:Class ;
  rdfs:label "SK-MEL-37 cell" ;
  rdfs:comment "Human cell line established from a metastatic melanoma." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0004023 a rdfs:Class ;
  rdfs:label "UM-SCC-5 cell" ;
  rdfs:comment "Human supraglottic larynx squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004019 .

obo:BTO_0005010 a rdfs:Class ;
  rdfs:label "meningothelial meningioma cell" ;
  rdfs:comment "The most common type of syncytial meningioma, usually benign and lacking papillary whorls and psammoma bodies." ;
  rdfs:subClassOf obo:BTO_0001756 .

obo:BTO_0006214 a rdfs:Class ;
  rdfs:label "KIJ-265T cell" ;
  rdfs:comment "Clear cell renal cell carcinoma cell line, derived from primary tumor site stage 4 human ccRCC patient tissue." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0005005 a rdfs:Class ;
  rdfs:label "FEPD cell" ;
  rdfs:comment "Anaplastic large cell lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0004868 .

obo:BTO_0003319 a rdfs:Class ;
  rdfs:label "Hepa-1 cell" ;
  rdfs:comment "Murine hepatoma cell line. The Hepa-1 cell line was originally derived from a transplantable tumor carried in C57 leaden/J mice." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006484 a rdfs:Class ;
  rdfs:label "HMT-3522 S1 cell" ;
  rdfs:comment """Human Caucasian breast epithelial
cell line is a subline that has been derived from HMT-3522.""" .

obo:BTO_0001510 a rdfs:Class ;
  rdfs:label "rectal cell line" .

obo:BTO_0001780 a rdfs:Class ;
  rdfs:label "oxyntic cell" ;
  rdfs:comment "Cells of the gastric glands which secrete hydrochloric acid and intrinsic factor." .

obo:BTO_0002493 a rdfs:Class ;
  rdfs:label "CH12.LX cell" ;
  rdfs:comment "The CH12.LX B cell line derived from the murine CH12 B cell lymphoma." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0002851 a rdfs:Class ;
  rdfs:label "theca interna" ;
  rdfs:comment "Internal coat of theca folliculi: the inner, vascular layer of secretory cells of the theca folliculi." .

obo:BTO_0002214 a rdfs:Class ;
  rdfs:label "A-1235 cell" ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003033 a rdfs:Class ;
  rdfs:label "HEK-293H cell" ;
  rdfs:comment "293-H cell line is derived from 293 cell line." .

obo:BTO_0005845 a rdfs:Class ;
  rdfs:label "HVEC cell" ;
  rdfs:comment "Human vaginal epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0005844 .

obo:BTO_0002558 a rdfs:Class ;
  rdfs:label "INER-37 cell" ;
  rdfs:comment "Human non-small-cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002138 a rdfs:Class ;
  rdfs:label "MiaPaCa cell" ;
  rdfs:comment "Human pancreatic carcinoma cell line." .

obo:BTO_0003627 a rdfs:Class ;
  rdfs:label "annulus fibrosus" ;
  rdfs:comment "A ring of fibrous or fibrocartilaginous tissue (as of an intervertebral disk or surrounding an orifice of the heart)." ;
  rdfs:subClassOf obo:BTO_0000206 .

obo:BTO_0005364 a rdfs:Class ;
  rdfs:label "D-54MG cell" ;
  rdfs:comment "Human glioma cell line." .

obo:BTO_0003110 a rdfs:Class ;
  rdfs:label "CALO cell" ;
  rdfs:comment "HPV18 positive human uterine cervix carcinoma cell line; established from stage IIB squamous cell cervical carcinoma explants from Mexican female at the National University of Mexico." ;
  rdfs:subClassOf obo:BTO_0001967 .

obo:BTO_0003952 a rdfs:Class ;
  rdfs:label "mesenchymal stromal cell" ;
  rdfs:comment "Fibroblast-like cells that can be isolated from a variety of tissues, such as bone marrow, periosteum, trabecular bone, adipose tissue, synovium, skeletal muscle, dental pulp." ;
  rdfs:subClassOf obo:BTO_0002064 .

obo:BTO_0000269 a rdfs:Class ;
  rdfs:label "colon" ;
  rdfs:comment "The part of the large intestine that extends from the cecum to the rectum." .

obo:BTO_0004991 a rdfs:Class ;
  rdfs:label "UM-UC-14 cell" ;
  rdfs:comment "Human transitional cell carcinoma of the renal pelvis." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0006062 a rdfs:Class ;
  rdfs:label "WA-09 cell" ;
  rdfs:comment "Human embryonic stem cell line from a male; established from human blastocysts." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0002639 a rdfs:Class ;
  rdfs:label "NS20Y cell" ;
  rdfs:comment "Mouse neuroblastoma cell line established from a A/Jax mouse strain with neuroblastoma C1300. Cells were described to be aneuploid and to contain high specific activity of choline acetyltransferase." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0005045 a rdfs:Class ;
  rdfs:label "LNCaP-34 cell" ;
  rdfs:comment "Mouse orthotopic prostate cancer model with hepsin-overexpressing cells." .

obo:BTO_0006079 a rdfs:Class ;
  rdfs:label "hPSC cell" ;
  rdfs:comment "Human pluripotent stem cell. Includes human embryonic stem cells and human induced pluripotent stem cells. It can self-renew indefinitely in culture while maintaining the ability to become almost any cell type in the human body." ;
  rdfs:subClassOf obo:BTO_0006078 .

obo:BTO_0000892 a rdfs:Class ;
  rdfs:label "mycobiont" ;
  rdfs:comment "The fungal component of the lichen partnership, absorbing nutrients and providing structural support for the plant." ;
  rdfs:subClassOf obo:BTO_0001494 .

obo:BTO_0003143 a rdfs:Class ;
  rdfs:label "coculture" ;
  rdfs:comment "Growth of distinct cell types in a combined culture. In order to get some cells to grow at low (clonal) density it is sometimes helpful to grow them together with a feeder layer of macrophages or irradiated cells. The mixing of different cell types in culture is otherwise normally avoided, although it is possible that this could prove an informative approach to modelling interactions in vivo." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0004899 a rdfs:Class ;
  rdfs:label "HK-1 cell" ;
  rdfs:comment "EBV-negative nasopharyngeal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0001133 a rdfs:Class ;
  rdfs:label "pre-B-lymphocyte" ;
  rdfs:subClassOf obo:BTO_0003104 .

obo:BTO_0003599 a rdfs:Class ;
  rdfs:label "HLMVEC cell" ;
  rdfs:comment "Human lung microvascular endothelial cell, primary cell culture." ;
  rdfs:subClassOf obo:BTO_0005738 .

obo:BTO_0003688 a rdfs:Class ;
  rdfs:label "serous acinar cell" ;
  rdfs:subClassOf obo:BTO_0000433 , obo:BTO_0003687 .

obo:BTO_0003939 a rdfs:Class ;
  rdfs:label "luteal cell" ;
  rdfs:comment "A cell of the corpus luteum of the ovary." .

obo:BTO_0004936 a rdfs:Class ;
  rdfs:label "NALM-26 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0003667 a rdfs:Class ;
  rdfs:label "inner hair cell" ;
  rdfs:comment "Any of approximately 3,500 hair cells, situated in the organ of Corti, specialized as transducers of sound waves into nerve impulses and believed to encode information about the frequency of sound. So called because they are further from the outside of the cochlea than are the outer hair cells." .

obo:BTO_0000361 a rdfs:Class ;
  rdfs:label "stratum granulosum" ;
  rdfs:comment "A layer of granular cells lying immediately above the stratum germinativum in most parts of the epidermis." .

obo:BTO_0002518 a rdfs:Class ;
  rdfs:label "FL-18 cell" ;
  rdfs:comment "Cell line established from the pleural effusion of a patient with follicular small cleaved cell lymphoma." ;
  rdfs:subClassOf obo:BTO_0002517 .

obo:BTO_0003570 a rdfs:Class ;
  rdfs:label "feather bud" ;
  rdfs:comment "Within chick embryos, interactions between the epidermis and dermis of the skin result in the formation of preliminary feather buds. Feather buds are forming the basis from which feathers will be formed." .

obo:BTO_0005237 a rdfs:Class ;
  rdfs:label "culture condition:sulfolactate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003082 a rdfs:Class ;
  rdfs:label "uterine epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0002450 a rdfs:Class ;
  rdfs:label "anterior hypothalamic nucleus" ;
  rdfs:comment "A nucleus of nerve cells in the anterior hypothalamic region." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0002482 a rdfs:Class ;
  rdfs:label "gonadotrophic cell" ;
  rdfs:comment "A basophil of the adenohypophysis whose granules secrete follicle-stimulating hormone and luteinizing hormone. Called also delta basophil, delta cell, and gonadotrope or gonadotropic cell." ;
  rdfs:subClassOf obo:BTO_0000129 .

obo:BTO_0003047 a rdfs:Class ;
  rdfs:label "neurilemoma cell" ;
  rdfs:comment "A tumor of a neurilemma, the most common type of neurogenic tumor, usually isolated and encapsulated. Most are benign but occasionally they become malignant." ;
  rdfs:subClassOf obo:BTO_0003045 .

obo:BTO_0002420 a rdfs:Class ;
  rdfs:label "monocytic leukemia cell" ;
  rdfs:comment "A cell of leukemia characterized by the proliferation of monocytes and monoblasts in the blood." ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0000912 a rdfs:Class ;
  rdfs:label "nasal mucosa" ;
  rdfs:comment "The mucosa, or mucous membrane, is a type of tissue that lines the nasal cavity. Mucous membranes are usually moist tissues that are bathed by secretions such as in the nose." ;
  rdfs:subClassOf obo:BTO_0000419 , obo:BTO_0000973 .

obo:BTO_0004047 a rdfs:Class ;
  rdfs:label "apical hook" ;
  rdfs:comment "Hook-like structure which develops at the apical part of the hypocotyl in dark-grown seedlings in dicots." .

obo:BTO_0000106 a rdfs:Class ;
  rdfs:label "cranial ganglion" ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0004122 a rdfs:Class ;
  rdfs:label "bone marrow stromal cell" ;
  rdfs:subClassOf obo:BTO_0002064 .

obo:BTO_0000065 a rdfs:Class ;
  rdfs:label "amnion" ;
  rdfs:comment "A thin, tough, membranous sac that encloses the embryo or fetus of a mammal, bird, or reptile. It is filled with a serous fluid in which the embryo is suspended." ;
  rdfs:subClassOf obo:BTO_0000473 .

obo:BTO_0003065 a rdfs:Class ;
  rdfs:label "VA13-TS4 cell" ;
  rdfs:comment "Human fibroblast cell line stably transfected with ADAMTS4." .

obo:BTO_0000400 a rdfs:Class ;
  rdfs:label "sarcoma cell line" .

obo:BTO_0000157 a rdfs:Class ;
  rdfs:label "aorta thoracica" ;
  rdfs:comment "Thoracic part of aorta: the proximal portion of the descending aorta, which proceeds from the arch of the aorta and gives rise to the bronchial, esophageal, pericardiac, and mediastinal branches, and the superior phrenic, posterior intercostal III to XI, and subcostal arteries; it is continuous through the diaphragm with the abdominal aorta." ;
  rdfs:subClassOf obo:BTO_0000135 .

obo:BTO_0004552 a rdfs:Class ;
  rdfs:label "Barrett's epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0002817 .

obo:BTO_0001071 a rdfs:Class ;
  rdfs:label "pith" ;
  rdfs:comment "A usually continuous central strand of spongy tissue in the stems of most vascular plants that probably functions chiefly in storage." .

obo:BTO_0006011 a rdfs:Class ;
  rdfs:label "6-10B cell" ;
  rdfs:comment "Tumorigenic and non-metastatic subline of SUNE-1 cell line." .

obo:BTO_0001407 a rdfs:Class ;
  rdfs:label "neuroendocrine tumor cell" ;
  rdfs:comment "A cell of any of a diverse group of tumors containing neurosecretory cells that cause endocrine dysfunction, most are carcinoids or carcinomas. They occur most often in the gastrointestinal tract, in bronchial and tracheal mucous membranes, and in teratoid ovarian tumors." ;
  rdfs:subClassOf obo:BTO_0000729 .

obo:BTO_0004159 a rdfs:Class ;
  rdfs:label "Ma-53 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line; established from tissue or pleural effusion of Japanese patients with advanced NSCLC." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004379 a rdfs:Class ;
  rdfs:label "parahippocampal region" ;
  rdfs:comment "It is located in the limbic lobe. Recent research has found neurons here that are responsive to landmarks." .

obo:BTO_0001831 a rdfs:Class ;
  rdfs:label "thoracic ganglion" ;
  rdfs:comment "Any of the ganglia of the sympathetic chain in the thoracic region that occur in 12 or fewer pairs." ;
  rdfs:subClassOf obo:BTO_0001333 .

obo:BTO_0003327 a rdfs:Class ;
  rdfs:label "FL83B cell" ;
  rdfs:comment "Mouse liver cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0006421 a rdfs:Class ;
  rdfs:label "KPD cell" ;
  rdfs:comment "Human osteosarcoma cell line from femur, established from primary patient samples at the Norwegian Radium Hospital." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0005043 a rdfs:Class ;
  rdfs:label "M1 melanoma cell" ;
  rdfs:comment "Human melanoma cell line." .

obo:BTO_0005970 a rdfs:Class ;
  rdfs:label "MCF-7/LCC9 cell" ;
  rdfs:comment "An antiestrogen-resistant MCF-7 variant ." ;
  rdfs:subClassOf obo:BTO_0000093 .

obo:BTO_0006169 a rdfs:Class ;
  rdfs:label "nucleus preopticus periventricularis" ;
  rdfs:comment "A nucleus of nerve cells in the preoptic area of the basal forebrain." ;
  rdfs:subClassOf obo:BTO_0003664 .

obo:BTO_0005683 a rdfs:Class ;
  rdfs:label "VK-2/E6E7 cell" ;
  rdfs:comment "The vaginal epithelial cell line VK-2/E6E7 was derived from epithelial cells of vaginal mucosal tissue from a 32-years-old premenopausal woman undergoing anterior-posterior repair and was demonstrated to have structural and functional properties similar to those of their parental primary cells." ;
  rdfs:subClassOf obo:BTO_0002936 .

obo:BTO_0003872 a rdfs:Class ;
  rdfs:label "foam cell" ;
  rdfs:comment "A swollen vacuolated phagocytic cell filled with lipid inclusions that often accummulates along arterial walls and is characteristic of some conditions of disturbed lipid metabolism." ;
  rdfs:subClassOf obo:BTO_0001044 .

obo:BTO_0001346 a rdfs:Class ;
  rdfs:label "tachyzoite" ;
  rdfs:comment "Oval, quickly multiplying trophozoite of Toxoplasma gondii, found in all tissues except non-nucleated erythrocytes during the acute stage of toxoplasmosis." ;
  rdfs:subClassOf obo:BTO_0001397 .

obo:BTO_0006051 a rdfs:Class ;
  rdfs:label "pharyngeal arch cartilage" ;
  rdfs:comment "A cartilage bar in the mandibular arch that forms a temporary supporting structure in the embryonic mandible." .

obo:BTO_0005083 a rdfs:Class ;
  rdfs:label "plant mucous cell" .

obo:BTO_0005801 a rdfs:Class ;
  rdfs:label "K-562/CP cell" ;
  rdfs:comment "Cisplatin resistant subline of K-562 leukemia cell line." .

obo:BTO_0005642 a rdfs:Class ;
  rdfs:label "culture condition:3-hydroxyphenylacetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002578 a rdfs:Class ;
  rdfs:label "feather barbs" ;
  rdfs:comment "The numerous branches off the rachis that form the vanes." .

obo:BTO_0002500 a rdfs:Class ;
  rdfs:label "arachnoid trabecula" ;
  rdfs:comment "Delicate fibrous threads connecting the inner surface of the arachnoid to the pia mater." ;
  rdfs:subClassOf obo:BTO_0002501 .

obo:BTO_0000300 a rdfs:Class ;
  rdfs:label "cotyledon" ;
  rdfs:comment "A seed leaf; the first leaf formed in a seed." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003515 a rdfs:Class ;
  rdfs:label "LX-1 cell" ;
  rdfs:comment "Immortalized human hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0005229 a rdfs:Class ;
  rdfs:label "XC-v cell" ;
  rdfs:comment "Rat XC sarcoma cell line, derived from a Rous sarcoma virus-induced Wistar strain rat tumor. XC forms syncytia when cultured in the presence of murine leukemia virus-producing mouse cells. However, one XC cell culture (designated as XC-v cells), found to produce type C virus particles, fails to form syncytia in the presence of murine leukemia virus-producing mouse cells." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0002612 a rdfs:Class ;
  rdfs:label "filopodium" ;
  rdfs:comment "A slender filamentous pseudopodium with a pointed end, branched or unbranched, consisting mostly of ectoplasm." ;
  rdfs:subClassOf obo:BTO_0002610 .

obo:BTO_0005361 a rdfs:Class ;
  rdfs:label "amphidial gland" ;
  rdfs:comment "Nematal gland originating posterior to the nerve ring that connects with the anterior lateral amphids." ;
  rdfs:subClassOf obo:BTO_0000431 .

obo:BTO_0004526 a rdfs:Class ;
  rdfs:label "ulcerative colitis disease specific cell type" ;
  rdfs:comment "Ulcerative colitis is a disease that causes inflammation and sores, called ulcers, in the lining of the rectum and colon." .

obo:BTO_0001841 a rdfs:Class ;
  rdfs:label "parietal ganglion" ;
  rdfs:comment "The lateral ganglia of a snail nervous system are called parietal ganglia. They innerve pallial cavity, gills and skin." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0004674 a rdfs:Class ;
  rdfs:label "ventral aorta" ;
  rdfs:comment "The artery in vertebrate embryos that carries blood from the ventricle of the heart to the aortic arches. In adult fish it branches into afferent branchial arteries supplying the gills. In adult tetrapods it is represented by the ascending part of the aorta." ;
  rdfs:subClassOf obo:BTO_0000135 .

obo:BTO_0000372 a rdfs:Class ;
  rdfs:label "bone cancer cell" ;
  rdfs:comment "Cancer cell of the skeleton. Cancers that begin in bone are rare but it is not unusual for cancers to spread (metastasize) to bone from other parts of the body. This is not called bone cancer, but is named for the organ or tissue in which the cancer begins." .

obo:BTO_0003584 a rdfs:Class ;
  rdfs:label "STC-1 cell" ;
  rdfs:comment "Murine neuroendocrine tumor cell line." ;
  rdfs:subClassOf obo:BTO_0003583 .

obo:BTO_0002731 a rdfs:Class ;
  rdfs:label "erythroid cell" ;
  rdfs:comment "Cell that will give rise to erythrocytes." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0002240 a rdfs:Class ;
  rdfs:label "exodermis" ;
  rdfs:comment "A layer of the outer living cortical cells of plants that takes over the functions of the epidermis in roots lacking secondary thickening." .

obo:BTO_0006147 a rdfs:Class ;
  rdfs:label "IHH cell" ;
  rdfs:comment "Immortalized human hepatocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0005963 a rdfs:Class ;
  rdfs:label "HCC-70 cell" ;
  rdfs:comment "Human breast mammary duct carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0005791 a rdfs:Class ;
  rdfs:label "enamel knot" ;
  rdfs:comment "In tooth development, the enamel knot is a localization of cells on an enamel organ that appear thickened in the center of the inner enamel epithelium." .

obo:BTO_0000660 a rdfs:Class ;
  rdfs:label "mycelial cord" ;
  rdfs:comment "Multihyphal linear aggregate; linearly extending, loose agglomeration of hyphae; generally not hardened or melanized." ;
  rdfs:subClassOf obo:BTO_0001436 .

obo:BTO_0003605 a rdfs:Class ;
  rdfs:label "1321-N1 cell" ;
  rdfs:comment "Human astrocytoma cell line." ;
  rdfs:subClassOf obo:BTO_0000101 .

obo:BTO_0003313 a rdfs:Class ;
  rdfs:label "WT-8 cell" ;
  rdfs:comment "Rat hepatoma cell line." .

obo:BTO_0000854 a rdfs:Class ;
  rdfs:label "zygote" ;
  rdfs:comment "Diploid cell resulting from the fusion of male and female gametes at fertilization." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0000800 a rdfs:Class ;
  rdfs:label "endoderm" ;
  rdfs:comment "A germ layer lying remote from the surface of the embryo that gives rise to internal tissues such as gut." ;
  rdfs:subClassOf obo:BTO_0000556 .

obo:BTO_0005531 a rdfs:Class ;
  rdfs:label "plant scale" ;
  rdfs:comment "A common type of trichome is the scale or peltate hair: a plate or shield-shaped cluster of cells attached directly to the surface or borne on a stalk of some kind." ;
  rdfs:subClassOf obo:BTO_0001395 .

obo:BTO_0000359 a rdfs:Class ;
  rdfs:label "middle cervical ganglion" ;
  rdfs:comment "A variable ganglion, often fused with the vertebral ganglion, on the sympathetic trunk at about the level of the cricoid cartilage; its postganglionic fibers are distributed mainly to the heart, cervical region, and upper limb." ;
  rdfs:subClassOf obo:BTO_0000113 .

obo:BTO_0004368 a rdfs:Class ;
  rdfs:label "vestibular nucleus" ;
  rdfs:comment "Any of four nuclei in the medulla oblongata on each side of the floor of the fourth ventricle of the brain in which fibers of the vestibular nerve terminate." .

obo:BTO_0006277 a rdfs:Class ;
  rdfs:label "outer mantle" ;
  rdfs:comment "Besides pigments, the outer mantle of the giant clam Tridacna squamosa has iridophores which consist of small groups of cells containing stacks of tiny platelets .The reflective platelets scatter light of photosynthetically productive wavelengths into the tissue while back-reflecting non-productive wavelength. Thus, the extensible outer mantle is brightly colored." .

obo:BTO_0000264 a rdfs:Class ;
  rdfs:label "bone marrow cell line" .

obo:BTO_0000459 a rdfs:Class ;
  rdfs:label "fibrosarcoma cell" ;
  rdfs:comment "Fibrosarcoma is a malignant tumour derived from connective tissue fibroblast." ;
  rdfs:subClassOf obo:BTO_0001207 , obo:BTO_0001622 .

obo:BTO_0005590 a rdfs:Class ;
  rdfs:label "cervical adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0001967 .

obo:BTO_0000202 a rdfs:Class ;
  rdfs:label "sense organ" ;
  rdfs:comment "A bodily structure that receives a stimulus (as heat or sound waves) and is affected in such a manner as to initiate a wave of excitation in associated sensory nerve fibers which convey specific impulses to the central nervous system where they are interpreted as corresponding sensations: RECEPTOR." .

obo:BTO_0002200 a rdfs:Class ;
  rdfs:label "Colo-678 cell" ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0001469 a rdfs:Class ;
  rdfs:label "culture condition:xylose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001010 a rdfs:Class ;
  rdfs:label "callus" ;
  rdfs:comment "Undifferentiated tissue that develops on or around an injured or cut plant surface or in tissue culture." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0002532 a rdfs:Class ;
  rdfs:label "Kobayashi cell" ;
  rdfs:comment "Burkitt lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0003215 a rdfs:Class ;
  rdfs:label "VCaP cell" ;
  rdfs:comment "Human prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0000512 a rdfs:Class ;
  rdfs:label "primary oocyte" ;
  rdfs:comment "The immature reproductive cell prior to fertilization; it is derived from an oogonium, and is called a primary oocyte prior to completion of the first maturation division, and a secondary oocyte between the first and second maturation division." ;
  rdfs:subClassOf obo:BTO_0000964 .

obo:BTO_0005810 a rdfs:Class ;
  rdfs:label "immune system" ;
  rdfs:comment "The bodily system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymph nodes, special deposits of lymphoid tissue (as in the gastrointestinal tract and bone marrow), macrophages, lymphocytes including the B cells and T cells, and antibodies." .

obo:BTO_0004177 a rdfs:Class ;
  rdfs:label "MOLM-6 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in blast crisis cell line; established from the peripheral blood of a 44-year-old man with Philadelphia chromosome-positive chronic myeloid leukemia (CML) in blast crisis in 1992." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0005634 a rdfs:Class ;
  rdfs:label "TIG-7 cell" ;
  rdfs:comment "Cell line TIG-7 derived from human male fetal lung." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0006447 a rdfs:Class ;
  rdfs:label "EFM-19 cell" ;
  rdfs:comment "Human breast carcinoma cell line, established from the pleural effusion of a 50-year-old Caucasian woman with breast carcinoma (ductal type, histological grading II) in 1979." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0003985 a rdfs:Class ;
  rdfs:label "A-375SM cell" ;
  rdfs:comment "Human melanoma cell line." .

obo:BTO_0001216 a rdfs:Class ;
  rdfs:label "Schwann cell line" .

obo:BTO_0003566 a rdfs:Class ;
  rdfs:label "alphaT3-1 cell" ;
  rdfs:comment "Mouse pituitary tumor cell line." ;
  rdfs:subClassOf obo:BTO_0000756 .

obo:BTO_0004970 a rdfs:Class ;
  rdfs:label "KOC-7C cell" ;
  rdfs:comment "Human ovarian clear cell adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0006415 .

obo:BTO_0002511 a rdfs:Class ;
  rdfs:label "pinnule" ;
  rdfs:comment "Any of the ultimate leaflets of a bipinnately compound leaf." ;
  rdfs:subClassOf obo:BTO_0002512 .

obo:BTO_0002725 a rdfs:Class ;
  rdfs:label "CRO-AP/3 cell" ;
  rdfs:comment "EBV negative PEL cell line." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0003645 a rdfs:Class ;
  rdfs:label "salivary gland tumor cell line" ;
  rdfs:subClassOf obo:BTO_0003205 .

obo:BTO_0001206 a rdfs:Class ;
  rdfs:label "sarcocarp" ;
  rdfs:comment "The fleshy part of a stone fruit, situated between the skin, or epicarp, and the stone, or endocarp, as in a peach. The term has also been used to denote, any fruit which is fleshy throughout." .

obo:BTO_0006438 a rdfs:Class ;
  rdfs:label "NCI-H2030 cell" ;
  rdfs:comment "Human non-small cell lung adenocarcinoma cell line, derived from lymph node metastasis." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0003728 a rdfs:Class ;
  rdfs:label "TXM-13 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001327 a rdfs:Class ;
  rdfs:label "granule cell layer" ;
  rdfs:comment "The granule cell layer contains multiple small round neurons that lack axons. Long dendritic processes of the neurons reach the more superficial layers and inhibit mitral cells and tufted cells. Small distal processes make contacts with the exiting mitral cell axons." .

obo:BTO_0000864 a rdfs:Class ;
  rdfs:label "tibialis" ;
  rdfs:comment "Either of two muscles of the calf of the leg." ;
  rdfs:subClassOf obo:BTO_0000722 , obo:BTO_0001257 .

obo:BTO_0002453 a rdfs:Class ;
  rdfs:label "medial dorsal nucleus of thalamus" ;
  rdfs:comment "The largest of the medial nuclei of the thalamus, having a rostral magnocellular part and a caudolateral parvocellular part, both of which make extensive intrathalamic connections with most of the other thalamic nuclei." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0002750 a rdfs:Class ;
  rdfs:label "Calu-3 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line; established from a 25-year-old caucasian male." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0006039 a rdfs:Class ;
  rdfs:label "MDA-MB-415 cell" ;
  rdfs:comment "Human mammary gland adenocarcinoma cell line; derived from a pleural effusion." ;
  rdfs:subClassOf obo:BTO_0001912 , obo:BTO_0004086 .

obo:BTO_0002117 a rdfs:Class ;
  rdfs:label "tela submucosa vesicae urinariae" ;
  rdfs:comment "The submucous layer of the wall of the urinary bladder." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0005672 a rdfs:Class ;
  rdfs:label "LNCaP-C4-2 cell" ;
  rdfs:comment "LNCaP and its derivative cell lines, which include C4-2 and the related C4-2B and CL1, are used as models of prostate cancer." .

obo:BTO_0002865 a rdfs:Class ;
  rdfs:label "GER cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0003136 a rdfs:Class ;
  rdfs:label "ZR-75-1 cell" ;
  rdfs:comment "Human Caucasian breast carcinoma cell line; derived from a malignant ascitic effusion in a 63 year old female Caucasian with infiltrating ductal carcinoma." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0005430 a rdfs:Class ;
  rdfs:label "STKM-1 cell" ;
  rdfs:comment "Human gastric carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0002389 a rdfs:Class ;
  rdfs:label "U-1285 cell" ;
  rdfs:comment "Small cell carcinoma of the lung (SCC). The U-1285 line was derived from the classical small cell type of SCC." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0000811 a rdfs:Class ;
  rdfs:label "ovary cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0003993 a rdfs:Class ;
  rdfs:label "ZP-121 cell" ;
  rdfs:comment "Dynamin-like protein 1-defective CHO-K1 cell line." .

obo:BTO_0000210 a rdfs:Class ;
  rdfs:label "cauda epididymis" ;
  rdfs:comment "The tail of the epididymis." .

obo:BTO_0005495 a rdfs:Class ;
  rdfs:label "NC-37 cell" ;
  rdfs:comment "Though deposited with the ATCC as a lymphoblastoid cell line established from a 34 year old male caucasian, DNA fingerprinting has shown this line to be a derivative of Raji Burkitt's lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0002617 a rdfs:Class ;
  rdfs:label "thyroid nodule" ;
  rdfs:comment "Pathological nodule in the thyroid gland, often filled with colloid; some are indicative of adenoma or carcinoma." .

obo:BTO_0001352 a rdfs:Class ;
  rdfs:label "NRP-154 cell" ;
  rdfs:comment "Rat prostate carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0000383 a rdfs:Class ;
  rdfs:label "renal cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0000932 a rdfs:Class ;
  rdfs:label "neuroblastoma cell line" .

obo:BTO_0003494 a rdfs:Class ;
  rdfs:label "peripheral blood cell" ;
  rdfs:comment "Peripheral blood cells are the cellular components of blood, consisting of red blood cells, white blood cells, and platelets, which are found within the circulating pool of blood and not sequestered within the lymphatic system, spleen, liver, or bone marrow." .

obo:BTO_0004246 a rdfs:Class ;
  rdfs:label "A-364 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004029 a rdfs:Class ;
  rdfs:label "94-H4 cell" ;
  rdfs:comment "High metastatic macrophage fusion hybrid cell line; established from a preparation of mouse peritoneal macrophages from syngenic DBA/2J mice, and fusion with the G418-resistant Cloudman S91 cell line, PS1- HGPRT-1 (also referred to as 6neo)." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0000687 a rdfs:Class ;
  rdfs:label "culture condition:L-mandelate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005921 a rdfs:Class ;
  rdfs:label "laryngeal squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0005920 .

obo:BTO_0005523 a rdfs:Class ;
  rdfs:label "culture condition:anaerobic and sulfate-thiosulfate-lactate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003044 a rdfs:Class ;
  rdfs:label "JY cell" ;
  rdfs:comment "An EBV-positive lymphoblastoid B cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0003240 a rdfs:Class ;
  rdfs:label "NCI-H2126 cell" ;
  rdfs:comment "Human lung adenocarcinoma; non-small cell lung cancer cell line; derived from metastatic site: pleural effusion." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002553 .

obo:BTO_0003768 a rdfs:Class ;
  rdfs:label "A-673 cell" ;
  rdfs:comment "Human rhabdomyosarcoma cell line; established from a 15 years old female." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0004470 a rdfs:Class ;
  rdfs:label "HCCLM-6 cell" ;
  rdfs:comment "Hepatocellular carcinoma cell line." .

obo:BTO_0001886 a rdfs:Class ;
  rdfs:label "primordium" ;
  rdfs:comment "The rudiment or commencement of a part or organ." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0001273 a rdfs:Class ;
  rdfs:label "spermatheca" ;
  rdfs:comment "A sac for sperm storage in the female reproductive tract of various lower animals and especially insects." ;
  rdfs:subClassOf obo:BTO_0003099 .

obo:BTO_0000870 a rdfs:Class ;
  rdfs:label "spinal nerve" ;
  rdfs:comment "Any of the paired nerves which leave the spinal cord of a craniate vertebrate, supply muscles of the trunk and limbs, and connect with the nerves of the sympathetic nervous system, which arise by a short motor ventral root and a short sensory dorsal root, and of which there are 31 pairs in humans classified according to the part of the spinal cord from which they arise into 8 cervical pairs, 12 thoracic pairs, 5 lumbar pairs, 5 sacral pairs, and one coccygeal pair." ;
  rdfs:subClassOf obo:BTO_0000925 .

obo:BTO_0002076 a rdfs:Class ;
  rdfs:label "osteomalacia cell" ;
  rdfs:comment "Osteomalacia is a disease occurring mostly in adult women that results from a deficiency in vitamin D or calcium and is characterized by a softening of the bones with accompanying pain and weakness." .

obo:BTO_0003558 a rdfs:Class ;
  rdfs:label "REC-1 cell" ;
  rdfs:comment "Human mantle cell lymphoma (B cell non-Hodgkin's lymphoma) cell line." ;
  rdfs:subClassOf obo:BTO_0001518 , obo:BTO_0002904 .

obo:BTO_0002938 a rdfs:Class ;
  rdfs:label "33B cell" ;
  rdfs:comment "Rat nervous tissue oligodendroglioma cell line. 33B is a N-Ethyl-N-nitrosourea-induced neural tumour cell line derived from 17th in vivo passage of TR33B." ;
  rdfs:subClassOf obo:BTO_0002820 .

obo:BTO_0001111 a rdfs:Class ;
  rdfs:label "preputial gland" ;
  rdfs:comment "Any of the small glands at the base of the glans penis that secrete smegma." ;
  rdfs:subClassOf obo:BTO_0000080 .

obo:BTO_0005481 a rdfs:Class ;
  rdfs:label "foreskin keratinocyte cell line" ;
  rdfs:subClassOf obo:BTO_0000375 .

obo:BTO_0003779 a rdfs:Class ;
  rdfs:label "RN-46A cell" ;
  rdfs:comment "Rat raphe-nuclei derived neuronal cell line." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0000564 a rdfs:Class ;
  rdfs:label "heart valve" ;
  rdfs:comment "A structure especially in a vein or lymphatic that closes temporarily a passage or orifice or permits movement of fluid in one direction only." .

obo:BTO_0002547 a rdfs:Class ;
  rdfs:label "KE-37 cell" ;
  rdfs:comment "Human T cell leukemia cell line; established from a 27-year-old man with acute lymphoblastic leukemia (ALL) in 1979." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0002060 a rdfs:Class ;
  rdfs:label "bronchioalveolar carcinoma cell" ;
  rdfs:comment "A variant type of adenocarcinoma of the lung, with columnar to cuboidal epithelial cells lining the alveolar septa and projecting into alveolar spaces in branching papillary formations." ;
  rdfs:subClassOf obo:BTO_0002057 .

obo:BTO_0002876 a rdfs:Class ;
  rdfs:label "CL1-5 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." .

obo:BTO_0000340 a rdfs:Class ;
  rdfs:label "culture condition:deoxyribonucleoside-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0005252 a rdfs:Class ;
  rdfs:label "36B-10 cell" ;
  rdfs:comment "Rat glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0001432 a rdfs:Class ;
  rdfs:label "vascular tissue" ;
  rdfs:comment "The supportive and conductive tissue in plants, consisting of xylem and phloem." .

obo:BTO_0002696 a rdfs:Class ;
  rdfs:label "SK-N-BE(2) cell" ;
  rdfs:comment "The SK-N-BE(2) neuroblastoma cell line was established in November of 1972 from a bone marrow biopsy taken from child with disseminated neuroblastoma after repeated courses of chemotherapy and radiotherapy." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0005743 a rdfs:Class ;
  rdfs:label "mature stage" ;
  rdfs:comment "The post-flowering stage of a plant." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0001166 a rdfs:Class ;
  rdfs:label "renal cortex" ;
  rdfs:comment "Cortex of kidney." .

obo:BTO_0005843 a rdfs:Class ;
  rdfs:label "vaginal epitelial cell" .

obo:BTO_0003345 a rdfs:Class ;
  rdfs:label "CL1 lung adenocarcinoma cell" ;
  rdfs:comment "The human lung cancer cell line CL1 was established from a 64-years-old man with a poorly differentiated adenocarcinoma." .

obo:BTO_0001870 a rdfs:Class ;
  rdfs:label "OVCA-5 cell" ;
  rdfs:comment "Human ovary carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000297 , obo:BTO_0000811 .

obo:BTO_0002628 a rdfs:Class ;
  rdfs:label "B-lymphoblastoma cell" ;
  rdfs:subClassOf obo:BTO_0000774 .

obo:BTO_0000853 a rdfs:Class ;
  rdfs:label "mesangial cell" ;
  rdfs:comment "Cell found within the glomerular lobules of mammalian kidney, where they serve as structural supports, may regulate blood flow, are phagocytic, and may act as accessory cells, presenting antigen in immune responses." .

obo:BTO_0001872 a rdfs:Class ;
  rdfs:label "alphaTN4-1 cell" ;
  rdfs:comment "Immortal murine lens epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0001874 .

obo:BTO_0005311 a rdfs:Class ;
  rdfs:label "SF-xL cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004297 a rdfs:Class ;
  rdfs:label "colonic epithelial cell" .

obo:BTO_0005855 a rdfs:Class ;
  rdfs:label "SCC-9 cell" ;
  rdfs:comment "Human tongue squamous cell carcinoma cell line, established from a 25 years old male." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0003289 a rdfs:Class ;
  rdfs:label "NAMALWA cell" ;
  rdfs:comment "Human Burkitt lymphoma cell line; established from the tumor mass of an African child with Burkitt lymphoma in 1967." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0000112 a rdfs:Class ;
  rdfs:label "sieve cell" ;
  rdfs:comment "The phloem conducting cell in nonangiosperms; they are long and tapered with small sieve areas over much of their surfaces." .

obo:BTO_0002590 a rdfs:Class ;
  rdfs:label "HEY cell" ;
  rdfs:comment "The HEY human ovarian carcinoma cell line was derived from a human ovarian cancer xenograft (HX-62) originally grown from a peritoneal deposit of a patient with moderately differentiated papillary cystadenocarcinoma of the ovary." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0005697 a rdfs:Class ;
  rdfs:label "atrichoblast cell" ;
  rdfs:comment "A root epidermal cell that will not give rise to a root hair." ;
  rdfs:subClassOf obo:BTO_0005699 .

obo:BTO_0000607 a rdfs:Class ;
  rdfs:label "HTC cell" ;
  rdfs:comment "Rat hepatoma cell line. Derived from a rat ascites tumour, which in turn was derived from a solid hepatoma induced in male Buffalo rats by feeding them 0.04% N,N'-2,7fluorenyle-bis-2,2,2-trifluoroacetamide for 12.4 months." ;
  rdfs:subClassOf obo:BTO_0000582 .

obo:BTO_0003212 a rdfs:Class ;
  rdfs:label "T-lymphoma cell line" ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0000411 a rdfs:Class ;
  rdfs:label "cervical mucosa" ;
  rdfs:comment "Lining of the head of the uterus (cervix); contains large branched glands; does not undergo sloughing." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0001659 a rdfs:Class ;
  rdfs:label "aerial root" ;
  rdfs:comment "An aerial root is a plant's root that is produced above the ground." ;
  rdfs:subClassOf obo:BTO_0001188 , obo:BTO_0001658 .

obo:BTO_0003671 a rdfs:Class ;
  rdfs:label "germinal center" ;
  rdfs:comment "The area in the center of a lymph node containing aggregations of actively proliferating lymphocytes." .

obo:BTO_0001047 a rdfs:Class ;
  rdfs:label "pharyngeal mucosa" ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0002299 a rdfs:Class ;
  rdfs:label "oliva" ;
  rdfs:comment "A part of each pyramid of the medulla oblongata, between the ventrolateral and dorsolateral sulci; it is formed by an irregular mass of gray substance (nucleus olivaris caudalis) located just beneath its surface and is linked by fiber systems to the pons and cerebellum." .

obo:BTO_0001540 a rdfs:Class ;
  rdfs:label "goblet cell" ;
  rdfs:comment "A unicellular mucous gland found in the epithelium of various mucous membranes, especially that of the respiratory passages and intestines. Droplets of mucigen collect in the upper part of the cell and distend it, while the basal end remains slender, and the cell assumes the shape of a goblet." ;
  rdfs:subClassOf obo:BTO_0000414 , obo:BTO_0003689 .

obo:BTO_0004032 a rdfs:Class ;
  rdfs:label "dopaminergic neuron" ;
  rdfs:comment "A dopaminergic neuron is a neuron that releases dopamine from its synapses. Dopaminergic neurons are present chiefly in the ventral tegmental area (VTA) of the midbrain, substantia nigra pars compacta, and arcuate nucleus of the hypothalamus. They are believed to be the primary neuron used in the reward system of the ventral tegmental area and the substantia nigra pars compacta." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0001464 a rdfs:Class ;
  rdfs:label "wing disc" ;
  rdfs:comment "The entire dorsal mesothoracic disc (wing, notal, and pleural parts), in the larval stage of Drosophila." .

obo:BTO_0005247 a rdfs:Class ;
  rdfs:label "culture condition:CD103+ cell" ;
  rdfs:comment "CD103 is expressed widely on intraepithelial lymphocyte (IEL) T cells and on some peripheral regulatory T cells (Tregs). It has also been reported on lamina propria T cells. A subset of dendritic cells in the gut mucosa and in mesenteric lymph nodes also expresses this marker and is known as CD103 dendritic cells." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0004888 a rdfs:Class ;
  rdfs:label "TC-1 cell" ;
  rdfs:comment "Mouse embryonic stem cell culture." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0004742 a rdfs:Class ;
  rdfs:label "HCT-115 cell" ;
  rdfs:comment "Human colon cancer cell line." .

obo:BTO_0001481 a rdfs:Class ;
  rdfs:label "plant" ;
  rdfs:comment "Any of a kingdom (Plantae) of living things typically lacking locomotive movement or obvious nervous or sensory organs and possessing cellulose cell walls." ;
  rdfs:subClassOf obo:BTO_0000000 .

obo:BTO_0001583 a rdfs:Class ;
  rdfs:label "T-98G cell" ;
  rdfs:comment "Human brain glioblastoma multiforme cell line, established from a 61 years old caucasian male." .

obo:BTO_0006361 a rdfs:Class ;
  rdfs:label "SKOV-1 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0000761 a rdfs:Class ;
  rdfs:label "collecting duct" ;
  rdfs:comment "The arcuate renal tubule, straight collecting tubule, and papillary duct considered together." ;
  rdfs:subClassOf obo:BTO_0000343 .

obo:BTO_0000467 a rdfs:Class ;
  rdfs:label "flight muscle" ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0000152 a rdfs:Class ;
  rdfs:label "infected cell" ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0004584 a rdfs:Class ;
  rdfs:label "acute nonlymphoblastic leukemia cell" ;
  rdfs:comment "Acute leukemia distinguished from acute lymphocytic leukemia (ALL) by the morphology of the marrow and blood leukemic cells. Cytoplasmic granules are usually present and the nucleus is usually large and irregular. ANLL is more common in adults than ALL and occurs at any age." ;
  rdfs:subClassOf obo:BTO_0001545 .

obo:BTO_0003718 a rdfs:Class ;
  rdfs:label "vasculature" ;
  rdfs:comment "The blood vessels or arrangement of blood vessels in an organ or part." .

obo:BTO_0004097 a rdfs:Class ;
  rdfs:label "epididymal clear cell" ;
  rdfs:comment "Cell with empty-appearing cytoplasm; seen normally in the sweat glands, the parathyroid glands, the collecting tubules of the kidneys, and the epididymis; they also appear in some types of cancer." .

obo:BTO_0000553 a rdfs:Class ;
  rdfs:label "peripheral blood" ;
  rdfs:comment "Blood circulating throughout the body." .

obo:BTO_0006410 a rdfs:Class ;
  rdfs:label "KB-CP10 cell" ;
  rdfs:comment "KB cells growing in 10microgram per milliliter cisplatin." .

obo:BTO_0000642 a rdfs:Class ;
  rdfs:label "intestinal mucosa" ;
  rdfs:comment "The surface lining of the intestines where the cells absorb nutrients." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0000040 a rdfs:Class ;
  rdfs:label "adenohypophysis" ;
  rdfs:comment "The anterior glandular lobe of the pituitary gland." .

obo:BTO_0002435 a rdfs:Class ;
  rdfs:label "colorectal mucosa" ;
  rdfs:subClassOf obo:BTO_0000642 .

obo:BTO_0004384 a rdfs:Class ;
  rdfs:label "osteoclast stem cell" .

obo:BTO_0000482 a rdfs:Class ;
  rdfs:label "renal distal tubule" ;
  rdfs:comment "A distal, convoluted part of the ascending limb of the renal tubule, extending from the distal straight tubule to the junctional (connecting) tubule." .

obo:BTO_0005204 a rdfs:Class ;
  rdfs:label "Ca9-22 cell" ;
  rdfs:comment "Human gingival carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0005203 .

obo:BTO_0002970 a rdfs:Class ;
  rdfs:label "H-494 cell" ;
  rdfs:comment "Human prostate carcinoma cell line." .

obo:BTO_0000123 a rdfs:Class ;
  rdfs:label "bladder" ;
  rdfs:comment "A membranous sac in animals that serves as the receptacle of a liquid or contains gas." ;
  rdfs:subClassOf obo:BTO_0001491 .

obo:BTO_0005109 a rdfs:Class ;
  rdfs:label "saphenous vein endothelial cell" .

obo:BTO_0004685 a rdfs:Class ;
  rdfs:label "bony labyrinth" ;
  rdfs:comment "The bony part of the internal ear." .

obo:BTO_0005779 a rdfs:Class ;
  rdfs:label "NCI-H1838 cell" ;
  rdfs:comment "Human adenocarcinoma non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0006244 a rdfs:Class ;
  rdfs:label "blood-brain barrier" ;
  rdfs:comment "A layer of tightly packed unique endothelial cells that make up the walls of brain capillaries and prevent substances in the blood from diffusing freely into the brain." .

obo:BTO_0006136 a rdfs:Class ;
  rdfs:label "HONE-1 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0000163 a rdfs:Class ;
  rdfs:label "corolla" ;
  rdfs:comment "Collective term for the petals of a flower." .

obo:BTO_0003446 a rdfs:Class ;
  rdfs:label "cholesteatoma tissue" ;
  rdfs:comment "A benign condition involving an expanding mass of cholesterol crystals and keratinised skin in the middle ear space of unknown cause. Symptoms of hearing loss, ear fullness and pain are common." .

obo:BTO_0000946 a rdfs:Class ;
  rdfs:label "NT2/D1 cell" ;
  rdfs:comment "Testis; metastatic site: lung malignant pluripotent embryonal carcinoma cell line. The NTERA-2 cl.D1 cell line is a pluripotent human testicular embryonal carcinoma cell line derived by cloning the NTERA-2 cell line." .

obo:BTO_0002660 a rdfs:Class ;
  rdfs:label "inflorescence stalk" ;
  rdfs:comment "The inflorescence stalk is the main stem of the inflorescence that connects to the plant." .

obo:BTO_0002233 a rdfs:Class ;
  rdfs:label "culture fluid" ;
  rdfs:comment "The liquid culture medium, obtained after filtration of the cell culture." .

obo:BTO_0003923 a rdfs:Class ;
  rdfs:label "KHOS-240S cell" ;
  rdfs:comment "Human osteosarcoma cell line; this line is a revertant of KHOS/NP (R-970-5) cell line that no longer has a rescuable Kirsten murine sarcoma virus genome." .

obo:BTO_0000000 a rdfs:Class ;
  rdfs:label "tissues, cell types and enzyme sources" ;
  rdfs:comment "A structured controlled vocabulary for the source of an enzyme. It comprises terms of tissues, cell lines, cell types and cell cultures from uni- and multicellular organisms." .

obo:BTO_0002507 a rdfs:Class ;
  rdfs:label "autonomic nervous system" ;
  rdfs:comment "The enteric, parasympathetic, and sympathetic nervous systems taken together. Generally speaking, the autonomic nervous system regulates the internal environment during both peaceful activity and physical or emotional stress. Autonomic activity is controlled and integrated by the central nervous system, especially the hypothalamus and the solitary nucleus, which receive information relayed from VISCERAL AFFERENTS; these and related central and sensory structures are sometimes (but not here) considered to be part of the autonomic nervous system itself." .

obo:BTO_0003425 a rdfs:Class ;
  rdfs:label "area postrema" ;
  rdfs:comment "A small, elevated area in the lateral wall of the inferior recess of the fourth ventricle; one of the few loci in the brain where the blood-brain barrier is lacking; a chemoreceptor area associated with vomiting. A tongue-shaped structure in the caudal region of the fourth ventricle of the brain." ;
  rdfs:subClassOf obo:BTO_0006267 .

obo:BTO_0001968 a rdfs:Class ;
  rdfs:label "C-33A cell" ;
  rdfs:comment "Cervical cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001967 .

obo:BTO_0005162 a rdfs:Class ;
  rdfs:label "FB-1 cell" ;
  rdfs:comment "A human anaplastic thyroid cancer cell line, derived from a 68-year-old woman who underwent surgery for anaplastic thyroid cancer." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0005473 a rdfs:Class ;
  rdfs:label "RTG-P1 cell" ;
  rdfs:comment "The RTG-2 cell line was transfected with a trout Mx1 promoter-luciferase construct and selected to produce a stable cell line." .

obo:BTO_0002280 a rdfs:Class ;
  rdfs:label "lignifying cell" ;
  rdfs:comment "A lignifying cell deposits lignin in its cell wall. Lignifying cells are localized in different plant tissues." .

obo:BTO_0003504 a rdfs:Class ;
  rdfs:label "OV-202 cell" ;
  rdfs:comment "Human epithelial ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0000737 a rdfs:Class ;
  rdfs:label "leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0001035 .

obo:BTO_0002718 a rdfs:Class ;
  rdfs:label "TR-146 cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0004166 a rdfs:Class ;
  rdfs:label "myofibroblast cell line" ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0006439 a rdfs:Class ;
  rdfs:label "H-414 cell" ;
  rdfs:comment "Subline of HCT116 cell line which has intact DNA mismatch repair gene (hMLH1)." .

obo:BTO_0003739 a rdfs:Class ;
  rdfs:label "TALL-1 cell" ;
  rdfs:comment "Human T cell leukemia cell line from acute lymphoblastic leukemia, established from the bone marrow of a 28-year-old man who developed the terminal leukemic phase of lymphosarcoma in 1976." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0003652 a rdfs:Class ;
  rdfs:label "synovial cell" ;
  rdfs:comment "Fibroblast-like cells that form 1-6 epithelioid layers in the synovial membrane of joints; believed to contribute proteoglycans and hyaluronate to the synovial fluid." .

obo:BTO_0003729 a rdfs:Class ;
  rdfs:label "TUHR-4TKB cell" ;
  rdfs:comment "Human renal cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0000188 a rdfs:Class ;
  rdfs:label "colonic cell line" ;
  rdfs:subClassOf obo:BTO_0000003 .

obo:BTO_0001572 a rdfs:Class ;
  rdfs:label "articular cartilage" ;
  rdfs:comment "A thin layer of cartilage, usually hyaline, on the articular surface of bones in synovial joints." ;
  rdfs:subClassOf obo:BTO_0000206 .

obo:BTO_0006406 a rdfs:Class ;
  rdfs:label "GLAG-66 cell" ;
  rdfs:comment "Primary thyroid papillary carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003210 .

obo:BTO_0002480 a rdfs:Class ;
  rdfs:label "plume" ;
  rdfs:comment "Organisms as Riftia pachyptila end with a deep red fan-like structure (plume) which extends into the water and which absorbs H2S and O2 for the bacteria, and also absorbs CO2 for use as synthetic raw material. An animal structure having a main shaft bearing many hairs or filamentous parts; especially: a full bushy tail." ;
  rdfs:subClassOf obo:BTO_0001262 , obo:BTO_0001492 .

obo:BTO_0005258 a rdfs:Class ;
  rdfs:label "oropharyngeal cancer cell" ;
  rdfs:comment "About 90% of oropharyngeal neoplasms are squamous cell carcinoma. Most patients complain of sore throat, otalgia or dysphagia; more advanced, invasive tumours may cause severe pain and trismus." .

obo:BTO_0004577 a rdfs:Class ;
  rdfs:label "aortic smooth muscle cell" ;
  rdfs:subClassOf obo:BTO_0004578 .

obo:BTO_0000448 a rdfs:Class ;
  rdfs:label "fetal serum" ;
  rdfs:subClassOf obo:BTO_0001239 .

obo:BTO_0001622 a rdfs:Class ;
  rdfs:label "fibroblastoma cell" ;
  rdfs:comment "A cell of a tumor arising from fibroblasts, divided into fibromas and fibrosarcomas." .

obo:BTO_0005409 a rdfs:Class ;
  rdfs:label "culture condition:5-chlorosalicylate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006225 a rdfs:Class ;
  rdfs:label "olfactory placode cell line" ;
  rdfs:comment "A thick plate of cells derived from the neural ectoderm in the head region of the vertebrate embryo and developing into the olfactory region of the nasal cavity." ;
  rdfs:subClassOf obo:BTO_0002871 .

obo:BTO_0003393 a rdfs:Class ;
  rdfs:label "granule cell" ;
  rdfs:comment "In neuroscience, granule cells refer to tiny neurons (a type of cell) that are around 10 micrometres in diameter. Granule cells are found within the granular layer of the cerebellum, layer 4 of cerebral cortex, the dentate gyrus of the hippocampus, and in the olfactory bulb." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0001217 a rdfs:Class ;
  rdfs:label "scape" ;
  rdfs:comment "A peduncle arising at or beneath the surface of the ground in an acaulescent plant (as the tulip); broadly: a flower stalk." ;
  rdfs:subClassOf obo:BTO_0001300 .

obo:BTO_0001453 a rdfs:Class ;
  rdfs:label "detrusor" ;
  rdfs:comment "The outer largely longitudinally arranged musculature of the bladder wall." ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0005122 a rdfs:Class ;
  rdfs:label "ovarian cyst" ;
  rdfs:comment "Ovarian cysts are small fluid-filled sacs that develop in a woman's ovaries." .

obo:BTO_0004808 a rdfs:Class ;
  rdfs:label "CHO-91-22 cell" ;
  rdfs:comment "CHO-K1 cells were stably transfected with one or more plasmids for expression of gp91phox and p22phox." .

obo:BTO_0002161 a rdfs:Class ;
  rdfs:label "ascocarp" ;
  rdfs:comment "The fruiting body of an ascomycetous fungus, including the asci and ascospores." ;
  rdfs:subClassOf obo:BTO_0000487 .

obo:BTO_0005579 a rdfs:Class ;
  rdfs:label "acute undifferentiated leukemia cell" ;
  rdfs:comment "Acute myelogenous leukemia in which the predominating cell is so immature it cannot be classified." ;
  rdfs:subClassOf obo:BTO_0001545 .

obo:BTO_0000732 a rdfs:Class ;
  rdfs:label "KU-812 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in myeloid blast crisis, established from the peripheral blood of a 38-year-old man with chronic myeloid leukemia (CML) in myeloid blast crisis; described to express basophilic features." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0004003 a rdfs:Class ;
  rdfs:label "NA cell" ;
  rdfs:comment "Human oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0002591 a rdfs:Class ;
  rdfs:label "HL-60/Vinc cell" ;
  rdfs:comment "Multidrug resistant subline of HL-60." .

obo:BTO_0000837 a rdfs:Class ;
  rdfs:label "MDCK cell" ;
  rdfs:comment "The MDCK cell line was derived from a kidney of an apparently normal adult female cocker spaniel, September, 1958, by S.H. Madin and N.B. Darby. The cells are positive for keratin by immunoperoxidase staining. MDCK cells have been used to study processing of beta amyloid precursor protein and sorting of its proteolytic products." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0001741 a rdfs:Class ;
  rdfs:label "incisor" ;
  rdfs:comment "A tooth adapted for cutting or gnawing, located at the front of the mouth along the apex of the dental arch." ;
  rdfs:subClassOf obo:BTO_0000397 .

obo:BTO_0004188 a rdfs:Class ;
  rdfs:label "ECRF cell" ;
  rdfs:comment "Immortalized HUVEC cell line." ;
  rdfs:subClassOf obo:BTO_0001949 .

obo:BTO_0002190 a rdfs:Class ;
  rdfs:label "culture condition:xylan-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000113 a rdfs:Class ;
  rdfs:label "cervical ganglion" ;
  rdfs:comment "Any of three sympathetic ganglia on each side of the neck." ;
  rdfs:subClassOf obo:BTO_0001333 .

obo:BTO_0003207 a rdfs:Class ;
  rdfs:label "A2780/100 cell" ;
  rdfs:comment "A variant of A2780 cell line, resistant to radiation as well as DNA crosslinking agents, e.g. chlorambucil, melphalan and cisplatin." .

obo:BTO_0000019 a rdfs:Class ;
  rdfs:label "A7r5 cell" ;
  rdfs:comment "Rat embryonic thoracic aorta smooth muscle cell line. The cells exhibit an increase in activity of the enzymes myokinase and creatine phosphokinase (CPK) as the culture reaches stationary phase. Muscle type CPK is synthesized after cell division has ceased." ;
  rdfs:subClassOf obo:BTO_0000669 , obo:BTO_0001200 .

obo:BTO_0000329 a rdfs:Class ;
  rdfs:label "culture condition:D-ribose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002786 a rdfs:Class ;
  rdfs:label "cystadenoma cell" ;
  rdfs:comment "Adenoma characterized by epithelium-lined cystic masses that contain secreted material, usually serous or mucinous; it generally occurs in the ovary, salivary glands, or pancreas." ;
  rdfs:subClassOf obo:BTO_0000178 .

obo:BTO_0000903 a rdfs:Class ;
  rdfs:label "atrium" ;
  rdfs:comment "In the heart, the atrium is an upper chamber found on both sides of the heart. The left atrium receives red, oxygenated blood from the lungs by way of the pulmonary veins. The right atrium receives dark red blood from the other parts of the body." .

obo:BTO_0001554 a rdfs:Class ;
  rdfs:label "661W cell" ;
  rdfs:comment "Retinal cell culture of murine 661W photoreceptor-derived cells." ;
  rdfs:subClassOf obo:BTO_0003061 .

obo:BTO_0001200 a rdfs:Class ;
  rdfs:label "aorta thoracica smooth muscle cell line" ;
  rdfs:subClassOf obo:BTO_0001964 , obo:BTO_0002195 .

obo:BTO_0001021 a rdfs:Class ;
  rdfs:label "periodontium" ;
  rdfs:comment "The tissues that invest or help to invest and support the teeth, including the periodontal ligament, gingivae, cementum, and alveolar and supporting bone." ;
  rdfs:subClassOf obo:BTO_0000397 .

obo:BTO_0001140 a rdfs:Class ;
  rdfs:label "psoas" ;
  rdfs:comment "Either of two muscles of the loin that rotate the hip joint and flex the spine." ;
  rdfs:subClassOf obo:BTO_0001261 .

obo:BTO_0003555 a rdfs:Class ;
  rdfs:label "MBT-2 cell" ;
  rdfs:comment "MBT-2 is a mouse transitional cell carcinoma cell line induced by the carcinogen N-[4-(5-nitro-2-furyl)-2-thiazolyl]_formamide_(FANFT)." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0006120 a rdfs:Class ;
  rdfs:label "villous syncytiotrophoblast" ;
  rdfs:subClassOf obo:BTO_0001335 .

obo:BTO_0000758 a rdfs:Class ;
  rdfs:label "myelencephalon" ;
  rdfs:comment "The posterior part of the developing vertebrate hindbrain or the corresponding part of the adult brain composed of the medulla oblongata." .

obo:BTO_0002667 a rdfs:Class ;
  rdfs:label "cord blood stem cell" ;
  rdfs:comment "Blood from the placenta and umbilical cord that are left over after birth is one source of adult stem cells." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0000935 a rdfs:Class ;
  rdfs:label "LAN-5 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001959 a rdfs:Class ;
  rdfs:label "PEER cell" ;
  rdfs:comment "Human T cell leukemia; established from the peripheral blood of a 4-year-old girl with T cell acute lymphoblastic leukemia (T-ALL) in second relapse in 1977; cell lines BE-13 (DSM ACC 396) and PEER show identical DNA fingerprints and hence share common origin, presumably due to cross-contamination; however, their diploid and tetraploid karyotypes indicative of earlier and later passage numbers, respectively, suggest that BE-13 is derived from PEER, rather than vice-versa." ;
  rdfs:subClassOf obo:BTO_0002144 , obo:BTO_0002504 .

obo:BTO_0000022 a rdfs:Class ;
  rdfs:label "abdominal ganglion" ;
  rdfs:comment "The visceral sacs nerve knot is called visceral ganglion. In contrary to the mostly paired other ganglia this nerve knot is unpaired. The visceral ganglion innerves the pallial organs as well as the inner organs." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0003438 a rdfs:Class ;
  rdfs:label "WM-9 cell" ;
  rdfs:comment "Human melanoma cell line, derived from lymph node metastasis." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005146 a rdfs:Class ;
  rdfs:label "HTh-7 cell" ;
  rdfs:comment "Human anaplastic thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0001114 a rdfs:Class ;
  rdfs:label "primary leaf" ;
  rdfs:comment "One of the first pair of leaves to emerge above the cotyledon during the development of a seedling; it is often morphologically distinct from subsequent leaves." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0005675 a rdfs:Class ;
  rdfs:label "BNL-HCC cell" ;
  rdfs:comment "Mouse hepatoma cell line derived from the normal BALB/c embryonic liver cell line BNL CL2." .

obo:BTO_0006158 a rdfs:Class ;
  rdfs:label "root vascular cylinder" ;
  rdfs:comment "In the roots, the vascular tissue is organized within a single central vascular cylinder." .

obo:BTO_0004764 a rdfs:Class ;
  rdfs:label "V400 cell" ;
  rdfs:comment "Human somatic proximal colonic cancer cell line, established from a caucasian male." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0004239 a rdfs:Class ;
  rdfs:label "ovarian theca-interstitial cell" ;
  rdfs:subClassOf obo:BTO_0004238 .

obo:BTO_0004264 a rdfs:Class ;
  rdfs:label "INC-2 cell" ;
  rdfs:comment "A non-differentiating cell line, established from the mouse myoblastic cell line C2C12." .

obo:BTO_0002069 a rdfs:Class ;
  rdfs:label "wax gland" ;
  rdfs:comment "Any gland which secretes a wax product in a scale, string or powder. Coccidae: the circumgenital and parastigmatic glands. Hymenoptera: Apoidea, abdominal glands that produce beeswax. Neuroptera (Coniopterygidae): glands on head, thorax and abdomen which produce a meal-like wax. Wax glands have been identified on all tagmata and appendages." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0002678 a rdfs:Class ;
  rdfs:label "testicular vein" ;
  rdfs:comment "Either of the testicular veins." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0003394 a rdfs:Class ;
  rdfs:label "Brockmann body" ;
  rdfs:comment "Certain teleost fish have large anatomically discrete islet organs called Brockmann bodies (BBs)." ;
  rdfs:subClassOf obo:BTO_0000991 .

obo:BTO_0005221 a rdfs:Class ;
  rdfs:label "PC-3M-LN4 cell" ;
  rdfs:comment "PC-3M cells were injected into the prostates of athymic mice. Tumors from the prostate or lymph nodes were harvested and cells were reinjected into the prostate. This cycle was repeated three to five times to yield cell line PC-3M-LN4." .

obo:BTO_0002348 a rdfs:Class ;
  rdfs:label "toe" ;
  rdfs:comment "1. Any of the five digits of the foot. 2. The anterior part of a horse's hoof." .

obo:BTO_0004924 a rdfs:Class ;
  rdfs:label "NOS-4 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line; derived from serous cystadenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 , obo:BTO_0003804 , obo:BTO_0004883 .

obo:BTO_0001919 a rdfs:Class ;
  rdfs:label "tube foot" ;
  rdfs:comment "One of the numerous external, fluid-filled muscular tubes of echinoderms, such as the starfish or sea urchin, serving as organs of locomotion, food handling, and respiration." ;
  rdfs:subClassOf obo:BTO_0000476 .

obo:BTO_0002797 a rdfs:Class ;
  rdfs:label "culture condition:N-3-oxododecanoyl-L-homoserine lactone/ammonium chloride-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006428 a rdfs:Class ;
  rdfs:label "plant placenta" ;
  rdfs:comment "The part within the ovary of a flowering plant to which the ovules are attached." .

obo:BTO_0002973 a rdfs:Class ;
  rdfs:label "267T2 cell" ;
  rdfs:comment "Murine lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0004145 a rdfs:Class ;
  rdfs:label "Lovo-li cell" ;
  rdfs:comment "Colorectal cancer cell line." .

obo:BTO_0001868 a rdfs:Class ;
  rdfs:label "occipital pole" ;
  rdfs:comment "The most posterior promontory of each cerebral hemisphere; the apex of the occipital lobe." .

obo:BTO_0004303 a rdfs:Class ;
  rdfs:label "lymphatic endothelium" .

obo:BTO_0003899 a rdfs:Class ;
  rdfs:label "GT1-1 cell" ;
  rdfs:comment "Immortalized GnRH secreting mouse neuronal cell line." .

obo:BTO_0000101 a rdfs:Class ;
  rdfs:label "astrocytoma cell line" ;
  rdfs:subClassOf obo:BTO_0000690 .

obo:BTO_0005772 a rdfs:Class ;
  rdfs:label "HO-8910PM" ;
  rdfs:comment "Highly metastatic human ovarian cancer cell line." .

obo:BTO_0006115 a rdfs:Class ;
  rdfs:label "mesenterial filament" ;
  rdfs:comment "A thickened rim or ribbon-like extension running along the free border of a mesentery from the end of the actinopharynx downwards. They aid in the capture and digestion of food materials and may also assist in inhibiting substrate competitors." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0006432 a rdfs:Class ;
  rdfs:label "posterior tuberculum" ;
  rdfs:comment "The posterior tuberculum and the preglomerular complex are two dominant structures in the basal diencephalon of zebrafish, which also have no apparent counterparts in amniote tetrapods like birds and mammals. Yet, a large posterior tuberculum is present in jawless vertebrates (lampreys), cartilaginous fishes (sharks and manta rays), lungfish, and amphibians." .

obo:BTO_0002467 a rdfs:Class ;
  rdfs:label "ventral nucleus of thalamus" ;
  rdfs:comment "A large group of nuclei lying between the internal medullary lamina and the internal capsule; it includes ventral anterior, ventral intermediate, ventral lateral, ventral medial, ventrobasal and other nuclei, which relay impulses to various specific areas of the cerebral cortex." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0002110 a rdfs:Class ;
  rdfs:label "tela submucosa gastris" ;
  rdfs:comment "The tissue underlying the tunica mucosa of the stomach." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0001588 a rdfs:Class ;
  rdfs:label "MEL-JUSO cell" ;
  rdfs:comment "Human melanoma, established from the primary tumor of a 58-year-old woman with melanoma in 1977." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001511 a rdfs:Class ;
  rdfs:label "tooth germ" ;
  rdfs:comment "A budlike thickening of the dental lamina that is the primordium of a tooth, and in which the enamel knot develops; the collective structures from which a tooth is formed, including the dental follicle, enamel organ, and dental papilla." .

obo:BTO_0000072 a rdfs:Class ;
  rdfs:label "carpel" ;
  rdfs:comment "The female reproductive part of a flower, consisting of stigma, style, and ovary." .

obo:BTO_0006378 a rdfs:Class ;
  rdfs:label "AK-D cell" ;
  rdfs:comment "Felis catus fetal lung cell line." ;
  rdfs:subClassOf obo:BTO_0000353 , obo:BTO_0001242 .

obo:BTO_0003155 a rdfs:Class ;
  rdfs:label "pleural mesothelium" ;
  rdfs:comment "Mesothelium: the layer of flat cells, derived from the mesoderm, that line the coelom or body cavity of the embryo. In the adult, it forms the simple squamous epithelium that covers all true serous membranes (peritoneum, pericardium, pleura)." .

obo:BTO_0002836 a rdfs:Class ;
  rdfs:label "NCI-H460M cell" ;
  rdfs:comment "Metastatic subclone of NCI-H460 cell line." .

obo:BTO_0003320 a rdfs:Class ;
  rdfs:label "HEL-92.1.7 cell" ;
  rdfs:comment "Human erythroleukemia cell line; established from a 30 years old caucasian male." .

obo:BTO_0005184 a rdfs:Class ;
  rdfs:label "SVGp12 cell" ;
  rdfs:comment "The SVG p12 cell line was established by transfecting cultured human fetal glial cells from brain material dissected from 8 to 12 week old embryos with DNA from an ori - mutant of SV40." ;
  rdfs:subClassOf obo:BTO_0001531 .

obo:BTO_0004731 a rdfs:Class ;
  rdfs:label "lymphoid progenitor cell" ;
  rdfs:comment "One of the two stem cells derived from hematopoietic stem cells, the other being the myeloid progenitor cell. Derived from these myeloid progenitor cells are the erythroid progenitor cells and the myeloid cells." .

obo:BTO_0005157 a rdfs:Class ;
  rdfs:label "juxtaglomerular apparatus" ;
  rdfs:comment "The juxtaglomerular apparatus is a microscopic structure in the kidney, which regulates the function of each nephron. The juxtaglomerular apparatus is named for its proximity to the glomerulus. It is found between the vascular pole of the renal corpuscle and the returning distal convoluted tubule of the same nephron. This location is critical to its function in regulating renal blood flow and glomerular filtration rate. The three cellular components of the apparatus are the macula densa, extraglomerular mesangial cells, and juxtaglomerular cells." .

obo:BTO_0001994 a rdfs:Class ;
  rdfs:label "culture condition:uracil-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005844 a rdfs:Class ;
  rdfs:label "vaginal epithelial cell line" .

obo:BTO_0000181 a rdfs:Class ;
  rdfs:label "Lewis lung carcinoma cell line" ;
  rdfs:comment "A carcinoma discovered by Dr. Margaret R. Lewis of the Wistar Institute in 1951. This Tumor originated spontaneously as a carcinoma of the lung of a C57BL Mouse. It is also called 3LL and LLC and is used as a transplantable malignancy." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0004495 a rdfs:Class ;
  rdfs:label "SIRC cell" ;
  rdfs:comment "Rabbit corneal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0003346 .

obo:BTO_0005253 a rdfs:Class ;
  rdfs:label "CHP-100 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001648 a rdfs:Class ;
  rdfs:label "longissimus" ;
  rdfs:comment "The intermediate division of the sacrospinalis muscle that consists of the longissimus capitis, longissimus cervicis, and longissimus thoracis :also: any of these three muscles." .

obo:BTO_0006205 a rdfs:Class ;
  rdfs:label "serotonergic neuron" ;
  rdfs:comment "A nerve cell that uses serotonin as its neurotransmitter." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0002417 a rdfs:Class ;
  rdfs:label "helper T-lymphocyte" ;
  rdfs:comment "A T-cell that participates in an immune response by recognizing a foreign antigen and secreting lymphokines to activate T cell and B cell proliferation, that usually carries CD4 molecular markers on its cell surface, and that is reduced to 20 percent or less of normal numbers in AIDS." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0002602 a rdfs:Class ;
  rdfs:label "RTH-149 cell" ;
  rdfs:comment "Rainbow trout, Oncorhynchus mykiss, hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0005589 a rdfs:Class ;
  rdfs:label "oviduct ciliated cell" ;
  rdfs:comment "A ciliated columnar epithelium lines the lumen of the uterine tube, where currents generated by the cilia propel the egg cell toward the uterus." .

obo:BTO_0000141 a rdfs:Class ;
  rdfs:label "bone marrow" ;
  rdfs:comment "The soft, fatty, vascular tissue that fills most bone cavities and is the source of red blood cells and many white blood cells." .

obo:BTO_0003378 a rdfs:Class ;
  rdfs:label "phellem" ;
  rdfs:comment "The outermost layer of tissue in woody plants that is resistant to the passage of water vapor and gases and that becomes the bark. Cork is secondary tissue, formed on the outside of the tissue layer known as cork cambium. The cell walls of cork cells contain suberin. Once they mature, cork cells die." .

obo:BTO_0006405 a rdfs:Class ;
  rdfs:label "K-1 cell" ;
  rdfs:comment "Human thyroid carcinoma cell line; derived from a primary papillary thyroid carcinoma. It has been reported that K1 cells have their origin in the thyroid papillary carcinoma cell line GLAG-66." .

obo:BTO_0003263 a rdfs:Class ;
  rdfs:label "HEK-AD293 cell" ;
  rdfs:comment "A derivative of the commonly used HEK293 cell line, with improved cell adherence and plaque formation properties from Stratagene." .

obo:BTO_0003826 a rdfs:Class ;
  rdfs:label "culture condition:phenylethylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004935 a rdfs:Class ;
  rdfs:label "NALM-24 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0001829 a rdfs:Class ;
  rdfs:label "choroid" ;
  rdfs:comment "The dark-brown vascular coat of the eye between the sclera and the retina." .

obo:BTO_0001694 a rdfs:Class ;
  rdfs:label "urinary bladder epithelium" .

obo:BTO_0003692 a rdfs:Class ;
  rdfs:label "prostatic intraepithelial neoplasia cell" ;
  rdfs:comment "A premalignant change arising in the prostatic epithelium, regarded as the most important and most likely precursor of prostatic adenocarcinoma. The neoplasia takes the form of an intra-acinar or ductal proliferation of secretory cells with unequivocal nuclear anaplasia, which corresponds to nuclear grade 2 and 3 invasive prostate cancer." .

obo:BTO_0005910 a rdfs:Class ;
  rdfs:label "JURL-MK2 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in blast crisis; established from the peripheral blood of a 73-year-old man with chronic myeloid leukemia in blast crisis in 1993; cells carry the Philadelphia chromosome; JURL-MK1 and JURL-MK2 are sister cell lines derived from the same patient." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0004956 a rdfs:Class ;
  rdfs:label "capillary endothelial cell" ;
  rdfs:comment "A cell of the capillary endothelium." .

obo:BTO_0003167 a rdfs:Class ;
  rdfs:label "143-B cell" ;
  rdfs:comment "Human fibroblast osteosarcoma cell line lacking the thymidine kinase (TK) gene." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0005546 a rdfs:Class ;
  rdfs:label "tuber meristem" .

obo:BTO_0005873 a rdfs:Class ;
  rdfs:label "yolk sac cancer cell line" .

obo:BTO_0002713 a rdfs:Class ;
  rdfs:label "UM-SCC-21A cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0002143 a rdfs:Class ;
  rdfs:label "CEM-VCR R cell" ;
  rdfs:comment "Acute lymphoblastic leukemia cell line, resistant to vincristine." .

obo:BTO_0002360 a rdfs:Class ;
  rdfs:label "medial cuneiform bone" ;
  rdfs:comment "The medial and largest of the three wedge-shaped tarsal bones located medial to the cuboid and between the navicular and the first three metatarsal bones." ;
  rdfs:subClassOf obo:BTO_0002343 .

obo:BTO_0004123 a rdfs:Class ;
  rdfs:label "HS-5 cell" ;
  rdfs:comment "Human bone marrow stromal cell line." ;
  rdfs:subClassOf obo:BTO_0003296 .

obo:BTO_0000895 a rdfs:Class ;
  rdfs:label "myelin membrane" ;
  rdfs:comment "The multilamellar myelin membrane is a specialised lipid-rich domain of the glial cell plasma membrane." .

obo:BTO_0002728 a rdfs:Class ;
  rdfs:label "BCP-1 cell" ;
  rdfs:comment "EBV negative PEL cell line." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0000318 a rdfs:Class ;
  rdfs:label "CV-1 cell" ;
  rdfs:comment "Normal kidney cell line. The CV-1 cell line was derived from the kidney of a male adult African green monkey by F.C. Jensen, et al in March, 1964 for use in Rous sarcoma virus transformation studies." ;
  rdfs:subClassOf obo:BTO_0000067 , obo:BTO_0000453 .

obo:BTO_0002262 a rdfs:Class ;
  rdfs:label "plant pedicel" ;
  rdfs:comment "1. A small stalk or stalklike part bearing a single flower in an inflorescence. 2. A support for a fern sporangium or moss capsule." ;
  rdfs:subClassOf obo:BTO_0001300 .

obo:BTO_0006485 a rdfs:Class ;
  rdfs:label "PA-TU-8902 cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line; established in 1985 from the primary ductal pancreatic adenocarcinoma (grade II) from a 44-year-old woman." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0004635 a rdfs:Class ;
  rdfs:label "29-13 cell" ;
  rdfs:comment "Procyclic trypanosome cell line of Trypanosoma brucei." ;
  rdfs:subClassOf obo:BTO_0004243 .

obo:BTO_0004516 a rdfs:Class ;
  rdfs:label "SF-4068 cell" ;
  rdfs:comment "Human meningioma cell line." ;
  rdfs:subClassOf obo:BTO_0004398 .

obo:BTO_0002580 a rdfs:Class ;
  rdfs:label "chronic myeloid leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000740 .

obo:BTO_0000721 a rdfs:Class ;
  rdfs:label "leg" ;
  rdfs:comment "A limb of an animal used especially for supporting the body and for walking." ;
  rdfs:subClassOf obo:BTO_0001729 , obo:BTO_0002345 .

obo:BTO_0001529 a rdfs:Class ;
  rdfs:label "BSC-40 cell" ;
  rdfs:comment "Cercopithecus aethiops (African green monkey) epithelial kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0005664 a rdfs:Class ;
  rdfs:label "COGA-1A cell" ;
  rdfs:comment "A moderately differentiated human colon cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0000279 a rdfs:Class ;
  rdfs:label "testicular cancer cell" ;
  rdfs:comment "Cancer that forms in tissues of the testis. Testicular cancer usually occurs in young or middle-aged men. Two main types of testicular cancer are seminomas (cancers that grow slowly and are sensitive to radiation therapy) and nonseminomas (different cell types that grow more quickly than seminomas)." .

obo:BTO_0006417 a rdfs:Class ;
  rdfs:label "Sertoli cell tumor cell" ;
  rdfs:comment "A sex cord-gonadal stromal tumor of Sertoli cells. They can occur in the testis or ovary. They are very rare and generally peak between the ages of 35 and 50. They are typically well-differentiated, and may be misdiagnosed as seminomas as they often appear very similar." .

obo:BTO_0005811 a rdfs:Class ;
  rdfs:label "cigar leaf" ;
  rdfs:comment "A leaf near the apex of a stem that is still rolled into a cylinder." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0005748 a rdfs:Class ;
  rdfs:label "AC2M2 cell" ;
  rdfs:comment "Highly metastatic murine mammary carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0000489 a rdfs:Class ;
  rdfs:label "intestinal cancer cell" ;
  rdfs:subClassOf obo:BTO_0001533 .

obo:BTO_0002034 a rdfs:Class ;
  rdfs:label "SK-UT-1 cell" ;
  rdfs:comment "Human leiomyosarcoma cell line; established from a 75-years old caucasian female with mesodermal tumor (mixed) grade III in the uterus." ;
  rdfs:subClassOf obo:BTO_0002488 .

obo:BTO_0003076 a rdfs:Class ;
  rdfs:label "RAMOS cell" ;
  rdfs:comment "Human Caucasian Burkitt's lymphoma cell line. Derived from a Burkitt's lymphoma which does not possess the EBV genome." .

obo:BTO_0004708 a rdfs:Class ;
  rdfs:label "thyroid follicle" ;
  rdfs:comment "Discrete, cystlike units of the thyroid gland that are lined with cuboidal epithelium and are filled with a colloid substance, about 30 to each lobule." .

obo:BTO_0001317 a rdfs:Class ;
  rdfs:label "glomerular layer" ;
  rdfs:comment "The glomerular layer is the most superficial layer, consisting of mitral cell dendritic arborizations (glomeruli), olfactory nerve fibers, and periglomerular cells. Periglomerular cells contact multiple mitral cell dendrites within the glomeruli and provide lateral inhibition of neighboring glomeruli while allowing excitation of a specific mitral cell dendritic tree. Each mitral cell is contacted by at least 1000 olfactory nerve fibers." .

obo:BTO_0005001 a rdfs:Class ;
  rdfs:label "retinal microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0003123 .

obo:BTO_0004527 a rdfs:Class ;
  rdfs:label "uterine luminal fluid" ;
  rdfs:comment "At the time of oestrus the rat uterus accumulates intraluminal fluid. This fluid engorgement occurs in many species, especially in rodents. The fluid is secreted by the endometrium and oviduct and is retained in the uterus by the high degree of muscle tone at the cervix and uterotubal junction." ;
  rdfs:subClassOf obo:BTO_0003623 .

obo:BTO_0001782 a rdfs:Class ;
  rdfs:label "peritoneal cavity" ;
  rdfs:comment "The potential space of capillary thinness between the parietal and the visceral peritoneum, which is normally empty except for a thin serous fluid that keeps the surfaces moist." .

obo:BTO_0000239 a rdfs:Class ;
  rdfs:label "telencephalon" ;
  rdfs:comment "An enlarged anterior or upper part of the brain; especially: the expanded anterior portion of the brain that in higher mammals overlies the rest of the brain, consists of cerebral hemispheres and connecting structures, and is considered to be the seat of conscious mental processes." .

obo:BTO_0000820 a rdfs:Class ;
  rdfs:label "C127I cell" ;
  rdfs:comment "Mouse mammary gland tumor cell line. C127I cells are suitable hosts for transformation with bovine papilloma virus DNA plasmids." .

obo:BTO_0002222 a rdfs:Class ;
  rdfs:label "bract" ;
  rdfs:comment "A small modified leaf in a flower cluster." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0000198 a rdfs:Class ;
  rdfs:label "cardia" ;
  rdfs:comment "The opening of the esophagus into the stomach; also: the part of the stomach adjoining this opening." .

obo:BTO_0002497 a rdfs:Class ;
  rdfs:label "fasciolar gyrus" ;
  rdfs:comment "A posterior and upward extension of the dentate gyrus, forming a transitional area between the dentate gyrus and the indusium griseum." .

obo:BTO_0003996 a rdfs:Class ;
  rdfs:label "sensitive lamina" ;
  rdfs:comment "The laminae which interdigitate with the horny laminae of the hoof and which are made up of laminar corium plus a coat of not yet cornified epidermis." ;
  rdfs:subClassOf obo:BTO_0003997 .

obo:BTO_0003292 a rdfs:Class ;
  rdfs:label "RAW-264.7 cell" ;
  rdfs:comment "Mouse ascites macrophage cell line; established from a tumor induced by Abelson murine leukemia virus." ;
  rdfs:subClassOf obo:BTO_0002278 , obo:BTO_0002332 .

obo:BTO_0000976 a rdfs:Class ;
  rdfs:label "HEp-2 cell" ;
  rdfs:comment "This line was originally thought to be derived from an epidermoid carcinoma of the larynx, but was subsequently found to have been established via HeLa cell contamination." ;
  rdfs:subClassOf obo:BTO_0000955 .

obo:BTO_0000061 a rdfs:Class ;
  rdfs:label "alveolar sac" ;
  rdfs:comment "Each large alveolar sac is like a grape cluster which contains ten or more alveoli." .

obo:BTO_0003450 a rdfs:Class ;
  rdfs:label "CHO-6 cell" ;
  rdfs:comment "Chinese hamster ovary cell line. CHO6 is a mutagenized cell line resistant to attachment and infection by Chlamydia." .

obo:BTO_0006193 a rdfs:Class ;
  rdfs:label "aortic body" ;
  rdfs:comment "One of several small structures on the arch of the aorta that contain neural tissue sensitive to the chemical composition of arterial blood. The aortic bodies respond primarily to large reductions in blood oxygen content and trigger an increase in respiratory rate." ;
  rdfs:subClassOf obo:BTO_0000135 .

obo:BTO_0005981 a rdfs:Class ;
  rdfs:label "auditory capsule" ;
  rdfs:comment "The cartilage capsule surrounding the internal ear mechanism; in elasmobranchs, it remains cartilaginous in the adult; in the embryos of higher vertebrates, it is cartilaginous at first but later becomes bony, at approximately 23 weeks in humans." .

obo:BTO_0000079 a rdfs:Class ;
  rdfs:label "anther" ;
  rdfs:comment "The male reproductive organ enclosing and containing the pollen grains." .

obo:BTO_0005934 a rdfs:Class ;
  rdfs:label "axial nerve cord" ;
  rdfs:comment "Six main nerve centers lie in the arm of an octopus and are responsible for the performance of these sets of muscles. The axial nerve cord is by far the most important motor and integrative center of the arm." ;
  rdfs:subClassOf obo:BTO_0001656 .

obo:BTO_0004675 a rdfs:Class ;
  rdfs:label "regio occipitalis capitis" ;
  rdfs:comment "The surface region of the head corresponding to the outlines of the occipital bone." .

obo:BTO_0001562 a rdfs:Class ;
  rdfs:label "aerial mycelium" ;
  rdfs:comment "Hyphal elements growing above the agar surface." ;
  rdfs:subClassOf obo:BTO_0001436 .

obo:BTO_0003331 a rdfs:Class ;
  rdfs:label "culture condition:methane-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002522 a rdfs:Class ;
  rdfs:label "HBL-1 cell" ;
  rdfs:comment "An EBV-negative B-cell lymphoma cell line designated as HBL-1 was established from the pleural effusion of a patient with malignant lymphoma, diffuse, large cell." ;
  rdfs:subClassOf obo:BTO_0006365 .

obo:BTO_0004213 a rdfs:Class ;
  rdfs:label "SF-295 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0002887 a rdfs:Class ;
  rdfs:label "A-9 cell" ;
  rdfs:comment "Mouse, C3H/An; tissue: areolar and adipose; derived from NCTC clone 929." .

obo:BTO_0005264 a rdfs:Class ;
  rdfs:label "mucoepidermoid carcinoma cell" ;
  rdfs:comment "Mucoepidermoid carcinoma (MEC) is the most common primary salivary gland-type tumour of the lung. It arises from the excretory ducts of the bronchial mucosa." ;
  rdfs:subClassOf obo:BTO_0000551 .

obo:BTO_0005557 a rdfs:Class ;
  rdfs:label "BP-ALL cell" ;
  rdfs:comment "Human B-cell precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0001443 a rdfs:Class ;
  rdfs:label "culture condition:veratryl alcohol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001969 a rdfs:Class ;
  rdfs:label "697 cell" ;
  rdfs:comment "Human B cell precursor leukemia; established from the bone marrow of a 12-year-old boy with acute lymphoblastic leukemia (cALL) at relapse in 1979." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0000987 a rdfs:Class ;
  rdfs:label "palisade parenchyma" ;
  rdfs:comment "A layer of columnar cells rich in chloroplasts found beneath the upper epidermis of foliage leaves." .

obo:BTO_0005541 a rdfs:Class ;
  rdfs:label "culture condition:methylsulfone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002330 a rdfs:Class ;
  rdfs:label "lamina propria" ;
  rdfs:comment "A highly vascular layer of connective tissue under the basement membrane lining a layer of epithelium." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0002898 a rdfs:Class ;
  rdfs:label "J558L cell" ;
  rdfs:comment "Mouse, BALB/c, blood, myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0003850 a rdfs:Class ;
  rdfs:label "ALVA-31 cell" ;
  rdfs:comment "Human primary prostate tumor cell line." .

obo:BTO_0001943 a rdfs:Class ;
  rdfs:label "corneocyte" ;
  rdfs:comment "The remains of a keratinocyte; it is shed by the stratum corneum." .

obo:BTO_0004596 a rdfs:Class ;
  rdfs:label "garland cell" ;
  rdfs:comment "The garland cell of Drosophila is a nephrocyte which takes up waste products from the haemolymph." ;
  rdfs:subClassOf obo:BTO_0004597 .

obo:BTO_0000102 a rdfs:Class ;
  rdfs:label "blood clot" ;
  rdfs:comment "A semisolid gelatinous mass of coagulated blood that consists of red blood cells, white blood cells, and platelets entrapped in a fibrin network." .

obo:BTO_0002675 a rdfs:Class ;
  rdfs:label "mushroom body" ;
  rdfs:comment "The Drosophila mushroom bodies (MBs), paired brain structures composed of vertical and medial lobes, achieve their final organization at metamorphosis." .

obo:BTO_0006182 a rdfs:Class ;
  rdfs:label "venous blood cell" ;
  rdfs:comment "Blood cell found in the veins. Except in the pulmonary vein venous blood is rich in carbon dioxide and poor in oxygen." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0005635 a rdfs:Class ;
  rdfs:label "culture condition:avicel-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005054 a rdfs:Class ;
  rdfs:label "macrophage foam cell" ;
  rdfs:comment "Cells in an atheroma derived from macrophages which have engulfed low-density lipoproteins by endocytosis." .

obo:BTO_0002289 a rdfs:Class ;
  rdfs:label "GFSHR-17 cell" ;
  rdfs:comment "Immortalized cell line of primary granulosa cells, isolated from 25-day-old immature rats and transfected with SV40 DNA, Ha-as, and FSH receptor expression plasmid." ;
  rdfs:subClassOf obo:BTO_0002285 .

obo:BTO_0004146 a rdfs:Class ;
  rdfs:label "Lovo-92 cell" ;
  rdfs:comment "Colorectal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0006259 a rdfs:Class ;
  rdfs:label "pluteus" ;
  rdfs:comment "The free-swimming, bilaterally symmetrical larva of an echinoid or ophiuroid." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0003742 a rdfs:Class ;
  rdfs:label "synoviocyte" ;
  rdfs:comment "Located in the synovial membrane, there are two types. Type A cells are more numerous, have phagocytic characteristics and produce degradative enzymes. Type B cells produce synovial fluid, which lubricates the joint and nurtures nourishes the articular cartilage." .

obo:BTO_0000822 a rdfs:Class ;
  rdfs:label "culture condition:mandelate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002844 a rdfs:Class ;
  rdfs:label "breast invasive ductal carcinoma cell" ;
  rdfs:comment "Infiltrating ductal carcinoma is one of several recognized specific patterns of cancer of the breast. It is so named because it begins in the cells forming the ducts of the breast. It is the most common form of breast cancer, comprising 65-85% of all cases." ;
  rdfs:subClassOf obo:BTO_0000150 , obo:BTO_0004851 .

obo:BTO_0001222 a rdfs:Class ;
  rdfs:label "sclerenchyma" ;
  rdfs:comment "A protective or supporting tissue in higher plants composed of cells with walls thickened and often lignified." .

obo:BTO_0002183 a rdfs:Class ;
  rdfs:label "95C cell" ;
  rdfs:comment "Low metastatic human giant-cell lung carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0004967 a rdfs:Class ;
  rdfs:label "Rat-1/tsLA29 cell" ;
  rdfs:comment "Rat-1 cells expressing a thermosensitive v-Src protein." .

obo:BTO_0002128 a rdfs:Class ;
  rdfs:label "TX3868 cell" ;
  rdfs:comment "Multiform glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003677 a rdfs:Class ;
  rdfs:label "chorion frondosum" ;
  rdfs:comment "The part of the chorion where the villi persist, forming the foetal part of the placenta." .

obo:BTO_0002320 a rdfs:Class ;
  rdfs:label "cardiac muscle fiber" ;
  rdfs:comment "Cardiac muscle fibers contain one or sometimes two nuclei and myofibrils and are separated from one another by an intercalated disk; although striated, cardiac muscle fibers branch to form an interlacing network." .

obo:BTO_0000242 a rdfs:Class ;
  rdfs:label "cervical mucus" ;
  rdfs:comment "A substance produced by the cervix and endocervical glands." .

obo:RO_0003001 a rdf:Property ;
  rdfs:label "produced by" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0002258 a rdfs:Class ;
  rdfs:label "autotroph" ;
  rdfs:comment "An autotrophic organism." ;
  rdfs:subClassOf obo:BTO_0000284 , obo:BTO_0000720 , obo:BTO_0002261 .

obo:BTO_0006492 a rdfs:Class ;
  rdfs:label "palea" ;
  rdfs:comment "The upper (distal), usually smaller, of the pair of flower bracts enclosing a spikelet floret." .

obo:BTO_0002707 a rdfs:Class ;
  rdfs:label "culture condition:ornithine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003162 a rdfs:Class ;
  rdfs:label "PrSC cell" ;
  rdfs:comment "Normal prostate stromal cell line." ;
  rdfs:subClassOf obo:BTO_0001019 .

obo:BTO_0002533 a rdfs:Class ;
  rdfs:label "HBL-11 cell" ;
  rdfs:comment "Myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0001835 a rdfs:Class ;
  rdfs:label "vertebral ganglion" ;
  rdfs:comment "Any of a group of sympathetic ganglia which form two chains extending from the base of the skull to the coccyx along the sides of the spinal column." ;
  rdfs:subClassOf obo:BTO_0001333 .

obo:BTO_0003960 a rdfs:Class ;
  rdfs:label "nasopharyngeal carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000790 .

obo:BTO_0006210 a rdfs:Class ;
  rdfs:label "HMT-3522 T4-2 cell" ;
  rdfs:comment "This line is a subline that has been derived from HMT-3522. The parent line was established from a benign breast tumor of a 48 year old woman and has undergone spontaneous malignant transformation." .

obo:BTO_0006480 a rdfs:Class ;
  rdfs:label "NU-DUL-1 cell" ;
  rdfs:comment "B cell lymphoma cell line; established in 1982 from the cerebrospinal fluid of a 43-year-old Caucasian man with B-cell non-Hodgkin lymphoma (B-NHL), described at the time as undifferentiated lymphoma; assigned to ABC-like lymphoma subtype (activated B-cell)." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0001954 a rdfs:Class ;
  rdfs:label "median eminence" ;
  rdfs:comment "1. A raised area in the floor of the third ventricle of the brain produced by the infundibulum of the hypothalamus. 2. The median eminence is sometimes classified as part of the neurohypophysis. It serves as a reservoir for the hypothalamic neurohormones vasopressin, oxytocin, and the neurophysins, releasing them as needed. It originates in the embryo as an evagination from the floor of the diencephalon." .

obo:BTO_0004480 a rdfs:Class ;
  rdfs:label "nasopharynx epithelium" ;
  rdfs:comment "The nasopharynx is lined by stratified squamous epithelium and respiratory type epithelium." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0005340 a rdfs:Class ;
  rdfs:label "Ma-Mel-12 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005471 a rdfs:Class ;
  rdfs:label "RPK-59 cell" ;
  rdfs:comment "Parental and gemcitabine resistant pancreatic cancer cell line." .

obo:BTO_0000578 a rdfs:Class ;
  rdfs:label "hepatoma cell line" ;
  rdfs:comment "Hepatoma is a cancer originating in the liver, in liver cells. More often called hepatocarcinoma or hepatocellular carcinoma." .

obo:BTO_0003266 a rdfs:Class ;
  rdfs:label "HPAF-2 cell" ;
  rdfs:comment "HPAF-II is a human pancreatic adenocarcinoma cell line derived from peritoneal ascitic fluid of a 44 year old Caucasian male with primary pancreatic adenocarcinoma and metastases to the liver, diaphragm and lymph nodes." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0005941 a rdfs:Class ;
  rdfs:label "staminal nectary" ;
  rdfs:comment "There all or part of a stamen is nectariferous, either the filament or the anthers or both being involved." ;
  rdfs:subClassOf obo:BTO_0000357 .

obo:BTO_0001857 a rdfs:Class ;
  rdfs:label "visual cortex" ;
  rdfs:comment "The area of the occipital lobe of the cerebral cortex concerned with vision; it consists of the first visual area or striate cortex (Brodmann's area 17) and two other areas, the second visual area or parastriate area (Brodmann's area 18) and the third visual area or peristriate area (Brodmann's area 19)." .

obo:BTO_0003823 a rdfs:Class ;
  rdfs:label "culture condition:monoterpene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000682 a rdfs:Class ;
  rdfs:label "Koji culture" ;
  rdfs:comment "Solid-state culture of fungus (e.g. aspergillus, penicilium) on wheat bran or other cereals." ;
  rdfs:subClassOf obo:BTO_0000214 , obo:BTO_0001494 .

obo:BTO_0001630 a rdfs:Class ;
  rdfs:label "right ventricle" ;
  rdfs:comment "The lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it under low pressure into the lungs via the pulmonary artery." .

obo:BTO_0000404 a rdfs:Class ;
  rdfs:label "epidermis" ;
  rdfs:comment "The outer epithelial layer of the external integument of the animal body that is derived from the embryonic epiblast; specifically: the outer nonsensitive and nonvascular layer of the skin of a vertebrate that overlies the dermis." .

obo:BTO_0000213 a rdfs:Class ;
  rdfs:label "cecum mucosa" ;
  rdfs:subClassOf obo:BTO_0000642 .

obo:BTO_0003763 a rdfs:Class ;
  rdfs:label "SHAC cell" ;
  rdfs:comment "Human fibrosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000460 .

obo:BTO_0000509 a rdfs:Class ;
  rdfs:label "gastrodermis" ;
  rdfs:comment "The tissue lining the gut cavity of an invertebrate, which is responsible for digestion and absorption." .

obo:BTO_0001301 a rdfs:Class ;
  rdfs:label "bark" ;
  rdfs:comment "The tough exterior covering of a woody root or stem; specifically: the tissues outside the cambium that include an inner layer especially of secondary phloem and an outer layer of periderm." ;
  rdfs:subClassOf obo:BTO_0001184 .

obo:BTO_0003782 a rdfs:Class ;
  rdfs:label "rectal adenocarcinoma cell" ;
  rdfs:subClassOf obo:BTO_0000035 .

obo:BTO_0001730 a rdfs:Class ;
  rdfs:label "mesosperm" ;
  rdfs:comment "The middle layer of the coat of a seed." .

obo:BTO_0000769 a rdfs:Class ;
  rdfs:label "submandibular lymph node" ;
  rdfs:comment "The three to six nodes alongside the submandibular gland, through which lymph drains from the adjacent skin and mucous membrane." ;
  rdfs:subClassOf obo:BTO_0000784 .

obo:BTO_0002895 a rdfs:Class ;
  rdfs:label "HEPA 1-6 cell" ;
  rdfs:comment "Mouse hepatoma cell line; derived from the BW7756 tumor that arose in a C57L mouse." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0003417 a rdfs:Class ;
  rdfs:label "culture condition:rhodamine B-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000954 a rdfs:Class ;
  rdfs:label "nymph" ;
  rdfs:comment "Any of various immature insects; especially: a larva of an insect (as a grasshopper, true bug, or mayfly) with incomplete metamorphosis that differs from the imago especially in size and in its incompletely developed wings and genitalia." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0000059 a rdfs:Class ;
  rdfs:label "renal epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0001211 a rdfs:Class ;
  rdfs:label "breast epithelial cell" .

obo:BTO_0001169 a rdfs:Class ;
  rdfs:label "3T3-F442A cell" ;
  rdfs:comment "Preadipocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000746 .

obo:BTO_0004415 a rdfs:Class ;
  rdfs:label "DM-4 cell" ;
  rdfs:comment "Human melanoma cell line highly metastatic in nude mice." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005974 a rdfs:Class ;
  rdfs:label "NCI-H1048 cell" ;
  rdfs:comment "Human small cell lung cancer cell line; established in April 1985 from a pleural effusion metastasis of lung form a non-smoker human female." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0000956 a rdfs:Class ;
  rdfs:label "gut epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000282 a rdfs:Class ;
  rdfs:label "head" ;
  rdfs:comment "The upper or anterior division of the animal body that contains the brain, the chief sense organs, and the mouth." .

obo:BTO_0006017 a rdfs:Class ;
  rdfs:label "cormel" ;
  rdfs:comment "A small or secondary corm produced by a larger corm." .

obo:BTO_0002218 a rdfs:Class ;
  rdfs:label "chalazal cell" ;
  rdfs:comment "A cell of the region of an ovule that is opposite the micropyle, where the integuments and nucellus are joined." .

obo:BTO_0004995 a rdfs:Class ;
  rdfs:label "osphradium" ;
  rdfs:comment "The osphradium is the olfactory organ in certain molluscs, linked with the respiration organ. The main function of this is to test incoming water for silt and other possible food particles. It is used by all members of the Genus Conus." ;
  rdfs:subClassOf obo:BTO_0001772 .

obo:BTO_0005694 a rdfs:Class ;
  rdfs:label "stem leaf" ;
  rdfs:comment "A leaf growing from the stem of a plant, as contrasted with a basal or radical leaf." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003595 a rdfs:Class ;
  rdfs:label "knee" ;
  rdfs:comment "1: A joint in the middle part of the human leg that is the articulation between the femur, tibia, and patella; also: the part of the leg that includes this joint. 2a: The joint in the hind leg of a four-footed vertebrate that corresponds to the human knee. 2b: The carpal joint of the foreleg of a four-footed vertebrate. 2c: The tarsal joint of a bird. 2d: The joint between the femur and tibia of an insect." .

obo:BTO_0006066 a rdfs:Class ;
  rdfs:label "rHypoE-22 cell" ;
  rdfs:comment "Embryonic rat hypothalamic cell line, a neuronal cell line." ;
  rdfs:subClassOf obo:BTO_0000947 , obo:BTO_0002871 .

obo:BTO_0004855 a rdfs:Class ;
  rdfs:label "PK-8 cell" ;
  rdfs:comment "Human cell line stablished from liver metastases of pancreatic ductal adenocarcinomas." ;
  rdfs:subClassOf obo:BTO_0003883 .

obo:BTO_0006425 a rdfs:Class ;
  rdfs:label "BCIRL-HZ-AM3 cell" ;
  rdfs:comment "Ovary cell line, derived from pupal ovaries of Heliothis zea." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0004335 a rdfs:Class ;
  rdfs:label "GP6 cell" ;
  rdfs:comment "Rapamycin-resistant rat hepatic cell line." .

obo:BTO_0002486 a rdfs:Class ;
  rdfs:label "lupulin gland" ;
  rdfs:comment "Gland on unfertilised female inflorescences that produces lupulin." .

obo:BTO_0003147 a rdfs:Class ;
  rdfs:label "juvenile leaf" ;
  rdfs:comment "Distinct from adult leaves, being characterized by particular anatomical traits namely, wax and trichome distribution, presence or absence of epidermal cell types, cell wall shape and biochemistry. The first juvenile leaves are e.g. the embryonic leaves found in the grass kernel (caryopsis)." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003890 a rdfs:Class ;
  rdfs:label "JHU-013 cell" ;
  rdfs:comment "Human head and neck squamous cell carcinoma (HNSCC) cell line." .

obo:BTO_0005849 a rdfs:Class ;
  rdfs:label "KB-CP.5 cell" ;
  rdfs:comment "The independent cisplatin resistant derivative of the human epidermoid carcinoma cell line KB-3-1." .

obo:BTO_0003623 a rdfs:Class ;
  rdfs:label "uterine fluid" ;
  rdfs:subClassOf obo:BTO_0003632 .

obo:BTO_0003944 a rdfs:Class ;
  rdfs:label "Mel-Ab cell" ;
  rdfs:comment "Spontaneously immortalized mouse melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0005368 a rdfs:Class ;
  rdfs:label "HCC-1954 cell" ;
  rdfs:comment "Human breast carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0004383 a rdfs:Class ;
  rdfs:label "follicular fluid" ;
  rdfs:comment "Follicular fluid is a liquid which fills the follicular antrum and surrounds the ovum in an ovarian follicle. This fluid is rich in hyaluronic acid." .

obo:BTO_0004541 a rdfs:Class ;
  rdfs:label "connecting tubule cell" ;
  rdfs:comment "For the connecting tubules, the specific cell type is the connecting tubule cell." .

obo:BTO_0000195 a rdfs:Class ;
  rdfs:label "CACO-2 cell" ;
  rdfs:comment "Human colon adenocarcinoma cell line, established from the primary colon tumor (adenocarcinoma) of a 72-year-old Caucasian man in 1974." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0000635 a rdfs:Class ;
  rdfs:label "yellow bone marrow" ;
  rdfs:comment "Ordinary bone marrow of the kind in which the fat cells predominate." ;
  rdfs:subClassOf obo:BTO_0000141 , obo:BTO_0004850 .

obo:BTO_0006055 a rdfs:Class ;
  rdfs:label "SJNB-8 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001435 a rdfs:Class ;
  rdfs:label "arm" ;
  rdfs:comment "A human upper limb; especially: the part between the shoulder and the wrist." ;
  rdfs:subClassOf obo:BTO_0001729 .

obo:BTO_0004522 a rdfs:Class ;
  rdfs:label "Leydig cell line" ;
  rdfs:subClassOf obo:BTO_0004229 .

obo:BTO_0001195 a rdfs:Class ;
  rdfs:label "rumen epithelium" ;
  rdfs:comment "The rumen epithelium is the tissue which lines the largest of the four fore stomachs in the ruminant animal -cows and sheep. Rumen epithelial cells are important because they are responsible for the absorption of nutrients from the rumen into the blood." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000220 a rdfs:Class ;
  rdfs:label "MH1C1 cell" ;
  rdfs:comment "Rat hepatoma, a clonal strain of epithelial cells was derived from a transplantable Morris hepatoma (#7795, Buffalo strain) in 1967; cells were described to synthesize and to secrete serum albumin and serum complement component C9." ;
  rdfs:subClassOf obo:BTO_0001080 .

obo:BTO_0001717 a rdfs:Class ;
  rdfs:label "BmN4-DR cell" ;
  rdfs:comment "Silkworm, Bombyx mori, cell line derived from ovary." .

obo:BTO_0003244 a rdfs:Class ;
  rdfs:label "NCI-H1437 cell" ;
  rdfs:comment "Human lung adenocarcinoma; non-small cell lung cancer cell line; tumor stage 1; derived from metastatic site: pleural effusion; established from a 60 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002553 .

obo:BTO_0003420 a rdfs:Class ;
  rdfs:label "trophoblast cell line" .

obo:BTO_0003588 a rdfs:Class ;
  rdfs:label "HeLa-MAGI cell" ;
  rdfs:comment "CD4 positive HeLa cell line that contains an integrated HIV-1 promoter." .

obo:BTO_0000253 a rdfs:Class ;
  rdfs:label "BEN cell" ;
  rdfs:comment "Human lung carcinoma; established from the supraclavicular tumor cells-containing lymph node of a 71-year-old man with poorly differentiated carcinoma of the lung." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0005996 a rdfs:Class ;
  rdfs:label "stromal cell line" .

obo:BTO_0000516 a rdfs:Class ;
  rdfs:label "ghost" ;
  rdfs:comment "A red blood cell that has lost its hemoglobin." ;
  rdfs:subClassOf obo:BTO_0000424 .

obo:BTO_0002869 a rdfs:Class ;
  rdfs:label "transitional cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000297 .

obo:BTO_0000790 a rdfs:Class ;
  rdfs:label "pharyngeal cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000819 .

obo:BTO_0005021 a rdfs:Class ;
  rdfs:label "B6Tert-1 cell" ;
  rdfs:comment "Immortalized normal human cytotrophoblast (CT) cell line." ;
  rdfs:subClassOf obo:BTO_0005020 .

obo:BTO_0005477 a rdfs:Class ;
  rdfs:label "SUM-190PT cell" ;
  rdfs:comment "Human breast cancer cell line, derived from a poorly differentiated primary human inflammatory luminal breast carcinoma." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0005491 a rdfs:Class ;
  rdfs:label "MO-91 cell" ;
  rdfs:comment "Acute myelogenous leukemia-derived cell line." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0003480 a rdfs:Class ;
  rdfs:label "SNK-57 cell" ;
  rdfs:comment "Human bladder cancer cell line, established from a transitional cell carcinoma of a 73-year-old female." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0004410 a rdfs:Class ;
  rdfs:label "culture condition:CD8+ cell" ;
  rdfs:comment "The CD8 co-receptor is predominantly expressed on the surface of cytotoxic T cells, but can also be found on natural killer cells and dendritic cells." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0006470 a rdfs:Class ;
  rdfs:label "MDA-MB-231-Met2 cell" ;
  rdfs:comment "Cell line generated from MDA-MB-231 cells co-transfected with reporter plasmids, pGL3 control luciferase and pPUR. Puromycin-resistant clones were based upon the highest luciferase response. This clone was expanded and injected via tail vein into athymic nude mice. After allowing tumors to establish, the MDA-MB-231met2 clone was isolated from a lung metastasis." .

obo:BTO_0000355 a rdfs:Class ;
  rdfs:label "dormant eye" ;
  rdfs:comment "An undeveloped growth bud." ;
  rdfs:subClassOf obo:BTO_0000158 .

obo:BTO_0002735 a rdfs:Class ;
  rdfs:label "MKT-BR cell" ;
  rdfs:comment "Human choroidal melanoma, the most frequent primary ocular neoplasm in humans." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003098 a rdfs:Class ;
  rdfs:label "scrotum" ;
  rdfs:comment "The pouch that contains the testes and their accessory organs. It is composed of skin, the tunica dartos, the spermatic, cremasteric, and infundibuliform fasciae, and the tunica vaginalis testis." ;
  rdfs:subClassOf obo:BTO_0003097 .

obo:BTO_0000844 a rdfs:Class ;
  rdfs:label "megakaryotic cell line" ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0002909 a rdfs:Class ;
  rdfs:label "RK-13 cell" ;
  rdfs:comment "Rabbit renal epithelium cell line." ;
  rdfs:subClassOf obo:BTO_0002886 .

obo:BTO_0003548 a rdfs:Class ;
  rdfs:label "SMS-KCN cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000260 a rdfs:Class ;
  rdfs:label "ciliary body" ;
  rdfs:comment "Tissue that includes the group of muscles that act on the eye lens to produce accommodation and the arterial circle of the iris. The inner ciliary epithelium is continuous with the pigmented retinal epithelium, the outer ciliary epithelium secretes the aqueous humour." .

obo:BTO_0001323 a rdfs:Class ;
  rdfs:label "BPH-1 cell" ;
  rdfs:comment "Human benign prostate hyperplasia; prostate epithelial cells from a 68-year-old man with benign prostate hyperplasia; cells were immortalized with SV-40 large T-antigen; cells were described to express cytokeratins 8, 18, and 19 (but not 14) and to metabolize prostatic androgens." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0004422 a rdfs:Class ;
  rdfs:label "pleural cavity" ;
  rdfs:comment "The space enclosed by the pleura, which is a thin layer of tissue that covers the lungs and lines the interior wall of the chest cavity." .

obo:BTO_0006309 a rdfs:Class ;
  rdfs:label "WIF-B9 cell" ;
  rdfs:comment "Rat hepatoma/human fibroblast hybrid cell line." .

obo:BTO_0001796 a rdfs:Class ;
  rdfs:label "preoptic area" ;
  rdfs:comment "The most anterior part of the hypothalamus, lying adjacent to the lamina terminalis and superior to the optic chiasm, and comprising the lateral and medial preoptic nuclei, the supraoptic and paraventricular nuclei; and the anterior hypothalamic nucleus." .

obo:BTO_0004883 a rdfs:Class ;
  rdfs:label "cystadenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0002471 a rdfs:Class ;
  rdfs:label "culture condition:anaerobically-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005440 a rdfs:Class ;
  rdfs:label "PC-7 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0001760 a rdfs:Class ;
  rdfs:label "myotube" ;
  rdfs:comment "A developmental stage of a muscle fiber composed of a syncytium formed by fusion of myoblasts." .

obo:BTO_0005737 a rdfs:Class ;
  rdfs:label "HMVEC cell" ;
  rdfs:comment "Human microvascular endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003124 .

obo:BTO_0005798 a rdfs:Class ;
  rdfs:label "PEO-6 cell" ;
  rdfs:comment "Human ovarian adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0003117 a rdfs:Class ;
  rdfs:label "glans clitoridis" ;
  rdfs:comment "Erectile tissue at the end of the clitoris, which is continuous with the intermediate part of the vestibulovaginal bulbs." .

obo:BTO_0000965 a rdfs:Class ;
  rdfs:label "optic lobe" ;
  rdfs:comment "Either of two prominences of the midbrain concerned with vision." .

obo:BTO_0002352 a rdfs:Class ;
  rdfs:label "digitus quartis pedis" ;
  rdfs:comment "The fourth digit of the foot." ;
  rdfs:subClassOf obo:BTO_0002348 .

obo:BTO_0004588 a rdfs:Class ;
  rdfs:label "BHY cell" ;
  rdfs:comment "Oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0002162 a rdfs:Class ;
  rdfs:label "ascus" ;
  rdfs:comment "The sporangium or spore case of certain lichens and fungi, consisting of a single terminal cell." .

obo:BTO_0000206 a rdfs:Class ;
  rdfs:label "cartilage" ;
  rdfs:comment "A specialized, fibrous connective tissue, forming most of the temporary skeleton of the embryo, providing a model in which most of the bones develop, and constituting an important part of the growth mechanism of the organism. It exists in several types, the most important of which are hyaline cartilage, elastic cartilage, and fibrocartilage. Also used as a general term to designate a mass of such tissue in a particular site in the body." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0003989 a rdfs:Class ;
  rdfs:label "OV2008/C13 cell" ;
  rdfs:comment "Human epithelial ovarian cancer cell line. CDDP-resistant variant C13* was established after in vitro CDDP challenge from the Cisplatin-sensitive ovarian cystadenocarcinoma OV2008 cells." .

obo:BTO_0000293 a rdfs:Class ;
  rdfs:label "occipital lobe" ;
  rdfs:comment "This lobe is located at the back of the head and is involved in vision and reading." .

obo:BTO_0001066 a rdfs:Class ;
  rdfs:label "hippocampal pyramidal layer" ;
  rdfs:comment "A well-defined double layer of pyramidal cells in the hippocampus; their dendrites extend from the stratum oriens to the stratum moleculare." .

obo:BTO_0001014 a rdfs:Class ;
  rdfs:label "Mo-T cell" ;
  rdfs:comment "Human hairy cell leukemia T-lymphocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003681 .

obo:BTO_0005535 a rdfs:Class ;
  rdfs:label "culture condition:CD56+ cell" ;
  rdfs:comment "Normal cells that stain positively for CD56 include NK cells, activated T cells, the brain and cerebellum, and neuroendocrine tissues. Tumors that are CD56-positive are myeloma, myeloid leukemia, neuroendocrine tumors, Wilms tumor, neuroblastoma, NK/T cell lymphomas, pancreatic acinar cell carcinoma, pheochromocytoma, paraganglioma, small cell lung carcinoma, and the Ewings Sarcoma Family of Tumors." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0005805 a rdfs:Class ;
  rdfs:label "dentate gyrus IS-II cell" ;
  rdfs:comment "The Interneuron-Specific subpopulation of interneurons have axons that preferentially innervate other interneurons. The dentate gyrus IS-II class interneurons are visualized by immunostaining for Vasoactive Intestinal Polypeptide (VIP). The dendrites of dentate gyrus IS-II cells are present in all layers of dentate gyrus." .

obo:BTO_0006351 a rdfs:Class ;
  rdfs:label "glioma sphere-forming cell" ;
  rdfs:comment "Multipotent sphere-forming cells from human high grade glioma." ;
  rdfs:subClassOf obo:BTO_0000526 .

obo:BTO_0005854 a rdfs:Class ;
  rdfs:label "pronephric tubule" ;
  rdfs:comment "Any of the segmentally arranged excretory units of the pronephros in the early developing vertebrate embryo. The tubules open into the pronephric duct and communicate with the coelom through a nephrostoma. In humans and the higher vertebrates, the tubules are present only in vestigial form; in lower animals they are functional." .

obo:BTO_0004227 a rdfs:Class ;
  rdfs:label "TC-32 cell" ;
  rdfs:comment "Human Ewing's sarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0004201 .

obo:BTO_0000247 a rdfs:Class ;
  rdfs:label "shoot tip" ;
  rdfs:comment "The terminal bud (0.1 - 1.0 mm) of a plant, which consists of the apical meristem (0.05 - 0.1 mm) and the immediate surrounding leaf primordia and developing leaves and adjacent stem tissue." .

obo:BTO_0001429 a rdfs:Class ;
  rdfs:label "vascular bundle" ;
  rdfs:comment "A strand of primary conductive plant tissue consisting essentially of xylem and phloem." ;
  rdfs:subClassOf obo:BTO_0001432 .

obo:BTO_0003649 a rdfs:Class ;
  rdfs:label "anterior olfactory nucleus" ;
  rdfs:comment "A portion of the forebrain of vertebrates. It is found behind the olfactory bulb and in front of the piriform cortex (laterally) and olfactory tubercle (medially) in a region often referred to as the olfactory peduncle or retrobulbar area. The peduncle contains the anterior olfactory nucleus (AON) as well as two other much smaller regions, the tenia tecta (or dorsal hippocampal rudiment) and the dorsal peduncular cortex." .

obo:BTO_0004008 a rdfs:Class ;
  rdfs:label "medial mammillary nucleus" ;
  rdfs:comment "A component of the mammillary body." .

obo:BTO_0002023 a rdfs:Class ;
  rdfs:label "HBE-1 cell" ;
  rdfs:comment "Cultured human bronchial epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0000826 a rdfs:Class ;
  rdfs:label "mantle cavity" ;
  rdfs:comment "Within the shell is a fleshy layer of tissue called the mantle; there is a cavity (the mantle cavity) between the mantle and the body wall proper." .

obo:BTO_0001396 a rdfs:Class ;
  rdfs:label "trophosome tissue" ;
  rdfs:comment "Various chemolithotrophs have been found to live in symbiotic association with animals of the thermal vents. For example the 2-m-long tube worms lack a mouth, gut or anus but contain a modified gastrointestinal tract consisting of spongy tissue called the trophosome. Making up about 50% of the weight of the worm, trophosome tissue is loaded with sulfur granules and large numbers of symbiotic prokaryotic cells (average of 4 X 109 cells per g of trophosome tissue). Trophosome tissue also shows activity of the enzyme RubisCO and other enzymes of the Calvin cycle, the pathway by which most autotrophic organisms fix CO2 into cellular material." ;
  rdfs:subClassOf obo:BTO_0000058 .

obo:BTO_0004324 a rdfs:Class ;
  rdfs:label "osteoblast cell line" .

obo:BTO_0001036 a rdfs:Class ;
  rdfs:label "retinal cone" ;
  rdfs:comment "The other light-sensitive cell type of the retina, that, unlike retinal rods, is differentially sensitive to particular wavelengths of light, and is important for colour vision. There are three types of cones, each type sensitive to red, green or blue. Present in large numbers in the fovea." ;
  rdfs:subClassOf obo:BTO_0001060 .

obo:BTO_0000418 a rdfs:Class ;
  rdfs:label "neostriatum" ;
  rdfs:comment "The neostriatum is a compound structure comprised of the putamen and caudate nucleus. In birds, it also includes the high vocal center; it has evolved into a structure nowadays called nidopallium." .

obo:BTO_0000744 a rdfs:Class ;
  rdfs:label "lymphocytic leukemia cell" ;
  rdfs:comment "Leukemia cell of either of two types marked by an abnormal increase in the number of white blood cells (as lymphocytes) which accumulate in bone marrow, lymphoid tissue (as of the lymph nodes and spleen), and circulating blood." ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0005423 a rdfs:Class ;
  rdfs:label "MDCK-MDR1 cell" ;
  rdfs:comment "Madin-Darby canine kidney cells transfected with the human MDR1 gene." .

obo:BTO_0002071 a rdfs:Class ;
  rdfs:label "Kaposi's sarcoma cell" ;
  rdfs:comment "A multicentric, malignant neoplastic vascular proliferation characterized by bluish-red cutaneous nodules, usually on the legs, toes, or feet, that slowly increase in size and number and spread to more proximal sites. The tumors have endothelium-lined channels and vascular spaces mixed with aggregates of spindle-shaped cells; they may remain confined to skin and subcutaneous tissue, but widespread visceral involvement may occur." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0001277 a rdfs:Class ;
  rdfs:label "spermatozoon" ;
  rdfs:comment "A motile male gamete of an animal usually with rounded or elongate head and a long posterior flagellum." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0005061 a rdfs:Class ;
  rdfs:label "PC-12K cell" ;
  rdfs:comment "Rat phaeochromocytoma cell line." .

obo:BTO_0000866 a rdfs:Class ;
  rdfs:label "midgut secretion" .

obo:BTO_0005630 a rdfs:Class ;
  rdfs:label "sensory ganglion" ;
  rdfs:comment "The ganglion on the roots of the cranial nerves, containing the cell bodies of sensory neurons; The spinal ganglion." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0003724 a rdfs:Class ;
  rdfs:label "RT-112 cell" ;
  rdfs:comment "Human urinary bladder transitional cell carcinoma established from the transitional cell carcinoma histological grade G2 excised from a female patient with untreated primary urinary bladder carcinoma in 1973." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0001875 a rdfs:Class ;
  rdfs:label "FRTL-5 cell" ;
  rdfs:comment "Rat thyroid gland cell line, derived from FRTL cell line." ;
  rdfs:subClassOf obo:BTO_0001876 .

obo:BTO_0001771 a rdfs:Class ;
  rdfs:label "AN3CA cell" ;
  rdfs:comment "Endometrial carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001555 .

obo:BTO_0003562 a rdfs:Class ;
  rdfs:label "MB-49 cell" ;
  rdfs:comment "Murine transitional cell carcinoma cell line of the bladder." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0003861 a rdfs:Class ;
  rdfs:label "inflammatory cell" ;
  rdfs:comment "A cell (neutrophil, macrophage, monocyte, eosinophil, basophil) participating in the inflammatory response to a foreign substance." ;
  rdfs:subClassOf obo:BTO_0000878 .

obo:BTO_0005787 a rdfs:Class ;
  rdfs:label "skeletal muscle satellite cell" ;
  rdfs:comment "An elongated, spindle-shaped, cell that is located between the basal lamina and the plasmalemma of a muscle fiber. These cells are mostly quiescent, but upon activation they divide to produce cells that generate new muscle fibers." ;
  rdfs:subClassOf obo:BTO_0005300 .

obo:BTO_0004130 a rdfs:Class ;
  rdfs:label "IOSE cell" ;
  rdfs:comment "Nontumorigenic immortalized ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004482 .

obo:BTO_0000855 a rdfs:Class ;
  rdfs:label "lymph" ;
  rdfs:comment "A clear, watery, sometimes faintly yellowish fluid derived from body tissues that contains white blood cells and circulates throughout the lymphatic system, returning to the venous bloodstream through the thoracic duct. Lymph acts to remove bacteria and certain proteins from the tissues, transport fat from the small intestine, and supply mature lymphocytes to the blood." .

obo:BTO_0005867 a rdfs:Class ;
  rdfs:label "MDA435/LCC6MDR1 cell" ;
  rdfs:comment "MDA435/LCC6 ascites cells transduced with the cDNA of the MDR-1gene." .

obo:BTO_0004627 a rdfs:Class ;
  rdfs:label "carotid artery endothelial cell" .

obo:BTO_0001904 a rdfs:Class ;
  rdfs:label "SU.86.86 cell" ;
  rdfs:comment "Homo sapiens (human) pancreatic adenocarcinoma cell line. The line was developed from a wedge biopsy of a liver metastasis of a pancreatic ductal carcinoma." ;
  rdfs:subClassOf obo:BTO_0003883 .

obo:BTO_0003449 a rdfs:Class ;
  rdfs:label "AML-12 cell" ;
  rdfs:comment "Murine non-transformed normal liver cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0004069 a rdfs:Class ;
  rdfs:label "C26-G cell" ;
  rdfs:comment "C26-G was derived from the thymidine kinase deficient tumor Colon C26-G, which is a gemcitabine resistant variant from Colon 26." .

obo:BTO_0006093 a rdfs:Class ;
  rdfs:label "male inflorescence" ;
  rdfs:subClassOf obo:BTO_0000628 .

obo:BTO_0003301 a rdfs:Class ;
  rdfs:label "MEWO cell" ;
  rdfs:comment "Human skin malignant melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004508 a rdfs:Class ;
  rdfs:label "endothelioma cell" ;
  rdfs:comment "A tumor developing from endothelial tissue." .

obo:BTO_0005827 a rdfs:Class ;
  rdfs:label "FAA-HTC1 cell" ;
  rdfs:comment "Rat hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0002988 a rdfs:Class ;
  rdfs:label "CHO-7 cell" ;
  rdfs:comment "A subline of CHO-K1 cells." .

obo:BTO_0005093 a rdfs:Class ;
  rdfs:label "intercalated cell" ;
  rdfs:comment "Each component of the collecting duct system contains two cell types, intercalated cells and a segment-specific cell type." .

obo:BTO_0000568 a rdfs:Class ;
  rdfs:label "HeLa-S3 cell" ;
  rdfs:comment "Human cervix carcinoma cell line is a subclone of its parent HELA derived in 1955." .

obo:BTO_0004981 a rdfs:Class ;
  rdfs:label "KARPAS-422 cell" ;
  rdfs:comment "Human B cell lymphoma cell line; established from the pleural effusion of a 73-year-old woman with B cell non-Hodgkin lymphoma (intraabdominal, diffuse large cell lymphoma, refractory, terminal) in 1987." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0006126 a rdfs:Class ;
  rdfs:label "AT25ABR cell" ;
  rdfs:comment "Human lymphoblastoid cell line; established from A-T (Ataxia telangiectasia) patients by Epstein-Barr virus immortalization." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0001623 a rdfs:Class ;
  rdfs:label "fibroma cell" ;
  rdfs:comment "A cell of a tumor composed mainly of fibrous or fully developed connective tissue." ;
  rdfs:subClassOf obo:BTO_0001622 .

obo:BTO_0001577 a rdfs:Class ;
  rdfs:label "esophageal cancer cell" ;
  rdfs:comment "Tumor cell or cancer cell of the esophagus." .

obo:BTO_0002613 a rdfs:Class ;
  rdfs:label "lobopodium" ;
  rdfs:comment "A wide, blunt pseudopodium composed of both ectoplasm and endoplasm." ;
  rdfs:subClassOf obo:BTO_0002610 .

obo:BTO_0004833 a rdfs:Class ;
  rdfs:label "large cell neuroendocrine carcinoma cell" ;
  rdfs:comment "Large-cell neuroendocrine carcinoma is now recognized as an histologically high-grade non-small cell carcinoma showing histopathological features of neuroendocrine differentiation as well as immunohistochemical neuroendocrine markers." ;
  rdfs:subClassOf obo:BTO_0001407 , obo:BTO_0002058 .

obo:BTO_0004173 a rdfs:Class ;
  rdfs:label "MOLT-16 cell" ;
  rdfs:comment "Human T cell leukemia cell line; established from the peripheral blood of a 5-year-old girl with T cell acute lymphoblastic leukemia (T-ALL) at relapse in 1984." ;
  rdfs:subClassOf obo:BTO_0002504 .

obo:BTO_0004949 a rdfs:Class ;
  rdfs:label "SCMC-L10 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0000037 a rdfs:Class ;
  rdfs:label "renal cell carcinoma cell" ;
  rdfs:comment "Carcinoma cell of the renal parenchyma usually occurring in middle age or later and composed of tubular cells in varying arrangements; symptoms depend on extent of invasion." ;
  rdfs:subClassOf obo:BTO_0000604 , obo:BTO_0000680 .

obo:BTO_0001756 a rdfs:Class ;
  rdfs:label "meningioma cell" ;
  rdfs:comment "A cell of a slow-growing tumor of the meninges, occurring most often in adults." ;
  rdfs:subClassOf obo:BTO_0001573 .

obo:BTO_0000387 a rdfs:Class ;
  rdfs:label "endocardium" ;
  rdfs:comment "A thin serous membrane lining the cavities of the heart." .

obo:BTO_0002922 a rdfs:Class ;
  rdfs:label "bronchial epithelial cell" ;
  rdfs:comment "A normal cell of the bronchial epithelium." .

obo:BTO_0002761 a rdfs:Class ;
  rdfs:label "PC6-9 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0005355 a rdfs:Class ;
  rdfs:label "Grey cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0003087 a rdfs:Class ;
  rdfs:label "subiculum" ;
  rdfs:comment "The zone of transition between the parahippocampal gyrus and Ammon's horn of the hippocampus." .

obo:BTO_0006443 a rdfs:Class ;
  rdfs:label "culture condition:CD3+ cell" ;
  rdfs:comment "CD3 (cluster of differentiation 3) is a protein complex and T cell co-receptor that is involved in activating both the cytotoxic T cell (CD8+ naive T cells) and T helper cells (CD4+ naive T cells)." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0002840 a rdfs:Class ;
  rdfs:label "bile ductule" ;
  rdfs:comment "One of the fine terminal elements of the bile duct system, leaving the portal canal, and pursuing a course at the periphery of a lobule of the liver. Rarely called bile capillary." .

obo:BTO_0006102 a rdfs:Class ;
  rdfs:label "activated skeletal muscle satellite cell" ;
  rdfs:comment "A skeletal muscle cell that has become mitotically active - typically following muscle damage." ;
  rdfs:subClassOf obo:BTO_0005787 .

obo:BTO_0004162 a rdfs:Class ;
  rdfs:label "MALME-3M cell" ;
  rdfs:comment "Human malignant melanoma cell line derived from lung tissue of a 43 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005851 a rdfs:Class ;
  rdfs:label "small cell ovarian carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0001701 a rdfs:Class ;
  rdfs:label "carapace" ;
  rdfs:comment "A bony or chitinous case or shield covering the back or part of the back of an animal (as a turtle or crab)." ;
  rdfs:subClassOf obo:BTO_0000634 .

obo:BTO_0004238 a rdfs:Class ;
  rdfs:label "interstitial cell" ;
  rdfs:comment "The cells of the connective tissue of the ovary and testis (Leydig cells), which furnish the internal secretion of those structures." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0005578 a rdfs:Class ;
  rdfs:label "lymphangioleiomyomatosis disease specific cell type" ;
  rdfs:comment "Lymphangioleiomyomatosis is a rare lung disease that results in a proliferation of disorderly smooth muscle growth (leiomyoma) throughout the lungs, in the bronchioles, alveolar septa, perivascular spaces, and lymphatics, resulting in the obstruction of small airways (leading to pulmonary cyst formation and pneumothorax) and lymphatics (leading to chylous pleural effusion)." ;
  rdfs:subClassOf obo:BTO_0005577 .

obo:BTO_0003050 a rdfs:Class ;
  rdfs:label "MA-10 cell" ;
  rdfs:comment "MA-10 cells are a clonal strain of mouse Leydig tumor cells." ;
  rdfs:subClassOf obo:BTO_0001560 .

obo:BTO_0006221 a rdfs:Class ;
  rdfs:label "U-343MG cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0004450 a rdfs:Class ;
  rdfs:label "LN-444 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005405 a rdfs:Class ;
  rdfs:label "velum" ;
  rdfs:comment "The locomotory and feeding organ, found in the larval veliger stage of bivalves." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0000258 a rdfs:Class ;
  rdfs:label "choroid plexus" ;
  rdfs:comment "The choroid plexus is tissue located in the spaces inside the brain called ventricles. The choroid plexus makes the fluid that fills the ventricles and surrounds the brain and spinal cord." .

obo:BTO_0005173 a rdfs:Class ;
  rdfs:label "UMR-106-01 cell" ;
  rdfs:comment "Rat osteosarcoma osteoblastlike cell line." .

obo:BTO_0004250 a rdfs:Class ;
  rdfs:label "posterior cingulate cortex" ;
  rdfs:comment "Brain region involved with memory storage and retrieval." .

obo:BTO_0000415 a rdfs:Class ;
  rdfs:label "epithelioma cell" ;
  rdfs:comment "A neoplasm cell of epithelial origin, ranging from benign (adenoma and papilloma) to malignant (carcinoma)." .

obo:BTO_0006558 a rdfs:Class ;
  rdfs:label "small cell neuroendocrine carcinoma cell" ;
  rdfs:comment "Neuroendocrine tumours made up of small cells are called small cell neuroendocrine carcinoma while those made up of large cells are called large cell neuroendocrine carcinoma." ;
  rdfs:subClassOf obo:BTO_0001407 , obo:BTO_0002058 .

obo:BTO_0001655 a rdfs:Class ;
  rdfs:label "male cone" ;
  rdfs:comment "In conifers, the reproductive parts are housed within the cones. A conifer has two kinds of cones, the pollen, or male, cone is the small and soft. A pollen cone has many tiny sporangia that produce pollen grains. The wind usually delivers the pollen grains from the pollen cone to the seed cone, this is the yellow haze often seen in the spring in coniferous forest areas." ;
  rdfs:subClassOf obo:BTO_0000280 .

obo:BTO_0006539 a rdfs:Class ;
  rdfs:label "NCI-H3255 cell" ;
  rdfs:comment "Human non-small-cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0001043 a rdfs:Class ;
  rdfs:label "adult" ;
  rdfs:comment "Fully developed and mature: GROWN-UP." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0002794 a rdfs:Class ;
  rdfs:label "culture condition:glucose/arginine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006248 a rdfs:Class ;
  rdfs:label "dermatome" ;
  rdfs:comment "The lateral wall of a somite from which the dermis is produced." .

obo:BTO_0003754 a rdfs:Class ;
  rdfs:label "BRE-169 cell" ;
  rdfs:comment "Skin fibroblast cell line deficient in TAP1, a transporter associated with antigen processing." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0004473 a rdfs:Class ;
  rdfs:label "MC3T3-E1(C4) cell" ;
  rdfs:comment "Calvarial osteoblastic cell line." .

obo:BTO_0004289 a rdfs:Class ;
  rdfs:label "culture condition:Warrens medium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000094 a rdfs:Class ;
  rdfs:label "ascites tumor cell" .

obo:BTO_0003403 a rdfs:Class ;
  rdfs:label "hyperpallium intercalare" .

obo:BTO_0000996 a rdfs:Class ;
  rdfs:label "gametocyte" ;
  rdfs:comment "A cell from which gametes develop by meiotic division, especially a spermatocyte or an oocyte." .

obo:BTO_0006028 a rdfs:Class ;
  rdfs:label "HCC-1171 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0003521 a rdfs:Class ;
  rdfs:label "NFSC cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0000426 a rdfs:Class ;
  rdfs:label "erythroleukemia cell" ;
  rdfs:comment "Cancer cell of the blood-forming tissues in which large numbers of immature, abnormal red blood cells are found in the blood and bone marrow." ;
  rdfs:subClassOf obo:BTO_0000583 , obo:BTO_0001271 .

obo:BTO_0004769 a rdfs:Class ;
  rdfs:label "teratocyte" ;
  rdfs:comment "In Lepidoptera Pieridae, unicellular forms resulting from the embryonic membranes of parasitic Braconidae." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0005285 a rdfs:Class ;
  rdfs:label "NPD-2 cell" ;
  rdfs:comment "Niemann-Pick type A dermal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0003794 a rdfs:Class ;
  rdfs:label "chlorenchyma" ;
  rdfs:comment "Chlorophyll-containing parenchyma of plants." ;
  rdfs:subClassOf obo:BTO_0000999 .

obo:BTO_0004729 a rdfs:Class ;
  rdfs:label "peripheral blood lymphocyte" ;
  rdfs:comment "Peripheral blood lymphocytes are mature lymphocytes that circulate in the blood, rather than localising to organs, such as the spleen or lymph nodes. They comprise T cells, NK cells and B cells." ;
  rdfs:subClassOf obo:BTO_0000775 , obo:BTO_0001025 .

obo:BTO_0005434 a rdfs:Class ;
  rdfs:label "culture condition:L-alanine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002999 a rdfs:Class ;
  rdfs:label "CWR22-Rv1 cell" ;
  rdfs:comment "Human prostate carcinoma cell line; derived from a human prostate carcinoma xenograft (CWR22R) that was serially propagated in nude mice after castration-induced regression and relapse of the parental, androgen-dependent CWR22 xenograft." .

obo:BTO_0004076 a rdfs:Class ;
  rdfs:label "DHL-4 cell" ;
  rdfs:comment "Diffuse large B cell lymphoma cell line." .

obo:BTO_0006233 a rdfs:Class ;
  rdfs:label "culture condition:dimethylsulphoniopropionate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003060 a rdfs:Class ;
  rdfs:label "PC12-AC cell" ;
  rdfs:comment "A clonal derivative of the PC12 pheochromocytoma cell line." .

obo:BTO_0000596 a rdfs:Class ;
  rdfs:label "P-19 cell" ;
  rdfs:comment "Mouse embryonal carcinoma cell line, established from the teratocarcinoma induced in a C3H/He strain mouse." ;
  rdfs:subClassOf obo:BTO_0000306 , obo:BTO_0001437 .

obo:BTO_0004844 a rdfs:Class ;
  rdfs:label "NG2 cell" ;
  rdfs:comment "A significantly large population of glial cells in the mammalian central nervous system (CNS) that can be identified by the expression of the NG2 proteoglycan. They are found in the developing and mature CNS and are distinct from neurons, astrocytes, microglia, and mature oligodendrocytes. They are often referred to as oligodendrocyte progenitor cells because of their ability to differentiate into oligodendrocytes in culture." ;
  rdfs:subClassOf obo:BTO_0002606 .

obo:BTO_0006529 a rdfs:Class ;
  rdfs:label "HCC-33 cell" ;
  rdfs:comment "Human small cell lung carcinoma cell line, established from the pleural effusion of a 52-year-old man with small cell lung carcinoma." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005416 a rdfs:Class ;
  rdfs:label "MNNG/HOS cell" ;
  rdfs:comment "Human osteosarcoma cell line; derived from HOS cells by transformation with 0.01 µg/ml MNNG, a carcinogenic nitrosamine." .

obo:BTO_0004667 a rdfs:Class ;
  rdfs:label "internal iliac artery" ;
  rdfs:comment "The inner branch of the common iliac artery on either side of the body that soon breaks into several branches and supplies blood chiefly to the pelvic and gluteal areas." .

obo:BTO_0004202 a rdfs:Class ;
  rdfs:label "RD-ES cell" ;
  rdfs:comment "Human Ewing's sarcoma cell line; established from a primary osseous Ewing's sarcoma of the humerus of a 19-years-old caucasian male." ;
  rdfs:subClassOf obo:BTO_0004201 .

obo:BTO_0005568 a rdfs:Class ;
  rdfs:label "gastrointestinal mucosa" ;
  rdfs:comment "The mucous coat (membrane) lining the stomach and the intestines." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0002692 a rdfs:Class ;
  rdfs:label "enterochromaffin-like cell" ;
  rdfs:comment "Enterochromaffin-like cells or ECL cells are a type of neuroendocrine cells found in the gastric glands of the gastric mucosa beneath the epithelium, particularly in the vicinity of parietal cells. They are also considered a type of enteroendocrine cell." ;
  rdfs:subClassOf obo:BTO_0002691 .

obo:BTO_0001108 a rdfs:Class ;
  rdfs:label "mitral cell layer" .

obo:BTO_0006414 a rdfs:Class ;
  rdfs:label "OCI-LY7 cell" ;
  rdfs:comment "B cell lymphoma cell line; established from the peripheral blood sample of a 48-year-old man with B-cell non-Hodgkin lymphoma in 1984." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0005124 a rdfs:Class ;
  rdfs:label "platysma muscle" ;
  rdfs:comment "The platysma is a superficial muscle that overlaps the sternocleidomastoid." ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0002176 a rdfs:Class ;
  rdfs:label "Pro-5 cell" ;
  rdfs:comment "Cricetulus griseus (Chinese hamster) ovary cell line from a female. This line is a derivative of the original CHO cell line and is the parental line for several glycosylation mutants." .

obo:BTO_0004404 a rdfs:Class ;
  rdfs:label "BL-3 cell" ;
  rdfs:comment "Bovine lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0000156 a rdfs:Class ;
  rdfs:label "brown adipose tissue" ;
  rdfs:comment "A mammalian heat-producing tissue occurring especially in human newborns and in hibernators." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0005653 a rdfs:Class ;
  rdfs:label "culture condition:tetrathionate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003804 a rdfs:Class ;
  rdfs:label "ovarian serous adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0003803 .

obo:BTO_0001460 a rdfs:Class ;
  rdfs:label "thymic cancer cell" .

obo:BTO_0004462 a rdfs:Class ;
  rdfs:label "K-562R cell" ;
  rdfs:comment "Imatinib resistant subline of K562." .

obo:BTO_0000646 a rdfs:Class ;
  rdfs:label "left colon" ;
  rdfs:comment "The distal portion of the colon; it develops embryonically from the hindgut and functions in the storage and elimination of waste." .

obo:BTO_0002019 a rdfs:Class ;
  rdfs:label "corpus cavernosum penis" ;
  rdfs:comment "One of the columns of erectile tissue forming the dorsum and sides of the penis." .

obo:BTO_0005896 a rdfs:Class ;
  rdfs:label "UACC-1940 cell" ;
  rdfs:comment "Metastatic patient-derived human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003508 a rdfs:Class ;
  rdfs:label "RPMI-7951 cell" ;
  rdfs:comment "Human malignant melanoma cell line; established from an involved lymph node of an 18-year-old Caucasian woman with malignant melanoma in 1971." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001666 a rdfs:Class ;
  rdfs:label "hepatoblastoma cell" ;
  rdfs:comment "A malignant intrahepatic tumor occurring in infants and young children and consisting chiefly of embryonic hepatic tissue." ;
  rdfs:subClassOf obo:BTO_0000608 .

obo:BTO_0005686 a rdfs:Class ;
  rdfs:label "culture condition:heterotrophically-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004101 a rdfs:Class ;
  rdfs:label "fascicle" ;
  rdfs:comment "A bundle of thin leaves of pines." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003128 a rdfs:Class ;
  rdfs:label "brain microvascular endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0003124 , obo:BTO_0003249 .

obo:BTO_0005903 a rdfs:Class ;
  rdfs:label "DMS-273 cell" ;
  rdfs:comment "DMS 273 was initiated in 1978 from the pleural fluid specimen from a 50 year old female patient with small cell carcinoma of the lung." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0003230 a rdfs:Class ;
  rdfs:label "RL cell" ;
  rdfs:comment "Human non-Hodgkin B cell lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0002904 .

obo:BTO_0002664 a rdfs:Class ;
  rdfs:label "HTAU cell" ;
  rdfs:comment "Immortalized embryonic brain cortex cell line overexpressing the human tau protein." ;
  rdfs:subClassOf obo:BTO_0002659 .

obo:BTO_0000628 a rdfs:Class ;
  rdfs:label "inflorescence" ;
  rdfs:comment "A flower cluster with a definite arrangement." .

obo:BTO_0004630 a rdfs:Class ;
  rdfs:label "middle midgut" .

obo:BTO_0002685 a rdfs:Class ;
  rdfs:label "EOMA cell" ;
  rdfs:comment "Mus musculus hemangioendothelioma cell line. The EOMA cell line was originally derived in 1980 from a mixed hemangioendothelioma arising in an adult mouse." ;
  rdfs:subClassOf obo:BTO_0002652 .

obo:BTO_0004573 a rdfs:Class ;
  rdfs:label "BOSC-23 cell" ;
  rdfs:comment "Human embryonic kidney cell line." .

obo:BTO_0006340 a rdfs:Class ;
  rdfs:label "excretory duct cell" ;
  rdfs:comment "The duct cell surrounds the duct from its origin to the boundary of the pore cell and is located just anterior and lateral (left or right) to the excretory cell body." .

obo:BTO_0000484 a rdfs:Class ;
  rdfs:label "frontal lobe" ;
  rdfs:comment "Front part of the brain, involved in planning, organizing, problem solving, selective attention, personality and a variety of higher cognitive functions including behavior and emotions." .

obo:BTO_0005398 a rdfs:Class ;
  rdfs:label "PaTuO-2 cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0003765 a rdfs:Class ;
  rdfs:label "dermatofibroma cell line" .

obo:BTO_0004409 a rdfs:Class ;
  rdfs:label "culture condition:CD68+ cell" ;
  rdfs:comment "CD68 is used to identify macrophages and giant cells." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0001190 a rdfs:Class ;
  rdfs:label "root nodule" ;
  rdfs:comment "Gall-like structures on the roots of legumes that contain symbiotic nitrogen-fixing bacteria." .

obo:BTO_0003260 a rdfs:Class ;
  rdfs:label "Col-6 cell" ;
  rdfs:comment "Human colonic adenocarcinoma cell line." .

obo:BTO_0002814 a rdfs:Class ;
  rdfs:label "chorda gubernaculum" ;
  rdfs:comment "A portion of the gubernaculum testis and round ligament that develops in the body wall of the embryo." .

obo:BTO_0002244 a rdfs:Class ;
  rdfs:label "flower stalk" ;
  rdfs:comment "A slender stalk supporting or connecting another plant part, such as a leaf or flower." .

obo:BTO_0001328 a rdfs:Class ;
  rdfs:label "calvarium" ;
  rdfs:comment "An incomplete skull:especially: the portion of a skull including the braincase and excluding the lower jaw or lower jaw and facial portion." .

obo:BTO_0001497 a rdfs:Class ;
  rdfs:label "IEC-6 cell" ;
  rdfs:comment "Rat normal small intestine cell line. Normal rat epithelial cells from the small intestine; cells were described to synthesize fibronectin and collagen." ;
  rdfs:subClassOf obo:BTO_0001537 .

obo:BTO_0005647 a rdfs:Class ;
  rdfs:label "culture condition:glycine betaine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005956 a rdfs:Class ;
  rdfs:label "UMNSAH/DF-1 cell" ;
  rdfs:comment "Chicken, gallus gallus, embryonic fibroblast cell line. A spontaneously immortalized chicken cell line derived from 10 day old East Lansing Line eggs." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0006518 a rdfs:Class ;
  rdfs:label "storage parenchyma" ;
  rdfs:comment "Storage parenchyma is specialized as large water storage tissue in many succulent and xerophytic plants with greatly expanded vacuole. The cells are chlorophyll-free and thin-walled. In potatoes tuber and grain for example, the parenchyma acts as a special storage tissue to store food material." ;
  rdfs:subClassOf obo:BTO_0000999 .

obo:BTO_0003812 a rdfs:Class ;
  rdfs:label "culture condition:tetrahydrofurfuryl alcohol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005210 a rdfs:Class ;
  rdfs:label "syntrophic cell culture" ;
  rdfs:comment "A biological relationship in which microorganisms of two different species or strains are mutually dependent on one another for nutritional requirements." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0000044 a rdfs:Class ;
  rdfs:label "tear gland" ;
  rdfs:comment "An acinous gland that is about the size and shape of an almond, secretes tears, and is situated laterally and superiorly to the bulb of the eye in a shallow depression on the inner surface of the frontal bone." ;
  rdfs:subClassOf obo:BTO_0000431 .

obo:BTO_0004720 a rdfs:Class ;
  rdfs:label "mural cell" ;
  rdfs:comment "A nonendothelial cell enclosed within the basement membrane of retinal capillaries." .

obo:BTO_0001471 a rdfs:Class ;
  rdfs:label "yolk sac" ;
  rdfs:comment "A membranous sac that is attached to an embryo and encloses food yolk, that is continuous in most forms through the yolk stalk with the intestinal cavity of the embryo, that being abundantly supplied with blood vessels is throughout embryonic life and in some forms later the chief organ of nutrition, and that in placental mammals is nearly vestigial and functions chiefly prior to the elaboration of the placenta." .

obo:BTO_0006508 a rdfs:Class ;
  rdfs:label "TPC-1 cell" ;
  rdfs:comment "Human papillary thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003210 .

obo:BTO_0006389 a rdfs:Class ;
  rdfs:label "enteric neuron" ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0004260 a rdfs:Class ;
  rdfs:label "Askin's tumor cell" ;
  rdfs:comment "Peripheral neuroepithelioma of the chest wall." ;
  rdfs:subClassOf obo:BTO_0004255 .

obo:BTO_0003367 a rdfs:Class ;
  rdfs:label "daphnid" ;
  rdfs:comment "Any water flea, especially those in the genus Daphnia." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0004042 a rdfs:Class ;
  rdfs:label "subcutaneous adipose tissue" ;
  rdfs:comment "Adipose tissue which is found underneath the skin." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0004349 a rdfs:Class ;
  rdfs:label "laterodorsal thalamic nucleus" ;
  rdfs:comment "A narrow strip of cell groups on the dorsomedial surface of the thalamus. It includes the lateral dorsal nucleus, lateral posterior nucleus, and the PULVINAR." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0003776 a rdfs:Class ;
  rdfs:label "urinary bladder squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000792 , obo:BTO_0002024 .

obo:BTO_0001785 a rdfs:Class ;
  rdfs:label "branchial arch" ;
  rdfs:comment "One of a series of bony or cartilaginous arches that develop in the walls of the mouth cavity and pharynx of a vertebrate embryo, consist typically of a curved segmented bar or rod on each side meeting the contralateral bar or rod at the ventral end, and correspond to the gill arches of fishes and amphibians." .

obo:BTO_0004551 a rdfs:Class ;
  rdfs:label "WT-100 cell" ;
  rdfs:comment "Human B-lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0006175 a rdfs:Class ;
  rdfs:label "inferior temporal gyrus" ;
  rdfs:comment "The inferior-most of the three longitudinal gyri that cover the lateral surface of the temporal lobe." ;
  rdfs:subClassOf obo:BTO_0006178 .

obo:BTO_0002529 a rdfs:Class ;
  rdfs:label "HBL-8 cell" ;
  rdfs:comment "Human Burkitt's lymphoma cell line, negative for Epstein-Barr virus genome." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0006266 a rdfs:Class ;
  rdfs:label "subfornical organ" ;
  rdfs:comment "A small tubercle in the floor of the third ventricle. The intercolumnar tubercle. One of the circumventricular organs. It has fenestrated capillaries and is outside the blood-brain barrier. It is thought to be a chemoreceptor zone involved in cardiovascular regulation." ;
  rdfs:subClassOf obo:BTO_0006267 .

obo:BTO_0003815 a rdfs:Class ;
  rdfs:label "culture condition:2-butanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005624 a rdfs:Class ;
  rdfs:label "NE-4C cell" ;
  rdfs:comment "The neuroepithelial cell line was established from the cerebral vesicles of 9-day-old mouse embryos lacking the functional p53 genes." ;
  rdfs:subClassOf obo:BTO_0005623 .

obo:BTO_0005914 a rdfs:Class ;
  rdfs:label "MEC-2 cell" ;
  rdfs:comment "Human chronic B cell leukemia cell line; established in 1993 from the peripheral blood of a 61-year-old Caucasian man with chronic B cell leukemia; serial sister cell line of MEC-1." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0003079 a rdfs:Class ;
  rdfs:label "RAMOS (RA.1) cell" ;
  rdfs:comment "Human Caucasian Burkitt's lymphoma cell line. This cell line is EBV-genome-negative but expresses EBV receptors and can be converted into a permanent EBV-positive line." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0003359 a rdfs:Class ;
  rdfs:label "neointima" ;
  rdfs:comment "A new or thickened layer of arterial intima formed especially on a prosthesis or in atherosclerosis by migration and proliferation of cells from the media." .

obo:BTO_0001025 a rdfs:Class ;
  rdfs:label "peripheral blood mononuclear cell" ;
  rdfs:comment "A mixture of monocytes and lymphocytes; blood leucocytes from which granulocytes have been separated and removed." ;
  rdfs:subClassOf obo:BTO_0000878 .

obo:BTO_0005151 a rdfs:Class ;
  rdfs:label "anterior horn" ;
  rdfs:comment "One of the hornlike projections of gray matter into the white matter of the spinal cord. The anterior horn contains efferent fibers innervating skeletal muscle tissue." ;
  rdfs:subClassOf obo:BTO_0000823 .

obo:BTO_0003151 a rdfs:Class ;
  rdfs:label "HPAEC cell" ;
  rdfs:comment "Human pulmonary artery endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003150 .

obo:BTO_0000145 a rdfs:Class ;
  rdfs:label "brain myelin" .

obo:BTO_0001745 a rdfs:Class ;
  rdfs:label "renal inner medulla" ;
  rdfs:comment "The inner part of the substance of the kidney, composed chiefly of collecting tubule elements, loops of Henle, and vasa recta, organized grossly into pyramids." .

obo:BTO_0001677 a rdfs:Class ;
  rdfs:label "SCHNEIDER-2 cell" ;
  rdfs:comment "Insect - fruitfly (Drosophila melanogaster) cell line, established from the late embryo of a Drosophila melanogaster (fruitfly) in 1972; originally the cells were diploid with 5-10% XY, currently the cell line has only XX cells that are now 60-80% tetraploid." ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0002746 a rdfs:Class ;
  rdfs:label "PC-1.0 cell" ;
  rdfs:comment "Hamster pancreatic cancer cell line." .

obo:BTO_0005140 a rdfs:Class ;
  rdfs:label "H273 cell" ;
  rdfs:comment "H1299 cells were transfected with pCMV-p53H273 plasmid. The H273 differs from the wild-type p53 by an arginine to histidine conversion at nucleotides 273. Clones were selected in the presence of G418 for 4 weeks and screened for p53 expression. Mutant p53 H273 has been reported to have strong transactivating activity." .

obo:BTO_0006260 a rdfs:Class ;
  rdfs:label "GM02784 cell" ;
  rdfs:comment "Human fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0003406 a rdfs:Class ;
  rdfs:label "mesopallium dorsale" .

obo:BTO_0003178 a rdfs:Class ;
  rdfs:label "biceps" ;
  rdfs:comment "A muscle having two heads: as a: the large flexor muscle of the front of the upper arm b: the large flexor muscle of the back of the upper leg." ;
  rdfs:subClassOf obo:BTO_0001257 , obo:BTO_0003179 .

obo:BTO_0006290 a rdfs:Class ;
  rdfs:label "UM-UC-2 cell" ;
  rdfs:comment "Human urinary bladder transitional cell carcinoma cell line, but shown to be a derivative of T-24." .

obo:BTO_0000325 a rdfs:Class ;
  rdfs:label "culture condition:D-galactose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001634 a rdfs:Class ;
  rdfs:label "leptomeninx" ;
  rdfs:comment "The pia mater and the arachnoid considered together as investing the brain and spinal cord." .

obo:BTO_0001384 a rdfs:Class ;
  rdfs:label "culture condition:tissue culture" ;
  rdfs:comment "Growing plant or animal tissues outside of the body, as in a nutrient medium in a laboratory; similar to cell culture, but cells are maintained in their structured, tissue form." ;
  rdfs:subClassOf obo:BTO_0000216 .

obo:BTO_0005979 a rdfs:Class ;
  rdfs:label "NCI-H740 cell" ;
  rdfs:comment "Human classic small cell lung cancer cell line; established in June 1984 from a stage E carcinoma of a 63 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0000178 a rdfs:Class ;
  rdfs:label "adenoma cell" ;
  rdfs:comment "A benign epithelial tumor cell in which the cells form recognizable glandular structures or in which the cells are clearly derived from glandular epithelium." ;
  rdfs:subClassOf obo:BTO_0000415 .

obo:BTO_0003013 a rdfs:Class ;
  rdfs:label "NCI-H661 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004206 a rdfs:Class ;
  rdfs:label "RPMI-8866 cell" ;
  rdfs:comment "Human B lymphoid cell line, established from the peripheral blood of a 51-year-old American woman with chronic myelogenous leukemia in May 1966." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0006238 a rdfs:Class ;
  rdfs:label "interfascicular cambium" ;
  rdfs:comment "The vascular cambium of a plant that develops between vascular bundles. A portion of vascular cambium that develops from cells in an interfascicular region that is part of a shoot system." ;
  rdfs:subClassOf obo:BTO_0004502 .

obo:BTO_0000048 a rdfs:Class ;
  rdfs:label "zona glomerulosa" ;
  rdfs:comment "The outermost of the three layers of the adrenal cortex that consists of round masses of granular epithelial cells that stain deeply." .

obo:BTO_0002858 a rdfs:Class ;
  rdfs:label "cerebral subcortex" ;
  rdfs:comment "That part of the brain substance underlying the cerebral cortex." .

obo:BTO_0005891 a rdfs:Class ;
  rdfs:label "sporocyst" ;
  rdfs:comment "1. A larval form of digenetic trematode (fluke) that develops in the body of its molluscan intermediate host, usually a snail; the sporocyst forms a simple saclike structure with germinal cells that bud off internally and develop into other larval types that continue this process of larval multiplication (considered to be a form of polyembryony). 2. A secondary cyst that develops within the oocyst of Coccidia, a group of sporozoans that includes many of the most important disease agents of domestic animals and fowl; the sporocyst develops from a sporoblast and produces within itself one or several sporozoites, the infective agents for infection and multiplication in the next host." ;
  rdfs:subClassOf obo:BTO_0000707 , obo:BTO_0001773 .

obo:BTO_0005939 a rdfs:Class ;
  rdfs:label "gynoecial nectary" ;
  rdfs:comment "There, floral nectar is secreted from some part of the ovary tissue." ;
  rdfs:subClassOf obo:BTO_0000357 .

obo:BTO_0005006 a rdfs:Class ;
  rdfs:label "253J-P cell" ;
  rdfs:comment "Human transitional cell carcinoma cell line, poorly tumorigenic and nonmetastatic." .

obo:BTO_0001418 a rdfs:Class ;
  rdfs:label "urinary bladder" ;
  rdfs:comment "A membranous sac in many vertebrates that serves for the temporary retention of urine and discharges by the urethra." ;
  rdfs:subClassOf obo:BTO_0000123 .

obo:BTO_0004112 a rdfs:Class ;
  rdfs:label "GBC-SD cell" ;
  rdfs:comment "Human gallbladder carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003236 .

obo:BTO_0002285 a rdfs:Class ;
  rdfs:label "granulosa cell line" ;
  rdfs:subClassOf obo:BTO_0002290 .

obo:BTO_0004098 a rdfs:Class ;
  rdfs:label "renal clear cell" ;
  rdfs:comment "Cell with empty-appearing cytoplasm; seen normally in the sweat glands, the parathyroid glands, the collecting tubules of the kidneys, and the epididymis; they also appear in some types of cancer." .

obo:BTO_0005731 a rdfs:Class ;
  rdfs:label "culture condition:dichloromethane-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000236 a rdfs:Class ;
  rdfs:label "cerebral white matter" ;
  rdfs:comment "Whitish nerve tissue, especially of the brain and spinal cord, consisting chiefly of myelinated nerve fibers." .

obo:BTO_0000519 a rdfs:Class ;
  rdfs:label "gingiva" ;
  rdfs:comment "The tissue that surrounds the necks of teeth and covers the alveolar parts of the jaws; broadly: the alveolar portion of a jaw with its enveloping soft tissues." .

obo:BTO_0002977 a rdfs:Class ;
  rdfs:label "exocrine glandular secretion" ;
  rdfs:comment "Secretion discharged by an exocrine gland to an external or internal surface of the body." ;
  rdfs:subClassOf obo:BTO_0002979 .

obo:BTO_0005412 a rdfs:Class ;
  rdfs:label "culture condition:trimethylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006255 a rdfs:Class ;
  rdfs:label "sclerotome" ;
  rdfs:comment "The lower, medioventral part of the somite, that breaks up into mesenchyme, which contributes to the axial skeleton of the embryo, that is the vertebral column, ribs, and much of the skull." .

obo:BTO_0001915 a rdfs:Class ;
  rdfs:label "M5076 cell" ;
  rdfs:comment "Mouse, C57BL/6, sarcoma, reticulum cell line." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0001774 a rdfs:Class ;
  rdfs:label "oral cancer cell" ;
  rdfs:comment "Cancer within the mouth." .

obo:BTO_0001864 a rdfs:Class ;
  rdfs:label "AsPC-1 cell" ;
  rdfs:comment "Human caucasian pancreas adenocarcinoma cell line, established from a 62 years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0003218 a rdfs:Class ;
  rdfs:label "U-343MG-A cell" ;
  rdfs:comment "Human glioma cell line." .

obo:BTO_0002757 a rdfs:Class ;
  rdfs:label "PC6-5 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0003032 a rdfs:Class ;
  rdfs:label "HEK-293F cell" ;
  rdfs:comment "The 293-F cell line is derived from the 293 cell line." .

obo:BTO_0005319 a rdfs:Class ;
  rdfs:label "embryonic germ cell" ;
  rdfs:comment "At the early fetal stage of development, the cells that later give rise to sperm or eggs cells. These cells are pluripotent." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0005618 a rdfs:Class ;
  rdfs:label "subpharyngeal region" ;
  rdfs:comment "Region beneath the pharynx." .

obo:BTO_0005376 a rdfs:Class ;
  rdfs:label "P-93AF cell" ;
  rdfs:comment "Taxus cuspidata suspension culture cell line." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0001706 a rdfs:Class ;
  rdfs:label "cnidoblast" ;
  rdfs:comment "A cell in the epidermis of coelenterates in which a nematocyst is developed." ;
  rdfs:subClassOf obo:BTO_0001470 .

obo:BTO_0002631 a rdfs:Class ;
  rdfs:label "glume" ;
  rdfs:comment "One of the two chaffy basal bracts of a grass spikelet." .

obo:BTO_0005046 a rdfs:Class ;
  rdfs:label "LHCN-M2 cell" ;
  rdfs:comment "Human myoblast cell line." ;
  rdfs:subClassOf obo:BTO_0000256 .

obo:BTO_0001189 a rdfs:Class ;
  rdfs:label "FAZA cell" ;
  rdfs:comment "Rat hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0003940 a rdfs:Class ;
  rdfs:label "macula densa" ;
  rdfs:comment "A closely packed group of densely staining cells in the distal tubular epithelium of a nephron, in direct apposition to the juxtaglomerular cells; they may function as either chemoreceptors or as baroreceptors feeding information to the juxtaglomerular cells." .

obo:BTO_0005297 a rdfs:Class ;
  rdfs:label "MEG-01S cell" ;
  rdfs:comment "Suspension culture adapted subline of MEG-01. Chronic megakaryoblastic leukemia cell line." .

obo:BTO_0000545 a rdfs:Class ;
  rdfs:label "gut" ;
  rdfs:comment "1: The alimentary canal or a portion thereof, especially the intestine or stomach. 2: The embryonic digestive tube, consisting of the foregut, the midgut, and the hindgut." .

obo:BTO_0001525 a rdfs:Class ;
  rdfs:label "WIL2-S cell" ;
  rdfs:comment "Spleen; B lymphoblast; hereditary spherocytosis cell line, established from a 5 year old caucasian male. This is a HAT sensitive variant of the WIL2 human B cell line." .

obo:BTO_0002478 a rdfs:Class ;
  rdfs:label "cervical epithelial cell" .

obo:BTO_0004641 a rdfs:Class ;
  rdfs:label "tracheal cell line" .

obo:BTO_0000377 a rdfs:Class ;
  rdfs:label "elementary body" ;
  rdfs:comment "The infectious form of chlamydiaceae. Infection occurs when the small, rigid-walled extracellular form (elementary body) enters the cell and changes into a larger, thin-walled form (initial body) that divides by fission. The daughter cells thus formed reorganize and condense to become elementary bodies that then infect other cells. The organisms are parasites of humans and other vertebrates, capable of producing a variety of diseases. They have also been found in arthropods. The family contains the genus Chlamydia." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0005438 a rdfs:Class ;
  rdfs:label "HO-8910 cell" ;
  rdfs:comment "Human epithelial ovarian cancer cell line." .

obo:BTO_0003386 a rdfs:Class ;
  rdfs:label "hypoglossal nerve" ;
  rdfs:comment "The hypoglossal nerve enervates the muscles of the tongue." ;
  rdfs:subClassOf obo:BTO_0001104 .

obo:BTO_0003703 a rdfs:Class ;
  rdfs:label "rheumatoid arthritis disease specific fibroblast-like synoviocyte" ;
  rdfs:comment "Fibroblast-like synoviocyte (FLS) cultured from rheumatoid arthritis (RA) synovial tissues." ;
  rdfs:subClassOf obo:BTO_0004060 .

obo:BTO_0004050 a rdfs:Class ;
  rdfs:label "BEL-7402 cell" ;
  rdfs:comment "Human liver cancer cell line." .

obo:BTO_0004992 a rdfs:Class ;
  rdfs:label "UM-UC-10 cell" ;
  rdfs:comment "Human transitional cell carcinoma cell line of the bladder." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0002188 a rdfs:Class ;
  rdfs:label "culture condition:alpha-pinene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003093 a rdfs:Class ;
  rdfs:label "cardiofibroblast" ;
  rdfs:comment "A cardiac fibroblast is a connective tissue cell in the heart which secretes an extracellular matrix rich in collagen and other macromolecules." ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0006164 a rdfs:Class ;
  rdfs:label "cancer-infiltrating inflammatory cell" ;
  rdfs:subClassOf obo:BTO_0003861 .

obo:BTO_0006522 a rdfs:Class ;
  rdfs:label "trochophore" ;
  rdfs:comment "A trochophore is a type of free-swimming planktonic marine larva with several bands of cilia." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0002154 a rdfs:Class ;
  rdfs:label "epibranchial" ;
  rdfs:comment "A deep cartilage bone on the upper part of the gill arch below the uppermost element, the pharyngobranchial. May occur on arches 1, 2, 3, 4 and be covered with toothed pads." ;
  rdfs:subClassOf obo:BTO_0002152 .

obo:BTO_0001184 a rdfs:Class ;
  rdfs:label "rind" ;
  rdfs:comment "A tough outer covering such as bark or the skin of some fruits." .

obo:BTO_0003532 a rdfs:Class ;
  rdfs:label "A7 cell" ;
  rdfs:comment "Immortalized murine hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0001619 a rdfs:Class ;
  rdfs:label "skin fibroblast cell line" ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0006201 a rdfs:Class ;
  rdfs:label "3D4/21 cell" ;
  rdfs:comment "Sus scrofa lung alveolar macrophage cell line." ;
  rdfs:subClassOf obo:BTO_0002889 .

obo:BTO_0002803 a rdfs:Class ;
  rdfs:label "BLM cell" ;
  rdfs:comment "The human melanoma cell line BLM has been established from surgically removed melanoma metastases." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004484 a rdfs:Class ;
  rdfs:label "ovarian surface epithelial cell" .

obo:BTO_0006119 a rdfs:Class ;
  rdfs:label "villous cytotrophoblast" ;
  rdfs:comment "An undifferentiated cytotrophoblastic stem cell will differentiate into a villous cytotrophoblast, which is what constitutes primary chorionic villi, and will eventually coalesce into villous syncytiotrophoblast." ;
  rdfs:subClassOf obo:BTO_0000322 .

obo:BTO_0001604 a rdfs:Class ;
  rdfs:label "eyestalk" ;
  rdfs:comment "One of the movable peduncles bearing an eye at the tip in a decapod crustacean." .

obo:BTO_0005660 a rdfs:Class ;
  rdfs:label "corolla tube" ;
  rdfs:comment "The tubular part of the corolla." .

obo:BTO_0000878 a rdfs:Class ;
  rdfs:label "mononuclear cell" ;
  rdfs:comment "A cell having only one nucleus, especially: MONOCYTE." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0000366 a rdfs:Class ;
  rdfs:label "duodenal juice" .

obo:BTO_0001379 a rdfs:Class ;
  rdfs:label "thyroid gland" ;
  rdfs:comment "A two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, and producing various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0000719 a rdfs:Class ;
  rdfs:label "leaf lamina" ;
  rdfs:comment "The blade or flat part of a leaf." .

obo:BTO_0000005 a rdfs:Class ;
  rdfs:label "culture condition:2-aminobenzenesulfonate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003901 a rdfs:Class ;
  rdfs:label "745A cell" ;
  rdfs:comment "Murine erythroleukemia cell line." .

obo:BTO_0002058 a rdfs:Class ;
  rdfs:label "non-small cell lung cancer cell" ;
  rdfs:comment "A general term comprising all lung carcinomas except small cell carcinoma, and including adenocarcinoma of the lung, large cell carcinoma, and squamous cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0002061 .

obo:BTO_0004017 a rdfs:Class ;
  rdfs:label "HCFMK-1 cell" ;
  rdfs:comment "Human floor of the mouth squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0005232 a rdfs:Class ;
  rdfs:label "culture condition:n-decane-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002042 a rdfs:Class ;
  rdfs:label "dendritic cell" ;
  rdfs:comment "A special type of cell that is a key regulator of the immune system, acting as a professional antigen-presenting cell, APC, capable of activating naive T cells and stimulating the growth and differentiation of B cells. Dendritic cells are found, for example, in the lymph nodes and spleen. As an APC, a dendritic cell can retain antigen for long periods on its surface, present the antigen to a T or B cell and so influence their behavior." .

obo:BTO_0001055 a rdfs:Class ;
  rdfs:label "ovarian epithelial cell" .

obo:BTO_0000884 a rdfs:Class ;
  rdfs:label "molting fluid" ;
  rdfs:comment "Arthropods (e.g., insects and crustaceans) must molt their exoskeletons periodically in order to grow; in this process the inner layers of the old cuticle are digested by a molting fluid secreted by the epidermal cells, the animal emerges from the old covering, and the new cuticle hardens." .

obo:BTO_0005308 a rdfs:Class ;
  rdfs:label "A-716 cell" ;
  rdfs:comment "Human non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0002194 a rdfs:Class ;
  rdfs:label "NHK cell" ;
  rdfs:comment "Normal human keratinocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000375 .

obo:BTO_0001306 a rdfs:Class ;
  rdfs:label "stolon" ;
  rdfs:comment "A horizontal branch from the base of a plant that produces new plants from buds at its tip or nodes (as in the strawberry)." ;
  rdfs:subClassOf obo:BTO_0000148 .

obo:BTO_0004826 a rdfs:Class ;
  rdfs:label "HFF2/T cell" ;
  rdfs:comment "Human foreskin fibroblasts immortalized by human telomerase reverse-transcriptase." ;
  rdfs:subClassOf obo:BTO_0002245 .

obo:BTO_0000649 a rdfs:Class ;
  rdfs:label "right colon" ;
  rdfs:comment "The proximal portion of the colon, extending from the ileocecal valve usually to a point proximal to the left colic flexure; it develops embryonically from the terminal portion of the midgut and functions in absorption." .

obo:BTO_0003662 a rdfs:Class ;
  rdfs:label "nucleus recessus lateralis" ;
  rdfs:comment "The fish catecholamines originate in two large aggregations of neurons: the nucleus recessus lateralis (NRL) and the nucleus recessus posterioris (NRP). The nuclei were found in the hypothalamus of numerous species, e.g., the gold fish, eel, and roach." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0000016 a rdfs:Class ;
  rdfs:label "A-172 cell" ;
  rdfs:comment "Human brain glioblastoma cell line. Established from a 53 year old man." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0002305 a rdfs:Class ;
  rdfs:label "scolex" ;
  rdfs:comment "The anterior organ of a tapeworm used for attachment to host tissues." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0000275 a rdfs:Class ;
  rdfs:label "colonocyte" ;
  rdfs:comment "An epithelial cell of the colon." .

obo:BTO_0005629 a rdfs:Class ;
  rdfs:label "satellite glial cell" ;
  rdfs:comment "Satellite glial cells are the principle glial cells found in the peripheral nervous system, specifically in sensory, sympathetic, and parasympathetic ganglia. They compose the thin cellular sheaths that surround the individual neurons in these ganglia." ;
  rdfs:subClassOf obo:BTO_0002606 .

obo:BTO_0005888 a rdfs:Class ;
  rdfs:label "UW-479 cell" ;
  rdfs:comment "Human paediatric glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0005103 a rdfs:Class ;
  rdfs:label "NB-1 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0006033 a rdfs:Class ;
  rdfs:label "Kenyon cell" ;
  rdfs:comment "The intrinsic neurons of the mushroom body. They are produced from precursors known as neuroblasts." ;
  rdfs:subClassOf obo:BTO_0002675 .

obo:BTO_0002927 a rdfs:Class ;
  rdfs:label "tracheobronchial epithelial cell" ;
  rdfs:comment "Normal tracheo-bronchial epithelial cell." .

obo:BTO_0004500 a rdfs:Class ;
  rdfs:label "R1 cell" ;
  rdfs:comment "Mouse embryonic stem cell line; established from a 3.5 day blastocyst produced by crossing two 129 substrains, 129S1/SvImJ and 129X1/SvJ." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0001173 a rdfs:Class ;
  rdfs:label "reticulocyte" ;
  rdfs:comment "An immature red blood cell that appears especially during regeneration of lost blood and has a fine basophilic reticulum formed of ribosomal remains." ;
  rdfs:subClassOf obo:BTO_0000424 , obo:BTO_0001441 .

obo:BTO_0003335 a rdfs:Class ;
  rdfs:label "EBV-LCL cell" ;
  rdfs:comment "Human B-lymphoblastoid cell line transformed by Epstein-Barr (EBV-LCLs) Virus." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0003139 a rdfs:Class ;
  rdfs:label "UM-SCC-12 cell" ;
  rdfs:comment "Head and neck squamous cell carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0001818 a rdfs:Class ;
  rdfs:label "stomach smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0002270 a rdfs:Class ;
  rdfs:label "MCF-7/2a cell" ;
  rdfs:comment "Mimosine-resistant cell line." ;
  rdfs:subClassOf obo:BTO_0000093 .

obo:BTO_0004581 a rdfs:Class ;
  rdfs:label "10/9CRC1 cell" ;
  rdfs:comment "Mouse pheochromocytoma cell line." ;
  rdfs:subClassOf obo:BTO_0000201 .

obo:BTO_0006148 a rdfs:Class ;
  rdfs:label "mesenchymal glioma stem cell" ;
  rdfs:subClassOf obo:BTO_0003298 , obo:BTO_0006155 .

obo:BTO_0001290 a rdfs:Class ;
  rdfs:label "sporocarp" ;
  rdfs:comment "A structure (as in red algae, fungi, or mosses) in or on which spores are produced." ;
  rdfs:subClassOf obo:BTO_0000468 .

obo:BTO_0002341 a rdfs:Class ;
  rdfs:label "leaf collar" ;
  rdfs:comment "A thin band of intercalary meristematic tissue at the junction of the leaf blade (lamina) and the leaf sheath found in grasses." .

obo:BTO_0002510 a rdfs:Class ;
  rdfs:label "myelomonocytic leukemia cell" ;
  rdfs:comment "One of the more common types of acute myelogenous leukemia, characterized by both malignant monocytes and myeloblasts; it usually affects middle aged to older adults." ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0006344 a rdfs:Class ;
  rdfs:label "ovarian follicle layer" ;
  rdfs:comment "A monolayer of follicle cells surrounding the developing oocyte and forming adhesive contacts with the surrounding follicular epithelium." .

obo:BTO_0003414 a rdfs:Class ;
  rdfs:label "XF-498 cell" ;
  rdfs:comment "Human CNS glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0002808 a rdfs:Class ;
  rdfs:label "B16-BL6 cell" ;
  rdfs:comment "Mouse melanoma cell line, derived from B16-F10 cell; Highly metastatic murine melanoma overexpressing PKC delta BL6 (BL6T) and wild type (BL6) cell line." .

obo:BTO_0001926 a rdfs:Class ;
  rdfs:label "hybridoma cell line" .

obo:BTO_0005759 a rdfs:Class ;
  rdfs:label "epitheliocyte" ;
  rdfs:comment "An in vitro tissue culture epithelial cell." ;
  rdfs:subClassOf obo:BTO_0001120 .

obo:BTO_0001368 a rdfs:Class ;
  rdfs:label "thorax" ;
  rdfs:comment "1: The part of the mammalian body between the neck and the abdomen; also: its cavity in which the heart and lungs lie. 2: The middle of the three chief divisions of the body of an insect; also: the corresponding part of a crustacean or an arachnid." .

obo:BTO_0002203 a rdfs:Class ;
  rdfs:label "SK-MES-1 cell" ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0006479 a rdfs:Class ;
  rdfs:label "Hep3B-c1 cell" ;
  rdfs:comment "It was engineered by stable transfection of plasmids for hypoxia/HIF-1 response element (HRE)-driving firefly luciferase reporter (p2.1) and constitutive renilla luciferase reporter (pSV-renilla) in the human liver cancer cell line Hep3B." .

obo:BTO_0000225 a rdfs:Class ;
  rdfs:label "CEM-C1 cell" ;
  rdfs:comment "CEM is a camptothecin (CPT) resistant derivative of the human T cell leukemia cell line CCRF-CEM. The cell line was selected and subcloned in 1991 for resistance to CPT. Established from an 4-year-old caucasian female with acute lymphoblastic leukemia." .

obo:BTO_0003183 a rdfs:Class ;
  rdfs:label "melanocyte cell line" .

obo:BTO_0000657 a rdfs:Class ;
  rdfs:label "jejunum" ;
  rdfs:comment "The section of the small intestine that comprises the first two fifths beyond the duodenum and that is larger, thicker-walled, and more vascular and has more circular folds than the ileum." .

obo:BTO_0001413 a rdfs:Class ;
  rdfs:label "primary cell" ;
  rdfs:comment "A cell taken directly from a living organism, which is not immortalized." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0001283 a rdfs:Class ;
  rdfs:label "mitral cell" ;
  rdfs:comment "Mitral cells are the principal relay neurons in the olfactory bulb. At the stages 54-56 the main bulb has approximately 1300 of them. Most of them are located in the dorsal part of the bulb. Its dorsal half contains approximately twice as many mitral cells than the ventral half. The external plexiform layer in front of the mitral cell layer can be identified in the dorsal bulb only, while in the ventral bulb the mitral cells are typically located close to and sometimes within the glomerular layer." .

obo:BTO_0000945 a rdfs:Class ;
  rdfs:label "CAL-51 cell" ;
  rdfs:comment "Human breast carcinoma established from the pleural effusion metastasis of a 45-year-old woman with progressive breast adenocarcinoma (after radio-, chemotherapy and surgery) in 1985; rare example of tumor cell line with normal karyotype." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0004402 a rdfs:Class ;
  rdfs:label "bronchial smooth muscle cell" .

obo:BTO_0004646 a rdfs:Class ;
  rdfs:label "culture condition:phenanthrene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002550 a rdfs:Class ;
  rdfs:label "CH-1 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0001266 a rdfs:Class ;
  rdfs:label "invertebrate muscular system" ;
  rdfs:subClassOf obo:BTO_0001485 .

obo:BTO_0005539 a rdfs:Class ;
  rdfs:label "culture condition:cysteate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001824 a rdfs:Class ;
  rdfs:label "synovial sarcoma cell" ;
  rdfs:comment "A cell of a malignant neoplasm arising in the synovial membrane of the joints and also in synovial cells of tendons and bursae." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0005445 a rdfs:Class ;
  rdfs:label "rectal epithelium" ;
  rdfs:comment "Epithelium of the rectum." .

obo:BTO_0005690 a rdfs:Class ;
  rdfs:label "BmN4 cell" ;
  rdfs:comment "Bombyx mori ovary-derived cultured cell line." .

obo:BTO_0001032 a rdfs:Class ;
  rdfs:label "cardiac Purkinje cell" ;
  rdfs:comment "Cells of the Purkinje fibers of the heart; they are large, clear, tightly packed cells with many gap junctions between them and thus conduct impulses rapidly." .

obo:BTO_0005207 a rdfs:Class ;
  rdfs:label "left middle cerebral artery" ;
  rdfs:comment "The left and right middle cerebral arteries rise from trifurcations of the internal carotid arteries and thus are connected to the anterior cerebral arteries and the posterior communicating arteries, which connect to the posterior cerebral arteries." .

obo:BTO_0002428 a rdfs:Class ;
  rdfs:label "esophageal squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002024 , obo:BTO_0002817 .

obo:BTO_0001385 a rdfs:Class ;
  rdfs:label "tongue" ;
  rdfs:comment "A fleshy movable process of the floor of the mouths of most vertebrates that bears sensory end organs and small glands and functions especially in taking and swallowing food and in humans as a speech organ." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0003398 a rdfs:Class ;
  rdfs:label "ganglion cell layer" ;
  rdfs:comment "The innermost nuclear layer of the retina." .

obo:BTO_0004606 a rdfs:Class ;
  rdfs:label "MDCK-1 cell" ;
  rdfs:comment "Cell line was derived by cloning the parental cell line MDCK." .

obo:BTO_0002443 a rdfs:Class ;
  rdfs:label "tetrad of pollen" ;
  rdfs:comment "A group of four cells, as of spores or pollen grains, formed by division of one mother cell." .

obo:BTO_0000799 a rdfs:Class ;
  rdfs:label "lymphosarcoma cell" ;
  rdfs:comment "A malignant lymphoma cell that tends to metastasize freely especially along the regional lymphatic drainage." ;
  rdfs:subClassOf obo:BTO_0000785 , obo:BTO_0001207 .

obo:BTO_0004199 a rdfs:Class ;
  rdfs:label "substantia nigra cell line" ;
  rdfs:subClassOf obo:BTO_0000255 .

obo:BTO_0001663 a rdfs:Class ;
  rdfs:label "ameloblast" ;
  rdfs:comment "A cylindrical epithelial cell in the innermost layer of the enamel organ which takes part in the elaboration of the enamel prism. The ameloblasts cover the dental papilla." ;
  rdfs:subClassOf obo:BTO_0000414 .

obo:BTO_0005876 a rdfs:Class ;
  rdfs:label "KMS-11/TKO cell" ;
  rdfs:comment "KMS-11 cell line knocked out for the MMSET, the multiple myeloma SET domain containing protein on the translocated allele, TKO." .

obo:BTO_0004562 a rdfs:Class ;
  rdfs:label "thymic cortical epithelial cell" ;
  rdfs:comment "Thymic stromal cells include thymic cortical epithelial cells, thymic medullary epithelial cells, and dendritic cells." ;
  rdfs:subClassOf obo:BTO_0004561 .

obo:BTO_0004249 a rdfs:Class ;
  rdfs:label "anterior cingulate cortex" ;
  rdfs:comment "That portion of the cingulate cortex which is located within the frontal lobe (the remainder being in the parietal lobe). It is believed to be involved in the processing of attention." .

obo:BTO_0000286 a rdfs:Class ;
  rdfs:label "cornea" ;
  rdfs:comment "The transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior." .

obo:BTO_0002114 a rdfs:Class ;
  rdfs:label "tela submucosa recti" ;
  rdfs:comment " The submucous layer of the wall of the rectum." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0001125 a rdfs:Class ;
  rdfs:label "culture condition:propanediol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005776 a rdfs:Class ;
  rdfs:label "LN-71 cell" ;
  rdfs:comment "Human central nervous system glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0003233 a rdfs:Class ;
  rdfs:label "FaDu cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line of the hypopharynx." ;
  rdfs:subClassOf obo:BTO_0004546 .

obo:BTO_0004891 a rdfs:Class ;
  rdfs:label "CH-27 cell" ;
  rdfs:comment "Human lung squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0004151 a rdfs:Class ;
  rdfs:label "LOX-IMVI cell" ;
  rdfs:comment "Human skin melanoma cell line, established from a 58 years old men with non- epithelial melanotic melanoma." ;
  rdfs:subClassOf obo:BTO_0002171 .

obo:BTO_0004429 a rdfs:Class ;
  rdfs:label "H-59 cell" ;
  rdfs:comment "Highly invasive Lewis lung carcinoma subline." ;
  rdfs:subClassOf obo:BTO_0000181 .

obo:BTO_0001255 a rdfs:Class ;
  rdfs:label "skin fibroblast" ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0006532 a rdfs:Class ;
  rdfs:label "80S14 cell" ;
  rdfs:comment "A p21 clone of HCT116 derived by homologous recombination." .

obo:BTO_0001424 a rdfs:Class ;
  rdfs:label "uterus" ;
  rdfs:comment "An organ of the female mammal for containing and usually for nourishing the young during development previous to birth." ;
  rdfs:subClassOf obo:BTO_0003099 .

obo:BTO_0004278 a rdfs:Class ;
  rdfs:label "cerebellar granule cell" ;
  rdfs:comment "Granule cells found within the granular layer of the cerebellum." ;
  rdfs:subClassOf obo:BTO_0003393 .

obo:BTO_0001779 a rdfs:Class ;
  rdfs:label "palate" ;
  rdfs:comment "The roof of the mouth separating the mouth from the nasal cavity." .

obo:BTO_0005321 a rdfs:Class ;
  rdfs:label "B6SUtA1 cell" ;
  rdfs:comment "The mIL-3-dependent cell line, BGSUtA was derived from a Friend virus infected culture of C57Bl.S bone marrow cells. The clone, BGSUtA, was obtained by plucking an individual B6SUtA colony growing in methylcellulose." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0000848 a rdfs:Class ;
  rdfs:label "melanoma cell" ;
  rdfs:comment "A cell of a form of skin cancer that arises in melanocytes, the cells that produce pigment. Melanoma usually begins in a mole." ;
  rdfs:subClassOf obo:BTO_0001286 .

obo:BTO_0004547 a rdfs:Class ;
  rdfs:label "hypopharyngeal squamous cell carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0001289 .

obo:BTO_0000889 a rdfs:Class ;
  rdfs:label "Burkitt lymphoma cell line" ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0005985 a rdfs:Class ;
  rdfs:label "plant ear" ;
  rdfs:comment "Fruiting spike of a cereal plant especially corn." ;
  rdfs:subClassOf obo:BTO_0001278 .

obo:BTO_0003551 a rdfs:Class ;
  rdfs:label "KP-3 cell" ;
  rdfs:comment "Human pancreatic cancer cell line, obtained from liver metastases of pancreatic tumors." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0000808 a rdfs:Class ;
  rdfs:label "interrenal gland" ;
  rdfs:comment "Structures in fishes homologous to the cortical tissue of the mammalian adrenal gland; they are in close proximity to or imbedded in the kidney." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0001734 a rdfs:Class ;
  rdfs:label "gut juice" ;
  rdfs:subClassOf obo:BTO_0000346 .

obo:BTO_0002772 a rdfs:Class ;
  rdfs:label "chela" ;
  rdfs:comment "A pincerlike claw of a crustacean or arachnid, such as a lobster, crab, or scorpion." ;
  rdfs:subClassOf obo:BTO_0001719 .

obo:BTO_0005012 a rdfs:Class ;
  rdfs:label "46BR-1G1 cell" ;
  rdfs:comment "Human skin fibroblast cell line, SV40 T antigen transformed, derived from 46BR, a fibroblast from an individual with hypogammaglobulinaemia. The parent line was transformed with the plasmid pSV3gpt expressing SV40 T-antigen." .

obo:BTO_0004087 a rdfs:Class ;
  rdfs:label "mammary gland tumor cell" .

obo:BTO_0004256 a rdfs:Class ;
  rdfs:label "long bone" ;
  rdfs:comment "In limbs of vertebrate animals. A long cylindrical bone that contains marrow." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0000453 a rdfs:Class ;
  rdfs:label "fibroblast cell line" .

obo:BTO_0006199 a rdfs:Class ;
  rdfs:label "esophageal epithelial cell" .

obo:BTO_0004511 a rdfs:Class ;
  rdfs:label "serous cystadenocarcinoma cell" ;
  rdfs:comment "Cystadenocarcinomas develop frequently in the ovaries, where pseudomucinous and serous types are recognised." ;
  rdfs:subClassOf obo:BTO_0004510 .

obo:BTO_0001853 a rdfs:Class ;
  rdfs:label "vascular endothelium" ;
  rdfs:comment "The innermost lining of a blood vessel." ;
  rdfs:subClassOf obo:BTO_0000393 .

obo:BTO_0000217 a rdfs:Class ;
  rdfs:label "MH-7777A cell" ;
  rdfs:comment "Rat hepatoma, established from the liver tumor of a Buffalo rat; tumor cells were propagated in the hind leg." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001374 a rdfs:Class ;
  rdfs:label "thymus" ;
  rdfs:comment "A glandular structure of largely lymphoid tissue that functions especially in the development of the body's immune system, is present in the young of most vertebrates typically in the upper anterior chest or at the base of the neck, and tends to atrophy in the adult." ;
  rdfs:subClassOf obo:BTO_0000753 , obo:BTO_0001488 .

obo:BTO_0002187 a rdfs:Class ;
  rdfs:label "culture condition:3-nitrophenol grown-cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003971 a rdfs:Class ;
  rdfs:label "hair follicle inner root sheath" ;
  rdfs:comment "The cells of the inner root sheath are interlocked with those of the cuticle of the hair, firmly anchoring the hair in the follicle. The inner root sheath must grow at the same rate as the hair, or faster as it molds and guides the shaft in its passage outward." .

obo:BTO_0006302 a rdfs:Class ;
  rdfs:label "mpkCCD cell" ;
  rdfs:comment "Mouse cortical collecting duct cell line." ;
  rdfs:subClassOf obo:BTO_0002658 .

obo:BTO_0001722 a rdfs:Class ;
  rdfs:label "enamel organ" ;
  rdfs:comment "A circumscribed knoblike mass of ectodermal cells arising from the dental lamina; it produces the enamel cap from which the dental enamel develops." ;
  rdfs:subClassOf obo:BTO_0000315 , obo:BTO_0001511 .

obo:BTO_0001518 a rdfs:Class ;
  rdfs:label "B-cell lymphoma cell line" ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0000910 a rdfs:Class ;
  rdfs:label "culture condition:N-acetyl-D-glucosamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005387 a rdfs:Class ;
  rdfs:label "SUM-102PT cell" ;
  rdfs:comment "Human breast cancer cell line, derived from a primary human ductal carcinoma with evidence of micro-invasion and is a basal breast cancer cell line." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0006496 a rdfs:Class ;
  rdfs:label "inflorescence bract" ;
  rdfs:comment "A bract subtending a branch of the inflorescence or borne on the inflorescence axis below any branch  or flower." ;
  rdfs:subClassOf obo:BTO_0002222 .

obo:BTO_0002783 a rdfs:Class ;
  rdfs:label "superior mesenteric vein" ;
  rdfs:comment "The superior (upper) mesenteric vein joins the splenic vein to create the portal vein which goes to the liver." ;
  rdfs:subClassOf obo:BTO_0002781 .

obo:BTO_0001793 a rdfs:Class ;
  rdfs:label "tectum mesencephali" ;
  rdfs:comment "The dorsal part of the midbrain including the corpora quadrigemina." .

obo:BTO_0001006 a rdfs:Class ;
  rdfs:label "pelvis" ;
  rdfs:comment "The inferior portion of the trunk of the body, bounded anteriorly and laterally by the two hip bones and posteriorly by the sacrum and coccyx. The pelvis is divided by a plane passing through the terminal lines into the pelvis major superiorly and the pelvis minor inferiorly." .

obo:BTO_0003306 a rdfs:Class ;
  rdfs:label "Mat-Ly-Lu cell" ;
  rdfs:comment "Rat prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0000394 a rdfs:Class ;
  rdfs:label "aorta endothelium" ;
  rdfs:comment "Simple squamous epithelium which lines the lumen side of the blood vessel." ;
  rdfs:subClassOf obo:BTO_0001853 .

obo:BTO_0003472 a rdfs:Class ;
  rdfs:label "vagus nerve" ;
  rdfs:comment "Either of the 10th pair of cranial nerves that arise from the medulla and supply chiefly the viscera especially with autonomic sensory and motor fibers." ;
  rdfs:subClassOf obo:BTO_0001104 .

obo:BTO_0000833 a rdfs:Class ;
  rdfs:label "RBL-2H3 cell" ;
  rdfs:comment "Rat basophilic leukemia (RBL) cell line, obtained by Eccleston et al. and was maintained by serial passage in neonatal Wistar rats. Four cell lines (named RBL I-IV) were started from this tumor between 1973 and 1975. The subline RBL-IV HR+ was derived from RBL-IV, further subcloning established the cell line RBL-2H3. Cells are described to release histamine as an IgE-mediated reaction." ;
  rdfs:subClassOf obo:BTO_0001018 .

obo:BTO_0005098 a rdfs:Class ;
  rdfs:label "epidermal stem cell" ;
  rdfs:comment "The epidermal stem cells give rise to keratinocytes, which migrate to the surface of the skin and form a protective layer." ;
  rdfs:subClassOf obo:BTO_0005097 .

obo:BTO_0004331 a rdfs:Class ;
  rdfs:label "UW228-2 cell" ;
  rdfs:comment "Human medulloblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001359 .

obo:BTO_0005528 a rdfs:Class ;
  rdfs:label "plant secretory cell" ;
  rdfs:comment "Plant secretory cells are derived from parenchyma cells and may function on their own or as a tissue. Examples: oils in citrus, pine resin, latex, opium, nectar, perfumes and plant hormones." .

obo:BTO_0004872 a rdfs:Class ;
  rdfs:label "NCR-EW2 cell" ;
  rdfs:comment "Cell line derived from Ewing's sarcoma (ES)." ;
  rdfs:subClassOf obo:BTO_0004785 .

obo:BTO_0003746 a rdfs:Class ;
  rdfs:label "SW-1398 cell" ;
  rdfs:comment "Human colorectal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0004859 a rdfs:Class ;
  rdfs:label "Nthy-ori 3-1 cell" ;
  rdfs:comment "Human thyroid follicular epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0001876 .

obo:BTO_0003103 a rdfs:Class ;
  rdfs:label "pro-B-lymphocyte cell line" .

obo:BTO_0001018 a rdfs:Class ;
  rdfs:label "basophilic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0000399 a rdfs:Class ;
  rdfs:label "eosinophil" ;
  rdfs:comment "A white blood cell or other granulocyte with cytoplasmic inclusions readily stained by eosin." ;
  rdfs:subClassOf obo:BTO_0000539 .

obo:BTO_0001652 a rdfs:Class ;
  rdfs:label "sacrospinalis" ;
  rdfs:comment "A muscle that extends the length of the back and neck, that arises from the iliac crest, the sacrum, and the lumbar and two lower thoracic vertebrae, and that splits in the upper lumbar region into three divisions of which the lateral is made up of the three iliocostalis muscles, the intermediate is made up of the three longissimus muscles, and the medial is made up of the three spinalis muscles." ;
  rdfs:subClassOf obo:BTO_0001261 .

obo:BTO_0002544 a rdfs:Class ;
  rdfs:label "MCF-12A cell" ;
  rdfs:comment "Human mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0005607 a rdfs:Class ;
  rdfs:label "gamma delta T-lymphocyte" ;
  rdfs:comment "Gamma delta T cells are a subset of T cells defined by the genetic composition of their T Cell Receptor (TCR). All T cells are derived from common progenitor thymocytes, and while the majority of T cells express TCR chain heterodimers encoded by the alpha and beta gene loci, gamma delta T cells express TCR chains encoded by the gamma and delta gene loci." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0002269 a rdfs:Class ;
  rdfs:label "JEG-3 cell" ;
  rdfs:comment "Human choriocarcinoma cell line; established from a human gestational choriocarcinoma which was taken at autopsy from a cerebral metastasis; serial sister cell line of cell line BEWO." ;
  rdfs:subClassOf obo:BTO_0001575 .

obo:BTO_0002300 a rdfs:Class ;
  rdfs:label "hilum nuclei olivaris inferioris" ;
  rdfs:comment "The white core of the inferior olivary nucleus of the medulla oblongata, most prominent medially." .

obo:BTO_0005076 a rdfs:Class ;
  rdfs:label "KG-1A cell" ;
  rdfs:comment "The KG-1A cell line is derived from the KG-1 cell line and is almost identical." .

obo:BTO_0000794 a rdfs:Class ;
  rdfs:label "pancreatic cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000183 .

obo:BTO_0004065 a rdfs:Class ;
  rdfs:label "CHO-MG cell" ;
  rdfs:comment "A mutant of CHO cells resistant to the drug, methylglyoxal bis(guanylhydrazone) (MGBG)." .

obo:BTO_0004505 a rdfs:Class ;
  rdfs:label "RS4-11 cell" ;
  rdfs:comment "Human B cell precursor leukemia cell line; established from the bone marrow of a 32-year-old woman with acute lymphoblastic leukemia (ALL L2) in first relapse." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0006511 a rdfs:Class ;
  rdfs:label "PMF-Ko14 cell" ;
  rdfs:comment "Human colorectal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002739 a rdfs:Class ;
  rdfs:label "VACO cell" ;
  rdfs:comment "The Vaco cell lines were established from colon cancers." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0001087 a rdfs:Class ;
  rdfs:label "plasmacytoma cell" ;
  rdfs:comment "Cancer cell of the plasma cells -white blood cells that produce antibodies- that may turn into multiple myeloma." ;
  rdfs:subClassOf obo:BTO_0000580 .

obo:BTO_0002406 a rdfs:Class ;
  rdfs:label "eosinophilic leukemia cell line" ;
  rdfs:comment "A form of granulocytic leukemia cell line characterized by abnormal numbers of or a predomination of eosinophilic granulocytes in the tissues and blood." ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0005952 a rdfs:Class ;
  rdfs:label "BT-245 cell" ;
  rdfs:comment "Primary human pediatric GBM line derived from a supratentorial GBM resected at initial diagnosis at Boston Children's Hospital." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0000921 a rdfs:Class ;
  rdfs:label "CAL-27 cell" ;
  rdfs:comment "Human tongue squamous cell carcinoma established from the poorly differentiated squamous cell carcinoma of the tongue removed from a 56-year-old man before treatment in 1982." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0000587 a rdfs:Class ;
  rdfs:label "C 108 cell" ;
  rdfs:comment "Mouse, C57BL/6, Lewis lung carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000181 .

obo:BTO_0001983 a rdfs:Class ;
  rdfs:label "peptic chief cell" ;
  rdfs:comment "Epithelial cell of the stomach, either columnar or cuboidal, that line the lower portions of the gastric glands and secrete pepsin." .

obo:BTO_0003465 a rdfs:Class ;
  rdfs:label "293-IL-1RI cell" ;
  rdfs:comment "293 cell line stably expressing IL-1RI." .

obo:BTO_0004913 a rdfs:Class ;
  rdfs:label "vastus medialis" ;
  rdfs:comment "One of the four muscles of the quadriceps femoris group, situated in the medial part of the thigh. The muscle functions in combination with other parts of the quadriceps femoris to extend the leg." .

obo:BTO_0002396 a rdfs:Class ;
  rdfs:label "NIH-3T3-G185 cell" ;
  rdfs:comment "The NIH-3T3-G185 cell line, which contains the gene product of human MDR1, was licensed from the National Institutes of Health (NIH)." .

obo:BTO_0000343 a rdfs:Class ;
  rdfs:label "renal tubule" ;
  rdfs:comment "One of the minute, reabsorptive, secretory, and collecting canals, made up of basement membrane lined with epithelium, that form the substance of the kidneys." .

obo:BTO_0006171 a rdfs:Class ;
  rdfs:label "syncytial embryo sac" ;
  rdfs:comment "A stage of the embryo sac development." ;
  rdfs:subClassOf obo:BTO_0000842 .

obo:BTO_0005057 a rdfs:Class ;
  rdfs:label "J5 hepatoma cell" ;
  rdfs:comment "Human hepatocellular carcinoma (HCC) cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0003774 a rdfs:Class ;
  rdfs:label "SCC-25 cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line; established from the biopsy of a squamous cell carcinoma of the tongue of a 70-year-old man." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0004245 a rdfs:Class ;
  rdfs:label "NIH-3T3-A14 cell" ;
  rdfs:comment "NIH-3T3 cell line stably transfected with insulin receptor cDNA." .

obo:BTO_0001312 a rdfs:Class ;
  rdfs:label "adductor magnus" ;
  rdfs:comment "Adductor arising from the inferior ramus of the pubis and the ischium and inserted behind the first two into the linea aspera." ;
  rdfs:subClassOf obo:BTO_0000030 .

obo:BTO_0004533 a rdfs:Class ;
  rdfs:label "respiratory epithelium cell" .

obo:BTO_0005023 a rdfs:Class ;
  rdfs:label "cEND cell" ;
  rdfs:comment "Human brain endothelial cell line cEND." ;
  rdfs:subClassOf obo:BTO_0003249 .

obo:BTO_0001948 a rdfs:Class ;
  rdfs:label "JURKAT E-6.1 cell" ;
  rdfs:comment "Human, blood, leukemia, T cell line, clone E6.1." .

obo:BTO_0004028 a rdfs:Class ;
  rdfs:label "95-H1 cell" ;
  rdfs:comment "High metastatic macrophage fusion hybrid cell line; established from a preparation of mouse peritoneal macrophages from syngenic DBA/2J mice, and fusion with the G418-resistant Cloudman S91 cell line, PS1- HGPRT-1 (also referred to as 6neo)." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0001288 a rdfs:Class ;
  rdfs:label "adductor brevis" ;
  rdfs:comment "Adductor arising from the inferior ramus of the pubis and inserted into the iliopectineal line and the upper part of the linea aspera." ;
  rdfs:subClassOf obo:BTO_0000030 .

obo:BTO_0000708 a rdfs:Class ;
  rdfs:label "larval integument" .

obo:BTO_0005344 a rdfs:Class ;
  rdfs:label "Ma-Mel-42b cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004393 a rdfs:Class ;
  rdfs:label "alabastrum" ;
  rdfs:comment "A flower bud." ;
  rdfs:subClassOf obo:BTO_0000470 .

obo:BTO_0001446 a rdfs:Class ;
  rdfs:label "olfactory cortex" ;
  rdfs:comment "That portion of the cerebral cortex that, with the palaeocortex, develops in association with the olfactory system, and which is phylogenetically older than the neocortex and lacks its layered structure. The embryonic archaeocortex corresponds to the cortex of the dentate gyrus and hippocampus in mature mammals." .

obo:BTO_0001240 a rdfs:Class ;
  rdfs:label "SF-9 cell" ;
  rdfs:comment "Insect - fall armyworm (Spodoptera frugiperda) cell line, cloned from the parent cell line, IPLB-SF-21-AE, derived from pupal ovarian tissue of the fall armyworm (species Spodoptera frugiperda, family Sciaridae, order Lepidoptera); cells are susceptible to infection with MNPV and other Baculoviruses; cells can be used with Baculovirus expression vectors. It was derived from SF-21." .

obo:BTO_0000431 a rdfs:Class ;
  rdfs:label "excretory gland" ;
  rdfs:comment "A gland that discharges its secretion through a duct opening on an internal or external surface of the body, as a lacrimal gland." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0005945 a rdfs:Class ;
  rdfs:label "perirenal adipose tissue" ;
  rdfs:comment "Visceral fat is composed of several adipose depots, including mesenteric, epididymal white adipose tissue EWAT, and perirenal depots." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0004387 a rdfs:Class ;
  rdfs:label "anterior cardinal vein" ;
  rdfs:comment "Any of the major drainage channels from the cephalic region of most vertebrate embryos." ;
  rdfs:subClassOf obo:BTO_0004385 .

obo:BTO_0004545 a rdfs:Class ;
  rdfs:label "M-1 collecting duct cell" ;
  rdfs:comment "Mouse collecting duct cell line; established from normal renal tissue taken from a mouse transgenic for the SV40 early region. The cells retain many characteristics of cortical collecting duct cells including morphology and CCD antigens." ;
  rdfs:subClassOf obo:BTO_0002658 .

obo:BTO_0005601 a rdfs:Class ;
  rdfs:label "paracentral lobule" ;
  rdfs:comment "The term paracentral lobule refers to the junction of the precentral gyrus and postcentral gyrus on the medial surface of the cerebral cortex. It lies across the boundary between the frontal lobe and the parietal lobe." .

obo:BTO_0002229 a rdfs:Class ;
  rdfs:label "culture condition:heme-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000967 a rdfs:Class ;
  rdfs:label "osseous plate" ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0002873 a rdfs:Class ;
  rdfs:label "HN9.10e cell" ;
  rdfs:comment "Embryonic hippocampal cell line." ;
  rdfs:subClassOf obo:BTO_0002872 .

obo:BTO_0004465 a rdfs:Class ;
  rdfs:label "LAMA-84 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in blast crisis; established from the peripheral blood of a 29-year-old woman with chronic myeloid leukemia." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0000478 a rdfs:Class ;
  rdfs:label "forebrain" ;
  rdfs:comment "The anterior of the three primary divisions of the developing vertebrate brain or the corresponding part of the adult brain that includes especially the cerebral hemispheres, the thalamus, and the hypothalamus and that especially in higher vertebrates is the main control center for sensory and associative information processing, visceral functions, and voluntary motor functions." .

obo:BTO_0000297 a rdfs:Class ;
  rdfs:label "carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001120 .

obo:BTO_0005563 a rdfs:Class ;
  rdfs:label "dental lamina" ;
  rdfs:comment "A band of ectodermal cells growing from the epithelium of the embryonic jaws into the underlying mesenchyme and giving rise to the primordia of the enamel organs of the teeth." ;
  rdfs:subClassOf obo:BTO_0000315 .

obo:BTO_0000961 a rdfs:Class ;
  rdfs:label "olfactory bulb" ;
  rdfs:comment "A bulbous anterior projection of the olfactory lobe that is the place of termination of the olfactory nerves and is especially well developed in lower vertebrates (as fishes)." .

obo:BTO_0003760 a rdfs:Class ;
  rdfs:label "SNU-182 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001897 a rdfs:Class ;
  rdfs:label "hemocyte cell line" .

obo:BTO_0002508 a rdfs:Class ;
  rdfs:label "myenteron" ;
  rdfs:comment "The muscular coat of the intestine." ;
  rdfs:subClassOf obo:BTO_0000643 .

obo:BTO_0002356 a rdfs:Class ;
  rdfs:label "navicular bone" ;
  rdfs:comment "The ovoid-shaped tarsal bone that is situated between the talus and the three cuneiform bones." ;
  rdfs:subClassOf obo:BTO_0002343 .

obo:BTO_0002905 a rdfs:Class ;
  rdfs:label "NHL-B cell" ;
  rdfs:comment "B-cell non-Hodgkin lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0001518 , obo:BTO_0002904 .

obo:BTO_0004686 a rdfs:Class ;
  rdfs:label "cochlear labyrinth" ;
  rdfs:comment "The part of the membranous labyrinth that includes the perilymphatic space and the cochlear duct." .

obo:BTO_0002555 a rdfs:Class ;
  rdfs:label "HOSE cell" ;
  rdfs:comment "Human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004482 .

obo:BTO_0003255 a rdfs:Class ;
  rdfs:label "AX-4 cell" ;
  rdfs:comment "Normal Dictyostelium amoebal cell line." ;
  rdfs:subClassOf obo:BTO_0000070 .

obo:BTO_0006044 a rdfs:Class ;
  rdfs:label "NB4-LR2 cell" ;
  rdfs:comment "All-trans retinoic acid-resistant subclone of the acute promyelocytic leukemia cell line NB4." .

obo:BTO_0001908 a rdfs:Class ;
  rdfs:label "MDA-MB-453 cell" ;
  rdfs:comment "Human breast carcinoma cell line; established from an effusion of a 48-year-old woman with breast carcinoma in 1976." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0000422 a rdfs:Class ;
  rdfs:label "vaginal epithelium" ;
  rdfs:comment "Vaginal epithelium is stratified squamous epithelium having a thickness of 15-200 microns." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0002020 a rdfs:Class ;
  rdfs:label "clitoris" ;
  rdfs:comment "A small erectile organ at the anterior or ventral part of the vulva homologous to the penis." .

obo:BTO_0005613 a rdfs:Class ;
  rdfs:label "BMC-2 cell" ;
  rdfs:comment "Mouse macrophage cell line." ;
  rdfs:subClassOf obo:BTO_0002278 .

obo:BTO_0002984 a rdfs:Class ;
  rdfs:label "antropyloric mucosa" ;
  rdfs:comment "Mucosa pertaining to or affecting the pyloric part of the stomach, including its antrum." ;
  rdfs:subClassOf obo:BTO_0001308 .

obo:BTO_0001233 a rdfs:Class ;
  rdfs:label "plant embryo" ;
  rdfs:comment "The early developmental stage that, through embryological development, ultimately becomes an adult individual. In plants, that portion of a seed that will form the growing seedling following germination, it has a radicle, apical meristem, and embryonic leaf or leaves." ;
  rdfs:subClassOf obo:BTO_0001461 .

obo:BTO_0005034 a rdfs:Class ;
  rdfs:label "DT-40 3KO cell" .

obo:BTO_0001103 a rdfs:Class ;
  rdfs:label "skeletal muscle" ;
  rdfs:comment "A usually voluntary muscle made up of elongated, multinucleated, transversely striated muscle fibers, having principally bony attachments." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0000581 a rdfs:Class ;
  rdfs:label "MOPC-315 cell" ;
  rdfs:comment "Mouse B lymphocyte; plasmacytoma; myeloma. MOPC 315 plasmacytoma was induced with mineral oil in a BALB/c mouse." .

obo:BTO_0005466 a rdfs:Class ;
  rdfs:label "IPA-220 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0003201 a rdfs:Class ;
  rdfs:label "SK-RC-45 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0005992 a rdfs:Class ;
  rdfs:label "pseudostem" ;
  rdfs:comment "A false stem made of the rolled bases of leaves, which may be 2 or 3 m tall as in banana." ;
  rdfs:subClassOf obo:BTO_0001300 .

obo:BTO_0005065 a rdfs:Class ;
  rdfs:label "3T3-Swiss albino cell" ;
  rdfs:comment "An immortal line of fibroblast like cells established from whole trypsinised embryos of Swiss mice (not an inbred stock) under conditions that favour establishment of cells with low saturation density in culture; The 3T3 cell line was established by G. Todaro and H. Green in 1962 from disaggregated Swiss mouse embryos." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0001492 a rdfs:Class ;
  rdfs:label "limb" ;
  rdfs:comment "1. One of the projecting paired appendages (as wings) of an animal body used especially for movement and grasping but sometimes modified into sensory or sexual organs. 2. A leg or arm of a human being." .

obo:BTO_0003573 a rdfs:Class ;
  rdfs:label "HL60/DNR cell" ;
  rdfs:comment "Acute promyelocytic leukemia resistant to daunorubicin." .

obo:BTO_0001500 a rdfs:Class ;
  rdfs:label "tendril" ;
  rdfs:comment "A leaf, stipule, or stem modified into a slender spirally coiling sensitive organ serving to attach a climbing plant to its support." ;
  rdfs:subClassOf obo:BTO_0000713 , obo:BTO_0001300 .

obo:BTO_0005017 a rdfs:Class ;
  rdfs:label "usual ductal hyperplasia cell" ;
  rdfs:comment "A focal expansion of the number of cells in a terminal breast duct." ;
  rdfs:subClassOf obo:BTO_0005016 .

obo:BTO_0001879 a rdfs:Class ;
  rdfs:label "H9c2 cell" ;
  rdfs:comment "Rat DB1X heart myoblast cell line." ;
  rdfs:subClassOf obo:BTO_0000256 .

obo:BTO_0002236 a rdfs:Class ;
  rdfs:label "ovarian cumulus cell" ;
  rdfs:comment "The somatic granulosa cells surrounding the oocyte are termed cumulus cells." ;
  rdfs:subClassOf obo:BTO_0000542 .

obo:BTO_0000083 a rdfs:Class ;
  rdfs:label "female reproductive system" ;
  rdfs:comment "The internal and external reproductive organs in the female." ;
  rdfs:subClassOf obo:BTO_0000081 .

obo:BTO_0000978 a rdfs:Class ;
  rdfs:label "CMK cell" ;
  rdfs:comment "Human acute megakaryocytic leukemia; established from the peripheral blood of a 10-month-old boy with Down's syndrome and acute megakaryocytic leukemia (AML M7) at relapse in 1985." ;
  rdfs:subClassOf obo:BTO_0001000 .

obo:BTO_0001548 a rdfs:Class ;
  rdfs:label "labial gland" ;
  rdfs:comment "1. One of the small tubular mucous and serous glands lying beneath the mucous membrane of the lips. 2. A salivary gland, or modification thereof, opening at the base of the labium in certain insects." ;
  rdfs:subClassOf obo:BTO_0001203 .

obo:BTO_0006249 a rdfs:Class ;
  rdfs:label "dorsal endoderm" ;
  rdfs:comment "Single cell layer of involuted endoderm lying beneath the prechordal plate." ;
  rdfs:subClassOf obo:BTO_0000800 .

obo:BTO_0004223 a rdfs:Class ;
  rdfs:label "cervical squamous cell carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0000180 , obo:BTO_0001289 .

obo:BTO_0000068 a rdfs:Class ;
  rdfs:label "amniotic fluid" ;
  rdfs:comment "Fluid within the amniotic cavity produced by the amnion during the early embryonic period, and later by the lungs and kidneys; at first crystal clear, it later becomes cloudy. It protects the embryo and fetus from injury. The amount at term normally varies from 500 to 1500 mL." .

obo:BTO_0001752 a rdfs:Class ;
  rdfs:label "invertebrate mandible" ;
  rdfs:comment "Any of various mouth organs of invertebrates used for seizing and biting food, especially either of a pair of such organs in insects and other arthropods." .

obo:BTO_0000124 a rdfs:Class ;
  rdfs:label "microspore" ;
  rdfs:comment "Haploid cells produced by meiosis in the anthers of angiosperms; four microspores are produced from a single microsporocyte." .

obo:BTO_0005742 a rdfs:Class ;
  rdfs:label "transfer cell precursor" ;
  rdfs:subClassOf obo:BTO_0005740 .

obo:BTO_0001178 a rdfs:Class ;
  rdfs:label "retinoblastoma cell" ;
  rdfs:comment "A malignant congenital blastoma, occurring in both hereditary and sporadic forms, composed of tumor cells arising from the retinoblasts, appearing in one or both eyes in children under 5 years of age, and usually diagnosed initially by a bright white or yellow pupillary reflex -leukokoria." ;
  rdfs:subClassOf obo:BTO_0000526 , obo:BTO_0000579 .

obo:BTO_0000407 a rdfs:Class ;
  rdfs:label "osteosarcoma cell line" ;
  rdfs:comment "Cell line of a malignant neoplasm of the bone-forming tissues." ;
  rdfs:subClassOf obo:BTO_0000385 .

obo:BTO_0004718 a rdfs:Class ;
  rdfs:label "breast lobe" ;
  rdfs:comment "The 15 to 20 separate portions of the mammary gland that radiate from the central area deep to the nipple like wheel spokes and comprise the body of the mammary gland; each is drained by a single lactiferous duct." .

obo:BTO_0002809 a rdfs:Class ;
  rdfs:label "L-6 myoblast cell" ;
  rdfs:comment "Rattus norvegicus skeletal muscle myoblast cell line. The L6 myogenic line was isolated from primary cultures of rat thigh muscle maintained for the first two passages in the presence of methyl cholanthrene." ;
  rdfs:subClassOf obo:BTO_0000256 , obo:BTO_0002662 .

obo:BTO_0003785 a rdfs:Class ;
  rdfs:label "ray floret" ;
  rdfs:comment "Small flower with a flat strap-shaped corolla usually occupying the peripheral rings of a composite flower." ;
  rdfs:subClassOf obo:BTO_0000468 .

obo:BTO_0004313 a rdfs:Class ;
  rdfs:label "46BR cell" ;
  rdfs:comment "DNA ligase I-deficient human primary fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0002519 a rdfs:Class ;
  rdfs:label "FL-218 cell" ;
  rdfs:comment "Cell line established from effusion cells of two Japanese patients manifesting the transformed histology of follicular lymphoma." ;
  rdfs:subClassOf obo:BTO_0002517 .

obo:BTO_0003125 a rdfs:Class ;
  rdfs:label "HBMEC cell" ;
  rdfs:subClassOf obo:BTO_0003124 .

obo:BTO_0001932 a rdfs:Class ;
  rdfs:label "BT-474 cell" ;
  rdfs:comment "Human breast ductal carcinoma cell line; established from a solid, invasive ductal carcinoma of the breast; obtained from a 60-year-old woman; cells were reportedly tumorigenic in athymic mice and were found to be susceptible to mouse mammary tumor virus." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0006320 a rdfs:Class ;
  rdfs:label "HKiG2 cell" ;
  rdfs:comment "cN-II hyper-expressing cell line derived from human embryonic kidney HEK 293 cells." .

obo:BTO_0002884 a rdfs:Class ;
  rdfs:label "416B cell" ;
  rdfs:comment "Mouse (C57BL/6xDBA/2)F1 leukaemia lymphocyte cell line. Derived from Friend leukaemia virus-induced leukaemia in BDF mice. Produces spleen colonies in vivo (of myelomonocytic, megakaryocytic, and erythropoietic origin)." ;
  rdfs:subClassOf obo:BTO_0001263 .

obo:BTO_0004758 a rdfs:Class ;
  rdfs:label "arterial endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001176 .

obo:BTO_0001093 a rdfs:Class ;
  rdfs:label "WEHI-231 cell" ;
  rdfs:comment "Mouse, BALB/cxNZB F1, lymphoblastic lymphoma cell line. Morphology: Lymphoblast Mouse B cell lymphoma." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0000913 a rdfs:Class ;
  rdfs:label "nasal polyp" ;
  rdfs:comment "Focal accumulations of edema fluid in the mucosa of the nose, with hyperplasia of the associated submucosal connective tissue." .

obo:BTO_0001077 a rdfs:Class ;
  rdfs:label "AtT-20 cell" ;
  rdfs:comment "Mouse pituitary tumor cell line. Morphology: small rounded cells." ;
  rdfs:subClassOf obo:BTO_0000756 .

obo:BTO_0001551 a rdfs:Class ;
  rdfs:label "free-living state" ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0003199 a rdfs:Class ;
  rdfs:label "SK-RC-39 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0002620 a rdfs:Class ;
  rdfs:label "anterior adductor muscle" ;
  rdfs:comment "Two dorsal muscles, called adductors, extend transversely between the valves, one at the anterior end and the other at the posterior end." ;
  rdfs:subClassOf obo:BTO_0000887 , obo:BTO_0001262 .

obo:BTO_0002702 a rdfs:Class ;
  rdfs:label "medial amygdaloid nucleus" ;
  rdfs:comment "A nucleus in the corticomedial part of the amygdaloid body." .

obo:BTO_0002645 a rdfs:Class ;
  rdfs:label "CCD-8Lu cell" ;
  rdfs:comment "Human normal lung fibroblast cell line established from a caucasian 48-years-old human male. Derived from normal tissue from patient who died of cerebral thrombosis." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0003681 a rdfs:Class ;
  rdfs:label "hairy cell leukemia cell line" ;
  rdfs:comment "A form of chronic leukemia marked by splenomegaly and the large, mononuclear, villus-covered cells called hairy cells in the bone marrow, spleen, liver, and peripheral blood." ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0002172 a rdfs:Class ;
  rdfs:label "ABFTL-6 cell" ;
  rdfs:comment "Mouse mast cell line." ;
  rdfs:subClassOf obo:BTO_0001668 .

obo:BTO_0000303 a rdfs:Class ;
  rdfs:label "crown gall" ;
  rdfs:comment "A disease that affects many species of plants and is caused by a bacterium (Agrobacterium tumefaciens) which forms tumorous enlargements just below the ground on the stem." ;
  rdfs:subClassOf obo:BTO_0000677 .

obo:BTO_0002199 a rdfs:Class ;
  rdfs:label "Colo-206F cell" ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0001767 a rdfs:Class ;
  rdfs:label "neurosecretory cell" ;
  rdfs:comment "A type of neuron, or nerve cell, whose function is to translate neural signals into chemical stimuli. Such cells produce secretions called neurohormones that travel along the neuron axon and are typically released into the bloodstream at neurohemal organs, regions in which the axon endings are in close contact with blood capillaries. Neurosecretory cells are present in most multicellular animals and are usually distinguished from other neurons by the unusually large size of the cell nucleus, axon endings, and the cell itself." ;
  rdfs:subClassOf obo:BTO_0000938 , obo:BTO_0001488 .

obo:BTO_0000859 a rdfs:Class ;
  rdfs:label "metacestode" ;
  rdfs:comment "The larval (metacestode) stage of the tapeworm Echinococcus multilocularis." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0005281 a rdfs:Class ;
  rdfs:label "intercostal muscle" ;
  rdfs:comment "Intercostal muscles are several groups of muscles that run between the ribs, and help form and move the chest wall. The intercostal muscles are mainly involved in the mechanical aspect of breathing. These muscles help expand and shrink the size of the chest cavity when you breathe." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0004798 a rdfs:Class ;
  rdfs:label "accessory sex gland" ;
  rdfs:comment "Male accessory glands in humans are the seminal vesicles, prostate gland, and the bulbourethral glands. In insects, male accessory glands produce products that mix with the sperm to protect and preserve them." ;
  rdfs:subClassOf obo:BTO_0000080 .

obo:BTO_0002445 a rdfs:Class ;
  rdfs:label "diagonal band" ;
  rdfs:comment "A band of nerve fibers that forms the caudal zone of the anterior perforated substance where it adjoins the optic tract, which is continuous caudolaterally with the periamygdaloid area and rostromedially passes above the optic chiasm to blend with the paraterminal gyrus." .

obo:BTO_0000135 a rdfs:Class ;
  rdfs:label "aorta" ;
  rdfs:comment "The great arterial trunk that carries blood from the heart to be distributed by branch arteries through the body." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0002103 a rdfs:Class ;
  rdfs:label "MOPC-173 cell" ;
  rdfs:comment "Murine plasmacytoma cell line; also described as mouse myeloma tumor." ;
  rdfs:subClassOf obo:BTO_0000456 .

obo:BTO_0005449 a rdfs:Class ;
  rdfs:label "ARL-16T2 cell" ;
  rdfs:comment "Tumorigenic rat liver cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000819 a rdfs:Class ;
  rdfs:label "pharyngeal cell line" .

obo:BTO_0002681 a rdfs:Class ;
  rdfs:label "renal vein" ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0002251 a rdfs:Class ;
  rdfs:label "lamina medullaris medialis corporis striati" ;
  rdfs:comment "A layer of white substance that divides the medial portion of the lentiform nucleus (globus pallidus) into a larger, lateral, and a smaller, medial part." .

obo:BTO_0002995 a rdfs:Class ;
  rdfs:label "DEDE cell" ;
  rdfs:comment "Cricetulus griseus (chinese hamster) lung fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0003510 a rdfs:Class ;
  rdfs:label "RLE-6TN cell" ;
  rdfs:comment "Rat type II alveolar epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003512 .

obo:BTO_0004877 a rdfs:Class ;
  rdfs:label "distal tip cell" ;
  rdfs:comment "A somatic cell with several important functions within the gonad (ovary); it lies at the distal tip of the germline in the hermaphrodite." .

obo:BTO_0001532 a rdfs:Class ;
  rdfs:label "rectal cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001510 .

obo:BTO_0002825 a rdfs:Class ;
  rdfs:label "SW-742 cell" ;
  rdfs:comment "Human colorectal tumor cell line." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0005602 a rdfs:Class ;
  rdfs:label "anterior paracentral gyrus" ;
  rdfs:comment "The anterior portion of the paracentral lobule, the medial continuation of the primary somatomotor cortex (precentral gyrus) in which the thigh, leg, and foot are represented." .

obo:BTO_0004753 a rdfs:Class ;
  rdfs:label "XP-V XP30RO cell" ;
  rdfs:comment "SV40-transformed polymerase- eta-deficient XP30RO fibroblasts were derived from an Xeroderma pigmentosum variant (XP-V) patient." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0000473 a rdfs:Class ;
  rdfs:label "fetal membrane" ;
  rdfs:comment "Any membrane that functions for the protection or nourishment of respiration or excretion of a developing fetus." .

obo:BTO_0004880 a rdfs:Class ;
  rdfs:label "Tu-113 cell" ;
  rdfs:comment "Human malignant glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0003982 a rdfs:Class ;
  rdfs:label "retinal stem cell" ;
  rdfs:comment "Retinal progenitor cell." ;
  rdfs:subClassOf obo:BTO_0002881 , obo:BTO_0004091 .

obo:BTO_0003877 a rdfs:Class ;
  rdfs:label "G-292 cell" ;
  rdfs:comment "Human osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002764 a rdfs:Class ;
  rdfs:label "PC6-13 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0002132 a rdfs:Class ;
  rdfs:label "SK-MEL-3 cell" ;
  rdfs:comment "Human melanoma established from the lymph node metastasis of a malignant melanoma from a 42-year-old Caucasian woman." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0005275 a rdfs:Class ;
  rdfs:label "HPK1A-ras cell" ;
  rdfs:comment "Malignant human keratinocyte cell line." .

obo:BTO_0003173 a rdfs:Class ;
  rdfs:label "endostyle" ;
  rdfs:comment "An endostyle is a longitudinal ciliated groove on the ventral wall of the pharynx which produces mucus to gather food particles. It is found in urochordates and cephalochordates, and in the larvae of lampreys. It aids in transporting food to the esophagus. The endostyle in larval lampreys (ammocetes) metamorphoses into the thyroid gland in adults, and is regarded as being homologous to the thyroid gland in vertebrates." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0001685 a rdfs:Class ;
  rdfs:label "aortic smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001431 .

obo:BTO_0000710 a rdfs:Class ;
  rdfs:label "latex" ;
  rdfs:comment "A milky usually white fluid that is produced by cells of various seed plants (as of the milkweed, spurge, and poppy families) and is the source of rubber, gutta-percha, chicle, and balata." .

obo:BTO_0002326 a rdfs:Class ;
  rdfs:label "breast apocrine carcinoma cell" ;
  rdfs:comment "A rare breast malignancy with a ductal or acinar growth pattern and apocrine secretions." ;
  rdfs:subClassOf obo:BTO_0000150 .

obo:BTO_0004320 a rdfs:Class ;
  rdfs:label "1682-A cell" ;
  rdfs:comment "1682A cell line was established from a primary hepatocellular carcinoma isolated from a male ACI rat treated with ethionine in a choline-deficient diet." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006082 a rdfs:Class ;
  rdfs:label "TSCCA cell" ;
  rdfs:comment "Oral squamous cell carcinoma cell line." .

obo:BTO_0000924 a rdfs:Class ;
  rdfs:label "nephron" ;
  rdfs:comment "A single excretory unit of the vertebrate kidney." .

obo:BTO_0005862 a rdfs:Class ;
  rdfs:label "culture condition:DL-erythro-3,5-diaminohexanoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003279 a rdfs:Class ;
  rdfs:label "V79MZh11B2 cell" ;
  rdfs:comment "Two cell lines derived from V79 chinese hamster cells were established to express human CYP11B1 and CYP11B2. They were called V79MZh11B1 and V79MZh11B2." ;
  rdfs:subClassOf obo:BTO_0001425 .

obo:BTO_0001727 a rdfs:Class ;
  rdfs:label "perianth" ;
  rdfs:comment "The floral structure comprised of the calyx and corolla especially when the two whorls are fused." .

obo:BTO_0002211 a rdfs:Class ;
  rdfs:label "oral squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002027 , obo:BTO_0002709 .

obo:BTO_0000033 a rdfs:Class ;
  rdfs:label "SW-403 cell" ;
  rdfs:comment "Human colon adenocarcinoma, established from the adenocarcinoma (grade III) of a 51-year-old Caucasian woman; cells were described to produce carcinoembryonic antigen (CEA) and to be tumorigenic in nude mice." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0004234 a rdfs:Class ;
  rdfs:label "UO-31 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0000594 a rdfs:Class ;
  rdfs:label "liver cancer cell" ;
  rdfs:comment "Malignant (cancer) cells are found in the tissues of the liver." .

obo:BTO_0006153 a rdfs:Class ;
  rdfs:label "nigrostriatal system" ;
  rdfs:comment "System relating to, or joining the corpus striatum and the substantia nigra. Referring to the efferent connection." .

obo:BTO_0003491 a rdfs:Class ;
  rdfs:label "SW-1990 cell" ;
  rdfs:comment "Human pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0006137 a rdfs:Class ;
  rdfs:label "Hs-27 cell" ;
  rdfs:comment "Human foreskin fibroblast cell line, established from a black newborn male." ;
  rdfs:subClassOf obo:BTO_0002245 .

obo:BTO_0002656 a rdfs:Class ;
  rdfs:label "sickle cell" ;
  rdfs:comment "An erythrocyte shaped like a sickle or crescent owing to the presence of hemoglobin S, seen in sickle cell anemia and other sickle cell diseases." ;
  rdfs:subClassOf obo:BTO_0000424 .

obo:BTO_0001151 a rdfs:Class ;
  rdfs:label "MOLT-4F cell" ;
  rdfs:comment "Human acute T lymphoblastic leukemia from peripheral blood." ;
  rdfs:subClassOf obo:BTO_0000873 .

obo:BTO_0000348 a rdfs:Class ;
  rdfs:label "omasum" ;
  rdfs:comment "The third division of the stomach of a ruminant animal, located between the abomasum and the reticulum." ;
  rdfs:subClassOf obo:BTO_0000480 .

obo:BTO_0006237 a rdfs:Class ;
  rdfs:label "culture condition:sugarcane bagasse-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006543 a rdfs:Class ;
  rdfs:label "HF-2303 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0000873 a rdfs:Class ;
  rdfs:label "MOLT-4 cell" ;
  rdfs:comment "Human T cell leukemia established from the peripheral blood of a 19-year-old man with acute lymphoblastic leukemia (ALL) in relapse in 1971; sister cell line of MOLT-3." ;
  rdfs:subClassOf obo:BTO_0002144 , obo:BTO_0002504 .

obo:BTO_0002775 a rdfs:Class ;
  rdfs:label "ANA-1 cell" ;
  rdfs:comment "The ANA-1 immortalized murine macrophage cell line was established by infecting the normal bone marrow of C57BL/6 mice with the murine recombinant 52 retrovirus (expressing the v-raf and v-myc oncogenes)." ;
  rdfs:subClassOf obo:BTO_0000264 , obo:BTO_0002278 .

obo:BTO_0004848 a rdfs:Class ;
  rdfs:label "PaCa-44 cell" ;
  rdfs:comment "Human pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0002166 a rdfs:Class ;
  rdfs:label "basidiospore" ;
  rdfs:comment "A type of sexual spore that forms on a basidium." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0004064 a rdfs:Class ;
  rdfs:label "chloragocyte" ;
  rdfs:comment "A chloragogen cell." ;
  rdfs:subClassOf obo:BTO_0004063 .

obo:BTO_0005351 a rdfs:Class ;
  rdfs:label "optic cup" ;
  rdfs:comment "The optic vesicle after invaginating to form a 2-layered cup from which the retina and pigmented layer of the eye will develop." .

obo:BTO_0005838 a rdfs:Class ;
  rdfs:label "head and neck cancer cell" ;
  rdfs:comment "Head and neck cancer is cancer that starts in the lip, oral cavity, nasal cavity, paranasal sinuses, pharynx, larynx or parotid glands." .

obo:BTO_0005878 a rdfs:Class ;
  rdfs:label "PA-TU-8988T cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line; established in 1985 from the liver metastasis of a primary pancreatic adenocarcinoma from a 64-year-old woman; sister cell line of PA-TU-8988S." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0004307 a rdfs:Class ;
  rdfs:label "hepatic artery" ;
  rdfs:comment "An artery that distributes blood to the liver, pancreas and gallbladder as well as to the stomach and duodenal portion of the small intestine." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0002005 a rdfs:Class ;
  rdfs:label "LN-18 cell" ;
  rdfs:comment "Human brain, cerebrum; right temporal lobe, glioblastoma; glioma; grade IV cell line; established from a 65 years old white male." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004011 a rdfs:Class ;
  rdfs:label "PNET-2 cell" ;
  rdfs:comment "Primitive neuronal human CNS neuroectodermal tumor cell line 2." ;
  rdfs:subClassOf obo:BTO_0000947 , obo:BTO_0004259 .

obo:BTO_0005794 a rdfs:Class ;
  rdfs:label "ophthalmic lavage fluid" .

obo:BTO_0003356 a rdfs:Class ;
  rdfs:label "BBm cell" ;
  rdfs:comment "Bos taurus bone marrow normal cell line." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0001972 a rdfs:Class ;
  rdfs:label "TBY-2 cell" ;
  rdfs:comment "BY-2 is a cell line of tobacco induced from a pith of Nicotiana tabacum L. cv. Bright Yellow No2 in 1968. This cell line was made by Dr. Kawashima at Hatano Tobacco Experimental Station of Japan Tobacco and Salt Public Cooporation." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0003801 a rdfs:Class ;
  rdfs:label "ovum" ;
  rdfs:comment "A female gamete." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0004137 a rdfs:Class ;
  rdfs:label "KCL-22 cell" ;
  rdfs:comment "A Philadelphia chromosome-positive cell line established from peripheral blood of a patient with chronic myelogenous leukemia in blast crisis." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0006333 a rdfs:Class ;
  rdfs:label "BM7 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line. A brain-metastatic clone derived from a high metastatic subline F4, which had higher invasion capability than its parental cell line CL1-0." .

obo:BTO_0000008 a rdfs:Class ;
  rdfs:label "culture condition:3-chlorobenzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006446 a rdfs:Class ;
  rdfs:label "CCD-1095Sk cell" ;
  rdfs:comment "Human normal skin fibroblast cell line, taken at biopsy from the left breast. The patient had infiltrating ductal carcinoma with associated Paget's disease of the nipple." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0005114 a rdfs:Class ;
  rdfs:label "TRAMP-C2 cell" ;
  rdfs:comment "This cell line was derived in 1996 from a heterogeneous 32 week primary tumor in the prostate of a PB-Tag C57BL/6 (TRAMP) mouse." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005135 a rdfs:Class ;
  rdfs:label "D-283MED cell" ;
  rdfs:comment "Human medulloblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001359 .

obo:BTO_0000336 a rdfs:Class ;
  rdfs:label "caput epididymis" ;
  rdfs:comment "The head of the epididymis." .

obo:BTO_0002087 a rdfs:Class ;
  rdfs:label "vitreous chamber of the eye" ;
  rdfs:comment "The space in the eyeball enclosing the vitreous humor, bounded anteriorly by the lens and ciliary body and posteriorly by the posterior wall of the eyeball." ;
  rdfs:subClassOf obo:BTO_0002085 .

obo:BTO_0005822 a rdfs:Class ;
  rdfs:label "cochlear hair cell" ;
  rdfs:comment "Sensory cells in the organ of Corti in synaptic contact with sensory as well as efferent fibers of the cochlear auditory nerve; from the apical end of each cell, about 100 stereocilia extend from the surface and make contact with the tectorial membrane. Any of the cilia on the free surface of the auditory cells." .

obo:BTO_0004228 a rdfs:Class ;
  rdfs:label "thymus lymphoma cell" ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0003353 a rdfs:Class ;
  rdfs:label "bEnd3 cell" ;
  rdfs:comment "Brain capillary endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003352 .

obo:BTO_0003888 a rdfs:Class ;
  rdfs:label "JHU-029 cell" ;
  rdfs:comment "Human head and neck squamous cell carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0006186 a rdfs:Class ;
  rdfs:label "air pouch cell" ;
  rdfs:comment "An air pouch is produced by subcutaneous injection of sterile air into the back of a mouse or rat. With the air pouch model large volumes of inflammatory exudates can be collected with relative ease. Injection of carrageenan solution or other inflammatory irritant (i.e. LPS, bradykinin), into the air pouch causes an inflammatory reaction." .

obo:BTO_0003731 a rdfs:Class ;
  rdfs:label "RCC-10RGB cell" ;
  rdfs:comment "Human renal cell carcinoma (RCC) cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0004538 a rdfs:Class ;
  rdfs:label "initial collecting tubule" ;
  rdfs:comment "The initial collecting tubule is a segment with a constitution similar as the collecting duct, but before the convergence with other tubules." .

obo:BTO_0002589 a rdfs:Class ;
  rdfs:label "H-7721 cell" ;
  rdfs:comment "Human hepatocarcinoma cell line." .

obo:BTO_0001272 a rdfs:Class ;
  rdfs:label "sperm flagellum" ;
  rdfs:comment "The posterior, filiform part of spermatozoa, which provides sperm motility." .

obo:BTO_0000527 a rdfs:Class ;
  rdfs:label "glioblastoma cell" ;
  rdfs:comment "Glioblastoma is a general term for malignant forms of astrocytoma." ;
  rdfs:subClassOf obo:BTO_0000100 .

obo:BTO_0003720 a rdfs:Class ;
  rdfs:label "UT-SCC-9 cell" ;
  rdfs:comment "Oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0001543 a rdfs:Class ;
  rdfs:label "metanephron" ;
  rdfs:comment "The primordium of the permanent kidney, which develops later than and caudal to the mesonephros, from the mesonephric duct and nephrogenic cord; Either member of the final and most caudal pair of the three successive pairs of vertebrate renal organs that functions as a permanent adult kidney in reptiles, birds, and mammals but is not present at all in lower forms." .

obo:BTO_0006106 a rdfs:Class ;
  rdfs:label "adrenal adenoma cell" ;
  rdfs:comment "A benign tumor of the adrenal cortex." ;
  rdfs:subClassOf obo:BTO_0000178 , obo:BTO_0000592 .

obo:BTO_0006544 a rdfs:Class ;
  rdfs:label "IN-859 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0000703 a rdfs:Class ;
  rdfs:label "lacquer" ;
  rdfs:comment "Any of various durable natural varnishes; especially: a varnish obtained from an Asian sumac (Rhus verniciflua)." .

obo:BTO_0003281 a rdfs:Class ;
  rdfs:label "planktonic cell" ;
  rdfs:comment "A plankton-like cell. That means the passively floating or weakly swimming usually minute animal and plant life of a body of water." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0005833 a rdfs:Class ;
  rdfs:label "plant gall" ;
  rdfs:comment "An abnormal growth of plant tissue caused by an organism, such as an insect, mite, or bacterium, or by a wound." .

obo:BTO_0000442 a rdfs:Class ;
  rdfs:label "fat body" ;
  rdfs:comment "A fatty tissue especially of nearly mature insect larvae that serves as a food reserve." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0002562 a rdfs:Class ;
  rdfs:label "A-1847 cell" ;
  rdfs:comment "Human ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0003771 a rdfs:Class ;
  rdfs:label "T2 cell" ;
  rdfs:comment "Human-human somatic cell hybrid cell line, established by PEG-mediated fusion of the B-lymphoblastoid cell line LCL 721.174 with an 8-azaguanine and ouabain-resistant variant of the T-LCL CEM. Subclone of the T1 cell line which has lost both CEM(R)-derived copies of chromosome 6." .

obo:BTO_0004978 a rdfs:Class ;
  rdfs:label "carotid sinus nerve" ;
  rdfs:comment "Carotid branch of glossopharyngeal nerve." .

obo:BTO_0001119 a rdfs:Class ;
  rdfs:label "procambium" ;
  rdfs:comment "The part of the primary meristem of a plant that forms cambium and primary vascular tissues." .

obo:BTO_0005552 a rdfs:Class ;
  rdfs:label "vertebral endplate" ;
  rdfs:comment "Vertebral end plates are the top and bottom portions of the vertebral bodies that interface with the vertebral discs. The vertebral end plate is composed of a layer of thickened cancellous bone." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0005769 a rdfs:Class ;
  rdfs:label "buccal mucosa cancer cell" .

obo:BTO_0002337 a rdfs:Class ;
  rdfs:label "culture condition:cellobiose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001712 a rdfs:Class ;
  rdfs:label "dorsal lip" ;
  rdfs:comment "The margin of the fold of blastula wall that delineates the dorsal limit of the blastopore, constitutes the primary organizer, and forms the point of origin of chordamesoderm." .

obo:BTO_0002291 a rdfs:Class ;
  rdfs:label "SP2/0-AG14 cell" ;
  rdfs:comment "SP2/0-AG14 is a hybrid between BALB/c spleen cells and the myeloma cell line P3X63AG8." ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0003024 a rdfs:Class ;
  rdfs:label "NCI-H146 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0004413 a rdfs:Class ;
  rdfs:label "CJ7 cell" ;
  rdfs:comment "Murine embryonic stem cell line." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0002456 a rdfs:Class ;
  rdfs:label "posterior paraventricular nucleus" ;
  rdfs:comment "The posterior of the two nuclei paraventriculares thalami." ;
  rdfs:subClassOf obo:BTO_0002460 .

obo:BTO_0003927 a rdfs:Class ;
  rdfs:label "metacercaria" ;
  rdfs:comment "A tailless encysted late larva of a trematode parasite that is usually the form which is infective for the definitive host." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0002982 a rdfs:Class ;
  rdfs:label "alpha-TC1.6 cell" ;
  rdfs:comment "Clonal mouse pancreatic alpha-cell line." ;
  rdfs:subClassOf obo:BTO_0002980 .

obo:BTO_0005998 a rdfs:Class ;
  rdfs:label "walking leg" ;
  rdfs:comment "At the thorax of a prawn there are five pairs of walking legs. They are used for crawling on the river bed. Of the five pairs of walking legs the first two pairs bear pincers at their free ends and are, therefore, called chelate legs; these along with the rostrum and the spines are regarded as organs of offence and defence." ;
  rdfs:subClassOf obo:BTO_0001503 .

obo:BTO_0006345 a rdfs:Class ;
  rdfs:label "glioblastoma multiforme cancer stem cell" ;
  rdfs:subClassOf obo:BTO_0004254 .

obo:BTO_0004247 a rdfs:Class ;
  rdfs:label "A-547 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0005119 a rdfs:Class ;
  rdfs:label "pleural mesothelioma cell" ;
  rdfs:comment "A cell from a tumor derived from pleural mesothelial tissue." ;
  rdfs:subClassOf obo:BTO_0002423 .

obo:BTO_0003371 a rdfs:Class ;
  rdfs:label "endometrial spiral artery" ;
  rdfs:comment "In women, rats and mice, the endometrial vessels are coiled and known as spiral arteries." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0002133 a rdfs:Class ;
  rdfs:label "SK-MEL-30 cell" ;
  rdfs:comment "Human melanoma derived from tumor tissue (subcutis metastasis) of a 67-year-old Caucasian man with malignant melanoma in 1975." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0006355 a rdfs:Class ;
  rdfs:label "MS-1 cell" ;
  rdfs:comment "Normal mouse pancreatic islet endothelial cell line established in 1994." ;
  rdfs:subClassOf obo:BTO_0000183 .

obo:BTO_0003057 a rdfs:Class ;
  rdfs:label "NB2-Sp cell" ;
  rdfs:comment "Prolactin-independent subline of NB-2." .

obo:BTO_0003223 a rdfs:Class ;
  rdfs:label "terminal bronchiole" ;
  rdfs:comment "The end of the nonrespiratory conducting airway; The lining is simple columnar or cuboidal epithelium without mucous goblet cells; most of the cells are ciliated, but a few nonciliated serous secreting cells occur." .

obo:BTO_0006298 a rdfs:Class ;
  rdfs:label "HepAD38 cell" ;
  rdfs:comment "HepAD38 is a stably transfected hepatoblastoma cell line that replicates human HBV under the control of a tetracycline-regulated promoter." ;
  rdfs:subClassOf obo:BTO_0001664 .

obo:BTO_0003332 a rdfs:Class ;
  rdfs:label "culture condition:glycolate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000444 a rdfs:Class ;
  rdfs:label "fat pad" ;
  rdfs:comment "An accumulation of adipose tissue (fat cells) enclosed in fibrous tissue." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0000462 a rdfs:Class ;
  rdfs:label "fiddlehead" ;
  rdfs:comment "The coiled young frond of any of various ferns, some of which are considered a delicacy when cooked." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003213 a rdfs:Class ;
  rdfs:label "lung epithelium cell line" ;
  rdfs:subClassOf obo:BTO_0000353 , obo:BTO_0002637 .

obo:BTO_0003859 a rdfs:Class ;
  rdfs:label "C-28/I2 cell" ;
  rdfs:comment "Immortalized human chondrocyte cell line." .

obo:BTO_0005216 a rdfs:Class ;
  rdfs:label "keratocyst" ;
  rdfs:comment "Cysts found in the jaws and arising from epithelium involved in tooth formation. They include follicular cysts (e.g., primordial cyst, dentigerous cyst, multilocular cyst), lateral periodontal cysts, and radicular cysts. They may become keratinized (odontogenic keratocysts). Follicular cysts may give rise to ameloblastomas and, in rare cases, undergo malignant transformation." .

obo:BTO_0001257 a rdfs:Class ;
  rdfs:label "flexor" ;
  rdfs:comment "A muscle that when contracted acts to bend a joint or limb in the body." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0005709 a rdfs:Class ;
  rdfs:label "IGR-3 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000850 a rdfs:Class ;
  rdfs:label "amelanotic melanoma cell" ;
  rdfs:comment "A cell of unpigmented malignant melanoma." ;
  rdfs:subClassOf obo:BTO_0000848 .

obo:BTO_0002061 a rdfs:Class ;
  rdfs:label "bronchogenic carcinoma cell" ;
  rdfs:comment "Any of a large group of carcinomas of the lung, so called because they arise from the epithelium of the bronchial tree. Four primary subtypes are distinguished: adenocarcinoma of the lung, large cell carcinoma, small cell carcinoma, and squamous cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0000551 .

obo:BTO_0005479 a rdfs:Class ;
  rdfs:label "SUM-229PE cell" ;
  rdfs:comment "Human breast cancer cell line, derived from primary human luminal breast epithelial cells of a pleural effusion." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0004528 a rdfs:Class ;
  rdfs:label "high endothelial venule" ;
  rdfs:comment "Specialized area of vascular endothelium found in lymphoid organs, which express a variety of cell-adhesion molecules and is involved in lymphocyte extravasation." .

obo:BTO_0002029 a rdfs:Class ;
  rdfs:label "myoma cell" ;
  rdfs:comment "A cell of a benign tumor made up of muscular elements." .

obo:BTO_0000798 a rdfs:Class ;
  rdfs:label "BeWo cell" ;
  rdfs:comment "Human placenta choriocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001575 .

obo:BTO_0005560 a rdfs:Class ;
  rdfs:label "C8-MEF cell" ;
  rdfs:comment "Mouse embryonic fibroblast cell line oncogenically transformed with both E1A and ras, and containing wild-type p53." ;
  rdfs:subClassOf obo:BTO_0002572 .

obo:BTO_0002494 a rdfs:Class ;
  rdfs:label "mesangium" ;
  rdfs:comment "The thin membrane that helps support the capillary loops in a renal glomerulus." .

obo:BTO_0004586 a rdfs:Class ;
  rdfs:label "alevin" ;
  rdfs:comment "A young fish; especially: a newly hatched salmon when still attached to the yolk sac." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0001380 a rdfs:Class ;
  rdfs:label "mesentery" ;
  rdfs:comment "One or more vertebrate membranes that consist of a double fold of the peritoneum and invest the intestines and their appendages and connect them with the dorsal wall of the abdominal cavity." .

obo:BTO_0000226 a rdfs:Class ;
  rdfs:label "gitter cell" ;
  rdfs:comment "A microglial cell that is globular and swollen after having phagocytized debris from cells destroyed pathologically in the central nervous system." ;
  rdfs:subClassOf obo:BTO_0000078 .

obo:BTO_0000729 a rdfs:Class ;
  rdfs:label "carcinoid cell" ;
  rdfs:comment "A cell of a benign or malignant tumor arising especially from the mucosa of the gastrointestinal tract." ;
  rdfs:subClassOf obo:BTO_0001533 .

obo:BTO_0001911 a rdfs:Class ;
  rdfs:label "lung adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0000762 .

obo:BTO_0000796 a rdfs:Class ;
  rdfs:label "P-1798 cell" ;
  rdfs:comment "Mouse T-lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0001246 a rdfs:Class ;
  rdfs:label "flexor digitorum profundus" ;
  rdfs:comment "A deep muscle of the ulnar side of the forearm that flexes especially the terminal phalanges of the four fingers." ;
  rdfs:subClassOf obo:BTO_0000479 , obo:BTO_0001257 .

obo:BTO_0003293 a rdfs:Class ;
  rdfs:label "Rat-1 cell" ;
  rdfs:comment "Rattus norvegicus connective tissue fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0001658 a rdfs:Class ;
  rdfs:label "aerial part" ;
  rdfs:comment "Existing or growing in the air rather than in the ground or in water." .

obo:BTO_0005586 a rdfs:Class ;
  rdfs:label "polar cell" .

obo:BTO_0005391 a rdfs:Class ;
  rdfs:label "SUM-225 cell" ;
  rdfs:comment "Human breast cancer cell line." .

obo:BTO_0001061 a rdfs:Class ;
  rdfs:label "PC-3 cell" ;
  rdfs:comment "Human prostate carcinoma cell line; established from the bone marrow metastasis isolated post-mortem from a 62-year-old Caucasian man with grade IV prostate cancer, poorly differentiated adenocarcinoma, after androgen suppression therapy; described to form tumors in nude mice, to grow in soft agar, and to be unresponsive to androgen treatment." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0004968 a rdfs:Class ;
  rdfs:label "NS-0 cell" ;
  rdfs:comment "Mouse myeloma cell line." .

obo:BTO_0000345 a rdfs:Class ;
  rdfs:label "digestive gland" ;
  rdfs:comment "A gland, such as the liver or pancreas, that secretes into the alimentary canal substances necessary for digestion." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0001821 a rdfs:Class ;
  rdfs:label "subesophageal ganglion" ;
  rdfs:comment "Nerve centre at the junction of the circumoesophageal connectives and the ventral nerve cord." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0001738 a rdfs:Class ;
  rdfs:label "histiocytic lymphoma cell" ;
  rdfs:comment "The most common aggressive form of non-Hodgkin lymphoma. It occurs in both diffuse and nodular form. The large cells may have cleaved and non-cleaved nuclei." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0004361 a rdfs:Class ;
  rdfs:label "callus culture" ;
  rdfs:comment "The callus culture is a technique of tissue culture, it is usually carried out on solidified gel medium in the presence of growth regulators and initiated by inoculation of small explants or sections from established organ or other cultures (the inocula). Plant cell calluses may be made to differentiate into the specialized tissues of a whole new plant, with the addition of a number of hormones or enzymes. This is an ability known as totipotency. Callus cultures can be indefinitely maintained through regular sub-culturing." ;
  rdfs:subClassOf obo:BTO_0001384 .

obo:BTO_0001180 a rdfs:Class ;
  rdfs:label "idioblast" ;
  rdfs:comment "A plant cell committed to develop into a cell type that differs from the surrounding tissue." .

obo:BTO_0003916 a rdfs:Class ;
  rdfs:label "plant culture" ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0006179 a rdfs:Class ;
  rdfs:label "cardiac tube" ;
  rdfs:comment "The primordial tubular heart in the embryo, before its division into chambers." .

obo:BTO_0006338 a rdfs:Class ;
  rdfs:label "excretory system" ;
  rdfs:comment "Four distinctive cell types make up the excretory system of the worm Caenorhabditis elegans: one pore cell, one duct cell, one canal cell and a fused pair of gland cells." ;
  rdfs:subClassOf obo:BTO_0001806 .

obo:BTO_0005861 a rdfs:Class ;
  rdfs:label "SK-MEL-24 cell" ;
  rdfs:comment "Human malignant melanoma cell line, derived from a lymph node metastasis of a 67 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0003354 a rdfs:Class ;
  rdfs:label "B-cell chronic lymphocytic leukemia cell" ;
  rdfs:subClassOf obo:BTO_0001546 .

obo:BTO_0005928 a rdfs:Class ;
  rdfs:label "PL-21 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established from the peripheral blood of a 24-year-old man with refractory acute promyelocytic leukemia after mediastinal granulocytic sarcoma." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004169 a rdfs:Class ;
  rdfs:label "MHCC97-H cell" ;
  rdfs:comment "Clone of MHCC97 with high metastatic potential." .

obo:BTO_0005335 a rdfs:Class ;
  rdfs:label "UKRV-Mel-2 cell" ;
  rdfs:comment "Human malignant melanoma cell line, established from pleural effusion." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002198 a rdfs:Class ;
  rdfs:label "OC/CDE22 cell" ;
  rdfs:comment "Gamma-Glutamyl transpeptidase (GGT)-negative, non-tumorigenic rat liver oval cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0004622 a rdfs:Class ;
  rdfs:label "OCI-M1 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established from erythroleukemia blasts, AML M6, of a 62-year-old patient following a 7-year chlorambucil treatment for chronic lymphocytic leukemia." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0001514 a rdfs:Class ;
  rdfs:label "biliary epithelial cell" ;
  rdfs:subClassOf obo:BTO_0000414 .

obo:BTO_0006080 a rdfs:Class ;
  rdfs:label "hESC cell" ;
  rdfs:comment "Human embryonic stem cell." ;
  rdfs:subClassOf obo:BTO_0006079 .

obo:BTO_0003315 a rdfs:Class ;
  rdfs:label "UM-SCC-2 cell" ;
  rdfs:comment "Carcinoma cell line of the human head and neck (HNSCC)." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0002302 a rdfs:Class ;
  rdfs:label "inferior mesenteric artery" ;
  rdfs:comment "Origin: Abdominal aorta, branches, left colic, sigmoid, and superior rectal arteries. Distribution: descending colon, rectum." ;
  rdfs:subClassOf obo:BTO_0000779 .

obo:BTO_0004180 a rdfs:Class ;
  rdfs:label "NCCIT cell" ;
  rdfs:comment "Human pluripotent embryonal carcinoma, teratocarcinoma cell line; established in 1985 from a mediastinal mixed germ cell tumor of an adult Japanese male. This pluripotent stem cell line is capable of somatic and extraembryonic differentiation." ;
  rdfs:subClassOf obo:BTO_0000306 .

obo:BTO_0001294 a rdfs:Class ;
  rdfs:label "sporulating cell" ;
  rdfs:subClassOf obo:BTO_0001434 .

obo:BTO_0003747 a rdfs:Class ;
  rdfs:label "superficial temporal artery" ;
  rdfs:comment "In human anatomy, the superficial temporal artery is a major artery of the head. It arises from the external carotid artery when it bifurcates into the superficial temporal artery and maxillary artery." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0002234 a rdfs:Class ;
  rdfs:label "culture-condition:L-arginine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003127 a rdfs:Class ;
  rdfs:label "human bone marrow endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0003126 .

obo:BTO_0004376 a rdfs:Class ;
  rdfs:label "dorsal globus pallidus" .

obo:BTO_0002206 a rdfs:Class ;
  rdfs:label "small cell lung cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0003115 a rdfs:Class ;
  rdfs:label "major vestibular gland" ;
  rdfs:comment "Either of two small reddish yellow bodies in the vestibular bulbs, one on each side of the vaginal orifice; they are homologues of the bulbourethral glands in the male." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0000949 a rdfs:Class ;
  rdfs:label "Novikoff ascites tumor cell" ;
  rdfs:subClassOf obo:BTO_0001330 .

obo:BTO_0003252 a rdfs:Class ;
  rdfs:label "uterine leiomyoma cell line" .

obo:BTO_0006551 a rdfs:Class ;
  rdfs:label "NS-5 cell" ;
  rdfs:comment "Mouse neural stem cell line." ;
  rdfs:subClassOf obo:BTO_0002891 .

obo:BTO_0004359 a rdfs:Class ;
  rdfs:label "paw" ;
  rdfs:comment "The foot of a quadruped, as a lion or dog, that has claws." ;
  rdfs:subClassOf obo:BTO_0000476 .

obo:BTO_0001951 a rdfs:Class ;
  rdfs:label "HOS-TE85 cell" ;
  rdfs:comment "Human, Caucasian, bone, osteosarcoma cell line; established from a 13-years old caucasian female." .

obo:BTO_0005066 a rdfs:Class ;
  rdfs:label "MRC-5V1 cell" ;
  rdfs:comment "Human lung fibroblast cell line transformed with simian virus 40, MRC-5 cells are their untransformed progenitors." .

obo:BTO_0005369 a rdfs:Class ;
  rdfs:label "HMPOS cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0004979 a rdfs:Class ;
  rdfs:label "glossopharyngeal nerve" ;
  rdfs:comment "The glossopharyngeal nerve is the ninth (IX) of twelve pairs of cranial nerves. It exits the brainstem out from the sides of the upper medulla, just rostral (closer to the nose) to the vagus nerve." ;
  rdfs:subClassOf obo:BTO_0001104 .

obo:BTO_0001733 a rdfs:Class ;
  rdfs:label "gynoecium" ;
  rdfs:comment "The female reproductive organs of a flower; the pistil or pistils considered as a group." .

obo:BTO_0005108 a rdfs:Class ;
  rdfs:label "culture condition:pyrrole-2-carboxylate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000989 a rdfs:Class ;
  rdfs:label "taste bud" ;
  rdfs:comment "An end organ mediating the sensation of taste and lying chiefly in the epithelium of the tongue." .

obo:BTO_0005380 a rdfs:Class ;
  rdfs:label "Rh-18 cell" ;
  rdfs:comment "Human rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0004871 a rdfs:Class ;
  rdfs:label "NB-39 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001463 a rdfs:Class ;
  rdfs:label "wing" ;
  rdfs:comment "1: One of the movable feathered or membranous paired appendages by means of which a bird, bat, or insect is able to fly; also: such an appendage even though rudimentary if possessed by an animal belonging to a group characterized by the power of flight. 2: Any of various anatomical structures especially of a flying fish or flying lemur providing means of limited flight." ;
  rdfs:subClassOf obo:BTO_0001729 .

obo:BTO_0005470 a rdfs:Class ;
  rdfs:label "RPK-1 cell" ;
  rdfs:comment "Parental and gemcitabine resistant pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0002553 a rdfs:Class ;
  rdfs:label "non-small cell lung cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0003477 a rdfs:Class ;
  rdfs:label "SK-HEP-1 cell" ;
  rdfs:comment "Human liver adenocarcinoma cell line; established from the ascites of a 52-year-old Caucasian man in 1971." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000122 a rdfs:Class ;
  rdfs:label "bile duct" ;
  rdfs:comment "Any of the ducts that convey bile in and from the liver." .

obo:BTO_0006272 a rdfs:Class ;
  rdfs:label "EM-E6E7TERT-1 cell" ;
  rdfs:comment "Immortalized endometrial glandular cells with normal structural and functional characteristics." ;
  rdfs:subClassOf obo:BTO_0006271 .

obo:BTO_0002313 a rdfs:Class ;
  rdfs:label "immature cell" ;
  rdfs:comment "Not fully grown or developed." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0003905 a rdfs:Class ;
  rdfs:label "HPENC cell" ;
  rdfs:comment "Human prostate epithelium normal cell line." ;
  rdfs:subClassOf obo:BTO_0002398 .

obo:BTO_0005293 a rdfs:Class ;
  rdfs:label "NCI-H2347 cell" ;
  rdfs:comment "Human lung adenocarcinoma; non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002553 .

obo:BTO_0002281 a rdfs:Class ;
  rdfs:label "YZI-1S cell" ;
  rdfs:comment "Photomixotrophically cultured tobacco cells (Nicotiana tabacum L. cv. Samsun NN)." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0001621 a rdfs:Class ;
  rdfs:label "intestinal cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000489 .

obo:BTO_0005138 a rdfs:Class ;
  rdfs:label "MTC-1 cell" ;
  rdfs:comment "A mouse T cell hybridoma cell line that constitutively expresses CD103." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0006128 a rdfs:Class ;
  rdfs:label "spinothalamic tract" ;
  rdfs:comment "The spinothalamic tract is a sensory pathway from the skin to the thalamus. From the ventral posterolateral nucleus in the thalamus, sensory information is relayed upward to the somatosensory cortex of the postcentral gyrus." .

obo:BTO_0004506 a rdfs:Class ;
  rdfs:label "RT-2 cell" ;
  rdfs:comment "Rat glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003046 a rdfs:Class ;
  rdfs:label "neurofibroma cell" ;
  rdfs:comment "A usually benign tumor of peripheral nerves caused by abnormal proliferation of Schwann cells." ;
  rdfs:subClassOf obo:BTO_0003045 .

obo:BTO_0005163 a rdfs:Class ;
  rdfs:label "COLO-16 cell" ;
  rdfs:comment "Human squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004438 .

obo:BTO_0003426 a rdfs:Class ;
  rdfs:label "fourth ventricle" ;
  rdfs:comment "The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. The fourth ventricle extends from the cerebral aqueduct (aqueduct of Sylvius) to the obex, and is filled with cerebrospinal fluid (CSF). The fourth ventricle has a characteristic diamond shape in cross-sections of the human brain. It is located within the pons or in the upper part of the medulla." .

obo:BTO_0001519 a rdfs:Class ;
  rdfs:label "endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0001120 .

obo:BTO_0005178 a rdfs:Class ;
  rdfs:label "PWR-1E cell" ;
  rdfs:comment "Human prostatic epithelial cells, derived from a normal prostate with mild hyperplasia, were immortalized with an adenovirus 12-SV40 hybrid virus (Ad12-SV40). PWR-1E cell line was derived by single cell cloning of a non-producer cell." ;
  rdfs:subClassOf obo:BTO_0002398 .

obo:BTO_0001235 a rdfs:Class ;
  rdfs:label "seminiferous tubule" ;
  rdfs:comment "One of two or three twisted, curved tubules in each lobule of the testis in which spermatozoa develop." .

obo:BTO_0004000 a rdfs:Class ;
  rdfs:label "M-28-K cell" ;
  rdfs:comment "Human mesothelioma cell line." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0004225 a rdfs:Class ;
  rdfs:label "striatal neuron" ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0000162 a rdfs:Class ;
  rdfs:label "culture condition:butyrate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001427 a rdfs:Class ;
  rdfs:label "vas deferens" ;
  rdfs:comment "A spermatic duct especially of a higher vertebrate that in the human male is a thick-walled tube about two feet (0.61 meters) long that begins at and is continuous with the tail of the epididymis and eventually joins the duct of the seminal vesicle to form the ejaculatory duct." ;
  rdfs:subClassOf obo:BTO_0003096 .

obo:BTO_0003307 a rdfs:Class ;
  rdfs:label "L6E9 cell" ;
  rdfs:comment "Rat myoblast cell line." .

obo:BTO_0005611 a rdfs:Class ;
  rdfs:label "B16-BL6T cell" ;
  rdfs:comment "Highly metastatic murine melanoma overexpressing PKC delta BL6 (BL6T) and wild type (BL6) cell line." .

obo:BTO_0005155 a rdfs:Class ;
  rdfs:label "CEM-VBL100 cell" ;
  rdfs:comment "The CEM-VBL100 cell line is a multidrug-resistant variant of the derivative of the CCRF-CEM cell line." .

obo:BTO_0003951 a rdfs:Class ;
  rdfs:label "medial longitudinal fasciculus" ;
  rdfs:comment "A pair of crossed fiber tracts, one on each side of the brainstem. These bundles of axons are situated near the midline of the brainstem and are composed of both ascending and descending fibers that arise from a number of sources and terminate in different areas. It carries information about the direction that the eyes should move." ;
  rdfs:subClassOf obo:BTO_0002191 .

obo:BTO_0000764 a rdfs:Class ;
  rdfs:label "lung fibroblast" ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0004916 a rdfs:Class ;
  rdfs:label "ZR-78 cell" ;
  rdfs:comment "ZR-78 is a peroxisome-deficient mutant cell line obtained from ethyl methanesulfonate-treated stocks of CHO-K1." .

obo:BTO_0003819 a rdfs:Class ;
  rdfs:label "culture condition:ethene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000189 a rdfs:Class ;
  rdfs:label "small cell lung cancer cell" ;
  rdfs:comment "A cell of a common, highly malignant form of bronchogenic carcinoma in the wall of a major bronchus, occurring mainly in middle-aged individuals with a history of tobacco smoking; it is radiosensitive and has small oval undifferentiated cells that are intensely hematoxyphilic. Metastasis to the hilum and to mediastinal lymph nodes is common." ;
  rdfs:subClassOf obo:BTO_0002061 .

obo:BTO_0003787 a rdfs:Class ;
  rdfs:label "intraparietal sulcus" ;
  rdfs:comment "A horizontal sulcus extending back from the postcentral sulcus over some distance, then dividing perpendicularly into two branches so as to form, with the postcentral sulcus, a figure H. It divides the parietal lobe into superior and inferior parietal lobules." .

obo:BTO_0006287 a rdfs:Class ;
  rdfs:label "MGH-U3 cell" ;
  rdfs:comment "MGH-U3 and -U4, derived respectively from a grade 1 tumor and an urothelium biopsy with severe atypia, are likely to be independent human bladder cell lines and different from other transitional cell bladder carcinoma cell lines reported." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0004539 a rdfs:Class ;
  rdfs:label "connecting tubule" ;
  rdfs:comment "With respect to the renal corpuscle, the connecting tubule is the most proximal part of the collecting duct system. It is adjacent to the distal convoluted tubule, the most distal segment of the renal tubule. Connecting tubules from several adjacent nephrons merge to form cortical collecting tubules, and these may join to form cortical collecting ducts. Connecting tubules of some juxtamedullary nephrons may arch upward, forming an arcade. The connecting tubule derives from the metanephric blastema, but the rest of the system derives from the ureteric bud. Because of this, some sources group the connecting tubule as part of the nephron, rather than grouping it with the collecting duct system." .

obo:BTO_0004336 a rdfs:Class ;
  rdfs:label "THC-252 cell" ;
  rdfs:comment "Rapamycin-resistant rat hepatic cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0004886 a rdfs:Class ;
  rdfs:label "PC-10 cell" ;
  rdfs:comment "Human non-small cell lung cancer (NSCLC) cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004665 a rdfs:Class ;
  rdfs:label "iliac artery" ;
  rdfs:comment "Either of the large arteries supplying blood to the lower trunk and hind limbs and arising by bifurcation of the aorta which in humans occurs at the level of the fourth lumbar vertebra to form one vessel for each side of the body." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0001922 a rdfs:Class ;
  rdfs:label "ommatidium" ;
  rdfs:comment "One of the elements corresponding to a small simple eye that make up the compound eye of an arthropod." .

obo:BTO_0004267 a rdfs:Class ;
  rdfs:label "follicular dendritic cell" ;
  rdfs:comment "A cell of the immune system found in lymph follicles." .

obo:BTO_0001145 a rdfs:Class ;
  rdfs:label "pre-T-lymphocyte" ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0005923 a rdfs:Class ;
  rdfs:label "SNU-1214 cell" ;
  rdfs:comment "Human laryngeal squamous cell carcinoma cell line; established from Korean patients." ;
  rdfs:subClassOf obo:BTO_0005921 .

obo:BTO_0001608 a rdfs:Class ;
  rdfs:label "feather calamus" ;
  rdfs:comment "The hollow basal portion of a feather below the vane." .

obo:BTO_0003913 a rdfs:Class ;
  rdfs:label "mIMCD-3 cell" ;
  rdfs:comment "Mouse renal inner medullary collecting duct (IMCD) cell line; SV40 transformed from an adult mouse." ;
  rdfs:subClassOf obo:BTO_0003912 .

obo:BTO_0005597 a rdfs:Class ;
  rdfs:label "Langhans giant cell" ;
  rdfs:comment "Langhans giant cells are large cells found in granulomatous conditions. They are formed by the fusion of epithelioid cells (macrophages), and contain nuclei arranged in a horseshoe-shaped pattern in the cell periphery. Although traditionally their presence was associated with tuberculosis, they are not specific for tuberculosis or even for mycobacterial disease. In fact, they are found in nearly every form of granulomatous disease, regardless of etiology." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0005026 a rdfs:Class ;
  rdfs:label "HTOXAR-3 cell" ;
  rdfs:comment "An oxaliplatin resistant cell line, established from human HT29 CRC cells." .

obo:BTO_0004452 a rdfs:Class ;
  rdfs:label "LN-702 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003043 a rdfs:Class ;
  rdfs:label "JJ012-TS4 cell" ;
  rdfs:comment "Human chondrosarcoma cell line." .

obo:BTO_0005279 a rdfs:Class ;
  rdfs:label "Caco-2/15 cell" ;
  rdfs:comment "Human colon carcinoma cell line." .

obo:BTO_0005684 a rdfs:Class ;
  rdfs:label "MYP-30 cell" ;
  rdfs:comment "A pig endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0002397 a rdfs:Class ;
  rdfs:label "prostate gland epithelium" ;
  rdfs:comment "Normal prostatic epithelium is composed of basal and luminal cells." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0001391 a rdfs:Class ;
  rdfs:label "tracheal smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001660 .

obo:BTO_0001867 a rdfs:Class ;
  rdfs:label "NR-6 cell" ;
  rdfs:comment "Mouse fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0001687 a rdfs:Class ;
  rdfs:label "asynchronous muscle" ;
  rdfs:comment "Asynchronous muscle is that type of muscle which, when turned on by neural input and resulting muscle action potentials, can contract in an oscillatory manner if attached to an appropriate, resonant load such as is offered in life by an insects wings and thorax. The frequency of the oscillatory contractions is different from, and typically much higher than, that of the activating neuronal impulses. Asynchronous muscle is so-named because during oscillation there is no direct correspondence between individual muscle contractions and muscle action potentials, which contrasts with synchronous muscle in which there is a 1:1 correspondence between muscle contractions and muscle action potentials or bursts of action potentials. Asynchronous muscle is only known to occur in insects. The muscles that power flight in dipteran flies, beetles, many of the true bugs and in some, but perhaps not all, bees and wasps are asynchronous muscles, as are the singing muscles of some cicadas." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0004253 a rdfs:Class ;
  rdfs:label "plant candle" ;
  rdfs:comment "The new vegetative growth of Pinus taeda plants in the center surrounded by young male cones. This young growth is called a candle and will expand into stem and needles." ;
  rdfs:subClassOf obo:BTO_0001243 .

obo:BTO_0004927 a rdfs:Class ;
  rdfs:label "THP-8 cell" ;
  rdfs:comment "Human acute lymphoblastic leukemia cell line from two children with null cell type ALL." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0002976 a rdfs:Class ;
  rdfs:label "abdominal aorta" ;
  rdfs:comment "Abdominal part of aorta: the distal part of the descending aorta, which is the continuation of the thoracic part and gives rise to the inferior phrenic, lumbar, median sacral, superior and inferior mesenteric, middle suprarenal, renal, and testicular or ovarian arteries, and celiac trunk." .

obo:BTO_0000501 a rdfs:Class ;
  rdfs:label "gastric juice" ;
  rdfs:comment "A thin watery acid digestive fluid secreted by glands in the mucous membrane of the stomach." ;
  rdfs:subClassOf obo:BTO_0000346 .

obo:BTO_0000324 a rdfs:Class ;
  rdfs:label "culture condition:D-arabinose-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0002579 a rdfs:Class ;
  rdfs:label "IEC-CF7 cell" ;
  rdfs:comment "Rat intestine-derived IEC-6 cells stably expressing cystic fibrosis transmembrane conductance regulator (CFTR)." .

obo:BTO_0000280 a rdfs:Class ;
  rdfs:label "cone" ;
  rdfs:comment "A mass of ovule-bearing or pollen-bearing scales or bracts in trees of the pine family or in cycads that are arranged usually on a somewhat elongated axis." ;
  rdfs:subClassOf obo:BTO_0000469 .

obo:BTO_0003956 a rdfs:Class ;
  rdfs:label "N-38 cell" ;
  rdfs:comment "TCAP-1-responsive mouse hypothalamic cell line." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0003387 a rdfs:Class ;
  rdfs:label "raphe nucleus" ;
  rdfs:comment "Any of several groups of nerve cells situated along or near the median plane of the tegmentum of the midbrain." .

obo:BTO_0002690 a rdfs:Class ;
  rdfs:label "biofilm" ;
  rdfs:comment "A thin usually resistant layer of microorganisms (as bacteria) that form on and coat various surfaces (as of water pipes and catheters)." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0001610 a rdfs:Class ;
  rdfs:label "thyroid cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001876 .

obo:BTO_0005049 a rdfs:Class ;
  rdfs:label "prostate adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0001033 .

obo:BTO_0004006 a rdfs:Class ;
  rdfs:label "OC-3 cell" ;
  rdfs:comment "Human oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0004062 a rdfs:Class ;
  rdfs:label "RPMI-7932 cell" ;
  rdfs:comment "Human melanoma cell line (Bowes)." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001961 a rdfs:Class ;
  rdfs:label "MFM-223 cell" ;
  rdfs:comment "Human breast carcinoma; established from the pleural effusion of a post-menopausal breast cancer patient without any prior treatment (tumor: widespread ductal mammary carcinoma T4 N2 M1 with histological grade III); cells were described to express androgen, estrogen and progesterone receptors." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0003635 a rdfs:Class ;
  rdfs:label "esophageal squamous epithelium" ;
  rdfs:subClassOf obo:BTO_0001578 , obo:BTO_0002072 .

obo:BTO_0005345 a rdfs:Class ;
  rdfs:label "Ma-Mel-47 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001589 a rdfs:Class ;
  rdfs:label "KLN205 cell" ;
  rdfs:comment "Mus musculus (mouse);lung; squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0006261 a rdfs:Class ;
  rdfs:label "HL-60/S cell" ;
  rdfs:comment "Promyeloblastic cell line differentiated to neutrophils or macrophages by tumor promoters, vitamine D3 or cytokines." .

obo:BTO_0000296 a rdfs:Class ;
  rdfs:label "SW-1088 cell" ;
  rdfs:comment "Brain astrocytoma cell line. The SW 1088 cell line was initiated by A. Leibovitz at the Scott and White Clinic, Temple, Texas in 1975 from an astrocytoma taken from a 72 year old male Caucasian." ;
  rdfs:subClassOf obo:BTO_0000101 .

obo:BTO_0004488 a rdfs:Class ;
  rdfs:label "NSC-34 cell" ;
  rdfs:comment "NSC-34 is a hybrid cell line, produced by fusion of motor neuron enriched, embryonic mouse spinal cord cells with mouse neuroblastoma." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0002274 a rdfs:Class ;
  rdfs:label "BHT-101 cell" ;
  rdfs:comment "Human thyroid carcinoma cell line; established from the lymph node metastasis of a 63-year-old woman with anaplastic papillary thyroid carcinoma." ;
  rdfs:subClassOf obo:BTO_0003209 , obo:BTO_0003210 .

obo:BTO_0003882 a rdfs:Class ;
  rdfs:label "blastocyte" ;
  rdfs:comment "An undifferentiated embryonic cell." .

obo:BTO_0004585 a rdfs:Class ;
  rdfs:label "acute promyelocytic leukemia cell" ;
  rdfs:comment "A subtype of acute myelogenous leukemia (AML), a cancer of the blood and bone marrow. In APL, there is an abnormal accumulation of immature granulocytes called promyelocytes." ;
  rdfs:subClassOf obo:BTO_0001545 .

obo:BTO_0000722 a rdfs:Class ;
  rdfs:label "leg muscle" ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0002847 a rdfs:Class ;
  rdfs:label "thecoma cell" ;
  rdfs:comment "A fibroidlike tumor of the ovary containing yellow areas of lipoid material derived from theca cells. It may be associated with excessive production of estrogen and have a tendency to cystic degeneration. These tumors are rarely composed entirely of theca cells; commonly both theca and granulosa cells are found." ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0003542 a rdfs:Class ;
  rdfs:label "LAN-1 cell" ;
  rdfs:comment "The LAN-1 clone, a cell line derived from a human neuroblastoma, possesses muscarinic receptors." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001050 a rdfs:Class ;
  rdfs:label "culture condition:phenol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001814 a rdfs:Class ;
  rdfs:label "leaf tip" ;
  rdfs:comment "The outer end of a leaf; the end that is opposite the petiole." .

obo:BTO_0002568 a rdfs:Class ;
  rdfs:label "Colo-201 cell" ;
  rdfs:comment "Human colonic adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0004321 a rdfs:Class ;
  rdfs:label "2BN cell" ;
  rdfs:comment "Primary skin fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001541 a rdfs:Class ;
  rdfs:label "pronephros" ;
  rdfs:comment "1. The primordial kidney; a vestigial excretory structure or its rudiments developing in the embryo at four weeks, before the mesonephros. Although nonfunctional, its duct is later used by the mesonephros, which arises caudal to it. 2. The definitive excretory organ of primitive fishes." .

obo:BTO_0002144 a rdfs:Class ;
  rdfs:label "acute lymphoblastic leukemia cell line" ;
  rdfs:comment "Lymphocytic leukemia cell line that is marked by an abnormal increase in the number of lymphoblasts, that is characterized by rapid onset and progression of symptoms which include fever, anemia, pallor, fatigue, appetite loss, bleeding, thrombocytopenia, granulocytopenia, bone and joint pain, and enlargement of the lymph nodes, liver, and spleen, and that occurs chiefly during childhood." ;
  rdfs:subClassOf obo:BTO_0000739 .

obo:BTO_0005510 a rdfs:Class ;
  rdfs:label "culture condition:2-phenylethanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005379 a rdfs:Class ;
  rdfs:label "Rh-30 cell" ;
  rdfs:comment "Human alveolar rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0003646 a rdfs:Class ;
  rdfs:label "pleomorphic adenoma cell" ;
  rdfs:comment "Carcinoma arising in a benign mixed tumour of a salivary gland, characterised by rapid enlargement and pain." ;
  rdfs:subClassOf obo:BTO_0002773 .

obo:BTO_0004763 a rdfs:Class ;
  rdfs:label "V866 cell" ;
  rdfs:comment "Human somatic proximal cecum colonic cancer cell line, established from a caucasian male." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0005872 a rdfs:Class ;
  rdfs:label "NMB cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0003967 a rdfs:Class ;
  rdfs:label "OSRGA cell" ;
  rdfs:comment "Rat osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002414 a rdfs:Class ;
  rdfs:label "PG-CL3 cell" ;
  rdfs:comment "Cloned PG cell subline." .

obo:BTO_0004889 a rdfs:Class ;
  rdfs:label "BM-314 cell" ;
  rdfs:comment "Human colon cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002358 a rdfs:Class ;
  rdfs:label "lateral cuneiform bone" ;
  rdfs:comment "The most lateral of the three wedge-shaped tarsal bones located medial to the cuboid and between the navicular and the first three metatarsal bones." ;
  rdfs:subClassOf obo:BTO_0002343 .

obo:BTO_0002987 a rdfs:Class ;
  rdfs:label "culture condition:tungstate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005437 a rdfs:Class ;
  rdfs:label "mammary luminal epithelial cell" ;
  rdfs:comment "The human breast epithelium is a branching ductal system composed of an inner layer of polarized luminal epithelial cells and an outer layer of myoepithelial cells that terminate in distally located terminal duct lobular units (TDLUs)." .

obo:BTO_0006373 a rdfs:Class ;
  rdfs:label "NPC-TW01 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line; derived from a 64-year-old male Chinese living in Taiwan." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0005458 a rdfs:Class ;
  rdfs:label "NCE-G55T2 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0002096 a rdfs:Class ;
  rdfs:label "nasal cavity" ;
  rdfs:comment "The portion of the passages of the respiratory system extending from the nares to the pharynx. It is divided into left and right halves by the nasal septum; its floor is the hard palate, which separates it from the oral cavity; and its lateral walls contain the nasal conchae and nasal meatus." .

obo:BTO_0006086 a rdfs:Class ;
  rdfs:label "HS-SY-2 cell" ;
  rdfs:comment "Human synovial sarcoma cell line (HS-SY-II) from pleural effusion with lung metastasis." ;
  rdfs:subClassOf obo:BTO_0003436 .

obo:BTO_0000306 a rdfs:Class ;
  rdfs:label "teratocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001560 .

obo:BTO_0002403 a rdfs:Class ;
  rdfs:label "OS-RC-2 cell" ;
  rdfs:comment "Human renal cell carcinoma (RCC) cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0001766 a rdfs:Class ;
  rdfs:label "neurula" ;
  rdfs:comment "An embryo at an early stage of development in which neurulation begins." ;
  rdfs:subClassOf obo:BTO_0000379 .

obo:BTO_0006075 a rdfs:Class ;
  rdfs:label "mHypoE-N43/5 cell" ;
  rdfs:comment "Embryonic mouse hypothalamus cell line." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0001299 a rdfs:Class ;
  rdfs:label "stele" ;
  rdfs:comment "The usually cylindrical central vascular portion of the axis of a vascular plant." ;
  rdfs:subClassOf obo:BTO_0001429 .

obo:BTO_0006452 a rdfs:Class ;
  rdfs:label "HCCLM-9 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." .

obo:BTO_0002804 a rdfs:Class ;
  rdfs:label "Mel57 cell" ;
  rdfs:comment "The human melanoma cell line Mel57 has been established from surgically removed melanoma metastases." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006392 a rdfs:Class ;
  rdfs:label "Fcwf-4 cell" ;
  rdfs:comment "This continuous feline fetus cell line was developed in 1979 from a whole cat fetus with peritonitis." ;
  rdfs:subClassOf obo:BTO_0001242 .

obo:BTO_0002756 a rdfs:Class ;
  rdfs:label "PC6-4 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0003122 a rdfs:Class ;
  rdfs:label "microvascular endothelium" ;
  rdfs:subClassOf obo:BTO_0001853 .

obo:BTO_0004759 a rdfs:Class ;
  rdfs:label "venous endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001176 .

obo:BTO_0004274 a rdfs:Class ;
  rdfs:label "PLC-8024 cell" ;
  rdfs:comment "Human hepatoblastoma cell line." .

obo:BTO_0005431 a rdfs:Class ;
  rdfs:label "Vgamma9Vdelta2 T-lymphocyte" ;
  rdfs:comment "Vgamma9Vdelta2 T- lymphocytes are reported to participate in the anti-tumor immune surveillance in human. They are known to recognize phosphoantigens and molecules expressed on cells undergoing neoplastic transformation." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0001495 a rdfs:Class ;
  rdfs:label "plumule" ;
  rdfs:comment "The primary bud of a plant embryo usually situated at the apex of the hypocotyl and consisting of leaves and an epicotyl." .

obo:BTO_0002454 a rdfs:Class ;
  rdfs:label "median nucleus of thalamus" ;
  rdfs:comment "Small groups of nonspecific nerve cells scattered in the periventricular gray substance, separating the medial part of the thalamus from the ependyma of the third ventricle, and partly forming the interthalamic adhesion; included in the group are the anterior and posterior paraventricular nuclei, nucleus parataenialis, nucleus commissuralis rhomboidalis, and nucleus reuniens." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0004815 a rdfs:Class ;
  rdfs:label "ER-1 cell" ;
  rdfs:comment "The ER-1 weakly malignant clonal cell line was derived from a mammary adenocarcinoma that developed spontaneously in a female SHR rat." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0004984 a rdfs:Class ;
  rdfs:label "alate adult" ;
  rdfs:comment "An alate is a winged reproductive of a social insect (especially ants or termites, but the term can also be applied to aphids and some thrips)." ;
  rdfs:subClassOf obo:BTO_0001043 .

obo:BTO_0001503 a rdfs:Class ;
  rdfs:label "thoracic leg" ;
  rdfs:comment "The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: coxa (meaning hip), trochanter, femur, tibia, tarsus, ischium, metatarsus, carpus, dactylus (meaning finger), patella. The typical thoracic leg of an adult insect is adapted for running, rather than for digging, leaping, swimming, predation or the like." .

obo:BTO_0002762 a rdfs:Class ;
  rdfs:label "PC6-10 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0002933 a rdfs:Class ;
  rdfs:label "CCLP-1 cell" ;
  rdfs:comment "Human cholangiocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0006540 a rdfs:Class ;
  rdfs:label "MRC5-SV2 cell" ;
  rdfs:comment "Human foetal lung cell line, SV40 transformed. Derived from the parental cell line MRC-5 by transformation with the SV40 virus. The cells do not senesce." .

obo:BTO_0001885 a rdfs:Class ;
  rdfs:label "ML-2 cell" ;
  rdfs:comment "Human acute myelomonocytic leukemia cell line; established from the peripheral blood of a 26-year-old man with acute myeloid leukemia (AML M4) at diagnosis of AML (following T-non-Hodgkin lymphoma and T-ALL) in 1978; sister cell lines are ML-1 and ML-3." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0005333 a rdfs:Class ;
  rdfs:label "SK-MEL-23 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0006504 a rdfs:Class ;
  rdfs:label "oculomotor nucleus" ;
  rdfs:comment "The fibers of the oculomotor nerve arise from a nucleus in the midbrain, which lies in the gray substance of the floor of the cerebral aqueduct and extends in front of the aqueduct for a short distance into the floor of the third ventricle." .

obo:BTO_0003021 a rdfs:Class ;
  rdfs:label "NCI-H187 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0001139 a rdfs:Class ;
  rdfs:label "pseudoplasmodium" ;
  rdfs:comment "A multinucleate plasmodium-like body formed by aggregation of myxamoebae without fusion of their protoplasm." ;
  rdfs:subClassOf obo:BTO_0002007 .

obo:BTO_0003557 a rdfs:Class ;
  rdfs:label "SN-56/OBR cell" ;
  rdfs:comment "A cell line, derived from the murine septal cholinergic neuronal cell line SN-56, which stably expresses OBR." .

obo:BTO_0002342 a rdfs:Class ;
  rdfs:label "bradyzoite" ;
  rdfs:comment "A small, comma-shaped form of Toxoplasma gondii, found in clusters enclosed by an irregular wall (pseudocyst) in the tissues, chiefly muscles and the brain, in chronic (latent) toxoplasmosis; considered to be the slow-growing form." ;
  rdfs:subClassOf obo:BTO_0002272 .

obo:BTO_0001626 a rdfs:Class ;
  rdfs:label "laryngeal muscle" ;
  rdfs:comment "The intrinsic muscles of the larynx are the aryepiglottic(us), arytenoid(eus), cricoarytenoid(eus), cricothyroid(eus), thyroarytenoid(eus), thyroepiglottic(us) and vocal(is)." .

obo:BTO_0004766 a rdfs:Class ;
  rdfs:label "SET-2 cell" ;
  rdfs:comment "Acute myeloid leukemia cell line. Human essential thrombocythemia cell line; established from the peripheral blood of a 71-year-old woman with essential thrombocythemia at megakaryoblastic leukemic transformation." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004697 a rdfs:Class ;
  rdfs:label "internal carotid artery" ;
  rdfs:comment "In human anatomy, the internal carotid artery is a major artery of the head and neck that helps supply blood to the brain." .

obo:BTO_0002179 a rdfs:Class ;
  rdfs:label "184A1N4 cell" ;
  rdfs:comment "The 184A1N4 and 184B5 cell lines are nontumorigenic cell lines derived from primary cultures of HMECs that were immortalized with benzo(a)pyrene." .

obo:BTO_0005622 a rdfs:Class ;
  rdfs:label "K3OHD cell" ;
  rdfs:comment "Suspension-cultured Digitalis lanata cells." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0005346 a rdfs:Class ;
  rdfs:label "Ma-Mel-52 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004568 a rdfs:Class ;
  rdfs:label "supportive connective tissue" ;
  rdfs:comment "Classified as supportive connective tissue are bone, osseous tissue, that makes up virtually the entire skeleton in adult vertebrates and cartilage makes up virtually the entire skeleton in chondrichthyes. In most other vertebrates, it is found primarily in joints, where it provides cushioning." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0001936 a rdfs:Class ;
  rdfs:label "SKW6.4 cell" ;
  rdfs:comment "Human B-lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0004741 a rdfs:Class ;
  rdfs:label "CGTH-W2 cell" ;
  rdfs:comment "Follicular thyroid cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003874 .

obo:BTO_0003534 a rdfs:Class ;
  rdfs:label "NMB-7 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001480 a rdfs:Class ;
  rdfs:label "Meynert's basal nucleus" ;
  rdfs:comment "A group of neurons in the basal forebrain that has wide projections to the neocortex and is rich in acetylcholine and choline acetyltransferase. It undergoes degeneration in paralysis agitans and Alzheimer's disease." ;
  rdfs:subClassOf obo:BTO_0000235 .

obo:BTO_0003140 a rdfs:Class ;
  rdfs:label "UM-SCC-14A cell" ;
  rdfs:comment "Head and neck squamous cell carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0002256 a rdfs:Class ;
  rdfs:label "heterotroph" ;
  rdfs:comment "A heterotrophic organism." ;
  rdfs:subClassOf obo:BTO_0000284 , obo:BTO_0000720 , obo:BTO_0002261 .

obo:BTO_0000897 a rdfs:Class ;
  rdfs:label "amnion epithelium" .

obo:BTO_0001590 a rdfs:Class ;
  rdfs:label "MRC-5 cell" ;
  rdfs:comment "Homo sapiens (human) lung; fibroblast; normal cell line. The MRC-5 cell line was derived from normal lung tissue of a 14-week-old male fetus by J.P. Jacobs in September of 1966." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0003574 a rdfs:Class ;
  rdfs:label "HTC-4 cell" ;
  rdfs:comment "Rat hepatoma cell line." .

obo:BTO_0000937 a rdfs:Class ;
  rdfs:label "neurohypophysis" ;
  rdfs:comment "The portion of the pituitary gland that is composed of the infundibulum and posterior lobe and is concerned with the secretion of various hormones." ;
  rdfs:subClassOf obo:BTO_0006267 .

obo:BTO_0003455 a rdfs:Class ;
  rdfs:label "neutrophilic myelocyte" ;
  rdfs:comment "Myelocytes are further distinguished according to the type of granules that develop, i.e., neutrophilic myelocyte (60%), eosinophilic myelocyte, basophilic myelocyte (3%)." ;
  rdfs:subClassOf obo:BTO_0000734 .

obo:BTO_0000410 a rdfs:Class ;
  rdfs:label "immature ovarian follicle" ;
  rdfs:comment "Primary ovarian follicles: immature ovarian follicles, each comprising an immature ovum and the specialized epithelial cells (follicle cells) that surround it." ;
  rdfs:subClassOf obo:BTO_0000475 .

obo:BTO_0003946 a rdfs:Class ;
  rdfs:label "MMDD1 cell" ;
  rdfs:comment "Mouse macula densa-derived cell line." ;
  rdfs:subClassOf obo:BTO_0002886 .

obo:BTO_0002311 a rdfs:Class ;
  rdfs:label "mammary myoepithelial cell" ;
  rdfs:comment "The human breast epithelium is a branching ductal system composed of an inner layer of polarized luminal epithelial cells and an outer layer of myoepithelial cells that terminate in distally located terminal duct lobular units (TDLUs)." ;
  rdfs:subClassOf obo:BTO_0002309 .

obo:BTO_0002515 a rdfs:Class ;
  rdfs:label "brain cortex cell line" ;
  rdfs:subClassOf obo:BTO_0000255 .

obo:BTO_0005127 a rdfs:Class ;
  rdfs:label "MCF-10A neoT cell" ;
  rdfs:comment "Ras-transformed human breast epithelial cells." .

obo:BTO_0003299 a rdfs:Class ;
  rdfs:label "MM5MT cell" ;
  rdfs:comment "Mouse mammary gland tumor cell line." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0004617 a rdfs:Class ;
  rdfs:label "mucilage" ;
  rdfs:comment "A gelatinous substance of various plants (as legumes or seaweeds) that contains protein and polysaccharides and is similar to plant gums ." .

obo:BTO_0003149 a rdfs:Class ;
  rdfs:label "interalveolar septum" ;
  rdfs:comment "The tissue intervening between two adjacent pulmonary alveoli; it consists of a close-meshed capillary network covered on both surfaces by very thin alveolar epithelial cells, one of the bony partitions between the tooth sockets." .

obo:BTO_0000436 a rdfs:Class ;
  rdfs:label "extensor digitorum longus" ;
  rdfs:comment "A pennate muscle on the lateral part of the front of the leg that extends the four small toes and dorsally flexes and pronates." ;
  rdfs:subClassOf obo:BTO_0000151 .

obo:BTO_0003488 a rdfs:Class ;
  rdfs:label "vibrissa" ;
  rdfs:comment "1. One of the specialized or tactile hairs which grow about the nostrils, or on other parts of the face, in many animals, as the so-called whiskers of the cat, and the hairs of the nostrils of man. 2. The bristlelike feathers near the mouth of many birds." ;
  rdfs:subClassOf obo:BTO_0001501 .

obo:BTO_0004210 a rdfs:Class ;
  rdfs:label "seminoma cell" ;
  rdfs:comment "A type of cancer of the testicles. Seminomas may spread to the lung, bone, liver, or brain." ;
  rdfs:subClassOf obo:BTO_0000279 .

obo:BTO_0003962 a rdfs:Class ;
  rdfs:label "NPC-TW04 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0000057 a rdfs:Class ;
  rdfs:label "aleurone layer" ;
  rdfs:comment "A group of cells rich in protein granules and located as the outer layer of the endosperm of many grain seeds." ;
  rdfs:subClassOf obo:BTO_0000390 .

obo:BTO_0004781 a rdfs:Class ;
  rdfs:label "SK-RC-26B cell" ;
  rdfs:comment "Human renal cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0006160 a rdfs:Class ;
  rdfs:label "olivopontocerebellar fiber" ;
  rdfs:comment "Fiber pertaining to the olive, the middle peduncles and the cerebellar cortex." .

obo:BTO_0002165 a rdfs:Class ;
  rdfs:label "basidium" ;
  rdfs:comment "The clublike organ of the fungal class Basidiomycotina which, following karyogamy and meiosis, bears the basidiospore." .

obo:BTO_0001112 a rdfs:Class ;
  rdfs:label "preputial gland tumor cell" .

obo:BTO_0002593 a rdfs:Class ;
  rdfs:label "DC-3F/9-OH-E cell" ;
  rdfs:comment "A DC-3F subline resistant to 9-hydroxy-ellipticine." .

obo:BTO_0004022 a rdfs:Class ;
  rdfs:label "UM-SCC-17A cell" ;
  rdfs:comment "Human larynx squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004019 .

obo:BTO_0002901 a rdfs:Class ;
  rdfs:label "neural crest cell line" .

obo:BTO_0000675 a rdfs:Class ;
  rdfs:label "SW-620 cell" ;
  rdfs:comment "Human, Caucasian, colon, adenocarcinoma cell line, established from the tissue of a 51-year-old Caucasian male." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0002695 a rdfs:Class ;
  rdfs:label "uterine leiomyoma cell" ;
  rdfs:comment "A benign tumor of the smooth muscle fibers of the uterus." ;
  rdfs:subClassOf obo:BTO_0000257 , obo:BTO_0002694 .

obo:BTO_0003397 a rdfs:Class ;
  rdfs:label "feather barbules" ;
  rdfs:comment "Tiny extensions from barbs that are held together by barbicels." .

obo:BTO_0006117 a rdfs:Class ;
  rdfs:label "middle silk gland" ;
  rdfs:comment "The silk gland contains three compartments according its morphology and function, including the anterior silk gland, middle silk gland, and posterior silk gland. The fibroins and sericins are synthesized in the posterior and middle silk gland, respectively and then stored in the lumen of the silk gland as a concentrated aqueous silk solution." ;
  rdfs:subClassOf obo:BTO_0001250 .

obo:BTO_0005908 a rdfs:Class ;
  rdfs:label "IM-95 cell" ;
  rdfs:comment "Human gastric adenocarcinoma cell line; established from a 63-years old japanese male patient with moderately differentiated adenocarcinoma of the stomach." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0000556 a rdfs:Class ;
  rdfs:label "germ layer" ;
  rdfs:comment "A layer of cells produced during the process of gastrulation during the early development of the animal embryo, which is distinct from other such layers of cells, as an early step of cell differentiation. The three types of germ layers are the endoderm, ectoderm, and mesoderm." .

obo:BTO_0002948 a rdfs:Class ;
  rdfs:label "1383 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001373 a rdfs:Class ;
  rdfs:label "amnion epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0000110 .

obo:BTO_0004113 a rdfs:Class ;
  rdfs:label "GLC-82 cell" ;
  rdfs:comment "Lung adenocarcinoma cell line." .

obo:BTO_0001268 a rdfs:Class ;
  rdfs:label "somatic cell" ;
  rdfs:comment "One of the cells of the body that compose the tissues, organs, and parts of that individual other than the germ cells." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0005365 a rdfs:Class ;
  rdfs:label "ECC-1 cell" ;
  rdfs:comment "An established epithelial cell line derived from an adenocarcinoma of human endometrial lining." .

obo:BTO_0005778 a rdfs:Class ;
  rdfs:label "myeloblastoma cell" ;
  rdfs:comment "A focal malignant tumor composed of myeloblasts or early myeloid precursors occurring outside the bone marrow." .

obo:BTO_0004292 a rdfs:Class ;
  rdfs:label "claustrum" ;
  rdfs:comment "The one of the four basal ganglia in each cerebral hemisphere that consists of a thin lamina of gray matter between the lentiform nucleus and the insula." ;
  rdfs:subClassOf obo:BTO_0000235 .

obo:BTO_0005846 a rdfs:Class ;
  rdfs:label "IMR-5 cell" ;
  rdfs:comment "Human neuroblastoma cell line." .

obo:BTO_0002829 a rdfs:Class ;
  rdfs:label "KARPAS-299 cell" ;
  rdfs:comment "Human T cell lymphoma cell line; established from the peripheral blood of a 25-year-old man with T cell non-Hodgkin lymphoma in 1986; now classified as CD30+ anaplastic large cell lymphoma (ALCL)." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0006422 a rdfs:Class ;
  rdfs:label "HEK-293-APPswe cell" ;
  rdfs:comment "HEK-293 cell line, expressing APP695  K595N/M596L  Swedish  mutant." .

obo:BTO_0004990 a rdfs:Class ;
  rdfs:label "UM-UC-9 cell" ;
  rdfs:comment "Human transitional cell carcinoma cell line of the bladder." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0003592 a rdfs:Class ;
  rdfs:label "GM00037 cell" ;
  rdfs:comment "Primary normal human fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0004777 a rdfs:Class ;
  rdfs:label "RSC96 cell" ;
  rdfs:comment "Spontaneously immortalized rat Schwann cell line, derived from long-term culture of rat primary Schwann cells." ;
  rdfs:subClassOf obo:BTO_0001216 .

obo:BTO_0003628 a rdfs:Class ;
  rdfs:label "annulus fibrosus cordis" ;
  rdfs:comment "One of four fibrous rings that surround atrioventricular and arterial orifices of the heart, providing attachment for the valve leaflets and maintaining patency of the orifice. As part of the fibrous skeleton of the heart, the fibrous rings also provide origin and insertion for the myocardium." ;
  rdfs:subClassOf obo:BTO_0003627 .

obo:BTO_0005324 a rdfs:Class ;
  rdfs:label "culture condition:chrysene-grown cell" ;
  rdfs:comment "Chrysene is a polycyclic aromatic hydrocarbon (PAH) with the molecular formula C18H12 that consists of four fused benzene rings. It is a natural constituent of coal tar, from which it was first isolated and characterized. It is also found in creosote, a chemical used to preserve wood. As with other PAHs, chrysene is suspected to be a human carcinogen. It is known to cause cancer in laboratory animals." ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004820 a rdfs:Class ;
  rdfs:label "NHEM693 cell" ;
  rdfs:comment "Human primary melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0001134 a rdfs:Class ;
  rdfs:label "protonema" ;
  rdfs:comment "The primary usually filamentous thalloid stage of the gametophyte in mosses and in some liverworts comparable to the prothallium in ferns." ;
  rdfs:subClassOf obo:BTO_0000495 .

obo:BTO_0003935 a rdfs:Class ;
  rdfs:label "L57-3-11 cell" ;
  rdfs:comment "Ecdysteroid receptor deficient Drosophila melanogaster cell line; derived from the Kc-167 cell line." .

obo:BTO_0000787 a rdfs:Class ;
  rdfs:label "gastric cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001088 .

obo:BTO_0000458 a rdfs:Class ;
  rdfs:label "WI-38 cell" ;
  rdfs:comment "Human embryonic lung fibroblast cell line. The WI-38 human diploid cell line was derived by Leonard Hayflick from normal embryonic (3 months gestation) lung tissue." ;
  rdfs:subClassOf obo:BTO_0000161 , obo:BTO_0001958 .

obo:BTO_0003552 a rdfs:Class ;
  rdfs:label "KK-47 cell" ;
  rdfs:comment "Human bladder tumor (transitional cell carcinoma) cell line." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0002353 a rdfs:Class ;
  rdfs:label "digitum minimus pedis" ;
  rdfs:comment "The fifth, and smallest, digit of the foot." ;
  rdfs:subClassOf obo:BTO_0002348 .

obo:BTO_0006132 a rdfs:Class ;
  rdfs:label "corticospinal tract" ;
  rdfs:comment "The corticospinal tract is a descending tract of the spinal cord which contains bundles of axons which originate in the cerebral cortex and descend to synapse within the brainstem or spinal cord." .

obo:BTO_0006366 a rdfs:Class ;
  rdfs:label "pericryptal myofibroblast" ;
  rdfs:subClassOf obo:BTO_0001946 , obo:BTO_0006367 .

obo:BTO_0006533 a rdfs:Class ;
  rdfs:label "branchial crown" ;
  rdfs:comment "A structure surrounding the terminal mouth composed of ciliated, bipinnate filaments functioning in suspension filter feeding and respiration. (Annelida, Polychaeta)" ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0005205 a rdfs:Class ;
  rdfs:label "cerebral artery" ;
  rdfs:comment "Any of the arteries supplying blood to the cerebral cortex." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0006403 a rdfs:Class ;
  rdfs:label "IPEC-1 cell" ;
  rdfs:comment "Porcine intestinal jejunum and ileum cell line; established from normal intestinal epithelium cells isolated from both jejunum and ileum of a neonatal pig." ;
  rdfs:subClassOf obo:BTO_0000003 .

obo:BTO_0005474 a rdfs:Class ;
  rdfs:label "SOB-15 cell" ;
  rdfs:comment "Long-term primary culture epithelial cells from rainbow trout, Oncorhynchus mykiss, liver." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0003668 a rdfs:Class ;
  rdfs:label "leaf bud" ;
  rdfs:comment "A bud that develops into a leafy shoot and does not produce flowers." ;
  rdfs:subClassOf obo:BTO_0000158 .

obo:BTO_0003580 a rdfs:Class ;
  rdfs:label "HGEC cell" ;
  rdfs:comment "Immortalized human glomerular endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003581 .

obo:BTO_0001202 a rdfs:Class ;
  rdfs:label "saliva" ;
  rdfs:comment "A slightly alkaline secretion of water, mucin, protein, salts, and often a starch-splitting enzyme, as ptyalin, that is secreted into the mouth by salivary glands, lubricates ingested food, and often begins the breakdown of starches." .

obo:BTO_0002504 a rdfs:Class ;
  rdfs:label "T-lymphoblastic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000739 .

obo:BTO_0006143 a rdfs:Class ;
  rdfs:label "MHCC-LM3 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." .

obo:BTO_0002483 a rdfs:Class ;
  rdfs:label "interventricular septum" ;
  rdfs:comment "The partition that separates the left ventricle from the right ventricle, consisting of a muscular and a membranous part." .

obo:BTO_0006295 a rdfs:Class ;
  rdfs:label "BWZ.36 CD8 alpha cell" ;
  rdfs:comment "Mouse lymphoma cell line, derived by transfecting alpha-beta-BW5147 cells with the NFAT-lacZ construct." .

obo:BTO_0000537 a rdfs:Class ;
  rdfs:label "nectar" ;
  rdfs:comment "A sweet liquid that is secreted by the nectaries of a plant and is the chief raw material of honey." .

obo:BTO_0004701 a rdfs:Class ;
  rdfs:label "dorsal striatum" ;
  rdfs:comment "Those portions of the caudate nucleus and especially the putamen located generally superior to a plane representing the anterior commissure; also called the dorsal basal ganglia; may function in motor activities with cognitive origins." .

obo:BTO_0001076 a rdfs:Class ;
  rdfs:label "pituitary gland tumor cell" ;
  rdfs:comment "A benign tumor of the pituitary, the master gland that controls other glands and influences numerous body functions including growth. Although the tumor itself is not cancerous, it may affect pituitary function, and therefore may need to be removed." .

obo:BTO_0001097 a rdfs:Class ;
  rdfs:label "pollen" ;
  rdfs:comment "The structure into which a haploid microspore develops; contains a halpoid tube nucleus and two haploid sperm nuclei at maturity." .

obo:BTO_0003187 a rdfs:Class ;
  rdfs:label "SNU-423 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0003326 a rdfs:Class ;
  rdfs:label "FLK cell" ;
  rdfs:comment "Fetal lamb kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 , obo:BTO_0001242 .

obo:BTO_0000522 a rdfs:Class ;
  rdfs:label "gland" ;
  rdfs:comment "A cell, group of cells, or organ of endothelial origin that selectively removes materials from the blood, concentrates or alters them, and secretes them for further use in the body or for elimination from the body." .

obo:BTO_0006468 a rdfs:Class ;
  rdfs:label "peritoneal cell line" .

obo:BTO_0004242 a rdfs:Class ;
  rdfs:label "vitellarium" ;
  rdfs:comment "The female system is unusual in that it is separated into two structures: the ovaries and the vitellaria, often known as the vitelline glands or yolk glands. The cells of the vitellaria form yolk and eggshell components." .

obo:BTO_0003169 a rdfs:Class ;
  rdfs:label "SNU-368 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001669 a rdfs:Class ;
  rdfs:label "HMC-1 cell" ;
  rdfs:comment "Human mast cell line." ;
  rdfs:subClassOf obo:BTO_0001668 .

obo:BTO_0002031 a rdfs:Class ;
  rdfs:label "RNK-16 cell" ;
  rdfs:comment "Rat natural killer cell line." ;
  rdfs:subClassOf obo:BTO_0002030 .

obo:BTO_0003711 a rdfs:Class ;
  rdfs:label "WM-75 cell" ;
  rdfs:comment "Primary human melanoma cell line; derived from vertical growth phase primary melanoma from a patient who also had a subsequent metastatic lesion." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003365 a rdfs:Class ;
  rdfs:label "germinated grain" ;
  rdfs:comment "After germination, the grain of barley is called green malt." ;
  rdfs:subClassOf obo:BTO_0000208 .

obo:BTO_0001477 a rdfs:Class ;
  rdfs:label "photophore" ;
  rdfs:comment "A light-emitting organ; especially: one of the luminous spots on various marine mostly deep-sea fishes." .

obo:BTO_0004148 a rdfs:Class ;
  rdfs:label "cervical spine" ;
  rdfs:comment "That portion of the spine comprising the cervical vertebrae. The neck area of the spine." .

obo:BTO_0001198 a rdfs:Class ;
  rdfs:label "atrial gland" ;
  rdfs:comment "The atrial gland is an exocrine organ that secretes into the oviduct of Aplysia californica and expresses three homologous genes belonging to the egg-laying hormone gene family." ;
  rdfs:subClassOf obo:BTO_0000254 , obo:BTO_0000765 .

obo:BTO_0001970 a rdfs:Class ;
  rdfs:label "NCI-H660 cell" ;
  rdfs:comment "Homo sapiens (human) lung; small cell lung cancer cell line, extrapulmonary origin; established from a 63 years adult caucasian male. Morphology: epithelial; cell type: neuroendocrine; Tumor stage E; derived from metastatic site: lymph node." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0004986 a rdfs:Class ;
  rdfs:label "SNU-5 cell" ;
  rdfs:comment "Gastric carcinoma cell line; derived in 1987 by J. Park and associates from ascites of a patient with poorly differentiated carcinoma of the stomach." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0003364 a rdfs:Class ;
  rdfs:label "gingival fluid" ;
  rdfs:comment "Fluid containing plasma proteins, which is present in increasing amounts in association with gingival inflammation." .

obo:BTO_0001366 a rdfs:Class ;
  rdfs:label "thallus" ;
  rdfs:comment "A plant or plantlike body, as of an alga, fungus, or moss, that lacks differentiation into distinct members, as stem, leaves, and roots, and does not grow from an apical point." ;
  rdfs:subClassOf obo:BTO_0000720 , obo:BTO_0002261 .

obo:BTO_0000707 a rdfs:Class ;
  rdfs:label "larva" ;
  rdfs:comment "1: The immature, wingless, and often wormlike feeding form that hatches from the egg of many insects, alters chiefly in size while passing through several molts, and is finally transformed into a pupa or chrysalis from which the adult emerges. 2: The early form of an animal (as a frog or sea urchin) that at birth or hatching is fundamentally unlike its parent and must metamorphose before assuming the adult characters." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0002959 a rdfs:Class ;
  rdfs:label "TP17 cell" ;
  rdfs:comment "The melanoma cell line TP17 was obtained from a primary tumor extracted from the eyes of patients with diagnosed uveal melanoma." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006509 a rdfs:Class ;
  rdfs:label "Hca-P cell" ;
  rdfs:comment "The Hca-F and Hca-P cell lines are subclones derived from the same parent cells of mouse hepatocarcinoma ascitic cells. In tumor-bearing mice, Hca-F cells have an approximate 70% lymph node metastasis rate and Hca-P cells have an approximate 30% lymph node metastasis." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0002228 a rdfs:Class ;
  rdfs:label "culture condition:light-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004281 a rdfs:Class ;
  rdfs:label "C-81 cell" ;
  rdfs:comment "HTLV-1-infected human T-cell line; established from patients with T-cell leukemia." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0004068 a rdfs:Class ;
  rdfs:label "C26-A cell" ;
  rdfs:comment "The colon cancer cell line C26-A was derived from the undifferentiated murine colon carcinoma tumor line Colon 26." .

obo:BTO_0004348 a rdfs:Class ;
  rdfs:label "motor cortex" ;
  rdfs:comment "The region of the cerebral cortex influencing movements of the face, neck and trunk, and arm and leg." .

obo:BTO_0001485 a rdfs:Class ;
  rdfs:label "muscular system" ;
  rdfs:comment "The bodily system that is composed of skeletal, smooth, and cardiac muscle tissue and functions in movement of the body or of materials through the body, maintenance of posture, and heat production." .

obo:BTO_0005572 a rdfs:Class ;
  rdfs:label "HCE-4 cell" ;
  rdfs:comment "Human esophageal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002817 .

obo:BTO_0005582 a rdfs:Class ;
  rdfs:label "Ra-2 cell" ;
  rdfs:comment "Mouse microglial cell line." ;
  rdfs:subClassOf obo:BTO_0003349 .

obo:BTO_0001038 a rdfs:Class ;
  rdfs:label "peritrophic membrane" ;
  rdfs:comment "A delicate, cylindrical sheath of chitin continuously secreted from the posterior edge of the foregut of insects and millipedes that ingest solid food, which surrounds the food as it passes through the midgut." .

obo:BTO_0002853 a rdfs:Class ;
  rdfs:label "theca folliculi" ;
  rdfs:comment "An envelope of condensed connective tissue surrounding a vesicular ovarian follicle, comprising an internal vascular layer (tunica interna) and an external fibrous layer (tunica externa)." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0001597 a rdfs:Class ;
  rdfs:label "sapling" ;
  rdfs:comment "A young tree; specifically: one not over four inches in diameter at breast height." ;
  rdfs:subClassOf obo:BTO_0001461 .

obo:BTO_0003300 a rdfs:Class ;
  rdfs:label "MM5MTC cell" ;
  rdfs:comment "Mouse mammary gland tumor cell line." .

obo:BTO_0001744 a rdfs:Class ;
  rdfs:label "jugular vein" ;
  rdfs:comment "Any of several large veins of the neck that drain blood from the head." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0004187 a rdfs:Class ;
  rdfs:label "NRK-E52 cell" ;
  rdfs:comment "Normal rat kidney cell line." .

obo:BTO_0003285 a rdfs:Class ;
  rdfs:label "PCI-43 cell" ;
  rdfs:comment "Human pancreatic cancer cell line; established from surgically resected, primary carcinoma tissue." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0003412 a rdfs:Class ;
  rdfs:label "rostral migratory stream" ;
  rdfs:comment "In rodents, the anterior region of the SVZ produces neuroblasts that migrate in chain toward the olfactory bulb along the so-called rostral migratory stream (RMS)." .

obo:BTO_0004867 a rdfs:Class ;
  rdfs:label "Sup-M2-TS cell" ;
  rdfs:comment "Human anaplastic large cell lymphoma (ALCL) cell line, a subclone of Sup-M2." .

obo:BTO_0005426 a rdfs:Class ;
  rdfs:label "NB-69 cell" ;
  rdfs:comment "Human neuroblastoma brain (Stage III) cell line, isolated from a 16 month old male." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0003195 a rdfs:Class ;
  rdfs:label "SK-RC-7 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0000492 a rdfs:Class ;
  rdfs:label "MST cell" ;
  rdfs:comment "Furth murine mastocytoma cell line." ;
  rdfs:subClassOf obo:BTO_0000403 .

obo:BTO_0001842 a rdfs:Class ;
  rdfs:label "pleural ganglion" ;
  rdfs:comment "The pallial cavity's nerve knots are called pleural ganglia. They innerve primarily the mantle or a snail." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0004600 a rdfs:Class ;
  rdfs:label "TE-8 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0001162 a rdfs:Class ;
  rdfs:label "apocrine gland" ;
  rdfs:comment "A gland whose discharged secretion contains part of the secreting cells." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0002241 a rdfs:Class ;
  rdfs:label "eyelid" ;
  rdfs:comment "Either of the movable folds of skin and muscle that can be closed over the eyeball." .

obo:BTO_0003949 a rdfs:Class ;
  rdfs:label "distal tubular epithelium cell line" ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0003990 a rdfs:Class ;
  rdfs:label "CH12F3-2 cell" ;
  rdfs:comment "Murine B lymphoma cell line." .

obo:BTO_0002155 a rdfs:Class ;
  rdfs:label "ceratobranchial" ;
  rdfs:comment "A long, deep, endochondral bone in the middle portion of the gill arches between the epibranchials and the hypobranchials. There are usually 5 pairs of ceratobranchials, absent in some Anguillidae, Polypterus and Calamoichthys. The fifth pair of ceratobranchialas are modified in Cypriniformes and Siluriformes into a strong, tooth-bearing bone called the inferior pharyngobranchial bone." ;
  rdfs:subClassOf obo:BTO_0002152 .

obo:BTO_0005790 a rdfs:Class ;
  rdfs:label "promyelocyte" ;
  rdfs:comment "Granulocyte precursor, developing from the myeloblast and developing into the myelocyte." ;
  rdfs:subClassOf obo:BTO_0000725 .

obo:BTO_0003010 a rdfs:Class ;
  rdfs:label "NCI-H125 cell" ;
  rdfs:comment "Human lung adenocarcinoma non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0003740 a rdfs:Class ;
  rdfs:label "TALL-104 cell" ;
  rdfs:comment "Human leukemic cytotoxic T cell line." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0003621 a rdfs:Class ;
  rdfs:label "serosal mast cell" ;
  rdfs:subClassOf obo:BTO_0000830 .

obo:BTO_0005167 a rdfs:Class ;
  rdfs:label "HSC-1 cell" ;
  rdfs:comment "Human cutaneous squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002024 .

obo:BTO_0005673 a rdfs:Class ;
  rdfs:label "LNCaP-CL1 cell" ;
  rdfs:comment "LNCaP and its derivative cell lines, which include C4-2 and the related C4-2B and CL1, are used as models of prostate cancer." .

obo:BTO_0000144 a rdfs:Class ;
  rdfs:label "meninx" ;
  rdfs:comment "Any of the three membranes that envelop the brain and spinal cord." .

obo:BTO_0003640 a rdfs:Class ;
  rdfs:label "esophageal cell line" .

obo:BTO_0002295 a rdfs:Class ;
  rdfs:label "podocyte" ;
  rdfs:comment "A modified epithelial cell of the capsular epithelium of the renal glomerulus, having a small perikaryon and a number of primary and secondary footlike radiating processes (pedicels) that interdigitate with those of other podocytes and embrace the basal lamina of glomerular capillaries." ;
  rdfs:subClassOf obo:BTO_0000414 .

obo:BTO_0003675 a rdfs:Class ;
  rdfs:label "temporomandibular articular disk" ;
  rdfs:comment "The fibrocartilaginous plate that separates the joint into upper and lower cavities." .

obo:BTO_0002064 a rdfs:Class ;
  rdfs:label "stromal cell" ;
  rdfs:comment "Connective tissue cells of an organ found in the loose connective tissue. These are most often associated with the uterine mucosa and the ovary as well as the hematopoietic system and elsewhere." .

obo:BTO_0002201 a rdfs:Class ;
  rdfs:label "HCT-15 cell" ;
  rdfs:comment "Human colon adenocarcinoma cell line; established from Dukes' type C colorectal adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0001347 a rdfs:Class ;
  rdfs:label "tadpole" ;
  rdfs:comment "A larval amphibian; specifically: a frog or toad larva that has a rounded body with a long tail bordered by fins and external gills soon replaced by internal gills and that undergoes a metamorphosis to the adult." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0000263 a rdfs:Class ;
  rdfs:label "P-388D1(IL-1) cell" ;
  rdfs:comment "Mouse monocytes-macrophages, established from the ascites of a DBA/2 mouse with a lymphoid neoplasm induced by methylcholanthrene and subsequently enriched for adherent (monocyte-macrophage) cells by selection (yielding this IL1-producing subclone); reported to produce IL-1 after stimulation with LPS or PMA, to phagocytize latex articles and to synthesize lysozyme." ;
  rdfs:subClassOf obo:BTO_0000984 .

obo:BTO_0004804 a rdfs:Class ;
  rdfs:label "buccal epithelial cell" .

obo:BTO_0001709 a rdfs:Class ;
  rdfs:label "colonic epithelium" ;
  rdfs:subClassOf obo:BTO_0000781 .

obo:BTO_0000630 a rdfs:Class ;
  rdfs:label "inner ear" ;
  rdfs:comment "The essential organ of hearing and equilibrium that is located in the temporal bone, is innervated by the auditory nerve, and includes the vestibule, the semicircular canals, and the cochlea." .

obo:BTO_0001083 a rdfs:Class ;
  rdfs:label "MH134 cell" ;
  rdfs:comment "Mouse hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0004176 a rdfs:Class ;
  rdfs:label "MOLM-16 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established in 1999 from the peripheral blood of a 77-year-old Japanese woman at relapse of acute myeloid leukemia (AML M0) after failed chemotherapy." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0006276 a rdfs:Class ;
  rdfs:label "GNET cell" ;
  rdfs:subClassOf obo:BTO_0001407 .

obo:BTO_0002083 a rdfs:Class ;
  rdfs:label "perilymphatic space" ;
  rdfs:comment "The fluid-filled space separating the membranous from the osseous labyrinth." .

obo:BTO_0000733 a rdfs:Class ;
  rdfs:label "exocarp" ;
  rdfs:comment "The outermost layer of the pericarp of a fruit. The skin or rind of a fruit." .

obo:BTO_0000375 a rdfs:Class ;
  rdfs:label "keratinocyte cell line" .

obo:BTO_0002531 a rdfs:Class ;
  rdfs:label "HBL-10 cell" ;
  rdfs:comment "Burkitt lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0001033 a rdfs:Class ;
  rdfs:label "prostate cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001019 .

obo:BTO_0004258 a rdfs:Class ;
  rdfs:label "primitive neuroectodermal tumor cell" ;
  rdfs:comment "One of a remarkable group of tumors that originate in cells from the primitive neural crest and share the same reciprocal translocation between chromosomes 11 and 22 and the same patterns of biochemical and oncogene expression. Some primitive neuroectodermal tumors (PNETs) occur in the brain while others (the peripheral PNETs) occur in sites outside the brain such as in the extremities, pelvis, and the chest wall." ;
  rdfs:subClassOf obo:BTO_0002372 , obo:BTO_0005120 .

obo:BTO_0003661 a rdfs:Class ;
  rdfs:label "ovary epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0002267 a rdfs:Class ;
  rdfs:label "rhabdomyosarcoma cell line" ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0005633 a rdfs:Class ;
  rdfs:label "monopodium" ;
  rdfs:comment "A main axis of a plant, such as the trunk of a spruce, that maintains a single line of growth, giving off lateral branches." ;
  rdfs:subClassOf obo:BTO_0001300 .

obo:BTO_0000861 a rdfs:Class ;
  rdfs:label "culture condition:methanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004640 a rdfs:Class ;
  rdfs:label "FD-2 cell" ;
  rdfs:comment "Farber disease dermal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0005268 a rdfs:Class ;
  rdfs:label "neuropil" ;
  rdfs:comment "Neuropil is a broad term defined as any area in the nervous system composed of mostly unmyelinated axons, dendrites and glial cell processes that forms a synaptically dense region containing a relatively low number of cell bodies. The most prevalent anatomical region of neuropil is the brain which, although not completely composed of neuropil, does have the largest and highest synaptically-concentrated areas of neuropil in the body. White matter, which is mostly composed of axons and glial cells, is generally not considered to be a part of the neuropil." .

obo:BTO_0001615 a rdfs:Class ;
  rdfs:label "colorectal cancer cell" .

obo:BTO_0001637 a rdfs:Class ;
  rdfs:label "dura mater" ;
  rdfs:comment "The tough fibrous membrane covering the brain and the spinal cord and lining the inner surface of the skull. It is the outermost of the three meninges that surround the brain and spinal cord." .

obo:BTO_0000455 a rdfs:Class ;
  rdfs:label "JTC-15 cell" ;
  rdfs:comment "Rat hepatoma, established in 1963 from the ascites of a rat with hepatoma induced with 4-dimethylaminoazobenzene." ;
  rdfs:subClassOf obo:BTO_0000582 .

obo:BTO_0005088 a rdfs:Class ;
  rdfs:label "arteria dorsalis penis" ;
  rdfs:comment "The artery that serves blood to the penis. It subdivides into three arteries, the bulbourethral artery, the dorsal artery of the penis and the cavernosal artery." .

obo:BTO_0005583 a rdfs:Class ;
  rdfs:label "promonocytic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0004897 a rdfs:Class ;
  rdfs:label "CHO-LY-B cell" ;
  rdfs:comment "Chinese hamster ovary cells strain with defective serine palmitoyltransferase." .

obo:BTO_0000620 a rdfs:Class ;
  rdfs:label "ileum" ;
  rdfs:comment "The last division of the small intestine extending between the jejunum and large intestine." .

obo:BTO_0001772 a rdfs:Class ;
  rdfs:label "olfactory organ" ;
  rdfs:comment "The specialized structures subserving the function of the sense of smell, including the olfactory region of the nasal mucosa containing the bipolar cells of origin of the olfactory nerves, together with the olfactory glands." .

obo:BTO_0003177 a rdfs:Class ;
  rdfs:label "semimembranosus" ;
  rdfs:comment "A large muscle of the inner part and back of the thigh that arises by a thick tendon from the back part of the tuberosity of the ischium, is inserted into the medial condyle of the tibia, and acts to flex the leg and rotate it medially and to extend the thigh." ;
  rdfs:subClassOf obo:BTO_0003179 .

obo:BTO_0005614 a rdfs:Class ;
  rdfs:label "BMA cell" ;
  rdfs:comment "Mouse macrophage cell line." ;
  rdfs:subClassOf obo:BTO_0002278 .

obo:BTO_0003725 a rdfs:Class ;
  rdfs:label "SK-UT-1B cell" ;
  rdfs:comment "Human leiomyosarcoma cell line; established from the endometrium of a 75-years old caucasian female with mesodermal tumor (mixed) grade III in the uterus." ;
  rdfs:subClassOf obo:BTO_0002488 .

obo:BTO_0006091 a rdfs:Class ;
  rdfs:label "HeLa-HL3T1 cell" ;
  rdfs:comment "The HeLa derivative HL3T1 is a sensitive indicator cell line for the HIV-1 Tat transactivator protein." .

obo:BTO_0003035 a rdfs:Class ;
  rdfs:label "HS-Sultan cell" ;
  rdfs:comment "Human Caucasian plasma cell plasmacytoma cell line. Derived from a plasmacytoma of a 56 year old with IgG multiple myeloma." ;
  rdfs:subClassOf obo:BTO_0000456 .

obo:BTO_0002072 a rdfs:Class ;
  rdfs:label "squamous epithelium" ;
  rdfs:comment "Epithelium composed of flattened platelike cells." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0002616 a rdfs:Class ;
  rdfs:label "turion" ;
  rdfs:comment "A thick fleshy young shoot or sucker, such as an emerging stem of asparagus." ;
  rdfs:subClassOf obo:BTO_0001188 , obo:BTO_0001243 .

obo:BTO_0004657 a rdfs:Class ;
  rdfs:label "premonocyte" ;
  rdfs:comment "An immature monocyte not normally present in the blood." ;
  rdfs:subClassOf obo:BTO_0000876 .

obo:BTO_0005463 a rdfs:Class ;
  rdfs:label "Huh-7.5.1 cell" ;
  rdfs:comment "Huh-7.5.1 cells were derived from the Huh-7.5 GFP-HCV replicon cell line I/5A-GFP-6." .

obo:BTO_0003780 a rdfs:Class ;
  rdfs:label "RM-1 cell" ;
  rdfs:comment "Mouse prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005037 a rdfs:Class ;
  rdfs:label "HEI-193 cell" ;
  rdfs:comment "Human schwannoma cell line." ;
  rdfs:subClassOf obo:BTO_0003225 .

obo:BTO_0004397 a rdfs:Class ;
  rdfs:label "B-103 cell" ;
  rdfs:comment "Rat neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000686 a rdfs:Class ;
  rdfs:label "Kurloff cell" ;
  rdfs:comment "Cells found in the blood and organs of guinea pigs that contain large secretory granules but are of unknown function." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0003268 a rdfs:Class ;
  rdfs:label "HS578 cell" ;
  rdfs:comment "Human pancreatic cancer cell line." .

obo:BTO_0005575 a rdfs:Class ;
  rdfs:label "ileum smooth muscle cell" .

obo:BTO_0003686 a rdfs:Class ;
  rdfs:label "medial habenular nucleus" ;
  rdfs:subClassOf obo:BTO_0003685 .

obo:BTO_0003495 a rdfs:Class ;
  rdfs:label "PDNEC cell" ;
  rdfs:comment "Poorly differentiated neuroendocrine carcinoma (PDNEC)." ;
  rdfs:subClassOf obo:BTO_0001407 .

obo:BTO_0002382 a rdfs:Class ;
  rdfs:label "MKN-7 cell" ;
  rdfs:comment "Well differentiated human gastric adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0001027 a rdfs:Class ;
  rdfs:label "peripheral nerve" ;
  rdfs:comment "The peripheral nerves include the 12 cranial nerves, the spinal nerves and roots, and what are called the autonomic nerves that are concerned specifically with the regulation of the heart muscle, the muscles in blood vessel walls, and glands." .

obo:BTO_0000211 a rdfs:Class ;
  rdfs:label "caudate nucleus" ;
  rdfs:comment "One of the centrally-located portions of the brain affected by Huntington's Disease. Speech and swallowing problems arise when this region and another region called the putamen are affected." .

obo:BTO_0003714 a rdfs:Class ;
  rdfs:label "VMRC-RCW cell" ;
  rdfs:comment "Human renal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0004774 a rdfs:Class ;
  rdfs:label "trophoblast stem cell" ;
  rdfs:comment "Tanaka et al have reported that a culture of mouse blastocysts or early postimplantation trophoblasts in the presence of FGF-4 permits the isolation of permanent trophoblast stem cell lines." .

obo:BTO_0002864 a rdfs:Class ;
  rdfs:label "T3M4 cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0003220 a rdfs:Class ;
  rdfs:label "SK32 cell" ;
  rdfs:comment "Peroxisome-deficient Chinese hamster ovary (CHO) cell line." .

obo:BTO_0004141 a rdfs:Class ;
  rdfs:label "cribriform plate" ;
  rdfs:comment "The horizontal plate of the ethmoid bone perforated with numerous foramina for the passage of the olfactory nerve filaments from the nasal cavity." .

obo:BTO_0005913 a rdfs:Class ;
  rdfs:label "MEC-1 cell" ;
  rdfs:comment "Human chronic B cell leukemia cell line; established in 1993 from the peripheral blood of a 61-year-old Caucasian man with chronic B cell leukemia; serial sister cell line of MEC-2." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0006561 a rdfs:Class ;
  rdfs:label "hepatic oval cell" ;
  rdfs:comment "Hepatic oval cells are a small subpopulation of cells found in the liver when hepatocyte proliferation is inhibited and followed by some type of hepatic injury. These cells are believed to be bipotential, i.e., able to differentiate into hepatocytes or bile ductular cells." ;
  rdfs:subClassOf obo:BTO_0004270 .

obo:BTO_0001524 a rdfs:Class ;
  rdfs:label "WIL2-NS cell" ;
  rdfs:comment "Spleen; B lymphocyte; hereditary spherocytosis cell line, established from a caucasian 5 year old male. The line was derived from the WIL-2 B cell line." .

obo:BTO_0003090 a rdfs:Class ;
  rdfs:label "subventricular zone" ;
  rdfs:comment "The subventricular zone (SVZ) is a paired brain structure situated throughout the lateral walls of the lateral ventricles. Along with the subgranular zone of dentate gyrus, subventricular zone serves as a source of neural stem cells in the process of adult neurogenesis. It harbors the largest population of proliferating cells in the adult brain of rodents, monkeys and humans. Neurons generated in SVZ travel to the olfactory bulb via the rostral migratory stream." .

obo:BTO_0000667 a rdfs:Class ;
  rdfs:label "keratinocyte" ;
  rdfs:comment "Skin cell, of the keratinized layer of epidermis: its characteristic intermediate filament protein is cytokeratin. A cell of the stratum spinosum of the epidermis." ;
  rdfs:subClassOf obo:BTO_0001470 .

obo:BTO_0006502 a rdfs:Class ;
  rdfs:label "Jar-GnT4a cell" ;
  rdfs:comment "Human choriocarcinoma cell line with GnT-IVa overexpression." .

obo:BTO_0002998 a rdfs:Class ;
  rdfs:label "LNCaP-C4-2B4 cell" ;
  rdfs:comment "Androgen-insensitive subline of LNCaP." .

obo:BTO_0004902 a rdfs:Class ;
  rdfs:label "cholinergic neuron" ;
  rdfs:comment "Nerves which synthesize the neurotransmitter acetylcholine in their terminals; they include alpha-motor neurons of the spinal cord, cranial nerves innervating skeletal muscle, preganglionic sympathetic and postganglionic parasympathetic neurons." ;
  rdfs:subClassOf obo:BTO_0000925 , obo:BTO_0000938 .

obo:BTO_0005919 a rdfs:Class ;
  rdfs:label "OPM-2 cell" ;
  rdfs:comment "Human multiple myeloma established from the peripheral blood of a 56-year-old woman with multiple myeloma in leukemic phase in 1982." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0001213 a rdfs:Class ;
  rdfs:label "Yoshida ascites sarcoma cell" ;
  rdfs:subClassOf obo:BTO_0001214 .

obo:BTO_0005469 a rdfs:Class ;
  rdfs:label "RPK-9 cell" ;
  rdfs:comment "Parental and gemcitabine resistant pancreatic cancer cell line." .

obo:BTO_0001749 a rdfs:Class ;
  rdfs:label "jaw" ;
  rdfs:comment "1: Either of two bony or cartilaginous structures that in most vertebrates form the framework of the mouth and hold the teeth. 2: Any of various structures of invertebrates that have an analogous function to vertebrate jaws." .

obo:BTO_0005077 a rdfs:Class ;
  rdfs:label "LL24 cell" ;
  rdfs:comment "Human diploid lung fibroblast cell line, derived from normal tissue taken at post-mortem from the lung of a 5 year old male." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0001123 a rdfs:Class ;
  rdfs:label "peripheral ganglion" ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0005865 a rdfs:Class ;
  rdfs:label "U-251SP cell" ;
  rdfs:comment "Human glioma cell line." .

obo:BTO_0001750 a rdfs:Class ;
  rdfs:label "mandibular condyle" ;
  rdfs:comment "The posterior process on the ramus of the mandible composed of two parts: a superior part, the articular portion, and an inferior part, the condylar neck." .

obo:BTO_0003138 a rdfs:Class ;
  rdfs:label "UM-SCC-1 cell" ;
  rdfs:comment "Head and neck squamous cell carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0001016 a rdfs:Class ;
  rdfs:label "pericardial fluid" ;
  rdfs:comment "A fluid found in small amounts in the potential space between the parietal and visceral laminae of the serous pericardium." .

obo:BTO_0002937 a rdfs:Class ;
  rdfs:label "S-16 cell" ;
  rdfs:comment "Rat immortalized Schwann cell line." ;
  rdfs:subClassOf obo:BTO_0001216 .

obo:BTO_0004332 a rdfs:Class ;
  rdfs:label "UW228-3 cell" ;
  rdfs:comment "Human medulloblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001359 .

obo:BTO_0003799 a rdfs:Class ;
  rdfs:label "secretory trichome" ;
  rdfs:comment "Trichome that secretes a substance." ;
  rdfs:subClassOf obo:BTO_0001395 .

obo:BTO_0002542 a rdfs:Class ;
  rdfs:label "femoral muscle" ;
  rdfs:comment "Origin: anterior and lateral surfaces of femur; insertion: patella, common tendon of quadriceps femoris; innervation: femoral; action, extends leg." ;
  rdfs:subClassOf obo:BTO_0000722 .

obo:BTO_0000585 a rdfs:Class ;
  rdfs:label "intraocular melanoma cell" ;
  rdfs:comment "Cancer cell of the part of the eye called the uvea, which is composed of the iris (the colored part of the eye), the ciliary body (a muscle in the eye), and the choroid (a layer of tissue in the back of the eye). It is a type of MELANOMA and a very rare cancer, but the most common form of EYE CANCER in adults. If melanoma starts in the iris, there may be a dark spot on the iris. A symptom of melanoma in the ciliary body or choroid may be blurry vision." ;
  rdfs:subClassOf obo:BTO_0000579 , obo:BTO_0000848 .

obo:BTO_0005856 a rdfs:Class ;
  rdfs:label "root apex" ;
  rdfs:comment "The part of the root where growth and development starts is the root apex. Close to the tip is where the production of new cells and the elongation of the recently-made cells take place." .

obo:BTO_0003346 a rdfs:Class ;
  rdfs:label "corneal fibroblast cell line" ;
  rdfs:subClassOf obo:BTO_0003221 .

obo:BTO_0005356 a rdfs:Class ;
  rdfs:label "Hughes cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0004315 a rdfs:Class ;
  rdfs:label "HTD-114 cell" ;
  rdfs:comment "Adenine phosphoribosyltransferase (APRT) -deficient human fibrosarcoma cell line." .

obo:BTO_0004372 a rdfs:Class ;
  rdfs:label "superior vestibular nucleus" ;
  rdfs:comment "The one of the four vestibular nuclei on each side of the medulla oblongata that is situated dorsal to the lateral vestibular nucleus at the junction of the floor and lateral wall of the fourth ventricle and that sends ascending fibers to the oculomotor and trochlear nuclei in the cerebrum on the same side of the brain." ;
  rdfs:subClassOf obo:BTO_0004368 .

obo:BTO_0006124 a rdfs:Class ;
  rdfs:label "C3ABR cell" ;
  rdfs:comment "Human lymphoblastoid cell line; established by Epstein-Barr virus transformation from an healthy individual." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0000650 a rdfs:Class ;
  rdfs:label "endocrine pancreas" ;
  rdfs:comment "That part of the pancreas that acts as an endocrine gland, consisting of the islets of Langerhans, which secrete insulin, glucagon, somatostatin, and sometimes pancreatic polypeptide directly into the bloodstream." .

obo:BTO_0002100 a rdfs:Class ;
  rdfs:label "outer ear" ;
  rdfs:comment "The portion of the auditory organ comprising the auricle and the external acoustic meatus." .

obo:BTO_0000940 a rdfs:Class ;
  rdfs:label "juice vesicle" ;
  rdfs:comment "The membranous and fluid-filled cell in a plant." .

obo:BTO_0004747 a rdfs:Class ;
  rdfs:label "NCI-H716 cell" ;
  rdfs:comment "A cell line derived from a poorly differentiated adenocarcinoma of the caecum." ;
  rdfs:subClassOf obo:BTO_0004746 .

obo:BTO_0005199 a rdfs:Class ;
  rdfs:label "CEM-ADR5000 cell" ;
  rdfs:comment "Doxorubicin-resistant human acute T lymphoblastic leukemia cell line CEM/ADR5000." .

obo:BTO_0000617 a rdfs:Class ;
  rdfs:label "ileal carcinoid cell" ;
  rdfs:subClassOf obo:BTO_0000729 .

obo:BTO_0003170 a rdfs:Class ;
  rdfs:label "SNU-398 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0005943 a rdfs:Class ;
  rdfs:label "mesenteric adipose tissue" ;
  rdfs:comment "Visceral fat is composed of several adipose depots, including mesenteric, epididymal white adipose tissue EWAT, and perirenal depots." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0000829 a rdfs:Class ;
  rdfs:label "marrow" ;
  rdfs:comment "1: A soft highly vascular modified connective tissue that occupies the cavities and cancellous part of most bones. 2: The substance of the spinal cord." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0002818 a rdfs:Class ;
  rdfs:label "HCE-7 cell" ;
  rdfs:comment "Human esophageal SCC cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0001044 a rdfs:Class ;
  rdfs:label "phagocyte" ;
  rdfs:comment "A cell, as a white blood cell, that engulfs and consumes foreign material, as microorganisms, and debris." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0000973 a rdfs:Class ;
  rdfs:label "respiratory mucosa" ;
  rdfs:comment "The mucous membrane lining the respiratory tract." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0001369 a rdfs:Class ;
  rdfs:label "vertebrate muscular system" ;
  rdfs:subClassOf obo:BTO_0001485 .

obo:BTO_0005698 a rdfs:Class ;
  rdfs:label "trichoblast cell" ;
  rdfs:comment "A root epidermal cell that will give rise to a root hair." ;
  rdfs:subClassOf obo:BTO_0005699 .

obo:BTO_0001321 a rdfs:Class ;
  rdfs:label "LNCaP cell" ;
  rdfs:comment "Human prostate carcinoma, established from the left supraclavicular lymph node metastasis from a 50-year-old man with prostate carcinoma in 1977; cells were described to be androgen-sensitive." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005188 a rdfs:Class ;
  rdfs:label "trunk kidney" ;
  rdfs:comment "The kidney of the channel catfish is completely separated into the head and trunk kidneys. The head kidney is involved in endocrine and hemopoietic functions and the trunk kidney functions primarily as part of the excretory system." ;
  rdfs:subClassOf obo:BTO_0000671 .

obo:BTO_0006362 a rdfs:Class ;
  rdfs:label "RMC cell" ;
  rdfs:comment "Rat kidney mesangial cell line. Rat mesangial cell at passage 8 were immortalized with pSV3-Neo and maintained in the presence of G418." ;
  rdfs:subClassOf obo:BTO_0003581 .

obo:BTO_0005651 a rdfs:Class ;
  rdfs:label "culture condition:scyllo-inositol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002490 a rdfs:Class ;
  rdfs:label "culture condition:acetylacetone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002627 a rdfs:Class ;
  rdfs:label "T-lymphoblastoma cell" ;
  rdfs:subClassOf obo:BTO_0000774 .

obo:BTO_0000559 a rdfs:Class ;
  rdfs:label "hatching liquid" .

obo:BTO_0000606 a rdfs:Class ;
  rdfs:label "LK-63 cell" ;
  rdfs:comment "Pre-B-cell acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0004079 a rdfs:Class ;
  rdfs:label "H-650 cell" ;
  rdfs:comment "Non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0006215 a rdfs:Class ;
  rdfs:label "KIJ-308T cell" ;
  rdfs:comment "Clear cell renal cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0001344 a rdfs:Class ;
  rdfs:label "adult T-cell lymphoma cell" ;
  rdfs:comment "A cell of a malignancy of mature T lymphocytes with onset in adulthood, believed to be caused by human T-lymphotropic virus 1 and characterized by circulating pleomorphic malignant lymphocytes, skin lesions, lymphadenopathy, hepatosplenomegaly, hypercalcemia, and lytic bone lesions; its course may be subacute or chronic." ;
  rdfs:subClassOf obo:BTO_0001271 , obo:BTO_0001825 .

obo:BTO_0000420 a rdfs:Class ;
  rdfs:label "neck" ;
  rdfs:comment "The part of an animal that connects the head with the body." .

obo:BTO_0000711 a rdfs:Class ;
  rdfs:label "glioma cell line" ;
  rdfs:comment "A glioma is a type of tumor that starts in the glial cells of the brain or the spine. Gliomas comprise about 30 per cent of all brain tumors and central nervous system tumors, and 80 per cent of all malignant brain tumors." .

obo:BTO_0003375 a rdfs:Class ;
  rdfs:label "archegonium" ;
  rdfs:comment "The structure on the pteridophyte prothallus that produces the sessile female gametes." ;
  rdfs:subClassOf obo:BTO_0003373 .

obo:BTO_0002050 a rdfs:Class ;
  rdfs:label "osteogenic cell" ;
  rdfs:comment "One of the cell's in the inner layer of the periosteum that forms osseous tissue." .

obo:BTO_0005246 a rdfs:Class ;
  rdfs:label "culture condition:CD31- cell" ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0004428 a rdfs:Class ;
  rdfs:label "H4-II-E-C3 cell" ;
  rdfs:comment "Rat hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001250 a rdfs:Class ;
  rdfs:label "silk gland" ;
  rdfs:comment "Any of the glands in silk-spinning insects and spiders that secrete a protein liquid that hardens into silk on exposure to air." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0001358 a rdfs:Class ;
  rdfs:label "culture condition:terephthalate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002137 a rdfs:Class ;
  rdfs:label "MiaPaCa-2 cell" ;
  rdfs:comment "Human pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0000200 a rdfs:Class ;
  rdfs:label "culture condition:2-chloropropionate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002111 a rdfs:Class ;
  rdfs:label "tela submucosa intestini crassi" ;
  rdfs:comment "The layer of tissue underlying the tunica mucosa of the large intestine." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0006481 a rdfs:Class ;
  rdfs:label "lateral hypothalamus" ;
  rdfs:comment "The lateral hypothalamus contains the primary orexinergic nucleus within the hypothalamus that widely projects throughout the nervous system. This system of neurons mediates an array of cognitive and physical processes, such as promoting feeding behavior and arousal, reducing pain perception, and regulating body temperature, digestive functions, and blood pressure, among many others. It extends throughout most of the rostrocaudal extent of the hypothalamus lateral to the column of the fornix; includes lateral tuberal nuclei, tuberomammillary nuclei, and diffuse populations of cells." .

obo:BTO_0000697 a rdfs:Class ;
  rdfs:label "culture condition:L-rhamnose-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0005189 a rdfs:Class ;
  rdfs:label "head kidney" ;
  rdfs:comment "The kidney of the channel catfish is completely separated into the head and trunk kidneys. The head kidney is involved in endocrine and hemopoietic functions and the trunk kidney functions primarily as part of the excretory system." ;
  rdfs:subClassOf obo:BTO_0000671 .

obo:BTO_0001101 a rdfs:Class ;
  rdfs:label "pons" ;
  rdfs:comment "A broad mass of chiefly transverse nerve fibers conspicuous on the ventral surface of the brain of man and lower mammals at the anterior end of the medulla oblongata." .

obo:BTO_0002018 a rdfs:Class ;
  rdfs:label "corpus cavernosum clitoridis" ;
  rdfs:comment "A column of erectile tissue on either side (right and left), the two fusing to form the body of the clitoris." .

obo:BTO_0004090 a rdfs:Class ;
  rdfs:label "pancreatic invasive ductal adenocarcinoma cell" ;
  rdfs:subClassOf obo:BTO_0003081 .

obo:BTO_0000641 a rdfs:Class ;
  rdfs:label "colon descendens" ;
  rdfs:comment "The portion of the colon between the left colic flexure and the sigmoid colon at the pelvic brim; the portion of the descending colon lying in the left iliac fossa is sometimes called the iliac colon." .

obo:BTO_0004875 a rdfs:Class ;
  rdfs:label "labellum" ;
  rdfs:comment "The labellum is part of an Orchid, Canna or other less known flower that serves to attract insects that pollinate the flower, and acts as a landing platform for those insects. The labellum is a modified petal and can be distinguished from the other petals and from the sepals by its large size and its often irregular shape. It is not unusual for the other two petals of an orchid flower to look like the sepals, so that the labellum stands out as distinct." ;
  rdfs:subClassOf obo:BTO_0001040 .

obo:BTO_0005593 a rdfs:Class ;
  rdfs:label "mesocorticolimbic dopaminergic system" ;
  rdfs:comment "Because of the overlap between the mesocortical and the mesolimbic dopaminergic systems, they are often collectively referred to as the mesocorticolimbic system." ;
  rdfs:subClassOf obo:BTO_0003954 .

obo:BTO_0004589 a rdfs:Class ;
  rdfs:label "HN cell" ;
  rdfs:comment "Oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0003955 a rdfs:Class ;
  rdfs:label "N-11 cell" ;
  rdfs:comment "Murine microglial cell line." ;
  rdfs:subClassOf obo:BTO_0003349 .

obo:BTO_0001065 a rdfs:Class ;
  rdfs:label "TSU-Pr1 cell" ;
  rdfs:comment "Originally thought to be a human prostate epithelial carcinoma cell line." .

obo:BTO_0000664 a rdfs:Class ;
  rdfs:label "K-562 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in blast crisis established from the pleural effusion of a 53-year-old woman with chronic myeloid leukemia (CML) in blast crisis in 1970." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0000962 a rdfs:Class ;
  rdfs:label "oligodendrocyte" ;
  rdfs:comment "One of the cells comprising the oligodendroglia." ;
  rdfs:subClassOf obo:BTO_0000771 .

obo:BTO_0006135 a rdfs:Class ;
  rdfs:label "HNE-1 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0002638 a rdfs:Class ;
  rdfs:label "Hs 925.T cell" ;
  rdfs:comment "Human skin pagetoid sarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0005789 a rdfs:Class ;
  rdfs:label "root band" ;
  rdfs:comment "The node consists of a growth ring or intercalary meristem, the root band (containing root primordia) and a bud above the leaf scar where the leaf sheath attaches, which delimits the node from the internode below." ;
  rdfs:subClassOf obo:BTO_0001156 .

obo:BTO_0006243 a rdfs:Class ;
  rdfs:label "bacteriocyte" ;
  rdfs:comment "A modified fat cell occurring in the fat body of certain insects and containing groups of bacterium-shaped rods that are believed to be symbiotic bacteria." ;
  rdfs:subClassOf obo:BTO_0000443 .

obo:BTO_0002430 a rdfs:Class ;
  rdfs:label "Lec15.1 CHO cell" ;
  rdfs:comment "Lec15.1 Chinese hamster ovary cells are deficient in DPM synthase activity." .

obo:BTO_0003736 a rdfs:Class ;
  rdfs:label "thyroid epithelial cell" ;
  rdfs:comment "An epithelial cell lining the thyroid follicle." ;
  rdfs:subClassOf obo:BTO_0000414 .

obo:BTO_0001723 a rdfs:Class ;
  rdfs:label "enamel epithelium" ;
  rdfs:comment "In the developing tooth, the inner or internal layer of cells (ameloblasts) of the enamel organ that deposit the organic matrix of enamel, plus the outer or external layer of cuboidal cells. The reduced enamel epithelium is the remains of both layers after enamel formation is complete." .

obo:BTO_0004158 a rdfs:Class ;
  rdfs:label "Ma-45 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line; established from tissue or pleural effusion of Japanese patients with advanced NSCLC." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0005015 a rdfs:Class ;
  rdfs:label "ASTC-a-1 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0006517 a rdfs:Class ;
  rdfs:label "maxillary palp" ;
  rdfs:comment "Embryologically, the maxillae are derived from the 4th and 5th segment of the head and the maxillary palps." .

obo:BTO_0001575 a rdfs:Class ;
  rdfs:label "choriocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000807 .

obo:BTO_0002451 a rdfs:Class ;
  rdfs:label "dorsal hypothalamic nucleus" ;
  rdfs:comment "A nerve cell nucleus situated in the dorsal portion of the intermediate hypothalamic region." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0003568 a rdfs:Class ;
  rdfs:label "mammary gland cell line" ;
  rdfs:subClassOf obo:BTO_0000816 .

obo:BTO_0003390 a rdfs:Class ;
  rdfs:label "high vocal center" ;
  rdfs:comment "HVC is a nucleus in the brain of the songbirds (order passeriformes) necessary for both the learning and the production of bird song. It is located in the lateral caudal nidopallium and has projections to both the direct and the anterior forebrain pathways." .

obo:BTO_0006226 a rdfs:Class ;
  rdfs:label "OP-27 cell" ;
  rdfs:comment "Mouse olfactory placode cell line." ;
  rdfs:subClassOf obo:BTO_0006225 .

obo:BTO_0003651 a rdfs:Class ;
  rdfs:label "spindle cell" ;
  rdfs:comment "A fusiform cell, such as those in the deeper layers of the cerebral cortex." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0005055 a rdfs:Class ;
  rdfs:label "scale" ;
  rdfs:comment "One of the many small platelike dermal or epidermal structures that characteristically form the external covering of fishes, reptiles, and certain mammals." .

obo:BTO_0000470 a rdfs:Class ;
  rdfs:label "flower bud" ;
  rdfs:comment "A bud that will develop into a flower." ;
  rdfs:subClassOf obo:BTO_0000158 .

obo:BTO_0005040 a rdfs:Class ;
  rdfs:label "HN-12 cell" ;
  rdfs:comment "Head and neck squamous carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0003303 a rdfs:Class ;
  rdfs:label "MDA-Panc-28 cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0003358 a rdfs:Class ;
  rdfs:label "groin" ;
  rdfs:comment "In anatomy, the area where the upper thigh meets the trunk. More precisely, the fold or depression marking the juncture of the lower abdomen and the inner part of the thigh." .

obo:BTO_0000397 a rdfs:Class ;
  rdfs:label "tooth" ;
  rdfs:comment "1: One of the hard bony appendages that are borne on the jaws or in many of the lower vertebrates on other bones in the walls of the mouth or pharynx and serve especially for the prehension and mastication of food and as weapons of offense and defense. 2: Any of various usually hard and sharp processes especially about the mouth of an invertebrate." .

obo:BTO_0004629 a rdfs:Class ;
  rdfs:label "metaphloem" ;
  rdfs:comment "The primary phloem that forms after differentiation of the protophloem." .

obo:BTO_0003191 a rdfs:Class ;
  rdfs:label "SNU-387 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0005408 a rdfs:Class ;
  rdfs:label "culture condition:5-methylsalicylate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004102 a rdfs:Class ;
  rdfs:label "cerebral cortical neuron" ;
  rdfs:comment "One of the nerve cells that make up the cortex of the brain." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0003473 a rdfs:Class ;
  rdfs:label "polymorphonuclear neutrophil" ;
  rdfs:comment "The usual type of mature neutrophil, which has a multilobar nucleus." ;
  rdfs:subClassOf obo:BTO_0000130 .

obo:BTO_0001218 a rdfs:Class ;
  rdfs:label "scapula" ;
  rdfs:comment "Either of a pair of large triangular bones lying one in each dorsal lateral scapula: part of the thorax, being the principal bone of the corresponding half of the shoulder girdle, and articulating with the corresponding clavicle or coracoid." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0004491 a rdfs:Class ;
  rdfs:label "RL95-2 cell" ;
  rdfs:comment "Human endometrial cell line, derived from a Grade 2 moderately differentiated adenosquamous carcinoma of the endometrium." ;
  rdfs:subClassOf obo:BTO_0001555 .

obo:BTO_0001310 a rdfs:Class ;
  rdfs:label "storage tissue" .

obo:BTO_0005480 a rdfs:Class ;
  rdfs:label "WM-278 cell" ;
  rdfs:comment "This cell line was established from skin taken from a patient with primary nodular melanoma in vertical growth phase." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006349 a rdfs:Class ;
  rdfs:label "type B spermatogonium" ;
  rdfs:comment "Type B spermatogonia differentiate into spermatocytes, which in turn undergo meiosis to eventually form mature sperm cells." ;
  rdfs:subClassOf obo:BTO_0000958 , obo:BTO_0002666 .

obo:BTO_0000066 a rdfs:Class ;
  rdfs:label "amniocyte" ;
  rdfs:comment "A cell of fetal origin obtained in an amniotic fluid specimen." .

obo:BTO_0000170 a rdfs:Class ;
  rdfs:label "cambium" ;
  rdfs:comment "A thin formative layer between the xylem and phloem of most vascular plants that gives rise to new cells and is responsible for secondary growth; A lateral meristem in vascular plants, including the vascular cambium and cork cambium, that forms parallel rows of cells resulting in secondary tissues." .

obo:BTO_0004592 a rdfs:Class ;
  rdfs:label "bone matrix" ;
  rdfs:comment "The intercellular substance of bone tissue consisting of collagen fibers, ground substance, and inorganic bone salts." .

obo:BTO_0001570 a rdfs:Class ;
  rdfs:label "MDA-MB-468 cell" ;
  rdfs:comment "Human mammary gland adenocarcinoma cell line. It was isolated in 1977 by  Cailleau from a pleural effusion of a 51-year-old Black female patient with metastatic adenocarcinoma of the breast." ;
  rdfs:subClassOf obo:BTO_0001912 , obo:BTO_0004086 .

obo:BTO_0003871 a rdfs:Class ;
  rdfs:label "uterine endometrial cancer cell" ;
  rdfs:comment "More than 95% of uterine cancers arise in the endometrium. Endometrial cancer develops when the cells that make up the endometrium become abnormal and grow uncontrollably." ;
  rdfs:subClassOf obo:BTO_0000257 .

obo:BTO_0000689 a rdfs:Class ;
  rdfs:label "culture condition:L-allo-threonine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001243 a rdfs:Class ;
  rdfs:label "shoot" ;
  rdfs:comment "A sending out of new growth or the growth sent out: as a stem or branch with its leaves and appendages especially when not yet mature." ;
  rdfs:subClassOf obo:BTO_0001461 .

obo:BTO_0004542 a rdfs:Class ;
  rdfs:label "principal cell" ;
  rdfs:comment "For the collecting ducts, the specific cell type is the principal cell." .

obo:BTO_0005800 a rdfs:Class ;
  rdfs:label "Neu-7 cell" ;
  rdfs:comment "Murine astrocyte cell line." ;
  rdfs:subClassOf obo:BTO_0002600 .

obo:BTO_0002944 a rdfs:Class ;
  rdfs:label "DU-2 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000389 a rdfs:Class ;
  rdfs:label "mature ovarian follicle" ;
  rdfs:comment "A liquid-filled cavity in a mammalian ovary containing a mature egg before ovulation." ;
  rdfs:subClassOf obo:BTO_0000475 .

obo:BTO_0004882 a rdfs:Class ;
  rdfs:label "ventral midbrain" ;
  rdfs:comment "Added as synonym to tegmentum." .

obo:BTO_0002053 a rdfs:Class ;
  rdfs:label "seminal vesicle fluid" ;
  rdfs:comment "The alkaline seminal vesicle fluid contributes 70% of semen volume and provides additional components, including the enzymes for coagulum formation." .

obo:BTO_0005645 a rdfs:Class ;
  rdfs:label "culture condition:D-glucosaminate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003462 a rdfs:Class ;
  rdfs:label "outer dental epithelium" ;
  rdfs:comment "External enamel epithelium, the cuboidal cells of the outer layer of the odontogenic organ of a developing tooth." ;
  rdfs:subClassOf obo:BTO_0001723 .

obo:BTO_0002800 a rdfs:Class ;
  rdfs:label "culture condition:succinate/ammonium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000801 a rdfs:Class ;
  rdfs:label "macrophage" ;
  rdfs:comment "Relatively long-lived phagocytic cell of mammalian tissues, derived from blood monocyte. Macrophages from different sites have distinctly different properties. Main types are peritoneal and alveolar macrophages, tissue macrophages (histiocytes), Kupffer cells of the liver, and osteoclasts. In response to foreign materials may become stimulated or activated. Macrophages play an important role in killing of some bacteria, protozoa, and tumour cells, release substances that stimulate other cells of the immune system, and are involved in antigen presentation. May further differentiate within chronic inflammatory lesions to epithelioid cells or may fuse to form foreign body giant cells or Langhans giant cells." .

obo:BTO_0005080 a rdfs:Class ;
  rdfs:label "LLC-WRC 256 cell" ;
  rdfs:comment "Rat breast carcinoma cell line, established from the Walker 256 rat tumor that has been maintained in vivo for over 60 years." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0005228 a rdfs:Class ;
  rdfs:label "YT cell" ;
  rdfs:comment "Human T/NK cell leukemia cell line, established from the pericardial fluid of a 15-year-old man with acute lymphoblastic leukemia (ALL) at relapse (with accompanying thymoma) in 1983." ;
  rdfs:subClassOf obo:BTO_0002030 , obo:BTO_0002144 .

obo:BTO_0005738 a rdfs:Class ;
  rdfs:label "lung microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0003124 .

obo:BTO_0006089 a rdfs:Class ;
  rdfs:label "CCD-1113Sk cell" ;
  rdfs:comment "Human skin normal fibroblast cell line; established from a 39 years old black female from normal breast tissue." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001958 a rdfs:Class ;
  rdfs:label "embryonic fibroblast cell line" ;
  rdfs:subClassOf obo:BTO_0000453 , obo:BTO_0000669 .

obo:BTO_0005149 a rdfs:Class ;
  rdfs:label "C-643 cell" ;
  rdfs:comment "Human anaplastic thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0006121 a rdfs:Class ;
  rdfs:label "synergid cell" ;
  rdfs:comment "Synergid cells are two specialized cells that lie adjacent to the egg cell in the female gametophyte of angiosperms and play an essential role in pollen tube guidance and function. The term synergid comes from the Greek synergos, which means working together and was reportedly coined by Eduard Strasburger, a famous 19th century botanist who was one of the first to note that these cells somehow assist fertilization of the egg." .

obo:BTO_0001049 a rdfs:Class ;
  rdfs:label "pharynx" ;
  rdfs:comment "The part of the vertebrate alimentary canal between the cavity of the mouth and the esophagus. The pharynx of Nematodes is an efficient pump and forces food into the intestines." .

obo:BTO_0002105 a rdfs:Class ;
  rdfs:label "perisympathetic organ" ;
  rdfs:comment "In the perisympathetic organs of insects there is a neurohemal structure acting as neurohormonal release sites." ;
  rdfs:subClassOf obo:BTO_0002106 .

obo:BTO_0003433 a rdfs:Class ;
  rdfs:label "endometrial gland" ;
  rdfs:comment "The mucous secreting gland associated with the epithelium lining the uterus. These glands develop and secrete each menstrual cycle and are thought to provide initial blastocyst nutrition prior to implantation." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0002717 a rdfs:Class ;
  rdfs:label "MDA-886 cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0003072 a rdfs:Class ;
  rdfs:label "human lens epithelial cell line" ;
  rdfs:comment "Human lens epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0001874 .

obo:BTO_0000614 a rdfs:Class ;
  rdfs:label "hypothalamus" ;
  rdfs:comment "The ventral part of the diencephalon that forms the floor and part of the lateral wall of the third ventricle. Anatomically, it includes the preoptic area, optic tract, optic chiasm, mammillary bodies, tuber cinereum, infundibulum, and neurohypophysis, but for physiological purposes the neurohypophysis is considered a distinct structure. The hypothalamus may be divided into five regions or areas (area hypothalamica rostralis, area hypothalamica dorsalis, area hypothalamica intermedia, area hypothalamica lateralis and area hypothalamica posterior) or into three longitudinal zones (periventricular zone, medial zone, and lateral zone). The hypothalamic nuclei constitute that part of the corticodiencephalic mechanism that activates, controls and integrates the peripheral autonomic mechanisms, endocrine activity, and many somatic functions, e.g., a general regulation of water balance, body temperature, sleep, and food intake, and the development of secondary sex characteristics. The hypothalamus secretes vasopressin and oxytocin, which are stored in the pituitary, as well as many releasing factors (hypophysiotropic hormones), by means of which it exerts control over functions of the adenohypophysis." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0000505 a rdfs:Class ;
  rdfs:label "gastric corpus" ;
  rdfs:comment "That part of the stomach between the fundus and the pyloric part." .

obo:BTO_0005447 a rdfs:Class ;
  rdfs:label "VMM39 cell" ;
  rdfs:comment "Melanoma cell line, isolated from lymph node metastasis from three separate patients." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003579 a rdfs:Class ;
  rdfs:label "HGF cell" ;
  rdfs:comment "Human gingival stroma cell line." ;
  rdfs:subClassOf obo:BTO_0003578 .

obo:BTO_0002278 a rdfs:Class ;
  rdfs:label "macrophage cell line" ;
  rdfs:subClassOf obo:BTO_0001035 .

obo:BTO_0000511 a rdfs:Class ;
  rdfs:label "gastrointestinal tract" ;
  rdfs:comment "The gastrointestinal tract includes both stomach and intestine." .

obo:BTO_0003549 a rdfs:Class ;
  rdfs:label "KP-1N cell" ;
  rdfs:comment "Human pancreatic cancer cell line, obtained from liver metastases of pancreatic tumors." .

obo:BTO_0001466 a rdfs:Class ;
  rdfs:label "BT-20 cell" ;
  rdfs:comment "Human, Caucasian, breast, carcinoma cell line. Morphology: epithelial-like; species: human, Caucasian female 74 years old; tissue: breast; tumor: carcinoma." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0000906 a rdfs:Class ;
  rdfs:label "myeloid cell line" .

obo:BTO_0003924 a rdfs:Class ;
  rdfs:label "KHOS-321H cell" ;
  rdfs:comment "Human osteosarcoma cell line; this line is a revertant of KHOS/NP (R-970-5) cell line that no longer has a rescuable Kirsten murine sarcoma virus genome." .

obo:BTO_0002393 a rdfs:Class ;
  rdfs:label "N-27 cell" ;
  rdfs:comment "N27 is an immortalized dopaminergic neuronal cell line isolated from fetal rat mesencephalic cultures." ;
  rdfs:subClassOf obo:BTO_0000947 , obo:BTO_0001242 .

obo:BTO_0003383 a rdfs:Class ;
  rdfs:label "semicircular canal" ;
  rdfs:comment "Three membranous semicircular tubes contained in the bony labyrinth of the inner ear. They are concerned with equilibrium and the interpretation of the bodys position in space. The three canals are set anterior, posterior, and lateral, at right angles to each other and are situated superior and posterior to the vestibule." .

obo:BTO_0003512 a rdfs:Class ;
  rdfs:label "alveolar epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0000609 a rdfs:Class ;
  rdfs:label "husk" ;
  rdfs:comment "A usually dry or membranous outer covering (as a pod or hull or one composed of bracts) of various seeds and fruits." ;
  rdfs:subClassOf obo:BTO_0001227 .

obo:BTO_0004185 a rdfs:Class ;
  rdfs:label "olfactory receptor neuron" ;
  rdfs:comment "Neurons in the olfactory epithelium with proteins that bind, and thus detect, odorants. Olfactory receptor neurons are bipolar. Unlike other neurons, they can be generated from precursor cells in adults." ;
  rdfs:subClassOf obo:BTO_0001037 .

obo:BTO_0004236 a rdfs:Class ;
  rdfs:label "Y1-BS1 cell" ;
  rdfs:comment "A sub-clone of Y1 mouse adrenocortical cells." .

obo:BTO_0006021 a rdfs:Class ;
  rdfs:label "NCI-H2110 cell" ;
  rdfs:comment "Human non-small cell lung adenocarcinoma cell line; established from a pleural effusion metastasis of the lung." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0000035 a rdfs:Class ;
  rdfs:label "colorectal adenocarcinoma cell" ;
  rdfs:comment "Adenocarcinoma cell related to the colon and/or rectum." ;
  rdfs:subClassOf obo:BTO_0000193 , obo:BTO_0000604 , obo:BTO_0001533 .

obo:BTO_0001918 a rdfs:Class ;
  rdfs:label "LIM1863 cell" ;
  rdfs:comment "Colon carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0006108 a rdfs:Class ;
  rdfs:label "endometrial glandular epithelium" .

obo:BTO_0000201 a rdfs:Class ;
  rdfs:label "pheochromocytoma cell line" .

obo:BTO_0003111 a rdfs:Class ;
  rdfs:label "VIPA cell" ;
  rdfs:comment "HPV18 positive human uterine cervix carcinoma cell line; established from stage IIA squamous cell cervical carcinoma explants from Mexican female at the National University of Mexico." ;
  rdfs:subClassOf obo:BTO_0001967 .

obo:BTO_0005749 a rdfs:Class ;
  rdfs:label "16-HBE cell" ;
  rdfs:comment "An immortalized but nontransformed cell line, derived from ciliated human bronchial epithelial cells that line the airway of the lung." .

obo:BTO_0003523 a rdfs:Class ;
  rdfs:label "PAV-1 cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0003610 a rdfs:Class ;
  rdfs:label "culture condition:L-galactonate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002180 a rdfs:Class ;
  rdfs:label "184-B5 cell" ;
  rdfs:comment "Human mammary gland, breast epithelium cell line; established from normal mammary tissue obtained from a normal reduction mammoplasty. Cells derived from the tissue were exposed to benzo-alpha-pyrene, and a transformed line was established." .

obo:BTO_0001810 a rdfs:Class ;
  rdfs:label "sclerotium" ;
  rdfs:comment "A compact mass of hardened mycelium stored with reserve food material that in some higher fungi becomes detached and remains dormant until a favorable opportunity for growth occurs." ;
  rdfs:subClassOf obo:BTO_0001436 .

obo:BTO_0003444 a rdfs:Class ;
  rdfs:label "HCC-1395 cell" ;
  rdfs:comment "Human mammary gland primary ductal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0006399 a rdfs:Class ;
  rdfs:label "HF-19 cell" ;
  rdfs:comment "Human foetal lung fibroblast cell line; established from a 14 week old female foetus." ;
  rdfs:subClassOf obo:BTO_0000161 , obo:BTO_0001242 .

obo:BTO_0003296 a rdfs:Class ;
  rdfs:label "bone marrow stromal cell line" .

obo:BTO_0004191 a rdfs:Class ;
  rdfs:label "PC-J cell" ;
  rdfs:comment "A subculture cell line of PC-3." .

obo:BTO_0000433 a rdfs:Class ;
  rdfs:label "exocrine acinar cell" .

obo:BTO_0005375 a rdfs:Class ;
  rdfs:label "oral cell line" .

obo:BTO_0001156 a rdfs:Class ;
  rdfs:label "node" ;
  rdfs:comment "The point on a stem at which leaves and buds are attached." .

obo:BTO_0006416 a rdfs:Class ;
  rdfs:label "Sertoli cell tumor cell line" .

obo:BTO_0005816 a rdfs:Class ;
  rdfs:label "A549-CR cell" ;
  rdfs:comment "A549-CR cell line, was established by repeated subculturing of A549 cells with increasing Cisplatin." .

obo:BTO_0004755 a rdfs:Class ;
  rdfs:label "VERO C1008 cell" ;
  rdfs:comment "This line is a clone of VERO 76." .

obo:BTO_0004923 a rdfs:Class ;
  rdfs:label "NOS-2 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line; derived from serous cystadenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 , obo:BTO_0003804 , obo:BTO_0004883 .

obo:BTO_0003988 a rdfs:Class ;
  rdfs:label "DX-3 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005227 a rdfs:Class ;
  rdfs:label "XC cell" ;
  rdfs:comment "Rat XC sarcoma cell line, derived from a Rous sarcoma virus-induced Wistar strain rat tumor. XC forms syncytia when cultured in the presence of murine leukemia virus-producing mouse cells. However, one XC cell culture (designated as XC-v cells), found to produce type C virus particles, fails to form syncytia in the presence of murine leukemia virus-producing mouse cells." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0004095 a rdfs:Class ;
  rdfs:label "EONT cell" ;
  rdfs:comment "Immortalized epithelial ovarian nontumoral normal cell line." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0004270 a rdfs:Class ;
  rdfs:label "adult liver stem cell" ;
  rdfs:comment "Hepatic progenitor cells can be isolated from fetal liver and extrahepatic tissues." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0005414 a rdfs:Class ;
  rdfs:label "fibrocarcinoma cell" ;
  rdfs:comment "A hard, slow-growing carcinoma composed primarily of fibrous tissue." .

obo:BTO_0003158 a rdfs:Class ;
  rdfs:label "prostate gland anterior lobe" .

obo:BTO_0003697 a rdfs:Class ;
  rdfs:label "endometrial stromal cell" ;
  rdfs:subClassOf obo:BTO_0002064 .

obo:BTO_0005452 a rdfs:Class ;
  rdfs:label "C6/36 cell" ;
  rdfs:comment "Aedes albopictus, mosquito, Asian tiger larval cell line." ;
  rdfs:subClassOf obo:BTO_0002632 .

obo:BTO_0001474 a rdfs:Class ;
  rdfs:label "yolk sac erythroid cell" .

obo:BTO_0000380 a rdfs:Class ;
  rdfs:label "embryonic axis" ;
  rdfs:comment "The main root or shoot body of a seedling. The embryo of mature seeds of Pisum sativum consists of the embryonic axis and the cotyledons." .

obo:BTO_0002239 a rdfs:Class ;
  rdfs:label "endectomycorrhiza" ;
  rdfs:comment "Endectomycorrhiza are organs that are not distinctly one type or the other (see endo- and ectomycorrhiza)." ;
  rdfs:subClassOf obo:BTO_0000893 .

obo:BTO_0002045 a rdfs:Class ;
  rdfs:label "capillary" ;
  rdfs:comment "A capillary tube; especially: any of the smallest blood vessels connecting arterioles with venules and forming networks throughout the body." ;
  rdfs:subClassOf obo:BTO_0001102 .

obo:BTO_0004579 a rdfs:Class ;
  rdfs:label "parenchyma of thyroid gland" ;
  rdfs:comment "The basic cellular tissue comprising the thyroid gland, organized as follicles." ;
  rdfs:subClassOf obo:BTO_0001379 .

obo:BTO_0004220 a rdfs:Class ;
  rdfs:label "SMG-C6 cell" ;
  rdfs:comment "Rat submandibular gland cell line." ;
  rdfs:subClassOf obo:BTO_0004219 .

obo:BTO_0002140 a rdfs:Class ;
  rdfs:label "RPMI-7931 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002331 a rdfs:Class ;
  rdfs:label "PLHC-1 cell" ;
  rdfs:comment "Poeciliopsis lucida hepatoma cell line, a fish cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006036 a rdfs:Class ;
  rdfs:label "subcutaneous tissue cell line" .

obo:BTO_0003166 a rdfs:Class ;
  rdfs:label "10T1/2 cell" ;
  rdfs:comment "Clonal mouse embryo cell line." .

obo:BTO_0000392 a rdfs:Class ;
  rdfs:label "plasma cell" ;
  rdfs:comment "A terminally differentiated cell of the B lymphocyte lineage that produces antibodies; plasma cells are oval or round with extensive rough endoplasmic reticulum, a well-developed Golgi apparatus, and a round nucleus having a characteristic cartwheel heterochromatin pattern." .

obo:BTO_0003650 a rdfs:Class ;
  rdfs:label "optic ganglion" ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0003009 a rdfs:Class ;
  rdfs:label "NCI-H1703 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0000871 a rdfs:Class ;
  rdfs:label "RAG cell" ;
  rdfs:comment "Mouse, BALB/cd, kidney, adenocarcinoma cell line. Derived from the original Renal-2a BALB/cd renal adenocarcinoma. Cells produce the unique kidney specific esterase ES-2 and have been used in somatic cell hybridisation studies because of their azaguanine resistant properties." ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0000383 .

obo:BTO_0001395 a rdfs:Class ;
  rdfs:label "trichome" ;
  rdfs:comment "A filamentous outgrowth; especially: an epidermal hair structure on a plant." .

obo:BTO_0003563 a rdfs:Class ;
  rdfs:label "umbilical artery endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0002875 a rdfs:Class ;
  rdfs:label "CL1-0 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line. The human lung cancer cell line CL1 was established from a 64-years-old man with a poorly differentiated adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0001054 a rdfs:Class ;
  rdfs:label "pheochromocytoma cell" ;
  rdfs:comment "Pheochromocytoma is a rare tumor that arises from tissue in the adrenal gland. The tumor increases production of adrenaline and noradrenaline, which raises blood pressure and heart rate." ;
  rdfs:subClassOf obo:BTO_0000592 .

obo:BTO_0002501 a rdfs:Class ;
  rdfs:label "trabecula" ;
  rdfs:comment "In anatomical nomenclature, a supporting or anchoring strand of connective tissue, such as one extending from a capsule into the substance of the enclosed organ." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0003752 a rdfs:Class ;
  rdfs:label "lamina epithelialis mucosa" ;
  rdfs:comment "The layer of epithelial cells on the surface of the mucosa." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0000330 a rdfs:Class ;
  rdfs:label "culture condition:D-ribose-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0004861 a rdfs:Class ;
  rdfs:label "spiral organ cell line" .

obo:BTO_0000111 a rdfs:Class ;
  rdfs:label "BALB/3T12-3 cell" ;
  rdfs:comment "Derived from a 14-17 day old BALB/c mouse embryo. The cells are tumorigenic, are insensitive to contact inhibition and are susceptible to transformation with SV40 virus." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0006411 a rdfs:Class ;
  rdfs:label "KB-CP5 cell" ;
  rdfs:comment "KB cells growing in 5microgram per milliliter cisplatin." .

obo:BTO_0003893 a rdfs:Class ;
  rdfs:label "HB4a cell" ;
  rdfs:comment "Mammary epithelial cell line; derived by the immortalization of highly-purified preparations of normal human mammary luminal epithelium." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0002292 a rdfs:Class ;
  rdfs:label "flagellum" ;
  rdfs:comment "Long, slender, threadlike, whiplike extension of certain cells or unicellular organisms used mainly for movements (others for signal transduction). In bacteria, the flagella are helical filaments made up of the protein, flagellin, and rotate like screws. In eukaryotes, such as in cells of animals, plants and protists, they are made up of microtubules surrounded by the plasma membrane and enable the cells to move in a whip-like fashion. Some flagella are not used for movement but in sensation and signal transduction by various cell types, e.g. rod photoreceptor cells of the eye, olfactory receptor neurons of the nose, kinocilium in cochlea of the ear." ;
  rdfs:subClassOf obo:BTO_0000464 .

obo:BTO_0003657 a rdfs:Class ;
  rdfs:label "tergal gland" ;
  rdfs:comment "A gland on the dorsal part or plate of a segment of an arthropod. Tergal glands play a key role in German cockroach precopulatory behavior." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0000981 a rdfs:Class ;
  rdfs:label "ovotestis" ;
  rdfs:comment "A hermaphrodite gonad (as in some scale insects)." ;
  rdfs:subClassOf obo:BTO_0000534 .

obo:BTO_0002425 a rdfs:Class ;
  rdfs:label "MSTO-211H cell" ;
  rdfs:comment "Human mesothelioma cell line; established from the pleural effusion of a 62-year-old Caucasian man with mesothelioma (malignant biphasic) who did not have any prior therapy." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0005257 a rdfs:Class ;
  rdfs:label "oropharynx" ;
  rdfs:comment "The area of the throat that is at the back of the mouth. The oropharynx is in contrast to the nasopharynx, the part of the throat that lies behind the nose." .

obo:BTO_0001499 a rdfs:Class ;
  rdfs:label "tear" ;
  rdfs:comment "A drop of clear saline fluid secreted by the lacrimal gland and diffused between the eye and eyelids to moisten the parts and facilitate their motion." .

obo:BTO_0001552 a rdfs:Class ;
  rdfs:label "Yoshida AH-66 cell" ;
  rdfs:comment "Yoshida rat ascites hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0001404 .

obo:BTO_0003288 a rdfs:Class ;
  rdfs:label "NALM-6 cell" ;
  rdfs:comment "Human B cell precursor leukemia cell line; established from the peripheral blood of a 19-year-old man with acute lymphoblastic leukemia (ALL) in relapse in 1976." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0005302 a rdfs:Class ;
  rdfs:label "GI-102 cell" ;
  rdfs:comment "Undifferentiated human ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004624 a rdfs:Class ;
  rdfs:label "YN-1 cell" ;
  rdfs:comment "Human erythroleukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000846 .

obo:BTO_0004296 a rdfs:Class ;
  rdfs:label "umbilical vein endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001854 .

obo:BTO_0006528 a rdfs:Class ;
  rdfs:label "HMLER cell" ;
  rdfs:comment "Less malignant isogenic human triple-negative breast cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0006381 a rdfs:Class ;
  rdfs:label "bone lining cell" ;
  rdfs:comment "Bone lining cells cover inactive bone surfaces, particularly evident in the adult skeleton. BLC's are thinly extended over bone surfaces, have flat or slightly ovoid nuclei, connect to other BLC's via gap junctions, and send cell processes into surface canaliculi. BLC's can be induced to proliferate and differentiate into osteogenic cells and may represent a source of \"determined\" osteogenic precursors. BLC's and other cells of the endosteal tissues may be an integral part of the marrow stromal system and have important functions in hematopoiesis, perhaps by controlling the inductive microenvironment." .

obo:BTO_0004597 a rdfs:Class ;
  rdfs:label "nephrocyte" ;
  rdfs:comment "In most Arthropoda, one of the large phagocytic cells that accumulate waste products." ;
  rdfs:subClassOf obo:BTO_0001044 .

obo:BTO_0000533 a rdfs:Class ;
  rdfs:label "culture condition:dihydroxyacetone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001900 a rdfs:Class ;
  rdfs:label "growth phase culture" ;
  rdfs:comment "The characteristic periods in the growth of a bacterial culture, as indicated by the shape of a graph of viable cell number versus time." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0006232 a rdfs:Class ;
  rdfs:label "culture condition:(rac)-camphor-grown cell" ;
  rdfs:subClassOf obo:BTO_0006230 .

obo:BTO_0003978 a rdfs:Class ;
  rdfs:label "Brodmann area 29" ;
  rdfs:comment "A cytoarchitecturally defined portion of the retrosplenial region of the cerebral cortex. In the human it is a narrow band located in the isthmus of cingulate gyrus. Cytoarchitecturally it is bounded internally by the ectosplenial area 26 and externally by the agranular retrolimbic area 30." .

obo:BTO_0002780 a rdfs:Class ;
  rdfs:label "visceral muscle" ;
  rdfs:comment "Muscle fibers associated chiefly with the hollow viscera and largely of splanchnic mesodermal origin; except for the striated fibers in the wall of the heart, they are smooth muscle fibers bound together by reticular fibers." ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0001539 a rdfs:Class ;
  rdfs:label "parenchyma" ;
  rdfs:comment "The tissue characteristic of an organ, as distinguished from associated connective or supporting tissues." .

obo:BTO_0000814 a rdfs:Class ;
  rdfs:label "CAOV-3 cell" ;
  rdfs:comment "Human ovarian adenocarcinoma cell line, established from a 54-year-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0001167 a rdfs:Class ;
  rdfs:label "renal medulla" ;
  rdfs:comment "The inner section of the kidney." .

obo:BTO_0002465 a rdfs:Class ;
  rdfs:label "nucleus ventralis posterolateralis thalamus" ;
  rdfs:comment "The more lateral of the two posterior ventral nuclei of the thalamus; it is the terminus of the spinothalamic tract and the medial lemniscus and it projects to the postcentral gyrus." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0005662 a rdfs:Class ;
  rdfs:label "buccal muscle" ;
  rdfs:comment "The muscle of the buccal mass." .

obo:BTO_0002075 a rdfs:Class ;
  rdfs:label "mesenchymal epithelium" ;
  rdfs:comment "The epithelium which lines the subdural and subarachnoid spaces, the perilymphatic spaces in the inner ear, and the chamber of the eye." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003484 a rdfs:Class ;
  rdfs:label "SZ-95 cell" ;
  rdfs:comment "An immortalized human sebaceous gland cell line that shows the morphologic, phenotypic and functional characteristics of normal human sebocytes; established by transfection of human facial sebaceous gland cells with a PBR-322-based plasmid containing the coding region for the Simian virus-40 large T antigen." ;
  rdfs:subClassOf obo:BTO_0003483 .

obo:BTO_0005419 a rdfs:Class ;
  rdfs:label "sinusoidal trophoblast giant cell" ;
  rdfs:subClassOf obo:BTO_0005362 .

obo:BTO_0004231 a rdfs:Class ;
  rdfs:label "TCMK-1 cell" ;
  rdfs:comment "Mouse normal kidney cell line; SV-40 transformed." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0003408 a rdfs:Class ;
  rdfs:label "arcopallium" ;
  rdfs:comment "The arcopallium refers to regions of the avian brain which partially overlap regions homologous to the amygdala of mammals. These regions have formerly been referred to as archistriatum, and before this epistriatum or amygdaloid complex, and a recent change of nomenclature has divided the region into the arcopallium and posterior pallial amygdala." .

obo:BTO_0000468 a rdfs:Class ;
  rdfs:label "floret" ;
  rdfs:comment "1. A small or reduced flower, especially one of the grasses and composite plants, such as a daisy. 2. Any of the tight, branched clusters of flower buds that together form a head of cauliflower or broccoli." ;
  rdfs:subClassOf obo:BTO_0000469 .

obo:BTO_0000151 a rdfs:Class ;
  rdfs:label "extensor" ;
  rdfs:comment "A muscle that, upon contraction, tends to straighten a limb. The antagonist of a flexor muscle." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0001586 a rdfs:Class ;
  rdfs:label "lymphoid cell line" .

obo:BTO_0006207 a rdfs:Class ;
  rdfs:label "extravillous cytotrophoblast cell" ;
  rdfs:comment "Extravillous cytotrophoblast cells are the cells of the outermost layer of the fetal component of the human placenta. The extravillous cytotrophoblast cells located proximal to the villous stroma are proliferating cells." .

obo:BTO_0001806 a rdfs:Class ;
  rdfs:label "visceral mass" ;
  rdfs:comment "The visceral mass consists of the gonad, digestive gland, heart, and excretory organs." ;
  rdfs:subClassOf obo:BTO_0001262 , obo:BTO_0001491 .

obo:BTO_0001940 a rdfs:Class ;
  rdfs:label "cardiomyoblast" ;
  rdfs:subClassOf obo:BTO_0000222 .

obo:BTO_0002371 a rdfs:Class ;
  rdfs:label "macroplasmodium" ;
  rdfs:comment "The vegetative stage (macroplasmodium) of Physarum polycephalum is a large, single cell containing multiple dipoid nuclei that divide precisely at the same time." ;
  rdfs:subClassOf obo:BTO_0000757 .

obo:BTO_0005004 a rdfs:Class ;
  rdfs:label "UROtsa cell" ;
  rdfs:comment "The UROtsa cell line was isolated from a primary culture of normal human urothelium through immortalization with a construct containing the SV40 large T antigen." ;
  rdfs:subClassOf obo:BTO_0003907 .

obo:BTO_0000882 a rdfs:Class ;
  rdfs:label "culture condition:p-hydroxyphenylacetic acid-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003274 a rdfs:Class ;
  rdfs:label "saphenous vein endothelial cell line" .

obo:BTO_0002440 a rdfs:Class ;
  rdfs:label "CX-1 cell" ;
  rdfs:comment "Human colon adenocarcinoma cell line; established from the tumor tissue of a 44-year-old woman with well-differentiated colon adenocarcinoma in 1984; cell line is a subclone of cell line HT-29." .

obo:BTO_0001229 a rdfs:Class ;
  rdfs:label "IMR-90 cell" ;
  rdfs:comment "Normal lung fibroblast cell line from a human female. The human diploid fibroblast strain IMR-90 was derived by W.W. Nichols and associates from the lungs of a 16-week female fetus." ;
  rdfs:subClassOf obo:BTO_0000161 , obo:BTO_0001242 .

obo:BTO_0001261 a rdfs:Class ;
  rdfs:label "abdominal muscle" ;
  rdfs:comment "Muscles forming the wall of the abdomen including rectus abdominis, external and internal oblique muscles, transversus abdominis, and quadratus abdominis." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0002966 a rdfs:Class ;
  rdfs:label "SK-MEL-21 cell" ;
  rdfs:comment "Human cell line established from a metastatic melanoma." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0002252 a rdfs:Class ;
  rdfs:label "subthalamic nucleus" ;
  rdfs:comment "A biconvex mass of gray matter on the medial side of the junction of the internal capsule and the crus cerebri; its chief connections are with the globus pallidus." .

obo:BTO_0001632 a rdfs:Class ;
  rdfs:label "lens cortex" ;
  rdfs:comment "The portion of the crystalline lens surrounding the nucleus and bound anteriorly by the epithelium and posteriorly by the capsule. It contains lens fibers and amorphous, intercellular substance." .

obo:BTO_0004305 a rdfs:Class ;
  rdfs:label "hairy root" ;
  rdfs:comment "A phase of crown gall (especially in apples) during which there is abnormal development of fine fibrous roots." ;
  rdfs:subClassOf obo:BTO_0000677 .

obo:BTO_0003401 a rdfs:Class ;
  rdfs:label "subpallium" ;
  rdfs:comment "The subpallium is the ventral telencephalon of a birds brain." .

obo:BTO_0000147 a rdfs:Class ;
  rdfs:label "microgametophyte" ;
  rdfs:comment "A plant body or cell lineage, formed by vegetative growth of the microspore, that produces the male gametes of a heterosporous plant." ;
  rdfs:subClassOf obo:BTO_0000495 .

obo:BTO_0003337 a rdfs:Class ;
  rdfs:label "pulmonary artery smooth muscle cell line" .

obo:BTO_0005723 a rdfs:Class ;
  rdfs:label "cerebral organ" ;
  rdfs:comment "In Nemertina one of paired ciliated tubes associated with the dorsal ganglion and opening to the exterior, that function as chemical sense organs. In Sipuncula the anterior margin of the cerebral ganglion made up of high columnar epithelium, probably not sensory in function." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0004837 a rdfs:Class ;
  rdfs:label "MRC5-SV cell" ;
  rdfs:comment "This cell line is derived by simian virus 40 transformation of MRC5 fibroblasts." .

obo:BTO_0003505 a rdfs:Class ;
  rdfs:label "T-cell chronic lymphocytic leukemia cell" ;
  rdfs:comment "2-5% of all chronic lymphoproliferative disorders in the West, and 5-6% in the Chinese population. Large granular lymphocytes (LGLs) with the nucleus of a small lymphocyte but abundant cytoplasm and fine or coarse azurophilic granules; ultrastructural examination may reveal characteristic parallel tubular arrays; the LGLs are often >2x109/L." ;
  rdfs:subClassOf obo:BTO_0001546 .

obo:BTO_0002336 a rdfs:Class ;
  rdfs:label "culture condition:arabitol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004894 a rdfs:Class ;
  rdfs:label "253J-BV cell" ;
  rdfs:comment "Highly metastatic variant from human transitional cell carcinoma." .

obo:BTO_0004466 a rdfs:Class ;
  rdfs:label "LAMA-87 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in blast crisis, derivative of LAMA-84; subclone LAMA-87 was obtained after subcutaneous transplantation of LAMA-84 cells into estrone-treated nude mice." .

obo:BTO_0002955 a rdfs:Class ;
  rdfs:label "Mel592 cell" ;
  rdfs:comment "Metastatic human melanoma, obtained from patients with no history of chemotherapy or immunotherapy by surgical removal." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005242 a rdfs:Class ;
  rdfs:label "MLE-15 cell" ;
  rdfs:comment "Murine lung epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003213 .

obo:BTO_0001406 a rdfs:Class ;
  rdfs:label "HT-144 cell" ;
  rdfs:comment "Homo sapiens (human), morphology: fibroblast, tissue: metastatic site: subcutaneous tissue malignant melanoma, established from a 29-year-old caucasian men." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006007 a rdfs:Class ;
  rdfs:label "LB-24-MEL cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003083 a rdfs:Class ;
  rdfs:label "uterine wall" .

obo:BTO_0003596 a rdfs:Class ;
  rdfs:label "uterine sarcoma cell" ;
  rdfs:comment "A rare type of uterine cancer that forms in muscle or other tissues of the uterus. It usually occurs after menopause. The two main types are leiomyosarcoma (cancer that begins in smooth muscle cells) and endometrial stromal sarcoma (cancer that begins in connective tissue cells)." ;
  rdfs:subClassOf obo:BTO_0000257 , obo:BTO_0001207 .

obo:BTO_0000481 a rdfs:Class ;
  rdfs:label "culture condition:formate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001191 a rdfs:Class ;
  rdfs:label "root tip" ;
  rdfs:comment "The root tip is the tip of the root and contains the root cap and the apical meristem -the actively growing region." .

obo:BTO_0003938 a rdfs:Class ;
  rdfs:label "leaf disc" ;
  rdfs:comment "The whole surface of a leaf." .

obo:BTO_0002217 a rdfs:Class ;
  rdfs:label "culture supernatant" ;
  rdfs:comment "The clear fluid above a sediment or precipitate of a cell culture." .

obo:BTO_0002971 a rdfs:Class ;
  rdfs:label "KJ29 cell" ;
  rdfs:comment "Non papillary human renal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0003369 a rdfs:Class ;
  rdfs:label "face" ;
  rdfs:comment "That part of the head, especially of man, in which the eyes, cheeks, nose, and mouth are situated." .

obo:BTO_0004134 a rdfs:Class ;
  rdfs:label "IOSE-2Ap2 cell" ;
  rdfs:comment "Immortalized not tumorigenic human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004130 .

obo:BTO_0002476 a rdfs:Class ;
  rdfs:label "paraventricular nucleus of hypothalamus" ;
  rdfs:comment "A sharply defined band of cells in the wall of the third ventricle in the anterior hypothalamic region; many of its cells are neurosecretory in function, secreting oxytocin, which is carried to the neurohypophysis (posterior pituitary) by the fibers of the paraventriculohypophysial tract." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0001072 a rdfs:Class ;
  rdfs:label "trigeminal nerve" ;
  rdfs:comment "Either of the fifth pair of cranial nerves, having sensory and motor functions in the face, teeth, mouth, and nasal cavity." ;
  rdfs:subClassOf obo:BTO_0001104 .

obo:BTO_0006061 a rdfs:Class ;
  rdfs:label "WA-07 cell" ;
  rdfs:comment "Human embryonic stem cell line from a male; established from human blastocysts." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0000107 a rdfs:Class ;
  rdfs:label "B95-8 cell" ;
  rdfs:comment "Marmoset monkey lymphocytes, established from peripheral blood lymphocytes of a marmoset monkey (saguinus oedipus); cells were described to release high titers of Epstein-Barr virus (EBV) providing a source for transformation of B cells and establishment of continuous cell lines; this cell line has been assigned by the ZKBS (German Central Commission for Biological Safety) to risk group 2." ;
  rdfs:subClassOf obo:BTO_0001522 .

obo:BTO_0003545 a rdfs:Class ;
  rdfs:label "KU-1 cell" ;
  rdfs:comment "Human bladder carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0001452 a rdfs:Class ;
  rdfs:label "nasal nerve" ;
  rdfs:comment "A branch of the ophthalmic nerve distributed in part to the ciliary ganglion and in part to the mucous membrane and skin of the nose." .

obo:BTO_0005850 a rdfs:Class ;
  rdfs:label "mucinous ovarian adenocarcinoma cell" ;
  rdfs:comment "Mucinous adenocarcinoma of ovary is a rapidly-growing epithelial tumor that is usually present as a single solid mass within an ovary. Rarely though, it can occur as multiple masses within a single ovary, or may affect both the ovaries as well." ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0004430 a rdfs:Class ;
  rdfs:label "HBL-52 cell" ;
  rdfs:comment "The cell line was originally taken from a transitional meningioma grade I localized at the optic canal." ;
  rdfs:subClassOf obo:BTO_0004398 .

obo:BTO_0004557 a rdfs:Class ;
  rdfs:label "submandibular gland duct epithelium" .

obo:BTO_0001846 a rdfs:Class ;
  rdfs:label "bronchial mucosa" ;
  rdfs:comment "The mucous lining of the bronchial tubes." ;
  rdfs:subClassOf obo:BTO_0000973 .

obo:BTO_0000291 a rdfs:Class ;
  rdfs:label "corpus allatum" ;
  rdfs:comment "One of a pair of separate or fused bodies in many insects that are sometimes closely associated with the corpora cardiaca and that secrete hormones (as juvenile hormone)." ;
  rdfs:subClassOf obo:BTO_0001803 .

obo:BTO_0005099 a rdfs:Class ;
  rdfs:label "follicular stem cell" ;
  rdfs:comment "The follicular stem cells can give rise to both the hair follicle and to the epidermis." ;
  rdfs:subClassOf obo:BTO_0005097 .

obo:BTO_0000748 a rdfs:Class ;
  rdfs:label "P-388 cell" ;
  rdfs:comment "An experimental lymphocytic leukemia originally induced in DBA/2 mice by painting with methylcholanthrene." ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0006370 a rdfs:Class ;
  rdfs:label "opisthonephros" ;
  rdfs:comment "The opisthonephros is the functional adult kidney in lampreys (cyclostomes), most fishes, and amphibians. It is formed from the extended mesonephros along with tubules from the posterior nephric ridge. The functional embryonic kidney in anamniotes is the pronephros." ;
  rdfs:subClassOf obo:BTO_0000671 .

obo:BTO_0001979 a rdfs:Class ;
  rdfs:label "mucous gland" ;
  rdfs:comment "A gland that secretes a slimy, chemically inert material." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0006319 a rdfs:Class ;
  rdfs:label "culture condition:wheat straw-grown cell" ;
  rdfs:comment "Is a substrate for basidiomycetes." ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003144 a rdfs:Class ;
  rdfs:label "neuron-oligodendrocyte coculture" ;
  rdfs:subClassOf obo:BTO_0003143 .

obo:BTO_0006078 a rdfs:Class ;
  rdfs:label "pluripotent stem cell" .

obo:BTO_0000893 a rdfs:Class ;
  rdfs:label "mycorrhiza" ;
  rdfs:comment "The symbiotic association of the mycelium of a fungus with the roots of a seed plant." .

obo:BTO_0000700 a rdfs:Class ;
  rdfs:label "culture condition:L-threonine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004824 a rdfs:Class ;
  rdfs:label "NCI-H1975 cell" ;
  rdfs:comment "Human non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0003064 a rdfs:Class ;
  rdfs:label "Mueller cell" ;
  rdfs:comment "Mueller cells are astrocyte-like radial glial cells that extend vertically throughout the retina, although their nuclei are usually in the middle of the inner nuclear layer." .

obo:BTO_0006010 a rdfs:Class ;
  rdfs:label "5-8F cell" ;
  rdfs:comment "High tumorigenic and metastatic subline of SUNE-1 cell line." .

obo:BTO_0003271 a rdfs:Class ;
  rdfs:label "great saphenous vein" ;
  rdfs:comment "The great saphenous vein goes from the foot all the way up to the saphenous opening, an oval aperture in the broad fascia of the thigh, a fibrous membrane through which the vein passes." ;
  rdfs:subClassOf obo:BTO_0001808 .

obo:BTO_0000414 a rdfs:Class ;
  rdfs:label "epithelial cell" ;
  rdfs:comment "Cell that cover the surface of the body and line its cavities." .

obo:BTO_0001832 a rdfs:Class ;
  rdfs:label "sympathetic nervous system" ;
  rdfs:comment "One of the two divisions of the vertebrate autonomic nervous system (the other being the parasympathetic nervous system). The sympathetic preganglionic neurons have their cell bodies in the thoracic and lumbar regions of the spinal cord, and connect to the paravertebral chain of sympathetic ganglia. Innervate heart and blood vessels, sweat glands, viscera, and the adrenal medulla. Most sympathetic neurons, but not all, use noradrenaline as a post-ganglionic neurotransmitter." ;
  rdfs:subClassOf obo:BTO_0001028 .

obo:BTO_0002436 a rdfs:Class ;
  rdfs:label "myenteric plexus" ;
  rdfs:comment "That part of the enteric plexus within the tunica muscularis." .

obo:BTO_0006474 a rdfs:Class ;
  rdfs:label "rhizoid" ;
  rdfs:comment "A slender rootlike filament that grows from an alga, a fungus, or the gametophyte of a moss, liverwort, or fern, used for attachment and nourishment." ;
  rdfs:subClassOf obo:BTO_0001188 .

obo:BTO_0000447 a rdfs:Class ;
  rdfs:label "feather" ;
  rdfs:comment "Any of the light horny epidermal outgrowths that form the external covering of the body of birds and that consist of a shaft bearing on each side a series of barbs which bear barbules which in turn bear barbicels commonly ending in hooked hamuli and interlocking with the barbules of an adjacent barb to link the barbs into a continuous vane." .

obo:BTO_0005457 a rdfs:Class ;
  rdfs:label "foreskin melanocyte cell line" ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0006395 a rdfs:Class ;
  rdfs:label "HCC-1806 cell" ;
  rdfs:comment "Mammary gland cancer cell line, from a TNM stage IIB, grade 2, primary acantholytic squamous cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0003239 a rdfs:Class ;
  rdfs:label "NCI-H838 cell" ;
  rdfs:comment "Human lung adenocarcinoma; non-small cell lung cancer cell line; tumor stage 3B; derived from metastatic site: lymph node." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002553 .

obo:BTO_0006146 a rdfs:Class ;
  rdfs:label "culture condition:corn steep liquor-grown cell" ;
  rdfs:comment "Corn steep liquor is a by-product of corn wet-milling.  A viscous concentrate of corn solubles which contains amino acids, vitamins and minerals, it is an important constituent of some growth media." ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005976 a rdfs:Class ;
  rdfs:label "NCI-H1963 cell" ;
  rdfs:comment "Human small cell lung cancer cell line; established in June 1988 from a stage L carcinoma of a 56 years old black male." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005241 a rdfs:Class ;
  rdfs:label "MSK-Leuk1 cell" ;
  rdfs:comment "Oral keratinocyte cell line spontaneously derived from an oral leukoplakia lesion that exhibits an immortalized but non-tumorigenic phenotype." ;
  rdfs:subClassOf obo:BTO_0000375 .

obo:BTO_0004025 a rdfs:Class ;
  rdfs:label "claw muscle" ;
  rdfs:comment "Some invertebrate muscles, such as in crab claws, have much longer sarcomeres than vertebrates, resulting in many more sites for actin and myosin to bind and thus much greater force per square centimeter." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0000753 a rdfs:Class ;
  rdfs:label "lymphoid tissue" ;
  rdfs:comment "Tissue that is particularly rich in lymphocytes (and accessory cells such as macrophages and reticular cells), particularly the lymph nodes, spleen, thymus, Peyer's patches, pharyngeal tonsils, adenoids, and (in birds) the Bursa of Fabricius." .

obo:BTO_0001224 a rdfs:Class ;
  rdfs:label "second instar larva" ;
  rdfs:comment "Instar: a stage in the life of an arthropod (as an insect) between two successive molts." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0000010 a rdfs:Class ;
  rdfs:label "culture condition:3-methylcrotonoyl-CoA-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005522 a rdfs:Class ;
  rdfs:label "plant epidermal cell" ;
  rdfs:comment "The plant epidermis cell is a group of cells that covers plants leaves, flowers, roots and stems. The cells of the epidermis are structurally and functionally variable. Most plants have an epidermis that is a single cell layer thick. Some plants like Ficus elastica and Peperomia, which have periclinal cellular division within the protoderm of the leaves, have an epidermis with multiple cell layers. Epidermal cells are tightly linked to each other and provide mechanical strength and protection to the plant." .

obo:BTO_0006384 a rdfs:Class ;
  rdfs:label "synovial sarcoma cell line" ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0000791 a rdfs:Class ;
  rdfs:label "BW-5147 cell" ;
  rdfs:comment "Mouse AKR/J thymic lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0001377 .

obo:BTO_0000951 a rdfs:Class ;
  rdfs:label "NRK cell" ;
  rdfs:comment "Normal kidney cell line from rattus norvegicus." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0002191 a rdfs:Class ;
  rdfs:label "fibre tract" ;
  rdfs:comment "A bundle of nerve fibers (axons) having a common origin, termination, and function." .

obo:BTO_0001279 a rdfs:Class ;
  rdfs:label "spinal cord" ;
  rdfs:comment "The cord of nervous tissue that extends from the brain lengthwise along the back in the vertebral canal, gives off the pairs of spinal nerves, carries impulses to and from the brain, and serves as a center for initiating and coordinating many reflex acts." .

obo:BTO_0004310 a rdfs:Class ;
  rdfs:label "Cl-66M2 cell" ;
  rdfs:comment "Mouse breast adenocarcinoma cell line." .

obo:BTO_0005177 a rdfs:Class ;
  rdfs:label "BCWM.1 cell" ;
  rdfs:comment "Derived from a long-term culture of CD19(+) selected bone marrow lymphoplasmacytic cells isolated from an untreated patient with Waldenström's macroglobulinemia." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0006427 a rdfs:Class ;
  rdfs:label "BCIRL-HV-AM1 cell" ;
  rdfs:comment "Ovary cell line, derived from pupal ovaries of Heliothis virescens." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0005289 a rdfs:Class ;
  rdfs:label "Col-2 cell" ;
  rdfs:comment "Cultured human colon cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0006050 a rdfs:Class ;
  rdfs:label "PH5CH-7 cell" ;
  rdfs:comment "Clone of PH5CH cell displaying more efficient hepatitis C virus replication." .

obo:BTO_0001022 a rdfs:Class ;
  rdfs:label "periosteum" ;
  rdfs:comment "The dense fibrous membrane covering the surface of bones except at the joints and serving as an attachment for muscles and tendons." .

obo:BTO_0003966 a rdfs:Class ;
  rdfs:label "posterior olfactory lobule" .

obo:BTO_0003808 a rdfs:Class ;
  rdfs:label "FHC cell" ;
  rdfs:comment "Human normal colon cell line from a 13 weeks gestation." ;
  rdfs:subClassOf obo:BTO_0000188 .

obo:BTO_0005549 a rdfs:Class ;
  rdfs:label "NIH-3T3-ras cell" ;
  rdfs:comment "Murine embryonal fibroblast cell line, transfected with the H-ras-oncogene." .

obo:BTO_0000050 a rdfs:Class ;
  rdfs:label "zona fasciculata" ;
  rdfs:comment "The middle of the three layers of the adrenal cortex that consists of radially arranged columnar epithelial cells." .

obo:BTO_0000780 a rdfs:Class ;
  rdfs:label "alveolar cell type I" ;
  rdfs:comment "The flattened cells of the alveolar epithelium, distinguished by their greatly attenuated cytoplasm and paucity of organelles." ;
  rdfs:subClassOf obo:BTO_0000395 .

obo:BTO_0005238 a rdfs:Class ;
  rdfs:label "T-REx 293 cell" ;
  rdfs:comment "Human embryonic kidney cell line stably expressing the tetracycline (Tet) repressor." .

obo:BTO_0003054 a rdfs:Class ;
  rdfs:label "OVCA-8 cell" ;
  rdfs:comment "Ovarian human cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0003848 a rdfs:Class ;
  rdfs:label "adenoid cystic carcinoma cell" ;
  rdfs:comment "A type of cancer that most often develops in the salivary glands of the head and neck. It may arise in other sites such as the skin, lacrimal gland, trachea, breast, cervix and prostate." ;
  rdfs:subClassOf obo:BTO_0002773 .

obo:BTO_0005209 a rdfs:Class ;
  rdfs:label "culture condition:isophthalate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002605 a rdfs:Class ;
  rdfs:label "TE-671 cell" ;
  rdfs:comment "Human rhabdomyosarcoma cell line. In the original publication and in the ATCC catalogue this cell line is described as medulloblastoma; recent studies and the characterization carried out at the DSMZ indicated that TE-671 are muscle cells, most likely identical to the rhabdomyosarcoma cell line RD (also known as TE32 or 130T)." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0000661 a rdfs:Class ;
  rdfs:label "JURKAT cell" ;
  rdfs:comment "Human T cell leukemia, established from the peripheral blood of a 14-year-old boy with acute lymphoblastic leukemia (ALL) at first relapse in 1976; often this cell line is called JM (JURKAT and JM are derived from the same patient and are sister clones), occasionally JM may be a subclone with somewhat divergent features." ;
  rdfs:subClassOf obo:BTO_0002144 , obo:BTO_0002504 .

obo:BTO_0005357 a rdfs:Class ;
  rdfs:label "Ingles cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0003133 a rdfs:Class ;
  rdfs:label "culture condition:acetylene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005882 a rdfs:Class ;
  rdfs:label "scolopidium" ;
  rdfs:comment "Complex sensillum in insects consisting of a bundle of sensory cells whose endings are separated from the body by one or more accessory cells, that are receptive to mechanical stimuli." ;
  rdfs:subClassOf obo:BTO_0001237 .

obo:BTO_0004209 a rdfs:Class ;
  rdfs:label "seed vessel" ;
  rdfs:comment "The ripened and variously modified walls of a plant ovary." .

obo:BTO_0003585 a rdfs:Class ;
  rdfs:label "SR cell" ;
  rdfs:comment "Human large cell immunoblastic lymphoma cell line, derived from a pleural effusion of a 11 years old caucasian boy." ;
  rdfs:subClassOf obo:BTO_0002904 .

obo:BTO_0001508 a rdfs:Class ;
  rdfs:label "morula" ;
  rdfs:comment "A globular solid mass of blastomeres formed by cleavage of a zygote that typically precedes the blastula." ;
  rdfs:subClassOf obo:BTO_0001473 .

obo:BTO_0003310 a rdfs:Class ;
  rdfs:label "KMCH cell" ;
  rdfs:comment "Human cholangiocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0002151 a rdfs:Class ;
  rdfs:label "gill raker sieve" ;
  rdfs:comment "The set of gill rakers on the gill arches acting as a filter or sieve." .

obo:BTO_0005962 a rdfs:Class ;
  rdfs:label "GM-95 cell" ;
  rdfs:comment "A mutant cell line derived from mouse melanoma MEB-4 cells, is deficient in glycosphingolipids due to the lack of ceramide glucosyltransferase-1 activity." .

obo:BTO_0005044 a rdfs:Class ;
  rdfs:label "LNCaP-17 cell" ;
  rdfs:comment "Mouse orthotopic prostate cancer model with low hepsin-expressing cells." .

obo:BTO_0006463 a rdfs:Class ;
  rdfs:label "SU-DHL-2 cell" ;
  rdfs:comment "Large cell lymphoma cell line, established from the peritoneal effusion of a 72-year-old woman with  large cell lymphoma, originally described as \"diffuse histiocytic lymphoma\" in 1975." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0002724 a rdfs:Class ;
  rdfs:label "CRO-AP/2 cell" ;
  rdfs:comment "PEL cell line carrying the Epstein-Barr virus (EBV) infection." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0001207 a rdfs:Class ;
  rdfs:label "sarcoma cell" ;
  rdfs:comment "A malignant neoplasm cell arising in tissue of mesodermal origin, as connective tissue, bone, cartilage, or striated muscle." ;
  rdfs:subClassOf obo:BTO_0000372 , obo:BTO_0001801 .

obo:BTO_0000639 a rdfs:Class ;
  rdfs:label "intersegmental muscle" ;
  rdfs:comment "The short intersegmental muscle is located between the prothorax and the mesothorax." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0004893 a rdfs:Class ;
  rdfs:label "253J laval cell" ;
  rdfs:comment "Human bladder cancer cell line." .

obo:BTO_0002512 a rdfs:Class ;
  rdfs:label "leaflet" ;
  rdfs:comment "One of the segments of a compound leaf or a small leaf or leaflike part." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003665 a rdfs:Class ;
  rdfs:label "nucleus recessus preopticus" ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0005728 a rdfs:Class ;
  rdfs:label "gynophore" ;
  rdfs:comment "A gynophore is the stalk of certain flowers which supports the gynoecium elevating it above the branching points of other floral parts." .

obo:BTO_0004449 a rdfs:Class ;
  rdfs:label "LN-443 cell" ;
  rdfs:comment "Human glioblastoma cell line." .

obo:BTO_0006250 a rdfs:Class ;
  rdfs:label "epibranchial ganglion" ;
  rdfs:comment "Cranial ganglion which develops from an epibranchial placode." ;
  rdfs:subClassOf obo:BTO_0000106 .

obo:BTO_0005753 a rdfs:Class ;
  rdfs:label "CHO-A7 cell" ;
  rdfs:comment "Arginase-deficient CHO cell variant." .

obo:BTO_0004517 a rdfs:Class ;
  rdfs:label "SF-4433 cell" ;
  rdfs:comment "Human meningioma cell line." ;
  rdfs:subClassOf obo:BTO_0004398 .

obo:BTO_0000984 a rdfs:Class ;
  rdfs:label "P-388D1 cell" ;
  rdfs:comment "Lymphoma cell line, established from mus musculus DBA/2. Tumors develop within 21 days at 100% frequency in nude mice inoculated subcutaneously with 10(7) cells." .

obo:BTO_0005420 a rdfs:Class ;
  rdfs:label "canal trophoblast giant cell" ;
  rdfs:subClassOf obo:BTO_0005362 .

obo:BTO_0000743 a rdfs:Class ;
  rdfs:label "pre-B-lymphocyte cell line" .

obo:BTO_0002212 a rdfs:Class ;
  rdfs:label "cervical squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001967 , obo:BTO_0002024 .

obo:BTO_0004285 a rdfs:Class ;
  rdfs:label "oviductal ampulla" ;
  rdfs:comment "The thin-walled, almost muscle-free, midregion of the uterine tube; its mucosa is greatly plicated." .

obo:BTO_0001449 a rdfs:Class ;
  rdfs:label "gall bladder epithelium" ;
  rdfs:subClassOf obo:BTO_0001513 .

obo:BTO_0003360 a rdfs:Class ;
  rdfs:label "extraembryonic tissue" ;
  rdfs:comment "The structure outside the embryonic body; e.g., those membranes involved with the embryos protection and nutrition which are discarded at birth without being incorporated in its body." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0003499 a rdfs:Class ;
  rdfs:label "OVTOKO cell" ;
  rdfs:comment "Human ovarian carcinoma cell line from clear cell adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0006415 .

obo:BTO_0002833 a rdfs:Class ;
  rdfs:label "NB-1643 cell" ;
  rdfs:comment "Human neuroblastoma cell line was established from a previously untreated patient." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0004957 a rdfs:Class ;
  rdfs:label "hydathode" ;
  rdfs:comment "A specialized pore on the leaves of higher plants that functions in the exudation of water." .

obo:BTO_0004790 a rdfs:Class ;
  rdfs:label "hTERT-RPE1 cell" ;
  rdfs:comment "The hTERT-immortalized retinal pigment epithelial cell line, hTERT RPE-1, was derived by transfecting the RPE-340 cell line with the pGRN145 hTERT-expressing plasmid." ;
  rdfs:subClassOf obo:BTO_0002334 .

obo:BTO_0002912 a rdfs:Class ;
  rdfs:label "neuroepithelioma cell line" ;
  rdfs:subClassOf obo:BTO_0002913 .

obo:BTO_0005239 a rdfs:Class ;
  rdfs:label "renal tubule epithelium" .

obo:BTO_0004477 a rdfs:Class ;
  rdfs:label "medial temporal lobe" ;
  rdfs:comment "The medial temporal lobes are near the Sagittal plane that divides left and right cerebral hemispheres and are thought to be involved in episodic, declarative memory." .

obo:BTO_0002520 a rdfs:Class ;
  rdfs:label "FL-318 cell" ;
  rdfs:comment "Cell line established from effusion cells of two Japanese patients manifesting the transformed histology of follicular lymphoma." ;
  rdfs:subClassOf obo:BTO_0002517 .

obo:BTO_0003145 a rdfs:Class ;
  rdfs:label "vestibulum vaginae" ;
  rdfs:comment "The space posterior to the glans clitoridis and between the labia minora, containing the openings of the vagina, urethra, and ducts of the greater vestibular glands." .

obo:BTO_0003977 a rdfs:Class ;
  rdfs:label "retrosplenial region" ;
  rdfs:comment "The retrosplenial region is a brain area and part of the cingulate cortex. It is defined by Brodmann area 29 and the Brodmann area 26." .

obo:BTO_0003837 a rdfs:Class ;
  rdfs:label "nucleus emboliformis" ;
  rdfs:subClassOf obo:BTO_0003835 .

obo:BTO_0006113 a rdfs:Class ;
  rdfs:label "megaspore" ;
  rdfs:comment "A spore in heterosporous plants giving rise to female gametophytes and usually larger than a microspore." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0002116 a rdfs:Class ;
  rdfs:label "tela submucosa tubae uterinae" ;
  rdfs:comment "The submucous layer of the wall of the uterine tube." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0003994 a rdfs:Class ;
  rdfs:label "hoof" ;
  rdfs:comment "A hoofed foot especially of a horse." ;
  rdfs:subClassOf obo:BTO_0000476 .

obo:BTO_0004878 a rdfs:Class ;
  rdfs:label "enteric muscle" ;
  rdfs:comment "Muscle cells of the posterior gut and rectum. There are four specialized muscle cells in this region that operate in the defecation cycle; the L/R stomatointestinal muscles (also called the intestinal muscles) , the anal sphincter muscle (also called the anal dilator or rectal muscle) and the anal depressor muscle (also called the depressor ani muscle). These three sets of muscles are jointly called enteric muscles and each send an arm to the DVB neuron along dorsal surface of the preanal ganglion." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0004350 a rdfs:Class ;
  rdfs:label "lateral dorsal nucleus" ;
  rdfs:comment "A narrow strip of cell groups on the dorsomedial surface of the thalamus. It includes the lateral dorsal nucleus, lateral posterior nucleus, and the PULVINAR." .

obo:BTO_0001401 a rdfs:Class ;
  rdfs:label "tuber cortex" .

obo:BTO_0000718 a rdfs:Class ;
  rdfs:label "leaf epidermis" ;
  rdfs:comment "The blade consists of an upper and a lower layer of closely fitted epidermal cells, including specialized paired guard cells that control the size of tiny pores, or stomata, for gaseous exchange and the release of water vapor (see transpiration). The upper epidermis is usually coated with a waterproof cuticle and contains fewer stomata than the underside, if any at all." .

obo:BTO_0001336 a rdfs:Class ;
  rdfs:label "synovial fibroblast" ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0004946 a rdfs:Class ;
  rdfs:label "UTP-L5 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0004124 a rdfs:Class ;
  rdfs:label "HT-1197 cell" ;
  rdfs:comment "Human urinary bladder carcinoma cell line, established from a 44 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0002881 a rdfs:Class ;
  rdfs:label "neural stem cell" ;
  rdfs:comment "Neural stem cells are the multipotent stem cells that generate nerve cells. However, since the early 1990s, neural stem cells have been isolated from the adult brain as well as fetal brain tissues. Stem cells in the adult brain are found in the areas called the subventricular zone and the ventricle zone. Another location of brain stem cells occurs in the hippocampus, a special structure of the cerebral cortex related to memory function. Stem cells isolated from these areas are able to divide and to give rise to nerve cells and neuron-supporting cell types in culture." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0005739 a rdfs:Class ;
  rdfs:label "transfer cell" ;
  rdfs:comment "A type of plant cell specialized for the short-distance high-volume transport of materials. Transfer cells have numerous knobs and ridges on the inner surface of the primary cell wall. These greatly increase the surface area of the plasma membrane, which follows the contours of the protuberances. The expanded plasma membrane can accommodate a large number of transport proteins, which are responsible for transporting materials in or out of the cell. Transfer cells are found mainly in salt-secreting glands and in regions where photosynthate (sugar) is loaded or unloaded into sieve elements of phloem." .

obo:BTO_0003202 a rdfs:Class ;
  rdfs:label "SK-RC-99 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0000313 a rdfs:Class ;
  rdfs:label "hypodermis" ;
  rdfs:comment "The outer cellular layer of the body of invertebrates which secretes the cuticular exoskeleton." ;
  rdfs:subClassOf obo:BTO_0000634 .

obo:BTO_0005987 a rdfs:Class ;
  rdfs:label "hepatoma HLE cell" ;
  rdfs:comment "Human hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0003241 a rdfs:Class ;
  rdfs:label "NCI-H2087 cell" ;
  rdfs:comment "Human lung adenocarcinoma; non-small cell lung cancer cell line; tumor stage 1; derived from metastatic site: lymph node." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002553 .

obo:BTO_0000567 a rdfs:Class ;
  rdfs:label "HeLa cell" ;
  rdfs:comment "Human cervix carcinoma established from the epitheloid cervix carcinoma of a 31-year-old black woman in 1951. Later diagnosis changed to adenocarcinoma, first aneuploid, continuously cultured human cell line." ;
  rdfs:subClassOf obo:BTO_0005590 .

obo:BTO_0001000 a rdfs:Class ;
  rdfs:label "acute megakaryocytic leukemia cell line" ;
  rdfs:comment "Acute megakaryocytic leukemia is a rare subtype of acute myeloid leukemia evolving from primitive megakaryoblasts." ;
  rdfs:subClassOf obo:BTO_0000737 , obo:BTO_0001549 .

obo:BTO_0000812 a rdfs:Class ;
  rdfs:label "OVCAR-3 cell" ;
  rdfs:comment "Human caucasian ovary adenocarcinoma cell line; established from a 60 years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0003321 a rdfs:Class ;
  rdfs:label "HCE cell" ;
  rdfs:comment "Human corneal epithelial cell line." .

obo:BTO_0004938 a rdfs:Class ;
  rdfs:label "KOCL-44 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0001232 a rdfs:Class ;
  rdfs:label "seminal plasma" ;
  rdfs:comment "The fluid portion of the semen, in which the spermatozoa are suspended." .

obo:BTO_0003707 a rdfs:Class ;
  rdfs:label "TK-6 cell" ;
  rdfs:comment "Human lymphoblastoid cell line." .

obo:BTO_0002576 a rdfs:Class ;
  rdfs:label "UMR-106 cell" ;
  rdfs:comment "The UMR-106 cell line is a clonal derivative of a transplantable rat osteosarcoma that had been induced by injection of radiophosphorous (32P)." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0004849 a rdfs:Class ;
  rdfs:label "pharyngeal gland" ;
  rdfs:comment "Racemose mucous glands beneath the mucous membrane of the pharynx." .

obo:BTO_0003075 a rdfs:Class ;
  rdfs:label "WM-115 cell" ;
  rdfs:comment "Human melanoma cell line. The WM-115 cell line was derived from the primary tumor of a 58 years old female." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001702 a rdfs:Class ;
  rdfs:label "left atrium" ;
  rdfs:comment "The left atrium receives oxygenated blood back from the lungs and pumps it down into the left ventricle for relatively high-pressure delivery to the body." .

obo:BTO_0006032 a rdfs:Class ;
  rdfs:label "JVM-3 cell" ;
  rdfs:comment "Human chronic B cell leukemia cell line; established from the peripheral blood of a 73-year-old man with B-prolymphocytic leukemia at diagnosis." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0005372 a rdfs:Class ;
  rdfs:label "SK-N-MC-IXC cell" ;
  rdfs:comment "This is a twice cloned subline of the neuroepithelioma cell line SK-N-MC which was established in September of 1971 from a metastatic tumor mass." .

obo:BTO_0005404 a rdfs:Class ;
  rdfs:label "labyrinthine zone" ;
  rdfs:comment "The murine placenta consists of two main fetally derived compartments: the labyrinthine zone and the junctional zone." .

obo:BTO_0003811 a rdfs:Class ;
  rdfs:label "interneuron" ;
  rdfs:comment "A neuron that conveys impulses from one neuron to another." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0005785 a rdfs:Class ;
  rdfs:label "embryonic syncytium" ;
  rdfs:comment "Another correct and well-established use of the word syncytium is found in animal embryology to refer to the coenocytic blastoderm embryos of invertebrates, such as Drosophila melanogaster." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0002680 a rdfs:Class ;
  rdfs:label "left testicular vein" ;
  rdfs:comment "A vein that drains the left pampiniform plexus and empties into the left renal vein." ;
  rdfs:subClassOf obo:BTO_0002678 .

obo:BTO_0004108 a rdfs:Class ;
  rdfs:label "G cell" ;
  rdfs:comment "Endocrine cells found in the pyloric gland mucosa (antral mucosa) of the stomach and responsible for the secretion of gastrin." .

obo:BTO_0004035 a rdfs:Class ;
  rdfs:label "222 cell" ;
  rdfs:comment "Human gynecologic ovarian cancer cell line." .

obo:BTO_0004351 a rdfs:Class ;
  rdfs:label "lateral posterior nucleus" ;
  rdfs:comment "A narrow strip of cell groups on the dorsomedial surface of the thalamus. It includes the lateral dorsal nucleus, lateral posterior nucleus, and the PULVINAR." .

obo:BTO_0000062 a rdfs:Class ;
  rdfs:label "amastigote" ;
  rdfs:comment "Any of the bodies representing the morphologic (leishmanial) stage in the life cycle of all trypanosomatid protozoa resembling the typical adult form of members of the genus Leishmania, in which the oval or round cell has a nucleus, kinetoplast, and basal body but lacks a free-flowing flagellum, the flagellum being either very short or entirely absent." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0006247 a rdfs:Class ;
  rdfs:label "culture condition:CD11c+ cell" ;
  rdfs:comment "CD11c is an integrin alpha X chain protein found at high levels on most human dendritic cells, but also on monocytes, macrophages, neutrophils, and some B cells that induces cellular activation and helps trigger neutrophil respiratory burst. It is expressed in hairy cell leukemias, acute nonlymphocytic leukemias, and some B-cell chronic lymphocytic leukemias." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0005223 a rdfs:Class ;
  rdfs:label "Drosophila D17 cell" ;
  rdfs:comment "D17 cells were originally isolated from cultures of dissected imaginal discs29 of Drosophila melanogaster. Despite their epithelial origin, D17 cells exhibit a gene-expression profile that is consistent with that of Drosophila haemocytes. Similarly to haemocytes, D17 cells spontaneously polarize in culture, assemble an exaggerated leading edge and exhibit robust cell motility." ;
  rdfs:subClassOf obo:BTO_0001897 .

obo:BTO_0005550 a rdfs:Class ;
  rdfs:label "8505C cell" ;
  rdfs:comment "Established from undifferentiated thyroid carcinomas of a 78 year old female patient." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0003732 a rdfs:Class ;
  rdfs:label "TUHR-10TKB cell" ;
  rdfs:comment "Human renal cell carcinoma (RCC) cell line, obtained by primary culturing of a clear cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0005267 a rdfs:Class ;
  rdfs:label "293-F FreeStyle cell" ;
  rdfs:comment "FreeStyle 293-F cell line is derived from the 293 cell line and is intended for use with the FreeStyle MAX 293 Expression System or FreeStyle 293 Expression System." .

obo:BTO_0004752 a rdfs:Class ;
  rdfs:label "adipose-derived stromal cell" ;
  rdfs:comment "Adipose-derived stromal cells have been shown to have multiple lineage differentiation properties and to be suitable for tissues regeneration in many degenerative processes." ;
  rdfs:subClassOf obo:BTO_0002064 .

obo:BTO_0002886 a rdfs:Class ;
  rdfs:label "renal epithelium cell line" .

obo:BTO_0000425 a rdfs:Class ;
  rdfs:label "erythrocytic stage" ;
  rdfs:comment "Merozoites from the liver infect red blood cells and replicate asexually through schizogony. This is the erythrocytic stage." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0000779 a rdfs:Class ;
  rdfs:label "mesenteric artery" ;
  rdfs:comment "Either of two arteries arising from the aorta and passing between the two layers of the mesentery to the intestine. 1. One that arises just above the bifurcation of the abdominal aorta into the common iliac arteries and supplies the left half of the transverse colon, the descending colon, the sigmoid colon, and most of the rectum - called also inferior mesenteric artery. 2. A large artery that arises from the aorta just below the celiac artery at the level of the first lumbar vertebra and supplies the greater part of the small intestine, the cecum, the ascending colon, and the right half of the transverse colon - called also superior mesenteric artery." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0003682 a rdfs:Class ;
  rdfs:label "hairy cell leukemia cell" ;
  rdfs:comment "A form of chronic leukemia marked by splenomegaly and the large, mononuclear, villus-covered cells called hairy cells in the bone marrow, spleen, liver, and peripheral blood." ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0003282 a rdfs:Class ;
  rdfs:label "Tet-iNOS-293 cell" ;
  rdfs:comment "Tetracycline-inducible HEK-293 cells stably expressing human inducible NO synthase (iNOS); under the control of a tetracycline-inducible promoter." .

obo:BTO_0004791 a rdfs:Class ;
  rdfs:label "root primordium" ;
  rdfs:comment "Different primordial types like the leaf and flower primordia arise from the shoot lateral meristem." ;
  rdfs:subClassOf obo:BTO_0001188 , obo:BTO_0005525 .

obo:BTO_0004012 a rdfs:Class ;
  rdfs:label "ROS cell" ;
  rdfs:comment "Rat osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002325 a rdfs:Class ;
  rdfs:label "holocrine gland" ;
  rdfs:comment "A gland whose discharged secretion contains entire secreting cells." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0004440 a rdfs:Class ;
  rdfs:label "UT-SCC-14 cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004438 .

obo:BTO_0004154 a rdfs:Class ;
  rdfs:label "KT-4 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line; established from tissue or pleural effusion of Japanese patients with advanced NSCLC." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0003643 a rdfs:Class ;
  rdfs:label "HD-11 cell" ;
  rdfs:comment "Avian (chicken) macrophage cell line." ;
  rdfs:subClassOf obo:BTO_0002278 .

obo:BTO_0005144 a rdfs:Class ;
  rdfs:label "KTC-1 cell" ;
  rdfs:comment "Human undifferentiated thyroid cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0004771 a rdfs:Class ;
  rdfs:label "NPA cell" ;
  rdfs:comment "Papillary thyroid tumor cell line." .

obo:BTO_0000353 a rdfs:Class ;
  rdfs:label "lung cell line" .

obo:BTO_0005935 a rdfs:Class ;
  rdfs:label "culture condition:crotonate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004831 a rdfs:Class ;
  rdfs:label "JB6 cell" ;
  rdfs:comment "Mouse epidermal cell line." ;
  rdfs:subClassOf obo:BTO_0004830 .

obo:BTO_0004390 a rdfs:Class ;
  rdfs:label "SV7tert cell" ;
  rdfs:comment "The SV7tert cell line was derived by introduction of telomerase into SPAML/SV7 cells." .

obo:BTO_0003983 a rdfs:Class ;
  rdfs:label "TXM-18 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002807 a rdfs:Class ;
  rdfs:label "prefrontal cortex" ;
  rdfs:comment "The prefrontal cortex is the anterior part of the frontal lobes of the brain, lying in front of the motor and premotor areas." .

obo:BTO_0001340 a rdfs:Class ;
  rdfs:label "bronchus" ;
  rdfs:comment "Either of the two primary divisions of the trachea that lead respectively into the right and the left lung." .

obo:BTO_0001660 a rdfs:Class ;
  rdfs:label "respiratory smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0000694 a rdfs:Class ;
  rdfs:label "culture condition:L-phenylalanine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006258 a rdfs:Class ;
  rdfs:label "ventral sucker" ;
  rdfs:comment "A mouth, as of a leech, adapted for sucking or adhering." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0005100 a rdfs:Class ;
  rdfs:label "implantation fossa" ;
  rdfs:comment "At the base of the head is a ball-and-socket articulation which serves to attach the neck and the rest of the spermatozoon to the head." .

obo:BTO_0000032 a rdfs:Class ;
  rdfs:label "colonic adenocarcinoma cell" ;
  rdfs:comment "A cell of an adenocarcinoma of the colon is a malignant neoplastic epithelial lesion, arising from the colonic mucosa." ;
  rdfs:subClassOf obo:BTO_0000035 , obo:BTO_0000586 .

obo:BTO_0001388 a rdfs:Class ;
  rdfs:label "trachea" ;
  rdfs:comment "1: The cartilaginous and membranous tube descending from the larynx and branching into the right and left main bronchi. It is kept patent by a series of about twenty transverse horseshoe-shaped cartilages. Called also windpipe. 2: One of a system of minute tubes ramifying throughout the body of a terrestrial arthropod and delivering air to the tissues. Called also tracheal tubule." ;
  rdfs:subClassOf obo:BTO_0000203 .

obo:BTO_0001188 a rdfs:Class ;
  rdfs:label "root" ;
  rdfs:comment "The usually underground part of a seed plant body that originates usually from the hypocotyl, functions as an organ of absorption, aeration, and food storage or as a means of anchorage and support, and differs from a stem especially in lacking nodes, buds, and leaves." .

obo:BTO_0006196 a rdfs:Class ;
  rdfs:label "vertebra" ;
  rdfs:comment "One of the bony or cartilaginous segments composing the spinal column, consisting in some lower vertebrates of several distinct elements which never become united, and in higher vertebrates having a short more or less cylindrical body whose ends articulate by pads of elastic or cartilaginous tissue with those of adjacent vertebrae and a bony arch that encloses the spinal cord." .

obo:BTO_0004271 a rdfs:Class ;
  rdfs:label "hyalocyte" ;
  rdfs:comment "A cell occurring in the peripheral part of the vitreous body that may be responsible for production of hyaluronic acid and possibly of collagen." .

obo:BTO_0000241 a rdfs:Class ;
  rdfs:label "cervical epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000645 a rdfs:Class ;
  rdfs:label "colon sigmoideum" ;
  rdfs:comment "The S-shaped part of the colon which lies in the pelvis, extending from the pelvic brim to the third segment of the sacrum, and continuous above with the descending (or iliac) colon and below with the rectum." .

obo:BTO_0002534 a rdfs:Class ;
  rdfs:label "HBL-3 cell" ;
  rdfs:comment "Precursor B acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0005111 a rdfs:Class ;
  rdfs:label "HaCaT II-4 cell" ;
  rdfs:comment "The low-grade malignant cell line HaCaT II-4 is derived from the immortalized human keratinocyte cell line HaCaT (27) after transfection with the c-Ha-ras oncogene." .

obo:BTO_0001254 a rdfs:Class ;
  rdfs:label "sweat" ;
  rdfs:comment "The fluid excreted from the sweat glands of the skin." .

obo:BTO_0005446 a rdfs:Class ;
  rdfs:label "plant septum" ;
  rdfs:comment "A partition or wall, especially in an ovary. A septum is formed by the fusion of the walls of two adjacent organs like ovary walls or anther walls, for example, the partition between two sections of an orange." .

obo:BTO_0000049 a rdfs:Class ;
  rdfs:label "adrenal medulla" ;
  rdfs:comment "The inner, reddish-brown portion of the adrenal glands that synthesizes, stores, and releases epinephrine and norepinephrine." .

obo:BTO_0000339 a rdfs:Class ;
  rdfs:label "dental pulp" ;
  rdfs:comment "The soft sensitive tissue that fills the central cavity of a tooth." .

obo:BTO_0005441 a rdfs:Class ;
  rdfs:label "lateral root" ;
  rdfs:comment "Lateral roots extend horizontally from the primary root (radicle) and serve to anchor the plant securely into the soil. This branching of roots also contributes to water uptake, and facilitates the extraction of nutrients required for the growth and development of the plant." ;
  rdfs:subClassOf obo:BTO_0001188 .

obo:BTO_0005984 a rdfs:Class ;
  rdfs:label "culture condition:carbon monoxide-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004046 a rdfs:Class ;
  rdfs:label "alveolar mucosa" ;
  rdfs:comment "The mucous membrane apical to the attached gingiva." .

obo:BTO_0001005 a rdfs:Class ;
  rdfs:label "amnion epithelial cell" ;
  rdfs:comment "A form of stem cells extracted from the lining of the inner membrane of the placenta." .

obo:BTO_0001011 a rdfs:Class ;
  rdfs:label "cerebellar Purkinje cell" ;
  rdfs:comment "Large neurons in the cerebellar cortex that have piriform cell bodies in the Purkinje layer (the stratum purkinjense cerebelli) and large branching dendrite trees going through the outer (molecular) layer towards the surface." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0005484 a rdfs:Class ;
  rdfs:label "DLD-1/alpha-cat cell" ;
  rdfs:comment "The expression vector encoding the wild type alpha-catenin was transfected into DLD-1/delta alpha cells and selected using G418 to obtain a stable expression cell line." .

obo:BTO_0002086 a rdfs:Class ;
  rdfs:label "posterior chamber of the eye" ;
  rdfs:comment "That portion of the aqueous-containing space between the cornea and the lens which is bounded in front by the iris, and behind by the lens and ciliary zonule." ;
  rdfs:subClassOf obo:BTO_0002085 .

obo:BTO_0002815 a rdfs:Class ;
  rdfs:label "transitional cell carcinoma cell" ;
  rdfs:comment "Cancer that forms in transitional cells in the lining of the bladder, ureter, or renal pelvis. Transitional cells are cells that can change shape and stretch without breaking apart." ;
  rdfs:subClassOf obo:BTO_0000176 , obo:BTO_0000680 .

obo:BTO_0005636 a rdfs:Class ;
  rdfs:label "culture condition:wheat bran-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004094 a rdfs:Class ;
  rdfs:label "epithelial ovarian cancer cell" ;
  rdfs:comment "Cancer that occurs in the cells on the surface of the ovary." ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0005965 a rdfs:Class ;
  rdfs:label "HL-7702 cell" ;
  rdfs:comment "Normal human liver cell line." .

obo:BTO_0002655 a rdfs:Class ;
  rdfs:label "postlarva" ;
  rdfs:comment "The final juvenile stage. It is the only time in a lobster's life that it can swim forward." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0006211 a rdfs:Class ;
  rdfs:label "HTC-C3 cell" ;
  rdfs:comment "Human thyroid carcinoma cell line, established from cancer cells disseminated in the pleural fluid of a 44-year-old woman with undifferentiated giant cell carcinoma of the thyroid after chemotherapy, x-ray hyperthermia and OK432 injections in 1986." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0004455 a rdfs:Class ;
  rdfs:label "LN-784 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0001600 a rdfs:Class ;
  rdfs:label "cuticle" ;
  rdfs:comment "A layer of more or less solid substance which covers the free surface of an epithelial cell." ;
  rdfs:subClassOf obo:BTO_0000634 .

obo:BTO_0001794 a rdfs:Class ;
  rdfs:label "posterior silk gland" ;
  rdfs:subClassOf obo:BTO_0001250 .

obo:BTO_0005525 a rdfs:Class ;
  rdfs:label "plant primordium" ;
  rdfs:comment "A cell or organ in its initial stage of development." .

obo:BTO_0000629 a rdfs:Class ;
  rdfs:label "ink" ;
  rdfs:comment "The black protective secretion of a cephalopod; The ink is composed mostly of melanin and has been used as the artists pigment, sepia." .

obo:BTO_0003418 a rdfs:Class ;
  rdfs:label "biceps femoris" ;
  rdfs:comment "Biceps of the femur." ;
  rdfs:subClassOf obo:BTO_0003178 .

obo:BTO_0003874 a rdfs:Class ;
  rdfs:label "follicular thyroid cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001610 .

obo:BTO_0005011 a rdfs:Class ;
  rdfs:label "1205-Lu cell" ;
  rdfs:comment "The 1205Lu cell line was derived from lung metastases of WM793 after subcutaneous injection into immunodeficient mice. 1205Lu cells are highly invasive and exhibit spontaneous metastasis to lung and liver." .

obo:BTO_0000834 a rdfs:Class ;
  rdfs:label "Detroit-562 cell" ;
  rdfs:comment "Human, Caucasian female, pharynx, carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000790 .

obo:BTO_0005957 a rdfs:Class ;
  rdfs:label "extrastaminal nectary" ;
  rdfs:comment "Nectary located outside the stamen whorl of a flower." ;
  rdfs:subClassOf obo:BTO_0000357 .

obo:BTO_0003972 a rdfs:Class ;
  rdfs:label "prostate gland stromal cell" ;
  rdfs:subClassOf obo:BTO_0002064 .

obo:BTO_0005695 a rdfs:Class ;
  rdfs:label "sensorimotor area" ;
  rdfs:comment "The precentral and postcentral gyri of the cerebral cortex." ;
  rdfs:subClassOf obo:BTO_0000233 .

obo:BTO_0006222 a rdfs:Class ;
  rdfs:label "olfactory placode" ;
  rdfs:comment "A thick plate of cells derived from the neural ectoderm in the head region of the vertebrate embryo and developing into the olfactory region of the nasal cavity." .

obo:BTO_0006168 a rdfs:Class ;
  rdfs:label "nucleus preopticus medianus" ;
  rdfs:comment "A nucleus of nerve cells in the preoptic area of the basal forebrain." ;
  rdfs:subClassOf obo:BTO_0003664 .

obo:BTO_0003999 a rdfs:Class ;
  rdfs:label "M-14-K cell" ;
  rdfs:comment "Human mesothelioma cell line." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0000212 a rdfs:Class ;
  rdfs:label "caudate putamen" ;
  rdfs:comment "A centrally-located portion of the brain affected by Huntington's Disease. The putamen is structurally similar to the caudate nucleus together with which it composes what is termed the striatum." .

obo:BTO_0002150 a rdfs:Class ;
  rdfs:label "gill filament" ;
  rdfs:comment "The thread-like, soft, red respiratory and excretory structure projecting outward from the gill arch." .

obo:BTO_0000009 a rdfs:Class ;
  rdfs:label "culture condition:3-hydroxybenzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003382 a rdfs:Class ;
  rdfs:label "inner ear vestibulum" ;
  rdfs:comment "The parts of the membranous labyrinth comprising the utricle and the saccule and contained in the cavity of the bony labyrinth." .

obo:BTO_0001571 a rdfs:Class ;
  rdfs:label "erythroblast" ;
  rdfs:comment "Any of the nucleated cells normally found only in bone marrow that develop into erythrocytes." ;
  rdfs:subClassOf obo:BTO_0001441 .

obo:BTO_0001394 a rdfs:Class ;
  rdfs:label "trapping leaf" ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0005951 a rdfs:Class ;
  rdfs:label "BT-159 cell" ;
  rdfs:comment "Primary human adult GBM line derived from a tumor resected at initial diagnosis at Brigham and Women's Hospital." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0003003 a rdfs:Class ;
  rdfs:label "epididymal fluid" ;
  rdfs:comment "The fluid from the epididymis." .

obo:BTO_0005403 a rdfs:Class ;
  rdfs:label "glycogen cell" ;
  rdfs:comment "The junctional zone of the mouse placenta consists of two main trophoblast populations, spongiotrophoblasts and glycogen cells (GCs), but the development and function of both cell types are unknown." .

obo:BTO_0006512 a rdfs:Class ;
  rdfs:label "SPCA-1 cell" ;
  rdfs:comment "Lung adenocarcinoma cell line. But seems to be contaminated with Hela cells." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0006280 a rdfs:Class ;
  rdfs:label "vas deferens ampulla" ;
  rdfs:comment "The end of each vas deferens has an expanded portion, the ampulla, that serves as a reservoir for sperm." .

obo:BTO_0003466 a rdfs:Class ;
  rdfs:label "293-CD40 cell" ;
  rdfs:comment "A 293 cell line stably expressing Flag-tagged CD40." .

obo:BTO_0005196 a rdfs:Class ;
  rdfs:label "KBv200 cell" ;
  rdfs:comment "A multidrug-resistant clone of human oral epidermoid carcinoma KB cells was isolated by stepwise selection on exposure to increasing doses of vincristine. The final clone, KBv200, obtained after ethylmethane sulfonate mutagenesis showed 156-fold higher resistance to vincristine than KB cells. The cells were also cross-resistant to paclitaxel and adriamycin." .

obo:BTO_0005478 a rdfs:Class ;
  rdfs:label "SUM-225CWN cell" ;
  rdfs:comment "Human breast cancer cell line, derived from a primary human recurrent ductal carcinoma chest wall nodule." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0005084 a rdfs:Class ;
  rdfs:label "vocal fold" ;
  rdfs:comment "Either of two pairs of folds of mucous membrane projecting into the larynx." .

obo:BTO_0005145 a rdfs:Class ;
  rdfs:label "chorionic epithelium" .

obo:BTO_0005734 a rdfs:Class ;
  rdfs:label "culture condition:methyl vanillate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001470 a rdfs:Class ;
  rdfs:label "epidermal cell" ;
  rdfs:comment "Cell of epidermis in animals." .

obo:BTO_0005763 a rdfs:Class ;
  rdfs:label "culture condition:2,4-dinitroanisole-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002698 a rdfs:Class ;
  rdfs:label "bed nucleus of stria terminalis" ;
  rdfs:comment "Neural nuclei situated in the septal region. They have afferent and cholinergic efferent connections with a variety of forebrain and brainstem areas including the hippocampus, the lateral hypothalamus, the tegmentum, and the amygdala. Included are the dorsal, lateral, medial, and triangular septal nuclei, septofimbrial nucleus, nucleus of diagonal band, nucleus of anterior commissure, and the nucleus of stria terminalis." .

obo:BTO_0000515 a rdfs:Class ;
  rdfs:label "haustorium" ;
  rdfs:comment "A specialized absorbing structure of a parasitic plant, such as the rootlike outgrowth of the dodder, that obtains food from a host plant. In parasitic fungi, haustoria are specialized hyphae that penetrate the cells of other organisms and absorb nutrients directly from them." .

obo:BTO_0004602 a rdfs:Class ;
  rdfs:label "human aortic endothelial cell" ;
  rdfs:comment "Human aortic endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003246 .

obo:BTO_0001351 a rdfs:Class ;
  rdfs:label "vomeronasal nerve" ;
  rdfs:comment "A nerve that exists in the human fetus but disappears before birth, that originates in the olfactory epithelial cells of Jacobson's organ, and that passes through the submucous tissue of the nasal septum and the cribriform plate of the ethmoid bone to the olfactory bulb." .

obo:BTO_0000877 a rdfs:Class ;
  rdfs:label "culture condition:trehalose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005717 a rdfs:Class ;
  rdfs:label "MM200 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003423 a rdfs:Class ;
  rdfs:label "lacrimal gland acinar cell" .

obo:BTO_0004532 a rdfs:Class ;
  rdfs:label "C-10 cell" ;
  rdfs:comment "A line of murine alveolar type II lung epithelial cells." ;
  rdfs:subClassOf obo:BTO_0003213 .

obo:BTO_0005641 a rdfs:Class ;
  rdfs:label "awn" ;
  rdfs:comment "Any of the bristles growing from the spikelets of certain grasses, including cereals." .

obo:BTO_0000902 a rdfs:Class ;
  rdfs:label "plant vessel" ;
  rdfs:comment "One of the tubular conductive vessels in the xylem of vascular plants." .

obo:BTO_0001557 a rdfs:Class ;
  rdfs:label "SF-767 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003773 a rdfs:Class ;
  rdfs:label "oropharyngeal squamous cell carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0001289 .

obo:BTO_0001058 a rdfs:Class ;
  rdfs:label "phloem" ;
  rdfs:comment "A complex tissue in the vascular system of higher plants that consists mainly of sieve tubes and elongated parenchyma cells usually with fibers and that functions in translocation and in support and storage." .

obo:BTO_0000177 a rdfs:Class ;
  rdfs:label "BG-1 cell" ;
  rdfs:comment "Ovarian adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0004369 a rdfs:Class ;
  rdfs:label "inferior vestibular nucleus" ;
  rdfs:comment "The one of the four vestibular nuclei on each side of the medulla oblongata that is situated between the medial vestibular nucleus and the inferior cerebellar peduncle and that sends fibers down both sides of the spinal cord to synapse with motor neurons of the ventral roots." ;
  rdfs:subClassOf obo:BTO_0004368 .

obo:BTO_0001287 a rdfs:Class ;
  rdfs:label "sporangium" ;
  rdfs:comment "A structure in which spores are produced." ;
  rdfs:subClassOf obo:BTO_0001285 .

obo:BTO_0003654 a rdfs:Class ;
  rdfs:label "ventricular zone" ;
  rdfs:comment "There are two primary regions that are thought to give rise to neurons that make up the cerebellum. The first region is the ventricular zone (the roof of the fourth ventricle). This area produces Purkinje cells and deep cerebellar nuclear neurons." .

obo:BTO_0001417 a rdfs:Class ;
  rdfs:label "uredospore" ;
  rdfs:comment "One of the thin-walled spores that are produced by the uredinial hyphae of rust fungi and spread the fungus vegetatively." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0006097 a rdfs:Class ;
  rdfs:label "HEKa cell" ;
  rdfs:comment "Normal human primary epidermal keratinocytes." ;
  rdfs:subClassOf obo:BTO_0001413 .

obo:BTO_0000653 a rdfs:Class ;
  rdfs:label "iris" ;
  rdfs:comment "The circular pigmented membrane behind the cornea, perforated by the pupil; the most anterior portion of the vascular tunic of the eye, it is made up of a flat bar of circular muscular fibers surrounding the pupil, a thin layer of smooth muscle fibers by which the pupil is dilated, thus regulating the amount of light entering the eye, and posteriorly two layers of pigmented epithelial cells." .

obo:BTO_0003347 a rdfs:Class ;
  rdfs:label "HEK-293 Tet-On 3G cell" ;
  rdfs:comment "HEK 293 Tet-On 3G is a transformed human embryonic kidney-derived cell line that expresses the tetracycline (Tet)- regulated transactivator Tet-On 3G." .

obo:BTO_0001130 a rdfs:Class ;
  rdfs:label "prostate gland cancer cell" ;
  rdfs:comment "A malignant tumour cell of glandular origin in the prostate. Over 95% are adenocarcinomas." .

obo:BTO_0006047 a rdfs:Class ;
  rdfs:label "PH5CH cell" ;
  rdfs:comment "Human immortalized non-neoplastic cell line; established by  transfection with a simian virus 40 large T antigen expression vector." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0000021 a rdfs:Class ;
  rdfs:label "head muscle" ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0005773 a rdfs:Class ;
  rdfs:label "HuH-1 cell" ;
  rdfs:comment "Human hepatoma cell line, established from a liver tumor of a 53-year-old japanese male." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000479 a rdfs:Class ;
  rdfs:label "forelimb muscle" ;
  rdfs:comment "A muscle of a limb (as an arm, wing, fin, or leg) that is situated anteriorly." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0003516 a rdfs:Class ;
  rdfs:label "LX-2 cell" ;
  rdfs:comment "Immortalized human hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0005804 a rdfs:Class ;
  rdfs:label "dentate gyrus IS-I cell" ;
  rdfs:comment "The interneuron-specific subpopulation of interneurons have axons that preferentially innervate other interneurons. The dentate gyrus IS-I class interneurons are visualized by immunostaining for Calretinin (CR)and establish multiple symmetrical synapses on the dendrites and somata of other CR-positive IS-I cells, Calbindin (CB) containing interneurons, and VIP-positive basket cells, but they do not innervate PV-containing interneurons. The dendrites of dentate gyrus IS I neurons appear in all layers of dentate gyrus and more characteristic feature of these dendrites is that they form long dendrodendritic junctions with each other." .

obo:BTO_0002650 a rdfs:Class ;
  rdfs:label "entorhinal area" ;
  rdfs:comment "The inferior and posterior parts of the piriform area, including the caudal part of the parahippocampal gyrus." .

obo:BTO_0002940 a rdfs:Class ;
  rdfs:label "Calu-1 cell" ;
  rdfs:comment "Human epidermoid lung carcinoma grade III cell line, established from a Caucasian male 47 years old." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0001914 a rdfs:Class ;
  rdfs:label "colorectal adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0001616 .

obo:BTO_0000598 a rdfs:Class ;
  rdfs:label "B5/589 cell" ;
  rdfs:comment "Human mammary epithelial cell line." .

obo:BTO_0000205 a rdfs:Class ;
  rdfs:label "nerve plexus" ;
  rdfs:comment "A plexus made up of intermingled nerve fibers." .

obo:BTO_0000610 a rdfs:Class ;
  rdfs:label "hybridoma cell" ;
  rdfs:comment "A cell hybrid in which a tumour cell forms one of the original source cells. In practice, confined to hybrids between T- or B-lymphocytes and appropriate myeloma cell lines." .

obo:BTO_0002908 a rdfs:Class ;
  rdfs:label "PLB-985 cell" ;
  rdfs:comment "Human acute myeloid leukemia (derivative of HL-60). PLB-985 is a subclone of cell line HL-60." .

obo:BTO_0001069 a rdfs:Class ;
  rdfs:label "pitcher" ;
  rdfs:comment "A modified leaf of a pitcher plant in which the hollowed petiole and base of the blade form an elongated receptacle." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003606 a rdfs:Class ;
  rdfs:label "airway fluid" ;
  rdfs:comment "Airway fluid comprises a number of components including water, salts, enzymes, mucus glycoproteins and other proteins which in the correct proportions confer its protective characteristics. For example mucus comprises only 1% of the fluid but is essential to the viscoelastic properties necessary for mucociliary clearance." .

obo:BTO_0003253 a rdfs:Class ;
  rdfs:label "ELT-3 cell" ;
  rdfs:comment "Eker rat uterine leiomyoma-derived cell line." ;
  rdfs:subClassOf obo:BTO_0003252 .

obo:BTO_0004299 a rdfs:Class ;
  rdfs:label "lung epithelial cell" .

obo:BTO_0000836 a rdfs:Class ;
  rdfs:label "MDBK cell" ;
  rdfs:comment "The MDBK cell line was derived from a kidney of an apparently normal adult steer, February 18, 1957, by S.H. Madin and N.B. Darby." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0005654 a rdfs:Class ;
  rdfs:label "nerve ring" ;
  rdfs:comment "A ring of nervous tissue, especially a ring of concentrated nervous tissue about the pharynx of various invertebrate animals." ;
  rdfs:subClassOf obo:BTO_0000938 , obo:BTO_0001262 .

obo:BTO_0001428 a rdfs:Class ;
  rdfs:label "breast epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003154 a rdfs:Class ;
  rdfs:label "epineurium" ;
  rdfs:comment "The external connective-tissue sheath of a nerve trunk." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0002021 a rdfs:Class ;
  rdfs:label "prostate adenocarcinoma cell" ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0002870 a rdfs:Class ;
  rdfs:label "RT-4 cell" ;
  rdfs:comment "Human urinary bladder transitional cell carcinoma; established from a recurrent well-differentiated transitional papillary tumor of the urinary bladder (clinical stage T2, histological grade G1, treated with gold grains 2 years earlier and diathermy after recurrence 10 months later) of a 63-year-old man in 1968." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0001997 a rdfs:Class ;
  rdfs:label "arteriole" ;
  rdfs:comment "A small branch of an artery (a vessel that carries blood high in oxygen away from the heart to the body) leading to a capillary. The oxygenated hemoglobin (oxyhemoglobin) makes the blood in arteries and arterioles look bright red." .

obo:BTO_0000865 a rdfs:Class ;
  rdfs:label "anterior spinal root" ;
  rdfs:comment "The motor division of each spinal nerve, attached centrally to the spinal cord and joining peripherally with the corresponding posterior (sensory) root to form the nerve before it emerges through the intervertebral foramen. It conveys motor fibers to skeletal muscle and contains preganglionic autonomic fibers at thoracolumbar and sacral levels. There are 31 anterior and 31 posterior roots: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Called also ventral or motor root of spinal nerve, root ventralis nervi spinalis, and root motoria nervi spinalis." .

obo:BTO_0001647 a rdfs:Class ;
  rdfs:label "lip" ;
  rdfs:comment "Either of two fleshy folds that surround the mouth in humans and many other vertebrates and are the organs of human speech." .

obo:BTO_0001399 a rdfs:Class ;
  rdfs:label "Tay-Sachs disease specific cell type" ;
  rdfs:comment "Tay-Sachs disease is a lysosomal disease (lipidosis) in which hexosaminidase A, an enzyme that degrades ganglioside GM2, is absent. A hereditary disease that affects young children almost exclusively of eastern European Jewish descent, in which an enzyme deficiency leads to the accumulation of gangliosides in the brain and nerve tissue, resulting in mental retardation, convulsions, blindness, and, ultimately, death." .

obo:BTO_0005812 a rdfs:Class ;
  rdfs:label "lung endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001176 .

obo:BTO_0001828 a rdfs:Class ;
  rdfs:label "tapetum lucidum" ;
  rdfs:comment "A layer in the choroid chiefly of nocturnal mammals that reflects light causing the eyes to glow when light strikes them at night and that is made up of several layers of flattened cells covered by a zone of doubly refracting crystals." .

obo:BTO_0001455 a rdfs:Class ;
  rdfs:label "thymic carcinoma cell" ;
  rdfs:comment "Thymic carcinoma is a disease in which cancer (malignant) cells are found in the tissues of the thymus. Thymic carcinoma is difficult to treat and generally spreads to other parts of the body. People with thymoma often have other diseases of the immune system, most commonly myasthenia gravis, a disease in which the muscles become weak." ;
  rdfs:subClassOf obo:BTO_0001460 .

obo:BTO_0001064 a rdfs:Class ;
  rdfs:label "phycobiont" ;
  rdfs:comment "Phycobionts are usually green algae, Chlorophyceae, yellow-green algae Xanthophyceae, and some other groups of algae." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0000825 a rdfs:Class ;
  rdfs:label "mantle" ;
  rdfs:comment "A fold or lobe or pair of lobes of the body wall of a mollusk or brachiopod that in shell-bearing forms lines the shell and bears shell-secreting glands." ;
  rdfs:subClassOf obo:BTO_0000139 .

obo:BTO_0003061 a rdfs:Class ;
  rdfs:label "retinal cell line" .

obo:BTO_0003379 a rdfs:Class ;
  rdfs:label "phellogen" ;
  rdfs:comment "Meristematic tissue in plants, giving rise to cork (phellem) and phelloderm cells." ;
  rdfs:subClassOf obo:BTO_0000170 .

obo:BTO_0000544 a rdfs:Class ;
  rdfs:label "guard cell" ;
  rdfs:comment "One of the two crescent-shaped epidermal cells that border and open and close a plant stoma." .

obo:BTO_0001326 a rdfs:Class ;
  rdfs:label "cholangiocarcinoma cell" ;
  rdfs:comment "An adenocarcinoma arising from the epithelium of the intrahepatic bile ducts, composed of eosinophilic cuboidal or columnar epithelial cells arranged in tubules or acini with abundant fibrous stroma; mucus may be secreted but not bile." .

obo:BTO_0004687 a rdfs:Class ;
  rdfs:label "orbit" ;
  rdfs:comment "The bony socket of the eye." .

obo:BTO_0006165 a rdfs:Class ;
  rdfs:label "endometrial luminal epithelial cell" .

obo:BTO_0005991 a rdfs:Class ;
  rdfs:label "pronephric duct" ;
  rdfs:comment "It is the predecessor of the Wolffian duct. The development of the pronephric duct is a part of the development of the urinary and reproductive organs." .

obo:BTO_0004051 a rdfs:Class ;
  rdfs:label "bipolar cell" ;
  rdfs:comment "A type of neuron which has two extensions. Bipolar cells are specialized sensory neurons for the transmission of special senses. As such, they are part of the sensory pathways for smell, sight, taste, hearing and vestibular functions." ;
  rdfs:subClassOf obo:BTO_0001037 .

obo:BTO_0004019 a rdfs:Class ;
  rdfs:label "larynx squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0006110 a rdfs:Class ;
  rdfs:label "M1 macrophage" ;
  rdfs:comment "Macrophages that encourage inflammation. M1 \"killer\" macrophages are activated by LPS and IFN-gamma, and secrete high levels of IL-12 and low levels of IL-10." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0006183 a rdfs:Class ;
  rdfs:label "arterial blood cell" ;
  rdfs:comment "Blood cell found in arteries. Except for the pulmonary artery the arterial blood is rich in oxygen." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0001152 a rdfs:Class ;
  rdfs:label "radicle" ;
  rdfs:comment "The lower part of the axis of a plant embryo or seedling." .

obo:BTO_0005705 a rdfs:Class ;
  rdfs:label "headfoot muscle" ;
  rdfs:comment "The head-foot is the part you see most easily in slugs and snails. It is mostly a muscular organ covered in cilia and rich in mucous cells, which the mollusc uses to move around, it normally tapers to a tail at one end and has a head incorporated in the front. The head includes a mouth, eyes and tentacles, the last two may be much reduced or even absent. In those species with shells the head-foot can be drawn into the shell." .

obo:BTO_0002714 a rdfs:Class ;
  rdfs:label "UM-SCC-22A cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0003440 a rdfs:Class ;
  rdfs:label "COLO-357 cell" ;
  rdfs:comment "Human pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0005383 a rdfs:Class ;
  rdfs:label "Rh-3 cell" ;
  rdfs:comment "Human alveolar rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0001090 a rdfs:Class ;
  rdfs:label "mouth" ;
  rdfs:comment "The natural opening through which food passes into the body of an animal and which in vertebrates is typically bounded externally by the lips and internally by the pharynx and encloses the tongue, gums, and teeth." .

obo:BTO_0001903 a rdfs:Class ;
  rdfs:label "logarithmic phase culture" ;
  rdfs:comment "A cell culture at the steepest slope of the growth curve of a culture-- at the phase of vigorous growth during which cell number doubles every 20-30 minutes." ;
  rdfs:subClassOf obo:BTO_0001900 .

obo:BTO_0002057 a rdfs:Class ;
  rdfs:label "lung adenocarcinoma cell" ;
  rdfs:comment "A type of bronchogenic carcinoma made up of cuboidal or columnar cells in a discrete mass, usually at the periphery of the lungs. Most such tumors form glandular structures containing mucin, although a minority are solid and without mucin. Growth is slow, but there may be early invasion of blood and lymph vessels, giving rise to metastases while the primary lesion is still asymptomatic." ;
  rdfs:subClassOf obo:BTO_0000176 , obo:BTO_0002058 .

obo:BTO_0004195 a rdfs:Class ;
  rdfs:label "pharyngeal organ" ;
  rdfs:comment "An outpocketing of the gill cavity in certain teleosts. Functioning as accessory digestive organs, e.g. Dorosoma (Clupeidae), Ophiocephalidae, Heterotis (Osteoglossidae), Anabantidae. Also found in Heterotidae, Characidae, Chanoidei, Gonorhynchoidei, Clupeidae and Engraulidae." .

obo:BTO_0004362 a rdfs:Class ;
  rdfs:label "colon muscle" ;
  rdfs:subClassOf obo:BTO_0000643 .

obo:BTO_0005110 a rdfs:Class ;
  rdfs:label "ameloblastoma cell" ;
  rdfs:comment "A tumor of the jaw derived from remnants of the embryonic rudiment of tooth enamel." .

obo:BTO_0005788 a rdfs:Class ;
  rdfs:label "SH-EP1 cell" ;
  rdfs:comment "Human neuroblastoma cell line, established from brain bone marrow tissue from a 4 years old caucasian white with neuroblastoma." .

obo:BTO_0002370 a rdfs:Class ;
  rdfs:label "colleterial gland" ;
  rdfs:comment "A gland in female insects that secretes a cement by which the eggs are glued together or attached to an external object." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0004083 a rdfs:Class ;
  rdfs:label "HCC-2935 cell" ;
  rdfs:comment "Non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0004655 a rdfs:Class ;
  rdfs:label "SK-ChA-1 cell" ;
  rdfs:comment "Human cholangiocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0005056 a rdfs:Class ;
  rdfs:label "J7 hepatoma cell" ;
  rdfs:comment "Human hepatocellular carcinoma (HCC) cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0004556 a rdfs:Class ;
  rdfs:label "submandibular gland duct" ;
  rdfs:comment "The duct of the submandibular salivary gland; it opens at the sublingual papilla near the frenulum of the tongue." .

obo:BTO_0003086 a rdfs:Class ;
  rdfs:label "rosette leaf" ;
  rdfs:comment "One of multiple leaves borne in a rosette." .

obo:BTO_0002583 a rdfs:Class ;
  rdfs:label "YMB-1-E cell" ;
  rdfs:comment "Human breast cancer cell line; established from a 55 year-old female." ;
  rdfs:subClassOf obo:BTO_0002404 .

obo:BTO_0002923 a rdfs:Class ;
  rdfs:label "BEAS-2B cell" ;
  rdfs:comment "Epithelial cells were isolated from normal human bronchial epithelium obtained from autopsy of non-cancerous individuals." ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0000125 a rdfs:Class ;
  rdfs:label "blast cell" ;
  rdfs:comment "In the monophyletic theory, the least differentiated, totipotential blood cell without commitment as to its particular series, from which all blood cells are derived, preceding a stem cell." .

obo:BTO_0001177 a rdfs:Class ;
  rdfs:label "retinal pigment epithelium" ;
  rdfs:comment "The pigment cell layer that nourishes the retinal cells, located just outside the retina and attached to the choroid." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0002687 a rdfs:Class ;
  rdfs:label "Leydig cell tumor cell" ;
  rdfs:comment "The most common nongerminal tumor of the testis, derived from the Leydig cells of the testis; such tumors are rarely malignant." ;
  rdfs:subClassOf obo:BTO_0000279 .

obo:BTO_0005745 a rdfs:Class ;
  rdfs:label "SHI-1 cell" ;
  rdfs:comment "Human acute myelocytic leukemia cell line, established in 2002 from the bone marrow of a 37-year-old male with relapsed acute monocytic leukemia (AML-M5b)." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0003527 a rdfs:Class ;
  rdfs:label "T-HSC/Cl-6 cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0004174 a rdfs:Class ;
  rdfs:label "MOLT-17 cell" ;
  rdfs:comment "Human T cell leukemia cell line; established from the peripheral blood of a 5-year-old girl with T cell acute lymphoblastic leukemia (T-ALL) at relapse in 1984." ;
  rdfs:subClassOf obo:BTO_0002504 .

obo:BTO_0004711 a rdfs:Class ;
  rdfs:label "head capsule" ;
  rdfs:comment "The insect's head is sometimes referred to as the head-capsule, and is the insect's feeding and sensory centre. It supports the eyes, antennae and jaws of the insect." ;
  rdfs:subClassOf obo:BTO_0000282 .

obo:BTO_0005016 a rdfs:Class ;
  rdfs:label "breast hyperplasia cell" ;
  rdfs:comment "Hyperplasia or hypergenesis means abnormal cell proliferation of cells. It may result in the gross enlargement of an organ and the term is sometimes mixed with benign neoplasia/ benign tumor." ;
  rdfs:subClassOf obo:BTO_0000150 .

obo:BTO_0001878 a rdfs:Class ;
  rdfs:label "psoas minor" ;
  rdfs:comment "A weak flexor of the trunk and lumbar spinal column. Psoas is derived from the Greek psoa, the plural meaning muscles of the loin." ;
  rdfs:subClassOf obo:BTO_0001140 .

obo:BTO_0006388 a rdfs:Class ;
  rdfs:label "cuvierian tubule" ;
  rdfs:comment "Cuvierian tubules are clusters of fine tubes located at the base of the respiratory tree in some sea cucumbers in the genera Bohadschia, Holothuria and Pearsonothuria, all of which are included in the family Holothuriidae." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0000916 a rdfs:Class ;
  rdfs:label "NC37 cell" ;
  rdfs:comment "Human lymphoblastoid cell line." .

obo:BTO_0000155 a rdfs:Class ;
  rdfs:label "bronchoalveolar lavage fluid" ;
  rdfs:comment "A technique by which cells and fluid from bronchioles and lung alveoli are removed for diagnosis of disease or evaluation of treatment. A bronchoscope is wedged into a bronchus and sterile saline is pumped in and then removed along with the fluid and cells to be analyzed." .

obo:BTO_0005329 a rdfs:Class ;
  rdfs:label "culture condition:nitrate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004578 a rdfs:Class ;
  rdfs:label "vascular smooth muscle cell" ;
  rdfs:comment "Vascular smooth muscle refers to the particular type of smooth muscle found within, and composing the majority of the wall of blood vessels." .

obo:BTO_0001316 a rdfs:Class ;
  rdfs:label "submandibular gland" ;
  rdfs:comment "One of the three chief, paired salivary glands, predominantly serous, lying partly above and partly below the posterior half of the base of the mandible." ;
  rdfs:subClassOf obo:BTO_0001203 .

obo:BTO_0001535 a rdfs:Class ;
  rdfs:label "SW-48 cell" ;
  rdfs:comment "Human colon; colorectal adenocarcinoma cell line. Morphology: epithelial." ;
  rdfs:subClassOf obo:BTO_0001914 .

obo:BTO_0002644 a rdfs:Class ;
  rdfs:label "CCD-13Lu cell" ;
  rdfs:comment "Human normal lung fibroblast cell line established from a black 71-years-old human male. Derived from normal tissue from a patient with pancreatic carcinoma." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0002429 a rdfs:Class ;
  rdfs:label "HA22T/VGH cell" ;
  rdfs:comment "The HA22T/VGH cell line was established from a surgical specimen of hepatocellular carcinoma obtained from a 56-year-old Chinese male." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001265 a rdfs:Class ;
  rdfs:label "soleus" ;
  rdfs:comment "A broad flat muscle of the calf of the leg lying immediately below the gastrocnemius." ;
  rdfs:subClassOf obo:BTO_0000722 .

obo:BTO_0001163 a rdfs:Class ;
  rdfs:label "REH cell" ;
  rdfs:comment "Human B cell precursor leukemia established from the peripheral blood of a 15-year-old North African girl with acute lymphoblastic leukaemia, ALL at first relapse, in 1973." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0002375 a rdfs:Class ;
  rdfs:label "bronchiole" ;
  rdfs:comment "A minute thin-walled branch of a bronchus." .

obo:BTO_0005051 a rdfs:Class ;
  rdfs:label "L87/4 cell" ;
  rdfs:comment "L87/4 and L88/5 are two permanent SV40- transformed human stroma cell lines derived from the bone marrow of a hematologically normal male patient." ;
  rdfs:subClassOf obo:BTO_0003296 .

obo:BTO_0006025 a rdfs:Class ;
  rdfs:label "HCC-2279 cell" ;
  rdfs:comment "Human lung adeno-squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0002523 a rdfs:Class ;
  rdfs:label "HBL-2 cell" ;
  rdfs:comment "Human diffuse large B cell lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0006365 .

obo:BTO_0004553 a rdfs:Class ;
  rdfs:label "E-18 rat primary hippocampal neuron" ;
  rdfs:comment "Primary Rat Hippocampal Cells are live neurons isolated from micro surgically dissected regions of day 18 embryonic Sprague/Dawley rat brain. These cells are prepared fresh each week and shipped in a nutrient rich medium that keeps the cells alive for up to 14 days under refrigeration." ;
  rdfs:subClassOf obo:BTO_0003036 .

obo:BTO_0002672 a rdfs:Class ;
  rdfs:label "medial nucleus of medial geniculate body" ;
  rdfs:comment "The medial of the medial geniculate nuclei; it receives afferent projections from both auditory and nonauditory neurons of the brainstem, from the fibers of the inferior colliculus and deep layers of the superior colliculus, and projects to the auditory cortex and adjacent insular and opercular fields." .

obo:BTO_0003613 a rdfs:Class ;
  rdfs:label "lung squamous cell carcinoma cell" ;
  rdfs:comment "Squamous cell lung cancer, or squamous cell carcinoma of the lung, is one type of non-small cell lung cancer. They usually appear in the central part of the lung or in one of the main airways." ;
  rdfs:subClassOf obo:BTO_0000551 .

obo:BTO_0000450 a rdfs:Class ;
  rdfs:label "fiber" ;
  rdfs:comment "An elongated tapering thick-walled plant cell void at maturity that imparts elasticity, flexibility, and tensile strength." .

obo:BTO_0001944 a rdfs:Class ;
  rdfs:label "H-9 cell" ;
  rdfs:comment "Human acute lymphoblastic leukemia cell line." .

obo:BTO_0005000 a rdfs:Class ;
  rdfs:label "clitoral smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0000858 a rdfs:Class ;
  rdfs:label "mesophyll" ;
  rdfs:comment "The photosynthetic parenchyma between the epidermal layers of a foliage leaf." .

obo:BTO_0006385 a rdfs:Class ;
  rdfs:label "CME-1 cell" ;
  rdfs:comment "Human synovial sarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0006384 .

obo:BTO_0006451 a rdfs:Class ;
  rdfs:label "peritoneal cancer cell" ;
  rdfs:comment "Cancer that forms in the peritoneum." .

obo:BTO_0005170 a rdfs:Class ;
  rdfs:label "keratocyte" ;
  rdfs:comment "The fibroblastic stromal cell of the cornea. Keratocytes produce keratan-sulfate proteoglycans (KSPG), lumican and keratocan to form and sustain proper collagen interfibrillar spacing and fibril diameter of the cornea." .

obo:BTO_0001412 a rdfs:Class ;
  rdfs:label "U-937 cell" ;
  rdfs:comment "Human histiocytic lymphoma established from the pleural effusion of a 37-year-old man with generalized diffuse histiocytic lymphoma in 1974. Cells were described to express markers and properties of monocytes; Human leukemic monocyte lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000104 , obo:BTO_0005583 .

obo:BTO_0004647 a rdfs:Class ;
  rdfs:label "culture condition:phosphonopyruvate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004474 a rdfs:Class ;
  rdfs:label "MDA-MB-231-BAG cell" ;
  rdfs:comment "Human breast cancer cell line." .

obo:BTO_0005386 a rdfs:Class ;
  rdfs:label "U-1752 cell" ;
  rdfs:comment "Continuous lung squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0005839 a rdfs:Class ;
  rdfs:label "HEK-293VnR cell" ;
  rdfs:comment "A HEK293 cell line that stably expresses the alpha v beta 3 integrin, the vitronectin receptor." .

obo:BTO_0000103 a rdfs:Class ;
  rdfs:label "Colon 26-L5 cell" ;
  rdfs:comment "Murine cancer cell line." .

obo:BTO_0003860 a rdfs:Class ;
  rdfs:label "T/C-28a2 cell" ;
  rdfs:comment "Human chondrocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003858 .

obo:BTO_0003278 a rdfs:Class ;
  rdfs:label "V79MZh11B1 cell" ;
  rdfs:comment "Two cell lines derived from V79 chinese hamster cells were established to express human CYP11B1 and CYP11B2. They were called V79MZh11B1 and V79MZh11B2." ;
  rdfs:subClassOf obo:BTO_0001425 .

obo:BTO_0005130 a rdfs:Class ;
  rdfs:label "A2780/R cell" ;
  rdfs:comment "Anthracycline-resistant human ovarian carcinoma cell line." .

obo:BTO_0006415 a rdfs:Class ;
  rdfs:label "ovary clear cell adenocarcinoma cell line" ;
  rdfs:comment "Ovarian clear-cell carcinoma is an uncommon subtype of epithelial ovarian carcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0004850 a rdfs:Class ;
  rdfs:label "bone marrow cell" ;
  rdfs:comment "The soft, fatty, vascular tissue that fills most bone cavities and is the source of red blood cells and many white blood cells." .

obo:BTO_0001107 a rdfs:Class ;
  rdfs:label "preadipocyte" ;
  rdfs:comment "A precursor to an adipocyte." ;
  rdfs:subClassOf obo:BTO_0000443 .

obo:BTO_0005415 a rdfs:Class ;
  rdfs:label "gastroduodenal mucosa" ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0004607 a rdfs:Class ;
  rdfs:label "MDCK-2 cell" ;
  rdfs:comment "Cell line was derived by cloning the parental cell line MDCK." .

obo:BTO_0000995 a rdfs:Class ;
  rdfs:label "paramyeloblast" ;
  rdfs:comment "Myeloblast: a large mononuclear nongranular bone-marrow cell; especially: one that is a precursor of a myelocyte." ;
  rdfs:subClassOf obo:BTO_0000583 .

obo:BTO_0005312 a rdfs:Class ;
  rdfs:label "amoeba" ;
  rdfs:comment "Any of various one-celled aquatic or parasitic protozoans of the genus amoeba or related genera, having no definite form and consisting of a mass of protoplasm containing one or more nuclei surrounded by a flexible outer membrane. It moves by means of pseudopods." ;
  rdfs:subClassOf obo:BTO_0002503 .

obo:BTO_0005879 a rdfs:Class ;
  rdfs:label "PA-TU-8988S cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line; established in 1985 from the liver metastasis of a primary pancreatic adenocarcinoma from a 64-year-old woman; sister cell line of PA-TU-8988T." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0000804 a rdfs:Class ;
  rdfs:label "J-774A.1 cell" ;
  rdfs:comment "Mouse monocytes-macrophages, established from a tumor in a female BALB/c mouse in 1968; cells were described to synthesize lysozyme and interleukin-1 and to have receptors for immunoglobulin and complement." ;
  rdfs:subClassOf obo:BTO_0002279 .

obo:BTO_0004593 a rdfs:Class ;
  rdfs:label "epiblast" ;
  rdfs:comment "The upper layer of the bilaminar embryonic disc present during the second week of a blastula that gives rise to the ectoderm after gastrulation." .

obo:BTO_0004343 a rdfs:Class ;
  rdfs:label "auditory cortex" ;
  rdfs:comment "The region of the cerebral cortex that receives auditory data from the medial geniculate body." .

obo:BTO_0002411 a rdfs:Class ;
  rdfs:label "giant cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000297 .

obo:BTO_0000823 a rdfs:Class ;
  rdfs:label "cerebral gray matter" ;
  rdfs:comment "Brownish-gray nerve tissue, especially of the brain and spinal cord, composed of nerve cell bodies and their dendrites and some supportive tissue." .

obo:BTO_0004789 a rdfs:Class ;
  rdfs:label "ruminal fluid" .

obo:BTO_0005350 a rdfs:Class ;
  rdfs:label "UKRV-Mel-31 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000818 a rdfs:Class ;
  rdfs:label "spinal column" ;
  rdfs:comment "The series of articulated vertebrae, separated by intervertebral disks and held together by muscles and tendons, that extends from the cranium to the coccyx or the end of the tail, encasing the spinal cord and forming the supporting axis of the body; the spine." .

obo:BTO_0003741 a rdfs:Class ;
  rdfs:label "T-47 cell" ;
  rdfs:comment "Human breast carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0000274 a rdfs:Class ;
  rdfs:label "apical bud" ;
  rdfs:comment "The uppermost bud on a stem." ;
  rdfs:subClassOf obo:BTO_0000158 .

obo:BTO_0002548 a rdfs:Class ;
  rdfs:label "BT-549 cell" ;
  rdfs:comment "Human breast ductal carcinoma cell line. The BT-549 line was isolated in 1978 by W.G. Coutinho and E.Y. Lasfargues. Source tissue consisted of a papillary, invasive ductal tumor which had metastasized to 3 of 7 regional lymph nodes." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0004736 a rdfs:Class ;
  rdfs:label "B-CPAP cell" ;
  rdfs:comment "Human papillary thyroid carcinoma derived cell line." ;
  rdfs:subClassOf obo:BTO_0003210 .

obo:BTO_0005727 a rdfs:Class ;
  rdfs:label "UOK-262 cell" ;
  rdfs:comment "Fumarate hydratase deficient hereditary leiomyomatosis renal cell carcinoma, derived from a patient having aggressive HLRCC-associated recurring kidney cancer." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0005932 a rdfs:Class ;
  rdfs:label "SUM cell" ;
  rdfs:comment "Ten SUM cell lines derived in Steve Ethiers lab while present at the University of Michigan are available for purchase. Each cell line, from a single patient, represents a different subtype of breast cancer. All of the currently known oncogenes with altered expression patterns in breast cancer, in various combinations, are represented and characterized in the SUM lines." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0005518 a rdfs:Class ;
  rdfs:label "PC-9 cell" ;
  rdfs:comment "A cell line derived from human lung adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0001582 a rdfs:Class ;
  rdfs:label "ES-D3 cell" ;
  rdfs:comment "Mus musculus pluripotent embryonic stem cell line." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0003781 a rdfs:Class ;
  rdfs:label "RCC 786-O cell" ;
  rdfs:comment "Human renal cell adenocarcinoma cell line, established from a 58 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0005619 a rdfs:Class ;
  rdfs:label "cladode" ;
  rdfs:comment "A flattened organ arising from the stem of a plant. These often replace the leaves in photosynthetic function, as leaves in such plants (for example asparagus, butchers broom) are typically reduced to scales." ;
  rdfs:subClassOf obo:BTO_0001243 .

obo:BTO_0004340 a rdfs:Class ;
  rdfs:label "culture condition:high copper medium-grown cell" ;
  rdfs:comment "The concentration of copper is above 1 micromol of Cu per mg of cell protein." ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006377 a rdfs:Class ;
  rdfs:label "AHH-1 cell" ;
  rdfs:comment "B-lymphoblast cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0006501 a rdfs:Class ;
  rdfs:label "natural killer T cell" ;
  rdfs:comment "A heterogeneous group of T cells that share properties of both T cells and natural killer cells." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0004682 a rdfs:Class ;
  rdfs:label "gential atrium" ;
  rdfs:comment "A common chamber receiving openings of male, female, and accessory organs." .

obo:BTO_0005313 a rdfs:Class ;
  rdfs:label "nerve sheath" ;
  rdfs:comment "Any of several types of coatings or coverings for nerve fibers and nerve tracts. Kinds of nerve sheaths include medullary, myelin, and neurilemma." .

obo:RO_0002566 a rdf:Property ;
  rdfs:label "causually influences" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0001929 a rdfs:Class ;
  rdfs:label "ATDC-5 cell" ;
  rdfs:comment "Clonal mouse embryonic cell line." ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0006014 a rdfs:Class ;
  rdfs:label "axillary bud meristem" ;
  rdfs:comment "A shoot system meristem formed in an axil." ;
  rdfs:subClassOf obo:BTO_0000852 .

obo:BTO_0001836 a rdfs:Class ;
  rdfs:label "thymic epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003040 a rdfs:Class ;
  rdfs:label "uterine adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001555 .

obo:BTO_0004658 a rdfs:Class ;
  rdfs:label "imaginal disc" ;
  rdfs:comment "A group of undifferentiated cells in an insect larva that develops into a specific adult structure." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0005902 a rdfs:Class ;
  rdfs:label "DiFi cell" ;
  rdfs:comment "Human colorectal cancer cell line; established from a familial adenomatous polyposis patient with extracolonic features characteristic of the Gardner syndrome." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0003885 a rdfs:Class ;
  rdfs:label "Hs-578T cell" ;
  rdfs:comment "Human breast cancer cell line; established from a 74-years-old caucasian female with infiltrating ductal carcinoma." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0001852 a rdfs:Class ;
  rdfs:label "cerebrovascular endothelium" ;
  rdfs:subClassOf obo:BTO_0001853 .

obo:BTO_0004510 a rdfs:Class ;
  rdfs:label "cystadenocarcinoma cell" ;
  rdfs:comment "A malignant neoplasm derived from glandular epithelium, in which cystic accumulations of retained secretions are formed. Cystadenocarcinomas develop frequently in the ovaries, where pseudomucinous and serous types are recognised." ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0000577 a rdfs:Class ;
  rdfs:label "Morris hepatoma 3924A cell" ;
  rdfs:comment "Rat Morris hepatoma 3924A cell." ;
  rdfs:subClassOf obo:BTO_0001080 .

obo:BTO_0003008 a rdfs:Class ;
  rdfs:label "NCI-H226 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0000403 a rdfs:Class ;
  rdfs:label "mastocytoma cell line" .

obo:BTO_0003490 a rdfs:Class ;
  rdfs:label "vestibulocochlear nerve" ;
  rdfs:comment "The vestibulocochlear nerve is responsible for the sense of hearing and balance (body position sense). Lesions of the eighth nerve can result in deafness, tinnitus, dizziness, vertigo and vomiting." ;
  rdfs:subClassOf obo:BTO_0001104 .

obo:BTO_0003520 a rdfs:Class ;
  rdfs:label "HSC-T6 cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0004714 a rdfs:Class ;
  rdfs:label "palatine tonsil" ;
  rdfs:comment "Palatine tonsils are the tonsils that can be seen on the left and right sides at the back of the throat." ;
  rdfs:subClassOf obo:BTO_0001387 .

obo:BTO_0003730 a rdfs:Class ;
  rdfs:label "TUHR-14TKB cell" ;
  rdfs:comment "Human renal cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0004257 a rdfs:Class ;
  rdfs:label "extraosseus Ewing's sarcoma cell" ;
  rdfs:comment "Tumor growing outside of the bone." ;
  rdfs:subClassOf obo:BTO_0004255 .

obo:BTO_0000593 a rdfs:Class ;
  rdfs:label "Yoshida AH-130 cell" ;
  rdfs:comment "Undifferentiated, fast growing rat ascites hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0001404 .

obo:BTO_0003501 a rdfs:Class ;
  rdfs:label "OVSAYO cell" ;
  rdfs:comment "Human ovarian carcinoma cell line from clear cell adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0006415 .

obo:BTO_0004288 a rdfs:Class ;
  rdfs:label "culture condition:starch-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003148 a rdfs:Class ;
  rdfs:label "culture condition:milk-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005687 a rdfs:Class ;
  rdfs:label "culture condition:D-tagatose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003100 a rdfs:Class ;
  rdfs:label "external female genital organ" ;
  rdfs:comment "The external genitalia of the female, comprising the pudendum femininum, clitoris, and urethra." .

obo:BTO_0002392 a rdfs:Class ;
  rdfs:label "SGC-7901 cell" ;
  rdfs:comment "Human gastric cancer cell line." .

obo:BTO_0001333 a rdfs:Class ;
  rdfs:label "sympathetic ganglion" ;
  rdfs:comment "Any of the aggregations of cell bodies of primarily adrenergic neurons of the sympathetic nervous system, including the ganglia of the sympathetic trunks, the intermediate ganglia, the prevertebral ganglia, and some ganglionic cells in the autonomic plexuses." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0000815 a rdfs:Class ;
  rdfs:label "MDA-MB-231 cell" ;
  rdfs:comment "Human caucasian, breast adenocarcinoma cell line; established from a 51-years-old caucasian female; Tissue: breast; Tumor: adenocarcinoma; Derived from: pleural effusion." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0002122 a rdfs:Class ;
  rdfs:label "cardiac stomach" ;
  rdfs:comment "In starfishes the cardiac stomach is connected to a pyloric stomach which is located above it. Food can be brought into the stomach through the mouth or, in many species, the cardiac stomach can be extended out through the mouth to digest food outside the body. Suspension-feeding starfish use their tube feet to pass food to the mouth." ;
  rdfs:subClassOf obo:BTO_0001806 .

obo:BTO_0000562 a rdfs:Class ;
  rdfs:label "heart" ;
  rdfs:comment "1: A hollow muscular organ of vertebrate animals that by its rhythmic contraction acts as a force pump maintaining the circulation of the blood. 2: A structure in an invertebrate animal functionally analogous to the vertebrate heart." .

obo:BTO_0002784 a rdfs:Class ;
  rdfs:label "corpus albicans" ;
  rdfs:comment "White fibrous tissue that replaces the regressing corpus luteum in the human ovary in the latter half of pregnancy, or soon after ovulation when pregnancy does not supervene." ;
  rdfs:subClassOf obo:BTO_0000389 .

obo:BTO_0001681 a rdfs:Class ;
  rdfs:label "anal sac" ;
  rdfs:comment "In carnivores, either of two sacs found between the internal and external anal sphincters, lined with sebaceous glands and in some species with apocrine glands." .

obo:BTO_0006065 a rdfs:Class ;
  rdfs:label "BT-474-LR cell" ;
  rdfs:comment "Lapatinib-resistant subline of BT-474 cell line." .

obo:BTO_0001975 a rdfs:Class ;
  rdfs:label "placental cell line" .

obo:BTO_0003770 a rdfs:Class ;
  rdfs:label "A-427 cell" ;
  rdfs:comment "Human lung carcinoma cell line; established from the lung carcinoma of a 52-year-old Caucasian man." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0002951 a rdfs:Class ;
  rdfs:label "624 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002559 a rdfs:Class ;
  rdfs:label "INER-51 cell" ;
  rdfs:comment "INER-51 is a NSCLC cell line established from pleural effusion of patient diagnosed with primary lung cancer without previous chemotherapy treatment." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0003609 a rdfs:Class ;
  rdfs:label "culture condition:dicyclopropylketone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002919 a rdfs:Class ;
  rdfs:label "retinoblastoma cell line" ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0004962 a rdfs:Class ;
  rdfs:label "acute megakaryocytic leukemia cell" ;
  rdfs:comment "Acute megakaryocytic leukemia is a rare subtype of acute myeloid leukemia evolving from primitive megakaryoblasts." ;
  rdfs:subClassOf obo:BTO_0001271 , obo:BTO_0001549 .

obo:BTO_0002565 a rdfs:Class ;
  rdfs:label "OVCA-432 cell" ;
  rdfs:comment "Human epithelial ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0002740 a rdfs:Class ;
  rdfs:label "INR1G9 cell" ;
  rdfs:comment "InR1G9 cells are glucagon-producing islet cells, derived from a hamster glucagonoma." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0006103 a rdfs:Class ;
  rdfs:label "quiescent skeletal muscle satellite cell" ;
  rdfs:comment "A skeletal muscle satellite cell that is mitotically quiescent. These cells are wedge shaped and have a large nuclear to cytoplasmic ratio with few organelles, a small nucleus and condensed interphase chromatin. Satellite cells typically remain in this state until activated following muscle damage." ;
  rdfs:subClassOf obo:BTO_0005787 .

obo:BTO_0000560 a rdfs:Class ;
  rdfs:label "haustorial mother cell" ;
  rdfs:comment "When the tip of the infection hypha contacts a host cell wall, a haustorial mother cell (HM) is formed from which the haustorium (H) invades the host cell." .

obo:BTO_0004794 a rdfs:Class ;
  rdfs:label "TC2 cell" ;
  rdfs:comment "Immunized T-lymphocytes which can directly destroy appropriate target cells. These CD8-positive cells are distinct from natural killer cells and from KILLER CELLS mediating antibody-dependent cell cytotoxicity. There are two effector phenotypes: TC1 and TC2." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0002032 a rdfs:Class ;
  rdfs:label "T-84 cell" ;
  rdfs:comment "Human colon carcinoma. Morphology: epithelial-like; Species: human 72 years old; Tissue: colon; Tumor: carcinoma; Derived from: metastasis to lung." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0004433 a rdfs:Class ;
  rdfs:label "HET-1A cell" ;
  rdfs:comment "Human esophageal cell line; derived in 1986 from human esophageal autopsy tissue by transfection with plasmid pRSV-T consisting of the RSV-LTR promoter and the sequence encoding the simian virus 40 large T-antigen." ;
  rdfs:subClassOf obo:BTO_0003640 .

obo:BTO_0005608 a rdfs:Class ;
  rdfs:label "pupal wing" ;
  rdfs:subClassOf obo:BTO_0001143 .

obo:BTO_0004261 a rdfs:Class ;
  rdfs:label "peripheral primitive neuroectodermal tumor cell" ;
  rdfs:comment "One of a remarkable group of tumors that originate in cells from the primitive neural crest and share the same reciprocal translocation between chromosomes 11 and 22 and the same patterns of biochemical and oncogene expression. Some primitive neuroectodermal tumors (PNETs) occur in the brain while others (the peripheral PNETs) occur in sites outside the brain such as in the extremities, pelvis, and the chest wall." ;
  rdfs:subClassOf obo:BTO_0002372 , obo:BTO_0004255 .

obo:BTO_0006310 a rdfs:Class ;
  rdfs:label "WIF-B9/R cell" ;
  rdfs:comment "Subline of WIF-B9 cell line, obtained by exposure to progressively increasing cisplatin concentrations and double sub-clonal selection." .

obo:BTO_0000054 a rdfs:Class ;
  rdfs:label "albumen gland" ;
  rdfs:comment "The posterior oviduct opens into the large white albumen gland which adds a layer of albumen to the zygote before it reaches the egg capsule gland." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0002594 a rdfs:Class ;
  rdfs:label "DDT1-MF-2 cell" ;
  rdfs:comment "Syrian golden hamster (Mesocricetus auratus) ductus deferens smooth muscle cell line established from a leiomyosarcoma." ;
  rdfs:subClassOf obo:BTO_0002595 .

obo:BTO_0004021 a rdfs:Class ;
  rdfs:label "HLaC-79 cell" ;
  rdfs:comment "Human larynx squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004019 .

obo:BTO_0003833 a rdfs:Class ;
  rdfs:label "buccal mucosa" ;
  rdfs:comment "The inner lining of the cheeks and lips." .

obo:BTO_0000757 a rdfs:Class ;
  rdfs:label "plasmodium" ;
  rdfs:comment "Multinucleate mass of protoplasm bounded only by a plasma membrane; the main vegetative form of acellular slime moulds." .

obo:BTO_0002649 a rdfs:Class ;
  rdfs:label "B35 cell" ;
  rdfs:comment "Rattus norvegicus (rat) central nervous system (CNS) neuroblastoma cell line. Rats were inoculated with N-nitrosoethylurea (NEU) 15 days after conception. Tumors found in the central nervous system (CNS) 4 to 10 months after birth were excised, minced, adapted to culture and cloned." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001260 a rdfs:Class ;
  rdfs:label "smooth muscle" ;
  rdfs:comment "Muscle tissue that lacks cross striations, that is made up of elongated spindle-shaped cells having a central nucleus, and that is found in vertebrate visceral structures (as the stomach and bladder) as thin sheets performing functions not subject to conscious control by the mind and in all or most of the musculature of invertebrates other than arthropods." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0004698 a rdfs:Class ;
  rdfs:label "regio oralis" ;
  rdfs:comment "The region of the face including the lips and mouth." .

obo:BTO_0002789 a rdfs:Class ;
  rdfs:label "ovarian low malignant potential tumor cell" ;
  rdfs:comment "A condition in which cells that may become Cancer form in the thin layer of tissue that covers an ovary. In this condition, tumor cells rarely spread outside of the ovary." ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0003941 a rdfs:Class ;
  rdfs:label "MDA-MB-435S cell" ;
  rdfs:comment "This cell line was originally described as a spindle shaped variant of the parental MDA-MB-435 strain isolated from the pleural effusion of a 31 year old female with metastatic, ductal adenocarcinoma of the breast. However, recent studies have reported that this line is cross-contaminated with is the M14 melanoma line." .

obo:BTO_0000588 a rdfs:Class ;
  rdfs:label "LL/2 (LLC1) cell" ;
  rdfs:comment "Mouse C57BL Lewis lung carcinoma cell line." .

obo:BTO_0001315 a rdfs:Class ;
  rdfs:label "sublingual gland" ;
  rdfs:comment "Gland situated or administered under the tongue; the smallest of the three salivary glands, occurring in pairs, predominantly mucous in type, and draining into the oral cavity through 10 to 30 sublingual ducts." ;
  rdfs:subClassOf obo:BTO_0001203 .

obo:BTO_0004942 a rdfs:Class ;
  rdfs:label "HAL-01 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0003245 a rdfs:Class ;
  rdfs:label "aortic endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001854 .

obo:BTO_0001716 a rdfs:Class ;
  rdfs:label "eggshell" ;
  rdfs:comment "The hard exterior covering of an egg." .

obo:BTO_0005834 a rdfs:Class ;
  rdfs:label "infectious granuloma cell" ;
  rdfs:comment "One due to a specific microorganism, as tubercle bacilli." ;
  rdfs:subClassOf obo:BTO_0005835 .

obo:BTO_0000894 a rdfs:Class ;
  rdfs:label "myelin" ;
  rdfs:comment "A soft white somewhat fatty material that forms a thick myelin sheath about the protoplasmic core of a myelinated nerve fiber." .

obo:BTO_0001676 a rdfs:Class ;
  rdfs:label "PC-12D cell" ;
  rdfs:comment "A cell line which originated from a pheochromocytoma in rat adrenal medulla." .

obo:BTO_0004380 a rdfs:Class ;
  rdfs:label "parahippocampal gyrus" ;
  rdfs:comment "A long convolution on the medial surface of the temporal lobe, forming the lower part of the fornicate gyrus, extending from behind the splenium corporis callosi forward along the dentate gyrus of the hippocampus from which it is demarcated by the hippocampal fissure. The anterior extreme of the gyrus curves back upon itself, forming the uncus, the major location of the olfactory cortex." .

obo:BTO_0005532 a rdfs:Class ;
  rdfs:label "plant zygote" ;
  rdfs:comment "The initial cell formed when two gamete cells are joined by means of sexual reproduction. In land plants, the zygote is formed within a chamber called the archegonium." ;
  rdfs:subClassOf obo:BTO_0001233 .

obo:RO_0000053 a rdf:Property ;
  rdfs:label "bearer of" ;
  rdfs:range <https://w3id.org/linkml/Any> .

obo:BTO_0005271 a rdfs:Class ;
  rdfs:label "anterior hypodermis" ;
  rdfs:comment "Three concentric rings of hypodermal cells (hyp 1, hyp 2 and hyp 3) constitute the hypodermis of the extreme anterior of the worms head." .

obo:BTO_0006157 a rdfs:Class ;
  rdfs:label "olivocerebellar fiber system" ;
  rdfs:comment "The olivocerebellar tract are neural fibers which originate at the olivary nucleus and pass out through the hilum and decussate with those from the opposite olive in the raphe nucleus, then as internal arcuate fibers they pass partly through and partly around the opposite olive and enter the inferior peduncle to be distributed to the cerebellar hemisphere of the opposite side from which they arise." .

obo:BTO_0005676 a rdfs:Class ;
  rdfs:label "vaginal mucosa" ;
  rdfs:comment "The mucosal layer of the vagina." ;
  rdfs:subClassOf obo:BTO_0000243 .

obo:BTO_0004027 a rdfs:Class ;
  rdfs:label "94-H48 cell" ;
  rdfs:comment "A highly metastatic, macrophage-melanoma experimental fusion hybrid cell line." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0004300 a rdfs:Class ;
  rdfs:label "mammary epithelial cell" .

obo:BTO_0003141 a rdfs:Class ;
  rdfs:label "true leaf" ;
  rdfs:comment "A leaf typical of a plant that appears subsequent to the cotyledons." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0000747 a rdfs:Class ;
  rdfs:label "sporangiospore" ;
  rdfs:comment "A spore that develops within a sporangium." .

obo:BTO_0004917 a rdfs:Class ;
  rdfs:label "ZR-78.1 cell" ;
  rdfs:comment "Strain ZR-78.1 is a hypoxanthine phosphoribosyltransferase-deficient and ouabain-resistant subclone of ZR-78." .

obo:BTO_0001445 a rdfs:Class ;
  rdfs:label "tail bud" ;
  rdfs:comment "The rapidly proliferating mass of cells at the caudal extremity of the embryo; remnant of the primitive node." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0000237 a rdfs:Class ;
  rdfs:label "cerebrospinal fluid" ;
  rdfs:comment "The serumlike fluid that circulates through the ventricles of the brain, the cavity of the spinal cord, and the subarachnoid space, functioning in shock absorption. A liquid that is comparable to serum but contains less dissolved material, that is secreted from the blood into the lateral ventricles of the brain by the choroid plexus, circulates through the ventricles to the spaces between the meninges about the brain and spinal cord, and is resorbed into the blood through the subarachnoid sinuses, and that serves chiefly to maintain uniform pressure within the brain and spinal cord." .

obo:BTO_0006054 a rdfs:Class ;
  rdfs:label "SJNB-6 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0004373 a rdfs:Class ;
  rdfs:label "ventral posterior nucleus" ;
  rdfs:comment "The region traditionally described as the ventroposterior nucleus (VP) is a composite of VP proper and parts of the ventroposterior inferior nucleus." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0000100 a rdfs:Class ;
  rdfs:label "astrocytoma cell" ;
  rdfs:comment "A tumor cell composed of astrocytes; it is the most common type of primary brain tumor and is also found throughout the central nervous system. One classification groups astrocytomas according to their histologic appearance and distinguishes pilocytic, protoplasmic, gemistocytic, and fibrillary types. Another classification groups them in order of increasing malignancy as Grade I, Grade II, Grade III, and Grade IV types." ;
  rdfs:subClassOf obo:BTO_0000526 .

obo:BTO_0000774 a rdfs:Class ;
  rdfs:label "lymphoblastoma cell" ;
  rdfs:comment "A cell of any of several diseases of lymph nodes marked by the formation of tumorous masses composed of mature or immature lymphocytes." .

obo:BTO_0000196 a rdfs:Class ;
  rdfs:label "thyroid cancer cell" ;
  rdfs:comment "Cancer cell of the thyroid gland." .

obo:BTO_0002024 a rdfs:Class ;
  rdfs:label "squamous cell carcinoma cell line" .

obo:BTO_0002706 a rdfs:Class ;
  rdfs:label "ventral septal area" .

obo:BTO_0003581 a rdfs:Class ;
  rdfs:label "renal glomerular cell line" .

obo:BTO_0002284 a rdfs:Class ;
  rdfs:label "MIN-6 cell" ;
  rdfs:comment "The murine insulinoma MIN6 cell line derived from in vivo immortalized insulin-secreting pancreatic beta cells." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0001228 a rdfs:Class ;
  rdfs:label "seedling" ;
  rdfs:comment "The embryonic product of the germination of a seed. The young shoot and root axis." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0005413 a rdfs:Class ;
  rdfs:label "culture condition:urea-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002821 a rdfs:Class ;
  rdfs:label "HOG cell" ;
  rdfs:comment "Human oligodendroglioma cell line." ;
  rdfs:subClassOf obo:BTO_0002820 .

obo:BTO_0000356 a rdfs:Class ;
  rdfs:label "breast cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000816 .

obo:BTO_0002601 a rdfs:Class ;
  rdfs:label "RAW/LR5 cell" ;
  rdfs:comment "Cell line derived from the murine monocyte/macrophage RAW264.7 cell line." ;
  rdfs:subClassOf obo:BTO_0003292 .

obo:BTO_0002837 a rdfs:Class ;
  rdfs:label "PY-41 cell" ;
  rdfs:comment "Murine endothelial cell line; established from hemangioma." ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0003357 a rdfs:Class ;
  rdfs:label "ARPE cell" ;
  rdfs:comment "Adult retinal pigment epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002334 .

obo:BTO_0003137 a rdfs:Class ;
  rdfs:label "5637 cell" ;
  rdfs:comment "Human urinary bladder carcinoma cell line; established from the primary bladder carcinoma of a 68-year-old man in 1974." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0006321 a rdfs:Class ;
  rdfs:label "GC-1 spg cell" ;
  rdfs:comment "Mouse testis type B spermatogonia cell line." ;
  rdfs:subClassOf obo:BTO_0004229 .

obo:BTO_0003844 a rdfs:Class ;
  rdfs:label "inferior olivary nucleus" ;
  rdfs:comment "The inferior olivary nucleus is the largest nucleus situated in the olivary body, part of the medulla oblongata." .

obo:BTO_0005156 a rdfs:Class ;
  rdfs:label "Caco-2/BBe cell" ;
  rdfs:comment "The C2BBe1 (brush border expressing) cell line was cloned in 1988 from the Caco-2 cell line by limiting dilution." .

obo:BTO_0004485 a rdfs:Class ;
  rdfs:label "OV-MZ-10 cell" ;
  rdfs:comment "Human ovarian cell line." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0006236 a rdfs:Class ;
  rdfs:label "culture condition:rice hull-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005256 a rdfs:Class ;
  rdfs:label "W001C cell" ;
  rdfs:comment "Wild carrot cell culture line of Daucus carota, Queen Anne`s lace." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0003531 a rdfs:Class ;
  rdfs:label "M1-4HSC cell" ;
  rdfs:comment "Immortalized murine hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0001488 a rdfs:Class ;
  rdfs:label "endocrine gland" ;
  rdfs:comment "Any of various glands producing hormonal secretions that pass directly into the bloodstream. The endocrine glands include the thyroid, parathyroids, anterior and posterior pituitary, pancreas, adrenals, pineal, and gonads." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0002956 a rdfs:Class ;
  rdfs:label "Mel501 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003180 a rdfs:Class ;
  rdfs:label "HeLa-80 cell" ;
  rdfs:comment "A strain of HeLa cells that proliferates under 80% O2, termed HeLa-80, has been derived from wildtype HeLa cells (HeLa-20) by selection for resistance to stepwise increases of oxygen partial pressure." .

obo:BTO_0005062 a rdfs:Class ;
  rdfs:label "M93-047 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005166 a rdfs:Class ;
  rdfs:label "HKESC-3 cell" ;
  rdfs:comment "Human esophageal cancer cell line, established from a well-differentiated ESCC of a 74-year-old Chinese man from Hong Kong." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0000378 a rdfs:Class ;
  rdfs:label "elytron" ;
  rdfs:comment "One of the anterior wings in beetles and some other insects that serve to protect the posterior pair of functional wings." ;
  rdfs:subClassOf obo:BTO_0001463 .

obo:BTO_0003109 a rdfs:Class ;
  rdfs:label "CaSki cell" ;
  rdfs:comment "Human cervical carcinoma cell line; established from a 40 years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0001967 .

obo:BTO_0003228 a rdfs:Class ;
  rdfs:label "SK-LC-8 cell" ;
  rdfs:comment "Human lung carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0004016 a rdfs:Class ;
  rdfs:label "laterodorsal tegmental nucleus" ;
  rdfs:comment "A nucleus situated in the brainstem, spanning the midbrain tegmentum and the pontine tegmentum." ;
  rdfs:subClassOf obo:BTO_0000146 .

obo:BTO_0005181 a rdfs:Class ;
  rdfs:label "RzM6-LC cell" ;
  rdfs:comment "HCV-expressing human hepatoblastoma-derived cell line." ;
  rdfs:subClassOf obo:BTO_0001664 .

obo:BTO_0002729 a rdfs:Class ;
  rdfs:label "ovarian serous carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0000084 a rdfs:Class ;
  rdfs:label "vermiform appendix" ;
  rdfs:comment "A narrow blind tube usually about three or four inches (7.6 to 10.2 centimeters) long that extends from the cecum in the lower right-hand part of the abdomen, has much lymphoid wall tissue, normally communicates with the cavity of the cecum, and represents an atrophied terminal part of the cecum." .

obo:BTO_0004953 a rdfs:Class ;
  rdfs:label "MGC-803 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0001693 a rdfs:Class ;
  rdfs:label "modiolus" ;
  rdfs:comment "The central pillar or columella of the cochlea." .

obo:BTO_0005543 a rdfs:Class ;
  rdfs:label "uterine epithelial cell" .

obo:BTO_0001755 a rdfs:Class ;
  rdfs:label "masseter" ;
  rdfs:comment "A thick muscle in the cheek that closes the jaws during chewing." ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0003415 a rdfs:Class ;
  rdfs:label "conjunctiva" ;
  rdfs:comment "The mucous membrane that lines the inner surface of the eyelids and is continued over the forepart of the eyeball." .

obo:BTO_0005141 a rdfs:Class ;
  rdfs:label "rheumatoid arthritis disease specific giant cell" ;
  rdfs:comment "The term giant cell arteritis is often used because when one looks at biopsies of inflamed temporal arteries under a microscope, one often sees large or giant cells." .

obo:BTO_0004834 a rdfs:Class ;
  rdfs:label "middle frontal gyrus" ;
  rdfs:comment "It makes up about one-third of the frontal lobe of the human brain. A gyrus is one of the prominent bumps or ridges on the surface of the human brain. The middle frontal gyrus, like the inferior frontal gyrus and the superior frontal gyrus, is more of a region than a true gyrus. The borders of the middle frontal gyrus are the inferior frontal sulcus below; the superior frontal sulcus above; and the precentral sulcus behind." .

obo:BTO_0000970 a rdfs:Class ;
  rdfs:label "osteosarcoma cell" ;
  rdfs:comment "A cell of a sarcoma derived from bone or containing bone tissue." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0003404 a rdfs:Class ;
  rdfs:label "hyperpallium densocellulare" .

obo:BTO_0005424 a rdfs:Class ;
  rdfs:label "melan-a Hm cell" ;
  rdfs:comment "HERmrk-transgenic melanocytes that transgenically express a chimeric protein consisting of an extracellular EGFR- and an intracellular Xmrk (an oncogene) domain." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0000367 a rdfs:Class ;
  rdfs:label "duodenal mucosa" ;
  rdfs:comment "The duodenal mucosa (and that of the rest of the intestines) is classified as simple columnar. The cells rest on a basal lamina, which you may be able to make out in this image as a bright line underneath the cells. They sit over the lamina propria, the loose collagenous CT, filled with cells, that constitutes the core of each villus." ;
  rdfs:subClassOf obo:BTO_0000642 .

obo:BTO_0004823 a rdfs:Class ;
  rdfs:label "NCI-H1355 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line from a pleural effusion stage 4." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0002136 a rdfs:Class ;
  rdfs:label "NB-4 cell" ;
  rdfs:comment "Human acute promyelocytic leukemia cell line; established from the bone marrow of a 23-year-old woman with acute promyelocytic leukemia (APL = AML FAB M3) in second relapse in 1989." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004513 a rdfs:Class ;
  rdfs:label "Sertoli cell line" ;
  rdfs:subClassOf obo:BTO_0004229 .

obo:BTO_0006269 a rdfs:Class ;
  rdfs:label "ACI-45 cell" ;
  rdfs:comment "Uterine carcinosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0006270 .

obo:BTO_0004354 a rdfs:Class ;
  rdfs:label "postcentral gyrus" ;
  rdfs:comment "A gyrus of the parietal lobe located just posterior to the central sulcus, lying parallel to the precentral gyrus of the temporal lobe, and comprising the somatosensory cortex." .

obo:BTO_0005133 a rdfs:Class ;
  rdfs:label "CCD-986Sk cell" ;
  rdfs:comment "Human normal skin fibroblast cell line. The line was established from skin taken from normal breast tissue removed during breast reduction mammoplasty." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001276 a rdfs:Class ;
  rdfs:label "pollen tube" ;
  rdfs:comment "The slender tube formed by the pollen grain that penetrates an ovule and releases the male gametes." .

obo:BTO_0005594 a rdfs:Class ;
  rdfs:label "metastatic renal cell carcinoma cell" ;
  rdfs:comment "Metastatic renal cell carcinoma is the spread of the primary renal cell carcinoma from the kidney to other organs." ;
  rdfs:subClassOf obo:BTO_0000037 .

obo:BTO_0005233 a rdfs:Class ;
  rdfs:label "culture condition:dextrose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000603 a rdfs:Class ;
  rdfs:label "pre-B acute lymphoblastic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0000317 a rdfs:Class ;
  rdfs:label "caulonema" ;
  rdfs:comment "The secondary, bud-generating part of the filamentous moss protonema, typically reddish-brown, having few chloroplasts and consisting of long cells with oblique end walls." .

obo:BTO_0004314 a rdfs:Class ;
  rdfs:label "GM16088 cell" ;
  rdfs:comment "DNA ligase IV-deficient human primary fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0004676 a rdfs:Class ;
  rdfs:label "cerebral peduncle" ;
  rdfs:comment "Either of two large bundles of nerve fibers passing from the pons forward and outward to form the main connection between the cerebral hemispheres and the spinal cord." ;
  rdfs:subClassOf obo:BTO_0002191 .

obo:BTO_0000752 a rdfs:Class ;
  rdfs:label "lymph vessel" ;
  rdfs:comment "A vessel that contains or conveys lymph, that originates as an interfibrillar or intercellular cleft or space in a tissue or organ, and that if small has no distinct walls or walls composed only of endothelial cells and if large resembles a vein in structure." .

obo:BTO_0003198 a rdfs:Class ;
  rdfs:label "SK-RC-35 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0004405 a rdfs:Class ;
  rdfs:label "3D5 cell" ;
  rdfs:comment "Human B-cell line." ;
  rdfs:subClassOf obo:BTO_0001522 .

obo:BTO_0005448 a rdfs:Class ;
  rdfs:label "ARL-15C1 cell" ;
  rdfs:comment "Non-tumorigenic rat liver cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0003855 a rdfs:Class ;
  rdfs:label "BL-70 cell" ;
  rdfs:comment "Human Burkitt lymphoma cell line; established from the tumor tissue at relapse of a 16-year-old Caucasian boy with Burkitt lymphoma." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0004809 a rdfs:Class ;
  rdfs:label "CHO-91 cell" ;
  rdfs:comment "CHO-K1 cells were stably transfected with one or more plasmids for expression of gp91phox." .

obo:BTO_0000185 a rdfs:Class ;
  rdfs:label "medullary breast carcinoma cell" ;
  rdfs:comment "A cell of a rare type of breast cancer that often can be treated successfully. It is marked by lymphocytes (a type of white blood cell) in and around the tumor that can be seen when viewed under a microscope." ;
  rdfs:subClassOf obo:BTO_0000150 , obo:BTO_0000191 .

obo:BTO_0002306 a rdfs:Class ;
  rdfs:label "ARO cell" ;
  rdfs:comment "Human anaplastic thyroid cancer cell line." .

obo:BTO_0004165 a rdfs:Class ;
  rdfs:label "meibomian gland" ;
  rdfs:comment "One of the long sebaceous glands of the eyelids that discharge a fatty secretion which lubricates the eyelids." ;
  rdfs:subClassOf obo:BTO_0001980 .

obo:BTO_0003042 a rdfs:Class ;
  rdfs:label "J-774.1 cell" ;
  rdfs:comment "Mouse monocyte/macrophage cell line." ;
  rdfs:subClassOf obo:BTO_0002279 .

obo:BTO_0006194 a rdfs:Class ;
  rdfs:label "aortic arch" ;
  rdfs:comment "The aortic arch is the part of the aorta between the ascending and descending aorta." ;
  rdfs:subClassOf obo:BTO_0000135 .

obo:BTO_0002010 a rdfs:Class ;
  rdfs:label "tunica externa vasorum" ;
  rdfs:comment "External coat of vessels: the outer, fibroelastic coat of the blood vessels." .

obo:BTO_0004524 a rdfs:Class ;
  rdfs:label "germinal epithelium" ;
  rdfs:comment "Epithelium covering the embryonic genital ridges and the gonads that develop from them." ;
  rdfs:subClassOf obo:BTO_0000416 , obo:BTO_0000514 .

obo:BTO_0001172 a rdfs:Class ;
  rdfs:label "reticulate body" ;
  rdfs:comment "The noninfectious intracellular form of Chlamydia, consisting of fibrillar nuclear material and more ribosomes that occur in elementary bodies, surrounded by a thin trilaminar wall. Reticulate bodies reproduce within vacuoles in the host cell; following the reproductive cycle, reticulate bodies condense into elementary bodies, which are released from the cell." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0000656 a rdfs:Class ;
  rdfs:label "iris sphincter muscle" ;
  rdfs:comment "Circular fibers of the iris, innervated by the ciliary nerves (parasympathetic), and acting to contract the pupil." ;
  rdfs:subClassOf obo:BTO_0000655 .

obo:BTO_0005603 a rdfs:Class ;
  rdfs:label "posterior paracentral gyrus" ;
  rdfs:comment "The posterior part of the paracentral lobule; the medial continuation of the primary somatosensory cortex (postcentral gyrus) in which sensory input from the thigh, leg, and foot are represented." .

obo:BTO_0002703 a rdfs:Class ;
  rdfs:label "cortical amygdaloid nucleus" ;
  rdfs:comment "A nucleus in the corticomedial part of the amygdaloid body." .

obo:BTO_0000548 a rdfs:Class ;
  rdfs:label "prostate gland lobe" ;
  rdfs:comment "The prostate consists of a median lobe and two lateral lobes." .

obo:BTO_0006478 a rdfs:Class ;
  rdfs:label "Bm7Brm cell" ;
  rdfs:comment "Lung cancer cells with progressive migration ability." .

obo:BTO_0005435 a rdfs:Class ;
  rdfs:label "culture condition:succinate-glucose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006154 a rdfs:Class ;
  rdfs:label "renal proximal tubule epithelial cell" .

obo:BTO_0004928 a rdfs:Class ;
  rdfs:label "SUM-159PT cell" ;
  rdfs:comment "Estrogen independent human breast cancer cell line with epithelial origin. SUM-159PT was derived from a primary human anaplastic breast carcinoma and is a basal breast cancer cell line." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0002090 a rdfs:Class ;
  rdfs:label "endophytic retinoblastoma cell" ;
  rdfs:comment "A retinoblastoma that begins in the inner layers of the retina and spreads toward the center of the globe." ;
  rdfs:subClassOf obo:BTO_0001178 .

obo:BTO_0004964 a rdfs:Class ;
  rdfs:label "KOPT-K1 cell" ;
  rdfs:comment "Human T-ALL cell line." ;
  rdfs:subClassOf obo:BTO_0002144 , obo:BTO_0002504 .

obo:BTO_0000349 a rdfs:Class ;
  rdfs:label "gut cavity" .

obo:BTO_0001643 a rdfs:Class ;
  rdfs:label "lung bud" ;
  rdfs:comment "An outgrowth from the foregut that gives rise to the trachea, bronchi, and all the branchings that form a tracheobronchial tree." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0005278 a rdfs:Class ;
  rdfs:label "cestode" ;
  rdfs:comment "Any of a class (Cestoda) of bilaterally symmetrical flatworms parasitic especially in the intestines of vertebrates." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0006550 a rdfs:Class ;
  rdfs:label "RBL-5 cell" ;
  rdfs:comment "Murine leukemia cell line, induced by Rauscher murine leukemia virus (R-MuLV) carried in the ascites form in C57BL/6 mice was cultivated in vitro and passaged continuously." ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0002369 a rdfs:Class ;
  rdfs:label "HR-3Y1 cell" ;
  rdfs:comment "3Y1 cell line, transformed with v-Ha-ras oncogene." ;
  rdfs:subClassOf obo:BTO_0002368 .

obo:BTO_0002572 a rdfs:Class ;
  rdfs:label "MEF cell" ;
  rdfs:comment "Mouse embryonic fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0001440 a rdfs:Class ;
  rdfs:label "venom gland" ;
  rdfs:comment "The venom gland of snakes is in actual fact a modified salivary gland and is linked to the groove in the fangs by a duct; A bee has a poison gland in her abdomen." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0004198 a rdfs:Class ;
  rdfs:label "prostomium" ;
  rdfs:comment "The first body segment in annelids worms. It is in front of (but does not include) the mouth, being usually a small shelf- or lip-like extension over the dorsal side of the mouth. It sometimes bears antennae and eyes. By feeding, it often functions like a kind of overlip. The shape and composition of prostomium are important for annelid systematics." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0000690 a rdfs:Class ;
  rdfs:label "brain cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000255 .

obo:BTO_0000259 a rdfs:Class ;
  rdfs:label "chromaffin cell" ;
  rdfs:comment "A type of amine precursor uptake and decarboxylation cells that stain readily with chromium salts, their cytoplasmic granules taking on a characteristic brown color; they are found especially in cells of the adrenal medulla and in paraganglia of the coccygeal gland and carotid gland, along the sympathetic nerves, and in various organs. They contain chromaffin granules." ;
  rdfs:subClassOf obo:BTO_0002691 .

obo:BTO_0001825 a rdfs:Class ;
  rdfs:label "T-cell lymphoma cell" ;
  rdfs:comment "A disease in which certain cells of the lymph system (called T-lymphocytes) become cancerous." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0004845 a rdfs:Class ;
  rdfs:label "NHOst cell" ;
  rdfs:comment "Normal female human osteoblast cell line." ;
  rdfs:subClassOf obo:BTO_0004324 .

obo:BTO_0000872 a rdfs:Class ;
  rdfs:label "oligodendrocytic cell line" .

obo:BTO_0002498 a rdfs:Class ;
  rdfs:label "arachnoid barrier layer" ;
  rdfs:comment "The arachnoid barrier layer is a part of the arachnoid meningeal layer. It is formed by tight junctions between the endothelial cells of cerebral capillaries in the arachnoid mater." .

obo:BTO_0005104 a rdfs:Class ;
  rdfs:label "culture condition:2-sulfoacetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004939 a rdfs:Class ;
  rdfs:label "KOCL-45 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0004499 a rdfs:Class ;
  rdfs:label "prostate gland intraepithelial neoplasia cell line" ;
  rdfs:comment "Prostatic intraepithelial neoplasia (PIN) is a microscopic lesion in the prostate which is thought to be a precursor to prostate cancer." ;
  rdfs:subClassOf obo:BTO_0002398 .

obo:BTO_0004325 a rdfs:Class ;
  rdfs:label "2T3 cell" ;
  rdfs:comment "Murine osteoblast cell line." ;
  rdfs:subClassOf obo:BTO_0004324 .

obo:BTO_0001955 a rdfs:Class ;
  rdfs:label "REF-52 cell" ;
  rdfs:comment "Rat embryo fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0003762 a rdfs:Class ;
  rdfs:label "PZ-HPV-7 cell" ;
  rdfs:comment "Human prostate epithelial cell line; derived from epithelial cells cultured from normal tissue from the peripheral zone of the prostate. The cells were transformed by transfection with HPV18 DNA." ;
  rdfs:subClassOf obo:BTO_0002398 .

obo:BTO_0004975 a rdfs:Class ;
  rdfs:label "embryogenic cell line" .

obo:BTO_0000285 a rdfs:Class ;
  rdfs:label "corm" ;
  rdfs:comment "A rounded thick modified underground stem base bearing membranous or scaly leaves and buds and acting as a vegetative reproductive structure." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0005217 a rdfs:Class ;
  rdfs:label "LNGK-9 PCa cell" ;
  rdfs:comment "Human prostate cancer cell line." .

obo:BTO_0004463 a rdfs:Class ;
  rdfs:label "ileostomal fluid" ;
  rdfs:comment "Ileostomy is the artificial opening made by the surgical formation of an artificial anus by connecting the ileum to an opening in the abdominal wall." .

obo:BTO_0005564 a rdfs:Class ;
  rdfs:label "EBV-B cell" ;
  rdfs:comment "Epstein Barr virus-transformed human B lymphocyte cell line." ;
  rdfs:subClassOf obo:BTO_0001522 .

obo:BTO_0004951 a rdfs:Class ;
  rdfs:label "NALL-1 cell" ;
  rdfs:comment "Human null cell from acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0001777 a rdfs:Class ;
  rdfs:label "megasporangium" ;
  rdfs:comment "The central and chief part of a plant ovule that encloses the female gametophyte." ;
  rdfs:subClassOf obo:BTO_0001287 .

obo:BTO_0005488 a rdfs:Class ;
  rdfs:label "osteocyte cell line" .

obo:BTO_0000216 a rdfs:Class ;
  rdfs:label "culture condition" .

obo:BTO_0006254 a rdfs:Class ;
  rdfs:label "UWB1.289+BRCA1 cell" ;
  rdfs:comment "A stable cell line derived from UWB1.289." .

obo:BTO_0002329 a rdfs:Class ;
  rdfs:label "dorsal nerve cord" ;
  rdfs:comment "The dorsal tubular cord of nervous tissue above the notochord of a chordate that comprises or develops into the central nervous system." ;
  rdfs:subClassOf obo:BTO_0001656 .

obo:BTO_0000768 a rdfs:Class ;
  rdfs:label "infundibulum" ;
  rdfs:comment "The hollow conical process of gray matter by which the pituitary gland is continuous with the brain." .

obo:BTO_0005115 a rdfs:Class ;
  rdfs:label "salivary duct" ;
  rdfs:comment "An intralobular duct found in salivary glands and involved in the production and transport of their secretions." .

obo:BTO_0003350 a rdfs:Class ;
  rdfs:label "BV-2 cell" ;
  rdfs:comment "Murine microglial cell line." ;
  rdfs:subClassOf obo:BTO_0003349 .

obo:BTO_0005659 a rdfs:Class ;
  rdfs:label "ovarian steroidogenic cell" ;
  rdfs:comment "A steroidogenic cell is involved in the formation of steroids, as by the adrenal cortex, testes, and ovaries." .

obo:BTO_0004394 a rdfs:Class ;
  rdfs:label "16-HBEo cell" ;
  rdfs:comment "Human bronchial epithelial cell line." .

obo:BTO_0005706 a rdfs:Class ;
  rdfs:label "HEY-1B cell" ;
  rdfs:comment "Human highly-invasive ovarian cancer cell line." .

obo:BTO_0005234 a rdfs:Class ;
  rdfs:label "culture condition:D-glucose-L-asparagine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006493 a rdfs:Class ;
  rdfs:label "myxoliposarcoma cell" ;
  rdfs:comment "A liposarcoma characterized by the presence of round non-lipogenic primitive mesenchymal cells and small signet ring lipoblasts within a myxoid stoma with a branching vascular pattern. This category includes hypercellular lesions with round cell morphology, formerly known as round cell liposarcoma." ;
  rdfs:subClassOf obo:BTO_0003745 .

obo:BTO_0005561 a rdfs:Class ;
  rdfs:label "C9-MEF cell" ;
  rdfs:comment "Mouse embryonic fibroblast cell line oncogenically transformed with both E1A and ras, and containing p53-/-." ;
  rdfs:subClassOf obo:BTO_0002572 .

obo:BTO_0000683 a rdfs:Class ;
  rdfs:label "Krebs ascites cell" ;
  rdfs:subClassOf obo:BTO_0000094 , obo:BTO_0000785 .

obo:BTO_0006334 a rdfs:Class ;
  rdfs:label "uterine endometrial clear cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001555 .

obo:BTO_0002230 a rdfs:Class ;
  rdfs:label "culture condition:naphthalene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001423 a rdfs:Class ;
  rdfs:label "uterine lavage" ;
  rdfs:comment "A uterine lavage is a aseptic procedure whereby a sterile solution, usually physiologic saline is infused into the uterus and then allowed to flow out via a sterile catheter placed through the mare's cervix." .

obo:BTO_0001737 a rdfs:Class ;
  rdfs:label "hemangioendothelioma cell" ;
  rdfs:comment "A true neoplasm of vascular origin, characterized by proliferation of endothelial cells in and about the vascular lumen; it is usually considered to be intermediate in grade between hemangioma and hemangiosarcoma but sometimes is used to denote the latter." .

obo:BTO_0006303 a rdfs:Class ;
  rdfs:label "Mull cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005929 a rdfs:Class ;
  rdfs:label "SCH cell" ;
  rdfs:comment "Human gastric choriocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001575 .

obo:BTO_0005648 a rdfs:Class ;
  rdfs:label "culture condition:isoprimeverose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006172 a rdfs:Class ;
  rdfs:label "testicular somatic cell" ;
  rdfs:comment "Somatic cell of the testis." .

obo:BTO_0001141 a rdfs:Class ;
  rdfs:label "pulmonary artery endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001854 .

obo:BTO_0005980 a rdfs:Class ;
  rdfs:label "nectary parenchyma" ;
  rdfs:subClassOf obo:BTO_0000357 .

obo:BTO_0000506 a rdfs:Class ;
  rdfs:label "gastrocnemius" ;
  rdfs:comment "The largest and most superficial muscle of the calf of the leg arising by two heads from the condyles of the femur and attaching to a tendon that becomes part of the Achilles tendon." ;
  rdfs:subClassOf obo:BTO_0000722 .

obo:BTO_0002684 a rdfs:Class ;
  rdfs:label "lymphoid follicle" ;
  rdfs:comment "A small collection of lymphoid tissue found in such organs as the intestines." ;
  rdfs:subClassOf obo:BTO_0000784 .

obo:BTO_0001546 a rdfs:Class ;
  rdfs:label "chronic lymphocytic leukemia cell" ;
  rdfs:comment "Cell of a neoplastic disease of middle or old age, characterized by excessive numbers of circulating lymphocytes of normal, mature appearance, usually B-lymphocytes; presumably a neoplastic transformation of lymphoid stem cells." ;
  rdfs:subClassOf obo:BTO_0000744 .

obo:BTO_0001210 a rdfs:Class ;
  rdfs:label "SGS cell" ;
  rdfs:comment "Rat Galliera sarcoma cell line from a 2 months old rat Galliera; Tumor: sarcoma Viruses: contains SG-RaLV (Retrovirus type C)." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0001239 a rdfs:Class ;
  rdfs:label "serum" ;
  rdfs:comment "1: The watery portion of an animal fluid remaining after coagulation: a (1): blood serum (2): antiserum b: whey c: a normal or pathological serous fluid (as in a blister). 2: The watery part of a plant fluid." .

obo:BTO_0001271 a rdfs:Class ;
  rdfs:label "leukemia cell" ;
  rdfs:comment "A cancer cell of the white blood cells. Leukaemias are grouped by how quickly the disease develops (acute or chronic) as well as by the type of blood cell that is affected." ;
  rdfs:subClassOf obo:BTO_0000580 .

obo:BTO_0005969 a rdfs:Class ;
  rdfs:label "KOSC-3 cell" ;
  rdfs:comment "Human oral cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002027 .

obo:BTO_0004856 a rdfs:Class ;
  rdfs:label "pancreaticobiliary cancer cell" ;
  rdfs:subClassOf obo:BTO_0000584 , obo:BTO_0001326 .

obo:BTO_0004221 a rdfs:Class ;
  rdfs:label "SN-12C cell" ;
  rdfs:comment "Human renal cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0005940 a rdfs:Class ;
  rdfs:label "sepal nectary" ;
  rdfs:comment "This kind of nectary is located on a sepal or an equivalent on a calyx." ;
  rdfs:subClassOf obo:BTO_0000357 .

obo:BTO_0001654 a rdfs:Class ;
  rdfs:label "female cone" ;
  rdfs:comment "In conifers, the reproductive parts are housed within the cones. A conifer has two kinds of cones. Seed, or female cones are the larger, hard cones. Each of the scales that make up a seed cone has two ovules. Every ovule produces a spore that grows into a female gametophyte and this tiny plant produces egg cells. The wind usually delivers the pollen grains from the pollen cone to the seed cone, this is the yellow haze often seen in the spring in coniferous forest areas." ;
  rdfs:subClassOf obo:BTO_0000280 .

obo:BTO_0006409 a rdfs:Class ;
  rdfs:label "KB-CP20 cell" ;
  rdfs:comment "KB cells growing in 20microgram per milliliter cisplatin." .

obo:BTO_0005134 a rdfs:Class ;
  rdfs:label "adenomatoid odontogenic tumor cell" ;
  rdfs:comment "The adenomatoid odontogenic tumor is an odontogenic tumor arising from the enamel organ or dental lamina." .

obo:BTO_0002245 a rdfs:Class ;
  rdfs:label "foreskin fibroblast cell line" ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001118 a rdfs:Class ;
  rdfs:label "P3X63Ag8 cell" ;
  rdfs:comment "Mouse BALB/c plasmacytoma B lymphocyte myeloma cell line. Morphology: lymphoblast. Species: mouse, BALB/c. Tumor: myeloma." ;
  rdfs:subClassOf obo:BTO_0000456 , obo:BTO_0000899 , obo:BTO_0001522 .

obo:BTO_0005553 a rdfs:Class ;
  rdfs:label "aortic intima" ;
  rdfs:comment "The innermost tunica (layer) of the aorta. It is made up of one layer of endothelial cells and is supported by an internal elastic lamina. The endothelial cells are in direct contact with the blood flow." .

obo:BTO_0000335 a rdfs:Class ;
  rdfs:label "deciduoma cell" ;
  rdfs:comment "1: A cell of a mass of tissue formed in the uterus following pregnancy that contains remnants of chorionic or decidual tissue. 2: A cell of decidual tissue induced in the uterus (as by trauma) in the absence of pregnancy." .

obo:BTO_0004535 a rdfs:Class ;
  rdfs:label "medullary collecting duct cell" ;
  rdfs:comment "Medullary collecting ducts are divided into outer and inner segments, the latter reaching more deeply into the medulla. The variable reabsorption of water and, depending on fluid balances and hormonal influences, the reabsorption or secretion of sodium, potassium, hydrogen and bicarbonate ion continues here." .

obo:BTO_0002317 a rdfs:Class ;
  rdfs:label "slow muscle" ;
  rdfs:comment "The darker-colored muscle tissue of some mammals, composed of slow twitch muscle fibers." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0004760 a rdfs:Class ;
  rdfs:label "TF-1 cell" ;
  rdfs:comment "Human bone marrow erythroleukemia cell line. The TF-1 cell line has been established in October 1987 from a heparinized bone marrow aspiration sample from a 35 year old Japanese male with severe pancytopenia." ;
  rdfs:subClassOf obo:BTO_0000264 , obo:BTO_0000846 .

obo:BTO_0002459 a rdfs:Class ;
  rdfs:label "nucleus reuniens" ;
  rdfs:comment "One of the median nuclei of the thalamus; it is situated near the interthalamic adhesion, bordering the third ventricle, ventral to the central medial nucleus." ;
  rdfs:subClassOf obo:BTO_0002454 .

obo:BTO_0005211 a rdfs:Class ;
  rdfs:label "choriodecidua" ;
  rdfs:comment "A fetal membrane." ;
  rdfs:subClassOf obo:BTO_0000473 .

obo:BTO_0001960 a rdfs:Class ;
  rdfs:label "HuMMEC cell" ;
  rdfs:comment "Human mammary microvessel endothelial cell." ;
  rdfs:subClassOf obo:BTO_0000816 .

obo:BTO_0004416 a rdfs:Class ;
  rdfs:label "Daltons lymphoma cell" ;
  rdfs:comment "Spontaneous T cell lymphoma." ;
  rdfs:subClassOf obo:BTO_0001825 .

obo:BTO_0005527 a rdfs:Class ;
  rdfs:label "lateral root primordium" ;
  rdfs:comment "It arises in the pericycle." ;
  rdfs:subClassOf obo:BTO_0004791 .

obo:BTO_0002364 a rdfs:Class ;
  rdfs:label "gastric pit" ;
  rdfs:comment "Any of the numerous pits in the gastric mucosa marking the openings of the gastric glands." .

obo:BTO_0000166 a rdfs:Class ;
  rdfs:label "cecum" ;
  rdfs:comment "The first part of the large intestine, forming a dilated pouch into which open the ileum, colon, and appendix vermiformis." .

obo:BTO_0002904 a rdfs:Class ;
  rdfs:label "non-Hodgkin lymphoma cell line" .

obo:BTO_0001434 a rdfs:Class ;
  rdfs:label "vegetative cell" ;
  rdfs:comment "1: Growing or having the power of growing. 2: Of, relating to, or engaged in nutritive and growth functions as contrasted with reproductive functions." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0000114 a rdfs:Class ;
  rdfs:label "basidiocarp" ;
  rdfs:comment "The large fruiting body characteristic of the majority of fungi of the subphylum Basidiomycotina; it is composed of masses of intertwined hyphal elements and produces basidia. Mushrooms and toadstools are common examples." ;
  rdfs:subClassOf obo:BTO_0000487 .

obo:BTO_0002526 a rdfs:Class ;
  rdfs:label "HBL-4 cell" ;
  rdfs:comment "Human Burkitt's lymphoma cell line(HBL-4 was established from a patient with small noncleaved cell lymphoma (Burkitt's type). The HBL-4 cell line is Epstein-Barr virus (EBV)-negative." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0002013 a rdfs:Class ;
  rdfs:label "AS-30D cell" ;
  rdfs:comment "Rat hepatoma cell line; established from the hepatoma of a 16-month-old SD-female rat in 1988." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000328 a rdfs:Class ;
  rdfs:label "culture condition:D-phenylglycine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001117 a rdfs:Class ;
  rdfs:label "proboscis" ;
  rdfs:comment "1: The trunk of an elephant; also: any long flexible snout. 2: Any of various elongated or extensible tubular processes as the sucking organ of a butterfly of the oral region of an invertebrate." .

obo:BTO_0004371 a rdfs:Class ;
  rdfs:label "medial vestibular nucleus" ;
  rdfs:comment "The one of the four vestibular nuclei on each side of the medulla oblongata that sends ascending fibers to the oculomotor and trochlear nuclei in the cerebrum on the opposite side of the brain and sends descending fibers down both sides of the spinal cord to synapse with motor neurons of the ventral roots." ;
  rdfs:subClassOf obo:BTO_0004368 .

obo:BTO_0001863 a rdfs:Class ;
  rdfs:label "body wall muscle" ;
  rdfs:comment "A worm's body wall has two kinds of muscles that it uses to crawl. Circular muscles surround the worm's body and can make the body shrink or spread out. Longitudinal muscles run the length of the body and can shorten or lengthen the worm. Setae (bristles) prevent the worm from slipping." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0004365 a rdfs:Class ;
  rdfs:label "gastroesophageal cancer cell" .

obo:BTO_0000209 a rdfs:Class ;
  rdfs:label "corpus epididymis" ;
  rdfs:comment "The body of the epididymis." .

obo:BTO_0005022 a rdfs:Class ;
  rdfs:label "CAMA-1 cell" ;
  rdfs:comment "Human mammary gland breast adenocarcinoma cell line, derived from metastatic site: pleural effusion." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0001094 a rdfs:Class ;
  rdfs:label "pre-B acute lymphoblastic leukemia cell" ;
  rdfs:comment "The most common subtype, consisting of small uniform lymphoblasts that do not synthesize complete functional immunoglobulins. The term has sometimes been restricted to the minority of the larger group that synthesize heavy chains of immunoglobulins." ;
  rdfs:subClassOf obo:BTO_0000731 .

obo:BTO_0001530 a rdfs:Class ;
  rdfs:label "glioblastoma cell line" ;
  rdfs:comment "Cell line of a malignant rapidly growing astrocytoma of the central nervous system and usually of a cerebral hemisphere." ;
  rdfs:subClassOf obo:BTO_0000101 .

obo:BTO_0002003 a rdfs:Class ;
  rdfs:label "SW-1353 cell" ;
  rdfs:comment "Human bone chondrosarcoma cell line. The SW 1353 cell line was initiated by A. Leibovitz at the Scott and White Clinic, Temple, Texas in 1977 from a primary grade II chondrosarcoma of the right humerus obtained from a 72 year old female Caucasian." ;
  rdfs:subClassOf obo:BTO_0001574 .

obo:BTO_0001839 a rdfs:Class ;
  rdfs:label "dental papilla" ;
  rdfs:comment "A small mass of condensed mesenchymal tissue in the enamel organ, which differentiates into the dentin and dental pulp." .

obo:BTO_0000959 a rdfs:Class ;
  rdfs:label "esophagus" ;
  rdfs:comment "A muscular tube that in humans is about nine inches (23 centimeters) long and passes from the pharynx down the neck between the trachea and the spinal column and behind the left bronchus where it pierces the diaphragm slightly to the left of the middle line and joins the cardiac end of the stomach." .

obo:BTO_0005857 a rdfs:Class ;
  rdfs:label "root cortex" ;
  rdfs:comment "The outermost layer of the root of a plant, bounded on the outside by the epidermis and on the inside by the endodermis. In plants, it is composed mostly of differentiated cells, usually large thin-walled parenchyma cells of the ground tissue system. The outer cortical cells often acquire irregularly thickened cell walls, and are called collenchyma cells. Some of the outer cortical cells may contain chloroplasts. It is responsible for the transportation of materials into the central cylinder of the root through diffusion and may also be used for food storage in the form of starch." .

obo:BTO_0003343 a rdfs:Class ;
  rdfs:label "CL1-3 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." .

obo:BTO_0000919 a rdfs:Class ;
  rdfs:label "8305C cell" ;
  rdfs:comment "Human thyroid carcinoma cell line, established from the primary tumor of a 67-year-old woman with primary thyroid undifferentiated carcinoma." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0005192 a rdfs:Class ;
  rdfs:label "MCF-7/adr cell" ;
  rdfs:comment "A multidrug-resistant (MDR) human breast cancer MCF-7 subline." .

obo:BTO_0001761 a rdfs:Class ;
  rdfs:label "nasal vestibule" ;
  rdfs:comment "The anterior part of the nasal cavity situated just inferior to the nares and limited posteriorly by the limen nasi. It is lined with stratified squamous epithelium and contains hairs (vibrissae) and sebaceous glands." .

obo:BTO_0000342 a rdfs:Class ;
  rdfs:label "diencephalon" ;
  rdfs:comment "The posterior subdivision of the forebrain." .

obo:BTO_0000252 a rdfs:Class ;
  rdfs:label "chorion" ;
  rdfs:comment "The outer membrane of the two membranes enclosing the embryo in reptiles, birds, and mammals. In placental mammals it contributes to the development of the placenta." ;
  rdfs:subClassOf obo:BTO_0000473 .

obo:BTO_0001986 a rdfs:Class ;
  rdfs:label "culture condition:cyclohexane-1,2-diol grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001965 a rdfs:Class ;
  rdfs:label "carcass" ;
  rdfs:comment "A dead body." .

obo:BTO_0004661 a rdfs:Class ;
  rdfs:label "iliac artery endothelium" ;
  rdfs:subClassOf obo:BTO_0001853 .

obo:BTO_0005073 a rdfs:Class ;
  rdfs:label "NB14 cell" ;
  rdfs:comment "Human neuroblastoma tumor cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0002773 a rdfs:Class ;
  rdfs:label "salivary gland cancer cell" ;
  rdfs:comment "Cancer of the salivary gland is a malignant tumor of the tissues that produce saliva." .

obo:BTO_0005600 a rdfs:Class ;
  rdfs:label "outer nuclear layer" ;
  rdfs:comment "The outer nuclear layer is one of the layers of the vertebrate retina, the light-detecting portion of the eye. Like the inner nuclear layer, the outer nuclear layer contains several strata of oval nuclear bodies, they are of two kinds, rod and cone granules, so named on account of their being respectively connected with the rods and cones of the next layer." .

obo:BTO_0003602 a rdfs:Class ;
  rdfs:label "HeLa GFP-histone H2B cell" ;
  rdfs:comment "HeLa cells expressing a GFP-histone H2B protein." .

obo:BTO_0005995 a rdfs:Class ;
  rdfs:label "UM-SCC-11B cell" ;
  rdfs:comment "Head and neck squamous cell carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0006516 a rdfs:Class ;
  rdfs:label "invertebrate maxilla" ;
  rdfs:comment "In arthropods, the maxillae are paired structures present on the head as mouthparts in members of the clade Mandibulata, used for tasting and manipulating food." .

obo:BTO_0001947 a rdfs:Class ;
  rdfs:label "HRT-18 cell" ;
  rdfs:comment "Human, rectum-anus, adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001532 .

obo:BTO_0005823 a rdfs:Class ;
  rdfs:label "hair-cell stereocilium" ;
  rdfs:comment "In the inner ear, stereocilia are the mechanosensing organelles of hair cells, which respond to fluid motion in numerous types of animals for various functions, including hearing and balance. They are about 10 to 50 micrometers in length and share some similar features of microvilli. Stereocilia exist in the auditory and vestibular systems." .

obo:BTO_0005498 a rdfs:Class ;
  rdfs:label "HNPC cell" ;
  rdfs:comment "Human nucleus pulposus cell line, isolated from nucleus pulposus of human intervertibral disc." ;
  rdfs:subClassOf obo:BTO_0005497 .

obo:BTO_0001910 a rdfs:Class ;
  rdfs:label "NCI-H441 cell" ;
  rdfs:comment "Homo sapiens lung papillary adenocarcinoma cell line. The NCI-H441 cell line was derived in 1982 from the pericardial fluid of a patient with papillary adenocarcinoma of the lung." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0003591 a rdfs:Class ;
  rdfs:label "GM00637 cell" ;
  rdfs:comment "Established at the Coriell Institute; derived from a diploid fibroblast cell line developed from a normal adult skin sample." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0005650 a rdfs:Class ;
  rdfs:label "culture condition:N-acetyltaurine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006003 a rdfs:Class ;
  rdfs:label "0822 cell" ;
  rdfs:comment "Human glioblastoma multiforme stem cell line, GSC." ;
  rdfs:subClassOf obo:BTO_0006001 .

obo:BTO_0002407 a rdfs:Class ;
  rdfs:label "spermary" ;
  rdfs:comment "An organ or a gland in which male gametes are formed, especially in invertebrate animals." ;
  rdfs:subClassOf obo:BTO_0000080 .

obo:BTO_0002147 a rdfs:Class ;
  rdfs:label "type II intestinal metaplasia disease specific cell type" ;
  rdfs:comment "Metaplasia is the change in the type of adult cells in a tissue to another form of adult cells that are not normal for that tissue." .

obo:BTO_0005222 a rdfs:Class ;
  rdfs:label "PC-3M-Pro4 cell" ;
  rdfs:comment "PC-3M cells were injected into the prostates of athymic mice. Tumors from the prostate or lymph nodes were harvested, and cells were reinjected into the prostate. This cycle was repeated three to five times to yield cell line PC-3M-Pro4." .

obo:BTO_0003639 a rdfs:Class ;
  rdfs:label "EJ-1 cell" ;
  rdfs:comment "Human urinary bladder cancer cell line." .

obo:BTO_0000551 a rdfs:Class ;
  rdfs:label "lung cancer cell" ;
  rdfs:comment "Cancer cell of the major organ of respiration the lung." .

obo:BTO_0006433 a rdfs:Class ;
  rdfs:label "shuck" ;
  rdfs:comment "The outer covering of a nut or of an ear of corn." ;
  rdfs:subClassOf obo:BTO_0001227 .

obo:BTO_0001739 a rdfs:Class ;
  rdfs:label "pars tuberalis" ;
  rdfs:comment "A thin plate of cells that is an extension of the adenohypophysis on the ventral or anterior aspect of the infundibulum." .

obo:BTO_0000168 a rdfs:Class ;
  rdfs:label "carotid artery" ;
  rdfs:comment "A key artery located in the front of the neck that carries blood from the heart to the brain. Cholesterol plaques on the inner wall of the carotid artery can lead to stroke." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0004496 a rdfs:Class ;
  rdfs:label "preosteoclast" ;
  rdfs:comment "Precursors of an osteoclast." .

obo:BTO_0004119 a rdfs:Class ;
  rdfs:label "HL-60 (TB) cell" ;
  rdfs:comment "Promyelocytic leukemia cell line." .

obo:BTO_0005927 a rdfs:Class ;
  rdfs:label "SNU-46 cell" ;
  rdfs:comment "Human laryngeal squamous cell carcinoma cell line; established from Korean patients." ;
  rdfs:subClassOf obo:BTO_0005921 .

obo:BTO_0000173 a rdfs:Class ;
  rdfs:label "fruit capsule" ;
  rdfs:comment "A simple fruit that develops from a compound ovary with two or more carpels; capsules dehisce in many ways, example: cotton." ;
  rdfs:subClassOf obo:BTO_0000486 , obo:BTO_0001287 .

obo:BTO_0004444 a rdfs:Class ;
  rdfs:label "HUVE-12 cell" ;
  rdfs:comment "Human umbilical vein endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0001949 .

obo:BTO_0006473 a rdfs:Class ;
  rdfs:label "brain-corpora cardiaca-corpora allata complex" ;
  rdfs:comment "The brain-corpora cardiaca-corpora allata complex of insects is the physiological equivalent of the brain-hypophysis axis of vertebrates." .

obo:BTO_0001950 a rdfs:Class ;
  rdfs:label "HuH-7 cell" ;
  rdfs:comment "Human hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006043 a rdfs:Class ;
  rdfs:label "NB4-LR1 cell" ;
  rdfs:comment "Retinoid-maturation-resistant subclone of the acute promyelocytic leukemia cell line NB4." .

obo:BTO_0005777 a rdfs:Class ;
  rdfs:label "midgut diverticulum" ;
  rdfs:comment "The midgut of arachnids and crustaceans is a simple, often relatively short tube, bit it gives rise to large tubular or branched midgut diverticula." .

obo:BTO_0003256 a rdfs:Class ;
  rdfs:label "corpus amylaceum" ;
  rdfs:comment "One of a number of small ovoid or rounded, sometimes laminated, bodies resembling a grain of starch and found in nervous Tissue, in the prostate, and in pulmonary alveoli; of little pathological significance, and apparently derived from degenerated cells or proteinaceous secretions." .

obo:BTO_0002993 a rdfs:Class ;
  rdfs:label "beta-TC3 cell" ;
  rdfs:comment "Murine insulin-secreting pancreatic beta cells from an insulin producing tumour (insulinoma) in the pancreas." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0001491 a rdfs:Class ;
  rdfs:label "viscus" ;
  rdfs:comment "An internal organ of the body; especially: one (as the heart, liver, or intestine) located in the great cavity of the trunk proper." .

obo:BTO_0002418 a rdfs:Class ;
  rdfs:label "NCI-H292 cell" ;
  rdfs:comment "Mucoepidermoid human lung carcinoma cell line; established from a 32 years old black female; Morphology: epithelial." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0005954 a rdfs:Class ;
  rdfs:label "DIPG-6 cell" ;
  rdfs:comment "Primary human pediatric GBM line derived from previously irradiated diffuse intrinsic pontine glioma, DIPG at autopsy." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0002537 a rdfs:Class ;
  rdfs:label "BNL CL.2 cell" ;
  rdfs:comment "Mus musculus BALB/c liver cell line; established from an embryo." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0002433 a rdfs:Class ;
  rdfs:label "genital primordium" ;
  rdfs:subClassOf obo:BTO_0001886 .

obo:BTO_0001578 a rdfs:Class ;
  rdfs:label "esophageal epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000988 a rdfs:Class ;
  rdfs:label "pancreas" ;
  rdfs:comment "A large lobulated gland of vertebrates that secretes digestive enzymes and the hormones insulin and glucagon." ;
  rdfs:subClassOf obo:BTO_0000345 , obo:BTO_0001491 .

obo:BTO_0006444 a rdfs:Class ;
  rdfs:label "Jeko-1 cell" ;
  rdfs:comment "Human peripheral blood mantle cell lymphoma cell line, established from the peripheral blood of a 78-year-old woman with B-cell non-Hodgkin lymphoma (B-NHL)." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0003130 a rdfs:Class ;
  rdfs:label "FL cell" ;
  rdfs:comment "Human amnion epithelial cell line." .

obo:BTO_0004704 a rdfs:Class ;
  rdfs:label "extrastriate cortex" ;
  rdfs:comment "The term visual cortex refers to the primary visual cortex and extrastriate visual cortical areas such as V2, V3, V4, and V5. The extrastriate cortical areas consist of Brodmann area 18 and Brodmann area 19. There is a visual cortex for each hemisphere of the brain. The left hemisphere visual cortex receives signals from the right visual field and the right visual cortex from the left visual field." .

obo:BTO_0006523 a rdfs:Class ;
  rdfs:label "AII amacrine cell" ;
  rdfs:comment "AII amacrine cells are a subtype of amacrine cells present in the retina of mammals." ;
  rdfs:subClassOf obo:BTO_0004044 .

obo:BTO_0004722 a rdfs:Class ;
  rdfs:label "plasmacytoid T-lymphocyte" ;
  rdfs:comment "These cells constitute a population of medium-sized mononuclear cells with plasmacytoid features in the T-cell zones of human lymphoid tissues, and in the thymus and lymph nodes of patients with various inflammatory and neoplastic diseases. They have been shown to express several antigens expressed on myelomonocytes, monocytes, and macrophages but lack markers for B-cells and plasma cells." ;
  rdfs:subClassOf obo:BTO_0004625 .

obo:BTO_0006273 a rdfs:Class ;
  rdfs:label "EM-E6E7TERT-2 cell" ;
  rdfs:comment "Immortalized endometrial glandular cells with normal structural and functional characteristics." ;
  rdfs:subClassOf obo:BTO_0006271 .

obo:BTO_0000421 a rdfs:Class ;
  rdfs:label "connective tissue" ;
  rdfs:comment "The tissue which binds together and is the support of the various structures of the body. It is made up of fibroblasts, fibroglia, collagen fibrils, and elastic fibrils. It is derived from the mesoderm and in a broad sense includes the collagenous, elastic, mucous, reticular, osseous, and cartilaginous tissue. Some also include the blood in this group of tissues. Connective tissue is classified according to concentration of fibers as loose (areolar) and dense, the latter having more abundant fibers than the former." .

obo:BTO_0000948 a rdfs:Class ;
  rdfs:label "SKOV-3 cell" ;
  rdfs:comment "Human ovary; metastatic site: ascites adenocarcinoma cell line; established from a 64-year-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0000883 a rdfs:Class ;
  rdfs:label "spinal root" ;
  rdfs:comment "The anterior and posterior roots of the spinal nerves." .

obo:BTO_0001459 a rdfs:Class ;
  rdfs:label "white prepupa" ;
  rdfs:comment "In Drosophila metamorphosis there is a 15 minute period after puparium formation, during which the cuticle is white. At this stage, the animal is called a white prepupa." ;
  rdfs:subClassOf obo:BTO_0001110 .

obo:BTO_0005807 a rdfs:Class ;
  rdfs:label "GI-LA-N cell" ;
  rdfs:comment "Human neuroblastoma cell line; established from the metastases of a lymph node biopsy of a stage III neuroblastoma after 7 months of chemotherapy." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0005796 a rdfs:Class ;
  rdfs:label "PEO-1 cell" ;
  rdfs:comment "Human ovarian adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0001605 a rdfs:Class ;
  rdfs:label "reticulum trabeculare" ;
  rdfs:comment "A trabeculum of loose fibers found at the iridocorneal angle between the anterior chamber of the eye and the venous sinus of the sclera; the aqueous humor filters through the spaces between the fibers into the sinus and passes into the bloodstream. The reticulum is divided into a corneoscleral part and a uveal part; An area of tissue in the eye located around the base of the cornea, near the ciliary body, and is responsible for draining the aqueous humor from the eye via the anterior chamber. The tissue is spongy and lined by trabeculocytes; it allows fluid to drain into a set of tubes called Schlemm's canal flowing into the blood system." .

obo:BTO_0000582 a rdfs:Class ;
  rdfs:label "hepatoma ascites cell line" ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0004326 a rdfs:Class ;
  rdfs:label "ADF cell" ;
  rdfs:comment "Human continuous glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0001282 a rdfs:Class ;
  rdfs:label "HT-1080 cell" ;
  rdfs:comment "Human fibrosarcoma cell line; established from the biopsy from a fibrosarcoma of a 35-year-old Caucasian man in 1972; patient did not receive any chemo- or radiotherapy." ;
  rdfs:subClassOf obo:BTO_0000460 .

obo:BTO_0005554 a rdfs:Class ;
  rdfs:label "B7E3 cell" ;
  rdfs:comment "Mouse oral tongue squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0004842 a rdfs:Class ;
  rdfs:label "MyLa 2039 cell" ;
  rdfs:comment "Cutaneous T-cell lymphoma (CTCL) cell line from skin. The malignant T-cell line MyLa 2039 was established from a plaque biopsy specimen of a patient with Mycosis fungoides (MF)." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0003706 a rdfs:Class ;
  rdfs:label "WTK-1 cell" ;
  rdfs:comment "Human lymphoblastoid cell line." .

obo:BTO_0006129 a rdfs:Class ;
  rdfs:label "lateral spinothalamic tract" ;
  rdfs:comment "One of the two main parts of the spinathalamic tract. It transmits pain and temperature." .

obo:BTO_0004980 a rdfs:Class ;
  rdfs:label "uveal melanoma cell" ;
  rdfs:comment "Ocular melanoma consisting of overgrowth of uveal melanocytes." ;
  rdfs:subClassOf obo:BTO_0000848 .

obo:BTO_0002666 a rdfs:Class ;
  rdfs:label "adult stem cell" ;
  rdfs:comment "Adult stem cells are undifferentiated cells that reproduce daily to provide certain specialized cells. Until recently it was thought that each of these cells could produce just one particular type of cell. This is called differentiation. However in the past few years, evidence has been gathered of stem cells that can transform into several different forms." ;
  rdfs:subClassOf obo:BTO_0006078 .

obo:BTO_0004636 a rdfs:Class ;
  rdfs:label "urinary bladder endothelium" ;
  rdfs:subClassOf obo:BTO_0000393 , obo:BTO_0001694 .

obo:BTO_0000038 a rdfs:Class ;
  rdfs:label "SW-480 cell" ;
  rdfs:comment "Human colon adenocarcinoma, established from the tumor of a 50-year-old Caucasian man with colon adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0000133 a rdfs:Class ;
  rdfs:label "blood serum" ;
  rdfs:comment "The cell-free portion of the blood from which the fibrinogen has been separated in the process of clotting." ;
  rdfs:subClassOf obo:BTO_0001239 .

obo:BTO_0006359 a rdfs:Class ;
  rdfs:label "TEX cell" ;
  rdfs:comment "Stem cell-like AML cell line." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0005152 a rdfs:Class ;
  rdfs:label "A2780/CDDP cell" ;
  rdfs:comment "Cisplatin resistant variant of the A2780 human ovarian carcinoma cell line." .

obo:BTO_0004628 a rdfs:Class ;
  rdfs:label "aortic valve" ;
  rdfs:comment "One of the four valves in the heart, this valve is situated at exit of the left ventricle of the heart where the aorta begins. The aortic valve lets blood from the left ventricle be pumped up into the aorta but prevents blood once it is in the aorta from returning to the heart." .

obo:BTO_0000006 a rdfs:Class ;
  rdfs:label "osteoblastoma cell" ;
  rdfs:comment "A benign tumor cell of bone." ;
  rdfs:subClassOf obo:BTO_0000372 .

obo:BTO_0005868 a rdfs:Class ;
  rdfs:label "LNCaP-C4 cell" ;
  rdfs:comment "Androgen receptor-positive, hormone-insensitive LNCaP-derived prostate cancer cell line." .

obo:BTO_0004651 a rdfs:Class ;
  rdfs:label "pelvic fin" ;
  rdfs:comment "One of the pair of fins positioned on the under-side of the body of a fish. Depending on the species, the pelvic fins can be found in a mid-ventral position underneath or just behind the pectoral fins or in front of the pectorals in the throat region." ;
  rdfs:subClassOf obo:BTO_0004649 .

obo:BTO_0001355 a rdfs:Class ;
  rdfs:label "temporal lobe" ;
  rdfs:comment "One of the two parietal lobes of the brain located behind the frontal lobe at the top of the brain. Parietal Lobe, Right - Damage to this area can cause visuo-spatial deficits (for example, the patient may have difficulty finding their way around new, or even familiar, places). Parietal Lobe, Left - Damage to this area may disrupt a patient's ability to understand spoken and/or written language. The parietal lobes contain the primary sensory cortex which controls sensation (touch, pressure). Behind the primary sensory cortex is a large association area that controls fine sensation (judgment of texture, weight, size, shape)." .

obo:BTO_0000990 a rdfs:Class ;
  rdfs:label "pancreatic alpha cell" ;
  rdfs:comment "One of the cells in the periphery of the pancreatic islets that secrete somatostatin (alpha1 cells) and glucagon (alpha2 cells)." ;
  rdfs:subClassOf obo:BTO_0005813 .

obo:BTO_0001305 a rdfs:Class ;
  rdfs:label "stipule" ;
  rdfs:comment "Either of a pair of appendages borne at the base of the leaf in many plants." .

obo:BTO_0000763 a rdfs:Class ;
  rdfs:label "lung" ;
  rdfs:comment "One of the usually paired compound saccular thoracic organs that constitute the basic respiratory organ of air-breathing vertebrates." ;
  rdfs:subClassOf obo:BTO_0000203 .

obo:BTO_0000386 a rdfs:Class ;
  rdfs:label "culture condition:(NH4)2SO4-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005828 a rdfs:Class ;
  rdfs:label "hair follicle epithelium" .

obo:BTO_0004007 a rdfs:Class ;
  rdfs:label "porcine aortic endothelial cell" ;
  rdfs:comment "Porcine aortic endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003246 .

obo:BTO_0003126 a rdfs:Class ;
  rdfs:label "bone marrow endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0005260 a rdfs:Class ;
  rdfs:label "MGL-8 cell" ;
  rdfs:comment "B cell lymphoblast cell line, derived from a normal individual." ;
  rdfs:subClassOf obo:BTO_0005261 .

obo:BTO_0005818 a rdfs:Class ;
  rdfs:label "BIN-67 cell" ;
  rdfs:comment "Small cell ovarian carcinoma of the hypercalcemic type, SCCOHT cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004671 a rdfs:Class ;
  rdfs:label "hair medulla" ;
  rdfs:comment "The medulla is the inner most layer of the hair shaft." .

obo:BTO_0004611 a rdfs:Class ;
  rdfs:label "SW-900 cell" ;
  rdfs:comment "Human lung squamous cell carcinoma grade IV. The tumor originated in the lung of a 53 year old male Caucasian." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0005307 a rdfs:Class ;
  rdfs:label "UAMS-32 cell" ;
  rdfs:comment "Murine stromal osteoblastic cell line." ;
  rdfs:subClassOf obo:BTO_0004324 .

obo:BTO_0001874 a rdfs:Class ;
  rdfs:label "lens epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0001120 .

obo:BTO_0000765 a rdfs:Class ;
  rdfs:label "exocrine gland" ;
  rdfs:comment "An externally secreting gland, such as a salivary gland or sweat gland that releases its secretions directly or through a duct." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0000302 a rdfs:Class ;
  rdfs:label "ring gland" ;
  rdfs:comment "Hormonal cells involved in the production and release of ecdysone and juvenile hormone. In higher Diptera, a glandular organ surrounding the aorta just above the brain, formed by combining o the corpora cardiaca and the corpora allata and the thoracic glands." .

obo:BTO_0005301 a rdfs:Class ;
  rdfs:label "NPrEC cell" ;
  rdfs:comment "An immortalized primary normal human prostate epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002290 , obo:BTO_0002398 .

obo:BTO_0005665 a rdfs:Class ;
  rdfs:label "COGA-13 cell" ;
  rdfs:comment "Human colon cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002891 a rdfs:Class ;
  rdfs:label "neural stem cell line" .

obo:BTO_0002587 a rdfs:Class ;
  rdfs:label "NCI-H295 cell" ;
  rdfs:comment "Pluripotent adrenocortical carcinoma cell line." .

obo:BTO_0001907 a rdfs:Class ;
  rdfs:label "P3/NS1/1-Ag4.1 cell" ;
  rdfs:comment "Mouse myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0001889 a rdfs:Class ;
  rdfs:label "FTC-133 cell" ;
  rdfs:comment "Human thyroid carcinoma cell line; obtained from a lymph node metastasis of a follicular thyroid carcinoma from a 42-year-old male." ;
  rdfs:subClassOf obo:BTO_0003874 .

obo:BTO_0002926 a rdfs:Class ;
  rdfs:label "tracheobronchial epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0002637 .

obo:BTO_0000199 a rdfs:Class ;
  rdfs:label "cardiac muscle" ;
  rdfs:comment "The principal muscle tissue of the vertebrate heart made up of striated fibers that appear to be separated from each other under the electron microscope but that function in long-term rhythmic contraction as if in protoplasmic continuity." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0006538 a rdfs:Class ;
  rdfs:label "GSC23 cell" ;
  rdfs:comment "Human glioblastoma stem cell line, derived from human primary glioblastoma tissues." ;
  rdfs:subClassOf obo:BTO_0006001 .

obo:BTO_0003104 a rdfs:Class ;
  rdfs:label "pro-B-lymphocyte" ;
  rdfs:comment "B cell differentiation and maturation occurs at the progression from pro-B to pre-B and into the mature B cell stages." ;
  rdfs:subClassOf obo:BTO_0000776 .

obo:BTO_0005889 a rdfs:Class ;
  rdfs:label "WIF-B cell" ;
  rdfs:comment "A highly differentiated and polarized rat hepatoma/human fibroblast hybrid, which forms abundant bile canalicular structures." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0004163 a rdfs:Class ;
  rdfs:label "MC-38 cell" ;
  rdfs:comment "Murine highly tumorigenic colon adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0002035 a rdfs:Class ;
  rdfs:label "U-251MG cell" ;
  rdfs:comment "Human glioma cell line. Morphology: glial; Species: human; Tumor: glioma." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0001199 a rdfs:Class ;
  rdfs:label "EBTr (NBL-4) cell" ;
  rdfs:comment "Embryonic bovine, tracheal cell line; established from a male cow (Bos taurus) embryo." ;
  rdfs:subClassOf obo:BTO_0000669 , obo:BTO_0004641 .

obo:BTO_0006283 a rdfs:Class ;
  rdfs:label "prechordal mesendoderm" ;
  rdfs:subClassOf obo:BTO_0003953 .

obo:BTO_0005174 a rdfs:Class ;
  rdfs:label "Mel120 cell" ;
  rdfs:comment "Human metastatic melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006069 a rdfs:Class ;
  rdfs:label "OR-6 cell" ;
  rdfs:comment "HuH-7 derived ribavirin-resistant cell line." .

obo:BTO_0002795 a rdfs:Class ;
  rdfs:label "culture condition:glucose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000571 a rdfs:Class ;
  rdfs:label "hemocyte" ;
  rdfs:comment "A blood cell especially of an invertebrate animal." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0004040 a rdfs:Class ;
  rdfs:label "ML-5 cell" ;
  rdfs:comment "Human gynecologic ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0003632 a rdfs:Class ;
  rdfs:label "cervicovaginal fluid" ;
  rdfs:comment "The fluid of the uterine cervix and the vagina." .

obo:BTO_0003361 a rdfs:Class ;
  rdfs:label "anterior visceral endoderm" ;
  rdfs:comment "The anterior visceral endoderm (AVE) is an extra-embryonic tissue required for specifying anterior pattern in the mouse embryo." ;
  rdfs:subClassOf obo:BTO_0000315 .

obo:BTO_0005507 a rdfs:Class ;
  rdfs:label "culture condition:H2/sulfate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004438 a rdfs:Class ;
  rdfs:label "HSCC cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002024 .

obo:BTO_0000230 a rdfs:Class ;
  rdfs:label "subarachnoid space" ;
  rdfs:comment "The space between the arachnoidea mater and the pia mater, containing cerebrospinal fluid and bridged by delicate trabeculae." .

obo:BTO_0003051 a rdfs:Class ;
  rdfs:label "MBA-15 cell" ;
  rdfs:comment "Bone marrow derived osteogenic cell line." ;
  rdfs:subClassOf obo:BTO_0002052 .

obo:BTO_0005397 a rdfs:Class ;
  rdfs:label "SH-EP cell" ;
  rdfs:comment "The SHEP human neuroblastoma cell line was subcloned from SK-N-SH." .

obo:BTO_0001484 a rdfs:Class ;
  rdfs:label "nervous system" ;
  rdfs:comment "The nervous system is essentially a biological information highway, and is responsible for controlling all the biological processes and movement in the body, and can also receive information and interpret it via electrical signals which are used in this nervous system. It consists of the Central Nervous System (CNS), essentially the processing area and the Peripheral Nervous System which detects and sends electrical impulses that are used in the nervous system." .

obo:BTO_0003019 a rdfs:Class ;
  rdfs:label "NCI-H345 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0000573 a rdfs:Class ;
  rdfs:label "artery" ;
  rdfs:comment "Any of the tubular branching muscular- and elastic-walled vessels that carry blood from the heart through the body." ;
  rdfs:subClassOf obo:BTO_0001102 .

obo:BTO_0006029 a rdfs:Class ;
  rdfs:label "Hep-G2/ADM cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line. Multidrug resistant subline of Hep-G2." .

obo:BTO_0002691 a rdfs:Class ;
  rdfs:label "neuroendocrine cell" ;
  rdfs:comment "Neuroendocrine cells are cells that receive neuronal input (neurotransmitters released by nerve cells) and, as a consequence of this input, release message molecules (hormones) to the blood. An example of a neuroendocrine cell is the cell of the adrenal medulla which releases adrenalin to the blood. The major center of neuroendocrine integration in the body is found in the hypothalamus and the pituitary gland. Here hypothalamic neurosecretory cells release factors to the blood." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0004633 a rdfs:Class ;
  rdfs:label "invasive breast apocrine carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0002326 .

obo:BTO_0001221 a rdfs:Class ;
  rdfs:label "sciatic nerve" ;
  rdfs:comment "The largest nerve of the body: origin, sacral plexus-L4-S3; it leaves the pelvis through the greater sciatic foramen; branches, divides into the tibial and common peroneal nerves, usually in lower third of thigh; distribution-see individual branches, in this table; modality, general sensory and motor." ;
  rdfs:subClassOf obo:BTO_0000925 .

obo:BTO_0004203 a rdfs:Class ;
  rdfs:label "RIE-1 cell" ;
  rdfs:comment "Rat intestinal epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0000003 .

obo:BTO_0002448 a rdfs:Class ;
  rdfs:label "basal telencephalon" ;
  rdfs:comment "The region of the telencephalon lying deep in the cerebral hemispheres." .

obo:BTO_0000888 a rdfs:Class ;
  rdfs:label "muscle fibre" ;
  rdfs:comment "An elongated contractile cell that forms the muscles of the body." .

obo:BTO_0001783 a rdfs:Class ;
  rdfs:label "pulvinus" ;
  rdfs:comment "A mass of large thin-walled cells surrounding a vascular strand at the base of a petiole or petiolule and functioning in turgor movements of leaves or leaflets." .

obo:BTO_0004973 a rdfs:Class ;
  rdfs:label "Hodgkin lymphoma cell line" ;
  rdfs:comment "A disease of the lymph nodes named after the English physician Thomas Hodgkin." ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0002826 a rdfs:Class ;
  rdfs:label "SVEC4-10 cell" ;
  rdfs:comment "Mouse vascular endothelial cell line. SVEC4-10 is an endothelial cell line derived by SV40 (strain 4A) transformation of endothelial cells from axillary lymph node vessels." ;
  rdfs:subClassOf obo:BTO_0001973 .

obo:BTO_0002778 a rdfs:Class ;
  rdfs:label "rostral ventrolateral medulla" .

obo:BTO_0005123 a rdfs:Class ;
  rdfs:label "ovarian cyst fluid" ;
  rdfs:comment "Ovarian cysts are small fluid-filled sacs that develop in a woman's ovaries." .

obo:BTO_0001849 a rdfs:Class ;
  rdfs:label "urinary bladder smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0000909 a rdfs:Class ;
  rdfs:label "myxospore" ;
  rdfs:comment "A spore in the fruiting body of a slime mold." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0002751 a rdfs:Class ;
  rdfs:label "PC6-3 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0002169 a rdfs:Class ;
  rdfs:label "anterior commissure" ;
  rdfs:comment "A bundle of myelinated nerve fibers passing transversely through the lamina terminalis and connecting symmetrical parts of the two cerebral hemispheres; it consists of a smaller anterior part (pars anterior commissurae anterioris) and a larger posterior part (pars posterior commissurae anterioris)." .

obo:BTO_0001563 a rdfs:Class ;
  rdfs:label "vastus lateralis" ;
  rdfs:comment "The division of the quadriceps muscle that covers the outer anterior aspect of the femur, arises chiefly from the femur, and inserts into the outer border of the patella by a flat tendon which blends with that of the other divisions of the muscle and sends an expansion to the capsule of the knee." .

obo:BTO_0005538 a rdfs:Class ;
  rdfs:label "culture condition:copper-depleted medium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004347 a rdfs:Class ;
  rdfs:label "lateral entorhinal cortex" ;
  rdfs:comment "The entorhinal cortex (EC) is an important memory center in the brain. In rodents, the EC is located at the caudal end of the temporal lobe. In primates it is located at the rostral end of the temporal lobe and stretches dorsolaterally. It is usually divided into medial and lateral regions with three bands with distinct properties and connectivity running perpendicular across the whole area." .

obo:BTO_0005716 a rdfs:Class ;
  rdfs:label "Me4405 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002288 a rdfs:Class ;
  rdfs:label "GLHR-15 cell" ;
  rdfs:comment "Immortalized cell line of primary granulosa cells, isolated from 25-day-old immature rats and transfected with SV40 DNA, Ha-ras, and LH/CG receptor expression plasmid." ;
  rdfs:subClassOf obo:BTO_0002285 .

obo:BTO_0001690 a rdfs:Class ;
  rdfs:label "B-cell lymphoma cell" ;
  rdfs:comment "A cell of a group of heterogeneous lymphoid tumors generally expressing one or more B-cell antigens or representing malignant transformations of B-lymphocytes." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0001439 a rdfs:Class ;
  rdfs:label "venom" ;
  rdfs:comment "Poisonous matter normally secreted by some animals (as snakes, scorpions, or bees) and transmitted to prey or an enemy chiefly by biting or stinging; broadly: material that is poisonous." .

obo:BTO_0000631 a rdfs:Class ;
  rdfs:label "culture condition:inositol-deficient-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000136 a rdfs:Class ;
  rdfs:label "bronchoalveolar system" ;
  rdfs:comment "System pertaining to a bronchus and alveoli." .

obo:BTO_0005425 a rdfs:Class ;
  rdfs:label "NCI-H2170 cell" ;
  rdfs:comment "Human lung squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0002897 a rdfs:Class ;
  rdfs:label "IM-9 cell" ;
  rdfs:comment "Human B lymphoblastoid cell line (from patient with multiple myeloma); established from the bone marrow of a woman with multiple myeloma in 1967. Although derived from the blood of a patient with multiple myeloma, this line has been shown to be an EBV-transformed B lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0000727 , obo:BTO_0002062 .

obo:BTO_0005206 a rdfs:Class ;
  rdfs:label "middle cerebral artery" ;
  rdfs:comment "The middle cerebral artery (MCA) is one of the three major paired arteries that supplies blood to the cerebrum." ;
  rdfs:subClassOf obo:BTO_0005205 .

obo:BTO_0000419 a rdfs:Class ;
  rdfs:label "respiratory epithelium" ;
  rdfs:comment "Epithelium of the respiratory portion of the bronchial tree." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000927 a rdfs:Class ;
  rdfs:label "nerve trunk" ;
  rdfs:comment "The main stem of a nerve, consisting of a bundle of nerve fibers bound together by a tough sheet of connective tissue." .

obo:BTO_0005756 a rdfs:Class ;
  rdfs:label "decidual stromal cell" ;
  rdfs:comment "Decidual stromal cells are the main cellular component of the human decidua." ;
  rdfs:subClassOf obo:BTO_0002770 .

obo:BTO_0003538 a rdfs:Class ;
  rdfs:label "MIN6-m14 cell" ;
  rdfs:comment "Glucose-unresponsive subline of the mouse insulinoma-derived cell line MIN6." .

obo:BTO_0004613 a rdfs:Class ;
  rdfs:label "sebocyte" ;
  rdfs:comment "These cells form sebaceous glands. Sebocytes are epithelial cells that originate from a basal cell layer at the periphery of the gland." .

obo:BTO_0000847 a rdfs:Class ;
  rdfs:label "melanocyte" ;
  rdfs:comment "An epidermal cell that produces melanin." ;
  rdfs:subClassOf obo:BTO_0001470 .

obo:BTO_0002915 a rdfs:Class ;
  rdfs:label "rhabdomyocyte" ;
  rdfs:comment "Large single cells, either cylindrical or prismatic in shape, that form the basic unit of muscle tissue. They consist of a soft contractile substance enclosed in a tubular sheath." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0006187 a rdfs:Class ;
  rdfs:label "venous blood" ;
  rdfs:comment "Blood found in the veins. Except in the pulmonary vein venous blood is rich in carbon dioxide and poor in oxygen." ;
  rdfs:subClassOf obo:BTO_0000089 .

obo:BTO_0005323 a rdfs:Class ;
  rdfs:label "culture condition:1-hydroxy-2-naphthoic acid-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001377 a rdfs:Class ;
  rdfs:label "thymus lymphoma cell line" ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0001856 a rdfs:Class ;
  rdfs:label "vestibular labyrinth" ;
  rdfs:comment "The part of the membranous labyrinth that includes the utricle and saccule lodged within the vestibule and the semicircular ducts lodged eccentrically in the corresponding canals." .

obo:BTO_0003800 a rdfs:Class ;
  rdfs:label "PCCL-3 cell" ;
  rdfs:comment "Normal rat thyroid cell line." ;
  rdfs:subClassOf obo:BTO_0001876 .

obo:BTO_0006058 a rdfs:Class ;
  rdfs:label "Tca-8113 cell" ;
  rdfs:comment "Human tongue squamous cell carcinoma cell line." .

obo:BTO_0005897 a rdfs:Class ;
  rdfs:label "UACC-2534 cell" ;
  rdfs:comment "Metastatic patient-derived human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006549 a rdfs:Class ;
  rdfs:label "MARC-145 cell" ;
  rdfs:comment "Monkey kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0000364 a rdfs:Class ;
  rdfs:label "stratum lucidum" ;
  rdfs:comment "A thin somewhat translucent layer of cells lying superficial to the stratum granulosum and under the stratum corneum especially in thickened parts of the epidermis." .

obo:BTO_0005322 a rdfs:Class ;
  rdfs:label "chronic myelogenous leukemia progenitor cell" ;
  rdfs:comment "A leukemic stem cell." ;
  rdfs:subClassOf obo:BTO_0004178 .

obo:BTO_0001128 a rdfs:Class ;
  rdfs:label "prostasome" ;
  rdfs:comment "Prostasomes are submicron, membrane-surrounded organelles produced by the epithelial cells of the human prostate gland and are present in appreciable amounts in normal human semen." .

obo:BTO_0003176 a rdfs:Class ;
  rdfs:label "inner nuclear layer" ;
  rdfs:comment "The layer of the retina composed of the cell bodies of bipolar cells, horizontal cells, and some of the cell bodies of amacrine cells." .

obo:BTO_0005282 a rdfs:Class ;
  rdfs:label "WEHI-3B cell" ;
  rdfs:comment "A macrophage-like myelomonocytic leukemia cell line established from inbred BALB/c mice." .

obo:BTO_0002381 a rdfs:Class ;
  rdfs:label "MKN-28 cell" ;
  rdfs:comment "Well differentiated human gastric adenocarcinoma cell line." .

obo:BTO_0004864 a rdfs:Class ;
  rdfs:label "HMC cell" ;
  rdfs:comment "Human mesangial cell line." ;
  rdfs:subClassOf obo:BTO_0003581 .

obo:BTO_0006457 a rdfs:Class ;
  rdfs:label "UM-UC-1 cell" ;
  rdfs:comment "Human bladder transitional cell carcinoma  cell." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0003231 a rdfs:Class ;
  rdfs:label "SHG-44 cell" ;
  rdfs:comment "Human glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0006291 a rdfs:Class ;
  rdfs:label "Mbeta16tsA cell" ;
  rdfs:comment "Wild-type mouse embryonic fibroblast cell line Mbeta16tsA." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0005829 a rdfs:Class ;
  rdfs:label "frontoparietal cortex" ;
  rdfs:comment "Relating to both frontal and parietal bones of the cranium." .

obo:BTO_0004152 a rdfs:Class ;
  rdfs:label "UACC-62 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005906 a rdfs:Class ;
  rdfs:label "FU-97 cell" ;
  rdfs:comment "Human stomach cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0004360 a rdfs:Class ;
  rdfs:label "angiomyolipoma cell" ;
  rdfs:comment "A benign tumor containing vascular, adipose, and muscle elements. It occurs most often in the kidney with smooth muscle elements (angiolipoleiomyoma) in association with tuberous sclerosis." ;
  rdfs:subClassOf obo:BTO_0000680 .

obo:BTO_0004277 a rdfs:Class ;
  rdfs:label "scleral lamina cribrosa" ;
  rdfs:comment "The perforated part of the sclera through which pass the axons of the retinal ganglion cells." .

obo:BTO_0004744 a rdfs:Class ;
  rdfs:label "hair cell" ;
  rdfs:comment "Hair cells are the sensory receptors of both the auditory system and the vestibular system in all vertebrates. In mammals, the auditory hair cells are located within the organ of Corti on a thin basilar membrane in the cochlea of the inner ear." .

obo:BTO_0000454 a rdfs:Class ;
  rdfs:label "3T6-Swiss albino cell" ;
  rdfs:comment "The 3T6 cell line is a collagen and hyaluronic acid secreting line established by G. Todaro and H. Green in 1963 from disaggregated Swiss mouse embryos." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0003617 a rdfs:Class ;
  rdfs:label "peritoneal exudate" ;
  rdfs:comment "A term most commonly used to describe the fluid drained from the peritoneal cavity some time after the injection of an irritant solution. For example: a standard method for obtaining neutrophil leucocytes is to inject intraperitoneally saline with glycogen (to activate complement) and drain off the leucocyte rich peritoneal exudate some hours later." .

obo:BTO_0000807 a rdfs:Class ;
  rdfs:label "chorionic cell line" .

obo:BTO_0006489 a rdfs:Class ;
  rdfs:label "brood pouch" ;
  rdfs:comment "A sac or cavity of the body of an animal where the eggs or embryos are received and undergo a part of their development." .

obo:BTO_0004214 a rdfs:Class ;
  rdfs:label "SF-539 cell" ;
  rdfs:comment "Human glial tumor cell line; originated from grade IV human glioblastoma biopsy specimens." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0000785 a rdfs:Class ;
  rdfs:label "lymphoma cell" ;
  rdfs:comment "A tumor cell of lymphoid tissue." ;
  rdfs:subClassOf obo:BTO_0000580 .

obo:BTO_0000899 a rdfs:Class ;
  rdfs:label "myeloma cell line" ;
  rdfs:subClassOf obo:BTO_0000583 .

obo:BTO_0003025 a rdfs:Class ;
  rdfs:label "NCI-H128 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005973 a rdfs:Class ;
  rdfs:label "Muellerian body" ;
  rdfs:comment "One of the minute nitrogenous and oily glands on the leaves of a myrmecophyte, Cecropia adenopus serving as food for the symbiotic ants that inhabit the plant." ;
  rdfs:subClassOf obo:BTO_0005418 .

obo:BTO_0002561 a rdfs:Class ;
  rdfs:label "OVCA-4 cell" ;
  rdfs:comment "Human ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004994 a rdfs:Class ;
  rdfs:label "SK-MEL-110 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0002661 a rdfs:Class ;
  rdfs:label "auditory vesicle" ;
  rdfs:comment "The saccular invagination of ectoderm from which the vertebrate inner ear develops." ;
  rdfs:subClassOf obo:BTO_0000315 .

obo:BTO_0006018 a rdfs:Class ;
  rdfs:label "CT26.WT cell" ;
  rdfs:comment "A clone of CT-26 cell line." .

obo:BTO_0001925 a rdfs:Class ;
  rdfs:label "longissimus lumborum" ;
  rdfs:comment "Lumbar muscle that extends and rotates the vertebral column." .

obo:BTO_0003624 a rdfs:Class ;
  rdfs:label "oronasal squamous cell carcinoma cell" ;
  rdfs:comment "Cancer cell relating to the mouth and nose." ;
  rdfs:subClassOf obo:BTO_0001289 , obo:BTO_0001774 .

obo:BTO_0001665 a rdfs:Class ;
  rdfs:label "HB611 cell" ;
  rdfs:comment "Human hepatoblastoma-derived cell line that produces HBV." ;
  rdfs:subClassOf obo:BTO_0001664 .

obo:BTO_0006462 a rdfs:Class ;
  rdfs:label "SU-DHL-4 cell" ;
  rdfs:comment "B cell lymphoma cell line, established from the peritoneal effusion of a 38-year-old man with B-NHL (diffuse large cell, cleaved cell type; originally described as \"diffuse histiocytic lymphoma\") in 1975." ;
  rdfs:subClassOf obo:BTO_0006365 .

obo:BTO_0004725 a rdfs:Class ;
  rdfs:label "embryonic fibroblast" ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0001817 a rdfs:Class ;
  rdfs:label "stolon tip" .

obo:BTO_0000043 a rdfs:Class ;
  rdfs:label "cerebellar cortex" ;
  rdfs:comment "The superficial gray matter of the cerebellum. It consists of three layers, the stratum moleculare, stratum granulosum, and stratum purkinjense." .

obo:BTO_0000526 a rdfs:Class ;
  rdfs:label "glioma cell" ;
  rdfs:comment "A tumor cell originating in the neuroglia of the brain or spinal cord." .

obo:BTO_0000938 a rdfs:Class ;
  rdfs:label "neuron" ;
  rdfs:comment "A grayish or reddish granular cell with specialized processes that is the fundamental functional unit of nervous tissue." .

obo:BTO_0005459 a rdfs:Class ;
  rdfs:label "GP-202 cell" ;
  rdfs:comment "Human gastric carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0004574 a rdfs:Class ;
  rdfs:label "dermal microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0003123 .

obo:BTO_0004905 a rdfs:Class ;
  rdfs:label "hair follicle bulge stem cell" ;
  rdfs:comment "The putative bulge stem cells can contribute to the epidermis, outer root sheath, inner root sheath, hair shaft and sebaceous gland." .

obo:BTO_0001671 a rdfs:Class ;
  rdfs:label "J-82 cell" ;
  rdfs:comment "Human bladder tumor (transitional cell carcinoma) cell line." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0001788 a rdfs:Class ;
  rdfs:label "pars intermedia" ;
  rdfs:comment "The intermediate part of adenohypophysis: an ill-defined region between the two lobes of the hypophysis; some systems of nomenclature consider it part of the neurohypophysis. In humans a defined structure develops during embryogenesis, but only scattered cells are retained when the gland matures." .

obo:BTO_0005097 a rdfs:Class ;
  rdfs:label "skin stem cell" ;
  rdfs:comment "Skin stem cells occur in the basal layer of the epidermis and at the base of hair follicles." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0004693 a rdfs:Class ;
  rdfs:label "regio parietalis capitis" ;
  rdfs:comment "The surface region of the head corresponding to the outlines of the underlying parietal bone." .

obo:BTO_0006107 a rdfs:Class ;
  rdfs:label "endometrial luminal epithelium" .

obo:BTO_0001713 a rdfs:Class ;
  rdfs:label "dorsum" ;
  rdfs:comment "The back; especially : the entire dorsal surface of an animal." .

obo:BTO_0002790 a rdfs:Class ;
  rdfs:label "phloem parenchyma cell" .

obo:BTO_0005649 a rdfs:Class ;
  rdfs:label "culture condition:isopropanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005436 a rdfs:Class ;
  rdfs:label "panicle" ;
  rdfs:comment "A branched indeterminate inflorescence in which the branches are racemes, so that each flower has its own stalk attached to the branch. Oats and sorghum have panicles." ;
  rdfs:subClassOf obo:BTO_0000628 .

obo:BTO_0002487 a rdfs:Class ;
  rdfs:label "metacyclic form" ;
  rdfs:comment "The parasite (Leishmania or Trypanosoma) differentiates into its infective, but non-replicative, metacyclic form." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0002868 a rdfs:Class ;
  rdfs:label "urinary bladder transitional cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002869 .

obo:BTO_0001803 a rdfs:Class ;
  rdfs:label "retrocerebral complex" ;
  rdfs:comment "Corpora allata with Corpora cardiaca form the retrocerebral complex, a neurosecretory organ." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0000098 a rdfs:Class ;
  rdfs:label "astroblast" ;
  rdfs:comment "An embryonic astrocyte." ;
  rdfs:subClassOf obo:BTO_0000930 .

obo:BTO_0005917 a rdfs:Class ;
  rdfs:label "NUGC-4 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0004144 a rdfs:Class ;
  rdfs:label "Lovo-273X17 cell" ;
  rdfs:comment "Colorectal cancer cell line." .

obo:BTO_0003368 a rdfs:Class ;
  rdfs:label "frontal gland" ;
  rdfs:comment "In Isoptera, a large median gland beneath the integument of the head in certain soldier-termites, opening through the fontanelle or frontal pore, which produces secretions." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0006265 a rdfs:Class ;
  rdfs:label "MR49F cell" ;
  rdfs:comment "Enzalutamide-resistant prostate cancer cell line." .

obo:BTO_0006562 a rdfs:Class ;
  rdfs:label "RMA cell" ;
  rdfs:comment "Mouse T-lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0003896 a rdfs:Class ;
  rdfs:label "CarB cell" ;
  rdfs:comment "Mouse skin carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003894 .

obo:BTO_0003710 a rdfs:Class ;
  rdfs:label "WM-451Lu cell" ;
  rdfs:comment "Human metastatic melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005492 a rdfs:Class ;
  rdfs:label "MT-2 cell" ;
  rdfs:comment "Human lymphoblastic T-lymphocyte cell line, carrying the human T-cell leukemia virus type I." ;
  rdfs:subClassOf obo:BTO_0001045 .

obo:BTO_0004733 a rdfs:Class ;
  rdfs:label "gravid adult" ;
  rdfs:comment "Containing a developing embryo, fetus, or unborn offspring within the body." ;
  rdfs:subClassOf obo:BTO_0001043 .

obo:BTO_0000672 a rdfs:Class ;
  rdfs:label "hindbrain" ;
  rdfs:comment "The posterior of the three primary divisions of the developing vertebrate brain or the corresponding part of the adult brain that includes the cerebellum, the medulla oblongata, and in mammals the pons and that controls autonomic functions and equilibrium." .

obo:BTO_0004072 a rdfs:Class ;
  rdfs:label "middle ear squamous cell carcinoma cell line" ;
  rdfs:comment "Squamous cell carcinoma of the middle ear (MESCC) is an uncommon tumor and is associated with a history of long-term chronic otitis media (COM) in most cases." ;
  rdfs:subClassOf obo:BTO_0002024 .

obo:BTO_0004784 a rdfs:Class ;
  rdfs:label "HFF-1 cell" ;
  rdfs:comment "Human normal foreskin fibroblast cell line; pooled from two male newborn individuals." ;
  rdfs:subClassOf obo:BTO_0002245 .

obo:BTO_0001194 a rdfs:Class ;
  rdfs:label "rumen" ;
  rdfs:comment "The large first compartment of the stomach of a ruminant in which cellulose is broken down by the action of symbiotic microorganisms." ;
  rdfs:subClassOf obo:BTO_0000480 .

obo:BTO_0006161 a rdfs:Class ;
  rdfs:label "pontocerebellar fiber" ;
  rdfs:comment "The pontocerebellar fibers are the second order neuron fibers of the corticopontocerebellar tracts that cross to the other side of the pons and run within the middle cerebellar peduncles, from the pons to the contralateral cerebellum." .

obo:BTO_0006176 a rdfs:Class ;
  rdfs:label "middle temporal gyrus" ;
  rdfs:comment "The middle the three longitudinal gyri that cover the lateral surface of the temporal lobe." ;
  rdfs:subClassOf obo:BTO_0006178 .

obo:BTO_0005092 a rdfs:Class ;
  rdfs:label "chondrogenic cell" .

obo:BTO_0001593 a rdfs:Class ;
  rdfs:label "osteoblast" ;
  rdfs:comment "A cell from which bone develops; a bone-forming cell." ;
  rdfs:subClassOf obo:BTO_0002050 .

obo:BTO_0001086 a rdfs:Class ;
  rdfs:label "embryonic stem cell" ;
  rdfs:comment "Totipotent cell cultured from early embryo. Have the advantage that following modification in vitrothey can be used to produce chimeric embryos and thus transgenic animals." ;
  rdfs:subClassOf obo:BTO_0006078 .

obo:BTO_0001383 a rdfs:Class ;
  rdfs:label "alveolar bone" ;
  rdfs:comment "The thin layer of bone making up the bony processes of the maxilla and mandible, and surrounding and containing the teeth; it is pierced by many small openings through which blood vessels, lymphatics, and nerve fibers pass." .

obo:BTO_0000634 a rdfs:Class ;
  rdfs:label "integument" ;
  rdfs:comment "Something that covers or encloses; especially: an enveloping layer (as a skin, membrane, or husk) of an organism or one of its parts." .

obo:BTO_0001633 a rdfs:Class ;
  rdfs:label "lens nucleus" ;
  rdfs:comment "The core of the crystalline lens, surrounded by the cortex." .

obo:BTO_0005128 a rdfs:Class ;
  rdfs:label "M12 prostate cancer cell" ;
  rdfs:comment "Highly tumorigenic, metastatic human prostate cell line. The M12 line was derived from the P69 line by selection for tumor formation in nude mice and is tumorigeneic and metastatic." .

obo:BTO_0005201 a rdfs:Class ;
  rdfs:label "brain endothelial cell" .

obo:BTO_0002347 a rdfs:Class ;
  rdfs:label "metatarsal bone" ;
  rdfs:comment "Any of the five bones extending from the tarsus to the phalanges of the toes, being numbered in the same sequence from the most medial to the most lateral." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0003930 a rdfs:Class ;
  rdfs:label "ARK-B cell" ;
  rdfs:comment "Multiple myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0003097 a rdfs:Class ;
  rdfs:label "external male genital organ" ;
  rdfs:comment "The external genitalia in the male, comprising the penis, scrotum, and urethra." .

obo:BTO_0000073 a rdfs:Class ;
  rdfs:label "culture condition:aniline-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000776 a rdfs:Class ;
  rdfs:label "B-lymphocyte" ;
  rdfs:comment "Any of the lymphocytes that have antibody molecules on the surface and comprise the antibody-secreting plasma cells when mature." ;
  rdfs:subClassOf obo:BTO_0000775 .

obo:BTO_0003116 a rdfs:Class ;
  rdfs:label "minor vestibular gland" ;
  rdfs:comment "Small mucous glands opening upon the vestibular mucous membrane between the urethral and the vaginal orifice." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0004057 a rdfs:Class ;
  rdfs:label "fruit juice" ;
  rdfs:comment "Juice produced by squeezing or crushing fruit." ;
  rdfs:subClassOf obo:BTO_0000659 .

obo:BTO_0001799 a rdfs:Class ;
  rdfs:label "pulmonary vein" ;
  rdfs:comment "A vein that carries oxygenated blood from the lungs to the left atrium of the heart." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0001568 a rdfs:Class ;
  rdfs:label "MDA-MB-436 cell" ;
  rdfs:comment "Human breast cancer cell line that expresses high levels of seprase as do the carcinoma cells in tumors of human breast cancer patients." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0004423 a rdfs:Class ;
  rdfs:label "empyema fluid" ;
  rdfs:comment "The presence of pus in a body cavity, especially the pleural cavity." .

obo:BTO_0000624 a rdfs:Class ;
  rdfs:label "culture condition:cyclohexane-1,2-diol-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0003264 a rdfs:Class ;
  rdfs:label "HL-1 cell" ;
  rdfs:comment "A cardiac muscle cell line from the AT-1 mouse atrial cardiomyocyte tumor lineage; established from an adult female Jackson Laboratory-inbred C57BLy6J mouse." ;
  rdfs:subClassOf obo:BTO_0003265 .

obo:BTO_0004853 a rdfs:Class ;
  rdfs:label "PC-3H cell" ;
  rdfs:comment "A subclone of the ATCC PC-3 cell line." .

obo:BTO_0001748 a rdfs:Class ;
  rdfs:label "mandible" ;
  rdfs:comment "1: The lower jaw of a vertebrate animal. 2: Either the upper or lower part of the beak in birds." .

obo:BTO_0001362 a rdfs:Class ;
  rdfs:label "olfactory lobe" ;
  rdfs:comment "An anterior projection of each cerebral hemisphere that is continuous anteriorly with the olfactory nerve; A term applied to the olfactory apparatus on the lower surface of the frontal lobe of the brain. It consists of the olfactory bulb, tract, and trigone." .

obo:BTO_0003961 a rdfs:Class ;
  rdfs:label "NPC-TW02 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." .

obo:BTO_0006308 a rdfs:Class ;
  rdfs:label "TCC-SUP cell" ;
  rdfs:comment "Urinary bladder transitional cell carcinoma cell line; established from the tumor spediment resected from the undifferentiated grade IV urinary bladder transitional cell carcinoma of a 67-year-old woman in 1974." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0004567 a rdfs:Class ;
  rdfs:label "sessile serrated adenoma cell" ;
  rdfs:comment "In gastroenterology, a sessile serrated adenoma is a premalignant flat or sessile lesions of the colon. SSAs are thought to lead to colorectal cancer through the serrated pathway." ;
  rdfs:subClassOf obo:BTO_0003633 .

obo:BTO_0002677 a rdfs:Class ;
  rdfs:label "medial lobe of mushroom body" ;
  rdfs:comment "The Drosophila mushroom bodies (MBs), paired brain structures composed of vertical and medial lobes, achieve their final organization at metamorphosis." .

obo:BTO_0004521 a rdfs:Class ;
  rdfs:label "TIG-3-20 cell" ;
  rdfs:comment "Normal fibroblast cell line derived from Japanese fetal lung." ;
  rdfs:subClassOf obo:BTO_0001242 .

obo:BTO_0002598 a rdfs:Class ;
  rdfs:label "RBA cell" ;
  rdfs:comment "Rattus norvegicus (rat) mammary gland adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0003758 a rdfs:Class ;
  rdfs:label "STAV-AB cell" ;
  rdfs:comment "Human malignant mesothelioma cell line with epithelial differentiation." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0005799 a rdfs:Class ;
  rdfs:label "corticotroph adenoma cell" ;
  rdfs:comment "A pituitary adenoma made up predominantly of corticotrophs. Excessive corticotropin secretion may cause Cushings disease or Nelsons syndrome." ;
  rdfs:subClassOf obo:BTO_0001076 .

obo:BTO_0005946 a rdfs:Class ;
  rdfs:label "sublingual squamous cell carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0001289 , obo:BTO_0002773 .

obo:BTO_0003372 a rdfs:Class ;
  rdfs:label "gametophore" ;
  rdfs:comment "A structure, as in liverworts and mosses, on which gametangia are borne." .

obo:BTO_0001896 a rdfs:Class ;
  rdfs:label "IDH4 cell" ;
  rdfs:comment "SV40-transformed human fibroblast cell line." .

obo:BTO_0005394 a rdfs:Class ;
  rdfs:label "SUM-185 cell" ;
  rdfs:comment "Human breast cancer cell line." .

obo:BTO_0002008 a rdfs:Class ;
  rdfs:label "culture condition:antigen-presenting cell" ;
  rdfs:comment "An antigen-presenting cell is a cell that displays foreign antigen complex with major histocompatibility complex on its surface." ;
  rdfs:subClassOf obo:BTO_0000216 .

obo:BTO_0006350 a rdfs:Class ;
  rdfs:label "polyp" ;
  rdfs:comment "The sessile form of cnidarian (such as a coral or sea anemone) typically having a hollow cylindrical body closed and attached at one end and opening at the other by a central mouth surrounded by tentacles armed with nematocysts." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0003407 a rdfs:Class ;
  rdfs:label "mesopallium ventrale" .

obo:BTO_0002068 a rdfs:Class ;
  rdfs:label "scent gland" ;
  rdfs:comment "A specialized apocrine gland found in many mammals that produces a strong-smelling substance. (Also found in the abdomen of honeybees)." ;
  rdfs:subClassOf obo:BTO_0001162 .

obo:BTO_0003014 a rdfs:Class ;
  rdfs:label "NCI-H520 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0003031 a rdfs:Class ;
  rdfs:label "HCA-7 cell" ;
  rdfs:comment "HCA-7 cell line was originally derived from human colonic carcinoma." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0001697 a rdfs:Class ;
  rdfs:label "olfactory gland" ;
  rdfs:comment "The secretion of this serous glands traps and dissolves odor-producing particles in the nasal cavity to allow for new smells to be detected." ;
  rdfs:subClassOf obo:BTO_0000431 .

obo:BTO_0004564 a rdfs:Class ;
  rdfs:label "thymic dendritic cell" ;
  rdfs:comment "Thymic stromal cells include thymic cortical epithelial cells, thymic medullary epithelial cells, and dendritic cells." ;
  rdfs:subClassOf obo:BTO_0004561 .

obo:BTO_0004838 a rdfs:Class ;
  rdfs:label "muscular coat" ;
  rdfs:comment "An outer layer of smooth muscle surrounding a hollow or tubular organ as the bladder, esophagus, large intestine, small intestine, stomach, ureter, uterus, and vagina that often consists of an inner layer of circular fibers serving to narrow the lumen of the organ and an outer layer of longitudinal fibers serving to shorten its length." ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0003234 a rdfs:Class ;
  rdfs:label "FTO-2B cell" ;
  rdfs:comment "Rat hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001183 a rdfs:Class ;
  rdfs:label "secondary root" ;
  rdfs:comment "The main root of a plant is called the primary root; others are called secondary roots." .

obo:BTO_0003784 a rdfs:Class ;
  rdfs:label "RCCD-2 cell" ;
  rdfs:comment "Rat renal cortical collecting duct cell line." ;
  rdfs:subClassOf obo:BTO_0002658 .

obo:BTO_0001933 a rdfs:Class ;
  rdfs:label "BRL cell" ;
  rdfs:comment "Buffalo rat liver cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0000248 a rdfs:Class ;
  rdfs:label "chondroclast" ;
  rdfs:comment "A giant cell of the class that is believed associated with the absorption of cartilage." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0004730 a rdfs:Class ;
  rdfs:label "myeloid progenitor cell" ;
  rdfs:comment "One of the two stem cells derived from hematopoietic stem cells, the other being the lymphoid progenitor cell. Derived from these myeloid progenitor cells are the erythroid progenitor cells and the myeloid cells." .

obo:BTO_0004827 a rdfs:Class ;
  rdfs:label "hFOB cell" ;
  rdfs:comment "Immortalized human fetal osteoblastic cell line." .

obo:BTO_0002127 a rdfs:Class ;
  rdfs:label "U-138MG cell" ;
  rdfs:comment "Human glioblastoma cell line; established from a 47 years old human male." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004906 a rdfs:Class ;
  rdfs:label "molecular layer" ;
  rdfs:comment "1. The outer layer of the cortex of the cerebellum and cerebrum consisting of a mass of unmyelinated fibers rich in synapses. 2. Either of the two plexiform layers of the retina." .

obo:BTO_0005185 a rdfs:Class ;
  rdfs:label "chondroma cell" ;
  rdfs:comment "A chondroma is a benign cartilaginous tumor, which is encapsulated with a lobular growing pattern. Tumor cells (chondrocytes, cartilaginous cells) resemble normal cells and produce the cartilaginous matrix (amorphous, basophilic material)." .

obo:BTO_0000679 a rdfs:Class ;
  rdfs:label "blood-lymph" ;
  rdfs:comment "Lymph exuded from the blood vessels and not derived from the fluid in the tissue spaces." ;
  rdfs:subClassOf obo:BTO_0000855 .

obo:BTO_0000140 a rdfs:Class ;
  rdfs:label "bone" ;
  rdfs:comment "The hard form of connective tissue that constitutes the majority of the skeleton of most vertebrates; it consists of an organic component (the cells and matrix) and an inorganic, or mineral, component; the matrix contains a framework of collagenous fibers and is impregnated with the mineral component, chiefly calcium phosphate (85 per cent) and calcium carbonate (10 per cent), which imparts the quality of rigidity to bone." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0003184 a rdfs:Class ;
  rdfs:label "NHEM cell" ;
  rdfs:comment "Normal human epidermal melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0005892 a rdfs:Class ;
  rdfs:label "SVOG-3e cell" ;
  rdfs:comment "Immortalized human granulosa cell line." ;
  rdfs:subClassOf obo:BTO_0002285 .

obo:BTO_0005467 a rdfs:Class ;
  rdfs:label "KKU-M139 cell" ;
  rdfs:comment "A human cholangiocarcinoma-derived cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0005318 a rdfs:Class ;
  rdfs:label "cerebrovascular cell" ;
  rdfs:comment "A cell of the vascular system and blood supply of the brain." ;
  rdfs:subClassOf obo:BTO_0003840 .

obo:BTO_0005033 a rdfs:Class ;
  rdfs:label "MV3 cell" ;
  rdfs:comment "Highly tumorigenic and metastatic human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002263 a rdfs:Class ;
  rdfs:label "ventriculus" ;
  rdfs:comment "1. A hollow digestive organ, especially the stomach of certain insects or the gizzard of a bird. 2. The digestive cavity in the body of a sponge." .

obo:BTO_0001705 a rdfs:Class ;
  rdfs:label "vallate papilla" ;
  rdfs:comment "The largest papilla of the tongue, 8 to 12 in number, arranged in the form of a V anterior to the sulcus terminalis of the tongue." .

obo:BTO_0005212 a rdfs:Class ;
  rdfs:label "cervical intraepithelial neoplasia cell" ;
  rdfs:comment "Cervical intraepithelial neoplasia (CIN) is the potentially premalignant transformation and abnormal growth (dysplasia) of squamous cells on the surface of the cervix. CIN is not cancer, and is usually curable. Most cases of CIN remain stable, or are eliminated by the host's immune system without intervention. However a small percentage of cases progress to become cervical cancer, usually cervical squamous cell carcinoma (SCC), if left untreated." .

obo:BTO_0003721 a rdfs:Class ;
  rdfs:label "UT-SCC-2 cell" ;
  rdfs:comment "Oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0004337 a rdfs:Class ;
  rdfs:label "THC-H5D cell" ;
  rdfs:comment "Rapamycin-resistant rat hepatic cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0005168 a rdfs:Class ;
  rdfs:label "JJ012 cell" ;
  rdfs:comment "Human chondrosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0001574 .

obo:BTO_0003902 a rdfs:Class ;
  rdfs:label "MEL-745A cl. DS19 cell" ;
  rdfs:comment "Mouse erythroleukemia cell line transformed by Friend virus." .

obo:BTO_0004644 a rdfs:Class ;
  rdfs:label "culture condition:acenaphthylene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002223 a rdfs:Class ;
  rdfs:label "BW/T200- cell" ;
  rdfs:comment "Mouse T-lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0003769 a rdfs:Class ;
  rdfs:label "A-498 cell" ;
  rdfs:comment "Human kidney carcinoma cell line; established from the kidney carcinoma of a 52-year-old man in 1973." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0003451 a rdfs:Class ;
  rdfs:label "C8PA cell" ;
  rdfs:comment "Lipocytes derived from 293 cell line." ;
  rdfs:subClassOf obo:BTO_0003452 .

obo:BTO_0004997 a rdfs:Class ;
  rdfs:label "non-myelinating Schwann cell" ;
  rdfs:comment "A variety of glial cell that keep unmyelinated peripheral nerve fibres alive." ;
  rdfs:subClassOf obo:BTO_0001220 .

obo:BTO_0003105 a rdfs:Class ;
  rdfs:label "SW-1222 cell" ;
  rdfs:comment "Human colon carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002810 a rdfs:Class ;
  rdfs:label "L8 cell" ;
  rdfs:comment "Rattus norvegicus skeletal muscle myoblast cell line. This line was originally isolated in 1969 from primary rat skeletal muscle cultures; unlike the L6 cell line no carcinogen was used to establish the L8 line." ;
  rdfs:subClassOf obo:BTO_0000256 .

obo:BTO_0005625 a rdfs:Class ;
  rdfs:label "NE-GFP-4C cell" ;
  rdfs:comment "The neuroepithelial cell line NE-GFP-4C was established from the cerebral vesicles of 9-day-old mouse embryos lacking the functional p53 genes." .

obo:BTO_0002386 a rdfs:Class ;
  rdfs:label "GLC-4/ADR cell" ;
  rdfs:comment "Subline of human small cell lung cancer (SCLC) cell line (GLC4) with in vitro acquired resistance to adriamycin (GLC4/ADR)." .

obo:BTO_0003094 a rdfs:Class ;
  rdfs:label "secondary oocyte" ;
  rdfs:comment "The immature reproductive cell prior to fertilization; it is derived from an oogonium, and is called a primary oocyte prior to completion of the first maturation division, and a secondary oocyte between the first and second maturation division." ;
  rdfs:subClassOf obo:BTO_0000964 .

obo:BTO_0005571 a rdfs:Class ;
  rdfs:label "HAE cell" ;
  rdfs:comment "Human airway epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002637 .

obo:BTO_0001759 a rdfs:Class ;
  rdfs:label "molaris" ;
  rdfs:comment "A tooth with a rounded or flattened surface adapted for grinding; specifically: one of the cheek teeth in mammals behind the incisors and canines." ;
  rdfs:subClassOf obo:BTO_0000397 .

obo:BTO_0002960 a rdfs:Class ;
  rdfs:label "HEC-1-A cell" ;
  rdfs:comment "This line was isolated in 1968 and associates from a patient with stage IA endometrial cancer." ;
  rdfs:subClassOf obo:BTO_0003040 .

obo:BTO_0006206 a rdfs:Class ;
  rdfs:label "extravillous cytotrophoblast" ;
  rdfs:comment "Extravillous cytotrophoblast cells are the cells of the outermost layer of the fetal component of the human placenta. The extravillous cytotrophoblast cells located proximal to the villous stroma are proliferating cells." ;
  rdfs:subClassOf obo:BTO_0000322 .

obo:BTO_0000408 a rdfs:Class ;
  rdfs:label "epididymis" ;
  rdfs:comment "A system of ductules emerging posteriorly from the testis that holds sperm during maturation and that forms a tangled mass before uniting into a single coiled duct which is continuous with the vas deferens." ;
  rdfs:subClassOf obo:BTO_0003096 .

obo:BTO_0004358 a rdfs:Class ;
  rdfs:label "sinus node" ;
  rdfs:comment "A small mass of tissue that is embedded in the musculature of the right atrium of higher vertebrates and that originates the impulses stimulating the heartbeat." ;
  rdfs:subClassOf obo:BTO_0004190 .

obo:BTO_0002246 a rdfs:Class ;
  rdfs:label "globus pallidus" ;
  rdfs:comment "The smaller and more medial part of the lentiform nucleus of the brain, separated from the putamen by the lateral medullary lamina. In official anatomic nomenclature, it is divided by the medial medullary lamina into two parts, lateral and medial, both of which have extensive connections with the corpus striatum, thalamus, and mesencephalon. The paleostriatum is the phylogenetically older part of the corpus striatum represented by the globus pallidus." .

obo:BTO_0003582 a rdfs:Class ;
  rdfs:label "SUP-T1 cell" ;
  rdfs:comment "Human T cell lymphoma cell line; established from the pleural effusion of an 8-year-old boy with T-lymphoblastic lymphoma in relapse." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0002502 a rdfs:Class ;
  rdfs:label "kinetoplastid" ;
  rdfs:comment "Pertaining or relating to protozoa of the order Kinetoplastida." ;
  rdfs:subClassOf obo:BTO_0002503 .

obo:BTO_0002041 a rdfs:Class ;
  rdfs:label "KMS-6 cell" ;
  rdfs:comment "Human embryonic fibroblast cell line; established from a 9-weeks-old embryo of Homo sapiens. Normal fibroblasts. Finite lifespan." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0003242 a rdfs:Class ;
  rdfs:label "NCI-H2009 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line; tumor stage 4; derived from metastatic site: lymph node." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0005059 a rdfs:Class ;
  rdfs:label "TZM-bl cell" ;
  rdfs:comment "TZM-bl cells are HeLa-cell derivatives that express high levels of CD4 and both co-receptors CXCR4 and CCR5, and are stably transduced carrying a LTR-driven firefly luciferase as well as a LTR-driven beta-galactosidase cassette." .

obo:BTO_0005809 a rdfs:Class ;
  rdfs:label "HMVEC-dLy cell" ;
  rdfs:comment "Normal human dermal lymphatic microvascular endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0005737 .

obo:BTO_0004983 a rdfs:Class ;
  rdfs:label "MA-104 cell" ;
  rdfs:comment "Widely used continuous monkey kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0003517 a rdfs:Class ;
  rdfs:label "hTERT-HSC cell" ;
  rdfs:comment "Immortalized human hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0005081 a rdfs:Class ;
  rdfs:label "periurethral tissue" ;
  rdfs:comment "Tissue around the urethra." .

obo:BTO_0003463 a rdfs:Class ;
  rdfs:label "inner dental epithelium" ;
  rdfs:comment "Inner enamel epithelium, the columnar epithelial layer of enamel matrix, secreting ameloblasts, of the odontogenic organ of a developing tooth." ;
  rdfs:subClassOf obo:BTO_0001723 .

obo:BTO_0002398 a rdfs:Class ;
  rdfs:label "prostate epithelium cell line" ;
  rdfs:subClassOf obo:BTO_0001019 , obo:BTO_0001120 .

obo:BTO_0001923 a rdfs:Class ;
  rdfs:label "Aristotles lantern" ;
  rdfs:comment "Within the mouth of a sea urchin is an elaborate five-sided jaw structure called Aristotles lantern that can be partially extruded from the mouth. It is able to grind up calcareous exoskeletons of plants and animals." .

obo:BTO_0005644 a rdfs:Class ;
  rdfs:label "culture condition:D-galacturonate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002104 a rdfs:Class ;
  rdfs:label "BE(2)-M17 cell" ;
  rdfs:comment "Human caucasian neuroblastoma cell line. The cell line BE(2)-M17 was isolated from SK-N-BE(2) by limiting dilution." .

obo:BTO_0003795 a rdfs:Class ;
  rdfs:label "periventricular nucleus of hypothalamus" ;
  rdfs:comment "A small nucleus at the base of the hypothalamus, adjacent to the arcuate nucleus." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0002907 a rdfs:Class ;
  rdfs:label "NR-8383 cell" ;
  rdfs:comment "NR8383 (normal rat, August 3, 1983) was established from normal rat alveolar macrophage cells obtained by lung lavage." ;
  rdfs:subClassOf obo:BTO_0000353 , obo:BTO_0002889 .

obo:BTO_0001607 a rdfs:Class ;
  rdfs:label "swim bladder" ;
  rdfs:comment "The air bladder of a fish." ;
  rdfs:subClassOf obo:BTO_0002148 .

obo:BTO_0005548 a rdfs:Class ;
  rdfs:label "HEK-293ET cell" ;
  rdfs:comment "Human embryonic kidney fibroblast cell line expressing EBNA-1 plus SV40 large T-antigen." .

obo:BTO_0004067 a rdfs:Class ;
  rdfs:label "C26-10 cell" ;
  rdfs:comment "Murine colon carcinoma cell line, a clone derived from Colon 26." .

obo:BTO_0004282 a rdfs:Class ;
  rdfs:label "TSA cell" ;
  rdfs:comment "TSA is an aggressive and poorly immunogenic cell line established from a moderately differentiated mammary adenocarcinoma that arose spontaneously in a multiparous BALB/c mouse." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0004734 a rdfs:Class ;
  rdfs:label "HBL-100 cell" ;
  rdfs:comment "Human mammary gland breast carcinoma cell line, established from a 27 years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002767 a rdfs:Class ;
  rdfs:label "GH4-C1 cell" ;
  rdfs:comment "Rat pituitary tumor cell line; established from a pituitary tumor of a 7-month-old female Wistar/Furth rat. Cell line GH4 was subcloned in order to obtain a cell line secreting high amounts of growth hormones." .

obo:BTO_0005581 a rdfs:Class ;
  rdfs:label "vestibular sensory epithelium" ;
  rdfs:comment "The vestibular sensory epithelium is located on the maculae of the saccule and utricle and the cristae of the semicircular canals. The sensory cells are surrounded by supporting cells. Therefore, they do not come into direct contact with the bony base of the cristae." .

obo:BTO_0001040 a rdfs:Class ;
  rdfs:label "petal" ;
  rdfs:comment "The often showy flower component attached just inside the sepals; petals are usually colorful to attract pollinators." .

obo:BTO_0005958 a rdfs:Class ;
  rdfs:label "ovarian follicular epithelium" ;
  rdfs:comment "The ovarian follicular epithelium originates as a few flattened cells derived from the germinal epithelium. The primitive role of the follicular cells appears to be the secretion of the yolk-forming material onto or into the oocyte. Evidence from mammals indicates that the follicular cells may also have a role in converting substances produced elsewhere into female hormones, or estrogens." ;
  rdfs:subClassOf obo:BTO_0000475 .

obo:BTO_0003991 a rdfs:Class ;
  rdfs:label "pleural mesothelioma cell line" ;
  rdfs:subClassOf obo:BTO_0000762 , obo:BTO_0002424 .

obo:BTO_0001899 a rdfs:Class ;
  rdfs:label "stationary phase culture" ;
  rdfs:comment "A cell culture at the plateau of the growth curve after log growth in a culture, during which cell number remains constant. New cells are produced at the same rate as older cells die." ;
  rdfs:subClassOf obo:BTO_0001900 .

obo:BTO_0000510 a rdfs:Class ;
  rdfs:label "hindgut" ;
  rdfs:comment "The caudal portion of the embryonic alimentary canal in vertebrates." .

obo:BTO_0004852 a rdfs:Class ;
  rdfs:label "OV-90 cell" ;
  rdfs:comment "Human ovary malignant papillary serous adenocarcinoma cell line; derived from metastatic site: ascites." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0004175 a rdfs:Class ;
  rdfs:label "MOLM-13 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established from the peripheral blood of a 20-year-old man with acute myeloid leukemia AML FAB M5a at relapse in 1995 after initial myelodysplastic syndromes." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0005947 a rdfs:Class ;
  rdfs:label "sublingual squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002024 , obo:BTO_0003645 .

obo:BTO_0000069 a rdfs:Class ;
  rdfs:label "WISH cell" ;
  rdfs:comment "Human amnion cell line with HeLa markers." .

obo:BTO_0002477 a rdfs:Class ;
  rdfs:label "cecal epithelium" .

obo:BTO_0005565 a rdfs:Class ;
  rdfs:label "embryonic tracheal system" ;
  rdfs:comment "The embryonic tracheal system or the fruitfly is an epithelial tubular network established from defined sets of ectodermal precursor cells." .

obo:BTO_0004911 a rdfs:Class ;
  rdfs:label "erythroid progenitor cell" ;
  rdfs:comment "Committed, erythroid stem cells derived from myeloid stem cells. The progenitor cells develop in two phases: erythroid burst-forming units (bfu-e) followed by erythroid colony-forming units (cfu-e). Bfu-e differentiate into cfu-e on stimulation by erythropoietin, and then further differentiate into erythroblasts when stimulated by other factors." .

obo:BTO_0000802 a rdfs:Class ;
  rdfs:label "alveolar macrophage" ;
  rdfs:comment "Macrophage found in lung and that can be obtained by lung lavage. AM reside in the airway lumen." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0000266 a rdfs:Class ;
  rdfs:label "cob" ;
  rdfs:comment "The central axis/core of the ear (distal end of the lateral branch/ear shoot) upon which the kernels (caryopses) are borne. The cob is similar to the central spike of the tassel (male inflorescence) in that it produces multiple rows of paired spikelets (polystichous phyllotaxy)." ;
  rdfs:subClassOf obo:BTO_0001278 .

obo:BTO_0001962 a rdfs:Class ;
  rdfs:label "T/G HA-VSMC cell" ;
  rdfs:comment "Human Caucasian aorta, normal smooth muscle cell line; established from the normal aorta of an 11 month old child." ;
  rdfs:subClassOf obo:BTO_0001964 .

obo:BTO_0000840 a rdfs:Class ;
  rdfs:label "nose" ;
  rdfs:comment "1a: The part of the face that bears the nostrils and covers the anterior part of the nasal cavity; broadly: this part together with the nasal cavity. 1b: The anterior part of the head at the top or end of the muzzle: snout, proboscis. 2: The vertebrate olfactory organ." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0005358 a rdfs:Class ;
  rdfs:label "Jarques cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0005558 a rdfs:Class ;
  rdfs:label "T/C-28a4 cell" ;
  rdfs:comment "Immortalized human chondrocyte cell line." .

obo:BTO_0004799 a rdfs:Class ;
  rdfs:label "LNCaP-AI cell" ;
  rdfs:comment "Androgen-independent LNCaP cell line. A prostate cancer cell line, that proliferates under androgen-depleted conditions after emerging from long-term, androgen- depleted culture of the androgen-sensitive prostate cancer cell line LNCaP." .

obo:BTO_0004543 a rdfs:Class ;
  rdfs:label "inner medullary collecting duct cell" ;
  rdfs:comment "For the inner medullary collecting duct, the specific cell type is the inner medullary collecting duct cell." .

obo:BTO_0001348 a rdfs:Class ;
  rdfs:label "tail" ;
  rdfs:comment "The rear end or a process or prolongation of the rear end of the body of an animal." .

obo:BTO_0004401 a rdfs:Class ;
  rdfs:label "bronchial smooth muscle" ;
  rdfs:comment "Smooth muscle that is present continuously around the bronchi." ;
  rdfs:subClassOf obo:BTO_0001660 .

obo:BTO_0000295 a rdfs:Class ;
  rdfs:label "WEHI-3 cell" ;
  rdfs:comment "Mouse, BALB/c, monocyte, monocytic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0002332 .

obo:BTO_0000204 a rdfs:Class ;
  rdfs:label "carotid body" ;
  rdfs:comment "A small cluster of chemoreceptive and supporting cells located near the bifurcation of the internal carotid artery. The carotid body, which is richly supplied with fenestrated capillaries, senses the pH, carbon dioxide, and oxygen concentrations in the blood and plays a crucial role in their homeostatic control." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0001365 a rdfs:Class ;
  rdfs:label "thalamus" ;
  rdfs:comment "The largest subdivision of the diencephalon that consists chiefly of an ovoid mass of nuclei in each lateral wall of the third ventricle and functions in the integration of sensory information." .

obo:BTO_0002846 a rdfs:Class ;
  rdfs:label "non-Hodgkin lymphoma cell" ;
  rdfs:comment "A heterogeneous group of malignant lymphomas, the only common feature being an absence of the giant Reed-Sternberg cells characteristic of Hodgkin's disease. They arise from the lymphoid components of the immune system, and present a clinical picture broadly similar to that of Hodgkin's disease except the disease is initially more widespread, with the most common manifestation being painless enlargement of one or more peripheral lymph nodes." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0000706 a rdfs:Class ;
  rdfs:label "large intestine" ;
  rdfs:comment "The more terminal division of the vertebrate intestine that is wider and shorter than the small intestine, typically divided into cecum, colon, and rectum, and concerned especially with the resorption of water and the formation of feces." .

obo:BTO_0001208 a rdfs:Class ;
  rdfs:label "larynx" ;
  rdfs:comment "The modified upper part of the trachea of air-breathing vertebrates that in humans, most other mammals, and a few lower forms contains the vocal cords." .

obo:BTO_0006398 a rdfs:Class ;
  rdfs:label "MCF-10-2A cell" ;
  rdfs:comment "Nontumorigenic human mammary gland cell line from fibrocystic disease. MCA-10-2A was derived from adherent cells in the population. This line was established from the same tumor material as MCF 10A." .

obo:BTO_0002934 a rdfs:Class ;
  rdfs:label "thymic cortex" ;
  rdfs:comment "Histologically, the thymus can be divided into a central medulla and a peripheral cortex which is surrounded by an outer capsule. The cortex and medulla play different roles in the development of T cells. Cells in the thymus can be divided into thymic stromal cells and cells of hematopoietic origin." .

obo:BTO_0002455 a rdfs:Class ;
  rdfs:label "anterior paraventricular nucleus" ;
  rdfs:comment "The anterior of the two nuclei paraventriculares thalami." ;
  rdfs:subClassOf obo:BTO_0002460 .

obo:BTO_0001542 a rdfs:Class ;
  rdfs:label "mesonephron" ;
  rdfs:comment "The excretory organ of the embryo, arising caudal to the pronephros or pronephric rudiments and using its duct; it consists of a long tube in the lower part of the body cavity, running parallel with the vertebral axis and joined at right angles by a row of twisting tubes." .

obo:BTO_0001034 a rdfs:Class ;
  rdfs:label "peritoneal macrophage" ;
  rdfs:comment "Macrophage found in peritoneum and that can be obtained by lavage." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0006189 a rdfs:Class ;
  rdfs:label "protoperithecium" ;
  rdfs:comment "A primordium that when fertilized develops into a perithecium." ;
  rdfs:subClassOf obo:BTO_0002161 .

obo:BTO_0006219 a rdfs:Class ;
  rdfs:label "neuromast" ;
  rdfs:comment "One of the characteristic sensory organs of the lateral lines of fishes and various other lower vertebrates consisting of a cluster of sensory cells connected with nerve fibers." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0000862 a rdfs:Class ;
  rdfs:label "heart ventricle" ;
  rdfs:comment "A chamber of the heart which receives blood from a corresponding atrium and from which blood is forced into the arteries." .

obo:BTO_0001579 a rdfs:Class ;
  rdfs:label "extraocular muscle" ;
  rdfs:comment "Any of six small voluntary muscles that pass between the eyeball and the orbit and control the movement of the eyeball in relation to the orbit." ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0001580 a rdfs:Class ;
  rdfs:label "ejaculatory duct" ;
  rdfs:comment "Either of the paired ducts in the human male that are formed by the junction of the duct from the seminal vesicle with the vas deferens, pass through the prostate, and open into or close to the prostatic utricle." ;
  rdfs:subClassOf obo:BTO_0003096 .

obo:BTO_0004448 a rdfs:Class ;
  rdfs:label "LN-235 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005559 a rdfs:Class ;
  rdfs:label "Caki-dTub cell" ;
  rdfs:comment "Human renal cell carcinoma selected for resistance to 2-deoxytubercidin." .

obo:BTO_0001773 a rdfs:Class ;
  rdfs:label "oocyst" ;
  rdfs:comment "Zygote, specifically a sporozoan zygote undergoing sporogenous development." ;
  rdfs:subClassOf obo:BTO_0000854 .

obo:BTO_0003564 a rdfs:Class ;
  rdfs:label "HUAEC cell" ;
  rdfs:comment "Human neonatal umbilical artery endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003563 .

obo:BTO_0001419 a rdfs:Class ;
  rdfs:label "urine" ;
  rdfs:comment "Waste material that is secreted by the kidney in vertebrates, is rich in end products of protein metabolism together with salts and pigments, and forms a clear amber and usually slightly acid fluid in mammals but is semisolid in birds and reptiles." .

obo:BTO_0003726 a rdfs:Class ;
  rdfs:label "SHP-77 cell" ;
  rdfs:comment "Small cell lung cancer cell line; established in 1977; derived from a non-encapsulated primary lung tumor from the apical portion of the upper lobe of the left lung. This cell line is an unusual undifferentiated large cell variant of small cell lung carcinoma." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0006445 a rdfs:Class ;
  rdfs:label "AF22 cell" ;
  rdfs:comment "Human neuroepithelial stem cell line. Induced pluripotent stem cells (iPSCs) generated from reprogrammed adult fibroblasts (ADF)." ;
  rdfs:subClassOf obo:BTO_0002891 .

obo:BTO_0001354 a rdfs:Class ;
  rdfs:label "telson muscle" .

obo:BTO_0000255 a rdfs:Class ;
  rdfs:label "brain cell line" .

obo:BTO_0002863 a rdfs:Class ;
  rdfs:label "MSS-31 cell" ;
  rdfs:comment "Murine endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0001026 a rdfs:Class ;
  rdfs:label "polymorphonuclear leukocyte" ;
  rdfs:comment "Any fully developed granular leukocyte whose nucleus contains multiple lobes joined by filamentous connections, especially a neutrophil." ;
  rdfs:subClassOf obo:BTO_0000130 , obo:BTO_0001441 .

obo:BTO_0002615 a rdfs:Class ;
  rdfs:label "fascia dentata" ;
  rdfs:comment "The fascia dentata is the earliest stage of the hippocampal circuit. The fascia dentata and the hilus together make up the dentate gyrus." .

obo:BTO_0000685 a rdfs:Class ;
  rdfs:label "Kupffer cell" ;
  rdfs:comment "Large star-shaped or pyramidal cells with a large oval nucleus and a small prominent nucleolus. These intensely phagocytic cells line the walls of the sinusoids of the liver and form a part of the reticuloendothelial system." ;
  rdfs:subClassOf obo:BTO_0000801 , obo:BTO_0005265 .

obo:BTO_0004841 a rdfs:Class ;
  rdfs:label "UCP-3 cell" ;
  rdfs:comment "The UCP-3 cell line is a low metastatic human lung carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0000305 a rdfs:Class ;
  rdfs:label "crypt" ;
  rdfs:comment "A crypt is a deep pit that protrudes down into the connective tissue surrounding the small intestine. The epithelium at the base of the crypt is the site of stem cell proliferation and the differentiated cells move upwards and are shed 3-5 days later at the tips of the villi." .

obo:BTO_0000817 a rdfs:Class ;
  rdfs:label "mammary gland" ;
  rdfs:comment "The specialized accessory gland of the skin of female mammals that secretes milk. In the human female, it is a compound tubuloalveolar gland composed of 15 to 25 lobes arranged radially about the nipple and separated by connective and adipose tissue, each lobe having its own excretory (lactiferous) duct opening on the nipple. The lobes are subdivided into lobules, with the alveolar ducts and alveoli being the secretory portion of the gland." .

obo:BTO_0002115 a rdfs:Class ;
  rdfs:label "tela submucosa tracheae" ;
  rdfs:comment "The tissue underlying the tunica mucosa of the trachea." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0000071 a rdfs:Class ;
  rdfs:label "amoebocyte" ;
  rdfs:comment "A cell (as a phagocyte) having amoeboid form or movements." ;
  rdfs:subClassOf obo:BTO_0001044 , obo:BTO_0002856 .

obo:BTO_0006090 a rdfs:Class ;
  rdfs:label "HCC-1569 cell" ;
  rdfs:comment "Human epithelial breast mammary gland carcinoma cell line; established from a 70 years old black female with TNM stage IV, grade 3, primary metaplastic carcinoma." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002387 a rdfs:Class ;
  rdfs:label "GLC-4/MITO cell" ;
  rdfs:comment "Subline of human small cell lung cancer (SCLC) cell line (GLC4) with in vitro acquired resistance to mitoxantrone (GLC4/MITO)." .

obo:BTO_0002404 a rdfs:Class ;
  rdfs:label "YMB-1 cell" ;
  rdfs:comment "Human breast cancer cell line; established from a 55 year-old human female." .

obo:BTO_0000249 a rdfs:Class ;
  rdfs:label "chondrocyte" ;
  rdfs:comment "Cartilage cells. They make the structural components of cartilage." ;
  rdfs:subClassOf obo:BTO_0000206 .

obo:BTO_0005432 a rdfs:Class ;
  rdfs:label "Bm3-c2 cell" ;
  rdfs:comment "Drosophila melanogaster larval neuronal cell line." .

obo:BTO_0002997 a rdfs:Class ;
  rdfs:label "LAPC-4 cell" ;
  rdfs:comment "Androgen-sensitive prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005700 a rdfs:Class ;
  rdfs:label "culture condition:6-deoxy-6-sulfoglucose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001214 a rdfs:Class ;
  rdfs:label "Yoshida sarcoma cell" ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0001884 a rdfs:Class ;
  rdfs:label "ML-1 cell" ;
  rdfs:comment "Human acute myeloblastic leukaemia cell line from human peripheral blood. Morphology: Myoblast." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004412 a rdfs:Class ;
  rdfs:label "oral lichen planus disease specific cell type" ;
  rdfs:comment "Oral lesions accompanying cutaneous lichen planus or often occurring alone. The buccal mucosa, lips, gingivae, floor of the mouth, and palate are usually affected. Typically, oral lesions consist of radiating white or gray, velvety, threadlike lines, arranged in a reticular pattern, at the intersection of which there may be minute, white, elevated dots or streaks named wickhams striae." .

obo:BTO_0003766 a rdfs:Class ;
  rdfs:label "giant cell tumor cell line" ;
  rdfs:comment "Human fibrous histiocytoma cell line, established from a 29 years old male." ;
  rdfs:subClassOf obo:BTO_0003765 .

obo:BTO_0000740 a rdfs:Class ;
  rdfs:label "myeloid leukemia cell line" ;
  rdfs:comment "A cell line of leukemia characterized by proliferation of myeloid tissue (as of the bone marrow and spleen) and an abnormal increase in the number of granulocytes, myelocytes, and myeloblasts in the circulating blood." ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0000331 a rdfs:Class ;
  rdfs:label "L-929 cell" ;
  rdfs:comment "Mouse connective tissue fibroblast, established from the normal subcutaneous areolar and adipose tissue of a male C3H/An mouse; used as target in TNF detection assays." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0002924 a rdfs:Class ;
  rdfs:label "NHBE cell" ;
  rdfs:comment "Normal human bronchial epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0002688 a rdfs:Class ;
  rdfs:label "vascular cell" ;
  rdfs:comment "A cell of the vascular system." .

obo:BTO_0000256 a rdfs:Class ;
  rdfs:label "myoblast cell line" .

obo:BTO_0005303 a rdfs:Class ;
  rdfs:label "AS-8 cell" ;
  rdfs:comment "Transgenic tobacco cell line lacking alternative oxidase AOX ." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0001138 a rdfs:Class ;
  rdfs:label "somatic embryo" ;
  rdfs:comment "An organized embryonic structure morphologically similar to a zygotic embryo but initiated from somatic non-zygotic cells. Under in vitro conditions, somatic embryos go through developmental processes similar to embryos of zygotic origin." ;
  rdfs:subClassOf obo:BTO_0000379 .

obo:BTO_0000031 a rdfs:Class ;
  rdfs:label "fruit peduncle" ;
  rdfs:comment "A short stalk at the base of a fruit." .

obo:BTO_0002134 a rdfs:Class ;
  rdfs:label "SK-MEL-5 cell" ;
  rdfs:comment "Human caucasian skin melanoma cell line; established from a 24 year old Caucasian female. Derived from: axillary node." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0004821 a rdfs:Class ;
  rdfs:label "NHEM2493 cell" ;
  rdfs:comment "Human primary melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0003437 a rdfs:Class ;
  rdfs:label "MH7A cell" ;
  rdfs:comment "Human rheumatic synovial cell line." ;
  rdfs:subClassOf obo:BTO_0003436 .

obo:BTO_0002074 a rdfs:Class ;
  rdfs:label "stratified epithelium" ;
  rdfs:comment "Epithelium in which the cells are arranged in several layers." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003370 a rdfs:Class ;
  rdfs:label "craniofacial region" ;
  rdfs:comment "Relating to both the face and the cranium." .

obo:BTO_0000845 a rdfs:Class ;
  rdfs:label "meiotic cell" ;
  rdfs:comment "A cell that undergoes meiosis: the cellular process that results in the number of chromosomes in gamete-producing cells being reduced to one half and that involves a reduction division in which one of each pair of homologous chromosomes passes to each daughter cell and a mitotic division." ;
  rdfs:subClassOf obo:BTO_0001434 .

obo:BTO_0004575 a rdfs:Class ;
  rdfs:label "nephroblastoma cell" ;
  rdfs:comment "A cancerous tumour of the kidney in children. Wilms is the most common tumour of the kidney and the most common intra-abdominal tumour in children. The exact cause is unknown, but probably develops in foetal tissue due to an underlying genetic factor." ;
  rdfs:subClassOf obo:BTO_0000680 .

obo:BTO_0000186 a rdfs:Class ;
  rdfs:label "lobular carcinoma cell" ;
  rdfs:comment "A cell of an infiltrating (invasive) breast cancer, relatively uncommon, accounting for only 5%-10% of breast tumours in most series. It is often an area of ill-defined thickening in the breast, in contrast to the dominant lump characteristic of ductal carcinoma. It is typically composed of small cells in a linear arrangement with a tendency to grow around ducts and lobules. There is likelihood of axillary nodal involvement with metastasis to meningeal and serosal surfaces." ;
  rdfs:subClassOf obo:BTO_0000150 .

obo:BTO_0000465 a rdfs:Class ;
  rdfs:label "flavedo" ;
  rdfs:comment "Oil exists in the yellow layer of the peel of the lemon which is known as the flavedo. It is found in balloon-like cells called oil glands." .

obo:BTO_0004625 a rdfs:Class ;
  rdfs:label "plasmacytoid dendritic cell" ;
  rdfs:comment "The plasmacytoid dendritic cell, pDC, is a type of white blood cell. The primary function of this cell type is to produce type I interferon when the body is infected by a virus. The pDC has special surface receptors that can detect many types of viruses." ;
  rdfs:subClassOf obo:BTO_0002042 .

obo:BTO_0000110 a rdfs:Class ;
  rdfs:label "amniotic cell line" .

obo:BTO_0000651 a rdfs:Class ;
  rdfs:label "small intestine" ;
  rdfs:comment "The part of the intestine that lies between the stomach and colon, consists of duodenum, jejunum, and ileum, secretes digestive enzymes, and is the chief site of the absorption of digested nutrients. The proximal portion of the intestine." .

obo:BTO_0002545 a rdfs:Class ;
  rdfs:label "MCF-12F cell" ;
  rdfs:comment "Nontumorigenic human mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0000896 a rdfs:Class ;
  rdfs:label "bag cell neuron" ;
  rdfs:comment "Cluster of electrically coupled neurons in the abdominal ganglion of Aplysia that are homogeneous, easily dissected out and release peptides that stimulate egg laying." .

obo:BTO_0002466 a rdfs:Class ;
  rdfs:label "nucleus ventralis posteromedialis thalamus" ;
  rdfs:comment "The more medial of the two posterior ventral nuclei of the thalamus; it is the secondary trigeminal tract and sends axons to the somesthetic area of the postcentral gyrus for the face." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0002700 a rdfs:Class ;
  rdfs:label "habenular trigone" ;
  rdfs:comment "A small triangular area on the posteromedial surface of the thalamus at the caudal end of the medullary stria, corresponding to the underlying habenula." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0006527 a rdfs:Class ;
  rdfs:label "BPLER cell" ;
  rdfs:comment "Highly malignant human triple-negative breast cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0000002 a rdfs:Class ;
  rdfs:label "culture condition:1,4-dichlorobenzene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006240 a rdfs:Class ;
  rdfs:label "PK-15CD163 cell" ;
  rdfs:comment "PK-15 cell line, transfected with porcine CD163 by PiggyBac transposon system." .

obo:BTO_0001247 a rdfs:Class ;
  rdfs:label "sieve tube" ;
  rdfs:comment "Found in phloem tissue, sieve tubes lack a nucleus, and are thought to be responsible for the translocation of material across the phloem tissue." .

obo:BTO_0001045 a rdfs:Class ;
  rdfs:label "T-lymphocyte cell line" ;
  rdfs:subClassOf obo:BTO_0001008 .

obo:BTO_0006235 a rdfs:Class ;
  rdfs:label "culture condition:rice bran-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004723 a rdfs:Class ;
  rdfs:label "lymphoid dendritic cell" ;
  rdfs:comment "Dendritic cells that develop from lymphoid precursors." ;
  rdfs:subClassOf obo:BTO_0002042 .

obo:BTO_0000180 a rdfs:Class ;
  rdfs:label "cervical carcinoma cell" ;
  rdfs:comment "A cancer cell of the uterine cervix (the neck of the uterus)." .

obo:BTO_0002368 a rdfs:Class ;
  rdfs:label "3Y1-B clone 1 cell" ;
  rdfs:comment "Rat Fischer cell line; established from a female rat embryo /whole fetus. Mother clone of 3Y1 series, fibroblast-like." ;
  rdfs:subClassOf obo:BTO_0001242 , obo:BTO_0001958 .

obo:BTO_0001805 a rdfs:Class ;
  rdfs:label "saccule" ;
  rdfs:comment "The smaller of two membranous sacs in the vestibule of the inner ear." .

obo:BTO_0002197 a rdfs:Class ;
  rdfs:label "M22 cell" ;
  rdfs:comment "Gamma-Glutamyl transpeptidase-positive, tumorigenic rat liver oval cell line, tumorigenic counterpart of OC/CDE22 cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0005213 a rdfs:Class ;
  rdfs:label "circular smooth muscle" ;
  rdfs:comment "The inner layer of the muscular coat." .

obo:BTO_0006530 a rdfs:Class ;
  rdfs:label "6DT1 cell" ;
  rdfs:comment """6DT1 mouse
mammary carcinoma cell line, derived from an MMTV-c-Myc
transgenic mouse model.""" ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0004181 a rdfs:Class ;
  rdfs:label "NCI/ADR-RES cell" ;
  rdfs:comment "Multidrug-resistant derivative of OVCAR-8. The recent study shows that NCI/ADR-RES cells are derived from OVCAR-8 ovarian adenocarcinoma cells. The multidrug-resistant MCF-7 breast adenocarcinoma cells originally named MCF-7/AdrR cells and later re-designated NCI/ADR-RES have served as an important and widely used research tool during the last two decades. The case of NCI/ADR-RES cells highlights a wide-spread problem of cell line cross-contamination and misidentification." .

obo:BTO_0001517 a rdfs:Class ;
  rdfs:label "FAO cell" ;
  rdfs:comment "Rat, liver, hepatoma, H-35 Reuber cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0004232 a rdfs:Class ;
  rdfs:label "tsA-201 cell" ;
  rdfs:comment "A transformed human kidney 293 cell line stably expressing an SV40 temperature-sensitive T antigen." .

obo:BTO_0006335 a rdfs:Class ;
  rdfs:label "TMG-L cell" ;
  rdfs:comment "Human uterine endometrial undifferentiated carcinoma cell line; established from the metastatic lymph node of 56 year old patient." ;
  rdfs:subClassOf obo:BTO_0006334 .

obo:BTO_0004546 a rdfs:Class ;
  rdfs:label "hypopharyngeal squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002024 , obo:BTO_0004439 .

obo:BTO_0001703 a rdfs:Class ;
  rdfs:label "right atrium" ;
  rdfs:comment "The right atrium receives deoxygenated blood from the body through the vena cava and pumps it into the right ventricle which then sends it to the lungs." .

obo:BTO_0004168 a rdfs:Class ;
  rdfs:label "MHCC-97 cell" ;
  rdfs:comment "Hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000289 a rdfs:Class ;
  rdfs:label "cytotoxic T-lymphocyte" ;
  rdfs:comment "Subset of T-lymphocytes (mostly CD8+) responsible for lysing target cells and for killing virus-infected cells." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0000555 a rdfs:Class ;
  rdfs:label "hair root" ;
  rdfs:comment "The enlarged basal part of a hair within the skin." .

obo:BTO_0000346 a rdfs:Class ;
  rdfs:label "digestive juice" .

obo:BTO_0001113 a rdfs:Class ;
  rdfs:label "prepuce" ;
  rdfs:comment "A fold of skin that covers the glans of the penis." .

obo:BTO_0000605 a rdfs:Class ;
  rdfs:label "honey" ;
  rdfs:comment "A sweet viscid material elaborated out of the nectar of flowers in the honey sac of various bees." .

obo:BTO_0000150 a rdfs:Class ;
  rdfs:label "breast cancer cell" ;
  rdfs:comment "Breast cancer is an uncontrolled growth of malignant breast tissue. Most breast cancers begin in the milk ducts: these are called intraductal cancers. A few, like lobular cancer, start in the milk sacs or lobes." ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0004386 a rdfs:Class ;
  rdfs:label "posterior cardinal vein" ;
  rdfs:comment "Any of the major drainage channels from the caudal part of an embryo." ;
  rdfs:subClassOf obo:BTO_0004385 .

obo:BTO_0004309 a rdfs:Class ;
  rdfs:label "Cl-66 cell" ;
  rdfs:comment "A murine breast adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0001483 a rdfs:Class ;
  rdfs:label "WiDr cell" ;
  rdfs:comment "Human, colon, adenocarcinoma cell line." .

obo:BTO_0000480 a rdfs:Class ;
  rdfs:label "forestomach" ;
  rdfs:comment "Any of the first three stomachs of a ruminant, i.e., the rumen, reticulum, or omasum." ;
  rdfs:subClassOf obo:BTO_0001307 .

obo:BTO_0001269 a rdfs:Class ;
  rdfs:label "spadix" ;
  rdfs:comment "A floral spike with a fleshy or succulent axis usually enclosed in a spathe." ;
  rdfs:subClassOf obo:BTO_0001278 .

obo:BTO_0004399 a rdfs:Class ;
  rdfs:label "BEN-MEN-1 cell" ;
  rdfs:comment "Human benign meningioma cell line; established in 2003 from the meningothelial meningioma grade I attached to the parietal falx of a 68-year-old woman after surgical tumor resection; cells were immortalized by retroviral transduction with human telomerase reverse transcriptase." ;
  rdfs:subClassOf obo:BTO_0004398 .

obo:BTO_0005638 a rdfs:Class ;
  rdfs:label "LF1 cell" ;
  rdfs:comment "Primary myofibroblast cell culture isolated from an individual patient with idiopathic pulmonary fibrosis." ;
  rdfs:subClassOf obo:BTO_0005637 .

obo:BTO_0001359 a rdfs:Class ;
  rdfs:label "medulloblastoma cell line" ;
  rdfs:subClassOf obo:BTO_0000690 , obo:BTO_0000711 .

obo:BTO_0002658 a rdfs:Class ;
  rdfs:label "collecting duct cell line" .

obo:BTO_0005202 a rdfs:Class ;
  rdfs:label "bulbil" ;
  rdfs:comment "A small bulb that develops from an aerial bud. Bulbils are easily detached and function as a means of vegetative propagation. They may form from lateral buds, as in the lesser celandine (Ranunculus ficaria), or develop in place of flowers, as in many species of Allium. Certain forms of apomixis give rise to bulbils, as seen in the lesser bulbous saxifrage (Saxifraga cernua). The term is also applied to various outgrowths formed by lower plants that become detached and develop into new plants. For example, the fern Asplenium bulbiferum produces bulbils on the upper surface of its fronds and Lycopodium selago has bulbils in the axils of the uppermost leaves." ;
  rdfs:subClassOf obo:BTO_0000159 .

obo:BTO_0002235 a rdfs:Class ;
  rdfs:label "Calu-6 cell" ;
  rdfs:comment "Human anaplastic carcinoma cell line, probably from lung. Established from a 62-years-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0001102 a rdfs:Class ;
  rdfs:label "blood vessel" ;
  rdfs:comment "Any of the vessels through which blood circulates in the body." .

obo:BTO_0002918 a rdfs:Class ;
  rdfs:label "HMV-II cell" ;
  rdfs:comment "Human vaginal malignant melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 , obo:BTO_0002936 .

obo:BTO_0002017 a rdfs:Class ;
  rdfs:label "plant reproductive system" ;
  rdfs:comment "Any of the systems, sexual or asexual, by which plants reproduce." .

obo:BTO_0004091 a rdfs:Class ;
  rdfs:label "embryonic neural stem cell" ;
  rdfs:comment "Neural stem cells are the multipotent stem cells that generate nerve cells. However, since the early 1990s, neural stem cells have been isolated from the adult brain as well as fetal brain tissues. Stem cells in the adult brain are found in the areas called the subventricular zone and the ventricle zone. Another location of brain stem cells occurs in the hippocampus, a special structure of the cerebral cortex related to memory function. Stem cells isolated from these areas are able to divide and to give rise to nerve cells and neuron-supporting cell types in culture." ;
  rdfs:subClassOf obo:BTO_0001086 .

obo:BTO_0003842 a rdfs:Class ;
  rdfs:label "GM02037 cell" ;
  rdfs:comment "Human skin normal fibroblast cell line, established from a 13 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0002089 a rdfs:Class ;
  rdfs:label "CAL-72 cell" ;
  rdfs:comment "Human osteosarcoma cell line, established from a chemotherapy-resistant tumor sample obtained from the left knee of a 10-year-old boy with anaplastic osteoblastic sarcoma (Rosen grade IIB) in 1989." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002437 a rdfs:Class ;
  rdfs:label "enteric plexus" ;
  rdfs:comment "A plexus of autonomic nerve fibers within the wall of the digestive tube, and made up of the submucosal, myenteric, and subserosal plexuses; it contains visceral afferent fibers, sympathetic postganglionic fibers, parasympathetic preganglionic and postganglionic fibers, and parasympathetic postganglionic cell bodies." .

obo:BTO_0000644 a rdfs:Class ;
  rdfs:label "intestinal juice" ;
  rdfs:comment "A fluid that is secreted in small quantity in the small intestine, is highly variable in constitution, and contains especially various enzymes (as erepsin, lipase, lactase, enterokinase, and amylase) and mucus." ;
  rdfs:subClassOf obo:BTO_0000346 .

obo:BTO_0006134 a rdfs:Class ;
  rdfs:label "culture condition:GR1+ cell" ;
  rdfs:comment "GR1+ is a granulocytic marker." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0004467 a rdfs:Class ;
  rdfs:label "LbetaT2 cell" ;
  rdfs:comment "Murine pituitary gonadotrope cell line." ;
  rdfs:subClassOf obo:BTO_0000427 .

obo:BTO_0000082 a rdfs:Class ;
  rdfs:label "male reproductive system" ;
  rdfs:comment "The internal and external reproductive organs in the male." ;
  rdfs:subClassOf obo:BTO_0000081 .

obo:BTO_0005187 a rdfs:Class ;
  rdfs:label "TTE-1 cell" ;
  rdfs:comment "A Leydig cell line, established from transgenic mice harboring a temperature-sensitive simian virus 40 (tsSV40) large T-antigen gene." ;
  rdfs:subClassOf obo:BTO_0004522 .

obo:BTO_0001462 a rdfs:Class ;
  rdfs:label "bladder wall" .

obo:BTO_0005249 a rdfs:Class ;
  rdfs:label "M-07 cell" ;
  rdfs:comment "Human megakaryoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0004961 .

obo:BTO_0002328 a rdfs:Class ;
  rdfs:label "ventral nerve cord" ;
  rdfs:comment "The pair of closely united ventral longitudinal nerves with their segmental ganglia that is characteristic of many elongate invertebrates (as earthworms)." ;
  rdfs:subClassOf obo:BTO_0001656 .

obo:BTO_0006454 a rdfs:Class ;
  rdfs:label "HEY-A8 cell" ;
  rdfs:comment "Human highly invasive ovarian cancer cell line." .

obo:BTO_0002340 a rdfs:Class ;
  rdfs:label "plant collar" ;
  rdfs:comment "The neck or line of junction between the root of a plant and its stem." .

obo:BTO_0006246 a rdfs:Class ;
  rdfs:label "brain capillary endothelial cell" ;
  rdfs:subClassOf obo:BTO_0005201 .

obo:BTO_0004103 a rdfs:Class ;
  rdfs:label "leaf primordium" ;
  rdfs:comment "The first stage of leaf development; a small lateral protuburance formed by an apical shoot meristem that will expand to form a leaf." ;
  rdfs:subClassOf obo:BTO_0000713 , obo:BTO_0005525 .

obo:BTO_0001668 a rdfs:Class ;
  rdfs:label "mast cell line" .

obo:BTO_0006263 a rdfs:Class ;
  rdfs:label "IT-79MTNC3 cell" ;
  rdfs:comment "Mouse thymic tumor cell line." ;
  rdfs:subClassOf obo:BTO_0006262 .

obo:BTO_0003921 a rdfs:Class ;
  rdfs:label "KHOS cell" ;
  rdfs:comment "Human osteosarcoma cell line." .

obo:BTO_0001653 a rdfs:Class ;
  rdfs:label "lung epithelium" ;
  rdfs:subClassOf obo:BTO_0000419 .

obo:BTO_0000417 a rdfs:Class ;
  rdfs:label "bile duct epithelium" ;
  rdfs:comment "The irregularly shaped proliferating bile ducts are lined by normal cuboidal epithelium." ;
  rdfs:subClassOf obo:BTO_0001513 .

obo:BTO_0001192 a rdfs:Class ;
  rdfs:label "rootlet" ;
  rdfs:comment "A small root." ;
  rdfs:subClassOf obo:BTO_0001188 .

obo:BTO_0006408 a rdfs:Class ;
  rdfs:label "K7 cell" ;
  rdfs:comment "Mouse osteosarcoma K7 cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002879 a rdfs:Class ;
  rdfs:label "chorionic plate" ;
  rdfs:comment "That portion of the chorionic wall in the region of its uterine attachment, which gives rise to chorionic villi; it consists of the mesoderm that lines the chorionic vesicle and, on the maternal side, of the trophoblast that lines the intervillous spaces; in the last half of gestation, the mesodermal connective tissue is largely replaced by fibrinoid material, and the amnionic membrane is adherent to the fetal side of the plate." .

obo:BTO_0003502 a rdfs:Class ;
  rdfs:label "OVSAHO cell" ;
  rdfs:comment "Human ovarian carcinoma cell line from serous papillary adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0000739 a rdfs:Class ;
  rdfs:label "lymphoblastic leukemia cell line" ;
  rdfs:comment "Lymphocytic leukemia cell line characterized by an abnormal increase in the number of lymphoblasts." ;
  rdfs:subClassOf obo:BTO_0000741 , obo:BTO_0000773 .

obo:BTO_0001075 a rdfs:Class ;
  rdfs:label "motor trigeminal nucleus" ;
  rdfs:subClassOf obo:BTO_0001074 .

obo:BTO_0002314 a rdfs:Class ;
  rdfs:label "satellite cell" ;
  rdfs:comment "1. Glial cells that cluster about a neuron. 2. Free nuclei that accumulate around cells in certain diseases. 3. Elongated cells that are closely associated with a muscle fiber; they either are flattened against the fiber or occupy shallow depressions in its surface." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0002662 a rdfs:Class ;
  rdfs:label "skeletal muscle cell line" .

obo:BTO_0003448 a rdfs:Class ;
  rdfs:label "septum pellucidum" ;
  rdfs:comment "The septum pellucidum is made up of two thin sheets of mostly glial-like elements that abut each other in the midline and have a potential space between them. Those sheets also separate the left and right lateral ventricles from each other. At the base of the sheets rostrally, however, are the septal nuclei, which are important components of the limbic system." .

obo:BTO_0005360 a rdfs:Class ;
  rdfs:label "ALL-SIL cell" ;
  rdfs:comment "Human T cell leukemia established from the peripheral blood of a 17-year-old man with T cell acute lymphoblastic leukemia, T-ALL." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0005294 a rdfs:Class ;
  rdfs:label "NCI-H647 cell" ;
  rdfs:comment "Human non-small cell lung adenosquamous carcinoma cell line, established from a 56 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002553 .

obo:BTO_0001620 a rdfs:Class ;
  rdfs:label "SK-N-SH cell" ;
  rdfs:comment "Human, Caucasian, bone marrow, neuroblastoma cell line. Species: human, Caucasian female 4 years old; Tissue: bone marrow; Tumor: neuroblastoma." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000042 a rdfs:Class ;
  rdfs:label "animal" ;
  rdfs:comment "Any of a kingdom (Animalia) of living things including many-celled organisms and often many of the single-celled ones (as protozoans) that typically differ from plants in having cells without cellulose walls, in lacking chlorophyll and the capacity for photosynthesis, in requiring more complex food materials (as proteins), in being organized to a greater degree of complexity, and in having the capacity for spontaneous movement and rapid motor responses to stimulation." ;
  rdfs:subClassOf obo:BTO_0000000 .

obo:BTO_0001430 a rdfs:Class ;
  rdfs:label "mammary epithelium" ;
  rdfs:comment "The human breast epithelium is a branching ductal system composed of an inner layer of polarized luminal epithelial cells and an outer layer of myoepithelial cells that terminate in distally located terminal duct lobular units (TDLUs)." ;
  rdfs:subClassOf obo:BTO_0001428 .

obo:BTO_0001574 a rdfs:Class ;
  rdfs:label "chondrosarcoma cell line" ;
  rdfs:subClassOf obo:BTO_0000385 .

obo:BTO_0001478 a rdfs:Class ;
  rdfs:label "zygotene cell" ;
  rdfs:comment "A cell in the stage of meiotic prophase which immediately follows the leptotene and during which synapsis of homologous chromosomes occurs." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0001219 a rdfs:Class ;
  rdfs:label "MEB-4 cell" ;
  rdfs:comment "Mouse melanoma cell line." .

obo:BTO_0002505 a rdfs:Class ;
  rdfs:label "anaplastic large cell lymphoma cell" ;
  rdfs:comment "An aggressive (rapidly progressing) type of non-Hodgkins lymphoma that is usually of the T-cell type. The cancer cells express a marker called CD30 or Ki-1 on the surface, and may appear in the lymph nodes, skin, bones, soft tissues, lungs, or liver." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0006020 a rdfs:Class ;
  rdfs:label "female accessory gland" ;
  rdfs:comment "The reproductive system of female insects are made up of a pair of ovaries, accessory glands, one or more spermathecae, and ducts connecting these parts. The accessory glands produce the substances to help package and lay the eggs." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0006262 a rdfs:Class ;
  rdfs:label "thymic cancer cell line" .

obo:BTO_0001225 a rdfs:Class ;
  rdfs:label "MKN-45 cell" ;
  rdfs:comment "Human gastric adenocarcinoma, established from the poorly differentiated adenocarcinoma of the stomach (medullary type) of a 62-year-old woman." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0001146 a rdfs:Class ;
  rdfs:label "pyloric region" ;
  rdfs:comment "Pylorus: the opening from the vertebrate stomach into the intestine." .

obo:BTO_0004580 a rdfs:Class ;
  rdfs:label "862L cell" ;
  rdfs:comment "Mouse pheochromocytoma cell line." ;
  rdfs:subClassOf obo:BTO_0000201 .

obo:BTO_0000017 a rdfs:Class ;
  rdfs:label "A-431 cell" ;
  rdfs:comment "Human epidermoid carcinoma established from the solid tumor of an 85-year-old woman; cells were reported to have large numbers of EGF binding sites; cell line was used as indicator cell line for anti-TGF binding." ;
  rdfs:subClassOf obo:BTO_0000297 .

obo:BTO_0003238 a rdfs:Class ;
  rdfs:label "NCI-H23 cell" ;
  rdfs:comment "Human lung adenocarcinoma, non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002553 .

obo:BTO_0005766 a rdfs:Class ;
  rdfs:label "A2780/CP cell" ;
  rdfs:comment "Cisplatin-resistant variant of the human ovarian carcinoma cell line A2780." .

obo:BTO_0004726 a rdfs:Class ;
  rdfs:label "embryonic brain" ;
  rdfs:subClassOf obo:BTO_0000142 .

obo:BTO_0006217 a rdfs:Class ;
  rdfs:label "chondrogenic MCT cell" ;
  rdfs:comment "Mouse chondrocytes immortalized with a temperature-sensitive simian virus 40 large T antigen." ;
  rdfs:subClassOf obo:BTO_0003858 .

obo:BTO_0006434 a rdfs:Class ;
  rdfs:label "phylloid" ;
  rdfs:comment "A plant part functioning as or of similar origin to a leaf." .

obo:BTO_0002484 a rdfs:Class ;
  rdfs:label "columnar cell" ;
  rdfs:comment "An elongated epithelial cell." ;
  rdfs:subClassOf obo:BTO_0000414 .

obo:BTO_0004868 a rdfs:Class ;
  rdfs:label "anaplastic large cell lymphoma cell line" ;
  rdfs:comment "An aggressive (rapidly progressing) type of non-Hodgkins lymphoma that is usually of the T-cell type. The cancer cells express a marker called CD30 or Ki-1 on the surface, and may appear in the lymph nodes, skin, bones, soft tissues, lungs, or liver." ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0001596 a rdfs:Class ;
  rdfs:label "MG-63 cell" ;
  rdfs:comment "Homo sapiens (human) bone, osteosarcoma cell line; established from a 14 year old caucasian male." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0003073 a rdfs:Class ;
  rdfs:label "medullary thyroid carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001610 .

obo:BTO_0003284 a rdfs:Class ;
  rdfs:label "TMC-1 cell" ;
  rdfs:comment "The EBV negative TMC1 cell line was derived from metastatic tumor cells in the lymph node of a patient with poorly differentiated adenocarcinoma of the stomach." .

obo:BTO_0005831 a rdfs:Class ;
  rdfs:label "globoid cell leukodystrophy disease specific cell type" ;
  rdfs:comment "A cell of the lysosomal storage disease beginning in infancy, due to deficiency of beta-galactosidase. Pathologically, there is rapidly progressive cerebral demyelination and large globoid bodies in the white substance." ;
  rdfs:subClassOf obo:BTO_0005830 .

obo:BTO_0004662 a rdfs:Class ;
  rdfs:label "iliac artery endothelial cell" .

obo:BTO_0006534 a rdfs:Class ;
  rdfs:label "cerebral nucleus" ;
  rdfs:comment "The term cerebral nuclei refers to one of three components of the cerebrum. It is a composite structure of the endbrain defined on the basis of origin from the ventricular ridge of the embryonic Encephalon. It consists of the extended striatum and the extended pallidum." .

obo:BTO_0004131 a rdfs:Class ;
  rdfs:label "IOSE-397 cell" ;
  rdfs:comment "Immortalized not tumorigenic human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004130 .

obo:BTO_0001509 a rdfs:Class ;
  rdfs:label "umbilical vein" ;
  rdfs:comment "A vein that passes through the umbilical cord to the fetus and returns the oxygenated and nutrient blood from the placenta to the fetus." .

obo:BTO_0005148 a rdfs:Class ;
  rdfs:label "HTh-83 cell" ;
  rdfs:comment "Human anaplastic thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0001567 a rdfs:Class ;
  rdfs:label "MDA-MB-435 cell" ;
  rdfs:comment "Human breast cancer cell line that expresses high levels of seprase as do the carcinoma cells in tumors of human breast cancer patients." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002604 a rdfs:Class ;
  rdfs:label "TC-71 cell" ;
  rdfs:comment "Human Ewing's sarcoma cell line; established from the tumor of a 22-year-old man with metastatic Ewing's sarcoma that arose in the humerus; cell line was derived in 1981 from a biopsy of recurrent tumor at the primary site." ;
  rdfs:subClassOf obo:BTO_0004201 .

obo:BTO_0004182 a rdfs:Class ;
  rdfs:label "NCI-H322M cell" ;
  rdfs:comment "Human non-small cell lung cancer cell line." .

obo:BTO_0003965 a rdfs:Class ;
  rdfs:label "anterior olfactory lobule" .

obo:BTO_0000491 a rdfs:Class ;
  rdfs:label "excretion" ;
  rdfs:comment "The matter, such as urine or sweat, that is excreted from the blood, tissues, or organs." .

obo:BTO_0001686 a rdfs:Class ;
  rdfs:label "joint" ;
  rdfs:comment "The point of contact between elements of an animal skeleton with the parts that surround and support it." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0006034 a rdfs:Class ;
  rdfs:label "KRIB cell" ;
  rdfs:comment "Human osteosarcoma cell line, Ki-ras transformed TE85 line." .

obo:BTO_0002774 a rdfs:Class ;
  rdfs:label "amyloid plaque" ;
  rdfs:comment "A plaque consisting of tangles of amyloid protein in nervous tissue (a pathological mark of Alzheimer's disease)." ;
  rdfs:subClassOf obo:BTO_0000590 .

obo:BTO_0004926 a rdfs:Class ;
  rdfs:label "THP-6 cell" ;
  rdfs:comment "Human acute lymphoblastic leukemia cell line from two children with null cell type ALL." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0002975 a rdfs:Class ;
  rdfs:label "A-2058 cell" ;
  rdfs:comment "Human skin melanoma cell line, established from a 43 years adult caucasian male." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005410 a rdfs:Class ;
  rdfs:label "culture condition:monomethylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003080 a rdfs:Class ;
  rdfs:label "pleural fluid" ;
  rdfs:comment "Your body produces pleural fluid in small amounts to lubricate the surfaces of the pleura, the thin membrane that lines the chest cavity and surrounds the lungs." .

obo:BTO_0005048 a rdfs:Class ;
  rdfs:label "MACL-1 cell" ;
  rdfs:comment "Cell line established from human primary breast cancer based on differential centrifugation, followed by growth in culture for over 70 passages." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0001866 a rdfs:Class ;
  rdfs:label "bronchiolar epithelium" ;
  rdfs:subClassOf obo:BTO_0000419 .

obo:BTO_0002444 a rdfs:Class ;
  rdfs:label "basal forebrain" ;
  rdfs:comment "The basal forebrain is a term for a group of structures that lie near the bottom of the front of the brain, including the nucleus basalis, diagonal band, medial septum and substantia innominata. These structures are important in the production of a brain chemical called acetylcholine, which is then distributed widely throughout the brain." .

obo:BTO_0000497 a rdfs:Class ;
  rdfs:label "ganglion" ;
  rdfs:comment "A group of nerve cell bodies located outside the central nervous system. The term is occasionally applied to certain nuclear groups within the brain or spinal cord, such as the basal ganglia." .

obo:BTO_0002799 a rdfs:Class ;
  rdfs:label "culture condition:raffinose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003910 a rdfs:Class ;
  rdfs:label "stellate reticulum" ;
  rdfs:comment "The stellate reticulum is a group of cells located in the center of the enamel organ of a developing tooth. These cells are star shaped and synthesize glycosaminoglycans." .

obo:BTO_0002084 a rdfs:Class ;
  rdfs:label "anterior chamber of the eye" ;
  rdfs:comment "That portion of the aqueous-containing space between the cornea and the lens which is bounded in front by the cornea and part of the sclera, and behind by the iris, part of the ciliary body, and that part of the lens which presents through the pupil." ;
  rdfs:subClassOf obo:BTO_0002085 .

obo:BTO_0006156 a rdfs:Class ;
  rdfs:label "proneural glioma stem cell" ;
  rdfs:subClassOf obo:BTO_0006155 .

obo:BTO_0002063 a rdfs:Class ;
  rdfs:label "Colo-720L cell" ;
  rdfs:comment "Human B-lymphoblastoid cell line (from patient with adenocarcinoma); established from the peripheral blood of a 73-year-old woman with metastatic adenocarcinoma in 1988." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0004814 a rdfs:Class ;
  rdfs:label "DT-40 cell" ;
  rdfs:comment "Chicken B cell line; established in 1985 from a bursal lymphoma, which was induced by infection of a 1 day old chicken with Rous-associated virus type 1 (RAV-1), an avian leukosis retrovirus carrying no cell-derived oncogene." ;
  rdfs:subClassOf obo:BTO_0001518 , obo:BTO_0001522 .

obo:BTO_0002419 a rdfs:Class ;
  rdfs:label "SK-BR-3 cell" ;
  rdfs:comment "Human breast adenocarcinoma cell line; established from a caucasian female 43 years old. Morphology: epithelial-like." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0006270 a rdfs:Class ;
  rdfs:label "uterine carcinosarcoma cell line" ;
  rdfs:comment "A malignant tumor cell line combining elements of carcinoma and sarcoma in the uterus." ;
  rdfs:subClassOf obo:BTO_0003596 .

obo:BTO_0000007 a rdfs:Class ;
  rdfs:label "HEK-293 cell" ;
  rdfs:comment "Established from a human primary embryonal kidney transformed by adenovirus type 5." ;
  rdfs:subClassOf obo:BTO_0000067 , obo:BTO_0002733 .

obo:BTO_0006374 a rdfs:Class ;
  rdfs:label "U87DND cell" ;
  rdfs:comment "A U87MG derived clone, defective in ceramide production de novo." .

obo:BTO_0003528 a rdfs:Class ;
  rdfs:label "GRX cell" ;
  rdfs:comment "Immortalized murine hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0001304 a rdfs:Class ;
  rdfs:label "stipe" ;
  rdfs:comment "A usually short plant stalk: as a: the stem supporting the cap of a fungus b: a part that is similar to a stipe and connects the holdfast and blade of a frondose alga c: the petiole of a fern frond d: a prolongation of the receptacle beneath the ovary of a seed plant." ;
  rdfs:subClassOf obo:BTO_0000468 .

obo:BTO_0005729 a rdfs:Class ;
  rdfs:label "chemoreceptor cell" ;
  rdfs:comment "A sensory nerve cell or sense organ, as of smell or taste, that responds to chemical stimuli." ;
  rdfs:subClassOf obo:BTO_0001037 .

obo:BTO_0000460 a rdfs:Class ;
  rdfs:label "fibrosarcoma cell line" ;
  rdfs:subClassOf obo:BTO_0000400 , obo:BTO_0000453 .

obo:BTO_0002892 a rdfs:Class ;
  rdfs:label "GEO cell" ;
  rdfs:comment "Human colon cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0005570 a rdfs:Class ;
  rdfs:label "HFDPC cell" ;
  rdfs:comment "Primary Human Follicle Dermal Papilla Cells are isolated from human dermis originating from the lateral scalp. Information on donor hair and skin color is available for each lot." ;
  rdfs:subClassOf obo:BTO_0005569 .

obo:BTO_0005871 a rdfs:Class ;
  rdfs:label "naive T-lymphocyte" ;
  rdfs:comment "A T-cell that has differentiated in bone marrow, and successfully undergone the positive and negative processes of central selection in the thymus. Among these are the naive forms of helper T cells (CD4+) and cytotoxic T cells (CD8+)." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0005817 a rdfs:Class ;
  rdfs:label "adrenocortical cell" ;
  rdfs:comment "Cell, pertaining to or arising from the cortex of the adrenal gland." .

obo:BTO_0002755 a rdfs:Class ;
  rdfs:label "PC6-16 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0000500 a rdfs:Class ;
  rdfs:label "gastric epithelium" ;
  rdfs:comment "Epithelium of the stomach." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0006203 a rdfs:Class ;
  rdfs:label "AML-193 cell" ;
  rdfs:comment "Human acute monocytic leukemia cell line, established from a 13 years old girl." ;
  rdfs:subClassOf obo:BTO_0002332 .

obo:BTO_0005378 a rdfs:Class ;
  rdfs:label "Rh-1 cell" ;
  rdfs:comment "Human rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0006545 a rdfs:Class ;
  rdfs:label "MGG-8 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0000985 a rdfs:Class ;
  rdfs:label "P-815 cell" ;
  rdfs:comment "Mouse mastocytoma, established from the mastocytoma tumor of a DBA/2 mouse treated with methylcolanthrene; used as target cells for cytotoxic T cell assays; as reported cells exhibit no effector activity in an antibody-dependent cell mediated cytotoxic system." ;
  rdfs:subClassOf obo:BTO_0000403 .

obo:BTO_0002332 a rdfs:Class ;
  rdfs:label "monocytic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0004518 a rdfs:Class ;
  rdfs:label "uterine gland" ;
  rdfs:comment "Simple or branched, tubular gland extending into the lamina propria-submucosa, secreting mucus, lipids, glycogen, protein." ;
  rdfs:subClassOf obo:BTO_0001979 .

obo:BTO_0003157 a rdfs:Class ;
  rdfs:label "pericardial mesothelium" ;
  rdfs:comment "Mesothelium: the layer of flat cells, derived from the mesoderm, that line the coelom or body cavity of the embryo. In the adult, it forms the simple squamous epithelium that covers all true serous membranes (peritoneum, pericardium, pleura)." .

obo:BTO_0004737 a rdfs:Class ;
  rdfs:label "AU-565 cell" ;
  rdfs:comment "The AU565 cell line was derived from a pleural effusion of a patient with breast adenocarcinoma. This cell line was established from the same patient as SK-BR-3. The patient, a White, Caucasian female, age 43, blood type A+, had been treated with radiation, steroids, cytoxan and 5-fluorouracil." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0005453 a rdfs:Class ;
  rdfs:label "culture condition:CD4+ cell" ;
  rdfs:comment "CD4, cluster of differentiation 4, is a glycoprotein found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells. In humans CD4+ T helper cells are white blood cells that are an essential part of the human immune system." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0004650 a rdfs:Class ;
  rdfs:label "dorsal fin" ;
  rdfs:comment "The unpaired fin located on the back of both bony fish and sharks. It may be single and soft-rayed, as in trout, or double with the anterior dorsal fin supported by fin spines, as in perch. In some species, e.g. eels, the dorsal fin is confluent with the tail fin." ;
  rdfs:subClassOf obo:BTO_0004649 .

obo:BTO_0002279 a rdfs:Class ;
  rdfs:label "J-774 cell" ;
  rdfs:comment "Mouse macrophage cell line." ;
  rdfs:subClassOf obo:BTO_0002278 .

obo:BTO_0001124 a rdfs:Class ;
  rdfs:label "promastigote" ;
  rdfs:comment "Any of the bodies representing the morphological leptomonad stage in the life cycle of certain trypanosomatid protozoa resembling the typical adult form of members of the genus Leptomonas, in which the elongate or pear-shaped cell has a central nucleus and at the anterior end a kinetoplast and a basal body from which arises a single long, slender flagellum." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0003108 a rdfs:Class ;
  rdfs:label "ChaGo-K-1 cell" ;
  rdfs:comment "Human lung bronchus carcinoma cell line, derived from a bronchogenic carcinoma of a 45-year-old male." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0001692 a rdfs:Class ;
  rdfs:label "cochlear duct" ;
  rdfs:comment "A spirally arranged membranous tube in the bony canal of the cochlea along its outer wall, lying between the scala tympani below and the scala vestibuli above." .

obo:BTO_0003000 a rdfs:Class ;
  rdfs:label "EB-1 cell" ;
  rdfs:comment "Human Burkitt lymphoma cell line; established from the maxilla tumor lymph node of a 9-year-old black girl with Burkitt lymphoma in 1964; cells were described to be EBV-positive." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0000528 a rdfs:Class ;
  rdfs:label "JTC-27 cell" ;
  rdfs:comment "Rat hepatoma, established from the transplantable rat ascites hepatoma AH-601 induced by feeding with aminoazotoluene; the hepatoma was passaged by intraperitoneal transplantation though JAR-2 rats." ;
  rdfs:subClassOf obo:BTO_0000582 .

obo:BTO_0004610 a rdfs:Class ;
  rdfs:label "Henles loop cell line" .

obo:BTO_0001765 a rdfs:Class ;
  rdfs:label "neural plate" ;
  rdfs:comment "The thickened dorsal plate of ectoderm that differentiates into the neural tube and neural crest; Ectoderm on the dorsal surface of the early vertebrate embryo that gives rise to the cells (neurons and glia) of the nervous system." .

obo:BTO_0004958 a rdfs:Class ;
  rdfs:label "F9-12 cell" ;
  rdfs:comment "The yeast genomic DNA from the strain F9 was transferred to the established mouse fibroblast cell line L A-9 by fusion with yeast spheroplasts followed by selection with G418 to select for cells which had taken up yeast DNA. Seventeen independent cell lines, called F9-1 to F9-17, were grown up from colonies on separate plates." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0002830 a rdfs:Class ;
  rdfs:label "DB-1 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002186 a rdfs:Class ;
  rdfs:label "culture condition:2-chloroacrylate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005086 a rdfs:Class ;
  rdfs:label "arteria profunda penis" ;
  rdfs:comment "The artery that serves blood to the penis. It subdivides into three arteries, the bulbourethral artery, the dorsal artery of the penis and the cavernosal artery." .

obo:BTO_0003751 a rdfs:Class ;
  rdfs:label "submucosal gland" ;
  rdfs:comment "Gland of the lamina epithelialis mucosae which perforate the lamina muscularis, with their adenomeres located in the submucosal connective tissue." ;
  rdfs:subClassOf obo:BTO_0001979 .

obo:BTO_0003909 a rdfs:Class ;
  rdfs:label "bile duct cell line" .

obo:BTO_0000723 a rdfs:Class ;
  rdfs:label "lens" ;
  rdfs:comment "A highly transparent biconvex lens-shaped or nearly spherical body in the eye that focuses light rays (as upon the retina)." .

obo:BTO_0000487 a rdfs:Class ;
  rdfs:label "fruit body" ;
  rdfs:comment "Any specialized structure which bears or contains sexually or asexually derived spores." .

obo:BTO_0000717 a rdfs:Class ;
  rdfs:label "pericardium" ;
  rdfs:comment "1: The conical sac of serous membrane that encloses the heart and the roots of the great blood vessels of vertebrates. 2: A cavity or space that contains the heart of an invertebrate and in arthropods is a part of the hemocoel." .

obo:BTO_0002586 a rdfs:Class ;
  rdfs:label "G-401 cell" ;
  rdfs:comment "Human caucasian kidney cell line. G-401 was deposited as a cell line derived from a Wilms tumor. Due to a change in the classification of such tumors, the cell line was examined by Garvin et al and found to be more appropriately classified as derived from a rhabdoid tumor of the kidney." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0002307 a rdfs:Class ;
  rdfs:label "yeast form" ;
  rdfs:comment "1. Any of various unicellular fungi of the genus Saccharomyces, especially S. cerevisiae, reproducing by budding and from ascospores and capable of fermenting carbohydrates. 2. Any of various similar fungi." ;
  rdfs:subClassOf obo:BTO_0002261 .

obo:BTO_0001941 a rdfs:Class ;
  rdfs:label "Morris hepatoma 7316A cell" ;
  rdfs:comment "Rat Morris hepatoma 7316A cell." ;
  rdfs:subClassOf obo:BTO_0001080 .

obo:BTO_0005008 a rdfs:Class ;
  rdfs:label "psammoma body" ;
  rdfs:comment "A psammoma body is a round collection of calcium, seen microscopically. The term is derived from the Greek word psammos meaning sand. Psammoma bodies are commonly seen in certain tumors." .

obo:BTO_0000443 a rdfs:Class ;
  rdfs:label "adipocyte" ;
  rdfs:comment "One of the fat-laden cells making up adipose tissue." .

obo:BTO_0005502 a rdfs:Class ;
  rdfs:label "Panc1-bC2GnT-M cell" ;
  rdfs:comment "Panc-1 cell line transfected with the Core 2 N-acetylglucosaminyltransferase mucus-type." .

obo:BTO_0006465 a rdfs:Class ;
  rdfs:label "intestinal stem cell" ;
  rdfs:comment "Intestinal stem cells are multipotent adult stem cells, which in mammals reside in the base of the crypts of the adult intestine. Intestinal stem cells continuously self-renew by dividing and differentiate into the specialised cells of the intestinal epithelium, which renews throughout life." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0005330 a rdfs:Class ;
  rdfs:label "culture condition:salicylic acid-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006297 a rdfs:Class ;
  rdfs:label "CH12F3 cell" ;
  rdfs:comment "Mouse B-lymphocyte cell line." .

obo:BTO_0006346 a rdfs:Class ;
  rdfs:label "vitellocyte" ;
  rdfs:comment "A cell of the vitellarium." .

obo:BTO_0002673 a rdfs:Class ;
  rdfs:label "dorsal nucleus of medial geniculate body" ;
  rdfs:comment "The larger, dorsal part of the medial geniculate nucleus, receiving ascending auditory fibers from the inferior colliculus as well as afferent projections from some nonauditory areas of the brain stem, and projecting to the auditory cortex." .

obo:BTO_0003101 a rdfs:Class ;
  rdfs:label "female pudendum" ;
  rdfs:comment "That portion of the female genitalia comprising the mons pubis, labia majora, labia minora, vestibule of the vagina, bulb of the vestibule, greater and lesser vestibular glands, and vaginal orifice. Commonly used to denote the entire external female genitalia." ;
  rdfs:subClassOf obo:BTO_0003100 .

obo:BTO_0002343 a rdfs:Class ;
  rdfs:label "tarsal bone" ;
  rdfs:comment "Any of the seven bones of the tarsus. The seven bones constituting the articulation between the foot and the leg-the talus, calcaneus, and navicular, in the proximal row; and the cuboid and the lateral, intermediate, and medial cuneiform bones, in the distal row." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0004598 a rdfs:Class ;
  rdfs:label "TE-15 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0006318 a rdfs:Class ;
  rdfs:label "culture condition:beech wood-grown cell" ;
  rdfs:comment "Is a substrate for basidiomycetes." ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004193 a rdfs:Class ;
  rdfs:label "pharyngeal pad" ;
  rdfs:comment "The covering of the pharyngeal process against which the pharyngeal teeth grind food." .

obo:BTO_0005621 a rdfs:Class ;
  rdfs:label "Hep-G2/2.15 cell" ;
  rdfs:comment "HepG2.2.15 cells are derived from the human hepatoblastoma cell line HepG2 and are characterized by having stable HBV expression and replication in the culture system." .

obo:BTO_0006329 a rdfs:Class ;
  rdfs:label "red nucleus" ;
  rdfs:comment "The red nucleus or nucleus ruber is a structure in the rostral midbrain involved in motor coordination." .

obo:BTO_0001784 a rdfs:Class ;
  rdfs:label "Peyer's gland" ;
  rdfs:comment "Any of numerous large oval patches of closely aggregated nodules of lymphoid tissue in the walls of the small intestine especially in the ileum that partially or entirely disappear in advanced life and in typhoid fever become the seat of ulcers which may perforate the intestines." ;
  rdfs:subClassOf obo:BTO_0000784 .

obo:BTO_0003539 a rdfs:Class ;
  rdfs:label "PNT2-C2 cell" ;
  rdfs:comment "Normal human prostate epithelial cell line." .

obo:BTO_0000227 a rdfs:Class ;
  rdfs:label "central nervous system" ;
  rdfs:comment "The central nervous system is that part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS) is one of the two major divisions of the nervous system. The other is the peripheral nervous system (PNS) which is outside the brain and spinal cord." .

obo:BTO_0002499 a rdfs:Class ;
  rdfs:label "companion cell" ;
  rdfs:comment "A specialized parenchyma cell, located in the phloem of flowering plants and closely associated in development and function with a sieve-tube element." .

obo:BTO_0002516 a rdfs:Class ;
  rdfs:label "odontoclast" ;
  rdfs:comment "A large multinuclear cell associated with the absorption and removal of bone. It is cytomorphologically the same as an osteoclast and is involved in cementum resorption." .

obo:BTO_0003441 a rdfs:Class ;
  rdfs:label "L3.6pl cell" ;
  rdfs:comment "Human pancreatic cancer cell line." .

obo:BTO_0003589 a rdfs:Class ;
  rdfs:label "GM08505 cell" ;
  rdfs:comment "SV40-transformed fibroblast cell line, established at the Coriell Institute for Medical Research as a permanently proliferating cell line. This highly aneuploid line, which maintains the high-SCE phenotype of Bloom Syndrome (BS), was derived from a diploid fibroblast cell line developed from a skin biopsy sample obtained from an Ashkenazi Jewish woman with BS." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0005464 a rdfs:Class ;
  rdfs:label "IME cell" ;
  rdfs:comment "Mouse renal inner medullary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0001526 .

obo:BTO_0000728 a rdfs:Class ;
  rdfs:label "Brown Pearce carcinoma cell" ;
  rdfs:comment "Brown-Pearce epithelioma in rabbit eyes (Brown and Pearce developed this eye cancer of a rabbit)." ;
  rdfs:subClassOf obo:BTO_0000176 , obo:BTO_0000579 .

obo:BTO_0001220 a rdfs:Class ;
  rdfs:label "Schwann cell" ;
  rdfs:comment "Named after the German physiologist Theodor Schwann. Schwann cells are a variety of glial cell that keep peripheral nerve fibres (both myelinated and unmyelinated) alive." .

obo:BTO_0000047 a rdfs:Class ;
  rdfs:label "adrenal gland" ;
  rdfs:comment "Either of a pair of complex endocrine organs near the anterior medial border of the kidney consisting of a mesodermal cortex that produces glucocorticoid, mineralocorticoid, and androgenic hormones and an ectodermal medulla that produces epinephrine and norepinephrine." ;
  rdfs:subClassOf obo:BTO_0001488 , obo:BTO_0001491 .

obo:BTO_0000797 a rdfs:Class ;
  rdfs:label "colonic cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000188 .

obo:BTO_0002268 a rdfs:Class ;
  rdfs:label "MLE-12 cell" ;
  rdfs:comment "Mouse lung cancer cell line. This line was established in 1992 by Kathryn A. Wikenheiser from pulmonary tumors in a mouse transgenic for the SV40 large T antigen under the control of the promoter region of the human surfactant protein C gene. The cells express the mRNA for large T antigen. Lung surfactant proteins B and C were detected. The cells secrete phospholipids in response to phorbol esters and ATP but not in response to forskolin." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0002749 a rdfs:Class ;
  rdfs:label "HS-74 cell" ;
  rdfs:comment "Normal fetal human diploid bone marrow fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 , obo:BTO_0001242 .

obo:BTO_0004965 a rdfs:Class ;
  rdfs:label "TTA-1 cell" ;
  rdfs:comment "Human undifferentiated thyroid cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0005886 a rdfs:Class ;
  rdfs:label "seedpod" ;
  rdfs:comment "A seed pod is an elongated, two-sided vessel that contain several fertilized seeds. It is a dehiscent fruit or pedicarp - the pod splits open when the seeds are mature. Beans and peas are some plants that have pods." ;
  rdfs:subClassOf obo:BTO_0000486 .

obo:BTO_0002372 a rdfs:Class ;
  rdfs:label "neuroepithelioma cell" ;
  rdfs:comment "A rare type of neuroepithelial tumor, usually found in the brain or retina, composed of primitive neuroepithelial cells lining the tubular spaces." .

obo:BTO_0003600 a rdfs:Class ;
  rdfs:label "M cell" ;
  rdfs:comment "A unique, relatively rare intestinal epithelial cell type specialized for transepithelial transport of macromolecules, particles, and microorganisms. M cells in many species, including humans can be identified by morphological features such as their flattened apical surfaces and intraepithelial pockets containing lymphoid cells." .

obo:BTO_0001636 a rdfs:Class ;
  rdfs:label "arachnoid mater" ;
  rdfs:comment "A delicate membrane that encloses the spinal cord and brain and lies between the pia mater and dura mater." .

obo:BTO_0003181 a rdfs:Class ;
  rdfs:label "WEHI-7.2 cell" ;
  rdfs:comment "Glucocorticoid sensitive murine T cell lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0000640 a rdfs:Class ;
  rdfs:label "intestinal gland" ;
  rdfs:comment "Any of the tubular glands of the intestinal mucous membrane." .

obo:BTO_0000795 a rdfs:Class ;
  rdfs:label "L-5178-Y cell" ;
  rdfs:comment "Mouse T cell lymphoma, established from an 8-month-old female DBA/2 mouse with T cell lymphoma in 1985." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0006488 a rdfs:Class ;
  rdfs:label "steroidogenic cell" ;
  rdfs:comment "Cell of, relating to, or involved in steroidogenesis." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0001732 a rdfs:Class ;
  rdfs:label "gastric antrum" ;
  rdfs:comment "The dilated portion of the pyloric part of the stomach, between the body of the stomach and the pyloric canal." .

obo:BTO_0002556 a rdfs:Class ;
  rdfs:label "HOSE-A cell" ;
  rdfs:comment "Human ovarian surface epithelial (HOSE) cells as a model for ovarian carcinogenesis. Two cultures from two different patients were established, HOSE-A and HOSE-B." ;
  rdfs:subClassOf obo:BTO_0002555 .

obo:BTO_0004293 a rdfs:Class ;
  rdfs:label "heart endothelium" ;
  rdfs:comment "The endothelium, the layer of flat cells lining the closed spaces of the body such as the heart." ;
  rdfs:subClassOf obo:BTO_0000393 .

obo:BTO_0002189 a rdfs:Class ;
  rdfs:label "culture condition:pullulan-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004427 a rdfs:Class ;
  rdfs:label "NCI-H211 cell" ;
  rdfs:comment "Human small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0003597 a rdfs:Class ;
  rdfs:label "uterine leiomyosarcoma cell" ;
  rdfs:comment "A rare type of uterine cancer that forms in muscle or other tissues of the uterus. It usually occurs after menopause. The two main types are leiomyosarcoma (cancer that begins in smooth muscle cells) and endometrial stromal sarcoma (cancer that begins in connective tissue cells)." ;
  rdfs:subClassOf obo:BTO_0003596 .

obo:BTO_0001426 a rdfs:Class ;
  rdfs:label "urethra" ;
  rdfs:comment "The tube through which urine leaves the body. It empties urine from the bladder." .

obo:BTO_0002216 a rdfs:Class ;
  rdfs:label "LN-428 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005314 a rdfs:Class ;
  rdfs:label "nerve sheath cancer cell" ;
  rdfs:comment "A nerve sheath tumor is a type of tumor of the nervous system which is made up primarily of the myelin surrounding nerves." .

obo:BTO_0005847 a rdfs:Class ;
  rdfs:label "Johnston's organ" ;
  rdfs:comment "A sense organ in the second antennal segment of insects that responds to movements of the antennal flagellum and serves as a flight-speed indicator." .

obo:BTO_0001405 a rdfs:Class ;
  rdfs:label "bronchial cancer cell" .

obo:BTO_0000406 a rdfs:Class ;
  rdfs:label "L-428 cell" ;
  rdfs:comment "Human Hodgkin's lymphoma, established from the pleural effusion of a 37-year-old woman with Hodgkin's lymphoma (stage IVB, nodular sclerosis, refractory, terminal) in 1978." ;
  rdfs:subClassOf obo:BTO_0004973 .

obo:BTO_0005235 a rdfs:Class ;
  rdfs:label "culture condition:L-asparagine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000856 a rdfs:Class ;
  rdfs:label "mesocarp" ;
  rdfs:comment "The middle layer of a pericarp." .

obo:BTO_0006490 a rdfs:Class ;
  rdfs:label "GT-38 cell" ;
  rdfs:comment "Human EBV-associated gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0006252 a rdfs:Class ;
  rdfs:label "prostate epithelium cell" .

obo:BTO_0000244 a rdfs:Class ;
  rdfs:label "culture condition:chlorobenzene-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0002629 a rdfs:Class ;
  rdfs:label "T-lymphoblastoid cell line" .

obo:BTO_0005352 a rdfs:Class ;
  rdfs:label "1-LN cell" ;
  rdfs:comment "Human prostate cancer cell line." .

obo:BTO_0002781 a rdfs:Class ;
  rdfs:label "mesenteric vein" ;
  rdfs:comment "One of the large veins which return blood from the intestines." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0006202 a rdfs:Class ;
  rdfs:label "76NF2V cell" ;
  rdfs:comment "Human normal mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0001901 a rdfs:Class ;
  rdfs:label "death phase culture" ;
  rdfs:comment "A cell culture at the final growth phase in a culture, during which nutrients have been depleted and cell number decreases." ;
  rdfs:subClassOf obo:BTO_0001900 .

obo:BTO_0001203 a rdfs:Class ;
  rdfs:label "salivary gland" ;
  rdfs:comment "The glands of the oral cavity whose combined secretion constitutes the saliva." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0005154 a rdfs:Class ;
  rdfs:label "CEM-VBL16 cell" ;
  rdfs:comment "The CEM-VBL16 cell line is a multidrug-resistant derivative of the drugsensitive CEM cell line obtained by selection in medium containing 16 ng/ml respectively of vinblastine." .

obo:BTO_0002004 a rdfs:Class ;
  rdfs:label "LN-229 cell" ;
  rdfs:comment "Human brain, right frontal parieto-occipital cortex, glioblastoma cell line; established from a 60 years old white female." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0000108 a rdfs:Class ;
  rdfs:label "olfactory epithelium" ;
  rdfs:comment "Pseudostratified epithelium lining the olfactory region of the nasal cavity, and containing the receptors for the sense of smell." ;
  rdfs:subClassOf obo:BTO_0000912 .

obo:BTO_0003430 a rdfs:Class ;
  rdfs:label "SEG-1 cell" ;
  rdfs:comment "Barrett's esophageal adenocarcinoma cell line." .

obo:BTO_0003067 a rdfs:Class ;
  rdfs:label "OE-E6/E7 cell" ;
  rdfs:comment "Immortalized human oviductal epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003059 .

obo:BTO_0000786 a rdfs:Class ;
  rdfs:label "tongue cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000885 , obo:BTO_0002211 .

obo:BTO_0003168 a rdfs:Class ;
  rdfs:label "cysticercus" ;
  rdfs:comment "The larval form of any of the Taenia tapeworms." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0002422 a rdfs:Class ;
  rdfs:label "mesothelium" ;
  rdfs:comment "The layer of flat cells, derived from the mesoderm, that line the coelom or body cavity of the embryo. In the adult, it forms the simple squamous epithelium that covers all true serous membranes (peritoneum, pericardium, pleura)." ;
  rdfs:subClassOf obo:BTO_0002072 .

obo:BTO_0001236 a rdfs:Class ;
  rdfs:label "semitendinosus" ;
  rdfs:comment "A fusiform muscle of the posterior and inner part of the thigh that arises from the ischial tuberosity along with the biceps femoris, that is inserted by a long round tendon which forms part of the inner hamstring into the inner surface of the upper part of the shaft of the tibia, and that acts to flex the leg and rotate it medially and to extend the thigh." ;
  rdfs:subClassOf obo:BTO_0003179 .

obo:BTO_0005627 a rdfs:Class ;
  rdfs:label "parametrium" ;
  rdfs:comment "The connective tissue and fat adjacent to the uterus." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0005366 a rdfs:Class ;
  rdfs:label "NCI-H526 cell" ;
  rdfs:comment "Human small cell lung cancer cell line; established from a 55 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0004874 a rdfs:Class ;
  rdfs:label "non-root-hair cell" ;
  rdfs:comment "Epidermal cells that are located over a junction between two cortex cells become root hairs (H cells), whereas the other epidermal cells become non-root-hair cells (N cells)." .

obo:BTO_0006045 a rdfs:Class ;
  rdfs:label "nasopharyngeal cell line" ;
  rdfs:subClassOf obo:BTO_0000819 .

obo:BTO_0000284 a rdfs:Class ;
  rdfs:label "organism form" ;
  rdfs:subClassOf obo:BTO_0000000 .

obo:BTO_0002059 a rdfs:Class ;
  rdfs:label "large cell carcinoma cell" ;
  rdfs:comment "A group of lung cancers in which the cells are large and look abnormal." ;
  rdfs:subClassOf obo:BTO_0002058 .

obo:BTO_0001372 a rdfs:Class ;
  rdfs:label "thymocyte" ;
  rdfs:comment "Lymphocyte within the thymus; term usually applied to an immature lymphocyte." ;
  rdfs:subClassOf obo:BTO_0001145 .

obo:BTO_0006167 a rdfs:Class ;
  rdfs:label "nucleus preopticus medialis" ;
  rdfs:comment "A nucleus of nerve cells in the preoptic area of the basal forebrain." ;
  rdfs:subClassOf obo:BTO_0003664 .

obo:BTO_0001847 a rdfs:Class ;
  rdfs:label "umbilical smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 , obo:BTO_0001415 .

obo:BTO_0000396 a rdfs:Class ;
  rdfs:label "EAhy 926 cell" ;
  rdfs:comment "Somatic cell hybrid cell line. The human umbilical vein cell line was established by fusing primary human umbilical vein cells with a thioguanine-resistant clone of A549 by exposure to polyethylene glycol. Hybrid clones were selected in HAT medium and screened for factor VIII-related antigen." ;
  rdfs:subClassOf obo:BTO_0000762 , obo:BTO_0001520 .

obo:BTO_0000067 a rdfs:Class ;
  rdfs:label "kidney cell line" .

obo:BTO_0003206 a rdfs:Class ;
  rdfs:label "A-253 cell" ;
  rdfs:comment "Human submaxillary salivary gland cell line, established from a 54-years-old caucasian male." ;
  rdfs:subClassOf obo:BTO_0003205 .

obo:BTO_0004120 a rdfs:Class ;
  rdfs:label "horizontal cell" ;
  rdfs:comment "Horizontal cells are the laterally interconnecting neurons in the outer plexiform layer of the retina of mammalian eyes. They help integrate and regulate the input from multiple photoreceptor cells. Among their functions, horizontal cells are responsible for allowing eyes to adjust to see well under both bright and dim light conditions." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0002227 a rdfs:Class ;
  rdfs:label "culture condition:citrate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000197 a rdfs:Class ;
  rdfs:label "carcinosarcoma cell" ;
  rdfs:comment "A cell of a malignant tumor that is a mixture of carcinoma (cancer of epithelial tissue, which is skin and tissue that lines or covers the internal organs) and sarcoma (cancer of connective tissue, such as bone, cartilage, and fat)." ;
  rdfs:subClassOf obo:BTO_0000176 , obo:BTO_0001207 .

obo:BTO_0000952 a rdfs:Class ;
  rdfs:label "nuchal ligament" ;
  rdfs:comment "A broad, fibrous, roughly triangular sagittal septum in the back of the neck, separating the right and left sides. It extends from the tips of the spinous processes of all the cervical vertebrae to attach to the entire length of the external occipital crest. Caudally it is continuous with the supraspinous ligament." .

obo:BTO_0004885 a rdfs:Class ;
  rdfs:label "OSA-344 cell" ;
  rdfs:comment "Osteosarcoma cell line; established from primary osteosarcoma tissue." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0003611 a rdfs:Class ;
  rdfs:label "culture condition:L-tryptophan-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001800 a rdfs:Class ;
  rdfs:label "retinal ganglion cell" ;
  rdfs:comment "Cells of the innermost nuclear layer of the retina, the ganglion cell layer, which project axons through the optic nerve to the brain. They are quite variable in size and in the shapes of their dendritic arbors, which are generally confined to the inner plexiform layer." .

obo:BTO_0005521 a rdfs:Class ;
  rdfs:label "GM0536 cell" ;
  rdfs:comment "Human EBV-transformed lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0005240 a rdfs:Class ;
  rdfs:label "pharyngeal epithelium" ;
  rdfs:comment "Epithelium lining the pharynx consisting largely of simple columnar epithelium with a short segment (1mm) of stratified squamous epithelium on the ventral side." .

obo:BTO_0000792 a rdfs:Class ;
  rdfs:label "urinary bladder carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000096 , obo:BTO_0000297 .

obo:BTO_0005029 a rdfs:Class ;
  rdfs:label "HEK-293FT cell" ;
  rdfs:comment "The 293FT cell line is a fast-growing, highly transfectable clonal isolate derived from human embryonal kidney cells transformed with the SV40 large T antigen." .

obo:BTO_0003878 a rdfs:Class ;
  rdfs:label "BGC-823 cell" ;
  rdfs:comment "Human gastric cancer cell line." .

obo:BTO_0005475 a rdfs:Class ;
  rdfs:label "SUM-149PT cell" ;
  rdfs:comment "Human breast cancer cell line, derived from a locally advanced primary human inflammatory ductal carcinoma." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0005288 a rdfs:Class ;
  rdfs:label "CL-48 cell" ;
  rdfs:comment "Normal human fetal liver cell line." .

obo:BTO_0002394 a rdfs:Class ;
  rdfs:label "DC-3F cell" ;
  rdfs:comment "Chinese hamster lung fibroblast cell line." .

obo:BTO_0004795 a rdfs:Class ;
  rdfs:label "JHU-1 cell" ;
  rdfs:comment "The tumor cell line was derived from primary lung epithelial cells of C57BL/6 mice." ;
  rdfs:subClassOf obo:BTO_0003213 .

obo:BTO_0002361 a rdfs:Class ;
  rdfs:label "osteochondroma cell" ;
  rdfs:comment "A benign tumor consisting of projecting adult bone capped by cartilage projecting from the lateral contours of endochondral bones." ;
  rdfs:subClassOf obo:BTO_0000372 .

obo:BTO_0002242 a rdfs:Class ;
  rdfs:label "oral epithelial cell" .

obo:BTO_0005176 a rdfs:Class ;
  rdfs:label "L-540 cell" ;
  rdfs:comment "Human Hodgkin lymphoma cell line,\testablished from the bone marrow of a 20-year-old woman with Hodgkin lymphoma (nodular sclerosis; stage IVB, pre-terminal stage)." ;
  rdfs:subClassOf obo:BTO_0004973 .

obo:BTO_0003925 a rdfs:Class ;
  rdfs:label "renal papilla" ;
  rdfs:comment "The apex of a renal pyramid which projects into the lumen of a calyx of the kidney and through which collecting tubules discharge urine." .

obo:BTO_0000095 a rdfs:Class ;
  rdfs:label "F-9 cell" ;
  rdfs:comment "Mouse embryonal carcinoma, initiated from a testicular teratocarcinoma of a strain 129 mouse." ;
  rdfs:subClassOf obo:BTO_0000306 , obo:BTO_0001437 .

obo:BTO_0003399 a rdfs:Class ;
  rdfs:label "avian pallium" ;
  rdfs:comment "In the anatomy of animals, an avian pallium is the dorsal telencephalon of a bird's brain. Pallium of avian species tend to be relatively large, comprising ~75% of the telencephalic volume." ;
  rdfs:subClassOf obo:BTO_0000239 .

obo:BTO_0002202 a rdfs:Class ;
  rdfs:label "lung squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000762 , obo:BTO_0002024 .

obo:BTO_0006404 a rdfs:Class ;
  rdfs:label "JHU-028 cell" ;
  rdfs:comment "Originally thought to be a HNSCC cell line, but it was cross-contaminated by A549 lung cancer cells." .

obo:BTO_0002693 a rdfs:Class ;
  rdfs:label "culture condition:toluene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004298 a rdfs:Class ;
  rdfs:label "corneal epithelial cell" .

obo:BTO_0006464 a rdfs:Class ;
  rdfs:label "muscle invasive bladder cancer cell" ;
  rdfs:comment "Muscle invasive bladder cancer (MIBC) is a cancer that spreads into the detrusor muscle of the bladder." ;
  rdfs:subClassOf obo:BTO_0000362 .

obo:BTO_0006279 a rdfs:Class ;
  rdfs:label "tubulointerstitium" ;
  rdfs:comment "The tubules and interstitial tissue of the kidneys." ;
  rdfs:subClassOf obo:BTO_0000671 .

obo:BTO_0002354 a rdfs:Class ;
  rdfs:label "talus" ;
  rdfs:comment "The highest of the tarsal bones and the one that articulates with the tibia and fibula to form the ankle joint." ;
  rdfs:subClassOf obo:BTO_0002343 .

obo:BTO_0000662 a rdfs:Class ;
  rdfs:label "nasopharynx" ;
  rdfs:comment "The upper part of the throat behind the nose. An opening on each side of the nasopharynx leads into the ear." .

obo:BTO_0003053 a rdfs:Class ;
  rdfs:label "NCI-N87 cell" ;
  rdfs:comment "NCI-N87 is a gastric carcinoma cell line derived in 1976 by A. Gazdar and associates at the National Cancer Institute from a liver metastasis of a well differentiated carcinoma of the stomach taken prior to cytotoxic therapy. The tumor was passaged as a xenograft in athymic nude mice for three passages before the cell line was established." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0000963 a rdfs:Class ;
  rdfs:label "oligodendroglioma cell" ;
  rdfs:comment "A rare, slow-growing tumor cell that begins in the oligodendrocytes (brain cells that provide support and nourishment for nerve cells)." .

obo:BTO_0001467 a rdfs:Class ;
  rdfs:label "mesocotyl" ;
  rdfs:comment "The internode between the scutellar node and coleoptile in the embryo and seedling of Poaceae." .

obo:BTO_0003607 a rdfs:Class ;
  rdfs:label "chondroblast" ;
  rdfs:comment "An immature cartilage-producing cell." .

obo:BTO_0000633 a rdfs:Class ;
  rdfs:label "Intestine-407 cell" ;
  rdfs:comment "Human Caucasian embryonic intestine, HeLa characteristics." .

obo:BTO_0003217 a rdfs:Class ;
  rdfs:label "melanoblast" ;
  rdfs:comment "A precursor cell of a melanocyte or melanophore." ;
  rdfs:subClassOf obo:BTO_0001470 .

obo:BTO_0001437 a rdfs:Class ;
  rdfs:label "embryonic carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0005803 a rdfs:Class ;
  rdfs:label "dentate gyrus HIPP cell" ;
  rdfs:comment "The dentate gyrus HIPP cell (Hilar Perforant Path-associated cell) is an interneuron in the hippocampal formation. It is a long-spined multipolar cell that is conspicuous of distribution of copious, long and often branched spines over its cell body and dendrites. The axonal plexus can extend as much as 3.5mm along the septotemporal axis of the dentate gyrus. Since inhibitory interneurons typically have aspiny dendrites and relatively local axonal plexuses, this long spined multipolar/HIPP cell is a very atypical interneuron." .

obo:BTO_0004237 a rdfs:Class ;
  rdfs:label "myometrial cell line" .

obo:BTO_0005640 a rdfs:Class ;
  rdfs:label "aortic adventitial fibroblast" ;
  rdfs:comment "Human Aortic Adventitial Fibroblasts (HAoAF). Primary human aortic adventitial fibroblasts (HAoAF) are isolated from human aortic adventitial tissue." ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0002530 a rdfs:Class ;
  rdfs:label "HBL-9 cell" ;
  rdfs:comment "Burkitt lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0002651 a rdfs:Class ;
  rdfs:label "piriform area" ;
  rdfs:comment "An area in the rhinencephalon, pear-shaped in some species but not in humans; it includes the lateral olfactory process or gyrus, the limen insulae, the uncus, and part of the parahippocampal gyrus; subdivided into the prepiriform area, the periamygdaloid area, and the entorhinal area." .

obo:BTO_0004139 a rdfs:Class ;
  rdfs:label "LAD-2 cell" ;
  rdfs:comment "Growth factor-dependent human mast cell line." ;
  rdfs:subClassOf obo:BTO_0001668 .

obo:BTO_0005670 a rdfs:Class ;
  rdfs:label "C-20/A4 cell" ;
  rdfs:comment "Human chondrocyte cell line, derived from juvenile costal chondrocytes by immortalization with origin-defective simian virus 40 large T antigen." ;
  rdfs:subClassOf obo:BTO_0003858 .

obo:BTO_0004582 a rdfs:Class ;
  rdfs:label "A31N-ts20 cell" ;
  rdfs:comment "Mouse embryonic fibroblast cell line." .

obo:BTO_0000696 a rdfs:Class ;
  rdfs:label "culture condition:L-rhamnose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005961 a rdfs:Class ;
  rdfs:label "GM03440 cell" ;
  rdfs:comment "Human skin fibroblast cell line; established from a skin biopsy of the leg of a caucasian male." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0000476 a rdfs:Class ;
  rdfs:label "foot" ;
  rdfs:comment "1: The terminal part of the vertebrate leg upon which an individual stands. 2: An invertebrate organ of locomotion or attachment; especially: a ventral muscular surface or process of a mollusk." ;
  rdfs:subClassOf obo:BTO_0001492 .

obo:BTO_0002321 a rdfs:Class ;
  rdfs:label "intermediate muscle fiber" ;
  rdfs:comment "Muscle fibers having characteristics intermediate between red and white muscle fibers." ;
  rdfs:subClassOf obo:BTO_0002319 .

obo:BTO_0000374 a rdfs:Class ;
  rdfs:label "bone cell line" .

obo:BTO_0001242 a rdfs:Class ;
  rdfs:label "fetal cell line" .

obo:BTO_0006185 a rdfs:Class ;
  rdfs:label "buffy coat cell" ;
  rdfs:comment "The buffy coat is the fraction of an anticoagulated blood sample that contains most of the white blood cells and platelets following density gradient centrifugation of the blood." .

obo:BTO_0005513 a rdfs:Class ;
  rdfs:label "cercaria" ;
  rdfs:comment "A usually tadpole-shaped larval trematode worm that develops in a molluscan host from a redia." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0004896 a rdfs:Class ;
  rdfs:label "IMEC cell" ;
  rdfs:comment "TERT-immortalized human mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0001614 a rdfs:Class ;
  rdfs:label "colorectal cell line" .

obo:BTO_0004756 a rdfs:Class ;
  rdfs:label "venous endothelium" ;
  rdfs:subClassOf obo:BTO_0000766 .

obo:BTO_0005421 a rdfs:Class ;
  rdfs:label "spiral-associated trophoblast giant cell" ;
  rdfs:subClassOf obo:BTO_0005362 .

obo:BTO_0000742 a rdfs:Class ;
  rdfs:label "myotome" ;
  rdfs:comment "The portion of an embryonic somite from which skeletal musculature is produced." .

obo:BTO_0006105 a rdfs:Class ;
  rdfs:label "skeletal muscle satellite stem cell" ;
  rdfs:comment "A skeletal muscle satellite cell that divides by stem cell division.  A proportion of this population undergoes symmetric stem cell division, producing two skeletal muscle satellite stem cells. The rest undergo asymmetric stem cell division - retaining their identity while budding off a daughter cell that differentiates into an adult skeletal muscle myoblast." ;
  rdfs:subClassOf obo:BTO_0005787 .

obo:BTO_0002986 a rdfs:Class ;
  rdfs:label "culture condition:molybdate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002294 a rdfs:Class ;
  rdfs:label "solid substrate culture" ;
  rdfs:comment "Cell culture on a solid material." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0005615 a rdfs:Class ;
  rdfs:label "KM-20C cell" ;
  rdfs:comment "Human primary colon cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0001149 a rdfs:Class ;
  rdfs:label "quadriceps" ;
  rdfs:comment "The greater extensor muscle of the front of the thigh that is divided into four parts: rectus femoris, vastus intermedius, vastus lateralis, and vastus medialis." ;
  rdfs:subClassOf obo:BTO_0000151 , obo:BTO_0001367 .

obo:BTO_0003987 a rdfs:Class ;
  rdfs:label "root culture" ;
  rdfs:comment "Generally excised root is cultured in liquid medium. The techniques of root culture give certain important informations such as nutritional requirements, infection by Rhizobium and nodulation and physiological activities, for example, production of alkaloids and nicotine." ;
  rdfs:subClassOf obo:BTO_0003841 .

obo:BTO_0001157 a rdfs:Class ;
  rdfs:label "rectal gland" ;
  rdfs:comment "An evagination of the terminal portion of the intestine of Elasmobranchii. Function formerly thought to be related to digestion or excretion, but now considered to secrete high concentrations of excess sodium chloride. Found also in the coelacanth Latimeria chalumnae." .

obo:BTO_0004179 a rdfs:Class ;
  rdfs:label "MX-1 cell" ;
  rdfs:comment "Human breast carcinoma cell line; established in vitro from the primary infiltrating duct carcinoma of a 40 year-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0003976 a rdfs:Class ;
  rdfs:label "cingulate gyrus" ;
  rdfs:comment "Cingulate gyrus (belt ridge in english) is a gyrus in the medial part of the brain. It partially wraps around the corpus callosum and is limited above by the cingulate sulcus. The cortical part of the cingulate gyrus is referred to as cingulate cortex." ;
  rdfs:subClassOf obo:BTO_0002495 .

obo:BTO_0001448 a rdfs:Class ;
  rdfs:label "visceral hump" ;
  rdfs:comment "Mollusks have three distinct divisions of their body. The head contains the sensory equipment (eyes, antennae, etc) and the primitive brain. The visceral hump, which is the main body, contains most of the organs, including a complete digestive and excretory tract as well as the reproductive organs. The visceral hump also includes the two external flaps of tissue, which are known as the mantle." .

obo:BTO_0005632 a rdfs:Class ;
  rdfs:label "sympodium" ;
  rdfs:comment "The main axis of growth in the grapevine and similar plants: a lateral branch that arises from just behind the apex of the main stem, which ceases to grow, and continues growing in the same direction as the main stem." ;
  rdfs:subClassOf obo:BTO_0001300 .

obo:BTO_0006230 a rdfs:Class ;
  rdfs:label "culture condition:camphor-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005825 a rdfs:Class ;
  rdfs:label "ctenidium" ;
  rdfs:comment "1: The gill of a mollusk consisting typically of a respiratory structure that resembles a comb or feather, has a main stem with lateral lamellae, and is developed from the inner side of the mantle. 2:A structure consisting of a row of spines resembling the teeth of a comb on the head or thorax, or both, of certain fleas." ;
  rdfs:subClassOf obo:BTO_0000518 .

obo:BTO_0001001 a rdfs:Class ;
  rdfs:label "parietal lobe" ;
  rdfs:comment "The upper central lobe of the cerebral hemisphere, separated from the temporal lobe below by the lateral sulcus, but continuous at the posterior end of that sulcus, and separated from the frontal lobe by the central sulcus. Behind, it is continuous with the occipital lobe on the lateral surface, but separated from it by the parietooccipital sulcus on the medial surface." .

obo:BTO_0005605 a rdfs:Class ;
  rdfs:label "pulmonary neuroendocrine tumor cell" ;
  rdfs:comment "Neuroendocrine tumors (NETs) are neoplasms that arise from cells of the endocrine (hormonal) and nervous systems. Many are benign, while some are malignant. They most commonly occur in the intestine, where they are often called carcinoid tumors, but they are also found in the lung and the rest of the body." ;
  rdfs:subClassOf obo:BTO_0000551 , obo:BTO_0001407 .

obo:BTO_0005347 a rdfs:Class ;
  rdfs:label "UKRV-Mel-06a cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000930 a rdfs:Class ;
  rdfs:label "neuroblast" ;
  rdfs:comment "Any embryonic cell which develops into a nerve cell or neuron; an immature nerve cell." .

obo:BTO_0004355 a rdfs:Class ;
  rdfs:label "perirhinal cortex" ;
  rdfs:comment "Perirhinal cortex is a cortical region in the medial temporal lobe that is made up of Brodmann areas 35 and 36. In rats, it is located along and dorsal to the rhinal sulcus. It receives highly-processed sensory information from all sensory regions, and is generally accepted to be an important region for memory." .

obo:BTO_0001877 a rdfs:Class ;
  rdfs:label "psoas major" ;
  rdfs:comment "A powerful flexor of the thigh at the hip joint. Psoas is derived from the Greek psoa, the plural meaning muscles of the loin." ;
  rdfs:subClassOf obo:BTO_0001140 .

obo:BTO_0002920 a rdfs:Class ;
  rdfs:label "Y-79 cell" ;
  rdfs:comment "Human retinoblastoma cell line; established from the primary tumor (right eye) of a 2-year-old Caucasian girl in 1971." ;
  rdfs:subClassOf obo:BTO_0002919 .

obo:BTO_0001400 a rdfs:Class ;
  rdfs:label "tuber" ;
  rdfs:comment "A short fleshy usually underground stem bearing minute scale leaves each of which bears a bud in its axil and is potentially able to produce a new plant." ;
  rdfs:subClassOf obo:BTO_0001300 .

obo:BTO_0003995 a rdfs:Class ;
  rdfs:label "horny lamina" ;
  rdfs:comment "The laminae on the inside of the hoof which interdigitate with the sensitive laminae attached to the hoof corium." ;
  rdfs:subClassOf obo:BTO_0003997 .

obo:BTO_0002400 a rdfs:Class ;
  rdfs:label "OLN-93 cell" ;
  rdfs:comment "The permanent oligodendrocyte cell line OLN-93, derived from spontaneously transformed cells in primary rat brain glia cultures." ;
  rdfs:subClassOf obo:BTO_0000872 .

obo:BTO_0005384 a rdfs:Class ;
  rdfs:label "Rh-28 cell" ;
  rdfs:comment "Human alveolar rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0006076 a rdfs:Class ;
  rdfs:label "benign prostatic hyperplasia cell" ;
  rdfs:comment "Benign enlargement of the prostate, a noncancerous increase in size of the prostate. BPH involves hyperplasia of prostatic stromal and epithelial cells, resulting in the formation of large, fairly discrete nodules in the transition zone of the prostate. It involves hyperplasia - an increase in the number of cells - rather than hypertrophy - a growth in the size of individual cells." .

obo:BTO_0002607 a rdfs:Class ;
  rdfs:label "SK-LMS-1 cell" ;
  rdfs:comment "Human vulva leiomyosarcoma cell line; established from a 43-years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0002488 .

obo:BTO_0005569 a rdfs:Class ;
  rdfs:label "hair follicle dermal papilla cell" ;
  rdfs:subClassOf obo:BTO_0001858 .

obo:BTO_0002238 a rdfs:Class ;
  rdfs:label "endomycorrhiza" ;
  rdfs:comment "Endomycorrhizae are organs where the fungus hyphae are mainly throughout the non-wood root." ;
  rdfs:subClassOf obo:BTO_0000893 .

obo:BTO_0002874 a rdfs:Class ;
  rdfs:label "Rat-2 cell" ;
  rdfs:comment "This line was derived from the a 5-bromo-2'-deoxyuridine resistant strain of the Fischer rat fibroblast 3T3 like cell line, Rat1. Rat2 lacks detectable nuclear thymidine kinase, is highly transfectable by exogenous DNA and is phenotypically normal." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0002953 a rdfs:Class ;
  rdfs:label "Mel499 cell" ;
  rdfs:comment "Metastatic human melanoma, obtained from patients with no history of chemotherapy or immunotherapy by surgical removal." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003647 a rdfs:Class ;
  rdfs:label "olfactory tract" ;
  rdfs:comment "A nervelike, white band composed primarily of nerve fibres originating from the mitral cells and tufted cells of the olfactory bulb but also containing the scattered cells of the anterior olfactory nucleus." .

obo:BTO_0002882 a rdfs:Class ;
  rdfs:label "32D cell" ;
  rdfs:comment "Mouse bone marrow cell line; established from long-term bone marrow cultures of C3H/HeJ mice infected with the Friend murine leukemia virus." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0006453 a rdfs:Class ;
  rdfs:label "HEK-293S cell" ;
  rdfs:comment "Human embryonic kidney cell line expressing opsins." .

obo:BTO_0000566 a rdfs:Class ;
  rdfs:label "pancreatic islet cancer cell" .

obo:BTO_0001231 a rdfs:Class ;
  rdfs:label "trigeminal ganglion" ;
  rdfs:comment "A ganglion on the sensory root of the fifth cranial nerve, situated in a cleft within the dura mater (trigeminal cave) on the anterior surface of the petrous portion of the temporal bone, and giving off the ophthalmic and maxillary and part of the mandibular nerve; it contains the cells of origin of most of the sensory fibers of the trigeminal nerve." ;
  rdfs:subClassOf obo:BTO_0000106 .

obo:BTO_0002383 a rdfs:Class ;
  rdfs:label "MKN-74 cell" ;
  rdfs:comment "Well differentiated human gastric adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0000813 a rdfs:Class ;
  rdfs:label "Pt-K1 cell" ;
  rdfs:comment "Marsupial - potoroo, kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0004947 a rdfs:Class ;
  rdfs:label "UTP-L10 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0001625 a rdfs:Class ;
  rdfs:label "laryngeal cancer cell" ;
  rdfs:comment "Cancer or tumor cell of the larynx or any of its parts: the glottis, epiglottis, laryngeal cartilages, laryngeal muscles, and vocal cords." .

obo:BTO_0002763 a rdfs:Class ;
  rdfs:label "PC6-11 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0000391 a rdfs:Class ;
  rdfs:label "DLD-1 cell" ;
  rdfs:comment "Human colon adenocarcinoma established from a colorectal adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0003838 a rdfs:Class ;
  rdfs:label "nucleus globosus" ;
  rdfs:subClassOf obo:BTO_0003835 .

obo:BTO_0000251 a rdfs:Class ;
  rdfs:label "chorioallantois" ;
  rdfs:comment "A vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois that in the hen's egg is used as a living culture medium for viruses and for tissues." ;
  rdfs:subClassOf obo:BTO_0000473 .

obo:BTO_0001181 a rdfs:Class ;
  rdfs:label "rhizome" ;
  rdfs:comment "A somewhat elongate usually horizontal subterranean plant stem that is often thickened by deposits of reserve food material, produces shoots above and roots below, and is distinguished from a true root in possessing buds, nodes, and usually scalelike leaves." .

obo:BTO_0001015 a rdfs:Class ;
  rdfs:label "culture condition:pentanoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002792 a rdfs:Class ;
  rdfs:label "culture condition:citrulline-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002575 a rdfs:Class ;
  rdfs:label "IGROV-1 cell" ;
  rdfs:comment "Human ovary carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0000851 a rdfs:Class ;
  rdfs:label "adrenal cortex cell line" .

obo:BTO_0000712 a rdfs:Class ;
  rdfs:label "laticifer" ;
  rdfs:comment "A plant cell or vessel that contains latex." .

obo:BTO_0001506 a rdfs:Class ;
  rdfs:label "radula" ;
  rdfs:comment "A flexible tonguelike organ in certain mollusks, having rows of horny teeth on the surface." ;
  rdfs:subClassOf obo:BTO_0001385 .

obo:BTO_0002704 a rdfs:Class ;
  rdfs:label "lateral amygdaloid nucleus" ;
  rdfs:comment "A nucleus in the basolateral part of the amygdaloid body." .

obo:BTO_0006354 a rdfs:Class ;
  rdfs:label "tracheal fluid" .

obo:BTO_0002626 a rdfs:Class ;
  rdfs:label "venule" ;
  rdfs:comment "A small vein, especially one joining capillaries to larger veins." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0000461 a rdfs:Class ;
  rdfs:label "HSDM1C1 cell" ;
  rdfs:comment "Mouse Swiss Albino fibrosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000460 .

obo:BTO_0004944 a rdfs:Class ;
  rdfs:label "KOPN-1 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0000182 a rdfs:Class ;
  rdfs:label "HT-29 cell" ;
  rdfs:comment "Human colon adenocarcinoma, established from the primary tumor of a 44-year-old Caucasian woman with colon adenocarcinoma in 1964; described to be heterotransplantable forming well-differentiated grade I tumors." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0002694 a rdfs:Class ;
  rdfs:label "leiomyoma cell" ;
  rdfs:comment "A benign tumor derived from smooth muscle, most commonly of the uterus." .

obo:BTO_0003179 a rdfs:Class ;
  rdfs:label "hamstring muscle" ;
  rdfs:comment "Any of three muscles at the back of the thigh that function to flex and rotate the leg and extend the thigh." ;
  rdfs:subClassOf obo:BTO_0001367 .

obo:BTO_0001553 a rdfs:Class ;
  rdfs:label "LS-174T cell" ;
  rdfs:comment "Human Caucasian colon adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0006178 a rdfs:Class ;
  rdfs:label "temporal gyrus" ;
  rdfs:comment "The superior, the middle, or the inferior temporal gyrus." ;
  rdfs:subClassOf obo:BTO_0002495 .

obo:BTO_0003210 a rdfs:Class ;
  rdfs:label "papillary thyroid cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001610 .

obo:BTO_0002257 a rdfs:Class ;
  rdfs:label "heterotrophic cell" ;
  rdfs:comment "Not self-sustaining cell; said of a type of nutrition in which organisms derive energy from the oxidation of organic compounds either by consumption or absorption of other organisms." ;
  rdfs:subClassOf obo:BTO_0002256 , obo:BTO_0002322 .

obo:BTO_0001538 a rdfs:Class ;
  rdfs:label "COS-1 cell" ;
  rdfs:comment "African green monkey kidney cell line; established from CV-1 Simian cells (cercopithecus aethiops) which were transformed by an origin-defective mutant of SV-40; cells are host cells for the propagation of pure populations of recombinant SV virus." ;
  rdfs:subClassOf obo:BTO_0004055 .

obo:BTO_0001120 a rdfs:Class ;
  rdfs:label "epithelial cell line" .

obo:BTO_0002470 a rdfs:Class ;
  rdfs:label "ventral medial complex of thalamus" ;
  rdfs:comment "A group of nuclei located in the medial portion of the ventral thalamic nuclei." ;
  rdfs:subClassOf obo:BTO_0002467 .

obo:BTO_0001980 a rdfs:Class ;
  rdfs:label "sebaceous gland" ;
  rdfs:comment "Any of various glands in the dermis of the skin that open into a hair follicle and produce and secrete sebum." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0001585 a rdfs:Class ;
  rdfs:label "JAR cell" ;
  rdfs:comment "Human choriocarcinoma cell line; established from the trophoblastic tumor of the placenta of a 24-year-old caucasian woman." ;
  rdfs:subClassOf obo:BTO_0001575 .

obo:BTO_0005126 a rdfs:Class ;
  rdfs:label "Myc-CaP cell" ;
  rdfs:comment "Androgen-dependent prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005290 a rdfs:Class ;
  rdfs:label "TE 353.Sk cell" ;
  rdfs:comment "Skin normal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0006363 a rdfs:Class ;
  rdfs:label "rete mirabile" ;
  rdfs:comment "A small but dense network of blood vessels formed by the breaking up of a larger vessel into branches that usually reunite into one trunk and believed especially important as an oxygen-storing mechanism in aquatic mammals." ;
  rdfs:subClassOf obo:BTO_0001102 .

obo:BTO_0002178 a rdfs:Class ;
  rdfs:label "HMEpC cell" ;
  rdfs:comment "Human Mammary Epithelial Cells (HMEpC) are derived from normal adult mammary glands." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0001168 a rdfs:Class ;
  rdfs:label "rennet" ;
  rdfs:comment "1: The inner lining of the fourth stomach of calves and other young ruminants. 2: A dried extract made from the stomach lining of a ruminant, used in cheesemaking to curdle milk." ;
  rdfs:subClassOf obo:BTO_0000024 .

obo:BTO_0001322 a rdfs:Class ;
  rdfs:label "culture condition:succinate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001631 a rdfs:Class ;
  rdfs:label "leiomyosarcoma cell" ;
  rdfs:comment "A malignant tumor cell of smooth muscle origin. Smooth muscle is the major structural component of most hollow internal organs and the walls of blood vessels. Can occur almost anywhere in the body but is most frequent in the uterus and gastrointestinal tract. Complete surgical excision, if possible, is the treatment of choice." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0003803 a rdfs:Class ;
  rdfs:label "serous adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 .

obo:BTO_0004618 a rdfs:Class ;
  rdfs:label "T-289 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005711 a rdfs:Class ;
  rdfs:label "Mel007 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002310 a rdfs:Class ;
  rdfs:label "mammary myoepithelium" ;
  rdfs:subClassOf obo:BTO_0002308 .

obo:BTO_0000413 a rdfs:Class ;
  rdfs:label "epiphysis" ;
  rdfs:comment "A part or process of a bone that ossifies separately and later becomes ankylosed to the main part of the bone; especially: an end of a long bone." .

obo:BTO_0001657 a rdfs:Class ;
  rdfs:label "abscission zone" ;
  rdfs:comment "The region at the base of a leaf, flower, fruit, or other plant part, where the formation of a cork layer results in the separation of that part from the plant body." .

obo:BTO_0000475 a rdfs:Class ;
  rdfs:label "ovarian follicle" ;
  rdfs:comment "A vesicle in the mammalian ovary that contains a developing egg surrounded by a covering of cells. But there are also insect ovarian follicle cells." .

obo:BTO_0004767 a rdfs:Class ;
  rdfs:label "MB-02 cell" ;
  rdfs:comment "Acute myeloid leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004740 a rdfs:Class ;
  rdfs:label "CGTH-W1 cell" ;
  rdfs:comment "Follicular thyroid cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003874 .

obo:BTO_0004782 a rdfs:Class ;
  rdfs:label "SK-N-BE(2)C cell" ;
  rdfs:comment "Human neuroblastoma cell line." .

obo:BTO_0005143 a rdfs:Class ;
  rdfs:label "OCUT-2 cell" ;
  rdfs:comment "Human undifferentiated thyroid cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0000759 a rdfs:Class ;
  rdfs:label "liver" ;
  rdfs:comment "1: A large very vascular glandular organ of vertebrates that secretes bile and causes important changes in many of the substances contained in the blood (as by converting sugars into glycogen which it stores up until required and by forming urea). 2: Any of various large compound glands associated with the digestive tract of invertebrate animals and probably concerned with the secretion of digestive enzymes." ;
  rdfs:subClassOf obo:BTO_0000345 , obo:BTO_0001491 .

obo:BTO_0005515 a rdfs:Class ;
  rdfs:label "leaf vein" ;
  rdfs:comment "The veins are the vascular tissue of the leaf and are located in the sponge layer of the mesophyll." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0005890 a rdfs:Class ;
  rdfs:label "xylem parenchyma cell" ;
  rdfs:comment "Xylem tissue features thin-walled, unspecialized parenchyma cells, for the storage of various substances." .

obo:BTO_0000695 a rdfs:Class ;
  rdfs:label "culture condition:L-phenylglycine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000540 a rdfs:Class ;
  rdfs:label "pollen mother cell" ;
  rdfs:comment "A diploid plant cell that forms four microspores by meiosis; the microspores give rise to pollen grains in seed plants." .

obo:BTO_0004669 a rdfs:Class ;
  rdfs:label "finger" ;
  rdfs:comment "Any of the five terminating members of the hand, a digit of the forelimb." .

obo:BTO_0002592 a rdfs:Class ;
  rdfs:label "DC-3F/S16 cell" ;
  rdfs:comment "Subline of DC-3F resistant to the olovacine derivative S16020-2, named DC-3F/S16." .

obo:BTO_0003777 a rdfs:Class ;
  rdfs:label "SCaBER cell" ;
  rdfs:comment "Human urinary bladder squamous cell carcinoma cell line; established from a 58 years old black men." ;
  rdfs:subClassOf obo:BTO_0003776 .

obo:BTO_0006458 a rdfs:Class ;
  rdfs:label "HepG2-VL17A cell" ;
  rdfs:comment "VL-17A cell line,  which are HepG2 cells over-expressing alcohol dehydrogenase (ADH) and cytochrome P450 2E1 (CYP2E1)." .

obo:BTO_0004263 a rdfs:Class ;
  rdfs:label "COM-3 cell" ;
  rdfs:comment "A differentiating cell line, established from the mouse myoblastic cell line C2C12." .

obo:BTO_0005860 a rdfs:Class ;
  rdfs:label "LA1-55n cell" ;
  rdfs:comment "Human neuroblastoma cell line, derived from LA1-5s a clonal subline of LA-N-1. LA-N-1 was derived from neuroblastoma cells in the bone marrow of a 2-year-old male with clinical Stage IV neuroblastoma." .

obo:BTO_0005341 a rdfs:Class ;
  rdfs:label "Ma-Mel-17 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006056 a rdfs:Class ;
  rdfs:label "SJNB-12 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000320 a rdfs:Class ;
  rdfs:label "cyst" ;
  rdfs:comment "A body resembling a cyst: as a 1: capsule formed about a minute organism going into a resting or spore stage; also: this capsule with its contents. 2: a resistant cover about a parasite produced by the parasite or the host." ;
  rdfs:subClassOf obo:BTO_0000139 , obo:BTO_0000284 .

obo:BTO_0001360 a rdfs:Class ;
  rdfs:label "decidua" ;
  rdfs:comment "1: The part of the mucous membrane lining the uterus that in higher placental mammals undergoes special modifications in preparation for and during pregnancy and is cast off at parturition. 2: The part of the mucous membrane of the uterus cast off in the process of menstruation." .

obo:BTO_0000319 a rdfs:Class ;
  rdfs:label "culture condition:cyclohexanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003273 a rdfs:Class ;
  rdfs:label "saphenous vein endothelium" .

obo:BTO_0005820 a rdfs:Class ;
  rdfs:label "CATH.a cell" ;
  rdfs:comment "Mouse brain neuronal cell line; established from cultures of a tumor that arose in the brain of a transgenic mouse; A CNS catecholaminergic cell line; established by targeted oncogenesis in transgenic mice. Cath.a cells express neuronal properties but lack neuronal morphology." ;
  rdfs:subClassOf obo:BTO_0000690 , obo:BTO_0000947 , obo:BTO_0003694 .

obo:BTO_0005592 a rdfs:Class ;
  rdfs:label "mesocortical dopaminergic system" ;
  rdfs:comment "The mesocortical dopaminergic system which includes the ventral tegmental area, extends its fibers in the prefrontal, cingulate and perirhinal cortex. Because of the overlap between these two systems they are often collectively referred to as the mesocorticolimbic system." .

obo:BTO_0005069 a rdfs:Class ;
  rdfs:label "Me665/2/21 cell" ;
  rdfs:comment "Human melanoma cell line." .

obo:BTO_0001295 a rdfs:Class ;
  rdfs:label "cranium" ;
  rdfs:comment "1: The skull of a vertebrate. 2: The portion of the skull enclosing the brain; the braincase." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0004609 a rdfs:Class ;
  rdfs:label "TALH cell" ;
  rdfs:comment "Cultures of rabbit immortalized thick ascending limb of Henles loop." ;
  rdfs:subClassOf obo:BTO_0004610 .

obo:BTO_0000025 a rdfs:Class ;
  rdfs:label "amniotic cavity" ;
  rdfs:comment "The space within the amnion." .

obo:BTO_0004715 a rdfs:Class ;
  rdfs:label "nasopharyngeal tonsil" ;
  rdfs:comment "The human palatine tonsils and the nasopharyngeal tonsil are lymphoepithelial tissues located in strategic areas of the oropharynx and nasopharynx." ;
  rdfs:subClassOf obo:BTO_0001387 .

obo:BTO_0000121 a rdfs:Class ;
  rdfs:label "bile" ;
  rdfs:comment "A fluid secreted by the liver and poured into the small intestine via the bile ducts. Important constituents are conjugated bile salts, cholesterol, phospholipid, bilirubin diglucuronide, and electrolytes. Bile is alkaline due to its bicarbonate content, is golden brown to greenish yellow in color, and has a bitter taste. Bile secreted by the liver is concentrated in the gallbladder." ;
  rdfs:subClassOf obo:BTO_0000346 .

obo:BTO_0005514 a rdfs:Class ;
  rdfs:label "gonadal sheath cell" ;
  rdfs:comment "In Caenorhabditis elegans, specialized contractile myoepithelial cells of the somatic gonad, the gonadal sheath cells, are closely apposed to oocytes and are required for normal meiotic maturation and ovulation." ;
  rdfs:subClassOf obo:BTO_0002309 .

obo:BTO_0001106 a rdfs:Class ;
  rdfs:label "T-cell acute lymphoblastic leukemia cell" ;
  rdfs:comment "A type of acute lymphoblastic leukaemia, ALL, a cancer of the lymphocyte-forming cells called lymphoblasts." ;
  rdfs:subClassOf obo:BTO_0000731 .

obo:BTO_0005724 a rdfs:Class ;
  rdfs:label "CG-4 cell" ;
  rdfs:comment "A permanent cell line of rat central nervous system glial precursors from primary cultures of bipotential oligodendrocyte-type 2-astrocyte (O-2A) progenitor cells. The CG-4 cells have a normal karyotype and display the properties of normal O-2A cells." ;
  rdfs:subClassOf obo:BTO_0000872 .

obo:BTO_0006140 a rdfs:Class ;
  rdfs:label "SN4741 cell" ;
  rdfs:comment "Cell line from substantia nigra dopaminergic cells derived from transgenic mouse embryos." ;
  rdfs:subClassOf obo:BTO_0004199 .

obo:BTO_0002972 a rdfs:Class ;
  rdfs:label "164T2 cell" ;
  rdfs:comment "Murine lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0005658 a rdfs:Class ;
  rdfs:label "testis steroidogenic cell" ;
  rdfs:comment "A steroidogenic cell is involved in the formation of steroids, as by the adrenal cortex, testes, and ovaries." .

obo:BTO_0006331 a rdfs:Class ;
  rdfs:label "strobila" ;
  rdfs:comment "The sum of the proglottids is called a strobila, which is thin and resembles a strip of tape." .

obo:BTO_0000592 a rdfs:Class ;
  rdfs:label "adrenal gland cancer cell" ;
  rdfs:comment "Adrenal gland cancers are rare cancers occuring in the endocrine tissue of the adrenals. They are characterized by overproduction of adrenal gland hormones." .

obo:BTO_0004679 a rdfs:Class ;
  rdfs:label "capillary pericyte" ;
  rdfs:comment "A cell with several slender processes that embraces the capillary wall in amphibia." ;
  rdfs:subClassOf obo:BTO_0002441 .

obo:BTO_0000998 a rdfs:Class ;
  rdfs:label "paraveinal mesophyll" ;
  rdfs:comment "Layer of cells at phloem between spongy and palisade parenchyma. Protein builds up in this layer." ;
  rdfs:subClassOf obo:BTO_0000858 .

obo:BTO_0000749 a rdfs:Class ;
  rdfs:label "sporozoan form" ;
  rdfs:comment "Any of a large class (Sporozoa) of strictly parasitic protozoans that have a complicated life cycle usually involving both asexual and sexual generations often in different hosts and include important pathogens (as malaria parasites and babesias)." ;
  rdfs:subClassOf obo:BTO_0002503 .

obo:BTO_0003936 a rdfs:Class ;
  rdfs:label "laryngeal squamous cell carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0001289 , obo:BTO_0001625 .

obo:BTO_0001978 a rdfs:Class ;
  rdfs:label "anal canal" ;
  rdfs:comment "The terminal portion of the alimentary canal, extending from the rectum to the anus." .

obo:BTO_0000161 a rdfs:Class ;
  rdfs:label "lung fibroblast cell line" ;
  rdfs:subClassOf obo:BTO_0000353 , obo:BTO_0000453 .

obo:BTO_0003022 a rdfs:Class ;
  rdfs:label "NCI-H69 cell" ;
  rdfs:comment "Human Caucasian lung small cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0003737 a rdfs:Class ;
  rdfs:label "tailbud stage" ;
  rdfs:comment "The embryonic stage when neurulation is completed and tail formation begins, visible by an emerging tail primordium." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0003908 a rdfs:Class ;
  rdfs:label "HUC-1 cell" ;
  rdfs:comment "Human uroepithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003907 .

obo:BTO_0002282 a rdfs:Class ;
  rdfs:label "Pt-K2 cell" ;
  rdfs:comment "Potorous tridactylis (potoroo) normal kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0004915 a rdfs:Class ;
  rdfs:label "ZR-75-30 cell" ;
  rdfs:comment "Human mammary gland ductal carcinoma cell line; derived from malignant ascites fluid from a 47-year-old premenopausal Black woman with infiltrating ductal carcinoma." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0001710 a rdfs:Class ;
  rdfs:label "corpora quadrigemina" ;
  rdfs:comment "Two pairs of colliculi on the dorsal surface of the midbrain composed of white matter externally and gray matter within, the superior pair containing correlation centers for optic reflexes and the inferior pair containing correlation centers for auditory reflexes." .

obo:BTO_0005243 a rdfs:Class ;
  rdfs:label "NCI-H1650 cell" ;
  rdfs:comment "Human lung bronchoalveolar carcinoma cell line, tumor stage 3B, derived from pleural effusion." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0002683 a rdfs:Class ;
  rdfs:label "superior vena cava" ;
  rdfs:comment "The venous trunk draining blood from the head, neck, upper extremities, and chest; it begins by union of the two brachiocephalic veins, passes directly downward, and empties into the right atrium of the heart." ;
  rdfs:subClassOf obo:BTO_0001438 .

obo:BTO_0006396 a rdfs:Class ;
  rdfs:label "HCE-T cell" ;
  rdfs:comment "An SV40-immortalized human corneal epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003221 .

obo:BTO_0005137 a rdfs:Class ;
  rdfs:label "RST-307 cell" ;
  rdfs:comment "RST 307 cells were generated from E14 cells by insertion of a genetrap in exon 9 of (P)RR gene, precluding full-length (P)RR synthesis." .

obo:BTO_0003831 a rdfs:Class ;
  rdfs:label "culture condition:vinyl chloride-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005164 a rdfs:Class ;
  rdfs:label "HKESC-1 cell" ;
  rdfs:comment "Cell line, established from a primary moderately-differentiated squamous cell carcinoma of the esophagus from a 47-year-old Hong Kong Chinese man." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0000278 a rdfs:Class ;
  rdfs:label "commercial preparation" ;
  rdfs:subClassOf obo:BTO_0001490 .

obo:BTO_0002541 a rdfs:Class ;
  rdfs:label "culture condition:(R)-cysteate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005483 a rdfs:Class ;
  rdfs:label "molluscan catch muscle" ;
  rdfs:comment "Muscle responsible for holding closed the two halves of the shell of bivalves." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0003814 a rdfs:Class ;
  rdfs:label "culture condition:1-butanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000701 a rdfs:Class ;
  rdfs:label "culture condition:L-tyrosine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002564 a rdfs:Class ;
  rdfs:label "OVCA-429 cell" ;
  rdfs:comment "Human epithelial ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0001451 a rdfs:Class ;
  rdfs:label "vitreous humor" ;
  rdfs:comment "The clear colorless transparent jelly that fills the eyeball posterior to the lens." .

obo:BTO_0003712 a rdfs:Class ;
  rdfs:label "WM98-1 cell" ;
  rdfs:comment "Primary human melanoma cell line; derived from a vertical growth phase primary melanoma and the patient had a recurrence of melanoma during 5-year clinical follow-up. WM98-1 is tumorigenic in nude mice." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004147 a rdfs:Class ;
  rdfs:label "lumbar spine" ;
  rdfs:comment "That portion of the spine comprising the lumbar vertebrae." .

obo:BTO_0000053 a rdfs:Class ;
  rdfs:label "albedo" ;
  rdfs:comment "The spongy white tissue on the inside of the rind of citrus fruit." .

obo:BTO_0005762 a rdfs:Class ;
  rdfs:label "colonic mucosa cell" .

obo:BTO_0004001 a rdfs:Class ;
  rdfs:label "M-9-K cell" ;
  rdfs:comment "Human mesothelioma cell line." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0002618 a rdfs:Class ;
  rdfs:label "ejaculatory duct epithelium" ;
  rdfs:comment "The ejaculatory duct epithelium is composed of cuboidal to columnar cells between or through which project the terminal parts of the ducts of the unicellular prostate glands." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003209 a rdfs:Class ;
  rdfs:label "anaplastic thyroid cancer cell line" ;
  rdfs:comment "Cells to a more primitive or undifferentiated form of thyroid cancer." ;
  rdfs:subClassOf obo:BTO_0001610 .

obo:BTO_0003676 a rdfs:Class ;
  rdfs:label "lymphoblastic leukemia cell" ;
  rdfs:comment "Lymphocytic leukemia characterized by an abnormal increase in the number of lymphoblasts." ;
  rdfs:subClassOf obo:BTO_0000744 .

obo:BTO_0005922 a rdfs:Class ;
  rdfs:label "SNU-1076 cell" ;
  rdfs:comment "Human laryngeal squamous cell carcinoma cell line; established from Korean patients." ;
  rdfs:subClassOf obo:BTO_0005921 .

obo:BTO_0001037 a rdfs:Class ;
  rdfs:label "sensory cell" ;
  rdfs:comment "1: A peripheral nerve cell, as an olfactory cell, located at a sensory receiving surface and being the primary receptor of a sensory impulse. 2: A nerve cell, as a spinal ganglion cell, transmitting sensory impulses." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0003914 a rdfs:Class ;
  rdfs:label "interstitial cell of Cajal" ;
  rdfs:comment "Pleomorphic cells having an oval nucleus and long, branching cytoplasmic processes that interlace with processes of adjacent cells, interspersed between the circular and longitudinal muscle layers of the gastrointestinal tract and in the smooth muscle of the esophagus; they are thought to act as pacemakers." ;
  rdfs:subClassOf obo:BTO_0004238 .

obo:BTO_0002770 a rdfs:Class ;
  rdfs:label "decidual cell" ;
  rdfs:comment "An enlarged, ovoid, connective tissue cell in the uterine mucous membrane that enlarges and specializes during pregnancy." .

obo:BTO_0003755 a rdfs:Class ;
  rdfs:label "STF1-169 cell" ;
  rdfs:comment "Skin fibroblast cell line deficient in TAP2, a transporter associated with antigen processing." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001280 a rdfs:Class ;
  rdfs:label "BmN4-IR cell" ;
  rdfs:comment "Silkworm, Bombyx mori, cell line derived from ovary." .

obo:BTO_0003809 a rdfs:Class ;
  rdfs:label "soil" ;
  rdfs:comment "The upper layer of earth that may be dug or plowed and in which plants grow." ;
  rdfs:subClassOf obo:BTO_0001490 .

obo:BTO_0003853 a rdfs:Class ;
  rdfs:label "B16-F1 cell" ;
  rdfs:comment "Mouse skin melanoma cell line, established from C57BL/6J mouse strain." .

obo:BTO_0001048 a rdfs:Class ;
  rdfs:label "pharyngeal muscle" ;
  rdfs:comment "The muscular coat of the pharynx, consisting of The three constrictor muscles and the stylopharyngeal, salpingopharyngeal, and palatopharyngeal muscles." ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0002080 a rdfs:Class ;
  rdfs:label "renal tubular osteomalacia cell" ;
  rdfs:comment "A cell of osteomalacia occurring as a consequence of acidosis and hypercalciuria, resulting from inability to produce an acid urine or ammonia because of deficient activity of the renal tubules." ;
  rdfs:subClassOf obo:BTO_0002076 .

obo:BTO_0001023 a rdfs:Class ;
  rdfs:label "ovary cancer cell" ;
  rdfs:comment "A malignant tumor cell of the ovary." .

obo:BTO_0004080 a rdfs:Class ;
  rdfs:label "HOP-62 cell" ;
  rdfs:comment "Non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0006241 a rdfs:Class ;
  rdfs:label "endomysium" ;
  rdfs:comment "Endomysium, meaning within the muscle, is a wispy layer of areolar connective tissue that ensheaths each individual myocyte. It contains capillaries and nerves. It overlies the sarcolemma. Endomysium is the deepest and smallest component of muscle connective tissue." .

obo:BTO_0005626 a rdfs:Class ;
  rdfs:label "osteoarticular cell" ;
  rdfs:comment "Cell pertaining to or affecting bones and joints." .

obo:BTO_0006268 a rdfs:Class ;
  rdfs:label "organum vasculosum laminae terminalis" ;
  rdfs:comment "One of the four sensory circumventricular organs of the brain." ;
  rdfs:subClassOf obo:BTO_0006267 .

obo:BTO_0002852 a rdfs:Class ;
  rdfs:label "theca externa" ;
  rdfs:comment "The outer, fibrous layer of the theca folliculi." .

obo:BTO_0002669 a rdfs:Class ;
  rdfs:label "peripheral blood stem cell" ;
  rdfs:comment "Stem cells found in the peripheral blood rather than the bone marrow; their numbers can be artificially increased by exposure to hematopoietic growth factors so that they can be extracted before myeloablative chemotherapy and later infused as an autologous bone marrow transplantation." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0002000 a rdfs:Class ;
  rdfs:label "CCP-2 cell" ;
  rdfs:comment "Tartrate-resistant acid phosphatase (TRAP) and alkaline phosphatase (ALP) double-positive cell lines (CCP-2, CCP-7, CCP-8) from hamster bone marrow." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0004254 a rdfs:Class ;
  rdfs:label "cancer stem cell" ;
  rdfs:comment "Cancer stem cells are cancer cells (found within tumors or hematological cancers) that possess characteristics associated with normal stem cells, specifically the ability to give rise to all cell types found in a particular cancer sample. CSCs are tumorigenic." .

obo:BTO_0003825 a rdfs:Class ;
  rdfs:label "neural crest cell" ;
  rdfs:comment "Neural crest cells are a temporary group of cells unique to vertebrates that arise from the embryonic ectoderm cell layer, and in turn give rise to a diverse cell lineage, including melanocytes craniofacial cartilage and bone, smooth muscle, peripheral and enteric neurons and glia." .

obo:BTO_0000615 a rdfs:Class ;
  rdfs:label "corpus callosum" ;
  rdfs:comment "The great band of commissural fibers uniting the cerebral hemispheres of higher mammals including humans." .

obo:BTO_0003849 a rdfs:Class ;
  rdfs:label "adenosquamous carcinoma cell" ;
  rdfs:comment "A type of cancer that contains two types of cells: squamous cells (thin, flat cells that line certain organs) and gland-like cells." ;
  rdfs:subClassOf obo:BTO_0001289 .

obo:BTO_0003459 a rdfs:Class ;
  rdfs:label "GC-7 cell" ;
  rdfs:comment "A cell line from African green monkey kidney." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0000013 a rdfs:Class ;
  rdfs:label "culture condition:4-chlorophenol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004489 a rdfs:Class ;
  rdfs:label "OE-21 cell" ;
  rdfs:comment "Esophageal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002817 .

obo:BTO_0002175 a rdfs:Class ;
  rdfs:label "LLC-RK1 cell" ;
  rdfs:comment "New Zealand white rabbit kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0005774 a rdfs:Class ;
  rdfs:label "IPC-298 cell" ;
  rdfs:comment "Human melanoma cell line, established from the primary tumor (right cervical) of a 64-year-old woman with cutaneous melanoma." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005272 a rdfs:Class ;
  rdfs:label "radical leaf" ;
  rdfs:comment "Radical leaves arise from the root or its crown." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0002699 a rdfs:Class ;
  rdfs:label "lateral habenular nucleus" ;
  rdfs:comment "The more dispersed of the two nerve cell groups situated deep to the habenular trigone; it receives fibers from the stria medullaris thalami and projects to the raphe nuclei, reticular formation of mesencephalon, pars compacta of substantia nigra, and hypothalamus and basal forebrain." ;
  rdfs:subClassOf obo:BTO_0003685 .

obo:BTO_0000238 a rdfs:Class ;
  rdfs:label "cerebrovascular endothelial cell" ;
  rdfs:comment "Endothelial cell of or involving the cerebrum and the blood vessels supplying it." ;
  rdfs:subClassOf obo:BTO_0001854 .

obo:BTO_0002945 a rdfs:Class ;
  rdfs:label "MRN-1 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002597 a rdfs:Class ;
  rdfs:label "NUGC-3 cell" ;
  rdfs:comment "Human gastric adenocarcinoma cell line established from a 72-year-old male." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0005842 a rdfs:Class ;
  rdfs:label "Sach's organ" ;
  rdfs:comment "The electric eel has three pairs of abdominal organs that produce electricity: the main organ, the Hunter's organ, and the Sach's organ. These organs are made of electrocytes, lined up so a current of ions can flow through them and stacked so each one adds to a potential difference. The Sach's organ is associated with electrolocation. Inside the organ are many muscle-like cells, called electrocytes. Each cell can only produce 0.15 V, though the organ can transmit a signal of nearly 10 V overall in amplitude at around 25 Hz in frequency. These signals are emitted by the main organ; the Hunter's organ can emit signals at rates of several hundred hertz." .

obo:BTO_0000734 a rdfs:Class ;
  rdfs:label "myelocyte" ;
  rdfs:comment "A bone-marrow cell: especially: a motile cell with cytoplasmic granules that gives rise to the blood granulocytes and occurs abnormally in the circulating blood (as in myelogenous leukemia)." .

obo:BTO_0003011 a rdfs:Class ;
  rdfs:label "NCI-H1334 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004666 a rdfs:Class ;
  rdfs:label "external iliac artery" ;
  rdfs:comment "The outer branch of the common iliac artery on either side of the body that passes beneath the inguinal ligament to become the femoral artery." .

obo:BTO_0005616 a rdfs:Class ;
  rdfs:label "Asp-86 cell" ;
  rdfs:comment "Cell line of Asparagus offcinalis L.." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0001300 a rdfs:Class ;
  rdfs:label "stem" ;
  rdfs:comment "The main trunk of a plant; specifically: a primary plant axis that develops buds and shoots instead of roots." .

obo:BTO_0006552 a rdfs:Class ;
  rdfs:label "SWH-80 cell" ;
  rdfs:comment "Human colorectal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0002676 a rdfs:Class ;
  rdfs:label "vertical lobe of mushroom body" ;
  rdfs:comment "The Drosophila mushroom bodies (MBs), paired brain structures composed of vertical and medial lobes, achieve their final organization at metamorphosis." .

obo:BTO_0000504 a rdfs:Class ;
  rdfs:label "pancreatic juice" ;
  rdfs:comment "The liquid secretion of the exocrine pancreas, which is discharged into the duodenum." ;
  rdfs:subClassOf obo:BTO_0000346 .

obo:BTO_0002969 a rdfs:Class ;
  rdfs:label "IR-8 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004803 a rdfs:Class ;
  rdfs:label "buccal epithelium" .

obo:BTO_0001679 a rdfs:Class ;
  rdfs:label "Th2 cell" ;
  rdfs:comment "Subset of helper-inducer T-lymphocytes which synthesize and secrete the interleukins IL-4, IL-5, IL-6, and IL-10. These cytokines influence B-cell development and antibody production as well as augmenting humoral responses." ;
  rdfs:subClassOf obo:BTO_0002417 .

obo:BTO_0006559 a rdfs:Class ;
  rdfs:label "uterine endometrial stromal cell" ;
  rdfs:subClassOf obo:BTO_0002064 .

obo:BTO_0005881 a rdfs:Class ;
  rdfs:label "Res-259 cell" ;
  rdfs:comment "Human paediatric glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0004937 a rdfs:Class ;
  rdfs:label "KOCL-33 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0003295 a rdfs:Class ;
  rdfs:label "OP-9 cell" ;
  rdfs:comment "Mouse fibroblast bone marrow stromal cell line, established from newborn op/op mouse calvaria." ;
  rdfs:subClassOf obo:BTO_0003296 .

obo:BTO_0003889 a rdfs:Class ;
  rdfs:label "JHU-019 cell" ;
  rdfs:comment "Human head and neck squamous cell carcinoma (HNSCC) cell line." .

obo:BTO_0001170 a rdfs:Class ;
  rdfs:label "resting cell" ;
  rdfs:comment "A cell that is not actively in the process of dividing." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0000432 a rdfs:Class ;
  rdfs:label "corpus cardiacum" ;
  rdfs:comment "A pair of neurohemal organs located on the walls of the aorta just behind the brain. The corpora cardiaca release their store of PTTH only after they receive a signal from neurosecretory cells in the brain." ;
  rdfs:subClassOf obo:BTO_0001803 .

obo:BTO_0005374 a rdfs:Class ;
  rdfs:label "OKF-6 cell" ;
  rdfs:comment "Normal human oral keratinocyte cell line; established from a biopsy of normal floor of the mouth." ;
  rdfs:subClassOf obo:BTO_0000375 , obo:BTO_0005375 .

obo:BTO_0000020 a rdfs:Class ;
  rdfs:label "abdomen" ;
  rdfs:comment "1: The part of the body between the thorax and the pelvis; also: the cavity of this part of the trunk containing the chief viscera. 2: The posterior section of the body behind the thorax in an arthropod." .

obo:BTO_0003039 a rdfs:Class ;
  rdfs:label "hypodermal seam cell" ;
  rdfs:comment "A group of hypodermal cells in worms that lie along the apical midline of the hypodermis, at the extreme left and right sides between nose and tail." .

obo:BTO_0002415 a rdfs:Class ;
  rdfs:label "PG-LH7 cell" ;
  rdfs:comment "Cloned PG cell subline." .

obo:BTO_0002048 a rdfs:Class ;
  rdfs:label "slug stage" ;
  rdfs:comment "The multicellular stage of the cellular slime mold Dictyostelium discoideum. Upon starvation, typically 100 000 amoebae aggregate together, migrate as a slug and form a fruiting body composed of a spore mass and a stalk." ;
  rdfs:subClassOf obo:BTO_0002007 .

obo:BTO_0004319 a rdfs:Class ;
  rdfs:label "WB-311 cell" ;
  rdfs:comment "Tumorigenic liver epithelial cell line, originally derived from the WB-F344 line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0005089 a rdfs:Class ;
  rdfs:label "perichondrium" ;
  rdfs:comment "A dense membrane composed of fibrous connective tissue that closely wraps (invests) all cartilage, except the cartilage in joints which is covered by a synovial membrane." .

obo:BTO_0000060 a rdfs:Class ;
  rdfs:label "alveolus" ;
  rdfs:comment "A tiny, thin-walled, capillary-rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place." .

obo:BTO_0002632 a rdfs:Class ;
  rdfs:label "larval cell line" .

obo:BTO_0006220 a rdfs:Class ;
  rdfs:label "UACC-812 cell" ;
  rdfs:comment "Human mammary gland ductal carcinoma cell line, established from breast tissue of a 43 years old female in 1986, removed at mastectomy to remove a ductal carcinoma (stage II, grade IV)." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002738 a rdfs:Class ;
  rdfs:label "cement gland" ;
  rdfs:comment "Typical barnacles, common name of the sedentary crustacean marine animals constituting the subclass Cirripedia, attach to the substrate by means of an exceedingly adhesive cement, produced by a cement gland, and secrete a shell, or carapace, of calcareous (limestone) plates, around themselves." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0004192 a rdfs:Class ;
  rdfs:label "perineuronal net" ;
  rdfs:comment "Perineuronal nets are fine matrices that surround all nervous tissue and presumably act in a supporting role." .

obo:BTO_0005159 a rdfs:Class ;
  rdfs:label "extraglomerular mesangial cell" ;
  rdfs:comment "One of the three cellular components of the juxtaglomerular apparatus." .

obo:BTO_0004922 a rdfs:Class ;
  rdfs:label "TAOV cell" ;
  rdfs:comment "Human ovarian carcinoma cell line, derived from serous cystadenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 , obo:BTO_0003804 , obo:BTO_0004883 .

obo:BTO_0002099 a rdfs:Class ;
  rdfs:label "middle ear" ;
  rdfs:comment "The cavity in the temporal bone comprising the cavitas tympani, adnexa mastoidea, and tuba auditiva." .

obo:BTO_0003864 a rdfs:Class ;
  rdfs:label "CMT-93 cell" ;
  rdfs:comment "Mouse rectum polyploid carcinoma cell line from a 19-months old female Mus musculus strain C57BL/icrf." ;
  rdfs:subClassOf obo:BTO_0001532 .

obo:BTO_0002857 a rdfs:Class ;
  rdfs:label "eleocyte" ;
  rdfs:comment "(Annelida) Free fatty globules, yellow or transparent, inodorous or evil-smelling, in the coelom; emitted by the dorsal pores when the worm is irritated." ;
  rdfs:subClassOf obo:BTO_0002856 .

obo:BTO_0006568 a rdfs:Class ;
  rdfs:label "Ishikawa-3H12 cell" ;
  rdfs:comment "Human endometrial adenocarcinoma cell line, expressing estrogen receptor and progesterone receptor." .

obo:BTO_0004208 a rdfs:Class ;
  rdfs:label "SB-247 cell" ;
  rdfs:comment "Human ovarian cancer cell line; derived from an ascitic fluid sample obtained from an ovarian cancer patient with stage IIIB serous adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0005402 a rdfs:Class ;
  rdfs:label "spongiotrophoblast" ;
  rdfs:comment "The junctional zone of the mouse placenta consists of two main trophoblast populations, spongiotrophoblasts and glycogen cells (GCs), but the development and function of both cell types are unknown." .

obo:BTO_0004125 a rdfs:Class ;
  rdfs:label "HTR-8/SVneo cell" ;
  rdfs:comment "Human placental trophoblast cell line, derived by transfecting the cells that grew out of chorinic villi explants of human first-trimester placenta with the gene encoding for simian virus 40 large T antigen." .

obo:BTO_0001523 a rdfs:Class ;
  rdfs:label "WIL-2 cell" ;
  rdfs:comment "Lymphoblastoid B-cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0003091 a rdfs:Class ;
  rdfs:label "urogenital system" ;
  rdfs:comment "The urinary system and genital system considered together." .

obo:BTO_0005224 a rdfs:Class ;
  rdfs:label "hFOB 1.19 cell" ;
  rdfs:comment "Human fetal osteoblast cell line." ;
  rdfs:subClassOf obo:BTO_0001242 , obo:BTO_0004324 .

obo:BTO_0003165 a rdfs:Class ;
  rdfs:label "cervical adenocarcinoma cell" ;
  rdfs:subClassOf obo:BTO_0000180 , obo:BTO_0000604 .

obo:BTO_0004954 a rdfs:Class ;
  rdfs:label "capillary endothelium" ;
  rdfs:comment "The walls of capillaries are composed of only a single layer of cells, the endothelium." ;
  rdfs:subClassOf obo:BTO_0000766 .

obo:BTO_0002156 a rdfs:Class ;
  rdfs:label "hypobranchial" ;
  rdfs:comment "One of a series of deep, paired endochondral bones on the lower part of the gill arch between the ceratobranchials and the basibranchials. May occur on arches 1, 2, 3, 4 and bear dentigerous plates. Salmonidae have only 3 pairs. In Chondrichthyes they are the most ventral paired cartilages." ;
  rdfs:subClassOf obo:BTO_0002152 .

obo:BTO_0000547 a rdfs:Class ;
  rdfs:label "gut wall" .

obo:BTO_0006505 a rdfs:Class ;
  rdfs:label "Edinger-Westphal nucleus" ;
  rdfs:comment "The parasympathetic pre-ganglionic nucleus that innervates the iris sphincter muscle and the ciliary muscle. Alternatively, the term is often used to refer to the adjacent population of non-preganglionic neurons that do not project to the ciliary ganglion, but rather project to the spinal cord, dorsal raphe nucleus, lateral septal nuclei, lateral hypothalamic area and the central nucleus of the amygdala, among other regions." .

obo:BTO_0001473 a rdfs:Class ;
  rdfs:label "blastomere" ;
  rdfs:comment "A cell produced during cleavage of a fertilized egg." .

obo:BTO_0002849 a rdfs:Class ;
  rdfs:label "luteoma cell" ;
  rdfs:comment "Luteinized granulosa-thecacell tumor, i.e., having cells resembling those of the corpus luteum." ;
  rdfs:subClassOf obo:BTO_0002848 .

obo:BTO_0002711 a rdfs:Class ;
  rdfs:label "UM-SCC-17B cell" ;
  rdfs:comment "Human larynx squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004019 .

obo:BTO_0006426 a rdfs:Class ;
  rdfs:label "BCIRL-HV-AM2 cell" ;
  rdfs:comment "Ovary cell line, derived from pupal ovaries of Heliothis virescens." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0001337 a rdfs:Class ;
  rdfs:label "extensor digitorum brevis" ;
  rdfs:comment "A muscle on the dorsum of the foot that extends the toes." ;
  rdfs:subClassOf obo:BTO_0000151 .

obo:BTO_0002569 a rdfs:Class ;
  rdfs:label "Co-403 cell" ;
  rdfs:comment "Immortalized human coronary artery smooth muscle cell line." ;
  rdfs:subClassOf obo:BTO_0002570 .

obo:BTO_0006251 a rdfs:Class ;
  rdfs:label "renal proximal tubule cell" .

obo:BTO_0004396 a rdfs:Class ;
  rdfs:label "femorotibial joint" ;
  rdfs:comment "One of the two primary bendings of a typical leg, pertains to the femur and the tibia." .

obo:BTO_0001053 a rdfs:Class ;
  rdfs:label "culture condition:phenylglyoxylate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006541 a rdfs:Class ;
  rdfs:label "NCI-H60 cell" ;
  rdfs:comment "Human small-cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0000991 a rdfs:Class ;
  rdfs:label "pancreatic islet" ;
  rdfs:comment "Irregular microscopic structures scattered throughout the pancreas and comprising its endocrine part (the endocrine pancreas). In humans, they are composed of at least four types of cells: the alpha cells, which secrete glucagon; the beta cells, which are the most abundant and secrete insulin; the delta cells, which secrete somatostatin; and the PP cells, which secrete pancreatic polypeptide. Degeneration of the beta cells, whose secretion (insulin) is important in carbohydrate metabolism, is the major cause of type I diabetes mellitus." .

obo:BTO_0002640 a rdfs:Class ;
  rdfs:label "CHO-EM9 cell" ;
  rdfs:comment "This line is a derivative of the CHO-K1 cell line. EM9 is a repair deficient mutant derived from AA8." .

obo:BTO_0002801 a rdfs:Class ;
  rdfs:label "culture condition:tributyrin-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003715 a rdfs:Class ;
  rdfs:label "VMRC-RCZ cell" ;
  rdfs:comment "Human renal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0001751 a rdfs:Class ;
  rdfs:label "mandibular ramus" ;
  rdfs:comment "A bony process extending like a branch from a larger bone, especially the ascending part of the lower jaw that makes a joint at the temple." .

obo:BTO_0002028 a rdfs:Class ;
  rdfs:label "J-96 cell" ;
  rdfs:comment "Human, Caucasian, peripheral blood, subacute leukemia cell line." .

obo:BTO_0000233 a rdfs:Class ;
  rdfs:label "cerebral cortex" ;
  rdfs:comment "The surface layer of gray matter of the cerebrum that functions chiefly in coordination of sensory and motor information." .

obo:BTO_0000584 a rdfs:Class ;
  rdfs:label "pancreatic cancer cell" ;
  rdfs:comment "Pancreatic cancer is a disease in which malignant (cancer) cells are found in the tissues of the pancreas." ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0000974 a rdfs:Class ;
  rdfs:label "culture condition:sulfite-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003224 a rdfs:Class ;
  rdfs:label "TRK-43 cell" ;
  rdfs:comment "A rabbit corneal fibroblastic cell line." ;
  rdfs:subClassOf obo:BTO_0003346 .

obo:BTO_0006190 a rdfs:Class ;
  rdfs:label "cybrid cell" ;
  rdfs:comment "A cell that has nuclear DNA from one source and cytoplasmic DNA from another, such as a nonhuman animal cell that has had its nucleus replaced by the nucleus of a human somatic cell." ;
  rdfs:subClassOf obo:BTO_0001490 .

obo:BTO_0005909 a rdfs:Class ;
  rdfs:label "JURL-MK1 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in blast crisis; established from the peripheral blood of a 73-year-old man with chronic myeloid leukemia in blast crisis in 1993; cells carry the Philadelphia chromosome; JURL-MK1 and JURL-MK2 are sister cell lines derived from the same patient." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0004712 a rdfs:Class ;
  rdfs:label "parathyroid hormone secreting cell" ;
  rdfs:comment "Parathyroid hormone is secreted from cells of the parathyroid glands and finds its major target cells in bone and kidney." .

obo:BTO_0004969 a rdfs:Class ;
  rdfs:label "KOC-5C cell" ;
  rdfs:comment "Human ovarian clear cell adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0006415 .

obo:BTO_0006342 a rdfs:Class ;
  rdfs:label "excretory gland cell" ;
  rdfs:comment "Gland cell of the secretory-excretory system, sends processes to ring, opens into excretory duct." .

obo:BTO_0000532 a rdfs:Class ;
  rdfs:label "culture condition:glycine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004437 a rdfs:Class ;
  rdfs:label "HOSE 17-1 cell" ;
  rdfs:comment "Normal human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002555 .

obo:BTO_0004502 a rdfs:Class ;
  rdfs:label "vascular cambium" ;
  rdfs:comment "Cambium that produces secondary phloem on its outer side and secondary xylem on its inner side." ;
  rdfs:subClassOf obo:BTO_0000170 .

obo:BTO_0005713 a rdfs:Class ;
  rdfs:label "Mel-CV cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001560 a rdfs:Class ;
  rdfs:label "testicular cancer cell line" ;
  rdfs:subClassOf obo:BTO_0004229 .

obo:BTO_0002860 a rdfs:Class ;
  rdfs:label "oral mucosa" ;
  rdfs:comment "The mucous coat (membrane) lining the oral cavity." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0004529 a rdfs:Class ;
  rdfs:label "PA-23 cell" ;
  rdfs:comment "Rat rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0000941 a rdfs:Class ;
  rdfs:label "CAL-33 cell" ;
  rdfs:comment "Human tongue squamous cell carcinoma established from the surgically removed fragment of a tongue lesion from a 69-year-old man with moderately differentiated squamous cell carcinoma of the tongue in 1983 (prior to therapy)." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0002376 a rdfs:Class ;
  rdfs:label "duodenal gland" ;
  rdfs:comment "Any of the compound racemose glands in the submucous layer of the duodenum that secrete alkaline mucus and a potent proteolytic enzyme." .

obo:BTO_0003947 a rdfs:Class ;
  rdfs:label "MPCT-G cell" ;
  rdfs:comment "Murine renal proximal (MPCT-G) tubular epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003577 .

obo:BTO_0006112 a rdfs:Class ;
  rdfs:label "fibro-adipogenic progenitor cell" ;
  rdfs:comment "FAPs are tissue-resident mesenchymal stromal cells (MSCs). Current literature supports a role for these cells in the homeostasis and repair of multiple tissues suggesting that FAPs may have extensive therapeutic potential in the treatment of numerous diseases." ;
  rdfs:subClassOf obo:BTO_0003298 .

obo:BTO_0006087 a rdfs:Class ;
  rdfs:label "caudolateral nidopallium" ;
  rdfs:comment "The avian Nidopallium caudolaterale is a multimodal area in the caudal telencephalon that is apparently not homologous to the mammalian prefrontal cortex but serves comparable functions." .

obo:BTO_0002495 a rdfs:Class ;
  rdfs:label "cerebral gyrus" ;
  rdfs:comment "One of the convolutions of the surface of the cerebral hemispheres caused by infolding of the cortex." .

obo:BTO_0002145 a rdfs:Class ;
  rdfs:label "midgut cell line" .

obo:BTO_0000439 a rdfs:Class ;
  rdfs:label "eye" ;
  rdfs:comment "An organ of sight; especially: a nearly spherical hollow organ that is lined with a sensitive retina, is lodged in a bony orbit in the skull, is the vertebrate organ of sight, and is normally paired." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0003290 a rdfs:Class ;
  rdfs:label "PanIN cell" ;
  rdfs:comment "Pancreatic intraepithelial neoplasia cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0002828 a rdfs:Class ;
  rdfs:label "HMEC-1 cell" ;
  rdfs:comment "Human dermal microvascular endothelial cell line 1." ;
  rdfs:subClassOf obo:BTO_0003124 .

obo:BTO_0000273 a rdfs:Class ;
  rdfs:label "ink gland" ;
  rdfs:comment "The ink gland and ink sac are specializations of the rectal gland." ;
  rdfs:subClassOf obo:BTO_0001157 .

obo:BTO_0001928 a rdfs:Class ;
  rdfs:label "AR4-2J cell" ;
  rdfs:comment "Rattus norvegicus (rat), tumor cell line of exocrine pancreas." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0005936 a rdfs:Class ;
  rdfs:label "CWR22-R1 cell" ;
  rdfs:comment "Prostate carcinoma cell line; castrate-resistant, derived from androgen-dependent CWR22-relapsed tumors." .

obo:BTO_0003535 a rdfs:Class ;
  rdfs:label "IMR-6 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0005336 a rdfs:Class ;
  rdfs:label "Ma-Mel-01 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002426 a rdfs:Class ;
  rdfs:label "CHOP cell" ;
  rdfs:comment "Chinese hamster ovary cells expressing polyoma LT antigen." .

obo:BTO_0005536 a rdfs:Class ;
  rdfs:label "culture condition:copper-containing medium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000240 a rdfs:Class ;
  rdfs:label "inferior cervical ganglion" ;
  rdfs:comment "An inconstant ganglion formed in place of the usual cervicothoracic ganglion by fusion of the lower two cervical ganglia in instances where the first thoracic ganglion remains separate." ;
  rdfs:subClassOf obo:BTO_0000113 .

obo:BTO_0002896 a rdfs:Class ;
  rdfs:label "HM-1 ES cell" ;
  rdfs:comment "Murine embryonic stem cell line." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0002942 a rdfs:Class ;
  rdfs:label "HO-1 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004830 a rdfs:Class ;
  rdfs:label "epidermal cell line" .

obo:BTO_0005019 a rdfs:Class ;
  rdfs:label "AX-2 cell" ;
  rdfs:comment "Normal Dictyostelium amoebal cell line." ;
  rdfs:subClassOf obo:BTO_0000070 .

obo:BTO_0002303 a rdfs:Class ;
  rdfs:label "superior mesenteric artery" ;
  rdfs:comment "Origin: abdominal aorta; branches, inferior pancreaticoduodenal, jejunal, ileal, ileocolic, right colic, and middle colic arteries; distribution: small intestine, proximal half of colon." ;
  rdfs:subClassOf obo:BTO_0000779 .

obo:BTO_0001343 a rdfs:Class ;
  rdfs:label "extensor digitorum communis" ;
  rdfs:comment "A muscle on the back of the forearm that extends the fingers and wrist." ;
  rdfs:subClassOf obo:BTO_0000151 .

obo:BTO_0000674 a rdfs:Class ;
  rdfs:label "BHK 165-23 cell" ;
  rdfs:comment "Baby hamster kidney cell line." ;
  rdfs:subClassOf obo:BTO_0001131 .

obo:BTO_0000223 a rdfs:Class ;
  rdfs:label "teratocarcinoma cell" ;
  rdfs:comment "A malignant tumor cell of the testis composed of teratoma and embryonal carcinoma." ;
  rdfs:subClassOf obo:BTO_0000279 .

obo:BTO_0003396 a rdfs:Class ;
  rdfs:label "pontine nucleus" ;
  rdfs:comment "The massive gray matter filling the basilar pons. The nuclei are of fairly homogeneous architecture and project to the cortex of the contralateral cerebellar hemisphere by way of the middle cerebellar peduncle. The pontine nuclei form a major way-station in the impulse conduction from the cerebral cortex of one hemisphere to the posterior lobe of the opposite cerebellum." .

obo:BTO_0002637 a rdfs:Class ;
  rdfs:label "respiratory epithelium cell line" .

obo:BTO_0001740 a rdfs:Class ;
  rdfs:label "hypopharynx" ;
  rdfs:comment "The portion of the pharynx that lies below the upper edge of the epiglottis and opens into the larynx and esophagus." .

obo:BTO_0004304 a rdfs:Class ;
  rdfs:label "cell lysate" ;
  rdfs:comment "The cellular debris and fluid produced by lysis." .

obo:BTO_0004344 a rdfs:Class ;
  rdfs:label "infralimbic cortex" ;
  rdfs:comment "A cortical region in the medial prefrontal cortex which is important in tonic inhibition of subcortical structures and emotional responses, such as fear." .

obo:BTO_0000148 a rdfs:Class ;
  rdfs:label "branch" ;
  rdfs:comment "A natural subdivision of a plant stem; especially: a secondary shoot or stem (as a bough) arising from a main axis (as of a tree)." .

obo:BTO_0005610 a rdfs:Class ;
  rdfs:label "ventricular aneurysm disease specific cell type" ;
  rdfs:comment "An aneurysm is the outward swelling, or ballooning, of a blood vessel at a weak spot in the wall of the blood vessel. In the case of ventricular aneurysm, the aneurysm occurs in the wall of the heart at the spot where the myocardial infarction occurred. A scar usually forms in the area of the dead muscle tissue, and may eventually calcify. Ventricular aneurysms generally do not rupture. The left ventricle is involved in most cases of ventricular aneurysm." .

obo:BTO_0006482 a rdfs:Class ;
  rdfs:label "SNU-719 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0005537 a rdfs:Class ;
  rdfs:label "culture condition:beta-phenylethylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005325 a rdfs:Class ;
  rdfs:label "culture condition:methanesulfonylmethane-grown cell" ;
  rdfs:comment "Methylsulfonylmethaneis an organosulfur compound with the formula (CH3)2SO2. It occurs naturally in some primitive plants, is present in small amounts in many foods and beverages, and is marketed as a dietary supplement." ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001528 a rdfs:Class ;
  rdfs:label "B-lymphoblast" ;
  rdfs:subClassOf obo:BTO_0000772 .

obo:BTO_0002552 a rdfs:Class ;
  rdfs:label "NCI-H1299 cell" ;
  rdfs:comment "Homo sapiens (human) lung carcinoma cell line, non-small cell lung cancer; derived from metastatic site: lymph node." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0001912 a rdfs:Class ;
  rdfs:label "breast adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0000356 .

obo:BTO_0000885 a rdfs:Class ;
  rdfs:label "tongue cell line" .

obo:BTO_0006123 a rdfs:Class ;
  rdfs:label "T-98 cell" ;
  rdfs:comment "T98 and T98G are two related cell lines that were derived from a human glioblastoma multiforma tumor. T98G has almost twice as many chromosomes as T98, suggesting that it is a polyploid variant of T98." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0003954 a rdfs:Class ;
  rdfs:label "dopaminergic system" ;
  rdfs:comment "The system of nerve cells that uses dopamine as its neurotransmitter." .

obo:BTO_0000402 a rdfs:Class ;
  rdfs:label "epicotyl" ;
  rdfs:comment "Portion of the shoot of an angiosperm embryo or seedling above the cotyledons." .

obo:BTO_0000363 a rdfs:Class ;
  rdfs:label "culture condition:dulcitol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004226 a rdfs:Class ;
  rdfs:label "TAMH cell" ;
  rdfs:comment "TGFalpha-transfected mouse hepatocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0003625 a rdfs:Class ;
  rdfs:label "intervertebral disc" ;
  rdfs:comment "Any of the tough elastic disks that are interposed between the centra of adjoining vertebrae and that consist of an outer fibrous ring enclosing an inner pulpy nucleus." .

obo:BTO_0000663 a rdfs:Class ;
  rdfs:label "juxtaglomerular tumor cell" ;
  rdfs:comment "A rare benign tumor cell of renal juxtaglomerular cells in young men, causing hyperreninemia." ;
  rdfs:subClassOf obo:BTO_0000680 .

obo:BTO_0000890 a rdfs:Class ;
  rdfs:label "mycelial felt" ;
  rdfs:comment "Mass of hyphae, usually in wood or bark; visible with the naked eye." ;
  rdfs:subClassOf obo:BTO_0001436 .

obo:BTO_0005198 a rdfs:Class ;
  rdfs:label "adipose-derived stem cell" ;
  rdfs:comment "Most adult stem cells are lineage-restricted (multipotent) and are generally referred to by their tissue origin e.g. adipose-derived stem cell." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0000616 a rdfs:Class ;
  rdfs:label "I-cell" ;
  rdfs:comment "An abnormal fibroblast containing a large number of dark inclusions that fill the central part of the cytoplasm except for the juxtanuclear zone; seen in mucolipidosis II." .

obo:BTO_0001682 a rdfs:Class ;
  rdfs:label "byssus" ;
  rdfs:comment "A mass of strong, silky filaments by which certain bivalve mollusks, such as mussels, attach themselves to rocks and other fixed surfaces." ;
  rdfs:subClassOf obo:BTO_0000887 , obo:BTO_0001262 .

obo:BTO_0004157 a rdfs:Class ;
  rdfs:label "Ma-34 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line; established from tissue or pleural effusion of Japanese patients with advanced NSCLC." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004243 a rdfs:Class ;
  rdfs:label "trypanosomoid cell line" .

obo:BTO_0005722 a rdfs:Class ;
  rdfs:label "retrocerebral organ" ;
  rdfs:comment "A small glandular organ, attached to the epidermis above and behind the brain, comprised of the retrocerebral sac and the subcerebral glands." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0000770 a rdfs:Class ;
  rdfs:label "oligodendroglia" ;
  rdfs:comment "Neuroglia consisting of cells similar to but smaller than astrocytes, found in the central nervous system and associated with the formation of myelin." ;
  rdfs:subClassOf obo:BTO_0000524 , obo:BTO_0002606 .

obo:BTO_0001096 a rdfs:Class ;
  rdfs:label "lymphoid cell" ;
  rdfs:comment "Any of the cells responsible for the production of immunity mediated by cells or antibodies and including lymphocytes, lymphoblasts, and plasma cells. Cells derived from stem cells of the lymphoid lineage: large and small lymphocytes, plasma cells." .

obo:BTO_0001311 a rdfs:Class ;
  rdfs:label "corpus striatum" ;
  rdfs:comment "Either of a pair of masses of nervous tissue within the brain that contain two large nuclei of gray matter separated by sheets of white matter." .

obo:BTO_0005041 a rdfs:Class ;
  rdfs:label "HT-168 cell" ;
  rdfs:comment "Human melanoma cell line." .

obo:BTO_0002581 a rdfs:Class ;
  rdfs:label "MEG-01 cell" ;
  rdfs:comment "Human chronic myeloid leukemia in megakaryocytic blast crisis established from the bone marrow of a 55-year-old man with chronic myeloid leukemia (CML) in megakaryocytic blast crisis in 1983." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0006475 a rdfs:Class ;
  rdfs:label "Sai1 cell" ;
  rdfs:comment "Neural embryonic stem cell line isolated from embryonic hindbrain, Carnegie stage 15." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0005389 a rdfs:Class ;
  rdfs:label "SUM-44PE cell" ;
  rdfs:comment "Human breast cancer cell line, derived from primary human luminal breast epithelial cells of a pleural effusion." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0005504 a rdfs:Class ;
  rdfs:label "fungal sporangium" ;
  rdfs:comment "An enclosure in which spores are formed. It can be composed of a single cell or can be multicellular. All plants, fungi, and many other lineages form sporangia at some point in their life cycle." ;
  rdfs:subClassOf obo:BTO_0001285 .

obo:BTO_0004778 a rdfs:Class ;
  rdfs:label "medium spiny neuron" ;
  rdfs:comment "A special type of inhibitory cells representing approximately 90% of the neurons within the corpus striatum of the basal ganglia. They play a key role in initiating and controlling movements of the body, limbs and eyes." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0006300 a rdfs:Class ;
  rdfs:label "hemolysate" ;
  rdfs:comment "Preparation resulting from the lysis of erythrocytes." ;
  rdfs:subClassOf obo:BTO_0004304 .

obo:BTO_0001724 a rdfs:Class ;
  rdfs:label "ependymocyte" ;
  rdfs:comment "An ependymal cell, the cells of the ependyma." .

obo:BTO_0000561 a rdfs:Class ;
  rdfs:label "posterior lobe" ;
  rdfs:comment "The portion of the cerebellum separated from the anterior lobe by the primary fissure and from the flocculonodular lobe by the dorsolateral fissure; it comprises the declive, folium vermis, tuber vermis, pyramid, uvula, simple lobule, inferior and superior semilunar lobules, and tonsils." .

obo:BTO_0000093 a rdfs:Class ;
  rdfs:label "MCF-7 cell" ;
  rdfs:comment "Human breast adenocarcinoma, established from the pleural effusion of a 69-year-old caucasian woman with metastatic mammary carcinoma (after radio- and hormone therapy) in 1970. Cells were described of being positive for cytoplasmic estrogen receptors and having the capability to form domes." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0005547 a rdfs:Class ;
  rdfs:label "para-high vocal center" ;
  rdfs:comment "The region adjacent to the HVC called the paraHVC." .

obo:BTO_0006469 a rdfs:Class ;
  rdfs:label "LP-9 cell" ;
  rdfs:comment "Normal human peritoneal mesothelial cell line." ;
  rdfs:subClassOf obo:BTO_0006468 .

obo:BTO_0001952 a rdfs:Class ;
  rdfs:label "HPB-ALL cell" ;
  rdfs:comment "Human T cell leukemia cell line; established from the peripheral blood of a 14-year-old Japanese boy with ALL and thymoma at diagnosis in 1973." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0002785 a rdfs:Class ;
  rdfs:label "rhinencephalon" ;
  rdfs:comment "The olfactory region of the brain, located in the cerebrum." .

obo:BTO_0004135 a rdfs:Class ;
  rdfs:label "IOSE-398 cell" ;
  rdfs:comment "Immortalized not tumorigenic human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004130 .

obo:BTO_0005950 a rdfs:Class ;
  rdfs:label "BT-145 cell" ;
  rdfs:comment "Primary human adult GBM line derived from a tumor resected at initial diagnosis at Brigham and Women's Hospital.." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0004024 a rdfs:Class ;
  rdfs:label "neural cord" ;
  rdfs:comment "It gives rise to the secondary neural tube by cavitation in human embryos." .

obo:BTO_0006513 a rdfs:Class ;
  rdfs:label "HEK-293-AT1 cell" ;
  rdfs:comment "HEK293 cell line stably expressing the rat AT1a angiotensin receptor." .

obo:BTO_0001074 a rdfs:Class ;
  rdfs:label "trigeminal nucleus" ;
  rdfs:comment "One of the nuclei of the trigeminal nerve, consisting of a slender column of cells in the lateral central gray matter of the superior part of the fourth ventral and cerebral aqueduct. It is the only central nervous system site of primary sensory neurons; its cells resemble posterior root ganglion cells. The peripheral processes of the cells, which form the mesencephalic tract, carry proprioceptive impulses; the central processes have widespread cerebellar and brain stem connections, including the motor nucleus of the trigeminal nerve." .

obo:BTO_0000958 a rdfs:Class ;
  rdfs:label "spermatogonium" ;
  rdfs:comment "An undifferentiated germ cell of a male, originating in a seminiferous tubule and dividing into two primary spermatocytes." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0001314 a rdfs:Class ;
  rdfs:label "subcutis" ;
  rdfs:comment "The deeper part of the dermis." .

obo:BTO_0002839 a rdfs:Class ;
  rdfs:label "P12-ICHIKAWA cell" ;
  rdfs:comment "Human T cell leukemia; established from the peripheral blood of a 7-year-old boy with acute lymphoblastic leukemia (ALL)." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0003959 a rdfs:Class ;
  rdfs:label "NHOK cell" ;
  rdfs:comment "Normal human oral keratinocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000375 .

obo:BTO_0001091 a rdfs:Class ;
  rdfs:label "axenic culture" ;
  rdfs:comment "A situation in which only one species is present. Thus an axenic culture is uncontaminated by organisms of other species, an axenic organism does not have commensal organisms in the gut etc. Some organisms have obligate symbionts and cannot be grown axenically." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0005025 a rdfs:Class ;
  rdfs:label "HEK-293-TrkB cell" ;
  rdfs:comment "HEK-TrkB cells are derived from HEK-293 cells, engineered to express the brain-derived neurotrophic factor receptor, TrkB." .

obo:BTO_0004311 a rdfs:Class ;
  rdfs:label "4T1 cell" ;
  rdfs:comment "Mouse breast adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001912 .

obo:BTO_0004672 a rdfs:Class ;
  rdfs:label "hair shaft" ;
  rdfs:comment "The non-growing portion of a hair which protrudes from the skin, i.e., from the follicle." .

obo:BTO_0002546 a rdfs:Class ;
  rdfs:label "KBM-5 cell" ;
  rdfs:comment "Leukemic cell line derived from a patient in the blastic phase of chronic myelogenous leukemia." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0005493 a rdfs:Class ;
  rdfs:label "Mv1Lu cell" ;
  rdfs:comment "Mink fetal lung cell line, derived from trypsinised lungs of several foetuses of Aleutian mink." ;
  rdfs:subClassOf obo:BTO_0000353 .

obo:BTO_0005609 a rdfs:Class ;
  rdfs:label "pupal wing cuticle" .

obo:BTO_0006400 a rdfs:Class ;
  rdfs:label "HPMEC cell" ;
  rdfs:comment "Primary human pulmonary microvascular endothelial cells isolated from the lung from a single donor." ;
  rdfs:subClassOf obo:BTO_0005738 .

obo:BTO_0004943 a rdfs:Class ;
  rdfs:label "KOPN-41 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0000589 a rdfs:Class ;
  rdfs:label "primary meristem" ;
  rdfs:comment "Meristem (as procambium) derived from the apical meristem." .

obo:BTO_0004520 a rdfs:Class ;
  rdfs:label "regulatory T-lymphocyte" ;
  rdfs:comment "Regulatory T cells are a specialized subpopulation of T cells that act to suppress activation of the immune system and thereby maintain immune system homeostasis and tolerance to self-antigens." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0005030 a rdfs:Class ;
  rdfs:label "HeLa-229 cell" ;
  rdfs:comment "Human epitheloid cervix carcinoma cell line from a black female." .

obo:BTO_0001719 a rdfs:Class ;
  rdfs:label "claw" ;
  rdfs:comment "1. A sharp, curved, horny structure at the end of a toe of a mammal, reptile, or bird. 2. A chela or similar pincerlike structure on the end of a limb of a crustacean or other arthropod. 3. A limb terminating in such a structure." ;
  rdfs:subClassOf obo:BTO_0001492 .

obo:BTO_0000637 a rdfs:Class ;
  rdfs:label "interphotoreceptor matrix" ;
  rdfs:comment "The interphotoreceptor matrix is a mucopolysaccharide matrix surrounding the outer segments of the photoreceptors. This contributes to the adhesion of the retina to the retinal pigment epithelium (RPE)." .

obo:BTO_0001433 a rdfs:Class ;
  rdfs:label "mononuclear phagocyte" ;
  rdfs:comment "Any cell of the monocyte-macrophage lineage, including macrophages, monocytes, and their precursors in the monocytic series." ;
  rdfs:subClassOf obo:BTO_0000878 , obo:BTO_0001044 , obo:BTO_0001441 .

obo:BTO_0002298 a rdfs:Class ;
  rdfs:label "inferior olivary complex" ;
  rdfs:comment "A folded band of gray matter that encloses a white core (hilum nuclei olivaris inferioris) and that produces the elevation called the oliva on the medulla oblongata. It is a nuclear complex that receives heavy projections from the spinal cord, mesencephalon, and cerebral cortex and projects fibers via the contralateral inferior cerebellar peduncle, mostly to the neocerebellum, with a few going to the vermis." .

obo:BTO_0001838 a rdfs:Class ;
  rdfs:label "tooth bud" ;
  rdfs:comment "A knoblike tooth primordium developing into an enamel organ surrounded by a dental sac and encasing the dental papilla." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0000997 a rdfs:Class ;
  rdfs:label "parathyroid gland" ;
  rdfs:comment "Any of usually four small endocrine glands that are adjacent to or embedded in the thyroid gland and produce parathyroid hormone." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0001085 a rdfs:Class ;
  rdfs:label "vascular system" ;
  rdfs:comment "The vessels of the body, especially the blood vessels." .

obo:BTO_0002727 a rdfs:Class ;
  rdfs:label "BCBL-1 cell" ;
  rdfs:comment "EBV negative PEL cell line." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0003702 a rdfs:Class ;
  rdfs:label "rheumatoid arthritis disease specific synovial tissue" ;
  rdfs:comment "Chronic inflammatory disease in which there is destruction of joints. Considered by some to be an autoimmune disorder in which immune complexes are formed in joints and excite an inflammatory response (complex mediated hypersensitivity). Cell-mediated (type IV) hypersensitivity also occurs and macrophages accumulate. This in turn leads to the destruction of the synovial lining." .

obo:BTO_0006472 a rdfs:Class ;
  rdfs:label "GM01617 cell" ;
  rdfs:comment "Human fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0001444 a rdfs:Class ;
  rdfs:label "Vero cell" ;
  rdfs:comment "The Vero cell line was initiated from the kidney of a normal adult African green monkey on March 27, 1962, by Y. Yasumura and Y. Kawakita at the Chiba University in Chiba, Japan." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0001080 a rdfs:Class ;
  rdfs:label "Morris hepatoma cell" ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006307 a rdfs:Class ;
  rdfs:label "SW-780 cell" ;
  rdfs:comment "Urinary bladder transitional cell carcinoma cell line; established in 1974 from a grade I transitional cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0002094 a rdfs:Class ;
  rdfs:label "ganglioneurofibroma cell" ;
  rdfs:comment "A ganglioneuroma outside of the central nervous system." ;
  rdfs:subClassOf obo:BTO_0002093 .

obo:BTO_0003276 a rdfs:Class ;
  rdfs:label "EHEB cell" ;
  rdfs:comment "Human chronic B cell leukemia cell line;established from the peripheral blood of a 69-year-old woman with B-CLL (chronic lymphocytic leukemia) prior treatment by EBV-transformation in 1988; cell line may represent rather a B-lymphoblastoid cell line than a bona fide B-CLL cell line." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0001628 a rdfs:Class ;
  rdfs:label "epiglottis" ;
  rdfs:comment "Thin leaf-shaped cartilage, covered with mucous membrane, at the root of the tongue, which folds back over the entrance to the larynx, covering it, during the act of swallowing." ;
  rdfs:subClassOf obo:BTO_0000206 .

obo:BTO_0001012 a rdfs:Class ;
  rdfs:label "pedal ganglion" ;
  rdfs:comment "The pedal ganglia mainly are necessary for coordination of locomotion of a snail." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0005070 a rdfs:Class ;
  rdfs:label "Me665/2/60 cell" ;
  rdfs:comment "Human melanoma cell line." .

obo:BTO_0004531 a rdfs:Class ;
  rdfs:label "bolting stage" ;
  rdfs:comment "To flower or produce seeds prematurely or develop a flowering stem from a rosette." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0001989 a rdfs:Class ;
  rdfs:label "culture condition:long-chain fatty acid-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003669 a rdfs:Class ;
  rdfs:label "keloid" ;
  rdfs:comment "A tough heaped-up scar that rises quite abruptly above the rest of the skin. It is irregularly shaped and tends to enlarge progressively. Keloids arise when there is too much collagen formed in the dermis during the repair of connective tissue." .

obo:BTO_0003603 a rdfs:Class ;
  rdfs:label "respiratory mucus" .

obo:BTO_0003411 a rdfs:Class ;
  rdfs:label "nucleus isthmo-opticus" .

obo:BTO_0005533 a rdfs:Class ;
  rdfs:label "fungal primordium" ;
  rdfs:comment "A mushroom develops from a nodule, or pinhead, less than two millimeters in diameter, called a primordium, which is typically found on or near the surface of the substrate. It is formed within the mycelium, the mass of threadlike hyphae that make up the fungus. The primordium enlarges into a roundish structure of interwoven hyphae roughly resembling an egg, called a button." .

obo:BTO_0000541 a rdfs:Class ;
  rdfs:label "prostate gland dorsolateral lobe" .

obo:BTO_0002350 a rdfs:Class ;
  rdfs:label "digitus secundus pedis" ;
  rdfs:comment "The second digit of the foot." ;
  rdfs:subClassOf obo:BTO_0002348 .

obo:BTO_0005735 a rdfs:Class ;
  rdfs:label "culture condition:rye flour-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004322 a rdfs:Class ;
  rdfs:label "2BNneo cell" ;
  rdfs:comment "A SV40-transformed but not immortalized derivative of the 2BN cell line." .

obo:BTO_0005342 a rdfs:Class ;
  rdfs:label "Ma-Mel-19 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000652 a rdfs:Class ;
  rdfs:label "culture condition:mannuronate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000193 a rdfs:Class ;
  rdfs:label "rectal cancer cell" ;
  rdfs:comment "Cancer cell of the rectum." .

obo:BTO_0002007 a rdfs:Class ;
  rdfs:label "aggregation stage" ;
  rdfs:comment "During development of the cellular slime mold Dictyostelium discoideum, amoebae exhibit different types of cell-cell interactions. At the aggregation stage, certain cells begin to secrete cAMP and neighboring cells respond by undergoing chemotactic migration toward the source of CAMP. Meanwhile, cells acquire new antigenic determinants on the surface and become more cohesive." ;
  rdfs:subClassOf obo:BTO_0000284 , obo:BTO_0002261 .

obo:BTO_0000773 a rdfs:Class ;
  rdfs:label "lymphoblastoid cell line" ;
  rdfs:comment "Human cell line from tissue infected with Epstein-Barr virus, resembling a lymphoblast." .

obo:BTO_0001286 a rdfs:Class ;
  rdfs:label "skin cancer cell" ;
  rdfs:comment "The two most common forms of skin cancer are basal cell carcinoma and squamous cell carcinoma. Together, these two are also referred to as nonmelanoma skin cancer. Melanoma is generally the most serious form of skin cancer because it tends to spread (metastasize) throughout the body quickly." .

obo:BTO_0000424 a rdfs:Class ;
  rdfs:label "erythrocyte" ;
  rdfs:comment "Any of the hemoglobin-containing cells that carry oxygen to the tissues and are responsible for the red color of vertebrate blood." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0003134 a rdfs:Class ;
  rdfs:label "culture condition:quinate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005655 a rdfs:Class ;
  rdfs:label "Th17 cell" ;
  rdfs:comment "A subset of T helper cells producing interleukin 17. They are developmentally distinct from Th1 and Th2 cells. They create inflammation and tissue injury in autoimmune disease such as multiple sclerosis (which was previously thought to be caused by Th1 cells), psoriasis, autoimmune uveitis, juvenile diabetes, rheumatoid arthritis, and Crohns disease." ;
  rdfs:subClassOf obo:BTO_0002417 .

obo:BTO_0005468 a rdfs:Class ;
  rdfs:label "labial palp" ;
  rdfs:comment "In carnivorous snails the lateral lips of the mouth form lobes called labial palps, which help to locate prey. The mouth itself frequently is prolonged into a proboscis that extends well in front of the tentacles." .

obo:BTO_0002871 a rdfs:Class ;
  rdfs:label "embryonic brain cell line" ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0001934 a rdfs:Class ;
  rdfs:label "BL-60 cell" ;
  rdfs:comment "Malignant Burkitt lymphoma cell line BL 60." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0003919 a rdfs:Class ;
  rdfs:label "KB-CH[R]-8-5 cell" ;
  rdfs:comment "Human cervix carcinoma cell line resistant to colchicine; a multidrug-resistant (mdr) subclone derived from KB-3-1." .

obo:BTO_0004294 a rdfs:Class ;
  rdfs:label "heart endothelial cell" ;
  rdfs:comment "The endothelium, the layer of flat cells lining the closed spaces of the body such as the heart." ;
  rdfs:subClassOf obo:BTO_0001176 .

obo:BTO_0001873 a rdfs:Class ;
  rdfs:label "lens epithelium" ;
  rdfs:comment "Cuboidal epithelium covering the lens." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003089 a rdfs:Class ;
  rdfs:label "promontorium tympani" ;
  rdfs:comment "Promontory of tympanic cavity: the prominence on the medial wall of the tympanic cavity, formed by the first turn of the cochlea." .

obo:BTO_0001153 a rdfs:Class ;
  rdfs:label "radular muscle" ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0002481 a rdfs:Class ;
  rdfs:label "lateral tuberal nucleus" ;
  rdfs:comment "Nerve cell nuclei situated ventrally in the intermediate hypothalamic region, mainly in the lateral hypothalamic area." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0001754 a rdfs:Class ;
  rdfs:label "cheek" ;
  rdfs:comment "The fleshy part of either side of the face below the eye and between the nose and ear." .

obo:BTO_0001105 a rdfs:Class ;
  rdfs:label "insular cortex" ;
  rdfs:comment "The insula is a portion of the cerebral cortex that is not visible until the margins of the lateral sulcus are opened up, or, as in this case, removed. The insular cortex is roughly triangular. Originally part of the superficial cortex, in higher mammals it became submerged beneath the expanding cortex around it, thereby remaining relatively close to the basal ganglia of the hemisphere. Complete submergence of the insular cortex is a feature of the human brain and is not found even in other primates." .

obo:BTO_0000746 a rdfs:Class ;
  rdfs:label "preadipocyte cell line" ;
  rdfs:subClassOf obo:BTO_0003452 .

obo:BTO_0004204 a rdfs:Class ;
  rdfs:label "nasal squamous cell carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002024 .

obo:BTO_0002957 a rdfs:Class ;
  rdfs:label "DM6 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005063 a rdfs:Class ;
  rdfs:label "UACC-647 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003214 a rdfs:Class ;
  rdfs:label "HPL1D cell" ;
  rdfs:comment "Nontransformed cell line from human peripheral lung epithelium." ;
  rdfs:subClassOf obo:BTO_0003213 .

obo:BTO_0001325 a rdfs:Class ;
  rdfs:label "superior cervical ganglion" ;
  rdfs:comment "The uppermost ganglion on the sympathetic trunk, lying behind the internal carotid artery and in front of the second and third cervical vertebrae; it gives rise to postganglionic fibers to the heart via cervical cardiac nerves, to the pharyngeal plexus and thence to the larynx and pharynx, and to the head via the external and internal carotid plexuses." ;
  rdfs:subClassOf obo:BTO_0000113 .

obo:BTO_0001489 a rdfs:Class ;
  rdfs:label "whole body" ;
  rdfs:comment "The main part of an animal body especially as distinguished from limbs and head." ;
  rdfs:subClassOf obo:BTO_0000042 .

obo:BTO_0006180 a rdfs:Class ;
  rdfs:label "endocardial heart tube" ;
  rdfs:comment "The two endothelial tubes that meet in the midthoracic region of the embryo and fuse to form the primordial cardiac or heart tube, the primordium of the heart." .

obo:BTO_0005869 a rdfs:Class ;
  rdfs:label "miracidium" ;
  rdfs:comment "The free-swimming ciliated first larva of a digenetic trematode that seeks out and penetrates a suitable snail intermediate host in which it develops into a sporocyst." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0006037 a rdfs:Class ;
  rdfs:label "L-Wnt-3A cell" ;
  rdfs:comment "Mouse areolar and adipose subcutaneous connective tissue cell line; established by transfection of L-M(TK-) cells with a Wnt-3A expression vector and selection or stable clones with G418." ;
  rdfs:subClassOf obo:BTO_0006036 .

obo:BTO_0001811 a rdfs:Class ;
  rdfs:label "seminiferous epithelium" ;
  rdfs:comment "Specialised epithelium lining the seminiferous tubules containing developing and mature spermatozoa and sertoli cells." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0004129 a rdfs:Class ;
  rdfs:label "ovary epithelium cell line" ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0001502 a rdfs:Class ;
  rdfs:label "hip joint" ;
  rdfs:comment "The articulation between the femur and the innominate bone." .

obo:BTO_0003834 a rdfs:Class ;
  rdfs:label "conceptus" ;
  rdfs:comment "A fertilized egg, embryo, or fetus." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0000385 a rdfs:Class ;
  rdfs:label "bone cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000374 .

obo:BTO_0002014 a rdfs:Class ;
  rdfs:label "B16-F10 cell" ;
  rdfs:comment "Mouse skin melanoma cell line from mouse strain C57BL/6." .

obo:BTO_0001650 a rdfs:Class ;
  rdfs:label "longissimus cervicis" ;
  rdfs:comment "A slender muscle medial to the longissimus thoracis that arises by long thin tendons from the transverse processes of the upper four or five thoracic vertebrae, is inserted by similar tendons into the transverse processes of the second to sixth cervical vertebrae, and extends the spinal column and bends it to one side." .

obo:BTO_0000915 a rdfs:Class ;
  rdfs:label "nauplius" ;
  rdfs:comment "A crustacean larva in usually the first stage after leaving the egg and with three pairs of appendages, a median eye, and little or no segmentation." ;
  rdfs:subClassOf obo:BTO_0000707 .

obo:BTO_0006067 a rdfs:Class ;
  rdfs:label "culture condition:2-methylpropene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001275 a rdfs:Class ;
  rdfs:label "spermatocyte" ;
  rdfs:comment "A cell giving rise to sperm cells; especially: a cell that is derived from a spermatogonium and ultimately gives rise to four haploid spermatids." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0003920 a rdfs:Class ;
  rdfs:label "Kc-167 cell" ;
  rdfs:comment "Drosophila melanogaster embryonic cell line." ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0000039 a rdfs:Class ;
  rdfs:label "root cap" ;
  rdfs:comment "A thimble-shaped group of cells found at the tip of roots; it functions to protect the meristem." .

obo:BTO_0005132 a rdfs:Class ;
  rdfs:label "arrector pili muscle" ;
  rdfs:comment "Small, smooth muscle attached to the bulb of the hair which causes erection of the hair and compression of the attending sebaceous gland when it contracts." ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0001176 a rdfs:Class ;
  rdfs:label "endothelial cell" ;
  rdfs:comment "The main type of cell found in the inside lining of blood vessels, lymph vessels, and the heart." .

obo:BTO_0006026 a rdfs:Class ;
  rdfs:label "HCC-94 cell" ;
  rdfs:comment "Human cervical carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001967 .

obo:BTO_0003287 a rdfs:Class ;
  rdfs:label "NK-92 cell" ;
  rdfs:comment "Human natural killer lymphoma cell line; established from the peripheral blood of a 50-year-old man with non-Hodgkin lymphoma (large granular lymphocytic) in 1992; cells were described as having azurophilic granula and strong cytotoxic NK activity." ;
  rdfs:subClassOf obo:BTO_0002030 , obo:BTO_0002904 .

obo:BTO_0002101 a rdfs:Class ;
  rdfs:label "multiple myeloma cell" ;
  rdfs:comment "A malignant proliferation of plasma cells in bone marrow causing numerous tumors and characterized by the presence of abnormal proteins in the blood." ;
  rdfs:subClassOf obo:BTO_0000898 .

obo:BTO_0004160 a rdfs:Class ;
  rdfs:label "Ma-1 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002049 a rdfs:Class ;
  rdfs:label "Chang cell" ;
  rdfs:comment "Human normal hepatic cell line with epithelial-like morphology. Originally established from liver, HeLa-contaminated." .

obo:BTO_0001438 a rdfs:Class ;
  rdfs:label "vena cava" ;
  rdfs:comment "Any of the large veins by which in air-breathing vertebrates the blood is returned to the right atrium of the heart." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0002293 a rdfs:Class ;
  rdfs:label "SAKRTLS 12.1 cell" ;
  rdfs:comment "Mouse T-lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0001939 a rdfs:Class ;
  rdfs:label "MCF-10A cell" ;
  rdfs:comment "Human mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0002796 a rdfs:Class ;
  rdfs:label "culture condition:glutamate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003810 a rdfs:Class ;
  rdfs:label "enrichment culture" ;
  rdfs:comment "An enrichment culture is a medium with specific and known qualities that favors the growth of a particular microorganism. The enrichment cultures environment will support the growth of a selected microorganism, while inhibiting the growth of others." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0003496 a rdfs:Class ;
  rdfs:label "MDNEC cell" ;
  rdfs:comment "Moderately differentiated neuroendocrine carcinoma (MDNEC)." ;
  rdfs:subClassOf obo:BTO_0001407 .

obo:BTO_0006537 a rdfs:Class ;
  rdfs:label "GSC11 cell" ;
  rdfs:comment "Human glioblastoma stem cell line, derived from human primary glioblastoma tissues." ;
  rdfs:subClassOf obo:BTO_0006001 .

obo:BTO_0001534 a rdfs:Class ;
  rdfs:label "SW-948 cell" ;
  rdfs:comment "Human colon adenocarcinoma, established from the colon tumor of a 81-year-old Caucasian woman with colon adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0004471 a rdfs:Class ;
  rdfs:label "Mahlavu cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000118 a rdfs:Class ;
  rdfs:label "culture condition:benzoylformate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004352 a rdfs:Class ;
  rdfs:label "pulvinar" ;
  rdfs:comment "Large mass of nuclei forming the most caudal portion of the thalamus and overhanging the geniculate bodies and the dorsolateral surface of the midbrain. It is divided into four parts: the lateral, medial, inferior, and oral pulvinar nuclei." .

obo:BTO_0003733 a rdfs:Class ;
  rdfs:label "TUHR-16TKB cell" ;
  rdfs:comment "Human renal cell carcinoma (RCC) cell line, obtained by primary culturing of a clear cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0006412 a rdfs:Class ;
  rdfs:label "myeolomonocytic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0006072 a rdfs:Class ;
  rdfs:label "tongue epithelial cell line" ;
  rdfs:comment "Tongue epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0000885 .

obo:BTO_0003875 a rdfs:Class ;
  rdfs:label "FTC-236 cell" ;
  rdfs:comment "Human thyroid cancer neck lymph node metastasis cell line." ;
  rdfs:subClassOf obo:BTO_0001610 .

obo:BTO_0006437 a rdfs:Class ;
  rdfs:label "OC-316 cell" ;
  rdfs:comment "Three human cancer cell lines (OC 314, OC 315, and OC 316) were newly established in permanent culture from the ascites of patients with serous adenocarcinoma of the ovary. OC 316 was collected from a patient with pleural metastasis at diagnosis, resistant to different chemotherapeutic treatments including Taxol." ;
  rdfs:subClassOf obo:BTO_0003804 .

obo:BTO_0003556 a rdfs:Class ;
  rdfs:label "SN-56 cell" ;
  rdfs:comment "Murine septal cholinergic neuronal cell line." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0005604 a rdfs:Class ;
  rdfs:label "pharate pupal cuticle" .

obo:BTO_0006012 a rdfs:Class ;
  rdfs:label "13-9B cell" ;
  rdfs:comment "Non-tumorigenic subline of SUNE-1 cell line." .

obo:BTO_0003056 a rdfs:Class ;
  rdfs:label "NB-2 cell" ;
  rdfs:comment "Gout and co-workers (1980) established a permanent cell line (Nb2) of a pre-T rat lymphoma, derived from a transplantable tumor which arose in the lymph node of a male rat of the Noble strain treated with estrogen." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0005392 a rdfs:Class ;
  rdfs:label "SUM-229 cell" ;
  rdfs:comment "Human breast cancer cell line." .

obo:BTO_0006358 a rdfs:Class ;
  rdfs:label "TIG-1 cell" ;
  rdfs:comment "Normal human lung fibroblast cell line; established from lung tissue of a 5 month gestational age fetus from a therapeutic abortion." ;
  rdfs:subClassOf obo:BTO_0000161 , obo:BTO_0001242 , obo:BTO_0001958 .

obo:BTO_0005669 a rdfs:Class ;
  rdfs:label "NCI-H295A cell" ;
  rdfs:comment "NCI-H295A cells are an adherent subline of human adrenocortical carcinoma NCI-H295 cells that express all adrenal steroidogenic enzymes in a physiologically appropriate, hormonal responsive fashion." .

obo:BTO_0003095 a rdfs:Class ;
  rdfs:label "normoblast" ;
  rdfs:comment "A nucleated red blood cell, the immediate precursor of a normal red blood cell in humans." ;
  rdfs:subClassOf obo:BTO_0001441 .

obo:BTO_0004879 a rdfs:Class ;
  rdfs:label "Tu-132 cell" ;
  rdfs:comment "Human malignant glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0002643 a rdfs:Class ;
  rdfs:label "cortical collecting duct" ;
  rdfs:comment "The cortical collecting ducts receive filtrate from multiple initial collecting tubules and descend into the renal medulla to form medullary collecting ducts." .

obo:BTO_0003614 a rdfs:Class ;
  rdfs:label "oral squamous cell carcinoma cell" ;
  rdfs:subClassOf obo:BTO_0001289 .

obo:BTO_0001164 a rdfs:Class ;
  rdfs:label "megakaryoblast" ;
  rdfs:comment "The earliest cytologically identifiable precursor in the thrombocytic series, a large cell that matures to form a promegakaryocyte." .

obo:BTO_0003575 a rdfs:Class ;
  rdfs:label "HK-2 cell" ;
  rdfs:comment "An immortalized proximal tubule epithelial cell line from normal adult human kidney." ;
  rdfs:subClassOf obo:BTO_0003577 .

obo:BTO_0006274 a rdfs:Class ;
  rdfs:label "EM-E6E7TERT-3 cell" ;
  rdfs:comment "Immortalized endometrial glandular cells with normal structural and functional characteristics." ;
  rdfs:subClassOf obo:BTO_0006271 .

obo:BTO_0005853 a rdfs:Class ;
  rdfs:label "SCCOHT-1 cell" ;
  rdfs:comment "Small cell ovarian carcinoma of the hypercalcemic type, SCCOHT, represents an aggressive tumor with poor prognosis predominantly affecting young women." ;
  rdfs:subClassOf obo:BTO_0005852 .

obo:BTO_0003863 a rdfs:Class ;
  rdfs:label "CCF-STTG1 cell" ;
  rdfs:comment "Human brain grade IV astrocytoma cell line; established from a 68-years-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0000101 .

obo:BTO_0005864 a rdfs:Class ;
  rdfs:label "culture condition:N-acetyl-DL-phenylalanine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004751 a rdfs:Class ;
  rdfs:label "1C9 cell" ;
  rdfs:comment "Lexicon ES cell line 1C9 from parental mouse strain 129/SvEvBrd." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0003175 a rdfs:Class ;
  rdfs:label "inner plexiform layer" ;
  rdfs:comment "The layer of the retina composed of the processes of bipolar cells, ganglion cells, and amacrine cells; a layer containing synaptic contacts." .

obo:BTO_0004998 a rdfs:Class ;
  rdfs:label "gingival epithelium" ;
  rdfs:comment "A stratified squamous epithelium consisting of a basal layer; it is keratinized or parakeratinized." .

obo:BTO_0004013 a rdfs:Class ;
  rdfs:label "Colon-26 cell" ;
  rdfs:comment "Poorly differentiated murine colon adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0004792 a rdfs:Class ;
  rdfs:label "RHEK-1 cell" ;
  rdfs:comment "The human epidermal keratinocyte line, designated RHEK-1, was used at passage 23 for these transformation studies. This cell line was established from primary foreskin epidermal keratinocytes after infection with the Adl2-SV40 hybrid virus." ;
  rdfs:subClassOf obo:BTO_0002245 , obo:BTO_0005481 .

obo:BTO_0000994 a rdfs:Class ;
  rdfs:label "RBL-1 cell" ;
  rdfs:comment "Rat basophilic leukemia; this rat basophilic leukemia (RBL) cell line was established from chlorethylamine-treated rats." ;
  rdfs:subClassOf obo:BTO_0001018 .

obo:BTO_0004972 a rdfs:Class ;
  rdfs:label "KM-H2 cell" ;
  rdfs:comment "Human Hodgkin lymphoma cell line, established from the pleural effusion of a 37-year-old man with Hodgkin lymphoma (mixed cellularity progressing to lymphocyte depletion; stage IV at relapse) in 1974." ;
  rdfs:subClassOf obo:BTO_0004973 .

obo:BTO_0006139 a rdfs:Class ;
  rdfs:label "NPC-TW03 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0005901 a rdfs:Class ;
  rdfs:label "byssus retractor muscle" ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0002823 a rdfs:Class ;
  rdfs:label "SK-PC-1 cell" ;
  rdfs:comment "Pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0000137 a rdfs:Class ;
  rdfs:label "pulmonary artery endothelium" ;
  rdfs:subClassOf obo:BTO_0000393 .

obo:BTO_0000875 a rdfs:Class ;
  rdfs:label "N20.1 cell" ;
  rdfs:comment "Oligodendrocytic cell line." ;
  rdfs:subClassOf obo:BTO_0000872 .

obo:BTO_0004632 a rdfs:Class ;
  rdfs:label "glomerular endothelial cell" .

obo:BTO_0004406 a rdfs:Class ;
  rdfs:label "CABA I cell" ;
  rdfs:comment "Human ovarian cancer cell line; established from ascitic fluid obtained from a patient with papillary adenocarcinoma of the ovary prior to drug treatment." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0002168 a rdfs:Class ;
  rdfs:label "juvenile" ;
  rdfs:comment "Physiologically immature or undeveloped stage." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0002253 a rdfs:Class ;
  rdfs:label "GOTO cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003984 a rdfs:Class ;
  rdfs:label "A-375P cell" ;
  rdfs:comment "Human melanoma cell line." .

obo:BTO_0003687 a rdfs:Class ;
  rdfs:label "serous cell" ;
  rdfs:comment "A cell, especially of the salivary gland, that secretes a watery or thin albuminous fluid, as opposed to a mucous cell." .

obo:BTO_0001691 a rdfs:Class ;
  rdfs:label "spiral organ" ;
  rdfs:comment "The organ, resting on the basilar membrane in the cochlear duct, that contains the special sensory receptors for hearing; it consists of neuroepithelial hair cells and several types of supporting cells, including the inner and outer pillar cells, inner and outer phalangeal cells, border cells, and Hensen's cells." .

obo:BTO_0002447 a rdfs:Class ;
  rdfs:label "substantia innominata" ;
  rdfs:comment "Nerve tissue immediately inferior to the anterior perforated substance, and anterior to the globus pallidus and ansa lenticularis." .

obo:BTO_0002622 a rdfs:Class ;
  rdfs:label "spinal muscle of head" ;
  rdfs:comment "Origin: spines of upper thoracic and lower cervical vertebrae; insertion: occipital bone; innervation: spinal nerves; action, extends head." ;
  rdfs:subClassOf obo:BTO_0002621 .

obo:BTO_0000691 a rdfs:Class ;
  rdfs:label "culture condition:L-fucose-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0005792 a rdfs:Class ;
  rdfs:label "primary enamel knot" ;
  rdfs:comment "The primary enamel knot forms at the tip of the bud during the cap stage of tooth development. This primary enamel knot is removed by apoptosis." ;
  rdfs:subClassOf obo:BTO_0005791 .

obo:BTO_0005131 a rdfs:Class ;
  rdfs:label "conjunctival epithelium" .

obo:BTO_0004829 a rdfs:Class ;
  rdfs:label "HOB-c cell" ;
  rdfs:comment "Normal human hipbone osteoblast cell line." ;
  rdfs:subClassOf obo:BTO_0004324 .

obo:BTO_0004078 a rdfs:Class ;
  rdfs:label "non-small cell lung adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002777 a rdfs:Class ;
  rdfs:label "anterolateral sulcus of medulla oblongata" ;
  rdfs:comment "A longitudinal sulcus on the anterior surface of the medulla oblongata, lateral to the pyramid, from which emerge the fibers of the hypoglossal nerve." .

obo:BTO_0005171 a rdfs:Class ;
  rdfs:label "SNU-620 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0002571 a rdfs:Class ;
  rdfs:label "Caco-2/TC7 cell" ;
  rdfs:comment "Caco-2/TC7 cell line was established from the parental human enterocyte-like Caco-2 cell line." .

obo:BTO_0005418 a rdfs:Class ;
  rdfs:label "plant oil gland" ;
  rdfs:comment "A gland or a cavity lined with cells that secrete oils." ;
  rdfs:subClassOf obo:BTO_0005528 .

obo:BTO_0004614 a rdfs:Class ;
  rdfs:label "NOSE1 cell" ;
  rdfs:comment "Normal human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004482 .

obo:BTO_0004846 a rdfs:Class ;
  rdfs:label "OCUT-1 cell" ;
  rdfs:comment "Anaplastic thyroid cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0003277 a rdfs:Class ;
  rdfs:label "H2.35 cell" ;
  rdfs:comment "Mouse epithelial-like hepatoma cell line derived from a primary hepatocyte culture from the livers of 6 week old female BALB/c mice." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006195 a rdfs:Class ;
  rdfs:label "EC-18 cell" ;
  rdfs:comment "Chinese oesophaeal squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0002335 a rdfs:Class ;
  rdfs:label "ARPE-19 cell" ;
  rdfs:comment "ARPE-19 is a spontaneously arising retinal pigment epithelia (RPE) cell line derived in 1986 by Amy Aotaki-Keen from the normal eyes of a 19-year-old male who died from head trauma in a motor vehicle accident." ;
  rdfs:subClassOf obo:BTO_0002334 .

obo:BTO_0006448 a rdfs:Class ;
  rdfs:label "F-180 cell" ;
  rdfs:comment "Human normal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0005920 a rdfs:Class ;
  rdfs:label "laryngeal cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000955 .

obo:BTO_0006365 a rdfs:Class ;
  rdfs:label "diffuse large B-cell lymphoma cell line" ;
  rdfs:comment "Diffuse large B-cell lymphoma is a common type of non-Hodgkin lymphoma (NHL) accounting for about 2 in 5 of all cases. It is a cancer of the B-lymphocytes. Diffuse B-cell lymphoma can occur at any time between adolescence and old age. It is slightly more common in men than in women." .

obo:BTO_0005519 a rdfs:Class ;
  rdfs:label "spermathecal-uterine valve" ;
  rdfs:comment "A single syncytium cell of four nuclei makes a valve, connecting spermatheca and uterus of hermaphrodite gonad. After oocyte fertilization the newly formed embryo passes from the spermatheca to the uterus via a connecting valve called the spermatheca-uterus valve." ;
  rdfs:subClassOf obo:BTO_0003099 .

obo:BTO_0001581 a rdfs:Class ;
  rdfs:label "embryonic stem cell line" ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0001714 a rdfs:Class ;
  rdfs:label "duodenal adenocarcinoma cell" ;
  rdfs:comment "Malignant neoplasms of the duodenum account for only 0.3-0.4% of tumors of the gastrointestinal tract. 25-45% of malignant neoplasms within the small bowel occur within the duodenum. Duodenal adenocarcinomas are usually located in the periampullary and intraampullary regions; they very rarely involve the duodenal bulb. There is an association of duodenal adenocarcinoma with Gardner's syndrome, Peutz-Jegher's syndrome, celiac disease, and Crohn's disease." ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0000457 a rdfs:Class ;
  rdfs:label "CHO-K1 cell" ;
  rdfs:comment "Chinese hamster ovary cells, subclone from parental CHO cell line that was initiated from an ovary biopsy of an adult Chinese hamster in 1957." .

obo:BTO_0001613 a rdfs:Class ;
  rdfs:label "colorectum" ;
  rdfs:comment "The colon and rectum considered as a unit." .

obo:BTO_0000165 a rdfs:Class ;
  rdfs:label "C2C12 cell" ;
  rdfs:comment "This is a subclone of the mouse myoblast cell line. The C2C12 cell line differentiates rapidly, forming contractile myotubes and producing characteristic muscle proteins. Treatment with bone morphogenic protein 2 (BMP-2) cause a shift in the differentiation pathway from myoblastic to osteoblastic." ;
  rdfs:subClassOf obo:BTO_0000256 .

obo:BTO_0005160 a rdfs:Class ;
  rdfs:label "oil gland" ;
  rdfs:comment "A gland, such as a sebaceous gland, that secretes an oily substance." ;
  rdfs:subClassOf obo:BTO_0001980 .

obo:BTO_0005116 a rdfs:Class ;
  rdfs:label "salivary duct cancer cell" ;
  rdfs:subClassOf obo:BTO_0002773 .

obo:BTO_0004391 a rdfs:Class ;
  rdfs:label "SPAML/SV7 cell" ;
  rdfs:comment "SPAML/SV7 cells were established from human renal angiomyolipoma cells by immortalization with SV40 large T antigen. Angiomyolipomas are the major tumor in the autosomal dominant disorder tuberous sclerosis." ;
  rdfs:subClassOf obo:BTO_0004389 .

obo:BTO_0005824 a rdfs:Class ;
  rdfs:label "vestibular hair cell" ;
  rdfs:comment "Vestibular hair cells are in the sensory epithelium of the maculae and cristae of the membranous labyrinth of the internal ear." .

obo:BTO_0006184 a rdfs:Class ;
  rdfs:label "mouth floor" ;
  rdfs:comment "That area of the oral cavity beneath the tongue." .

obo:BTO_0002812 a rdfs:Class ;
  rdfs:label "final leaf" ;
  rdfs:comment "The last leaf to emerge in a determinate plant, also referred to as the flag leaf in cereal crops." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0003026 a rdfs:Class ;
  rdfs:label "NCI-H82 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0006104 a rdfs:Class ;
  rdfs:label "proliferating skeletal muscle satellite cell" ;
  rdfs:subClassOf obo:BTO_0005787 .

obo:BTO_0004287 a rdfs:Class ;
  rdfs:label "culture condition:peptone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004219 a rdfs:Class ;
  rdfs:label "submandibular gland cell line" ;
  rdfs:subClassOf obo:BTO_0003205 .

obo:BTO_0001142 a rdfs:Class ;
  rdfs:label "pulp" ;
  rdfs:comment "The soft, succulent part of a fruit usually composed of mesocarp." .

obo:BTO_0000334 a rdfs:Class ;
  rdfs:label "decidua parietalis" ;
  rdfs:comment "The part of the decidua in the pregnant human female lining the uterus." .

obo:BTO_0000099 a rdfs:Class ;
  rdfs:label "astrocyte" ;
  rdfs:comment "A star-shaped cell, especially a neuroglial cell of nervous tissue." ;
  rdfs:subClassOf obo:BTO_0000771 .

obo:BTO_0002560 a rdfs:Class ;
  rdfs:label "OVCA-2 cell" ;
  rdfs:comment "Human ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0001601 a rdfs:Class ;
  rdfs:label "epicuticle" ;
  rdfs:comment "An outermost waxy layer of the insect exoskeleton." .

obo:BTO_0006223 a rdfs:Class ;
  rdfs:label "neural ectoderm" ;
  rdfs:comment "The part of the embryonic ectoderm that develops into the neural tube." ;
  rdfs:subClassOf obo:BTO_0000315 .

obo:BTO_0003567 a rdfs:Class ;
  rdfs:label "C-3842 cell" ;
  rdfs:comment "The permanent human cell line C3842 was established from a secondary chondrosarcoma in a typical case of Olliers disease." ;
  rdfs:subClassOf obo:BTO_0001574 .

obo:BTO_0003835 a rdfs:Class ;
  rdfs:label "cerebellar nucleus" ;
  rdfs:comment "Four accumulations of gray substance embedded in the white substance of the cerebellum, comprising the nucleus dentatus, nucleus emboliformis, nucleus globosus, and nucleus fastigii." .

obo:BTO_0001974 a rdfs:Class ;
  rdfs:label "HPEC cell" ;
  rdfs:comment "Vascular endothelial cell line from human placenta." ;
  rdfs:subClassOf obo:BTO_0001973 , obo:BTO_0001975 .

obo:BTO_0000446 a rdfs:Class ;
  rdfs:label "FDCP-Mix cl.A4 cell" ;
  rdfs:comment "Mouse bone marrow cell line, established from the long-term bone marrow cultures of BDF1 mice; cells are mIL-3-dependent (FDCP means factor dependent cell-Paterson after the Paterson Institute, Manchester, UK); it is described that cells can be maintained in a primitive state or induced to differentiate." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0006094 a rdfs:Class ;
  rdfs:label "female inflorescence" ;
  rdfs:subClassOf obo:BTO_0000628 .

obo:BTO_0000756 a rdfs:Class ;
  rdfs:label "pituitary gland tumor cell line" ;
  rdfs:subClassOf obo:BTO_0000427 .

obo:BTO_0006387 a rdfs:Class ;
  rdfs:label "craniofacial bone" .

obo:BTO_0005885 a rdfs:Class ;
  rdfs:label "scolopale cell" ;
  rdfs:comment "A scolopidium is a composition of three cells, a scolopale cap cell which caps the scolopale cell, and a bipolar sensory nerve cell. Scolopidia are sensitive to things like sound (vibrations of the air) or substrate vibrations (feeling vibrations on a leaf, for instance) depending on the structure of the overall sense organ in which they reside." .

obo:BTO_0005197 a rdfs:Class ;
  rdfs:label "peltate gland" ;
  rdfs:comment "The monoterpene fraction of the lemon-scented sweet basil (Ocimum basilicum) cv Sweet Dani consists mostly of citral (a mixture of geranial and neral), with lower levels of geraniol and nerol. These compounds are stored in the peltate glands found on the leaf epidermis. Younger leaves, which have a higher density of such glands, also have a higher content of monoterpenes than older leaves." .

obo:BTO_0002123 a rdfs:Class ;
  rdfs:label "primitive endoderm" ;
  rdfs:comment "The primitive endoderm is the lower layer of the blastocyst that gives rise to fetal membranes." .

obo:BTO_0001382 a rdfs:Class ;
  rdfs:label "tibialis anterior" ;
  rdfs:comment "A muscle arising chiefly from the lateral condyle and part of the shaft of the tibia, inserting by a long tendon into the first cuneiform and first metatarsal bones, and acting to flex the foot dorsally and to invert it." ;
  rdfs:subClassOf obo:BTO_0000864 .

obo:BTO_0001917 a rdfs:Class ;
  rdfs:label "LIM2412 cell" ;
  rdfs:comment "Colonic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0004143 a rdfs:Class ;
  rdfs:label "Lovo-175X2 cell" ;
  rdfs:comment "Colorectal cancer cell line." .

obo:BTO_0004370 a rdfs:Class ;
  rdfs:label "lateral vestibular nucleus" ;
  rdfs:comment "The one of the four vestibular nuclei on each side of the medulla oblongata that is situated on the inner side of the inferior cerebellar peduncle beneath the floor of the fourth ventricle and that sends fibers down the same side of the spinal cord through the vestibulospinal tract." ;
  rdfs:subClassOf obo:BTO_0004368 .

obo:BTO_0002469 a rdfs:Class ;
  rdfs:label "ventral intermediate nucleus of thalamus" ;
  rdfs:comment "A nucleus medially located within the ventral nuclei of the thalamus." ;
  rdfs:subClassOf obo:BTO_0002467 .

obo:BTO_0006048 a rdfs:Class ;
  rdfs:label "PH5CH-8 cell" ;
  rdfs:comment "Clone of PH5CH cell displaying more efficient hepatitis C virus replication." .

obo:BTO_0003192 a rdfs:Class ;
  rdfs:label "renal cancer cell line" .

obo:BTO_0006292 a rdfs:Class ;
  rdfs:label "Aag-2 cell" ;
  rdfs:comment "Aedes aegypti derived clonal mosquito cell line; derived from a neonate mosquito embryo." ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0003672 a rdfs:Class ;
  rdfs:label "interdigitating reticulum cell" ;
  rdfs:comment "An antigen-presenting cell in the paracortex of lymph nodes, interacting with T lymphocytes." .

obo:BTO_0003038 a rdfs:Class ;
  rdfs:label "HEC-1-B cell" ;
  rdfs:comment "This is a substrain of HEC-1-A." .

obo:BTO_0001057 a rdfs:Class ;
  rdfs:label "neural tube" ;
  rdfs:comment "A dorsal tubular structure in the vertebrate embryo formed by longitudinal folding of the neural plate and differentiating into the brain and spinal cord." .

obo:BTO_0001617 a rdfs:Class ;
  rdfs:label "DHL-9 cell" ;
  rdfs:comment "Human histiocytic lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0000876 a rdfs:Class ;
  rdfs:label "monocyte" ;
  rdfs:comment "A mononuclear phagocytic leukocyte, 13 to 25 mm in diameter, with an ovoid or kidney-shaped nucleus, containing lacy, linear chromatin and abundant gray-blue cytoplasm filled with fine reddish and azurophilic granules. Formed in the bone marrow from promonocytes, monocytes are transported to tissues such as the lung and liver, where they develop into macrophages." ;
  rdfs:subClassOf obo:BTO_0000751 , obo:BTO_0001433 .

obo:BTO_0006173 a rdfs:Class ;
  rdfs:label "trichilium" ;
  rdfs:comment "Trichome-covered tissue. Typically, the ventral petiole base of Cecropia leaves has a hairy mat, the trichilia, that produces glycogen-rich Muellerian bodies." .

obo:BTO_0005429 a rdfs:Class ;
  rdfs:label "PLHC-1/dox cell" ;
  rdfs:comment "A doxorubicin (DOX) resistant PLHC-1 subclone." .

obo:BTO_0005712 a rdfs:Class ;
  rdfs:label "Mel-AT cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004901 a rdfs:Class ;
  rdfs:label "non-neuronal cell" ;
  rdfs:comment "Cell pertaining to or composed of nonconducting cells of the nervous system, e.g. neuroglial cells." .

obo:BTO_0004196 a rdfs:Class ;
  rdfs:label "placental membrane" ;
  rdfs:comment "The membrane separating the fetal from the maternal blood in the placenta; sometimes inappropriately called the placental barrier." .

obo:BTO_0005916 a rdfs:Class ;
  rdfs:label "NOMO-1 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established from the bone marrow of a 31-year-old woman with acute myeloid leukemia at 2nd relapse." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0000781 a rdfs:Class ;
  rdfs:label "intestinal epithelium" ;
  rdfs:comment "The endodermally-derived epithelium of the intestine varies considerably, but the absorptive epithelium of small intestine is usually implied." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000550 a rdfs:Class ;
  rdfs:label "anal plate" ;
  rdfs:comment "1. One of the posterior plates of the plastron of a turtle. 2. The large scale in front of the anus of most snakes. 3. The fused plate of early embryonic ectoderm and endoderm through which the anus later ruptures." ;
  rdfs:subClassOf obo:BTO_0000315 , obo:BTO_0000800 .

obo:BTO_0003112 a rdfs:Class ;
  rdfs:label "INBL cell" ;
  rdfs:comment "HPV18 positive human uterine cervix carcinoma cell line; established from stage IVA squamous cell cervical carcinoma explants from Mexican female at the National University of Mexico." ;
  rdfs:subClassOf obo:BTO_0001967 .

obo:BTO_0002893 a rdfs:Class ;
  rdfs:label "HB1.F3 cell" ;
  rdfs:comment "Human neural stem cell line." ;
  rdfs:subClassOf obo:BTO_0002891 .

obo:BTO_0001675 a rdfs:Class ;
  rdfs:label "Mel Wei cell" ;
  rdfs:comment "Melanoma cell line derived from a primary tumor." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002822 a rdfs:Class ;
  rdfs:label "NCI-HUT 125 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." .

obo:BTO_0001990 a rdfs:Class ;
  rdfs:label "culture condition:oleate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005370 a rdfs:Class ;
  rdfs:label "CCRF-HSB-2 cell" ;
  rdfs:comment "Human acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0002492 a rdfs:Class ;
  rdfs:label "vestimentum" ;
  rdfs:comment "The vestimentum is a muscle that the tubeworm uses to position itself in the tube. It is sequestered within the Riftia tube." ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0002231 a rdfs:Class ;
  rdfs:label "culture condition:porcine gastric mucin-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002152 a rdfs:Class ;
  rdfs:label "gill arch" ;
  rdfs:comment "The endochondral skeletal support of the gill which bears the gill filaments and the gill rakers. Consists of pharyngobranchials, epibranchials, ceratobranchials and hypobranchials. Usually 4 in teleosts, can be as many as 16 in some Cyclostomata." ;
  rdfs:subClassOf obo:BTO_0002157 .

obo:BTO_0002941 a rdfs:Class ;
  rdfs:label "Colo-38 cell" ;
  rdfs:comment "Human melanoma cell line." .

obo:BTO_0006008 a rdfs:Class ;
  rdfs:label "choroid plexus epithelium" ;
  rdfs:comment "The choroid plexus epithelium has functions as a barrier at the interface between the blood and cerebrospinal fluid (CSF) highly differentiated." .

obo:BTO_0001556 a rdfs:Class ;
  rdfs:label "Rcho-1 cell" ;
  rdfs:comment "A trophoblast cell line derived from a rat choriocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001575 .

obo:BTO_0004934 a rdfs:Class ;
  rdfs:label "NALM-20 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0000905 a rdfs:Class ;
  rdfs:label "culture condition:myoinositol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000143 a rdfs:Class ;
  rdfs:label "substantia nigra" ;
  rdfs:comment "The substantia nigra is located in the mesencephalon (mid brain) region of the brain. It is part of the basal ganglia." .

obo:BTO_0001131 a rdfs:Class ;
  rdfs:label "BHK cell" ;
  rdfs:comment "Baby hamster kidney cell line." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0005770 a rdfs:Class ;
  rdfs:label "buccal mucosa cancer cell line" .

obo:BTO_0000611 a rdfs:Class ;
  rdfs:label "culture condition:hydroxyproline-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0000074 a rdfs:Class ;
  rdfs:label "antenna" ;
  rdfs:comment "One of a pair of slender movable segmented sensory organs on the head of insects, myriapods, and crustaceans." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0000234 a rdfs:Class ;
  rdfs:label "vein" ;
  rdfs:comment "Any of the tubular branching vessels that carry blood from the capillaries toward the heart." ;
  rdfs:subClassOf obo:BTO_0001102 .

obo:BTO_0001747 a rdfs:Class ;
  rdfs:label "palpus" ;
  rdfs:comment "A segmented usually tactile or gustatory process on an arthropod mouthpart." .

obo:BTO_0005926 a rdfs:Class ;
  rdfs:label "SNU-585 cell" ;
  rdfs:comment "Human laryngeal squamous cell carcinoma cell line; established from Korean patients." ;
  rdfs:subClassOf obo:BTO_0005921 .

obo:BTO_0003469 a rdfs:Class ;
  rdfs:label "HKE-3 cell" ;
  rdfs:comment "Clonal derivative from HCT116 colorectal carcinoma cell line, that lacks the mutant k-ras allele." .

obo:BTO_0004501 a rdfs:Class ;
  rdfs:label "plant vascular cell" ;
  rdfs:comment "Plant vascular cells originate from procambial cells, which are vascular stem cells." ;
  rdfs:subClassOf obo:BTO_0001432 .

obo:BTO_0005937 a rdfs:Class ;
  rdfs:label "intestinal epithelial cell" .

obo:BTO_0000323 a rdfs:Class ;
  rdfs:label "culture condition:D-mandelate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000115 a rdfs:Class ;
  rdfs:label "BC3H1 cell" ;
  rdfs:comment "Mouse brain tumor cell line. Established from a mouse tumor induced by nitrosoethylurea with properties characteristic of muscle; cells were described to synthesize adenylate and creatine phosphokinases." ;
  rdfs:subClassOf obo:BTO_0000690 .

obo:BTO_0003759 a rdfs:Class ;
  rdfs:label "SNUOT-Rb1 cell" ;
  rdfs:comment "The cell line was established from an eye with retinoblastoma, which was enucleated from a 3-year-old Korean child." ;
  rdfs:subClassOf obo:BTO_0002919 .

obo:BTO_0000172 a rdfs:Class ;
  rdfs:label "pileus" ;
  rdfs:comment "The convex, concave, or flattened spore-bearing structure of some basidiomycetes that is attached superiorly to the stem and typically is expanded with gills or pores on the underside." .

obo:BTO_0005977 a rdfs:Class ;
  rdfs:label "NCI-H2029 cell" ;
  rdfs:comment "Human small cell lung cancer cell line; established in September 1988 from a stage E carcinoma of a 69 years old caucasian female after chemotherapy and radiation." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0003636 a rdfs:Class ;
  rdfs:label "brain microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0003123 , obo:BTO_0005201 .

obo:BTO_0002990 a rdfs:Class ;
  rdfs:label "gastric ulcer" ;
  rdfs:comment "A peptic ulcer of the gastric mucosa." .

obo:BTO_0003821 a rdfs:Class ;
  rdfs:label "culture condition:glycerol/acetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002283 a rdfs:Class ;
  rdfs:label "NCI-H157 cell" ;
  rdfs:comment "Human large cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002205 .

obo:BTO_0001646 a rdfs:Class ;
  rdfs:label "ureteric bud" ;
  rdfs:comment "An outgrowth of the mesonephric duct that gives rise to all but the nephrons of the permanent kidney." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0006376 a rdfs:Class ;
  rdfs:label "769-P cell" ;
  rdfs:comment "Renal cell adenocarcinoma cell line, established from a 63 years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0004828 a rdfs:Class ;
  rdfs:label "HGC-27 cell" ;
  rdfs:comment "This human gastric carcinoma cell line was established by culture of the metastatic lymph node from a gastric cancer patient diagnosed histological as undifferentiated carcinoma." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0003845 a rdfs:Class ;
  rdfs:label "A2780/CP70 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line that is resistant to cisplatin." .

obo:BTO_0002039 a rdfs:Class ;
  rdfs:label "KMST-6 cell" ;
  rdfs:comment "Human embryonic fibroblast cell line; established from a 9-weeks-old embryo of Homo sapiens. Normal fibroblasts immortalized by 60Co irradiation; indefinite growth, non-tumorigenic." .

obo:BTO_0000604 a rdfs:Class ;
  rdfs:label "adenocarcinoma cell" ;
  rdfs:comment "A cell of a cancer that begins in cells that line certain internal organs and that have glandular (secretory) properties." ;
  rdfs:subClassOf obo:BTO_0000176 .

obo:BTO_0003235 a rdfs:Class ;
  rdfs:label "gall bladder cell line" .

obo:BTO_0002709 a rdfs:Class ;
  rdfs:label "head and neck squamous cell carcinoma cell line" ;
  rdfs:comment "Head and neck squamous cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0002024 .

obo:BTO_0004092 a rdfs:Class ;
  rdfs:label "endogenous progenitor cell" ;
  rdfs:comment "Circulating endogenous progenitor cells are isolated from human peripheral blood and are capable of vascular repair." ;
  rdfs:subClassOf obo:BTO_0003494 .

obo:BTO_0001456 a rdfs:Class ;
  rdfs:label "white adipose tissue" ;
  rdfs:comment "The adipose tissue comprising the bulk of the body fat." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0003015 a rdfs:Class ;
  rdfs:label "macula lutea" ;
  rdfs:comment "An irregular yellowish depression on the retina, about 3 degrees wide, lateral to and slightly below the optic disk; it is the site of absorption of short wavelengths of light, and it is thought that its variation in size, shape, and coloring may be related to variant types of color vision." .

obo:BTO_0000517 a rdfs:Class ;
  rdfs:label "culture condition:5-methylcytosine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001186 a rdfs:Class ;
  rdfs:label "receptacle" ;
  rdfs:comment "The end of the flower stalk upon which the floral organs are borne." .

obo:BTO_0004445 a rdfs:Class ;
  rdfs:label "IB3-1 cell" ;
  rdfs:comment "Immortalized cell line created in 1992 from a primary culture of bronchial epithelial cells isolated from a patient with cystic fibrosis." ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0005165 a rdfs:Class ;
  rdfs:label "HKESC-2 cell" ;
  rdfs:comment "Human esophageal cancer cell line, established from a moderately differentiated ESCC of a 46-year-old Chinese woman from Hong Kong." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0006285 a rdfs:Class ;
  rdfs:label "SPC-A4 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0002213 a rdfs:Class ;
  rdfs:label "A-1207 cell" ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004918 a rdfs:Class ;
  rdfs:label "ZR-82 cell" ;
  rdfs:comment "ZR-82 is a peroxisome-deficient mutant cell line obtained from ethyl methanesulfonate-treated stocks of CHO-K1." .

obo:BTO_0000886 a rdfs:Class ;
  rdfs:label "mucosa" ;
  rdfs:comment "A membrane lining all body passages that communicate with the air, such as the respiratory and alimentary tracts, and having cells and associated glands that secrete mucus." ;
  rdfs:subClassOf obo:BTO_0000634 .

obo:BTO_0000316 a rdfs:Class ;
  rdfs:label "culture medium" ;
  rdfs:comment "A substance, either solid or liquid, used for the cultivation, isolation, identification, or storage of microorganisms." .

obo:BTO_0005893 a rdfs:Class ;
  rdfs:label "nonpigmented ciliary epithelium" ;
  rdfs:comment "The ciliary epithelium is composed of two layers juxtaposed, the proximal pigmented epithelium and the distal nonpigmented epithelium." .

obo:BTO_0004497 a rdfs:Class ;
  rdfs:label "WT-51 cell" ;
  rdfs:comment "Human B-lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0001527 a rdfs:Class ;
  rdfs:label "PAP-HT25 cell" ;
  rdfs:comment "Rabbit renal medulla cell line." ;
  rdfs:subClassOf obo:BTO_0001526 .

obo:BTO_0001996 a rdfs:Class ;
  rdfs:label "endometrial cell line" .

obo:BTO_0000543 a rdfs:Class ;
  rdfs:label "ground meristem" ;
  rdfs:comment "The part of a primary apical meristem remaining after differentiation of protoderm and procambium." .

obo:BTO_0001890 a rdfs:Class ;
  rdfs:label "RKO cell" ;
  rdfs:comment "Human colon carcinoma cell line. RKO is a poorly differentiated colon carcinoma cell line developed by Michael Brattain. The RKO cell line is the parental cell line (isogenic) of RKO-E6 and RKO-A545-1." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0005544 a rdfs:Class ;
  rdfs:label "gastrointestinal adenocarcinoma cell" ;
  rdfs:subClassOf obo:BTO_0000604 , obo:BTO_0001533 .

obo:BTO_0003903 a rdfs:Class ;
  rdfs:label "HIG-82 cell" ;
  rdfs:comment "Oryctolagus cuniculus synoviocyte cell line derived from the intrarticular soft tissue from the knee joint of a 6-months-old female rabbit." ;
  rdfs:subClassOf obo:BTO_0003436 .

obo:BTO_0006524 a rdfs:Class ;
  rdfs:label "NCI-H1522 cell" ;
  rdfs:comment "Human small cell lung cancer cell line. Stage E cancer." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0000132 a rdfs:Class ;
  rdfs:label "blood platelet" ;
  rdfs:comment "A minute, nonnucleated, disklike cytoplasmic body found in the blood plasma of mammals that is derived from a megakaryocyte and functions to promote blood clotting." .

obo:BTO_0003694 a rdfs:Class ;
  rdfs:label "CNS cell line" .

obo:BTO_0000158 a rdfs:Class ;
  rdfs:label "plant bud" ;
  rdfs:comment "A small lateral or terminal protuberance on the stem of a plant that may develop into a flower, leaf, or shoot." .

obo:BTO_0005142 a rdfs:Class ;
  rdfs:label "ameloblastic layer" ;
  rdfs:comment "The inner layer of cells of the enamel organ, which forms the enamel prisms of the teeth." .

obo:BTO_0000024 a rdfs:Class ;
  rdfs:label "abomasum" ;
  rdfs:comment "The fourth compartment of the ruminant stomach that follows the omasum and has a true digestive function." ;
  rdfs:subClassOf obo:BTO_0001307 .

obo:BTO_0000368 a rdfs:Class ;
  rdfs:label "ear" ;
  rdfs:comment "The organ of hearing." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0002044 a rdfs:Class ;
  rdfs:label "frond tip" ;
  rdfs:comment "The outer end of the frond." .

obo:BTO_0004860 a rdfs:Class ;
  rdfs:label "GaMG cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005666 a rdfs:Class ;
  rdfs:label "Caco-2/AQ cell" ;
  rdfs:comment "A differentiated human colon cancer cell line." .

obo:BTO_0002141 a rdfs:Class ;
  rdfs:label "BCS-TC2 cell" ;
  rdfs:comment "Human colon adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0004084 a rdfs:Class ;
  rdfs:label "epitrochlearis muscle" ;
  rdfs:comment "Rat foreleg skeletal muscle." ;
  rdfs:subClassOf obo:BTO_0000722 .

obo:BTO_0002734 a rdfs:Class ;
  rdfs:label "16-HBE14o cell" ;
  rdfs:comment "Human bronchial epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0005752 a rdfs:Class ;
  rdfs:label "CHO-13-5-1 cell" ;
  rdfs:comment "LDL receptor-related protein 1-deficient mutant CHO cell line." .

obo:BTO_0005182 a rdfs:Class ;
  rdfs:label "TOV-112D cell" ;
  rdfs:comment "This cell line was initiated in October of 1992 from a patient with early onset ovarian cancer. The patient was of French-Canadian descent with an unknown family history of ovarian cancer." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004434 a rdfs:Class ;
  rdfs:label "HMEC-1330 cell" ;
  rdfs:comment "Human normal mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0002192 a rdfs:Class ;
  rdfs:label "SCC12b cell" ;
  rdfs:comment "Squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000375 , obo:BTO_0002024 .

obo:BTO_0004748 a rdfs:Class ;
  rdfs:label "metula" ;
  rdfs:comment "A sterile cell below the phialides of some Aspergillus and Penicillium species." .

obo:BTO_0005746 a rdfs:Class ;
  rdfs:label "gynostemium" ;
  rdfs:comment "The column formed by the union of androecium and gynoecium, as in an orchid." .

obo:BTO_0002665 a rdfs:Class ;
  rdfs:label "B-50 cell" ;
  rdfs:comment "A rat neuronal cell line." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0005306 a rdfs:Class ;
  rdfs:label "culture condition:wine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003541 a rdfs:Class ;
  rdfs:label "OE-33 cell" ;
  rdfs:comment "Human caucasian oesophageal carcinoma cell line, established from the adenocarcinoma of the lower oesophagus (Barrett's metaplasia) of a 73 year old female patient. The tumour was identified as pathological stage IIA (UICC) and showed poor differentiation." ;
  rdfs:subClassOf obo:BTO_0002817 .

obo:BTO_0002220 a rdfs:Class ;
  rdfs:label "15PC3 cell" ;
  rdfs:comment "Prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0002052 a rdfs:Class ;
  rdfs:label "osteogenic cell line" .

obo:BTO_0005299 a rdfs:Class ;
  rdfs:label "MUM-2C cell" ;
  rdfs:comment "Human uveal melanoma line." .

obo:BTO_0004490 a rdfs:Class ;
  rdfs:label "RFL-6 cell" ;
  rdfs:comment "Rat fetal lung fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000161 , obo:BTO_0001242 .

obo:BTO_0003381 a rdfs:Class ;
  rdfs:label "vestibular system" ;
  rdfs:comment "The organ of the inner ear containing several three semicircular ducts at right angles to one another, helps keep the body balanced." .

obo:BTO_0000277 a rdfs:Class ;
  rdfs:label "columnella muscle" ;
  rdfs:comment "The muscle of the central column or axis of a spiral univalve shell." ;
  rdfs:subClassOf obo:BTO_0000887 , obo:BTO_0001262 .

obo:BTO_0006191 a rdfs:Class ;
  rdfs:label "cumulus-oocyte complex" ;
  rdfs:comment "The cumulus-oocyte complex is an oocyte surrounded by specialized granulosa cells, called cumulus cells." ;
  rdfs:subClassOf obo:BTO_0000410 , obo:BTO_0000964 .

obo:BTO_0000900 a rdfs:Class ;
  rdfs:label "myelin sheath" ;
  rdfs:comment "The cylindrical covering on the axons of some neurons; it consists of concentric layers of myelin, formed in the peripheral nervous system by the plasma membrane of Schwann cells, and in the central nervous system by oligodendrocytes. It is interrupted at intervals along its length by gaps known as nodes of Ranvier. Myelin is an electrical insulator that serves to speed the conduction of nerve impulses." .

obo:BTO_0000536 a rdfs:Class ;
  rdfs:label "gracilis muscle" ;
  rdfs:comment "The Gracilis is the most superficial muscle on the medial side of the thigh. It is thin and flattened, broad above, narrow and tapering below. It arises by a thin aponeurosis from the anterior margins of the lower half of the symphysis pubis and the upper half of the pubic arch. The fibers run vertically downward, and end in a rounded tendon, which passes behind the medial condyle of the femur, curves around the medial condyle of the tibia, where it becomes flattened, and is inserted into the upper part of the medial surface of the body of the tibia, below the condyle." ;
  rdfs:subClassOf obo:BTO_0001367 .

obo:BTO_0005508 a rdfs:Class ;
  rdfs:label "culture condition:ferric citrate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003294 a rdfs:Class ;
  rdfs:label "Rat1-R12 cell" ;
  rdfs:comment "The Rat1-R12 cell line was derived from the Rat-1 cell line. Rat-1 cells were stably transfected with the pUHD15-1 neo plasmid which contains the tetracycline transactivator (tTA) gene and the neomycin resistance gene." .

obo:BTO_0004608 a rdfs:Class ;
  rdfs:label "Henles loop" ;
  rdfs:comment "The long U-shaped part of the renal tubule, extending through the medulla from the end of the proximal convoluted tubule. It begins with a descending limb comprising the proximal straight tubule and the thin tubule, followed by the ascending limb the distal straight tubule, and ending at the distal convoluted tubule." .

obo:BTO_0003892 a rdfs:Class ;
  rdfs:label "HC-11 cell" ;
  rdfs:comment "Mouse mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0003452 a rdfs:Class ;
  rdfs:label "adipocyte cell line" .

obo:BTO_0000014 a rdfs:Class ;
  rdfs:label "culture condition:4-hydroxybenzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000980 a rdfs:Class ;
  rdfs:label "oviduct" ;
  rdfs:comment "Either of a pair of slender ducts through which ova pass from the ovaries to the uterus in the female reproductive system of humans and higher mammals." ;
  rdfs:subClassOf obo:BTO_0003099 .

obo:BTO_0003078 a rdfs:Class ;
  rdfs:label "RAMOS-EHRB cell" ;
  rdfs:comment "Human Caucasian Burkitt's lymphoma cell line. Derived from a three-year-old male Caucasian with histologic diagnosis of Burkitt's lymphoma. It is EBV positive." .

obo:BTO_0001332 a rdfs:Class ;
  rdfs:label "DU-145 cell" ;
  rdfs:comment "Human prostate carcinoma, established from the tumor tissue removed from the metastatic central nervous system lesion of a 69-year-old man with prostate carcinoma in 1975." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0006450 a rdfs:Class ;
  rdfs:label "FHCC-98 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0003018 a rdfs:Class ;
  rdfs:label "NE-18 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002715 a rdfs:Class ;
  rdfs:label "UM-SCC-38 cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0002946 a rdfs:Class ;
  rdfs:label "MNT-1 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001292 a rdfs:Class ;
  rdfs:label "sporozoite" ;
  rdfs:comment "A usually motile infective form of some sporozoans that is a product of sporogony and initiates an asexual cycle in the new host." ;
  rdfs:subClassOf obo:BTO_0000749 .

obo:BTO_0003333 a rdfs:Class ;
  rdfs:label "culture condition:1,2-propanediol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003560 a rdfs:Class ;
  rdfs:label "CCE cell" ;
  rdfs:comment "CCE is a mouse embryonic stem cell line derived from 129/Sv mouse strain and has been provided for research use only." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0004153 a rdfs:Class ;
  rdfs:label "KT-2 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line; established from tissue or pleural effusion of Japanese patients with advanced NSCLC." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0001030 a rdfs:Class ;
  rdfs:label "J774.2 cell" ;
  rdfs:comment "Mouse, BALB/c, blood, not defined tumor cell line. Recloned from J774.1 original ascites and solid tumour. Produces IL-1." ;
  rdfs:subClassOf obo:BTO_0002279 .

obo:BTO_0003029 a rdfs:Class ;
  rdfs:label "SKLU-1 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004486 a rdfs:Class ;
  rdfs:label "OV-MZ-15 cell" ;
  rdfs:comment "Human ovarian cell line." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0002806 a rdfs:Class ;
  rdfs:label "A-375 cell" ;
  rdfs:comment "Skin malignant melanoma cell line; established from a 54 year old human female." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000803 a rdfs:Class ;
  rdfs:label "pancreatic delta cell" ;
  rdfs:comment "A type of cell in the pancreatic islets that secretes somatostatin." ;
  rdfs:subClassOf obo:BTO_0005813 .

obo:BTO_0000077 a rdfs:Class ;
  rdfs:label "posterior midgut" .

obo:BTO_0003708 a rdfs:Class ;
  rdfs:label "WPMY-1 cell" ;
  rdfs:comment "Myofibroblast stromal cell line; derived from stromal cells from the same peripheral zone of the histologically normal adult prostate, as that used for epithelial RWPE-1 cells. Stromal cells were immortalized with SV40-large-T antigen gene, using a pRSTV plasmid construct." ;
  rdfs:subClassOf obo:BTO_0001019 .

obo:BTO_0004215 a rdfs:Class ;
  rdfs:label "SF-763 cell" ;
  rdfs:comment "Human glial tumor cell line; originated from grade IV human glioblastoma biopsy specimens." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0002885 a rdfs:Class ;
  rdfs:label "MEL-745A cell" ;
  rdfs:comment "Murine friend erythroleukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000846 .

obo:BTO_0001564 a rdfs:Class ;
  rdfs:label "rectus femoris" ;
  rdfs:comment "A division of the quadriceps muscle lying in the anterior middle region of the thigh, arising from the ilium by two heads, inserted into the tuberosity of the tibia by a narrow flattened tendon, and acting to flex the thigh at the hip and with the rest of the quadriceps to extend the leg at the knee." .

obo:BTO_0000659 a rdfs:Class ;
  rdfs:label "juice" ;
  rdfs:comment "The extractable fluid contents of cells or tissues." .

obo:BTO_0001411 a rdfs:Class ;
  rdfs:label "twig" ;
  rdfs:comment "A small shoot or branch usually without its leaves." ;
  rdfs:subClassOf obo:BTO_0001243 .

obo:BTO_0003314 a rdfs:Class ;
  rdfs:label "J.CaM1.6 cell" ;
  rdfs:comment "The J.CaM1.6 cell line is a derivative mutant of Jurkat." .

obo:BTO_0003376 a rdfs:Class ;
  rdfs:label "RCH-ACV cell" ;
  rdfs:comment "Human B cell precursor leukemia cell line; established from bone marrow cells taken at relapse of common acute lymphoblastic leukemia (cALL), seven months after diagnosis, from an 8-year-old girl treated with combination chemotherapy." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0005105 a rdfs:Class ;
  rdfs:label "culture condition:ammonium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002249 a rdfs:Class ;
  rdfs:label "cervical canal" ;
  rdfs:comment "In the anatomy of the female reproductive system, the canal of the cervix is the spindle-shaped, flattened canal of the cervix, the neck of the uterus. It communicates with the uterine cavity via the internal orifice of the uterus, and with the vagina via the external orifice." .

obo:BTO_0001661 a rdfs:Class ;
  rdfs:label "alkaline gland" ;
  rdfs:comment "A paired organ in the genito-urinary apparatus of Raja (and probably other skates and rays) whose cavity is fluid filled." .

obo:BTO_0002965 a rdfs:Class ;
  rdfs:label "M10 melanoma cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002181 a rdfs:Class ;
  rdfs:label "HEK-293T cell" ;
  rdfs:comment "A highly transformed human renal epithelial line expressing two viral oncogenes, adenovirus E1a and SV40 large T antigen." .

obo:BTO_0005003 a rdfs:Class ;
  rdfs:label "villous trophoblast" .

obo:BTO_0004648 a rdfs:Class ;
  rdfs:label "culture condition:sucrose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005472 a rdfs:Class ;
  rdfs:label "RTG-2 cell" ;
  rdfs:comment "Rainbow trout, Oncorhynchus mykiss, fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0006212 a rdfs:Class ;
  rdfs:label "HTR-8 cell" ;
  rdfs:comment "First trimester human trophoblast cell line. Parental cell line of HTR-8/SVneo." ;
  rdfs:subClassOf obo:BTO_0003420 .

obo:BTO_0005757 a rdfs:Class ;
  rdfs:label "EC-9706 cell" ;
  rdfs:comment "Human esophageal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002817 .

obo:BTO_0002441 a rdfs:Class ;
  rdfs:label "pericyte" ;
  rdfs:comment "One of the peculiar elongated cells with the power of contraction, found wrapped about the outside of precapillary arterioles, postcapillary venules, and capillaries." .

obo:BTO_0004788 a rdfs:Class ;
  rdfs:label "KP-EW-MS cell" ;
  rdfs:comment "Ewing's sarcoma family tumor cell line." ;
  rdfs:subClassOf obo:BTO_0004785 .

obo:BTO_0001187 a rdfs:Class ;
  rdfs:label "roe" ;
  rdfs:comment "The eggs of a fish especially when still enclosed in the ovarian membrane." ;
  rdfs:subClassOf obo:BTO_0000369 .

obo:BTO_0000824 a rdfs:Class ;
  rdfs:label "culture condition:mannose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001387 a rdfs:Class ;
  rdfs:label "tonsil" ;
  rdfs:comment "The human palatine tonsils and the nasopharyngeal tonsil are lymphoepithelial tissues located in strategic areas of the oropharynx and nasopharynx, although most commonly, the term tonsils refers to the palatine tonsils that can be seen in the back of the throat." ;
  rdfs:subClassOf obo:BTO_0000753 .

obo:BTO_0005373 a rdfs:Class ;
  rdfs:label "oil secretion" ;
  rdfs:subClassOf obo:BTO_0002979 .

obo:BTO_0006548 a rdfs:Class ;
  rdfs:label "LC-540 cell" ;
  rdfs:comment """Rat Fischer Leydig cell testicular tumour
cell line, established  from a spontaneous transplantable Leydig cell tumour in a Fischer strain rat,""" ;
  rdfs:subClassOf obo:BTO_0001560 .

obo:BTO_0004950 a rdfs:Class ;
  rdfs:label "BV173 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0004045 a rdfs:Class ;
  rdfs:label "air pouch" ;
  rdfs:comment "An air pouch is produced by subcutaneous injection of sterile air into the back of a mouse or rat. With the air pouch model large volumes of inflammatory exudates can be collected with relative ease. Injection of carrageenan solution or other inflammatory irritant (i.e. LPS, bradykinin), into the air pouch causes an inflammatory reaction." ;
  rdfs:subClassOf obo:BTO_0001490 .

obo:BTO_0003608 a rdfs:Class ;
  rdfs:label "culture condition:4-amino-3-hydroxybenzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002112 a rdfs:Class ;
  rdfs:label "tela submucosa intestini tenuis" ;
  rdfs:comment "The submucous layer of the wall of the small intestine." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0002412 a rdfs:Class ;
  rdfs:label "PG cell" ;
  rdfs:comment "Metastatic human lung giant cell carcinoma (PG) cell line." ;
  rdfs:subClassOf obo:BTO_0002411 .

obo:BTO_0003629 a rdfs:Class ;
  rdfs:label "annulus fibrosus disci intervertebralis" ;
  rdfs:comment "The ring of fibrocartilage and fibrous tissue forming the circumference of the intervertebral disc; surrounds the nucleus pulposus, which is prone to herniation when the annulus fibrosus is compromised." ;
  rdfs:subClassOf obo:BTO_0003627 .

obo:BTO_0006371 a rdfs:Class ;
  rdfs:label "OBA-9 cell" ;
  rdfs:comment "A Simian virus-40 antigen-immortalized human gingival epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003578 .

obo:BTO_0006257 a rdfs:Class ;
  rdfs:label "oral sucker" ;
  rdfs:comment "A mouth, as of a leech, adapted for sucking or adhering." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0005485 a rdfs:Class ;
  rdfs:label "MC-3T3 cell" ;
  rdfs:comment "Osteoblast precursor cell line derived from Mus musculus calvaria." ;
  rdfs:subClassOf obo:BTO_0004324 .

obo:BTO_0002051 a rdfs:Class ;
  rdfs:label "preosteoblast" ;
  rdfs:comment "A mesenchymal cell that differentiates into an osteoblast." ;
  rdfs:subClassOf obo:BTO_0002050 .

obo:BTO_0004560 a rdfs:Class ;
  rdfs:label "thymic medulla" ;
  rdfs:comment "Histologically, the thymus can be divided into a central medulla and a peripheral cortex which is surrounded by an outer capsule. The cortex and medulla play different roles in the development of T cells. Cells in the thymus can be divided into thymic stromal cells and cells of hematopoietic origin." .

obo:BTO_0005983 a rdfs:Class ;
  rdfs:label "culture condition:cholesterol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004301 a rdfs:Class ;
  rdfs:label "neuroepithelial cell" .

obo:BTO_0004272 a rdfs:Class ;
  rdfs:label "hyalocyte cell line" .

obo:BTO_0003748 a rdfs:Class ;
  rdfs:label "superficial temporal vein" ;
  rdfs:comment "The superficial temporal vein is a vein of the side of the head." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0001004 a rdfs:Class ;
  rdfs:label "parotid gland" ;
  rdfs:comment "Either of a pair of large serous salivary glands situated below and in front of the ear." ;
  rdfs:subClassOf obo:BTO_0001203 .

obo:BTO_0001253 a rdfs:Class ;
  rdfs:label "skin" ;
  rdfs:comment "The integument of an animal (as a fur-bearing mammal or a bird) separated from the body usually with its hair or feathers." ;
  rdfs:subClassOf obo:BTO_0000634 .

obo:BTO_0003788 a rdfs:Class ;
  rdfs:label "splenial gyrus" ;
  rdfs:comment "The band of cortex on the medial surface of the cerebral hemisphere that passes around the splenium of the corpus callosum, narrowing anteriorly and finally blending with the indusium griseum." .

obo:BTO_0000680 a rdfs:Class ;
  rdfs:label "kidney cancer cell" ;
  rdfs:comment "A cell of a group of cancers that starts in the kidney. The main types of kidney cancer are renal cell cancer (RCC), transitional cell cancer (TCC), and Wilms tumor." .

obo:BTO_0001956 a rdfs:Class ;
  rdfs:label "XLT-15 cell" ;
  rdfs:comment "Myoblast cell line; established from stage 57 tadpole tails of Xenopus laevis." ;
  rdfs:subClassOf obo:BTO_0000256 .

obo:BTO_0002856 a rdfs:Class ;
  rdfs:label "coelomocyte" ;
  rdfs:comment "1: Corpuscles (usually amoebocytes) in the coelomic or pseudocoelomic fluids of invertebrates. 2:(Annelida) amoebocytes and elaeocytes. 3: (Echinodermata) The spindle-shaped cells, phagocytes, and crystal cells. 4: (Nematoda) The mesenchymatous cells in the body cavity." .

obo:BTO_0003049 a rdfs:Class ;
  rdfs:label "kerathoacanthoma cell" ;
  rdfs:comment "A benign, locally destructive epithelial tumor closely resembling squamous cell carcinoma clinically and histologically; exposure to sunlight is believed to play a role in its etiology." ;
  rdfs:subClassOf obo:BTO_0000176 .

obo:BTO_0000219 a rdfs:Class ;
  rdfs:label "plastron" ;
  rdfs:comment "The ventral part of the shell of a turtle or tortoise." .

obo:BTO_0000390 a rdfs:Class ;
  rdfs:label "endosperm" ;
  rdfs:comment "A triploid nutritive tissue resulting from the fusion of a haploid sperm nucleus with the two haploid polar nuclei in the ovule of angiosperms." .

obo:BTO_0002209 a rdfs:Class ;
  rdfs:label "NCI-H596 cell" ;
  rdfs:comment "Human lung adenosquamous carcinoma cell line; derived in 1983 from a tumor mass in the chest wall of a patient with adenosquamous carcinoma of the lung." ;
  rdfs:subClassOf obo:BTO_0001911 , obo:BTO_0002202 .

obo:BTO_0003160 a rdfs:Class ;
  rdfs:label "PrEC cell" ;
  rdfs:comment "Primary normal human prostate epithelial cells." .

obo:BTO_0005385 a rdfs:Class ;
  rdfs:label "root quiescent center" ;
  rdfs:comment "The region in the apical meristem of a root where little or no cell division occurs. The cells in the quiescent centre are capable of assuming meristematic activity if the initials in the meristem are damaged, and thus act as a reservoir of potential initials, protected from damage by their relative inactivity. The quiescent centre may also be a site of auxin synthesis." .

obo:BTO_0001851 a rdfs:Class ;
  rdfs:label "portio supravaginalis cervicis" ;
  rdfs:comment "Supravaginal portion of cervix: the part of the cervix uteri that does not protrude into the vagina." .

obo:BTO_0001795 a rdfs:Class ;
  rdfs:label "anterior silk gland" ;
  rdfs:subClassOf obo:BTO_0001250 .

obo:BTO_0006304 a rdfs:Class ;
  rdfs:label "JC cell" ;
  rdfs:comment "Mouse mammary gland adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002935 a rdfs:Class ;
  rdfs:label "SG231 cell" ;
  rdfs:comment "Human cholangiocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0005972 a rdfs:Class ;
  rdfs:label "MI8-5 CHO cell" ;
  rdfs:comment "Glc-P-Dol-dependent glucosyltransferase  I deficient CHO cell line." .

obo:BTO_0001720 a rdfs:Class ;
  rdfs:label "floor plate" ;
  rdfs:comment "The unpaired ventral longitudinal zone of the neural tube, forming the floor of that tube." .

obo:BTO_0005266 a rdfs:Class ;
  rdfs:label "cirrhosis disease specific cell type" ;
  rdfs:comment "Widespread disruption of normal liver structure by fibrosis and the formation of regenerative nodules that is caused by any of various chronic progressive conditions affecting the liver as long-term alcohol abuse or hepatitis." .

obo:BTO_0004333 a rdfs:Class ;
  rdfs:label "Do11.10 cell" ;
  rdfs:comment "T cell hybridoma cell line that specifically expresses high levels of HDAC7, a class IIa histone deacetylase." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0003325 a rdfs:Class ;
  rdfs:label "GE-11 cell" ;
  rdfs:comment "Epithelial-like beta1-knockout mouse embryonic stem cells." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0003852 a rdfs:Class ;
  rdfs:label "astroglia" ;
  rdfs:comment "Neuroglia tissue made up of astrocytes." ;
  rdfs:subClassOf obo:BTO_0000524 .

obo:BTO_0003973 a rdfs:Class .

obo:BTO_0004417 a rdfs:Class ;
  rdfs:label "Daltons lymphoma ascites cell" ;
  rdfs:subClassOf obo:BTO_0004416 .

obo:BTO_0002633 a rdfs:Class ;
  rdfs:label "4a-2s4 cell" ;
  rdfs:comment "Anopheles gambiae cell line established from newly hatched larvae via a homogenization technique." ;
  rdfs:subClassOf obo:BTO_0002632 .

obo:BTO_0001787 a rdfs:Class ;
  rdfs:label "pars distalis" ;
  rdfs:comment "The distal part of adenohypophysis: the part that makes up the main body of the gland." .

obo:BTO_0006423 a rdfs:Class ;
  rdfs:label "BCIRL-HZ-AM1 cell" ;
  rdfs:comment "Ovary cell line, derived from pupal ovaries of Heliothis zea." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0005014 a rdfs:Class ;
  rdfs:label "B-cell leukemia cell" ;
  rdfs:comment "B-cell leukemia describes several different types of lymphoid leukemia which affect B cells." ;
  rdfs:subClassOf obo:BTO_0000744 .

obo:BTO_0001680 a rdfs:Class ;
  rdfs:label "anus" ;
  rdfs:comment "The posterior opening of the alimentary canal." .

obo:BTO_0006015 a rdfs:Class ;
  rdfs:label "BRE-80 cell" ;
  rdfs:comment "Normal breast epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0000816 .

obo:BTO_0002791 a rdfs:Class ;
  rdfs:label "culture condition:arginine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000835 a rdfs:Class ;
  rdfs:label "culture condition:L-idonate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004262 a rdfs:Class ;
  rdfs:label "cerebral giant cell" ;
  rdfs:comment "A pair of symmetrical, giant, serotonin-containing neurones have been found in the cerebral ganglia of the pulmonate molluscs Limax, Ariolimax, Helix, Planorbis and Helisoma and the opisthobranch molluscs Aplysia, Tritonia and Pleurobranchaea and in the snail Lymnaea stagnalis." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0000563 a rdfs:Class ;
  rdfs:label "culture condition:aerobically-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005085 a rdfs:Class ;
  rdfs:label "common penile artery" ;
  rdfs:comment "The artery that serves blood to the penis. It subdivides into three arteries, the bulbourethral artery, the dorsal artery of the penis and the cavernosal artery." .

obo:BTO_0002452 a rdfs:Class ;
  rdfs:label "thalamic nucleus" .

obo:BTO_0005526 a rdfs:Class ;
  rdfs:label "axillary bud primordium" ;
  rdfs:comment "It arises in the axil of a leaf primordium." .

obo:BTO_0000784 a rdfs:Class ;
  rdfs:label "lymph node" ;
  rdfs:comment "Any of the rounded masses of lymphoid tissue that are surrounded by a capsule of connective tissue, are distributed along the lymphatic vessels, and contain numerous lymphocytes which filter the flow of lymph." ;
  rdfs:subClassOf obo:BTO_0000753 , obo:BTO_0001488 .

obo:BTO_0003998 a rdfs:Class ;
  rdfs:label "41-M cell" ;
  rdfs:comment "Human ovary cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0005096 a rdfs:Class ;
  rdfs:label "epithelial stem cell" ;
  rdfs:comment "Epithelial stem cells in the lining of the digestive tract occur in deep crypts and give rise to several cell types: absorptive cells, goblet cells, paneth cells, and enteroendocrine cells." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0002741 a rdfs:Class ;
  rdfs:label "hepatic stellate cell" ;
  rdfs:comment "Hepatic stellate cells are pericytes found in the perisinusoidal space (a small area between the sinusoids and hepatocytes) of the liver. The stellate cell is the major cell type involved in liver fibrosis, which is the formation of scar tissue in response to liver damage." ;
  rdfs:subClassOf obo:BTO_0002441 , obo:BTO_0005265 .

obo:BTO_0002365 a rdfs:Class ;
  rdfs:label "chondroblastoma cell" ;
  rdfs:comment "Any cell of a usually benign tumor derived from immature cartilage cells, occurring primarily in the epiphyses of adolescents; it is characterized by fine, matrix-like calcifications arranged hexagonally, often resembling chicken wire, around closely packed cells." .

obo:BTO_0004857 a rdfs:Class ;
  rdfs:label "ookinete" ;
  rdfs:comment "A motile zygote in various protozoans (as the malaria parasite)." ;
  rdfs:subClassOf obo:BTO_0000854 .

obo:BTO_0006053 a rdfs:Class ;
  rdfs:label "SJNB-1 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001985 a rdfs:Class ;
  rdfs:label "culture condition:cytosine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005450 a rdfs:Class ;
  rdfs:label "B-12 cell" ;
  rdfs:comment "Rat nervous tissue glial tumour cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0003434 a rdfs:Class ;
  rdfs:label "choanomastigote" ;
  rdfs:comment "A term, in the series used to describe developmental stages of the parasitic flagellates, denoting the barleycorn form of the flagellate in the genus Crithidia characterised by a collarlike extension surrounding the anterior and through which the single flagellum emerges." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0006145 a rdfs:Class ;
  rdfs:label "NM2C5-GFP cell" ;
  rdfs:comment "Human melanocyte melanoma cell line. Recent studies have generated questions about the origin of the parent cell line, MDA-MB-435. Gene expression analysis of the cells produced microarrays in which MDA-MB-435 clustered with cell lines of melanoma origin instead of breast." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002867 a rdfs:Class ;
  rdfs:label "TE-6 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0003246 a rdfs:Class ;
  rdfs:label "aortic endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0006281 a rdfs:Class ;
  rdfs:label "YY-8103 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0004389 a rdfs:Class ;
  rdfs:label "angiomyolipoma cell line" .

obo:BTO_0005781 a rdfs:Class ;
  rdfs:label "uroepithelial cell" .

obo:BTO_0003272 a rdfs:Class ;
  rdfs:label "small saphenous vein" ;
  rdfs:comment "The small saphenous vein runs behind the outer malleolus (the protuberance on the outside of the ankle joint), comes up the back of the leg and joins the popliteal vein in the space behind the knee (the popliteal space)." ;
  rdfs:subClassOf obo:BTO_0001808 .

obo:BTO_0003119 a rdfs:Class ;
  rdfs:label "clitoral gland" ;
  rdfs:comment "The preputial glands of female animals are sometimes called clitoral glands." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0004591 a rdfs:Class ;
  rdfs:label "NHEC cell" ;
  rdfs:comment "Human normal nasal epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004590 .

obo:BTO_0003391 a rdfs:Class ;
  rdfs:label "hepatic primordium" ;
  rdfs:subClassOf obo:BTO_0001886 .

obo:BTO_0001197 a rdfs:Class ;
  rdfs:label "S-180 cell" ;
  rdfs:comment "Mouse sarcoma cell line, from an adult mus musculus; Highly malignant mouse sarcoma cells, often passaged in ascites form." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0005074 a rdfs:Class ;
  rdfs:label "M9A cell" ;
  rdfs:comment "Mouse macrophage cell line expressing an autoactivating form of pro-matrix-metalloproteinase-9." .

obo:BTO_0001762 a rdfs:Class ;
  rdfs:label "neonate" ;
  rdfs:comment "A newborn child; especially: a child less than a month old." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0000466 a rdfs:Class ;
  rdfs:label "flexor digitorum longus" ;
  rdfs:comment "A muscle of the tibial side of the leg that flexes the terminal phalanx of each of the four small toes." ;
  rdfs:subClassOf obo:BTO_0000477 , obo:BTO_0001257 .

obo:BTO_0001350 a rdfs:Class ;
  rdfs:label "tapetum" ;
  rdfs:comment "A layer of nutritive cells that invests the sporogenous tissue in the sporangium of higher plants." .

obo:BTO_0005091 a rdfs:Class ;
  rdfs:label "outer fibrous layer of perichondrium" ;
  rdfs:comment "The perichondrium consists of two separate layers: an outer fibrous layer and inner chondrogenic layer. The fibrous layer contains fibroblasts, which produce collagenous fibers." .

obo:BTO_0002423 a rdfs:Class ;
  rdfs:label "mesothelioma cell" ;
  rdfs:comment "A cell from a tumor derived from mesothelial tissue (peritoneum, pleura, pericardium); both benign and malignant varieties exist. Malignant varieties are often the result of excessive exposure to asbestos." .

obo:BTO_0003311 a rdfs:Class ;
  rdfs:label "Mz-ChA-1 cell" ;
  rdfs:comment "Human cholangiocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0005497 a rdfs:Class ;
  rdfs:label "nucleus pulposus cell line" .

obo:BTO_0000357 a rdfs:Class ;
  rdfs:label "nectary" ;
  rdfs:comment "A plant gland that secretes nectar." .

obo:BTO_0002408 a rdfs:Class ;
  rdfs:label "NRK-52E cell" ;
  rdfs:comment "Rat kidney epithelial-like cells. Cell line was cloned from a mixed culture of normal rat kidney cells as was NRK-49F the two cell lines were described to be distinct in growth properties and in transforming abilities; NRK-52E is supposed to be much more stable." .

obo:BTO_0003422 a rdfs:Class ;
  rdfs:label "AF5 cell" ;
  rdfs:comment "Immortalized mesencephalic-derived AF5 cell line. The characterized AF5 rat neural-derived cell line displays GABAergic properties during culture in vitro." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0005994 a rdfs:Class ;
  rdfs:label "RWPE-2 cell" ;
  rdfs:comment "Normal human epithelial prostate cell line. RWPE-2 cells were derived from RWPE-1 cells by transformation with Ki-ras using the Kirsten murine sarcoma virus, Ki-MuSV." .

obo:BTO_0000299 a rdfs:Class ;
  rdfs:label "cotton fibre" ;
  rdfs:comment "Each seed of a cotton plant is surrounded with downy fiber, white or creamy in color and easily spun. The fibers flatten and twist naturally as they dry." ;
  rdfs:subClassOf obo:BTO_0000450 .

obo:BTO_0003546 a rdfs:Class ;
  rdfs:label "KP-N-YN cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000514 a rdfs:Class ;
  rdfs:label "germ" ;
  rdfs:comment "A small mass of living substance capable of developing into an organism or one of its parts." ;
  rdfs:subClassOf obo:BTO_0000174 , obo:BTO_0000720 .

obo:BTO_0000222 a rdfs:Class ;
  rdfs:label "myoblast" ;
  rdfs:comment "An embryonic cell that becomes a cell of muscle fiber." .

obo:BTO_0002159 a rdfs:Class ;
  rdfs:label "cleistothecium" ;
  rdfs:comment "The fruiting body (ascocarp) produced by certain ascomycetes, in which there is no pore for the escape of ascospores, the spores being released by rupture or decay of the body." ;
  rdfs:subClassOf obo:BTO_0002161 .

obo:BTO_0004811 a rdfs:Class ;
  rdfs:label "Clara cell" ;
  rdfs:comment "Clara cells are specialized non-ciliated epithelial cells in the terminal bronchioles of mammals and in the upper airways of some species such as mice." .

obo:BTO_0004118 a rdfs:Class ;
  rdfs:label "HITC6 cell" ;
  rdfs:comment "Maturation-competent human vascular smooth muscle cell line, generated from the human internal thoracic artery." ;
  rdfs:subClassOf obo:BTO_0001200 .

obo:BTO_0003586 a rdfs:Class ;
  rdfs:label "Hep-G2/C3A cell" ;
  rdfs:comment "Cultured hepatoma cells derived from Hep-G2." .

obo:BTO_0002108 a rdfs:Class ;
  rdfs:label "tela submucosa bronchiorum" ;
  rdfs:comment "The layer of tissue underlying the tunica mucosa of the bronchi." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0002463 a rdfs:Class ;
  rdfs:label "ventral lateral complex of thalamus" ;
  rdfs:comment "Nuclei ventrolaterally located within the ventral thalamic nuclei, subdivided into anterior and posterior nuclei." ;
  rdfs:subClassOf obo:BTO_0002467 .

obo:BTO_0000169 a rdfs:Class ;
  rdfs:label "calyx" ;
  rdfs:comment "The usually green outer whorl of a flower consisting of sepals." .

obo:BTO_0000846 a rdfs:Class ;
  rdfs:label "erythroleukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0004668 a rdfs:Class ;
  rdfs:label "hand" ;
  rdfs:comment "1. The terminal part of the vertebrate forelimb when modified, as in humans, as a grasping organ. 2. A part serving the function of or resembling a hand as the hind foot of an ape or the chela of a crustacean." .

obo:BTO_0004987 a rdfs:Class ;
  rdfs:label "SNU-16 cell" ;
  rdfs:comment "Gastric carcinoma cell line; derived in 1987 by J. Park and associates from ascites of a patient with poorly differentiated carcinoma of the stomach." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0002473 a rdfs:Class ;
  rdfs:label "infundibular nucleus" ;
  rdfs:comment "A nucleus of nerve cells in the posterior hypothalamic region, extending into the median eminence and almost entirely surrounding the base of the infundibulum." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0004420 a rdfs:Class ;
  rdfs:label "digestive cell" ;
  rdfs:comment "Three cell types are present in tubules of the digestive gland of the marine prosobranch Maoricrypta monoxyla. Histochemistry, and feeding and starvation experiments established that the main type, the digestive cell, is involved in endocytotic uptake of food material from the lumen." .

obo:BTO_0001798 a rdfs:Class ;
  rdfs:label "prothallium" ;
  rdfs:comment "A small, flat, delicate structure produced by a germinating spore and bearing sex organs. It is the gametophyte of ferns and some other plants." ;
  rdfs:subClassOf obo:BTO_0000495 .

obo:BTO_0003590 a rdfs:Class ;
  rdfs:label "GM01492 cell" ;
  rdfs:comment "Fibroblast cell line developed from a skin biopsy sample of a person with Bloom Syndrome." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001361 a rdfs:Class ;
  rdfs:label "CMT93/69 cell" ;
  rdfs:comment "Mouse C57BL/1CRF rectum carcinoma." ;
  rdfs:subClassOf obo:BTO_0000297 .

obo:BTO_0003830 a rdfs:Class ;
  rdfs:label "culture condition:rutin-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000208 a rdfs:Class ;
  rdfs:label "caryopsis" ;
  rdfs:comment "Simple, dry, indehiscent fruit with a single seed that is fused to the ovary wall, example: wheat." ;
  rdfs:subClassOf obo:BTO_0000486 .

obo:BTO_0004026 a rdfs:Class ;
  rdfs:label "4TO7 cell" ;
  rdfs:comment "Mouse mammary tumor cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0004366 a rdfs:Class ;
  rdfs:label "lateral geniculate nucleus" ;
  rdfs:comment "The lateral geniculate nucleus is the primary processing center for visual information received from the retina of the eye. The LGN is found inside the thalamus of the brain, and is thus part of the central nervous system." .

obo:BTO_0002723 a rdfs:Class ;
  rdfs:label "HBL-6 cell" ;
  rdfs:comment "PEL cell line carrying the Epstein-Barr virus (EBV) infection." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0001895 a rdfs:Class ;
  rdfs:label "gastrointestinal endocrine cell" ;
  rdfs:comment "Cells found throughout the lining of the gastrointestinal tract that contain regulatory peptide hormones and/or biogenic amines. The substances are located in secretory granules and act in an endocrine or paracrine manner. Some of these substances are also found in neurons in the gut. There are at least 15 different types of endocrine cells of the gut. Some take up amine precursors and have been called APUD CELLS. However, most endocrine cells of the gut apparently have endodermal rather than neuroectodermal origin, so the relationship with APUD cells is not clear." .

obo:BTO_0003619 a rdfs:Class ;
  rdfs:label "Hi-5 cell" ;
  rdfs:comment "Insect cell line from Trichoplusia ni (embryo) egg cells." ;
  rdfs:subClassOf obo:BTO_0000669 , obo:BTO_0000977 .

obo:BTO_0000775 a rdfs:Class ;
  rdfs:label "lymphocyte" ;
  rdfs:comment "Any of the colorless weakly motile cells originating from stem cells and differentiating in lymphoid tissue (as of the thymus or bone marrow) that are the typical cellular elements of lymph, include the cellular mediators of immunity, and constitute 20 to 30 percent of the white blood cells of normal human blood." ;
  rdfs:subClassOf obo:BTO_0000751 , obo:BTO_0001096 .

obo:BTO_0003336 a rdfs:Class ;
  rdfs:label "pulmonary artery smooth muscle cell" .

obo:BTO_0005395 a rdfs:Class ;
  rdfs:label "58CrPM cell" ;
  rdfs:comment "Cell culture of Catharanthus roseus." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0003513 a rdfs:Class ;
  rdfs:label "hepatic stellate cell line" ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0001698 a rdfs:Class ;
  rdfs:label "bulbourethral gland" ;
  rdfs:comment "Either of two small racemose glands that are located below the prostate and discharge a component of the seminal fluid into the urethra. They are homologous to the Bartholin's glands in the female." ;
  rdfs:subClassOf obo:BTO_0000080 , obo:BTO_0003096 .

obo:BTO_0001398 a rdfs:Class ;
  rdfs:label "trypomastigote" ;
  rdfs:comment "Any of the bodies representing the morphologic (trypanosomal) stage in the life cycle of certain trypanosomatid protozoa, resembling the typical adult form of members of the genus Trypanosoma, in which the slender elongate cell has a kinetoplast and basal body located at the posterior end and a flagellum running anteriorly along an undulating membrane to become a free-flowing structure." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0004907 a rdfs:Class ;
  rdfs:label "Bergmanns glia" ;
  rdfs:comment "A specialized form of astrocytes in the Purkinje cell layer of the cerebellum." ;
  rdfs:subClassOf obo:BTO_0000099 .

obo:BTO_0005036 a rdfs:Class ;
  rdfs:label "Fanconi anemia lymphoid cell line" ;
  rdfs:subClassOf obo:BTO_0001586 .

obo:BTO_0003980 a rdfs:Class ;
  rdfs:label "SGHPL-4 cell" ;
  rdfs:comment "Extravillous trophoblast cell line." ;
  rdfs:subClassOf obo:BTO_0003420 .

obo:BTO_0000678 a rdfs:Class ;
  rdfs:label "G-402 cell" ;
  rdfs:comment "Human Caucasian renal leiomyoblastoma cell line, derived from a tumour of a 9-month-old female Caucasian. Highly transformed and grows in soft agar." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0002659 a rdfs:Class ;
  rdfs:label "embryonic brain cortex cell line" ;
  rdfs:subClassOf obo:BTO_0002871 .

obo:BTO_0001068 a rdfs:Class ;
  rdfs:label "pinealocyte" ;
  rdfs:comment "The parenchymatous epithelioid cell of the pineal gland that has prominent nucleoli and long processes ending in bulbous expansions." .

obo:BTO_0000828 a rdfs:Class ;
  rdfs:label "throat" ;
  rdfs:comment "1: The part of the neck in front of the spinal column. 2: The passage through the neck to the stomach and lungs." .

obo:BTO_0002164 a rdfs:Class ;
  rdfs:label "perithecium" ;
  rdfs:comment "The flask-shaped fruiting body of certain molds and ascomycetous fungi having a pore for the escape of spores." ;
  rdfs:subClassOf obo:BTO_0002161 .

obo:BTO_0006499 a rdfs:Class ;
  rdfs:label "spermatocyte cell line" .

obo:BTO_0004171 a rdfs:Class ;
  rdfs:label "MOLT-13 cell" ;
  rdfs:comment "Human T cell leukemia cell line; established from the bone marrow of a 2-year-old girl with T-ALL (T cell acute lymphoblastic leukemia, FAB L2) at relapse in 1983." ;
  rdfs:subClassOf obo:BTO_0002504 .

obo:BTO_0002025 a rdfs:Class ;
  rdfs:label "HSC-3 cell" ;
  rdfs:comment "Human oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0002930 a rdfs:Class ;
  rdfs:label "fascia" ;
  rdfs:comment "A sheet of connective tissue covering or binding together body structures as muscles." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0000539 a rdfs:Class ;
  rdfs:label "granulocyte" ;
  rdfs:comment "A polymorphonuclear white blood cell with granule-containingcytoplasm. In humans the granulocytes are also classified as polymorphonuclear leucocytes and are subdivided according to the staining properties of the granules into eosinophils, basophils and neutrophils, some invertebrate blood cells are also referred to, not very helpfully, as granulocytes." ;
  rdfs:subClassOf obo:BTO_0000751 .

obo:BTO_0001009 a rdfs:Class ;
  rdfs:label "PC-12 cell" ;
  rdfs:comment "Rat adrenal pheochromocytoma established from a transplantable rat adrenal pheochromocytoma in 1976; cells were described to synthesize catecholamines (dopamine, norepinephrine); in response to nerve growth factor (NGF) a neuronal phenotype could be induced reversibly." ;
  rdfs:subClassOf obo:BTO_0000201 .

obo:BTO_0003257 a rdfs:Class ;
  rdfs:label "granulation tissue" ;
  rdfs:comment "Highly vascularized tissue that replaces the initial fibrin clot in a wound. Vascularization is by ingrowth of capillary endothelium from the surrounding vasculature. The tissue is also rich in fibroblasts (that will eventually produce the fibrous tissue) and leucocytes." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0002913 a rdfs:Class ;
  rdfs:label "epithelioma cell line" .

obo:BTO_0004459 a rdfs:Class ;
  rdfs:label "LN-382 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003062 a rdfs:Class ;
  rdfs:label "MIO-M1 cell" ;
  rdfs:comment "A spontaneously immortalized Mueller cell line. It has been named MIO-M1 (Moorfields/Institute of Ophthalmology-Mueller 1) after the authors institution." ;
  rdfs:subClassOf obo:BTO_0003063 .

obo:BTO_0006042 a rdfs:Class ;
  rdfs:label "NCI-H1581 cell" ;
  rdfs:comment "Human stage 4 non-small cell lung cancer cell line, established from a 44 years old caucasian male smoker." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0000262 a rdfs:Class ;
  rdfs:label "clove" ;
  rdfs:comment "One of the small bulbs (as in garlic) developed in the axils of the scales of a large bulb." ;
  rdfs:subClassOf obo:BTO_0000159 .

obo:BTO_0006023 a rdfs:Class ;
  rdfs:label "NCI-H2228 cell" ;
  rdfs:comment "Human non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0003722 a rdfs:Class ;
  rdfs:label "UT-SCC-24A cell" ;
  rdfs:comment "Oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0000868 a rdfs:Class ;
  rdfs:label "milk" ;
  rdfs:comment "A fluid secreted by the mammary glands of females for the nourishment of their young; especially: cow's milk used as a food by humans." .

obo:BTO_0003227 a rdfs:Class ;
  rdfs:label "SMMC-7721 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." .

obo:BTO_0001494 a rdfs:Class ;
  rdfs:label "fungus" ;
  rdfs:comment "Any of a major group (Fungi) of saprophytic and parasitic spore-producing organisms including molds, rusts, mildews, smuts, mushrooms, and yeasts." ;
  rdfs:subClassOf obo:BTO_0000000 .

obo:BTO_0000583 a rdfs:Class ;
  rdfs:label "bone marrow cancer cell" .

obo:BTO_0003203 a rdfs:Class ;
  rdfs:label "Moroff cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0000498 a rdfs:Class ;
  rdfs:label "gastric cancer cell" ;
  rdfs:comment "Gastric cancer is a cancer of the stomach." .

obo:BTO_0006083 a rdfs:Class ;
  rdfs:label "U-87MG/DDP cell" ;
  rdfs:comment "Cisplatin-resistant U87MG cell line; established by continuing exposure of the parental cells to gradient increasing concentration of the respective drug." .

obo:BTO_0004460 a rdfs:Class ;
  rdfs:label "FD-1 cell" ;
  rdfs:comment "Farber disease dermal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0002462 a rdfs:Class ;
  rdfs:label "posterior nuclear complex of thalamus" ;
  rdfs:comment "Groups of nerve cells anterior to the pulvinar, forming an ill-defined complex that receives afferents from the spinothalamic tract and superior and inferior colliculi." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0000409 a rdfs:Class ;
  rdfs:label "epimastigote" ;
  rdfs:comment "Any of the bodies representing the morphologic (crithidial) stage in the life cycle of certain trypanosomatid protozoa resembling the typical adult form of members of the genus Crithidia, in which the kinetoplast and basal body are located anterior to the central vesicular nucleus of the slender elongate cell and the flagellum is attached to the body up to the anterior end by a short undulating membrane before becoming free-flowing." ;
  rdfs:subClassOf obo:BTO_0000092 .

obo:BTO_0006560 a rdfs:Class ;
  rdfs:label "Cor-1 cell" ;
  rdfs:comment "Neural stem cell line from mouse foetal cortex." ;
  rdfs:subClassOf obo:BTO_0001242 , obo:BTO_0002891 .

obo:BTO_0002073 a rdfs:Class ;
  rdfs:label "pavement epithelium" ;
  rdfs:comment "Squamous epithelium composed of a single layer of cells." ;
  rdfs:subClassOf obo:BTO_0002072 .

obo:BTO_0001758 a rdfs:Class ;
  rdfs:label "ocellus" ;
  rdfs:comment "A small simple eye, found in many invertebrates, usually consisting of a few sensory cells and a single lens." ;
  rdfs:subClassOf obo:BTO_0000439 .

obo:BTO_0006556 a rdfs:Class ;
  rdfs:label "U-5A cell" ;
  rdfs:comment "The human sarcoma cell line HT 1080 was transfected with a vector encoding a selectable marker (guanine phosphoribosyltransferase) regulated by alpha interferon to create the 2fTGH cell line, enabling the selection of mutations in genes encoding components of the interferon signalling pathway. Chemical mutagenesis of the parent 2fTGH cell line enabled the isolation of a number of IFNg signalling mutants available from ECACC: U2A , U3A , U4A, U4C, U5A, U6A. Each contains a different mutation in the IFN signalling pathway. The 2fTGH panel provides a tool for the in vitro study and comparison of disrupted interferon signalling at multiple points across the IFN pathway. The U5A mutant cell line lacks the ifnar2-2 component of the interferon-alpha and interferon-beta receptor and the beta-R1 gene product. U5A is completely defective in interferon alphabeta binding and response." .

obo:BTO_0005503 a rdfs:Class ;
  rdfs:label "corpus cavernosum smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0001906 a rdfs:Class ;
  rdfs:label "cephalothorax" ;
  rdfs:comment "The united head and thorax of an arachnid or higher crustacean." ;
  rdfs:subClassOf obo:BTO_0000282 , obo:BTO_0001368 .

obo:BTO_0000999 a rdfs:Class ;
  rdfs:label "plant parenchyma" ;
  rdfs:comment "A tissue of higher plants that consists of thin-walled living photosynthetic or storage cells capable of division even when mature and that makes up much of the substance of leaves and roots, the pulp of fruits, and parts of stems and supporting structures." ;
  rdfs:subClassOf obo:BTO_0001310 .

obo:BTO_0003870 a rdfs:Class ;
  rdfs:label "insect tracheal system" ;
  rdfs:comment "The respiratory system of insects that consists of internal airfilled tubes." ;
  rdfs:subClassOf obo:BTO_0000203 .

obo:BTO_0002811 a rdfs:Class ;
  rdfs:label "flag leaf" ;
  rdfs:comment "The final leaf to emerge in a cereal plant." ;
  rdfs:subClassOf obo:BTO_0002812 .

obo:BTO_0004138 a rdfs:Class ;
  rdfs:label "gingival fibroblast" ;
  rdfs:comment "A formative cell that moderates wound healing and healing after treatment." ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0002119 a rdfs:Class ;
  rdfs:label "spikelet" ;
  rdfs:comment "A small or secondary spike, specifically one of the small few-flowered bracted spikes that make up the compound inflorescence of a grass or sedge." ;
  rdfs:subClassOf obo:BTO_0001278 .

obo:BTO_0000085 a rdfs:Class ;
  rdfs:label "appressorium" ;
  rdfs:comment "The flattened thickened tip of a hyphal branch by which some parasitic fungi are attached to their host." .

obo:BTO_0000245 a rdfs:Class ;
  rdfs:label "culture condition:chlorobenzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000762 a rdfs:Class ;
  rdfs:label "lung cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000297 , obo:BTO_0000353 .

obo:BTO_0000126 a rdfs:Class ;
  rdfs:label "blastoderm" ;
  rdfs:comment "The mass of cells produced by cleavage of a fertilized ovum, forming the hollow sphere of the blastula, or the cellular cap above a floor of segmented yolk in the discoblastula of telolecithal eggs." .

obo:BTO_0003123 a rdfs:Class ;
  rdfs:label "microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001854 .

obo:BTO_0002611 a rdfs:Class ;
  rdfs:label "axopodium" ;
  rdfs:comment "A long and slender, semipermanent type of locomotor pseudopodium that has a central axial filament composed of a bundle of microtubules." ;
  rdfs:subClassOf obo:BTO_0002610 .

obo:BTO_0004835 a rdfs:Class ;
  rdfs:label "inferior frontal gyrus" ;
  rdfs:comment "A gyrus of the frontal lobe of the human brain. Its superior border is the inferior frontal sulcus, its inferior border the lateral fissure, and its posterior border is the inferior precentral sulcus. Above it is the middle frontal gyrus, behind it the precentral gyrus." .

obo:BTO_0002538 a rdfs:Class ;
  rdfs:label "LLC-PK-1-GR101 cell" ;
  rdfs:comment "LLC-PK1 renal tubule cell line expressing the Rattus norvegicus glucocorticoid receptor GR." .

obo:BTO_0006322 a rdfs:Class ;
  rdfs:label "Jump-In-T-REx HEK293 cell" ;
  rdfs:comment "T-REx cell derivative generated by genomic integration of an R4 acceptor site and a promoterless Geneticin antibiotic resistance gene using the Jump-In Cell Engineering Technology." .

obo:BTO_0002983 a rdfs:Class ;
  rdfs:label "anaplastic oligodendroglioma cell" ;
  rdfs:comment "There are two types of oligodendroglioma: the well-differentiated tumor, which grows relatively slowly and in a defined shape; and the anaplastic oligodendroglioma, which grows much more rapidly and does not have a well-defined shape. Anaplastic oligodendrogliomas are much less common than well-differentiated oligodendrogliomas." ;
  rdfs:subClassOf obo:BTO_0000963 .

obo:BTO_0006284 a rdfs:Class ;
  rdfs:label "root nodule cortex" .

obo:BTO_0005576 a rdfs:Class ;
  rdfs:label "inguinal canal" ;
  rdfs:comment "A passage about one and one half inches (4 cm) long that lies parallel to and a half inch above the inguinal ligament. In the male it is the passage through which the testis descends into the scrotum and in which the spermatic cord lies - called also spermatic canal. In the female the passage is accommodating the round ligament." .

obo:BTO_0005767 a rdfs:Class ;
  rdfs:label "buccal gland" ;
  rdfs:comment "Any of the small racemose mucous glands in the mucous membrane lining the cheeks." .

obo:BTO_0005328 a rdfs:Class ;
  rdfs:label "culture condition:methylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005230 a rdfs:Class ;
  rdfs:label "stem juice" ;
  rdfs:comment "The stem juice of Musa paradisiaca L. is used in traditional medical practice in Ghana to arrest bleeding from wound. The outer green part of the stem was peeled off and its white inner portion was cut into small pieces (500g). The pieces were crushed mechanically and the juice about 300mL was extracted." .

obo:BTO_0006100 a rdfs:Class ;
  rdfs:label "plant protocorm" ;
  rdfs:comment "A tuber structure that develops from the embryos of lycopods (Lycopodiaceae) and orchids (Orchidaceae)." .

obo:BTO_0004904 a rdfs:Class ;
  rdfs:label "hair follicle bulge" ;
  rdfs:comment "The bulge is located in the outer root sheath at the insertion point of the arrector pili muscle. It houses several types of stem cells, which supply the entire hair follicle with new cells, and take part in healing the epidermis after a wound." .

obo:BTO_0001888 a rdfs:Class ;
  rdfs:label "follicular thyroid cancer cell" ;
  rdfs:subClassOf obo:BTO_0000196 .

obo:BTO_0003698 a rdfs:Class ;
  rdfs:label "coronary atherosclerotic plaque" ;
  rdfs:subClassOf obo:BTO_0003120 .

obo:BTO_0001258 a rdfs:Class ;
  rdfs:label "small intestine epithelium" ;
  rdfs:subClassOf obo:BTO_0000651 , obo:BTO_0000781 .

obo:BTO_0000572 a rdfs:Class ;
  rdfs:label "hemolymph" ;
  rdfs:comment "The circulatory fluid of various invertebrate animals that is functionally comparable to the blood and lymph of vertebrates." .

obo:BTO_0000096 a rdfs:Class ;
  rdfs:label "urinary bladder cell line" .

obo:BTO_0004283 a rdfs:Class ;
  rdfs:label "TK-10 cell" ;
  rdfs:comment "TK-10 was derived from a specimen of primary RCC obtained following a left radical nephrectomy in a 43-year-old male on August 21, 1980." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0003571 a rdfs:Class ;
  rdfs:label "HL-60/MX-2 cell" ;
  rdfs:comment "Acute promyelocytic leukemia resistant to mitoxantrone." .

obo:BTO_0001408 a rdfs:Class ;
  rdfs:label "locus ceruleus" .

obo:BTO_0000778 a rdfs:Class ;
  rdfs:label "pulmonary artery" ;
  rdfs:comment "An artery that conveys venous blood from the heart to the lungs." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0004034 a rdfs:Class ;
  rdfs:label "A-224 cell" ;
  rdfs:comment "Human gynecologic ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0006382 a rdfs:Class ;
  rdfs:label "CH12F3-2A cell" ;
  rdfs:comment "Mouse B cell lymphoma cell line." .

obo:BTO_0000574 a rdfs:Class ;
  rdfs:label "hematopoietic cell" ;
  rdfs:comment "A blood cell." .

obo:BTO_0002766 a rdfs:Class ;
  rdfs:label "PC6-15 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0005730 a rdfs:Class ;
  rdfs:label "culture condition:chitin-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002130 a rdfs:Class ;
  rdfs:label "SK-MEL cell" ;
  rdfs:comment "Human metastatic melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003171 a rdfs:Class ;
  rdfs:label "CCD-841-CoN cell" ;
  rdfs:comment "Human normal colonic cell line, established from a 21 weeks gestation female fetus." ;
  rdfs:subClassOf obo:BTO_0000188 .

obo:BTO_0002062 a rdfs:Class ;
  rdfs:label "B-lymphoblastoid cell line" ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0001041 a rdfs:Class ;
  rdfs:label "petiole" ;
  rdfs:comment "A slender stem that supports the blade of a foliage leaf." .

obo:BTO_0004164 a rdfs:Class ;
  rdfs:label "MDA-MB-435HGF cell" ;
  rdfs:comment "MDA-MB-435 transfected with hepatocyte growth factor (HGF)." .

obo:BTO_0001848 a rdfs:Class ;
  rdfs:label "urophysis" ;
  rdfs:comment "This is a neurosecretory organ found on the ventral aspect of the distal end of the spinal cord in fishes. These bodies are composed of unmyelinated axons terminating on a capillary wall. The function of the urophysis is unknown." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0005699 a rdfs:Class ;
  rdfs:label "root epidermal cell" .

obo:BTO_0003839 a rdfs:Class ;
  rdfs:label "nucleus fastigii" ;
  rdfs:subClassOf obo:BTO_0003835 .

obo:BTO_0004523 a rdfs:Class ;
  rdfs:label "TM-3 cell" ;
  rdfs:comment "Mouse Leydig cell line." ;
  rdfs:subClassOf obo:BTO_0004522 .

obo:BTO_0004475 a rdfs:Class ;
  rdfs:label "MEL cell" ;
  rdfs:comment "Murine erythroleukemia cell line." .

obo:BTO_0000428 a rdfs:Class ;
  rdfs:label "culture condition:ethanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006151 a rdfs:Class ;
  rdfs:label "coral nubbin" ;
  rdfs:comment "Large coral colonies are fragmented into nubbins and attached to a substrate using Gorilla Glue. They are cultivated in open flow seawater tanks." ;
  rdfs:subClassOf obo:BTO_0001384 .

obo:BTO_0002752 a rdfs:Class ;
  rdfs:label "PC-6 cell" ;
  rdfs:comment "A subline of PC12. The cells grow as single isolated cells, and have a slow but good morphological response to NGF." .

obo:BTO_0005283 a rdfs:Class ;
  rdfs:label "TS-20 cell" ;
  rdfs:comment "Ts20 is a temperature-sensitive mutant cell line derived from BALB/3T3 cells that is blocked at a step in DNA synthesis involving chain elongation." .

obo:BTO_0002324 a rdfs:Class ;
  rdfs:label "merocrine gland" ;
  rdfs:comment "One in which the secretory cells maintain their integrity throughout the secretory cycle." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0004912 a rdfs:Class ;
  rdfs:label "culture condition:peptone-yeast extract-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005566 a rdfs:Class ;
  rdfs:label "epithelial lining fluid" ;
  rdfs:comment "Epithelial lining fluid forms a thin fluid layer that covers the mucosa of the alveoli, the small airways, and the large airways." .

obo:BTO_0000154 a rdfs:Class ;
  rdfs:label "BRL-3A cell" ;
  rdfs:comment "Rat liver cell line. Established from the buffalo strain of rattus norvegicus." .

obo:BTO_0003683 a rdfs:Class ;
  rdfs:label "I 9.2 cell" ;
  rdfs:comment "Jurkat T-derivative cell line." .

obo:BTO_0000926 a rdfs:Class ;
  rdfs:label "ophthalmic nerve" ;
  rdfs:comment "The one of the three major branches or divisions of the trigeminal nerve that supply sensory fibers to the lacrimal gland, eyelids, ciliary muscle, nose, forehead, and adjoining parts." .

obo:BTO_0005175 a rdfs:Class ;
  rdfs:label "Panc-02 cell" ;
  rdfs:comment "Pancreatic tumor cell line, which is syngeneic to C57BL/6 mice." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0003197 a rdfs:Class ;
  rdfs:label "SK-RC-29 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0004621 a rdfs:Class ;
  rdfs:label "OCI-AML5 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established from the peripheral blood of a 77-year-old man with acute myeloid leukemia." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0005250 a rdfs:Class ;
  rdfs:label "CNE-2 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0004683 a rdfs:Class ;
  rdfs:label "genital chamber" ;
  rdfs:comment "A copulatory invagination. In females, sometimes forms a tubular vagina that is often developed to form a bursa copulatrix. In males, a ventral invagination containing the phallic organs." .

obo:BTO_0000469 a rdfs:Class ;
  rdfs:label "flower" ;
  rdfs:comment "The reproductive structure of the anthophyta or angiosperms." .

obo:BTO_0003658 a rdfs:Class ;
  rdfs:label "tergal gland secretion" ;
  rdfs:comment "Tergal gland secretion contains phagostimulatory sugars and phospholipids that encourage females of the German cockroach feeding and arrest the female in a position favorable for mating to proceed." ;
  rdfs:subClassOf obo:BTO_0002979 .

obo:BTO_0002549 a rdfs:Class ;
  rdfs:label "A-2780 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0002379 a rdfs:Class ;
  rdfs:label "juvenile pilocytic astrocytoma cell" ;
  rdfs:comment "A pilocytic astrocytoma found in the cerebellum in children, one of the most common juvenile brain tumors; it grows slowly and has a low grade of malignancy." ;
  rdfs:subClassOf obo:BTO_0002378 .

obo:BTO_0002085 a rdfs:Class ;
  rdfs:label "chamber of the eye" ;
  rdfs:comment "One of the various spaces in the eyeball." .

obo:BTO_0005905 a rdfs:Class ;
  rdfs:label "EM-3 cell" ;
  rdfs:comment "Human chronic myeloid leukemia cell line in blast crisis; established from the bone marrow of  5-year-old Caucasian girl with Philadelphia chromosome positive chronic myeloid leukemia in second relapse in 1980, after bone marrow transplantation day +47; sister cell line of EM-2." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0003506 a rdfs:Class ;
  rdfs:label "SAF-1 cell" ;
  rdfs:comment "Gilt head seabream caudal fin cell line. It has been developed from the fin tissues of an adult gilt-head seabream (sparius aurata) without immortalising treatments." ;
  rdfs:subClassOf obo:BTO_0003507 .

obo:BTO_0003007 a rdfs:Class ;
  rdfs:label "NCI-H322 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0000648 a rdfs:Class ;
  rdfs:label "intestine" ;
  rdfs:comment "The tubular part of the alimentary canal that extends from the stomach to the anus." .

obo:BTO_0004976 a rdfs:Class ;
  rdfs:label "tongue cancer cell" ;
  rdfs:comment "Malignancy of the tongue, squamous cell carcinoma of the tongue." .

obo:BTO_0000338 a rdfs:Class ;
  rdfs:label "dental plaque" ;
  rdfs:comment "A soft, thin film of food debris, mucin, and dead epithelial cells deposited on the teeth, providing the medium for the growth of various bacteria. The main inorganic components are calcium and phosphorus, with small amounts of magnesium, potassium, and sodium; the organic matrix consists of polysaccharides, proteins, carbohydrates, lipids, and other components. Plaque plays an important etiologic role in the development of dental caries and periodontal and gingival diseases and provides the base for the development of materia alba; calcified plaque forms dental calculus." .

obo:BTO_0005112 a rdfs:Class ;
  rdfs:label "TRAMP-C1 cell" ;
  rdfs:comment "This cell line was derived in 1996 from a heterogeneous 32 week primary tumor in the prostate of a PB-Tag C57BL/6 (TRAMP) mouse." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005707 a rdfs:Class ;
  rdfs:label "HMEEC cell" ;
  rdfs:comment "Human middle ear epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0005708 .

obo:BTO_0002654 a rdfs:Class ;
  rdfs:label "hippocampal mossy fiber" ;
  rdfs:comment "Axons of certain cells in the dentate gyrus. They project to the polymorphic layer of the dentate gyrus and to the proximal dendrites of pyramidal cells of the hippocampus. These mossy fibers should not be confused with mossy fibers that are cerebellar afferents." .

obo:BTO_0005200 a rdfs:Class ;
  rdfs:label "brain microvessel endothelial cell" ;
  rdfs:subClassOf obo:BTO_0005201 .

obo:BTO_0005741 a rdfs:Class ;
  rdfs:label "lateral meristem" ;
  rdfs:comment "A meristem in vascular plants, such as the cambium, in which secondary growth occurs." ;
  rdfs:subClassOf obo:BTO_0000852 .

obo:BTO_0006339 a rdfs:Class ;
  rdfs:label "excretory pore cell" ;
  rdfs:comment "The pore cell is a specialized, transitional, epithelial cell. It encloses the ventral third of the duct and forms an adherens junction with the duct cell at the duct cell-pore cell junction." .

obo:BTO_0001545 a rdfs:Class ;
  rdfs:label "acute myeloid leukemia cell" ;
  rdfs:comment "Adult acute myeloid leukemia (AML) is a disease in which cancer (malignant) cells are found in the blood and bone marrow. More common in adults, the proliferating cells are of the myeloid hematopoietic series and the cells appearing in the blood are primitive granulocytes or monocytes." ;
  rdfs:subClassOf obo:BTO_0001056 .

obo:BTO_0003618 a rdfs:Class ;
  rdfs:label "HAP-1 cell" ;
  rdfs:comment "Rat microglial cell line." ;
  rdfs:subClassOf obo:BTO_0003349 .

obo:BTO_0000525 a rdfs:Class ;
  rdfs:label "A-875 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001809 a rdfs:Class ;
  rdfs:label "scalp" ;
  rdfs:comment "The part of the integument of the human head usually covered with hair in both sexes or the part of an animal (as a wolf or fox) corresponding to the human scalp." .

obo:BTO_0001160 a rdfs:Class ;
  rdfs:label "red bone marrow" ;
  rdfs:comment "Marrow of developing bone, of the ribs, vertebrae, and many of the smaller bones; it is the site of production of erythrocytes and granular leukocytes." ;
  rdfs:subClassOf obo:BTO_0000141 , obo:BTO_0004850 .

obo:BTO_0000129 a rdfs:Class ;
  rdfs:label "basophil" ;
  rdfs:comment "Mammalian granulocyte with large heterochromatic basophilic granules that contain histamine bound to a protein and heparin-like mucopolysaccharide matrix. They are not phagocytic. Very similar to mast cells though it is not clear whether they have common lineage." ;
  rdfs:subClassOf obo:BTO_0000539 .

obo:BTO_0000486 a rdfs:Class ;
  rdfs:label "fruit" ;
  rdfs:comment "The mature ovary or ovaries of a seed-bearing plant, together with accessory parts, containing the seeds and occurring in a wide variety of forms." .

obo:BTO_0003791 a rdfs:Class ;
  rdfs:label "glandular stomach" ;
  rdfs:comment "Stomach found in horses; includes cardiac, proper gastric and pyloric glandular zones." ;
  rdfs:subClassOf obo:BTO_0001307 .

obo:BTO_0001664 a rdfs:Class ;
  rdfs:label "hepatoblastoma cell line" ;
  rdfs:comment "Hepatoblastoma is an uncommon malignant liver cancer occurring in infants and children and composed of tissue resembling fetal liver cells, mature liver cells, or bile duct cells. They usually present with an abdominal mass." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006369 a rdfs:Class ;
  rdfs:label "PC-3ML cell" ;
  rdfs:comment "PC-3ML are highly metastatic sublines isolated from PC-3 cells." .

obo:BTO_0005277 a rdfs:Class ;
  rdfs:label "CAG cell" ;
  rdfs:comment "CAG cell line; established from a bone marrow aspirate of a patient with myeloma." ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0003186 a rdfs:Class ;
  rdfs:label "NHM cell" ;
  rdfs:comment "Normal human melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0000046 a rdfs:Class ;
  rdfs:label "Y-1 cell" ;
  rdfs:comment "Mouse adrenal cortex tumor. Mouse, LAF1 male; Tissue: adrenal cortex; Tumor: adrenal tumor." ;
  rdfs:subClassOf obo:BTO_0000851 .

obo:BTO_0005396 a rdfs:Class ;
  rdfs:label "SK-MG-1 cell" ;
  rdfs:comment "Human glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0005461 a rdfs:Class ;
  rdfs:label "HBE135-E6E7 cell" ;
  rdfs:comment "The cell line was derived from normal bronchial epithelium taken from a man undergoing lobectomy for squamous cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0004456 a rdfs:Class ;
  rdfs:label "LN-215 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004170 a rdfs:Class ;
  rdfs:label "MHCC97-L cell" ;
  rdfs:comment "Clone of MHCC97 with low metastatic potential." .

obo:BTO_0003427 a rdfs:Class ;
  rdfs:label "Barrett's esophagus" ;
  rdfs:comment "Metaplasia of the lower esophagus that is characterized by replacement of squamous epithelium with columnar epithelium, occurs especially as a result of chronic gastroesophageal reflux, and is associated with an increased risk for esophageal carcinoma." .

obo:BTO_0002078 a rdfs:Class ;
  rdfs:label "hepatic osteomalacia cell" ;
  rdfs:comment "Osteomalacia as a complication of cholestatic liver disease, which may lead to severe bone pain and multiple fractures." ;
  rdfs:subClassOf obo:BTO_0002076 .

obo:BTO_0000440 a rdfs:Class ;
  rdfs:label "feces" ;
  rdfs:comment "Waste matter discharged from the body; especially: waste (as feces) discharged from the alimentary canal." .

obo:BTO_0001966 a rdfs:Class ;
  rdfs:label "cervical cell line" .

obo:BTO_0002710 a rdfs:Class ;
  rdfs:label "UM-SCC-14B cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0006461 a rdfs:Class ;
  rdfs:label "KMS-26 cell" ;
  rdfs:comment "Human myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0003283 a rdfs:Class ;
  rdfs:label "SC-M1 cell" ;
  rdfs:comment "The EBV negative SCM1 cell line was originally derived from the gastric specimen of a patient with poorly differentiated tubular adenocarcinoma of the stomach." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0005835 a rdfs:Class ;
  rdfs:label "granuloma cell" ;
  rdfs:comment "An imprecise term applied to 1: any small nodular, delimited aggregation of mononuclear inflammatory cells, or 2: a similar collection of modified macrophages resembling epithelial cells, usually surrounded by a rim of lymphocytes, often with multinucleated giant cells." .

obo:BTO_0005688 a rdfs:Class ;
  rdfs:label "shoot apical meristem" ;
  rdfs:comment "The tissue that produces all aerial parts of the plant, which include the stem as well as lateral structures, such as leaves and flowers." ;
  rdfs:subClassOf obo:BTO_0000034 .

obo:BTO_0002148 a rdfs:Class ;
  rdfs:label "gas bladder" ;
  rdfs:comment "A thin membranous, sometimes alveolated sac in the dorsal portion of the abdominal cavity. Contains a varying mixture of gases, not identical to the composition of air. May be one, two or three chambered. May be connected to the gut by a tube, the ductus pneumaticus (then called physostomous) or unconnected (then called physoclistous). May function as one or more of:- hydrostatic organ, sound producing organ, sound receptor, respiratory organ. Found in Actinopterygii. Often lacking in bottom fishes." ;
  rdfs:subClassOf obo:BTO_0000123 .

obo:BTO_0002170 a rdfs:Class ;
  rdfs:label "LOX cell" ;
  rdfs:comment "Human amelanotic malignant melanoma cell line." .

obo:BTO_0006227 a rdfs:Class ;
  rdfs:label "RERF-LC-AI cell" ;
  rdfs:comment "Human lung squamous cell carcinoma cell line, established from a japanese male." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0002458 a rdfs:Class ;
  rdfs:label "rhomboid nucleus" ;
  rdfs:comment "One of the median nuclei of the thalamus, bordering the third ventricle and ventral to the central medial nucleus." ;
  rdfs:subClassOf obo:BTO_0002454 .

obo:BTO_0004536 a rdfs:Class ;
  rdfs:label "medullary collecting duct" ;
  rdfs:comment "Medullary collecting ducts are divided into outer and inner segments, the latter reaching more deeply into the medulla. The variable reabsorption of water and, depending on fluid balances and hormonal influences, the reabsorption or secretion of sodium, potassium, hydrogen and bicarbonate ion continues here." .

obo:BTO_0003867 a rdfs:Class ;
  rdfs:label "deutocerebrum" ;
  rdfs:comment "The median lobes of the brain of an insect." .

obo:BTO_0001079 a rdfs:Class ;
  rdfs:label "trophoblast" ;
  rdfs:comment "A thin layer of ectoderm that forms the wall of many mammalian blastulas and functions in the nutrition and implantation of the embryo." .

obo:BTO_0002318 a rdfs:Class ;
  rdfs:label "fast muscle" ;
  rdfs:comment "The paler-colored muscle tissue of some mammals, composed of fast twitch muscle fibers." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0001639 a rdfs:Class ;
  rdfs:label "bud" ;
  rdfs:comment "Any small part of the embryo or adult metazoon more or less resembling the bud of a plant and presumed to have potential for growth and differentiation." .

obo:BTO_0004571 a rdfs:Class ;
  rdfs:label "L3.3 cell" ;
  rdfs:comment "Human pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0002339 a rdfs:Class ;
  rdfs:label "culture condition:fluoride-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000898 a rdfs:Class ;
  rdfs:label "myeloma cell" ;
  rdfs:comment "A primary tumor cell of the bone marrow." ;
  rdfs:subClassOf obo:BTO_0000583 .

obo:BTO_0005407 a rdfs:Class ;
  rdfs:label "culture condition:4-methylsalicylate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005339 a rdfs:Class ;
  rdfs:label "Ma-Mel-11 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002648 a rdfs:Class ;
  rdfs:label "ROS-17/2.8 cell" ;
  rdfs:comment "Osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0001116 a rdfs:Class ;
  rdfs:label "floral primordium" ;
  rdfs:comment "Immediately next to the growing inflorescence tip is the floral primordium, which is a bump of cells representing the very youngest stage of a flower." ;
  rdfs:subClassOf obo:BTO_0005525 .

obo:BTO_0006311 a rdfs:Class ;
  rdfs:label "WI38-VA13 cell" ;
  rdfs:comment "Normal human lung fibroblast cell line." .

obo:BTO_0002788 a rdfs:Class ;
  rdfs:label "mucinous adenocarcinoma cell" ;
  rdfs:comment "An adenocarcinoma that produces mucin in significant amounts." ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0005598 a rdfs:Class ;
  rdfs:label "peritubular contractile cell" ;
  rdfs:comment "Any of various flattened cells that surround seminiferous tubules." .

obo:BTO_0004073 a rdfs:Class ;
  rdfs:label "CSM14.1 cell" ;
  rdfs:comment "Immortalized rat neuronal cell line." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0004493 a rdfs:Class ;
  rdfs:label "gastric epithelium cell line" ;
  rdfs:subClassOf obo:BTO_0001088 , obo:BTO_0001120 .

obo:BTO_0004266 a rdfs:Class ;
  rdfs:label "H-10 cell" ;
  rdfs:comment "Immortalized neonatal rat cardiomyocytes." ;
  rdfs:subClassOf obo:BTO_0003324 .

obo:BTO_0001531 a rdfs:Class ;
  rdfs:label "glial cell line" ;
  rdfs:subClassOf obo:BTO_0000255 .

obo:BTO_0002527 a rdfs:Class ;
  rdfs:label "HBL-5 cell" ;
  rdfs:comment "Human Burkitt's lymphoma cell lines HBL-5 was established from a patient with small noncleaved cell lymphoma (Burkitt's type). The HBL-5 cell line is Epstein-Barr virus (EBV)-positive." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0003841 a rdfs:Class ;
  rdfs:label "plant organ culture" ;
  rdfs:comment "The culture of excised organs in a suitable aseptic medium. Roots, leaves, embryos, meristems, and many other plant structures have been successfully maintained in culture. For example, chemical factors affecting sex expression have been studied using cultures of isolated flowers, and root nodule formation has been investigated in cultures of legume roots." ;
  rdfs:subClassOf obo:BTO_0003916 .

obo:BTO_0000673 a rdfs:Class ;
  rdfs:label "metencephalon" ;
  rdfs:comment "The anterior segment of the developing vertebrate hindbrain or the corresponding part of the adult brain composed of the cerebellum and pons." .

obo:BTO_0005912 a rdfs:Class ;
  rdfs:label "LP-1 cell" ;
  rdfs:comment "Human multiple myeloma cell line; established from the peripheral blood of a 56-year-old woman with multiple myeloma in leukemic transformation in 1986." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0001592 a rdfs:Class ;
  rdfs:label "meniscus" ;
  rdfs:comment "A fibrous cartilage within a joint especially of the knee." ;
  rdfs:subClassOf obo:BTO_0000206 .

obo:BTO_0005718 a rdfs:Class ;
  rdfs:label "Mel-JD cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004785 a rdfs:Class ;
  rdfs:label "Ewing's sarcoma family tumor cell line" ;
  rdfs:comment "Ewing sarcoma family of tumors (ESFT) belong to the group of neoplasms commonly referred to as small, round, blue-cell tumors of childhood." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0005193 a rdfs:Class ;
  rdfs:label "H4TG cell" ;
  rdfs:comment "This line is a derivative of the H4-II-E-C3 rat hepatoma cell line." .

obo:BTO_0005875 a rdfs:Class ;
  rdfs:label "KMS-11/NTKO cell" ;
  rdfs:comment "KMS-11 cell line knocked out for the MMSET, the multiple myeloma SET domain containing protein on the non-translocated allele, NTKO." .

obo:BTO_0006296 a rdfs:Class ;
  rdfs:label "celiac ganglion" ;
  rdfs:comment "Either of a pair of collateral sympathetic ganglia that are the largest of the autonomic nervous system and lie one on each side of the celiac artery near the adrenal gland on the same side." ;
  rdfs:subClassOf obo:BTO_0001333 .

obo:BTO_0003084 a rdfs:Class ;
  rdfs:label "vaginal fluid" ;
  rdfs:comment "The lubrication fluid contains water, pyridine, squalene, urea, acetic acid, lactic acid, complex alcohols and glycols, ketones, and aldehydes. The fluid is typically clear and more resembling of male pre-ejaculate than male ejaculate. The normal pH of vaginal fluid is between 3.8 and 4.5, whereas male semen is typically between 7.1 and 8." ;
  rdfs:subClassOf obo:BTO_0003632 .

obo:BTO_0000176 a rdfs:Class ;
  rdfs:label "carcinoma cell" ;
  rdfs:comment "A cell of malignant new growth made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases." ;
  rdfs:subClassOf obo:BTO_0000415 .

obo:BTO_0001416 a rdfs:Class ;
  rdfs:label "umbilical vein endothelium" ;
  rdfs:subClassOf obo:BTO_0000393 .

obo:BTO_0005701 a rdfs:Class ;
  rdfs:label "culture condition:carbon disulfide-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006567 a rdfs:Class ;
  rdfs:label "neuromuscular system" ;
  rdfs:comment "The muscles of the body together with the nerves supplying them." ;
  rdfs:subClassOf obo:BTO_0001485 .

obo:BTO_0001135 a rdfs:Class ;
  rdfs:label "protoxylem" ;
  rdfs:comment "The first-formed xylem developing from procambium and consisting of narrow cells with annular, spiral, or scalariform wall thickenings." .

obo:BTO_0000327 a rdfs:Class ;
  rdfs:label "culture condition:D-mannose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005317 a rdfs:Class ;
  rdfs:label "CBRH-7919 cell" ;
  rdfs:comment "Rat hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0002275 a rdfs:Class ;
  rdfs:label "lateral hypodermal chord" ;
  rdfs:comment "Dorsal, ventral or lateral longitudinal thickenings of the hypodermis, generally internal." .

obo:BTO_0003931 a rdfs:Class ;
  rdfs:label "ARP-1 cell" ;
  rdfs:comment "Multiple myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0000552 a rdfs:Class ;
  rdfs:label "HaCaT cell" ;
  rdfs:comment "HaCaT is a spontaneously immortalized human keratinocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000375 .

obo:BTO_0001743 a rdfs:Class ;
  rdfs:label "jejunal epithelium" ;
  rdfs:subClassOf obo:BTO_0001258 .

obo:BTO_0006098 a rdfs:Class ;
  rdfs:label "root apical meristem" ;
  rdfs:comment "The collection of cells at the root tip that generate all the tissues of a plant root." ;
  rdfs:subClassOf obo:BTO_0000034 .

obo:BTO_0006004 a rdfs:Class ;
  rdfs:label "1228 cell" ;
  rdfs:comment "Human glioblastoma multiforme stem cell line, GSC." ;
  rdfs:subClassOf obo:BTO_0006001 .

obo:BTO_0001862 a rdfs:Class ;
  rdfs:label "nucleus accumbens" ;
  rdfs:comment "A nucleus forming the floor of the caudal part of the anterior prolongation of the lateral ventricle of the brain." .

obo:BTO_0005858 a rdfs:Class ;
  rdfs:label "root pericycle" ;
  rdfs:comment "The root vascular cylinder is interior to the endodermis and is surrounded by the pericycle, a layer of cells that gives rise to branch roots." .

obo:BTO_0005677 a rdfs:Class ;
  rdfs:label "BmN4-SID1 cell" ;
  rdfs:comment "Silkworm ovary-derived cell line, ectopically expressing Caenorhabditis elegans transmembrane protein SID-1, which functions as a channel for the transport of dsRNA." .

obo:BTO_0004149 a rdfs:Class ;
  rdfs:label "ischial spine" ;
  rdfs:comment "A bony process projecting backward and medialward from the posterior border of the ischium." .

obo:BTO_0003578 a rdfs:Class ;
  rdfs:label "gingival cell line" .

obo:BTO_0002067 a rdfs:Class ;
  rdfs:label "stinger" ;
  rdfs:comment "A sharp organ (as of a bee, scorpion, or stingray) that is usually connected with a poison gland or otherwise adapted to wound by piercing and injecting a poison." .

obo:BTO_0002600 a rdfs:Class ;
  rdfs:label "astrocyte cell line" ;
  rdfs:subClassOf obo:BTO_0001531 .

obo:BTO_0003881 a rdfs:Class ;
  rdfs:label "HSC-2 cell" ;
  rdfs:comment "Human oral squamous cell carcinoma cell line; established from a 69-years-old man." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0000839 a rdfs:Class ;
  rdfs:label "mesoderm" ;
  rdfs:comment "Middle of the three germ layers, gives rise to the musculoskeletal, blood, vascular and urinogenital systems, to connective tissue (including that of dermis) and contributes to some glands." ;
  rdfs:subClassOf obo:BTO_0000556 .

obo:BTO_0002346 a rdfs:Class ;
  rdfs:label "fibula" ;
  rdfs:comment "The outer and smaller of the two bones of the leg, which articulates proximally with the tibia and distally is joined to the tibia in a syndesmosis." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0002040 a rdfs:Class ;
  rdfs:label "KMST-6/T cell" ;
  rdfs:comment "Human embryonic fibroblast cell line; established from a 9-weeks-old embryo of Homo sapiens. KMS-6 was immortalized after extensive passages. Tumorigenic in nude mice." .

obo:BTO_0001708 a rdfs:Class ;
  rdfs:label "coelomic fluid" ;
  rdfs:comment "Coelomic fluid probably aids in oxygen transport and may contain some cells with hemoglobin." .

obo:BTO_0002357 a rdfs:Class ;
  rdfs:label "cuboid bone" ;
  rdfs:comment "The cuboid bone." ;
  rdfs:subClassOf obo:BTO_0002343 .

obo:BTO_0003445 a rdfs:Class ;
  rdfs:label "carotid atherosclerotic plaque" ;
  rdfs:comment "Cholesterol plaques on the inner wall of the carotid artery can lead to stroke." ;
  rdfs:subClassOf obo:BTO_0003120 .

obo:BTO_0003153 a rdfs:Class ;
  rdfs:label "perineurium" ;
  rdfs:comment "The connective-tissue sheath that surrounds a bundle of nerve fibers." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0004705 a rdfs:Class ;
  rdfs:label "connecting stalk" ;
  rdfs:comment "A bridge of mesoderm connecting the caudal end of the young embryo with the trophoblastic tissues; the precursor of the umbilical cord." ;
  rdfs:subClassOf obo:BTO_0000839 .

obo:BTO_0000028 a rdfs:Class ;
  rdfs:label "pancreatic acinar cell" ;
  rdfs:comment "Cells of the pancreas that secrete digestive enzymes, the archetypal secretory cell upon which much of the early work on the sequence of events in the secretory process was done." ;
  rdfs:subClassOf obo:BTO_0000433 .

obo:BTO_0002287 a rdfs:Class ;
  rdfs:label "POGRS-1 cell" ;
  rdfs:comment "Immortalized cell line of primary granulosa cells, isolated from 25-day-old immature rats and transfected with SV40 DNA and Ha-ras oncogene." ;
  rdfs:subClassOf obo:BTO_0002285 .

obo:BTO_0002994 a rdfs:Class ;
  rdfs:label "lacteal cyst" ;
  rdfs:comment "A cyst of the breast due to obstruction of a lactiferous duct." .

obo:BTO_0005186 a rdfs:Class ;
  rdfs:label "H4-APP751 cell" ;
  rdfs:comment "The H4 human neuroglioma cell line stably overexpressing human beta-amyloid precursor protein APP751." .

obo:BTO_0001520 a rdfs:Class ;
  rdfs:label "umbilical vein endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0001513 a rdfs:Class ;
  rdfs:label "biliary epithelium" ;
  rdfs:comment "Epithelium of the gallbladder and the intrahepatic and extrahepatic bile ducts." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000003 a rdfs:Class ;
  rdfs:label "intestinal cell line" .

obo:BTO_0003384 a rdfs:Class ;
  rdfs:label "small intestine adenoma cell" ;
  rdfs:subClassOf obo:BTO_0000178 .

obo:BTO_0005813 a rdfs:Class ;
  rdfs:label "pancreatic islet cell" .

obo:BTO_0004654 a rdfs:Class ;
  rdfs:label "Tet21N cell" ;
  rdfs:comment "Human neuroblastoma cell line." .

obo:BTO_0000623 a rdfs:Class ;
  rdfs:label "culture condition:2-butyne-1,4-diol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004374 a rdfs:Class ;
  rdfs:label "ventral posterior inferior nucleus" ;
  rdfs:subClassOf obo:BTO_0004373 .

obo:BTO_0003322 a rdfs:Class ;
  rdfs:label "HCC-2998 cell" ;
  rdfs:comment "HCC2998 is a highly differentiated human colon carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002834 a rdfs:Class ;
  rdfs:label "NB-1691 cell" ;
  rdfs:comment "Human neuroblastoma cell line, established from a previously treated patient." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0006162 a rdfs:Class ;
  rdfs:label "reproductive gland" ;
  rdfs:subClassOf obo:BTO_0000081 .

obo:BTO_0002264 a rdfs:Class ;
  rdfs:label "dried cell" ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0004056 a rdfs:Class ;
  rdfs:label "culture condition:lupanine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005587 a rdfs:Class ;
  rdfs:label "stalk cell" .

obo:BTO_0003034 a rdfs:Class ;
  rdfs:label "HELF cell" ;
  rdfs:comment "Human embryonic lung fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000161 , obo:BTO_0001958 .

obo:BTO_0005555 a rdfs:Class ;
  rdfs:label "basal prostate epithelium cell" ;
  rdfs:comment "Normal prostatic epithelium is composed of basal and luminal cells." .

obo:BTO_0000666 a rdfs:Class ;
  rdfs:label "LoVo cell" ;
  rdfs:comment "Human colon adenocarcinoma cell line, established from the metastatic nodule resected from a 56-year-old Caucasian man with colon adenocarcinoma in 1972." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0001063 a rdfs:Class ;
  rdfs:label "phrenic nerve" ;
  rdfs:comment "A general motor and sensory nerve on each side of the body that arises chiefly from the fourth cervical nerve, passes down through the thorax to the diaphragm, and supplies or gives off branches supplying especially the pericardium, pleura, and diaphragm." ;
  rdfs:subClassOf obo:BTO_0000925 .

obo:BTO_0001827 a rdfs:Class ;
  rdfs:label "tail fin" ;
  rdfs:comment "A fin at the posterior part of the body of a fish, crustacean, whale, or other aquatic animal." ;
  rdfs:subClassOf obo:BTO_0004649 .

obo:BTO_0004762 a rdfs:Class ;
  rdfs:label "TSM1 cell" ;
  rdfs:comment "Murine neocortical neuronal cell line." ;
  rdfs:subClassOf obo:BTO_0000947 .

obo:BTO_0005255 a rdfs:Class ;
  rdfs:label "RPMI-1788 cell" ;
  rdfs:comment "Human B-lymphocyte cell line." ;
  rdfs:subClassOf obo:BTO_0001522 .

obo:BTO_0001696 a rdfs:Class ;
  rdfs:label "archenteron" ;
  rdfs:comment "The cavity of a gastrula forming a primitive gut." .

obo:BTO_0004015 a rdfs:Class ;
  rdfs:label "HC11-C24 cell" ;
  rdfs:comment "Human mammary epithelial cell line over-expressing a xanthine oxidoreductase cDNA." .

obo:BTO_0005153 a rdfs:Class ;
  rdfs:label "CEM-VBL10 cell" ;
  rdfs:comment "The CEM-VBL10 cell line is a multidrug-resistant derivative of the drugsensitive CEM cell line obtained by selection in medium containing 10 ng/ml respectively of vinblastine." .

obo:BTO_0004773 a rdfs:Class ;
  rdfs:label "trophoblast stem cell line" ;
  rdfs:comment "Tanaka et al have reported that a culture of mouse blastocysts or early postimplantation trophoblasts in the presence of FGF-4 permits the isolation of permanent trophoblast stem cell lines." ;
  rdfs:subClassOf obo:BTO_0003420 .

obo:BTO_0002056 a rdfs:Class ;
  rdfs:label "siphon" ;
  rdfs:comment "Any of various tubular organs in animals and especially mollusks or arthropods that are used for drawing in or ejecting fluids." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0004643 a rdfs:Class ;
  rdfs:label "culture condition:1-naphthoic acid-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002582 a rdfs:Class ;
  rdfs:label "HFL-1 cell" ;
  rdfs:comment "Human lung fibroblast cell line; established from a caucasian fetus." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0003705 a rdfs:Class ;
  rdfs:label "cornu ammonis" ;
  rdfs:comment "One of the two interlocking gyri composing the hippocampus, the other being the dentate gyrus." .

obo:BTO_0004186 a rdfs:Class ;
  rdfs:label "DuPro cell" ;
  rdfs:comment "Androgen-insensitive human prostate cancer cell line." .

obo:BTO_0000600 a rdfs:Class ;
  rdfs:label "heterocyst" ;
  rdfs:comment "A large transparent thick-walled cell that is found in the filaments of some blue-green algae and is the site of nitrogen fixation." .

obo:BTO_0000312 a rdfs:Class ;
  rdfs:label "motoneuron" ;
  rdfs:comment "A neuron with a motor function; an efferent neuron conveying motor impulses." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0002224 a rdfs:Class ;
  rdfs:label "cheek pouch" ;
  rdfs:comment "A pocketlike fold of skin in the cheeks of various animals, such as squirrels, gophers, and monkeys, that functions as a means of carrying food." .

obo:BTO_0003004 a rdfs:Class ;
  rdfs:label "NCI-H1435 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004478 a rdfs:Class ;
  rdfs:label "mucosal melanoma cell" ;
  rdfs:comment "Mucosal melanoma is a rare cutaneous condition characterized by a melanoma of the mucous membranes." ;
  rdfs:subClassOf obo:BTO_0000848 .

obo:BTO_0002961 a rdfs:Class ;
  rdfs:label "STP-1 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006419 a rdfs:Class ;
  rdfs:label "FD105 cell" ;
  rdfs:comment "Human h-Tert immortalized AOA1 fibroblast cell line, derived from an individual with Ataxia with Oculomotor Apraxia type 1 (AOA1) and thus lacking aprataxin." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0004930 a rdfs:Class ;
  rdfs:label "RMG-I cell" ;
  rdfs:comment "Human tumor cell line from ovarian mesonephroid adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0003664 a rdfs:Class ;
  rdfs:label "nucleus preopticus" ;
  rdfs:comment "The nucleus preopticus (NPO) of the hypothalamus of common carp, is a homolog of the paraventricular nucleus of mammals." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0005261 a rdfs:Class ;
  rdfs:label "B-lymphoblast cell line" .

obo:BTO_0003524 a rdfs:Class ;
  rdfs:label "HSC-PQ cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0001308 a rdfs:Class ;
  rdfs:label "gastric mucosa" ;
  rdfs:comment "The mucous coat of the stomach." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0006314 a rdfs:Class ;
  rdfs:label "shell capitulum" ;
  rdfs:comment "Pedunculate, goose or goose-neck barnacles have a flexible, muscular stalk, known as the peduncle, which supports the main body known as the capitulum. In Pollicipes pollicipes the capitulum is triangular in nature and white-grey in colour. A number of plates of different sizes protect the capitulum, increasing to over 100 in number with age. The plates may reach up to 0.5 mm in length. Six pairs of thin, feather-like cirri can be seen to arise from within the mantle cavity and are used for feeding." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0002409 a rdfs:Class ;
  rdfs:label "NRK-49F cell" ;
  rdfs:comment "Rat kidney fibroblast cell line. Cell line was cloned from a mixed culture of normal rat kidney cells." .

obo:BTO_0002036 a rdfs:Class ;
  rdfs:label "U-87MG cell" ;
  rdfs:comment "Human, Caucasian, brain, glioblastoma-astrocytoma cell line Morphology: epithelial-like; Species: human, Caucasian female 44 years old; Tissue: brain; Tumor: glioblastoma-astrocytoma." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004961 a rdfs:Class ;
  rdfs:label "acute megakaryoblastic leukemia cell line" ;
  rdfs:comment "Acute megakaryoblastic leukemia is a form of leukemia where a majority of the blasts are megakaryoblastic." ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0006031 a rdfs:Class ;
  rdfs:label "HUASMC cell" ;
  rdfs:comment "Human umbilical artery smooth muscle cell line." ;
  rdfs:subClassOf obo:BTO_0001209 .

obo:BTO_0005101 a rdfs:Class ;
  rdfs:label "coronary artery smooth muscle cell" .

obo:BTO_0002817 a rdfs:Class ;
  rdfs:label "esophageal cancer cell line" ;
  rdfs:subClassOf obo:BTO_0003640 .

obo:BTO_0003856 a rdfs:Class ;
  rdfs:label "BON-1 cell" ;
  rdfs:comment "Human pancreatic neuroendocrine tumor cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0001945 a rdfs:Class ;
  rdfs:label "HUT-78 cell" ;
  rdfs:comment "Human, peripheral blood, cutaneous, T cell lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0003212 .

obo:BTO_0003329 a rdfs:Class ;
  rdfs:label "EMT-6 cell" ;
  rdfs:comment "EMT6 is a transplantable mouse mammary tumor cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0006216 a rdfs:Class ;
  rdfs:label "leaf epidermal cell" ;
  rdfs:comment "Any of the cells in a leaf making up the epidermis." .

obo:BTO_0001264 a rdfs:Class ;
  rdfs:label "spinal ganglion" ;
  rdfs:comment "A ganglion on the dorsal root of each spinal nerve that is one of a series of ganglia lodging cell bodies of sensory neurons." ;
  rdfs:subClassOf obo:BTO_0001123 .

obo:BTO_0003164 a rdfs:Class ;
  rdfs:label "cholangiocyte" ;
  rdfs:comment "The epithelial cell that lines the bile ducts; Biliary epithelial cells or cholangiocytes line a complex tree-like 3-dimensional network of conduits within the liver that form the biliary tract." .

obo:BTO_0004363 a rdfs:Class ;
  rdfs:label "gastroesophageal adenocarcinoma cell" ;
  rdfs:comment "Adenocarcinoma, pertaining to both the stomach and the esophagus, as in the gastroesophageal junction, the place where the esophagus connects to the stomach." ;
  rdfs:subClassOf obo:BTO_0000604 , obo:BTO_0004365 .

obo:BTO_0006477 a rdfs:Class ;
  rdfs:label "T37i cell" ;
  rdfs:comment "Mouse brown adipocyte cell line; derived from a hibernoma (malignant brown fat tumor) of a transgenic mouse carrying a hybrid gene composed of the human MR proximal promoter linked to the SV40 large T antigen." ;
  rdfs:subClassOf obo:BTO_0003452 .

obo:BTO_0003456 a rdfs:Class ;
  rdfs:label "basophilic myelocyte" ;
  rdfs:comment "Myelocytes are further distinguished according to the type of granules that develop, i.e., neutrophilic myelocyte (60%), eosinophilic myelocyte, basophilic myelocyte (3%)." ;
  rdfs:subClassOf obo:BTO_0000734 .

obo:BTO_0000063 a rdfs:Class ;
  rdfs:label "culture condition:ammonium malate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005334 a rdfs:Class ;
  rdfs:label "UKRV-Mel-4 cell" ;
  rdfs:comment "Human malignant melanoma cell line, established from liver." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004107 a rdfs:Class ;
  rdfs:label "antral mucosa" ;
  rdfs:comment "Pyloric gland mucosa of the stomach." .

obo:BTO_0000451 a rdfs:Class ;
  rdfs:label "fibrillar flight muscle" ;
  rdfs:comment "Insect flight muscle responsible for indirect flight. A single nerve impulse results in many cycles of flight muscle contraction and relaxation." ;
  rdfs:subClassOf obo:BTO_0000467 .

obo:BTO_0002902 a rdfs:Class ;
  rdfs:label "NC14.9.1 cell" ;
  rdfs:comment "Murine neural crest-derived cell line generated from infection of mouse neural crest cultures with retroviruses containing the c-myc or the N-myc proto-oncogenes." ;
  rdfs:subClassOf obo:BTO_0002901 .

obo:BTO_0003045 a rdfs:Class ;
  rdfs:label "neuroma cell" ;
  rdfs:comment "A tumor growing from a nerve or made up largely of nerve cells and nerve fibers." .

obo:BTO_0000352 a rdfs:Class ;
  rdfs:label "culture condition:DL-mandelate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002929 a rdfs:Class ;
  rdfs:label "adult liver stem cell line" ;
  rdfs:subClassOf obo:BTO_0002928 .

obo:BTO_0004197 a rdfs:Class ;
  rdfs:label "insect labellum" ;
  rdfs:comment "A terminal part of the labium or labrum of various insects." .

obo:BTO_0005637 a rdfs:Class ;
  rdfs:label "Idiopathic pulmonary fibrosis disease specific cell type" ;
  rdfs:comment "Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial lung disease of unknown etiology characterized by an accumulation of extracellular matrix, resulting in impaired pulmonary function." ;
  rdfs:subClassOf obo:BTO_0005577 .

obo:BTO_0004770 a rdfs:Class ;
  rdfs:label "TAD-2 cell" ;
  rdfs:comment "Immortalized normal thyroid cell line." ;
  rdfs:subClassOf obo:BTO_0001876 .

obo:BTO_0000379 a rdfs:Class ;
  rdfs:label "embryo" ;
  rdfs:comment "An animal in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems; especially: the developing human individual from the time of implantation to the end of the eighth week after conception." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0000104 a rdfs:Class ;
  rdfs:label "lymphoma cell line" ;
  rdfs:comment "Lymphoma means any neoplastic disorder of the lymphoid tissue." .

obo:BTO_0001642 a rdfs:Class ;
  rdfs:label "liver bud" ;
  rdfs:comment "A diverticulum from the foregut that gives rise to the liver and its ducts." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0003485 a rdfs:Class ;
  rdfs:label "RPAEC cell" ;
  rdfs:comment "Rat pulmonary artery endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003150 .

obo:BTO_0002091 a rdfs:Class ;
  rdfs:label "exophytic retinoblastoma cell" ;
  rdfs:comment "A retinoblastoma that begins in the outer layers of the retina and spreads away from the center of the globe." ;
  rdfs:subClassOf obo:BTO_0001178 .

obo:BTO_0000887 a rdfs:Class ;
  rdfs:label "muscle" ;
  rdfs:comment "A body tissue consisting of long cells that contract when stimulated and produce motion." ;
  rdfs:subClassOf obo:BTO_0001485 .

obo:BTO_0001441 a rdfs:Class ;
  rdfs:label "marrow cell" ;
  rdfs:comment "Any of the immature blood cells that develop in the bone marrow, such as those involved in hematopoiesis." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0002126 a rdfs:Class ;
  rdfs:label "U-373MG cell" ;
  rdfs:comment "Human caucasian glioblastoma/astrocytoma cell line; established from a 61-years-old caucasian male." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0003679 a rdfs:Class ;
  rdfs:label "MRK-nu-1 cell" ;
  rdfs:comment "Human mammary gland carcinoma cell line, established from a 46 years old female." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002842 a rdfs:Class ;
  rdfs:label "cholangioma cell" ;
  rdfs:comment "A rare type of hepatocellular carcinoma arising from the cholangioles, composed of tumor cells resembling the epithelial cells of the cholangioles arranged in cords consisting of two layers of cells surrounding a minute lumen." ;
  rdfs:subClassOf obo:BTO_0000608 .

obo:BTO_0005052 a rdfs:Class ;
  rdfs:label "L88/5 cell" ;
  rdfs:comment "L87/4 and L88/5 are two permanent SV40- transformed human stroma cell lines derived from the bone marrow of a hematologically normal male patient." ;
  rdfs:subClassOf obo:BTO_0003296 .

obo:BTO_0004441 a rdfs:Class ;
  rdfs:label "UT-SCC-15 cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004438 .

obo:BTO_0002745 a rdfs:Class ;
  rdfs:label "CAPAN-2 cell" ;
  rdfs:comment "Human pancreas adenocarcinoma cell line; established from the tumor of a 56-year-old Caucasian man with pancreas adenocarcinoma in 1975." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0001822 a rdfs:Class ;
  rdfs:label "suprachiasmatic nucleus" ;
  rdfs:comment "A small group of neurons situated immediately dorsal to the optic chiasma in the anterior hypothalamus." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0003798 a rdfs:Class ;
  rdfs:label "multicellular trichome" ;
  rdfs:comment "Trichome that consists of several cells." ;
  rdfs:subClassOf obo:BTO_0001395 .

obo:BTO_0005190 a rdfs:Class ;
  rdfs:label "sarcomatoid carcinoma cell" ;
  rdfs:comment "Sarcomatoid carcinoma (SARC) of the lung is defined in the most recent World Health Organization classification as \"poorly differentiated non-small cell carcinoma that contains a component of sarcoma or sarcoma-like elements. SARC tumors often occur as part of a heterogeneous lung tumor, rather than a tumor consisting of a pure cell type, and most pathologic series classify lung cancer as SARC when at least 10% of the tumor is composed of a sarcomatoid element based on histologic appearance and tissue marker studies." ;
  rdfs:subClassOf obo:BTO_0002058 .

obo:BTO_0001319 a rdfs:Class ;
  rdfs:label "external plexiform layer" ;
  rdfs:comment "The external plexiform layer contains the passing dendrites of mitral cells and a few tufted cells, which are similar in size to mitral cells. Some of the granule cell dendrites in the plexiform layer contact mitral cell dendrites through a specialized dendrodendritic synapse, which also is termed a reciprocal synapse. Tufted cells also receive granule cell input through dendrodendritic and dendrosomatic contact." .

obo:BTO_0000751 a rdfs:Class ;
  rdfs:label "leukocyte" ;
  rdfs:comment "Any of the blood cells that are colorless, lack hemoglobin, contain a nucleus, and include the lymphocytes, monocytes, neutrophils, eosinophils, and basophils." ;
  rdfs:subClassOf obo:BTO_0000574 .

obo:BTO_0000215 a rdfs:Class ;
  rdfs:label "culture condition:galactonate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003318 a rdfs:Class ;
  rdfs:label "INS-1 823/13 cell" ;
  rdfs:comment "Subline of INS-1 rat insulinoma cell line with optimized glucose-sensitive insulin secretion." .

obo:BTO_0001776 a rdfs:Class ;
  rdfs:label "plant ovule" ;
  rdfs:comment "A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertilization." ;
  rdfs:subClassOf obo:BTO_0001226 .

obo:BTO_0004089 a rdfs:Class ;
  rdfs:label "male urethra" ;
  rdfs:comment "The tube through which urine leaves the body. It empties urine from the bladder." ;
  rdfs:subClassOf obo:BTO_0001426 , obo:BTO_0003097 .

obo:BTO_0000267 a rdfs:Class ;
  rdfs:label "cochlea" ;
  rdfs:comment "A division of the bony labyrinth of the inner ear of higher vertebrates that is usually coiled like a snail shell and is the seat of the hearing organ." .

obo:BTO_0001855 a rdfs:Class ;
  rdfs:label "venom duct" ;
  rdfs:comment "One of the paired, internal tubes leading from the venom glands to the paired openings near the tip of the aculeus." .

obo:BTO_0005381 a rdfs:Class ;
  rdfs:label "Rh-4 cell" ;
  rdfs:comment "Human alveolar rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0004377 a rdfs:Class ;
  rdfs:label "pup" ;
  rdfs:comment "One of the young of various animals; as a seal or rat or a dog." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0000308 a rdfs:Class ;
  rdfs:label "cytotoxic T-lymphocyte cell line" ;
  rdfs:subClassOf obo:BTO_0001045 .

obo:BTO_0001833 a rdfs:Class ;
  rdfs:label "parasympathetic nervous system" ;
  rdfs:comment "One of the two divisions of the vertebrate autonomic nervous system. Parasympathetic nerves emerge cranially as pre-ganglionic fibres from oculomotor, facial, glossopharyngeal and vagus, and from the sacral region of the spinal cord. Most neurons are cholinergic and responses are mediated by muscarinic acetylcholine receptors. The parasympathetic system innervates, for example, salivary glands, thoracic and abdominal viscera, bladder and genitalia." ;
  rdfs:subClassOf obo:BTO_0001028 .

obo:BTO_0006325 a rdfs:Class ;
  rdfs:label "culture condition:chlorobenzene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002979 a rdfs:Class ;
  rdfs:label "secretion" ;
  rdfs:comment "Material that is secreted as a result of the activity of a gland; this activity may range from separating a specific substance of the blood to the elaboration of a new chemical substance." .

obo:BTO_0001422 a rdfs:Class ;
  rdfs:label "uterine endometrium" ;
  rdfs:comment "The mucous membrane lining the uterus." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0000599 a rdfs:Class ;
  rdfs:label "Hep-G2 cell" ;
  rdfs:comment "Human hepatocellular carcinoma, established from the tumor tissue of a 15-year-old argentine boy with hepatocellular carcinoma in 1975." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0002730 a rdfs:Class ;
  rdfs:label "uterine serous carcinoma cell" ;
  rdfs:comment "Uterine serous carcinoma is an uncommon form of endometrial cancer that typically arises in postmenopausal women." ;
  rdfs:subClassOf obo:BTO_0000257 .

obo:BTO_0005442 a rdfs:Class ;
  rdfs:label "SBC-1 cell" ;
  rdfs:comment "Human small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0001376 a rdfs:Class ;
  rdfs:label "thigh" ;
  rdfs:comment "1: The proximal segment of the vertebrate hind limb extending from the hip to the knee and supported by a single large bone. 2: The segment of the leg immediately distal to the thigh in a bird or in a quadruped in which the true thigh is obscured." .

obo:BTO_0002205 a rdfs:Class ;
  rdfs:label "large cell lung cancer cell line" ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0004276 a rdfs:Class ;
  rdfs:label "SM-7 cell" ;
  rdfs:comment "Murine thymic lymphoma cell line; established from p53 deleted knockout mice." ;
  rdfs:subClassOf obo:BTO_0001377 .

obo:BTO_0006059 a rdfs:Class ;
  rdfs:label "TE-03 cell" ;
  rdfs:comment "Human embryonic stem cell line from a female." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0003593 a rdfs:Class ;
  rdfs:label "schizozoite" ;
  rdfs:comment "A merozoite prior to schizogony, as in the exoerythrocytic phase of the development of the Plasmodium agent after sporozoite invasion of the hepatocyte and before multiple division." ;
  rdfs:subClassOf obo:BTO_0002272 .

obo:BTO_0002535 a rdfs:Class ;
  rdfs:label "Morris hepatoma 7800C1 cell" ;
  rdfs:comment "A Wistar rat cell line." ;
  rdfs:subClassOf obo:BTO_0001080 .

obo:BTO_0006001 a rdfs:Class ;
  rdfs:label "GSC cell line" ;
  rdfs:comment "Glioblastome multiforme stem cell line." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0003298 a rdfs:Class ;
  rdfs:label "mesenchymal stem cell" ;
  rdfs:comment "A special adult stem cell, which is a multipotent stem cell, that can be found in bone marrow and can produce all cell types of bone, cartilage, fat, blood, and connective tissues." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0006494 a rdfs:Class ;
  rdfs:label "fibromyxosarcoma cell" ;
  rdfs:comment "A sarcoma containing fibrous and myxoid tissue." ;
  rdfs:subClassOf obo:BTO_0000459 .

obo:BTO_0001127 a rdfs:Class ;
  rdfs:label "primary culture" ;
  rdfs:comment "Freshly isolated cultures from mammalian tissues are known as primary cultures until sub-cultured. At this stage, cells are usually heterogeneous but still closely represent the parent cell types as well as in the expression of tissue specific properties. After several sub-cultures onto fresh media, the cell line will either die out or transform to become a continuous cell line. Such cell lines show many alterations from the primary cultures including change in morphology, chromosomal variation and increase in capacity to give rise to tumors in hosts with week immune systems." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0004482 a rdfs:Class ;
  rdfs:label "ovarian surface epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0004129 .

obo:BTO_0000767 a rdfs:Class ;
  rdfs:label "mesenteric lymph node" ;
  rdfs:comment "Nodes that lie at the root of the mesentery, receiving lymph from parts of the small intestine, cecum, appendix, and large intestine; they comprise three groups: the juxtaintestinal, central superior, and inferior mesenteric lymph nodes." ;
  rdfs:subClassOf obo:BTO_0000784 .

obo:BTO_0000088 a rdfs:Class ;
  rdfs:label "cardiovascular system" ;
  rdfs:comment "The system of heart and blood vessels." .

obo:BTO_0004745 a rdfs:Class ;
  rdfs:label "INA-6 cell" ;
  rdfs:comment "A human myeloma cell line established from patient with IgG-kappa plasma cell leukemia ." ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0001303 a rdfs:Class ;
  rdfs:label "stigma" ;
  rdfs:comment "The usually apical part of the pistil of a flower which receives the pollen grains and on which they germinate." .

obo:BTO_0000684 a rdfs:Class ;
  rdfs:label "Krebs II ascites cell" ;
  rdfs:subClassOf obo:BTO_0000683 .

obo:BTO_0004929 a rdfs:Class ;
  rdfs:label "RMG-II cell" ;
  rdfs:comment "Human ovarian mesonephroid adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0004603 a rdfs:Class ;
  rdfs:label "HBE cell" ;
  rdfs:comment "Human bronchial epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002022 .

obo:BTO_0001843 a rdfs:Class ;
  rdfs:label "cerebral ganglion" ;
  rdfs:comment "The cerebral ganglia are primarily sensual centres, that compute information from the eyes as well as from the tactile and position sensors (statocystes). Besides coordination they also serve the locational memory of a snail." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0003304 a rdfs:Class ;
  rdfs:label "MDA-1483 cell" ;
  rdfs:comment "Oral cavity cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002027 .

obo:BTO_0001736 a rdfs:Class ;
  rdfs:label "vascular cancer cell" .

obo:BTO_0004800 a rdfs:Class ;
  rdfs:label "amnioserosa" ;
  rdfs:comment "The amnioserosa is an extraembryonic, epithelial tissue that covers the dorsal side of the Drosophila embryo." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0004863 a rdfs:Class ;
  rdfs:label "HLCC cell" ;
  rdfs:comment "One of 29 HeLa cell clone (HLCC) lines." .

obo:BTO_0003942 a rdfs:Class ;
  rdfs:label "MDAH-2774 cell" ;
  rdfs:comment "Ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0001816 a rdfs:Class ;
  rdfs:label "stem nodule" ;
  rdfs:comment "Rhizobia interact symbiotically with leguminous plants by inducing nitrogen-fixing nodules on the roots. Some plants of the genus Aeschynomene, encountered in waterlogged soils or riverbanks, have the peculiar property of forming stem nodules. This very unusual behavior among leguminous plants is shared only with a few species of the genera Sesbania, Neptunia, and Discolobium." .

obo:BTO_0003553 a rdfs:Class ;
  rdfs:label "EJ-138 cell" ;
  rdfs:comment "Human bladder transitional cell carcinoma cell line." .

obo:BTO_0001393 a rdfs:Class ;
  rdfs:label "mesenchyme" ;
  rdfs:comment "The part of the embryonic mesoderm, consisting of loosely packed, unspecialized cells set in a gelatinous ground substance, from which connective tissue, bone, cartilage, and the circulatory and lymphatic systems develop." .

obo:BTO_0005454 a rdfs:Class ;
  rdfs:label "corpus cavernosum" ;
  rdfs:comment "Either of the columns of erectile tissue forming the body of the clitoris or penis." ;
  rdfs:subClassOf obo:BTO_0000081 .

obo:BTO_0003249 a rdfs:Class ;
  rdfs:label "brain endothelium cell line" ;
  rdfs:subClassOf obo:BTO_0000255 .

obo:BTO_0000507 a rdfs:Class ;
  rdfs:label "foregut" ;
  rdfs:comment "1: The anterior part of the embryonic alimentary canal of a vertebrate from which the pharynx, lungs, esophagus, stomach, liver, pancreas, and duodenum develop. 2: The first part of the alimentary canal of an arthropod or annelid, which includes the buccal cavity, esophagus, crop, and gizzard." .

obo:BTO_0006563 a rdfs:Class ;
  rdfs:label "RMA-S cell" ;
  rdfs:comment "TAP2 (Antigen peptide transporter 2)-deficient derivative of RMA mouse T-lymphoma cell line." .

obo:BTO_0003250 a rdfs:Class ;
  rdfs:label "colonic epithelium cell line" .

obo:BTO_0003474 a rdfs:Class ;
  rdfs:label "WM-239 cell" ;
  rdfs:comment "Human melanoma cell line, derived from skin metastasis." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005489 a rdfs:Class ;
  rdfs:label "MLO-Y4 cell" ;
  rdfs:comment "Murine long bone osteocyte cell line." ;
  rdfs:subClassOf obo:BTO_0005488 .

obo:BTO_0006150 a rdfs:Class ;
  rdfs:label "plasmablastic lymphoma cell" ;
  rdfs:comment "Plasmablastic lymphoma is a type of large B-cell lymphoma." ;
  rdfs:subClassOf obo:BTO_0001690 .

obo:BTO_0006064 a rdfs:Class ;
  rdfs:label "X-organ-sinus-gland complex" ;
  rdfs:comment "This comples lies in the eyestalk or in an equivalent part of the head in which the eyes are sessile." .

obo:BTO_0003419 a rdfs:Class ;
  rdfs:label "biceps brachii" ;
  rdfs:comment "Biceps of the arm." ;
  rdfs:subClassOf obo:BTO_0003178 .

obo:BTO_0004694 a rdfs:Class ;
  rdfs:label "rectal sac" ;
  rdfs:comment "The enlarged anterior part of the rectum, sometimes produced into a large rectal caecum." .

obo:BTO_0003744 a rdfs:Class ;
  rdfs:label "liposarcoma cell line" ;
  rdfs:comment "Cell line of a malignant tumor that arises in fat cells in deep soft tissue, such as that inside the thigh. Most frequent in middle-aged and older adults (age 40 and above), liposarcomas are the most common of all soft-tissue sarcomas." ;
  rdfs:subClassOf obo:BTO_0000400 .

obo:BTO_0001672 a rdfs:Class ;
  rdfs:label "Mel Ei cell" ;
  rdfs:comment "Cell line from a melanoma primary tumor." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003400 a rdfs:Class ;
  rdfs:label "hyperpallium" ;
  rdfs:comment "Birds have a unique pallial structure known as the hyperpallium, once called the hyperstriatum." .

obo:BTO_0002952 a rdfs:Class ;
  rdfs:label "Mel249 cell" ;
  rdfs:comment "Metastatic human melanoma, obtained from patients with no history of chemotherapy or immunotherapy by surgical removal." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006019 a rdfs:Class ;
  rdfs:label "CT26.CL25 cell" ;
  rdfs:comment "Lethal subclone of CT26.WT cell." .

obo:BTO_0000288 a rdfs:Class ;
  rdfs:label "corona" ;
  rdfs:comment "An appendage or series of united appendages on the inner side of the corolla in some flowers (as the daffodil, jonquil, or milkweed)." .

obo:BTO_0002488 a rdfs:Class ;
  rdfs:label "uterine leiomyosarcoma cell line" ;
  rdfs:subClassOf obo:BTO_0002595 .

obo:BTO_0002391 a rdfs:Class ;
  rdfs:label "U-1285dox cell" ;
  rdfs:comment "Doxorubicin-resistant cell line, U-1285dox, derived from human small cell carcinoma of the lung." .

obo:BTO_0003891 a rdfs:Class ;
  rdfs:label "JHU-011 cell" ;
  rdfs:comment "Human head and neck squamous cell carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0005259 a rdfs:Class ;
  rdfs:label "oropharyngeal carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000790 .

obo:BTO_0004503 a rdfs:Class ;
  rdfs:label "submerged culture" ;
  rdfs:comment "A method for growing pure cultures of aerobic bacteria in which microorganisms are incubated in a liquid medium subjected to continuous, vigorous agitation." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0002077 a rdfs:Class ;
  rdfs:label "oncogenic osteomalacia cell" ;
  rdfs:comment "A cell of osteomalacia occurring in association with usually benign mesenchymal neoplasms. The tumors appear to produce a substance that impairs renal tubular functions such as phosphate transport and hydroxylation of 25-hydroxyvitamin D; hypophosphatemia secondary to reduced renal resorption of phosphate is a major cause of the bone disease." ;
  rdfs:subClassOf obo:BTO_0002076 .

obo:BTO_0003772 a rdfs:Class ;
  rdfs:label "SF-268 cell" ;
  rdfs:comment "Human malignant CNS glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0005505 a rdfs:Class ;
  rdfs:label "fungal sporangiophore" ;
  rdfs:comment "A stalk or similar structure bearing sporangia in plants and fungi." .

obo:BTO_0004126 a rdfs:Class ;
  rdfs:label "Huh-7.5 cell" ;
  rdfs:comment "Human hepatoma cell line." .

obo:BTO_0002290 a rdfs:Class ;
  rdfs:label "primary cell line" .

obo:BTO_0003655 a rdfs:Class ;
  rdfs:label "thyroid cartilage" ;
  rdfs:comment "The largest cartilage of the larynx consisting of two laminae fusing anteriorly at an acute angle in the midline of the neck. The point of fusion forms a subcutaneous projection known as the adams apple." ;
  rdfs:subClassOf obo:BTO_0003660 .

obo:BTO_0002697 a rdfs:Class ;
  rdfs:label "supraoptic nucleus" ;
  rdfs:comment "A sharply defined nucleus of nerve cells in the anterior hypothalamic region, immediately above the lateral part of the optic chiasm; many of its cells are neurosecretory in function, secreting vasopressin, which is carried to the neurohypophysis (posterior pituitary) by the fibers of the supraopticohypophysial tract; other cells are osmoreceptors, which respond to increased osmotic pressure to signal the release of vasopressin by the neurohypophysis." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0000529 a rdfs:Class ;
  rdfs:label "C6 glioma cell" ;
  rdfs:comment "The glial cell strain, C6, was cloned from a rat glial tumor induced by N-nitrosomethylurea by Benda et al after a series of alternate culture and animal passages. Tissue: brain; glial cell; glioma. Morphology: fibroblast." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0004476 a rdfs:Class ;
  rdfs:label "MES-23.5 cell" ;
  rdfs:comment "The MES 23.5 cells were derived from somatic cell fusion of rat embryonic mesencephalic cells with murine N18TG2 neuroblastoma cells." .

obo:BTO_0000669 a rdfs:Class ;
  rdfs:label "embryonic cell line" .

obo:BTO_0003576 a rdfs:Class ;
  rdfs:label "renal proximal tubule epithelium" ;
  rdfs:comment "The cells lining the proximal tubule are cuboidal epithelial cells with deep basal membrane invaginations that provide a large basal surface area. The long microvilli (the brush border) lining the tubule lumen, maximize luminal surface area and make these cells ideally suited for both reabsorptive and secretory functions." .

obo:BTO_0001902 a rdfs:Class ;
  rdfs:label "lag phase culture" ;
  rdfs:comment "The culture at the initial growth phase, during which cell number remains relatively constant prior to rapid growth." ;
  rdfs:subClassOf obo:BTO_0001900 .

obo:BTO_0001992 a rdfs:Class ;
  rdfs:label "culture condition:selenium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001537 a rdfs:Class ;
  rdfs:label "small intestine cell line" ;
  rdfs:subClassOf obo:BTO_0000003 .

obo:BTO_0004645 a rdfs:Class ;
  rdfs:label "culture condition:cocaine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006466 a rdfs:Class ;
  rdfs:label "LC-2/ad cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line, established from the pleural effusion of a pulmonary adenocarcinoma in a 51 year-old Japanese female." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0005304 a rdfs:Class ;
  rdfs:label "culture condition:rice straw-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001522 a rdfs:Class ;
  rdfs:label "B-lymphocyte cell line" .

obo:BTO_0001137 a rdfs:Class ;
  rdfs:label "right colon mucosa" ;
  rdfs:subClassOf obo:BTO_0000271 .

obo:BTO_0002670 a rdfs:Class ;
  rdfs:label "medial geniculate nucleus" ;
  rdfs:comment "The medial geniculate nucleus is a nucleus of the thalamus that acts as a relay for auditory information. It receives its input from the inferior colliculus and sends information out to the auditory cortex. Nucleus within the medial geniculate body." .

obo:BTO_0004194 a rdfs:Class ;
  rdfs:label "pharyngeal process" ;
  rdfs:comment "A large posterior expansion of the basioccipital above the pharyngeal tooth plates of the fifth certaobranchilas in Cyprinidae and related fishes." .

obo:BTO_0003486 a rdfs:Class ;
  rdfs:label "RPMEC cell" ;
  rdfs:comment "Rat pulmonary microvascular endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003124 .

obo:BTO_0005620 a rdfs:Class ;
  rdfs:label "CCE-24 cell" ;
  rdfs:comment "Mouse embryonic stem cell line." ;
  rdfs:subClassOf obo:BTO_0003560 .

obo:BTO_0001804 a rdfs:Class ;
  rdfs:label "root hair" ;
  rdfs:comment "A filamentous extension of an epidermal cell near the tip of a rootlet that functions in absorption of water and minerals; Specialized unicellular trichome found in roots." ;
  rdfs:subClassOf obo:BTO_0003797 .

obo:BTO_0004308 a rdfs:Class ;
  rdfs:label "CGR-8 cell" ;
  rdfs:comment "Mouse embryonic stem cell line. The germ-line competent cell line CGR8 was established from the inner cell mass of a 3.5 day male pre-implantation mouse embryo; mus musculus, strain 129." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0006526 a rdfs:Class ;
  rdfs:label "NCI-H2141 cell" ;
  rdfs:comment "Human small cell lung cancer cell line. Stage E cancer. Cell type lymphoblast." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0006141 a rdfs:Class ;
  rdfs:label "Lu-99 cell" ;
  rdfs:comment "Lung giant cell carcinoma cell line derived from human." ;
  rdfs:subClassOf obo:BTO_0002411 .

obo:BTO_0006234 a rdfs:Class ;
  rdfs:label "culture condition:nicotine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002517 a rdfs:Class ;
  rdfs:label "follicular lymphoma cell line" ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0003670 a rdfs:Class ;
  rdfs:label "microfilarial stage" ;
  rdfs:comment "The prelarval stage of filarioidea in the blood and other tissues of mammals and birds. They are removed from these hosts by blood-sucking insects in which they metamorphose into mature larvae." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0002377 a rdfs:Class ;
  rdfs:label "SR-3Y1 cell" ;
  rdfs:comment "3Y1 cell line transformed by Rous sarcoma virus." ;
  rdfs:subClassOf obo:BTO_0002368 .

obo:BTO_0001859 a rdfs:Class ;
  rdfs:label "wart" ;
  rdfs:comment "A horny projection on the skin usually of the extremities produced by proliferation of the skin papillae and caused by a papillomavirus." .

obo:BTO_0000001 a rdfs:Class ;
  rdfs:label "culture condition:-induced cell" ;
  rdfs:subClassOf obo:BTO_0000216 .

obo:BTO_0004345 a rdfs:Class ;
  rdfs:label "entorhinal cortex" ;
  rdfs:comment "The entorhinal cortex (EC) is an important memory center in the brain. In rodents, the EC is located at the caudal end of the temporal lobe. In primates it is located at the rostral end of the temporal lobe and stretches dorsolaterally. It is usually divided into medial and lateral regions with three bands with distinct properties and connectivity running perpendicular across the whole area." .

obo:BTO_0001263 a rdfs:Class ;
  rdfs:label "Friend erythroleukemia cell line" ;
  rdfs:comment "In 1957 Charlotte Friend described a novel retroviral disease in mice characterized by splenic enlargement, erythroleukemia, and death." ;
  rdfs:subClassOf obo:BTO_0000846 .

obo:BTO_0001482 a rdfs:Class ;
  rdfs:label "CTLL-2 cell" ;
  rdfs:comment "Mouse, C57BL/6, T-lymphocyte cell line." ;
  rdfs:subClassOf obo:BTO_0001045 .

obo:BTO_0003802 a rdfs:Class ;
  rdfs:label "macrogamete" ;
  rdfs:comment "The larger and usually female gamete of a heterogamous organism." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0004385 a rdfs:Class ;
  rdfs:label "cardinal vein" ;
  rdfs:comment "Any of four longitudinal veins of the vertebrate embryo running anteriorly and posteriorly along each side of the spinal column with the pair on each side meeting at and discharging blood to the heart through the corresponding duct of Cuvier." .

obo:BTO_0002820 a rdfs:Class ;
  rdfs:label "oligodendroglioma cell line" ;
  rdfs:comment "A rare slow-growing type of brain tumor that begins in cells called oligodendrocytes, which provide support and nourishment for cells that transmit nerve impulses." .

obo:BTO_0005516 a rdfs:Class ;
  rdfs:label "wood" ;
  rdfs:comment "Wood is a hard, fibrous structural xylem tissue found in the stems and roots of trees and other woody plants." ;
  rdfs:subClassOf obo:BTO_0001468 .

obo:BTO_0005740 a rdfs:Class ;
  rdfs:label "plant stem cell" ;
  rdfs:comment "Plant stem cells are innately undifferentiated cells located in the meristems of plant. Plant stem cells serve as the origin of plant vitality, as they maintain themselves while providing a steady supply of precursor cells to form differentiated tissues and organs in plants. Two distinct areas of stem cells are recognised: the apical meristem and the lateral meristem." .

obo:BTO_0000880 a rdfs:Class ;
  rdfs:label "culture condition:alkane-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003536 a rdfs:Class ;
  rdfs:label "NCI-H522 cell" ;
  rdfs:comment "Human non-small cell lung cancer adenocarcinoma cell line. This line was derived from a lung cancer obtained from a 60 years old caucasian male patient prior to therapy." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002250 a rdfs:Class ;
  rdfs:label "nucleus lentiformis" ;
  rdfs:comment "The part of the corpus striatum somewhat resembling a biconvex lens, divided into an external, larger, lateral part (putamen) and an internal, smaller, lighter colored medial part (globus pallidus), which is in turn subdivided into a smaller, medial, and a larger, lateral part by the medial medullary lamina." .

obo:BTO_0000677 a rdfs:Class ;
  rdfs:label "plant tumor tissue" .

obo:BTO_0004233 a rdfs:Class ;
  rdfs:label "UACC-257 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004743 a rdfs:Class ;
  rdfs:label "HCT-166 cell" ;
  rdfs:comment "Human colon carcinoma cell line." .

obo:BTO_0000730 a rdfs:Class ;
  rdfs:label "endocarp" ;
  rdfs:comment "The inner layer of the pericarp of a fruit (as an apple or orange) when it consists of two or more layers of different texture or consistency." .

obo:BTO_0001942 a rdfs:Class ;
  rdfs:label "mandibular incisor" .

obo:BTO_0000321 a rdfs:Class ;
  rdfs:label "plant cuticle" ;
  rdfs:comment "A thin continuous fatty or waxy film on the external surface of many higher plants that consists chiefly of cutin." .

obo:BTO_0003236 a rdfs:Class ;
  rdfs:label "gall bladder cancer cell line" ;
  rdfs:subClassOf obo:BTO_0003235 .

obo:BTO_0002286 a rdfs:Class ;
  rdfs:label "POGS-5 cell" ;
  rdfs:comment "Immortalized cell line of primary granulosa cells, isolated from 25-day-old immature rats and transfected with SV40 DNA alone." ;
  rdfs:subClassOf obo:BTO_0002285 .

obo:BTO_0003182 a rdfs:Class ;
  rdfs:label "NHEK cell" ;
  rdfs:comment "Normal human epidermal keratinocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000375 .

obo:BTO_0004996 a rdfs:Class ;
  rdfs:label "myelinating Schwann cell" ;
  rdfs:comment "A variety of glial cell that keep myelinated peripheral nerve fibres alive." ;
  rdfs:subClassOf obo:BTO_0001220 .

obo:BTO_0001854 a rdfs:Class ;
  rdfs:label "vascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001176 .

obo:BTO_0006455 a rdfs:Class ;
  rdfs:label "HHL-5 cell" ;
  rdfs:comment "Human hepatocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0002434 a rdfs:Class ;
  rdfs:label "dorsal raphe nucleus" ;
  rdfs:comment "A large raphe nucleus extending from the anterior part of the pons through the mesencephalon; its neurons are serotoninergic." .

obo:BTO_0004839 a rdfs:Class ;
  rdfs:label "muscularis mucosa" ;
  rdfs:comment "The thin layer of smooth muscle found in most parts of the gastrointestinal tract, located outside the lamina propria mucosae and separating it from the submucosa." ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0002776 a rdfs:Class ;
  rdfs:label "inflorescence apex" ;
  rdfs:comment "The inflorescence apex produces inflorescence axes in the axils of all ventral bracts of two rows, and secondary inflorescences in the axils of the lower dorsal bracts of the other two rows." .

obo:BTO_0001860 a rdfs:Class ;
  rdfs:label "yolk sac cancer cell" ;
  rdfs:comment "Malignant germ cell tumour commonly found in the ovary. The tumour arises from primitive germ cells and develops into extra-embryonic tissue resembling the yolk sac." ;
  rdfs:subClassOf obo:BTO_0000809 , obo:BTO_0001023 .

obo:BTO_0006393 a rdfs:Class ;
  rdfs:label "FS-293F cell" ;
  rdfs:comment "cultures derived from parental 293-F cells that were re-cloned by limiting dilution." .

obo:BTO_0000149 a rdfs:Class ;
  rdfs:label "breast" ;
  rdfs:comment "The fore or ventral part of the body between the neck and the abdomen." ;
  rdfs:subClassOf obo:BTO_0000254 , obo:BTO_0000431 .

obo:BTO_0005315 a rdfs:Class ;
  rdfs:label "peripheral nerve sheath cancer cell" ;
  rdfs:comment "A peripheral nerve sheath tumor (PNST) is a nerve sheath tumor in the peripheral nervous system." ;
  rdfs:subClassOf obo:BTO_0005314 .

obo:BTO_0005203 a rdfs:Class ;
  rdfs:label "gingival cancer cell line" ;
  rdfs:subClassOf obo:BTO_0003578 .

obo:BTO_0003395 a rdfs:Class ;
  rdfs:label "Spemanns organizer" ;
  rdfs:comment "The regions within an embryo that control development and differentiation. In amphibia, the organizer forms at the dorsal-most lip of the blastopore during gastrulation and is named after its discoverer, Hans Spemann." .

obo:BTO_0003142 a rdfs:Class ;
  rdfs:label "KU-812F cell" ;
  rdfs:comment "Human myelogenous leukaemia cell line. A subclone of the chronic myelogenous leukaemia cell line KU-812." .

obo:BTO_0004279 a rdfs:Class ;
  rdfs:label "cerebral granule cell" ;
  rdfs:comment "Granule cells found within the layer 4 of cerebral cortex." ;
  rdfs:subClassOf obo:BTO_0003393 .

obo:BTO_0005725 a rdfs:Class ;
  rdfs:label "HuH-7-Lunet cell" .

obo:BTO_0002878 a rdfs:Class ;
  rdfs:label "B-lymphoblastoid cell" ;
  rdfs:subClassOf obo:BTO_0001528 .

obo:BTO_0000857 a rdfs:Class ;
  rdfs:label "umbilical artery endothelium" ;
  rdfs:subClassOf obo:BTO_0000393 .

obo:BTO_0004565 a rdfs:Class ;
  rdfs:label "thymic medullary epithelium" .

obo:BTO_0006487 a rdfs:Class ;
  rdfs:label "aerodigestive tract" ;
  rdfs:comment "The mixed airway and gastrointestinal tract that includes the oral cavity, pharynx, paranasal sinuses, sinonasal tract, larynx, pyriform sinus, pharynx, and upper oesophagus." ;
  rdfs:subClassOf obo:BTO_0001491 .

obo:BTO_0002474 a rdfs:Class ;
  rdfs:label "dorsomedial nucleus of intermediate hypothalamus" ;
  rdfs:comment "A group of nerve cell bodies found in the dorsal part of the intermediate hypothalamic region." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0003937 a rdfs:Class ;
  rdfs:label "lateral septal area" ;
  rdfs:comment "The lateral septal area; largest nuclear mass in this region, plays a pivotal role in various physiological processes, such as aggression, emotion, thermoregulation, water and food intake and sexual behaviour." .

obo:BTO_0002917 a rdfs:Class ;
  rdfs:label "rhabdomyocyte cell line" ;
  rdfs:subClassOf obo:BTO_0002662 .

obo:BTO_0004255 a rdfs:Class ;
  rdfs:label "Ewing's family tumor cell" ;
  rdfs:comment "The Ewing's family of tumors includes Ewing's tumor of bone, extraosseus Ewing's sarcoma, primitive neuroectodermal tumors, and Askin's tumor. All of these tumors are derived from the same primordial stem cell, the primitive nerve cell." ;
  rdfs:subClassOf obo:BTO_0000372 .

obo:BTO_0006430 a rdfs:Class ;
  rdfs:label "brown adipocyte" ;
  rdfs:comment "Brown adipocytes include numerous mitochondria, which in part induce the darker color of this tissue compared to white adipose tissue." ;
  rdfs:subClassOf obo:BTO_0000443 .

obo:BTO_0001404 a rdfs:Class ;
  rdfs:label "Yoshida ascites hepatoma cell line" ;
  rdfs:subClassOf obo:BTO_0000582 .

obo:BTO_0000081 a rdfs:Class ;
  rdfs:label "reproductive system" ;
  rdfs:comment "In women, the organs that are directly involved in producing eggs and in conceiving and carrying babies. In men, the organs directly involved in creating, storing, and delivering sperm to fertilize an egg." .

obo:BTO_0003615 a rdfs:Class ;
  rdfs:label "HEK-293 PEAKrapid cell" ;
  rdfs:comment "Modified HEK-293 cell." .

obo:BTO_0001977 a rdfs:Class ;
  rdfs:label "Oc cell" ;
  rdfs:comment "Oc cell line; derived from the indica variety C5924 of Oryza sativa." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0001490 a rdfs:Class ;
  rdfs:label "other source" ;
  rdfs:comment "Other sources of an enzyme as cell culture or commercial preparation, not related to a specific tissue." ;
  rdfs:subClassOf obo:BTO_0000000 .

obo:BTO_0001711 a rdfs:Class ;
  rdfs:label "melanophore" ;
  rdfs:comment "A pigment cell that contains melanin, especially as found in the skin of amphibians and reptiles." ;
  rdfs:subClassOf obo:BTO_0001470 .

obo:BTO_0003066 a rdfs:Class ;
  rdfs:label "WI38-VA13 subline 2RA cell" ;
  rdfs:comment "Homo sapiens (human) lung fibroblast; SV40 transformed cell line; established from 3 months gestation caucasian female." .

obo:BTO_0002588 a rdfs:Class ;
  rdfs:label "NCI-H295R cell" ;
  rdfs:comment "NCI-H295R was adapted from the NCI-H295 pluripotent adrenocortical carcinoma cell line established by A.F. Gazdar and associates from a carcinoma of the adrenal cortex." .

obo:BTO_0001844 a rdfs:Class ;
  rdfs:label "tooth enamel" ;
  rdfs:comment "The hard, calcareous substance covering the exposed portion of a tooth." .

obo:BTO_0000416 a rdfs:Class ;
  rdfs:label "epithelium" ;
  rdfs:comment "A membranous cellular tissue that covers a free surface or lines a tube or cavity of an animal body and serves especially to enclose and protect the other parts of the body, to produce secretions and excretions, and to function in assimilation." ;
  rdfs:subClassOf obo:BTO_0000634 .

obo:BTO_0001193 a rdfs:Class ;
  rdfs:label "C-127 cell" ;
  rdfs:comment "Murine mammary tumor line from a female mus musculus." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0004244 a rdfs:Class ;
  rdfs:label "449 cell" ;
  rdfs:comment "Trypanosoma brucei cell line; stably expressing the tetracycline repressor." ;
  rdfs:subClassOf obo:BTO_0004243 .

obo:BTO_0004436 a rdfs:Class ;
  rdfs:label "HOSE 6-3 cell" ;
  rdfs:comment "Immortalized non-cancer human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002555 .

obo:BTO_0002338 a rdfs:Class ;
  rdfs:label "culture condition:cellulose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005689 a rdfs:Class ;
  rdfs:label "atrioventricular node" ;
  rdfs:comment "A small mass of specialized cardiac muscle fibers, located in the wall of the right atrium of the heart, that receives heartbeat impulses from the sinoatrial node and directs them to the walls of the ventricles." .

obo:BTO_0001830 a rdfs:Class ;
  rdfs:label "tassel" ;
  rdfs:comment "The terminal male inflorescence of some plants and especially Indian corn." ;
  rdfs:subClassOf obo:BTO_0000628 .

obo:BTO_0000109 a rdfs:Class ;
  rdfs:label "bacteroid" ;
  rdfs:comment "An irregularly shaped bacterium (as a rhizobium) found especially in root nodules of legumes." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0004576 a rdfs:Class ;
  rdfs:label "smooth muscle cell" ;
  rdfs:comment "Muscle tissue that lacks cross striations, that is made up of elongated spindle-shaped cells having a central nucleus, and that is found in vertebrate visceral structures (as the stomach and bladder) as thin sheets performing functions not subject to conscious control by the mind and in all or most of the musculature of invertebrates other than arthropods." .

obo:BTO_0000310 a rdfs:Class ;
  rdfs:label "protophloem" ;
  rdfs:comment "The first-formed phloem that develops from procambium, consists of narrow thin-walled cells capable of a limited amount of stretching, and is usually associated with a region of rapid growth." .

obo:BTO_0001819 a rdfs:Class ;
  rdfs:label "stria vascularis" ;
  rdfs:comment "The upper part of the spiral ligament of the scala media that contains numerous small blood vessels; A layer of vascular tissue consisting of epithelial cells, mesothelial cells, and probably some neuroectoderm; it covers the outer wall of the cochlear duct and is thought to secrete the endolymph." .

obo:BTO_0006071 a rdfs:Class ;
  rdfs:label "ORL-8 cell" ;
  rdfs:comment "Li23 derived ribavirin-sensitive cell line." .

obo:BTO_0002890 a rdfs:Class ;
  rdfs:label "CA-77 cell" ;
  rdfs:comment "Rat medullary thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003073 .

obo:BTO_0005244 a rdfs:Class ;
  rdfs:label "culture condition:CD19+ cell" ;
  rdfs:comment "B-lymphocyte antigen CD19 also known as CD19 (Cluster of Differentiation 19), is a protein that in humans is encoded by the CD19 gene. CD19 is expressed on follicular dendritic cells and B cells. In fact, it is present on B cells from earliest recognizable B-lineage cells during development to B-cell blasts but is lost on maturation to plasma cells." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0000041 a rdfs:Class ;
  rdfs:label "medulla oblongata" ;
  rdfs:comment "The part of the vertebrate brain that is continuous posteriorly with the spinal cord and that contains the centers controlling involuntary vital functions." .

obo:BTO_0003185 a rdfs:Class ;
  rdfs:label "NHDF cell" ;
  rdfs:comment "Normal human dermal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0002563 a rdfs:Class ;
  rdfs:label "OVCA-420 cell" ;
  rdfs:comment "Human epithelial ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0003328 a rdfs:Class ;
  rdfs:label "FL5.12 cell" ;
  rdfs:comment "FL5.12 cells are a murine pro-B-cell line derived from fetal liver, which undergo apoptotic cell death following IL-3 deprivation." ;
  rdfs:subClassOf obo:BTO_0003103 .

obo:BTO_0004822 a rdfs:Class ;
  rdfs:label "germ tube" ;
  rdfs:comment "A germ tube is an outgrowth produced by certain species of spore-releasing fungi (sporangia) during germination. The germ tube differentiates, grows, and develops by mitosis to create a somatic hyphae." ;
  rdfs:subClassOf obo:BTO_0001436 .

obo:BTO_0006420 a rdfs:Class ;
  rdfs:label "MHM cell" ;
  rdfs:comment "Human osteosarcoma cell line from pelvis, established from primary patient samples at the Norwegian Radium Hospital." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0006046 a rdfs:Class ;
  rdfs:label "NP-69 cell" ;
  rdfs:comment "Normal human nasopharyngeal cell line, immortalized with SV40 large T oncogene." ;
  rdfs:subClassOf obo:BTO_0006045 .

obo:BTO_0005353 a rdfs:Class ;
  rdfs:label "Abrams cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002160 a rdfs:Class ;
  rdfs:label "apothecium" ;
  rdfs:comment "An open or expanded fruiting body seen in lichens and actinomycetous fungi, having asci contained on its exposed surface." ;
  rdfs:subClassOf obo:BTO_0002161 .

obo:BTO_0003023 a rdfs:Class ;
  rdfs:label "NCI-H510 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0004779 a rdfs:Class ;
  rdfs:label "soft tissue sarcoma cell" ;
  rdfs:comment "A malignant tumor that begins in the muscle, fat, fibrous tissue, blood vessels, or other \"soft\" supporting tissues of the body. Soft tissue sarcomas do not originate in bone or cartilage." ;
  rdfs:subClassOf obo:BTO_0001801 .

obo:BTO_0006507 a rdfs:Class ;
  rdfs:label "CHO-Lec8 cell" ;
  rdfs:comment "Chinese hamster ovary cell line, a mutant clone derived from the parental CHO clone Pro-5." .

obo:BTO_0001024 a rdfs:Class ;
  rdfs:label "retinal rod" ;
  rdfs:comment "Major photoreceptor cell of vertebrate retina. Columnar cells having three distinct regions: a region adjacent to, and synapsed with, the neural layer of the retina contains the nucleus and other cytoplasmic organelles, below this is the inner segment, rich in mitochondria, that is connected through a thin neck (in which is located a ciliary body) to the outer segment. The outer segment largely consists of a stack of discs (membrane infoldings that are incompletely separated in cones) that are continually replenished near the inner segment and that are shed from the distal end and phagocytosed by the pigmented epithelium. The membranes of the discs are rich in rhodopsin, the pigment that absorbs light." ;
  rdfs:subClassOf obo:BTO_0001060 .

obo:BTO_0000705 a rdfs:Class ;
  rdfs:label "Langerhans cell" ;
  rdfs:comment "Stellate dendritic cells, derived from precursors in the bone marrow, that appear clear on light microscopy and have a dark-staining, indented nucleus and characteristic inclusions (Birbeck granules) in the cytoplasm, they lack tonofilaments, desmosomes, and melanosomes. Langerhans' cells are found principally in the stratum spinosum of the epidermis, but they also occur in other stratified epithelia and have been identified in the lung, lymph nodes, spleen, and thymus. They have surface markers characteristic of macrophages and are believed to be antigen-presenting cells involved in contact allergic responses and other cell-mediated immune reactions in the skin." ;
  rdfs:subClassOf obo:BTO_0000801 , obo:BTO_0001470 .

obo:BTO_0003237 a rdfs:Class ;
  rdfs:label "gall bladder cancer cell" .

obo:BTO_0002120 a rdfs:Class ;
  rdfs:label "pyloric cecum" ;
  rdfs:comment "The pyloric ceca (or digestive glands) and the cardiac stomach produce digestive enzymes in starfishes. Digested material is absorbed through the pyloric ceca for transport to the rest of the body. Each pyloric cecum extends the length of each arm." ;
  rdfs:subClassOf obo:BTO_0001806 .

obo:BTO_0005455 a rdfs:Class ;
  rdfs:label "cotyledonary node" ;
  rdfs:comment "A leaf of the embryo of a seed plant, which upon germination either remains in the seed or emerges, enlarges, and becomes green." .

obo:BTO_0001364 a rdfs:Class ;
  rdfs:label "testis sheath" .

obo:BTO_0000012 a rdfs:Class ;
  rdfs:label "culture condition:4-(methoxymethyl)phenol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006144 a rdfs:Class ;
  rdfs:label "NM2C5 cell" ;
  rdfs:comment "Human melanocyte melanoma cell line. Recent studies have generated questions about the origin of the parent cell line, MDA-MB-435. Additional studies have since corroborated a melanocyte origin of MDA-MB-435, to which ATCC has responded by pursuing its own investigation into the identity of this cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002596 a rdfs:Class ;
  rdfs:label "NUGC-2 cell" ;
  rdfs:comment "Human gastric adenocarcinoma cell line established from a 56-year-old female." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0004865 a rdfs:Class ;
  rdfs:label "Human-7 cell" ;
  rdfs:comment "Normal human breast cell line." ;
  rdfs:subClassOf obo:BTO_0000816 .

obo:BTO_0000052 a rdfs:Class ;
  rdfs:label "stoma" ;
  rdfs:comment "The epidermal complex consisting of two guard cells and the pore between them." .

obo:BTO_0005287 a rdfs:Class ;
  rdfs:label "2102Ep cell" ;
  rdfs:comment "Human embryonal carcinoma line." ;
  rdfs:subClassOf obo:BTO_0001437 .

obo:BTO_0004772 a rdfs:Class ;
  rdfs:label "WRO cell" ;
  rdfs:comment "Follicular thyroid tumor cell line." ;
  rdfs:subClassOf obo:BTO_0003874 .

obo:BTO_0002855 a rdfs:Class ;
  rdfs:label "hepatic cecum" ;
  rdfs:comment "A ventral evagination extending anteriorly in the mid-portion of the intestine in Amphioxi probably homologous with the liver of other chordates." .

obo:BTO_0005959 a rdfs:Class ;
  rdfs:label "thyroid follicular epithelial cell" ;
  rdfs:comment "A cell lining a follicle such as that of the thyroid gland." .

obo:BTO_0001019 a rdfs:Class ;
  rdfs:label "prostate gland cell line" .

obo:BTO_0003756 a rdfs:Class ;
  rdfs:label "STAV-FCS cell" ;
  rdfs:comment "Human malignant mesothelioma cell line with a fibroblast like phenotype." ;
  rdfs:subClassOf obo:BTO_0002424 .

obo:BTO_0000405 a rdfs:Class ;
  rdfs:label "penis" ;
  rdfs:comment "A male organ of copulation that in male mammals including humans usually functions as the channel by which urine leaves the body." ;
  rdfs:subClassOf obo:BTO_0003097 .

obo:BTO_0000922 a rdfs:Class ;
  rdfs:label "neostriatal neuron" ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0003247 a rdfs:Class ;
  rdfs:label "BAEC cell" ;
  rdfs:comment "Bovine aortic endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003246 .

obo:BTO_0006060 a rdfs:Class ;
  rdfs:label "WA-01 cell" ;
  rdfs:comment "Human embryonic stem cell line from a male." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0003458 a rdfs:Class ;
  rdfs:label "chromophobe renal cell carcinoma cell" ;
  rdfs:comment "Chromophobe renal cell carcinoma (ChRCC) is a distinct variant of renal cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0000037 .

obo:BTO_0003016 a rdfs:Class ;
  rdfs:label "SW-1573 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line. Alveolar cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0005841 a rdfs:Class ;
  rdfs:label "Hunter's organ" ;
  rdfs:comment "The electric eel has three pairs of abdominal organs that produce electricity: the main organ, the Hunter's organ, and the Sach's organ. These organs are made of electrocytes, lined up so a current of ions can flow through them and stacked so each one adds to a potential difference. The Sach's organ is associated with electrolocation. Inside the organ are many muscle-like cells, called electrocytes. Each cell can only produce 0.15 V, though the organ can transmit a signal of nearly 10 V overall in amplitude at around 25 Hz in frequency. These signals are emitted by the main organ; the Hunter's organ can emit signals at rates of several hundred hertz." .

obo:BTO_0002118 a rdfs:Class ;
  rdfs:label "culture condition:collagen-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002380 a rdfs:Class ;
  rdfs:label "gastric adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0000787 .

obo:BTO_0005999 a rdfs:Class ;
  rdfs:label "chelate leg" ;
  rdfs:comment "At the thorax of a prawn there are five pairs of walking legs. They are used for crawling on the river bed. Of the five pairs of walking legs the first two pairs bear pincers at their free ends and are, therefore, called chelate legs; these along with the rostrum and the spines are regarded as organs of offence and defence." ;
  rdfs:subClassOf obo:BTO_0005998 .

obo:BTO_0003339 a rdfs:Class ;
  rdfs:label "HCMEC/D3 cell" ;
  rdfs:comment "Human cerebral microvascular endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003129 .

obo:BTO_0003037 a rdfs:Class ;
  rdfs:label "HT-22 cell" ;
  rdfs:comment "Mouse hippocampal cell line." ;
  rdfs:subClassOf obo:BTO_0003036 .

obo:BTO_0003135 a rdfs:Class ;
  rdfs:label "zona pellucida" ;
  rdfs:comment "A thick, transparent, noncellular layer or envelope of uniform thickness surrounding an oocyte. Under the light microscope it appears as a radially striated layer; under the electron microscope this can be seen to be microvillous." .

obo:BTO_0003796 a rdfs:Class ;
  rdfs:label "periglomerular cell" ;
  rdfs:comment "The glomerular layer is the most superficial layer, consisting of mitral cell dendritic arborizations (glomeruli), olfactory nerve fibers, and periglomerular cells. Periglomerular cells contact multiple mitral cell dendrites within the glomeruli and provide lateral inhibition of neighboring glomeruli while allowing excitation of a specific mitral cell dendritic tree." .

obo:BTO_0006155 a rdfs:Class ;
  rdfs:label "glioma stem cell" ;
  rdfs:subClassOf obo:BTO_0002881 .

obo:BTO_0001420 a rdfs:Class ;
  rdfs:label "uropygial gland" ;
  rdfs:comment "A large gland at the base of a bird's tail that secretes an oil used in preening." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0000265 a rdfs:Class ;
  rdfs:label "coagulating gland" ;
  rdfs:subClassOf obo:BTO_0000080 .

obo:BTO_0005674 a rdfs:Class ;
  rdfs:label "SW-60 cell" ;
  rdfs:comment "Human colorectal tumor cell line." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0003410 a rdfs:Class ;
  rdfs:label "nucleus taeniae" .

obo:BTO_0002603 a rdfs:Class ;
  rdfs:label "11-9-1-4 cell" ;
  rdfs:comment "11-9-1-4 cell line was obtained from the Meharry Tissue Procurement Facility, Meharry Medical College, Nashville, TN. It originated from a human breast epithelial cell line BT-549 at ATCC and transfected with galectin-3, a beta-galactoside binding protein (a cell adhesion molecule)." .

obo:BTO_0000805 a rdfs:Class ;
  rdfs:label "pancreatic PP cell" ;
  rdfs:comment "Cells in the pancreatic islets, exocrine pancreas, and intestine that secrete pancreatic polypeptide." ;
  rdfs:subClassOf obo:BTO_0005813 .

obo:BTO_0005273 a rdfs:Class ;
  rdfs:label "adventitious root" ;
  rdfs:comment "A root growing from a location other than the underground, descending portion of the axis of a plant, as from a stem or leaf." ;
  rdfs:subClassOf obo:BTO_0001188 .

obo:BTO_0004806 a rdfs:Class ;
  rdfs:label "CHO-91-47-67 cell" ;
  rdfs:comment "CHO-K1 cells were stably transfected with one or more plasmids for expression of gp91phox, p47phox, and p67phox." .

obo:BTO_0001088 a rdfs:Class ;
  rdfs:label "gastric cell line" .

obo:BTO_0002174 a rdfs:Class ;
  rdfs:label "parenchymal cell" ;
  rdfs:comment "Any cell that is a functional element of an organ, such as a hepatocyte." .

obo:BTO_0001635 a rdfs:Class ;
  rdfs:label "pia mater" ;
  rdfs:comment "The fine vascular membrane that closely envelops the brain and spinal cord under the arachnoid and the dura mater." .

obo:BTO_0006553 a rdfs:Class ;
  rdfs:label "Sa-3 cell" ;
  rdfs:comment "Human oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0002963 a rdfs:Class ;
  rdfs:label "1704 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002139 a rdfs:Class ;
  rdfs:label "HS-683 cell" ;
  rdfs:comment "Human brain glioma cell line. Hs 683 was isolated from explant cultures of a glioma taken from the left temporal lobe of a 76 year old male Caucasian." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0004932 a rdfs:Class ;
  rdfs:label "RCC-10 cell" ;
  rdfs:comment "Human renal clear cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0003069 a rdfs:Class ;
  rdfs:label "OK cell" ;
  rdfs:comment "American Opossum kidney cell line; derived from proximal tubule of a kidney taken from an adult female opossum. Cells retain proximal tubule function." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0002265 a rdfs:Class ;
  rdfs:label "microplasmodium" ;
  rdfs:comment "The aggregation stage of Physarum polycephalum." ;
  rdfs:subClassOf obo:BTO_0000757 , obo:BTO_0002007 .

obo:BTO_0005755 a rdfs:Class ;
  rdfs:label "choroid plexus papilloma cell" ;
  rdfs:comment "Choroid plexus papillomas are an uncommon, benign neuroepithelial intraventricular tumour which can occur in both the paediatric and adult population." ;
  rdfs:subClassOf obo:BTO_0005754 .

obo:BTO_0005465 a rdfs:Class ;
  rdfs:label "intercalary meristem" ;
  rdfs:comment "A meristem developing between regions of mature or permanent tissue as at the base of the grass leaf." ;
  rdfs:subClassOf obo:BTO_0000852 .

obo:BTO_0004732 a rdfs:Class ;
  rdfs:label "bone marrow-derived macrophage" ;
  rdfs:comment "Bone marrow-derived macrophages (BMM) are primary macrophage cells, derived from bone marrow cells in vitro in the presence of growth factors." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0004059 a rdfs:Class ;
  rdfs:label "CCD-18Co cell" ;
  rdfs:comment "Human normal colon fibroblast cell line established from a black 2.5-months-old human female." ;
  rdfs:subClassOf obo:BTO_0000188 .

obo:BTO_0002608 a rdfs:Class ;
  rdfs:label "vomeronasal organ" ;
  rdfs:comment "A specialized part of the olfactory system located anteriorly in the nasal cavity within the nasal septum. Chemosensitive cells of the vomeronasal organ project via the vomeronasal nerve to the accessory olfactory bulb. The primary function of this organ appears to be in sensing pheromones which regulate reproductive and other social behaviors. While the structure has been thought absent in higher primate adults, data now suggests it may be present in adult humans." .

obo:BTO_0004424 a rdfs:Class ;
  rdfs:label "ES-2 cell" ;
  rdfs:comment "Human clear cell ovarian carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004464 a rdfs:Class ;
  rdfs:label "IOMM-Lee cell" ;
  rdfs:comment "Malignant meningioma cell line." ;
  rdfs:subClassOf obo:BTO_0004398 .

obo:BTO_0002831 a rdfs:Class ;
  rdfs:label "PC-346C cell" ;
  rdfs:comment "Androgen-dependent human prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005584 a rdfs:Class ;
  rdfs:label "promonocytic leukemia cell" ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0000929 a rdfs:Class ;
  rdfs:label "neural retina" ;
  rdfs:comment "Layer of nerve cells in the retina, embryologically part of the brain. The incoming light passes through nerve-fibres and intermediary nerve cells of the neural retina, before encountering the light-sensitive rods and cones at the interface between neural retina and the pigmented retinal epithelium." .

obo:BTO_0002599 a rdfs:Class ;
  rdfs:label "RBA-2 cell" ;
  rdfs:comment "Rat brain-derived type-2 astrocyte cell line." ;
  rdfs:subClassOf obo:BTO_0002600 .

obo:BTO_0004908 a rdfs:Class ;
  rdfs:label "Bergmann fiber" ;
  rdfs:comment "Filamentous glia fibers traversing the cerebellar cortex perpendicular to the surface. These fibers are the processes of Golgi epithelial cells." ;
  rdfs:subClassOf obo:BTO_0004907 .

obo:BTO_0000782 a rdfs:Class ;
  rdfs:label "T-lymphocyte" ;
  rdfs:comment "Any of several lymphocytes (as a helper T cell) that differentiate in the thymus, possess highly specific cell-surface antigen receptors, and include some that control the initiation or suppression of cell-mediated and humoral immunity (as by the regulation of T and B cell maturation and proliferation) and others that lyse antigen-bearing cells." ;
  rdfs:subClassOf obo:BTO_0000775 .

obo:BTO_0002066 a rdfs:Class ;
  rdfs:label "venom sac" ;
  rdfs:comment "Bee venom is synthesized in the venom glands of worker and queen bees and stored in their venom sacs." .

obo:BTO_0005714 a rdfs:Class ;
  rdfs:label "Mel-FH cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001931 a rdfs:Class ;
  rdfs:label "BJAB cell" ;
  rdfs:comment "The malignant human B-cell-line BJAB is a EBV-negative Burkitt-like lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0002514 a rdfs:Class ;
  rdfs:label "CN1.4 cell" ;
  rdfs:comment "Immortalized embryonic mouse neuronal brain cortex cell line." ;
  rdfs:subClassOf obo:BTO_0000947 , obo:BTO_0002515 .

obo:BTO_0001029 a rdfs:Class ;
  rdfs:label "perisperm" ;
  rdfs:comment "The nutritive tissue that is derived from the nucleus and surrounds the embryo of the seed." .

obo:BTO_0002210 a rdfs:Class ;
  rdfs:label "SiHa cell" ;
  rdfs:comment "HPV16 cervical cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002212 .

obo:BTO_0001640 a rdfs:Class ;
  rdfs:label "limb bud" ;
  rdfs:comment "A swelling on the trunk of the embryo that becomes a limb." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0003226 a rdfs:Class ;
  rdfs:label "STS-26T cell" ;
  rdfs:comment "Human malignant schwannoma cell line." ;
  rdfs:subClassOf obo:BTO_0003225 .

obo:BTO_0001270 a rdfs:Class ;
  rdfs:label "spear" ;
  rdfs:comment "A usually young blade, shoot, or sprout (as of grass)." ;
  rdfs:subClassOf obo:BTO_0001296 .

obo:BTO_0002157 a rdfs:Class ;
  rdfs:label "endochondral bone" ;
  rdfs:comment "Refers to skeletal elements which are formed in cartilage and which later ossify. Also called replacement bone because it gradually replaces the pre-existing cartilage." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0003497 a rdfs:Class ;
  rdfs:label "papillary renal cell carcinoma cell" ;
  rdfs:comment "A type of kidney cancer that accounts for 15 to 20% of renal carcinomas. It occurs in both sporadic and familial forms. Hereditary papillary renal carcinoma is characterized by the development of multiple papillary tumors in both kidneys." ;
  rdfs:subClassOf obo:BTO_0000037 .

obo:BTO_0005573 a rdfs:Class ;
  rdfs:label "HCE-6 cell" ;
  rdfs:comment "Human esophageal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002817 .

obo:BTO_0004291 a rdfs:Class ;
  rdfs:label "umbilical vein smooth muscle" .

obo:BTO_0005087 a rdfs:Class ;
  rdfs:label "arteria bulbi penis" ;
  rdfs:comment "The common penile artery subdivides into three arteries, the bulbourethral artery, the dorsal artery of the penis and the cavernosal artery." .

obo:BTO_0003107 a rdfs:Class ;
  rdfs:label "foreign-body giant cell" ;
  rdfs:comment "Syncytium formed by the fusion of macrophages in response to an indigestible particle too large to be phagocytosed for example talc, silica or asbestos fibres. Multinucleated cells (fused macrophages), characteristic of granulomatous inflammation, which form around exogenous material in the skin. They are similar in appearance to Langhans giant cells, but foreign-body giant cells have more abundant chromatin and their nuclei are scattered in an irregular pattern in the cytoplasm." .

obo:BTO_0003716 a rdfs:Class ;
  rdfs:label "ScN2a cell" ;
  rdfs:comment "Scrapie-infected mouse neuroblastoma N2a cell line." .

obo:BTO_0001002 a rdfs:Class ;
  rdfs:label "schizont" ;
  rdfs:comment "A multinucleate sporozoan (as a malaria parasite) that reproduces by schizogony." ;
  rdfs:subClassOf obo:BTO_0000749 .

obo:BTO_0004692 a rdfs:Class ;
  rdfs:label "venous system" ;
  rdfs:comment "A system of interconnected blood vessels that returns blood to the heart from the tissue and capillary bed through progressively larger vessels." ;
  rdfs:subClassOf obo:BTO_0001085 .

obo:BTO_0002614 a rdfs:Class ;
  rdfs:label "reticulopodium" ;
  rdfs:comment "A filamentous pseudopodium with interconnected branches." ;
  rdfs:subClassOf obo:BTO_0002610 .

obo:BTO_0004070 a rdfs:Class ;
  rdfs:label "compost" ;
  rdfs:comment "A mixture that consists largely of decayed organic matter and is used for fertilizing and conditioning land." ;
  rdfs:subClassOf obo:BTO_0003809 .

obo:BTO_0004836 a rdfs:Class ;
  rdfs:label "superior frontal gyrus" ;
  rdfs:comment "It makes up about one-third of the frontal lobe of the human brain. It is bounded laterally by the superior frontal sulcus. The superior frontal gyrus, like the inferior frontal gyrus and the middle frontal gyrus, is more of a region than a true gyrus." .

obo:BTO_0005107 a rdfs:Class ;
  rdfs:label "culture condition:gellan-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003975 a rdfs:Class ;
  rdfs:label "cingulate cortex" ;
  rdfs:comment "A part of the brain situated in the medial aspect of the cortex. It is extended from the corpus callosum below to the cingulate sulcus above, at least anteriorly." .

obo:BTO_0001378 a rdfs:Class ;
  rdfs:label "maxillary nerve" ;
  rdfs:comment "One of the three terminal divisions of the trigeminal nerve, passing through the foramen rotundum, and entering the pterygopalatine fossa. Origin, trigeminal ganglion; branches, meningeal ramus, zygomatic nerve, posterior superior alveolar rami, infraorbital nerve, pterygopalatine nerves, and, indirectly, the branches of the pterygopalatine ganglion; distribution, extensive distribution to skin of face and scalp, mucous membrane of maxillary sinus and nasal cavity, and teeth." .

obo:BTO_0002635 a rdfs:Class ;
  rdfs:label "Sua1.1 cell" ;
  rdfs:comment "Anopheles gambiae cell line established from newly hatched larvae via a homogenization technique." ;
  rdfs:subClassOf obo:BTO_0002632 .

obo:BTO_0000716 a rdfs:Class ;
  rdfs:label "pancreatic beta cell line" .

obo:BTO_0000029 a rdfs:Class ;
  rdfs:label "adductor longus" ;
  rdfs:comment "Adductor arising from the superior ramus of the pubis and inserted into the middle third of the linea aspera." ;
  rdfs:subClassOf obo:BTO_0000030 .

obo:BTO_0004895 a rdfs:Class ;
  rdfs:label "NPC-TW01 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line." .

obo:BTO_0004955 a rdfs:Class ;
  rdfs:label "MDA-MB-231-B02 cell" ;
  rdfs:comment "Human breast cancer cell line." .

obo:BTO_0005401 a rdfs:Class ;
  rdfs:label "junctional zone" ;
  rdfs:comment "The murine placenta consists of two main fetally derived compartments: the labyrinthine zone and the junctional zone." .

obo:BTO_0006218 a rdfs:Class ;
  rdfs:label "MDA-MB-157 cell" ;
  rdfs:comment "Human breast medulla carcinoma cell line, established from the pleural effusion of a 44 year old woman with metastatic breast cancer." ;
  rdfs:subClassOf obo:BTO_0001912 , obo:BTO_0004086 .

obo:BTO_0001403 a rdfs:Class ;
  rdfs:label "gastrula" ;
  rdfs:comment "An early metazoan embryo in which the ectoderm, mesoderm, and endoderm are established either by invagination of the blastula (as in fish and amphibians) to form a multilayered cellular cup with a blastopore opening into the archenteron or by differentiation of the blastodisc (as in reptiles, birds, and mammals) and inward cellular migration." .

obo:BTO_0005009 a rdfs:Class ;
  rdfs:label "stratum intermedium" ;
  rdfs:comment "The stratum intermedium in a developing tooth is a layer of two or three cells between the inner enamel epithelium and the newly forming cells of the stellate reticulum. This layer, along with the inner enamel epithelium, is responsible for the tooth enamel formation. It is a part of the dental (enamel) organ." .

obo:BTO_0000788 a rdfs:Class ;
  rdfs:label "70Z/3 cell" ;
  rdfs:comment "Mouse, (C57BL/6xDBA/2)F1, blood, leukemia, pre-B cell line." ;
  rdfs:subClassOf obo:BTO_0000603 , obo:BTO_0000743 .

obo:BTO_0004509 a rdfs:Class ;
  rdfs:label "endothelioma cell line" .

obo:BTO_0000969 a rdfs:Class ;
  rdfs:label "osteoclastoma cell" ;
  rdfs:comment "An osteolytic tumor cell affecting the metaphyses and epiphyses of long bones, composed of a stroma of spindle cells containing dispersed multinucleate giant cells, and usually being benign but sometimes malignant." ;
  rdfs:subClassOf obo:BTO_0000372 , obo:BTO_0000898 .

obo:BTO_0004479 a rdfs:Class ;
  rdfs:label "MV4-11 cell" ;
  rdfs:comment "Human acute myelocytic leukemia cell line." .

obo:BTO_0005501 a rdfs:Class ;
  rdfs:label "SW-2 cell" ;
  rdfs:comment "Human small cell lung carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0002877 a rdfs:Class ;
  rdfs:label "PC-14 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." .

obo:BTO_0003030 a rdfs:Class ;
  rdfs:label "MT-4 cell" ;
  rdfs:comment "Human T cell Lymphotropic Virus-I (HTLV-I) carrying human T cell line." ;
  rdfs:subClassOf obo:BTO_0001045 .

obo:BTO_0000619 a rdfs:Class ;
  rdfs:label "ileal mucosa" ;
  rdfs:subClassOf obo:BTO_0000642 .

obo:BTO_0002980 a rdfs:Class ;
  rdfs:label "pancreatic alpha cell line" .

obo:BTO_0002012 a rdfs:Class ;
  rdfs:label "tunica intima vasorum" ;
  rdfs:comment "The inner coat of the blood vessels, made up of endothelial cells surrounded by longitudinal elastic fibers and connective tissue." .

obo:BTO_0003380 a rdfs:Class ;
  rdfs:label "phelloderm" ;
  rdfs:comment "Tissue containing parenchyma like cells, in the bark of tree roots and shoots. Produced by cell division in the phellogen." .

obo:BTO_0001704 a rdfs:Class ;
  rdfs:label "twitch muscle" ;
  rdfs:comment "Striated muscle innervated by a single motoneuron and having an electrically excitable membrane that exhibits an all or none response; in mammals almost all skeletal muscles are twitch muscles." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0003261 a rdfs:Class ;
  rdfs:label "HCN-1A cell" ;
  rdfs:comment "A human cortical neuronal cell line, established from a 18 months old female patient that suffered from unilateral megalencephaly." ;
  rdfs:subClassOf obo:BTO_0002515 .

obo:BTO_0006347 a rdfs:Class ;
  rdfs:label "neoblast" ;
  rdfs:comment "Any large and undifferentiated stem cell in certain worms, esp planarian worms, involved in regeneration and repair." ;
  rdfs:subClassOf obo:BTO_0006078 .

obo:BTO_0003857 a rdfs:Class ;
  rdfs:label "bone marrow-derived dendritic cell" ;
  rdfs:subClassOf obo:BTO_0002042 .

obo:BTO_0002816 a rdfs:Class ;
  rdfs:label "bladder transitional cell carcinoma cell" ;
  rdfs:comment "Cancer that forms in transitional cells in the lining of the bladder." ;
  rdfs:subClassOf obo:BTO_0002815 .

obo:BTO_0005214 a rdfs:Class ;
  rdfs:label "longitudinal smooth muscle" ;
  rdfs:comment "The outer layer of the muscular coat." .

obo:BTO_0006440 a rdfs:Class ;
  rdfs:label "HCC-1438 cell" ;
  rdfs:comment "Human lung large cell tumor cell line." ;
  rdfs:subClassOf obo:BTO_0002205 .

obo:BTO_0004317 a rdfs:Class ;
  rdfs:label "immune stem cell" ;
  rdfs:comment "Hematopoietic stem cell." .

obo:BTO_0000464 a rdfs:Class ;
  rdfs:label "flagellate" ;
  rdfs:comment "A flagellate protozoan or alga." ;
  rdfs:subClassOf obo:BTO_0000720 , obo:BTO_0002503 .

obo:BTO_0003738 a rdfs:Class ;
  rdfs:label "tenia tecta" ;
  rdfs:comment "A thin layer of gray matter on the dorsal surface of the corpus callosum." .

obo:BTO_0003653 a rdfs:Class ;
  rdfs:label "olfactory glomerulus" ;
  rdfs:comment "One of the small globular masses of dense neuropil in the olfactory bulb, containing the first synapse in the olfactory pathway." .

obo:BTO_0006264 a rdfs:Class ;
  rdfs:label "LNCaP-95 cell" ;
  rdfs:comment "An androgen-independent cell line derived from the parental LNCaP cell line." .

obo:BTO_0002701 a rdfs:Class ;
  rdfs:label "midbrain central gray" ;
  rdfs:comment "Central gray matter surrounding the cerebral aqueduct in the mesencephalon. Physiologically it is probably involved in rage reactions, the lordosis reflex, feeding responses, bladder tonus, and pain." ;
  rdfs:subClassOf obo:BTO_0000823 .

obo:BTO_0005225 a rdfs:Class ;
  rdfs:label "CHO-CUR3 cell" ;
  rdfs:comment "CHO cells over-expressing hamster Menkes protein (MNK) due to gene amplification." .

obo:BTO_0006515 a rdfs:Class ;
  rdfs:label "hindleg" ;
  rdfs:comment "The posterior leg of a quadruped." ;
  rdfs:subClassOf obo:BTO_0000721 .

obo:BTO_0004037 a rdfs:Class ;
  rdfs:label "A2780/AD10 cell" ;
  rdfs:comment "Human gynecologic ovarian cancer cell line." .

obo:BTO_0002861 a rdfs:Class ;
  rdfs:label "esophageal squamous cell carcinoma cell" ;
  rdfs:comment "Squamous cell carcinoma is the most common type of esophageal cancer, accounting for 95% of all esophageal cancers worldwide." ;
  rdfs:subClassOf obo:BTO_0001577 .

obo:BTO_0006245 a rdfs:Class ;
  rdfs:label "brain capillary endothelium" .

obo:BTO_0006476 a rdfs:Class ;
  rdfs:label "synencephalon" ;
  rdfs:comment "Multi-tissue structure that is located between the dorsal diencephalon and the mesencephalon and contains the caudal commissure." .

obo:BTO_0000228 a rdfs:Class ;
  rdfs:label "C-1300 cell" ;
  rdfs:comment "Mouse neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0003684 a rdfs:Class ;
  rdfs:label "habenula" ;
  rdfs:comment "A component of the epithalamus, being the small eminence on the dorsomedial surface of the thalamus, just in front of the dorsal commissure on the lateral edge of the habenular trigone." .

obo:BTO_0001342 a rdfs:Class ;
  rdfs:label "A3 cell" ;
  rdfs:comment "Human T lymphocyte, acute T cell leukemia cell line. Morphology: lymphoblastoid. The A3 subclone was derived from a Jurkat cell line obtained from the laboratory of Gerald Crabtree at Stanford University. The Jurkat cells were treated with Fas Antibody and isolated by limiting dilution to obtain a cell line that had a low spontaneous rate of resistance to Fas-medicated apoptosis. The resulting wild-type A3 subclone is very sensitive to Fas-mediated apoptosis." .

obo:BTO_0000692 a rdfs:Class ;
  rdfs:label "culture condition:L-glucose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004106 a rdfs:Class ;
  rdfs:label "IPRI-MD-66 cell" ;
  rdfs:comment "Malacosoma disstria hemocyte line." ;
  rdfs:subClassOf obo:BTO_0001897 .

obo:BTO_0004156 a rdfs:Class ;
  rdfs:label "Ma-31 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line; established from tissue or pleural effusion of Japanese patients with advanced NSCLC." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002748 a rdfs:Class ;
  rdfs:label "BL-2 cell" ;
  rdfs:comment "Burkitt's lymphoma-derived cell line." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0002754 a rdfs:Class ;
  rdfs:label "PC6-2 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0002950 a rdfs:Class ;
  rdfs:label "Mel888 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003709 a rdfs:Class ;
  rdfs:label "RWPE-1 cell" ;
  rdfs:comment "Epithelial cells derived from the peripheral zone of a histologically normal adult human prostate were transfected with a single copy of the human papilloma virus 18 to establish the cell line." ;
  rdfs:subClassOf obo:BTO_0002398 .

obo:BTO_0003986 a rdfs:Class ;
  rdfs:label "SB-2 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003828 a rdfs:Class ;
  rdfs:label "culture condition:polyurethane foam-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002769 a rdfs:Class ;
  rdfs:label "HME cell" ;
  rdfs:comment "Human mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0005248 a rdfs:Class ;
  rdfs:label "M-07E cell" ;
  rdfs:comment "A subline of the M-07 human megakaryoblastic leukemia cell line." .

obo:BTO_0004110 a rdfs:Class ;
  rdfs:label "pyloric mucosa" .

obo:BTO_0005291 a rdfs:Class ;
  rdfs:label "culture condition:yeast extract-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004549 a rdfs:Class ;
  rdfs:label "superficial inguinal lymph node" ;
  rdfs:comment "A group of 12-20 lymph nodes that lie in the subcutaneous tissue below the inguinal ligament and along the terminal part of the great saphenous vein; they drain the skin and subcutaneous tissue of the lower abdominal wall, perineum, buttocks, external genitalia, and lower limbs." ;
  rdfs:subClassOf obo:BTO_0000784 .

obo:BTO_0000699 a rdfs:Class ;
  rdfs:label "culture condition:L-serine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000557 a rdfs:Class ;
  rdfs:label "harderian gland" ;
  rdfs:comment "An accessory lacrimal gland on the inner side of the orbit in reptiles and birds but usually degenerate in mammals." ;
  rdfs:subClassOf obo:BTO_0000044 .

obo:BTO_0004280 a rdfs:Class ;
  rdfs:label "peptonephridium" ;
  rdfs:comment "Organs opening into the buccal cavity of pharynx (supposedly modified nephridia) of invertebrates." .

obo:BTO_0002092 a rdfs:Class ;
  rdfs:label "ganglioglioma cell" ;
  rdfs:comment "A ganglioneuroma in the central nervous system." ;
  rdfs:subClassOf obo:BTO_0000526 , obo:BTO_0002093 .

obo:BTO_0003897 a rdfs:Class ;
  rdfs:label "hepatobiliary carcinoma cell" ;
  rdfs:comment "Having to do with the liver, bile ducts, and/or gallbladder." ;
  rdfs:subClassOf obo:BTO_0001326 , obo:BTO_0003237 .

obo:BTO_0000760 a rdfs:Class ;
  rdfs:label "LLC-PK1 cell" ;
  rdfs:comment "Pig normal kidney cell line, established from a 3- to 4-week-old male of sus scrofa." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0002304 a rdfs:Class ;
  rdfs:label "protoscolex" ;
  rdfs:comment "The scolex of a larval stage of the hydatid tapeworm. Morphologically it resembles the adult scolex." .

obo:BTO_0005102 a rdfs:Class ;
  rdfs:label "SCC-15 cell" ;
  rdfs:comment "Human tongue squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0002845 a rdfs:Class ;
  rdfs:label "mammary duct" ;
  rdfs:comment "Channel conveying the milk secreted by the lobes of the breast to and through the nipples." .

obo:BTO_0004583 a rdfs:Class ;
  rdfs:label "A-704 cell" ;
  rdfs:comment "Human kidney adenocarcinoma cell line, established from a 78 years old male." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0004843 a rdfs:Class ;
  rdfs:label "MyLa 2059 cell" ;
  rdfs:comment "Cutaneous T-cell lymphoma (CTCL) cell line from skin. A subline of MyLa 2039." .

obo:BTO_0000347 a rdfs:Class ;
  rdfs:label "reticulum" ;
  rdfs:comment "The second compartment of the stomach of a ruminant in which folds of the mucous membrane form hexagonal cells." ;
  rdfs:subClassOf obo:BTO_0000480 .

obo:BTO_0000654 a rdfs:Class ;
  rdfs:label "ciliary muscle" ;
  rdfs:comment "One of the muscles that relax the zonules to enable the lens to change shape for focusing. The zonules are fibers that hold the lens suspended in position and enable it to change shape during accommodation." ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0003778 a rdfs:Class ;
  rdfs:label "SAOS-alpha2beta1 cell" ;
  rdfs:comment "Human osteosarcoma cell line, overexpressing the alpha2 integrin subunit." .

obo:BTO_0002574 a rdfs:Class ;
  rdfs:label "NT2-N cell" ;
  rdfs:comment "Human neuronal (NT2N) cells derive from an NT2 human teratocarcinoma cell line." .

obo:BTO_0003475 a rdfs:Class ;
  rdfs:label "WM-35 cell" ;
  rdfs:comment "Human melanoma cell line, derived from the primary radial growth phase tumor site." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002113 a rdfs:Class ;
  rdfs:label "tela submucosa pharyngis" ;
  rdfs:comment "The tissue underlying the tunica mucosa of the pharynx." ;
  rdfs:subClassOf obo:BTO_0002107 .

obo:BTO_0002432 a rdfs:Class ;
  rdfs:label "prespore" ;
  rdfs:comment "Cell in the rear portion of the migrating slug (grex) of a cellular slime mould, which will later differentiate into spore cells. Can be recognised as having different proteins by immunocytochemical methods." .

obo:BTO_0003601 a rdfs:Class ;
  rdfs:label "plant hilum" ;
  rdfs:comment "The scar on a seed coat at the place where it was attached to its stalk during development." .

obo:BTO_0006301 a rdfs:Class ;
  rdfs:label "HepG2-N10 cell" ;
  rdfs:comment "This cell line was constructed by stable transfection of a 1.3 fold adw subtype HBV genome into HepG2 cells." .

obo:BTO_0004941 a rdfs:Class ;
  rdfs:label "KOCL-69 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0005819 a rdfs:Class ;
  rdfs:label "histaminergic neuron" ;
  rdfs:comment "Histaminergic neurons in mammalian brain are located exclusively in the tuberomamillary nucleus of the posterior hypothalamus and send their axons all over the central nervous system; The cell body of C2 is an identified histaminergic neuron in the cerebral ganglion of Aplysia." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0003749 a rdfs:Class ;
  rdfs:label "pars compacta" ;
  rdfs:comment "The large dorsal part of gray matter of the substantia nigra that is next to the tegmentum." .

obo:BTO_0002551 a rdfs:Class ;
  rdfs:label "ACH-2 cell" ;
  rdfs:comment "Chronically infected T-cell line. Human monocytic and T-lymphoid cell line, persistently infected with HIV-1." ;
  rdfs:subClassOf obo:BTO_0001586 .

obo:BTO_0005967 a rdfs:Class ;
  rdfs:label "HuTu-80 cell" ;
  rdfs:comment "Human duodenal adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0006336 a rdfs:Class ;
  rdfs:label "TMCC-2 cell" ;
  rdfs:comment "Human endometrial clear cell carcinoma cell line; established from operation material from a woman with endometrial clear cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0006334 .

obo:BTO_0002232 a rdfs:Class ;
  rdfs:label "culture condition:taurine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003317 a rdfs:Class ;
  rdfs:label "INS-1E cell" ;
  rdfs:comment "Rat insulinoma cell line, derived from parental strain INS-1." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0005486 a rdfs:Class ;
  rdfs:label "PK-9 cell" ;
  rdfs:comment "Parental and gemcitabine resistant pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0000214 a rdfs:Class ;
  rdfs:label "cell culture" ;
  rdfs:comment "Cells taken from a living organism and grown under controlled conditions (in culture). Methods used to maintain cell lines or strains." ;
  rdfs:subClassOf obo:BTO_0001490 .

obo:BTO_0006360 a rdfs:Class ;
  rdfs:label "skin squamous cell carcinoma cell" ;
  rdfs:comment "Squamous cell carcinoma of the skin is the second most common form of skin cancer, characterized by abnormal, accelerated growth of squamous cells." ;
  rdfs:subClassOf obo:BTO_0001289 .

obo:BTO_0006133 a rdfs:Class ;
  rdfs:label "forespore" ;
  rdfs:comment "A precursor of a spore; specifically: a form preceding the endospore in some bacteria and characterized by diffuse response to chromatin stains." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0003789 a rdfs:Class ;
  rdfs:label "PR-Mel cell" ;
  rdfs:comment "Human melanoma cell line, deficient of mismatch repair genes MMR." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003868 a rdfs:Class ;
  rdfs:label "protocerebrum" ;
  rdfs:comment "The anterior part of the arthropod brain." .

obo:BTO_0004873 a rdfs:Class ;
  rdfs:label "UT-SCC-118 cell" ;
  rdfs:comment "Human squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004438 .

obo:BTO_0003405 a rdfs:Class ;
  rdfs:label "mesopallium" .

obo:BTO_0006491 a rdfs:Class ;
  rdfs:label "GT-39 cell" ;
  rdfs:comment "Human EBV-associated gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0003309 a rdfs:Class ;
  rdfs:label "KMBC cell" ;
  rdfs:comment "Human cholangiocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0002636 a rdfs:Class ;
  rdfs:label "1HAEo cell" ;
  rdfs:comment "1HAEo- cells are SV40-transformed normal human airway epithelial cells." ;
  rdfs:subClassOf obo:BTO_0002637 .

obo:BTO_0004858 a rdfs:Class ;
  rdfs:label "ACT-1 cell" ;
  rdfs:comment "Human anaplastic thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0001981 a rdfs:Class ;
  rdfs:label "sebum" ;
  rdfs:comment "Fatty lubricant matter secreted by sebaceous glands of the skin." .

obo:BTO_0000841 a rdfs:Class ;
  rdfs:label "umbilical artery" ;
  rdfs:comment "Either of a pair of arteries that arise from the hypogastric arteries of the mammalian fetus and pass through the umbilical cord to the placenta to which they carry the deoxygenated blood from the fetus." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0005236 a rdfs:Class ;
  rdfs:label "culture condition:salicylate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004637 a rdfs:Class ;
  rdfs:label "urinary bladder endothelial cell" .

obo:BTO_0004052 a rdfs:Class ;
  rdfs:label "bone marrow stem cell" ;
  rdfs:comment "Bone marrow stem cells are the most primitive cells in the marrow. From them all the various types of blood cells are descended." ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0004044 a rdfs:Class ;
  rdfs:label "amacrine cell" ;
  rdfs:comment "An unipolar nerve cell found in the retina, in the olfactory bulb, and in close connection with the Purkinje cells of the cerebellum." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0005529 a rdfs:Class ;
  rdfs:label "plant hair" ;
  rdfs:comment "A common type of trichome is a hair. Plant hairs may be unicellular or multicellular, branched or unbranched. Multicellular hairs may have one or several layers of cells. Branched hairs can be dendritic (tree-like), tufted, or stellate (star-shaped)." ;
  rdfs:subClassOf obo:BTO_0001395 .

obo:BTO_0003428 a rdfs:Class ;
  rdfs:label "beta-TC6 cell" ;
  rdfs:comment "Mouse insulinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0000771 a rdfs:Class ;
  rdfs:label "macroglia" ;
  rdfs:comment "Neuroglial cells of ectodermal origin, i.e., the astrocytes and oligodendrocytes considered together. Originally, the term was used for the astrocytes alone." ;
  rdfs:subClassOf obo:BTO_0000524 , obo:BTO_0002606 .

obo:BTO_0003817 a rdfs:Class ;
  rdfs:label "culture condition:butane-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002932 a rdfs:Class ;
  rdfs:label "cholangiocarcinoma cell line" .

obo:BTO_0001725 a rdfs:Class ;
  rdfs:label "floral meristem" ;
  rdfs:comment "A meristem that gives rise to a flower." .

obo:BTO_0004910 a rdfs:Class ;
  rdfs:label "retinal pigment epithelium cell" ;
  rdfs:comment "A cell of the pigment cell layer that nourishes the retinal cells; located just outside the retina and attached to the choroid." .

obo:BTO_0004418 a rdfs:Class ;
  rdfs:label "Daltons lymphoma ascites" .

obo:BTO_0000643 a rdfs:Class ;
  rdfs:label "intestinal muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0003205 a rdfs:Class ;
  rdfs:label "salivary gland cell line" .

obo:BTO_0002421 a rdfs:Class ;
  rdfs:label "eosinophilic leukemia cell" ;
  rdfs:comment "A form of granulocytic leukemia cell line characterized by abnormal numbers of or a predomination of eosinophilic granulocytes in the tissues and blood." ;
  rdfs:subClassOf obo:BTO_0001056 .

obo:BTO_0003048 a rdfs:Class ;
  rdfs:label "neurolemma" ;
  rdfs:comment "The thin membrane spirally enwrapping the myelin layers of certain fibers, especially of peripheral nerves, or the axons of certain unmyelinated nerve fibers." ;
  rdfs:subClassOf obo:BTO_0005313 .

obo:BTO_0001790 a rdfs:Class ;
  rdfs:label "pleopod" ;
  rdfs:comment "One of the paired abdominal appendages of certain aquatic crustaceans, such as shrimp, lobsters, and isopods, that function primarily for carrying the eggs in females and are usually adapted for swimming." .

obo:BTO_0001252 a rdfs:Class ;
  rdfs:label "tibia" ;
  rdfs:comment "The shin bone: the inner and larger bone of the leg below the knee; it articulates with the femur and head of the fibula above and with the talus below." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0002540 a rdfs:Class ;
  rdfs:label "culture condition:styrene oxide-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001237 a rdfs:Class ;
  rdfs:label "sensillum" ;
  rdfs:comment "A simple epithelial sense organ of an invertebrate (as an insect) usually in the form of a spine, plate, rod, cone, or peg that is composed of one or a few cells with a nerve connection." ;
  rdfs:subClassOf obo:BTO_0000202 .

obo:BTO_0000395 a rdfs:Class ;
  rdfs:label "alveolar cell" ;
  rdfs:comment "Any cell of the walls of the pulmonary alveoli; the term is often limited to alveolar epithelial cells (type I and type II alveolar cells) and alveolar macrophages." .

obo:BTO_0000268 a rdfs:Class ;
  rdfs:label "coleoptile" ;
  rdfs:comment "The first leaf of a monocotyledon forming a protective sheath about the plumule." .

obo:BTO_0003922 a rdfs:Class ;
  rdfs:label "KHOS/NP (R-970-5) cell" ;
  rdfs:comment "Human osteosarcoma cell line; derived from HOS by transformation using Kirsten murine sarcoma virus." .

obo:BTO_0003070 a rdfs:Class ;
  rdfs:label "S2 cell" ;
  rdfs:comment "The hybridoma line S2 has been obtained by fusion of the myeloma P3x63 Ag6.653 and spleen cells from (C57 BL/6 x BALB/c) F1 female mice after a single injection of lymphoblastoid cells." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0004121 a rdfs:Class ;
  rdfs:label "HPAC cell" ;
  rdfs:comment "A pancreatic adenocarcinoma epithelial cell line derived in 1985 from a nude mouse xenograft of a primary tumor removed from the head of the pancreas of a woman with moderate to well differentiated pancreatic adenocarcinoma of ductal origin." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0004378 a rdfs:Class ;
  rdfs:label "blood vessel wall" .

obo:BTO_0003997 a rdfs:Class ;
  rdfs:label "hoof lamina" ;
  rdfs:comment "The tissues which attach the third phalanx to the hoof wall." .

obo:BTO_0006166 a rdfs:Class ;
  rdfs:label "nucleus preopticus lateralis" ;
  rdfs:comment "A nucleus of nerve cells in the preoptic area of the basal forebrain, ventral to the anterior commissure." ;
  rdfs:subClassOf obo:BTO_0003664 .

obo:BTO_0001356 a rdfs:Class ;
  rdfs:label "tendon" ;
  rdfs:comment "A tough cord or band of dense white fibrous connective tissue that unites a muscle with some other part (as a bone) and transmits the force which the muscle exerts." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0004534 a rdfs:Class ;
  rdfs:label "cystic fibrosis disease specific cell type" ;
  rdfs:comment "Cystic fibrosis affects the exocrine glands and is characterized by the production of abnormal secretions, leading to mucous build-up. This accumulation of mucus can impair the pancreas and, secondarily, the intestine. Mucous build-up in lungs tends progressively to impair respiration." .

obo:BTO_0004540 a rdfs:Class ;
  rdfs:label "papillary duct" ;
  rdfs:comment "The terminal portions of the medullary collecting ducts are the papillary ducts, which end at the renal papilla and empty into a minor calyx." .

obo:BTO_0004677 a rdfs:Class ;
  rdfs:label "basis pedunculi cerebri" ;
  rdfs:comment "The large bundle of nerve fiber tracts forming the anterior part of the cerebral peduncles, which consists of corticospinal, corticonuclear, corticopontine, parietotemporopontine, and frontopontine fibers descending from the cerebral cortex and terminating in the pons and spinal cord." .

obo:BTO_0002906 a rdfs:Class ;
  rdfs:label "NPLC/PRF/5 cell" ;
  rdfs:comment "A subline of the PLC/PRF/5 cell line." .

obo:BTO_0005194 a rdfs:Class ;
  rdfs:label "fine root" ;
  rdfs:comment "Primary roots usually <2 mm diameter that have the function of water and nutrient uptake. They are often heavily branched and support mycorrhizas. These roots may be short lived, but are replaced by the plant in an ongoing process of root 'turnover'." ;
  rdfs:subClassOf obo:BTO_0001182 .

obo:BTO_0003460 a rdfs:Class ;
  rdfs:label "HT-115 cell" ;
  rdfs:comment "Human colon carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0006435 a rdfs:Class ;
  rdfs:label "OC-314 cell" ;
  rdfs:comment "Three human cancer cell lines (OC 314, OC 315, and OC 316) were newly established in permanent culture from the ascites of patients with serous adenocarcinoma of the ovary. OC 314 was derived from an untreated tumor presenting with ascites at diagnosis." ;
  rdfs:subClassOf obo:BTO_0003804 .

obo:BTO_0001924 a rdfs:Class ;
  rdfs:label "lantern muscle" ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0004884 a rdfs:Class ;
  rdfs:label "QZG cell" ;
  rdfs:comment "Human normal liver cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0003735 a rdfs:Class ;
  rdfs:label "TUHR-25TKB cell" ;
  rdfs:comment "Human renal cell carcinoma (RCC) cell line, obtained by primary culturing of a spindle cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0002322 a rdfs:Class ;
  rdfs:label "cell property" ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0002503 a rdfs:Class ;
  rdfs:label "protozoan form" ;
  rdfs:comment "Any individual of the Protozoa." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0005765 a rdfs:Class ;
  rdfs:label "2fTGH cell" ;
  rdfs:comment "The human sarcoma cell line HT 1080 was transfected with a vector encoding the selectable marker guanine phosphoribosyltransferase regulated by alpha interferon to create the 2fTGH cell line, enabling the selection of mutations in genes encoding components of the interferon signalling pathway." .

obo:BTO_0003341 a rdfs:Class ;
  rdfs:label "CL1-1 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." .

obo:BTO_0006510 a rdfs:Class ;
  rdfs:label "MOSEC cell" ;
  rdfs:comment "Mouse ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004482 .

obo:BTO_0006035 a rdfs:Class ;
  rdfs:label "foramen magnum" ;
  rdfs:comment "The opening in the skull through which the spinal cord passes to become the medulla oblongata." .

obo:BTO_0002524 a rdfs:Class ;
  rdfs:label "HEK-293A cell" ;
  rdfs:comment "The QBI-HEK 293A cell line is an immortalized line of primary human embryonic kidney cells transformed by sheared human Ad5 DNA. QBI-HEK 293A cell line is a superior sub-clone of HEK 293 cells and strongly adheres to plastic dishes." .

obo:BTO_0002011 a rdfs:Class ;
  rdfs:label "tunica media vasorum" ;
  rdfs:comment "The middle coat of the blood vessels, made up of transverse elastic and muscle fibers." .

obo:BTO_0002395 a rdfs:Class ;
  rdfs:label "DC-3F/ADX cell" ;
  rdfs:comment "The MDR cell line DC-3F/ADX was originally selected from spontaneously transformed Chinese hamster lung fibroblasts DC-3F." .

obo:BTO_0002107 a rdfs:Class ;
  rdfs:label "submucosa" ;
  rdfs:comment "The layer of areolar tissue situated beneath the mucous membrane. The layer of loose connective tissue between the lamina muscularis mucosae and the tunica muscularis in most parts of the digestive, respiratory, urinary, and genital tracts." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0005953 a rdfs:Class ;
  rdfs:label "BT-172 cell" ;
  rdfs:comment "Primary human adult GBM line derived from a tumor resected at initial diagnosis at Brigham and Women's Hospital." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0005129 a rdfs:Class ;
  rdfs:label "A2780/S cell" ;
  rdfs:comment "Anthracycline-sensitive human ovarian carcinoma cell line." .

obo:BTO_0005808 a rdfs:Class ;
  rdfs:label "GI-ME-N cell" ;
  rdfs:comment "Human neuroblastoma cell line; established from the metastases of a bone marrow specimen of a stage IV neuroblastoma after 6 months of chemotherapy." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0002362 a rdfs:Class ;
  rdfs:label "pancreatic duct" ;
  rdfs:comment "The main excretory duct of the pancreas, which usually unites with the common bile duct before entering the duodenum at the major duodenal papilla." .

obo:BTO_0004721 a rdfs:Class ;
  rdfs:label "myeloid dendritic cell" ;
  rdfs:comment "The most common division of dendritic cells is myeloid versus plasmacytoid. The myeloid dendritic cells are developed from myeloid precursors and are most similar to monocytes. They are made up of at least two subsets: 1. the more common mDC-1, which is a major stimulator of T cells and 2. the extremely rare mDC-2, which may have a function in fighting wound infection. They secrete IL-12." ;
  rdfs:subClassOf obo:BTO_0002042 .

obo:BTO_0005859 a rdfs:Class ;
  rdfs:label "KNS-42 cell" ;
  rdfs:comment "Human astrocytic glioma cell line, isolated from the 13th subculture of cells derived from a malignant glioma in 1972 and propagated in vitro for more than 13 years without morphological transformation or contamination by microorganisms." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0004681 a rdfs:Class ;
  rdfs:label "bursa copulatrix" ;
  rdfs:comment "A thin fan or bell-shaped expansion of the cuticle of the tail of many male nematode worms that functions as a copulatory structure." ;
  rdfs:subClassOf obo:BTO_0003096 .

obo:BTO_0001281 a rdfs:Class ;
  rdfs:label "spleen" ;
  rdfs:comment "A highly vascular ductless organ that is located in the left abdominal region near the stomach or intestine of most vertebrates and is concerned with final destruction of red blood cells, filtration and storage of blood, and production of lymphocytes." ;
  rdfs:subClassOf obo:BTO_0000753 , obo:BTO_0001491 .

obo:BTO_0004612 a rdfs:Class ;
  rdfs:label "WM-793B cell" ;
  rdfs:comment "The WM793B line was established from skin taken from the primary melanoma of a vertical growth phase lesion taken from the sternum of a patient." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001606 a rdfs:Class ;
  rdfs:label "sclera" ;
  rdfs:comment "The tough white outer coat of the eyeball, covering approximately the posterior five-sixths of its surface, and continuous anteriorly with the cornea and posteriorly with the external sheath of the optic nerve." .

obo:BTO_0004525 a rdfs:Class ;
  rdfs:label "subcutaneous tissue" ;
  rdfs:comment "The layer of loose connective tissue directly under the skin." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0000503 a rdfs:Class ;
  rdfs:label "gastric gland" ;
  rdfs:comment "Any of various glands in the walls of the stomach that secrete gastric juice." .

obo:BTO_0005118 a rdfs:Class ;
  rdfs:label "RGC-5 cell" ;
  rdfs:comment "Murine retinal ganglion cell line." ;
  rdfs:subClassOf obo:BTO_0005117 .

obo:BTO_0002652 a rdfs:Class ;
  rdfs:label "hemangioendothelioma cell line" .

obo:BTO_0004388 a rdfs:Class ;
  rdfs:label "common cardinal vein" ;
  rdfs:comment "Either of a pair of large transverse venous sinuses that conduct blood from the cardinal veins to the sinus venosus of the vertebrate embryo." ;
  rdfs:subClassOf obo:BTO_0004385 .

obo:BTO_0002624 a rdfs:Class ;
  rdfs:label "spinal muscle of thorax" ;
  rdfs:comment "Origin: spinous processes of two upper lumbar and two lower thoracic; insertion: spines of upper thoracic vertebrae; innervation: branches of spinal nerves; action: extends vertebral column." ;
  rdfs:subClassOf obo:BTO_0002621 .

obo:BTO_0005591 a rdfs:Class ;
  rdfs:label "mesolimbic dopaminergic system" ;
  rdfs:comment "The mesolimbic dopaminergic system includes the ventral tegmental area that project mainly to the nucleus accumbens as well as the olfactory tubercle innervating the septum, amygdala and hippocampus." .

obo:BTO_0002355 a rdfs:Class ;
  rdfs:label "calcaneal bone" ;
  rdfs:comment "The irregular quadrangular bone at the back of the tarsus." ;
  rdfs:subClassOf obo:BTO_0002343 .

obo:BTO_0006005 a rdfs:Class ;
  rdfs:label "brachial nerve" ;
  rdfs:comment "The brachial nerve of an octopus travels out to innervate the arms, that means more precisely to connect the nervous system of the head and the nervous system of the arms." ;
  rdfs:subClassOf obo:BTO_0000925 .

obo:BTO_0004974 a rdfs:Class ;
  rdfs:label "Hodgkin lymphoma cell" ;
  rdfs:comment "A disease of the lymph nodes named after the English physician Thomas Hodgkin." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0000612 a rdfs:Class ;
  rdfs:label "hypha" ;
  rdfs:comment "1: One of the filaments or threads composing the mycelium of a fungus. 2: Branching filamentous outgrowths produced by certain bacteria (e.g., Actinomyces, Hyphomicrobium), sometimes forming a mycelium." .

obo:BTO_0001882 a rdfs:Class ;
  rdfs:label "ovary adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000167 , obo:BTO_0000811 .

obo:BTO_0001468 a rdfs:Class ;
  rdfs:label "xylem" ;
  rdfs:comment "A complex tissue in the vascular system of higher plants that consists of vessels, tracheids, or both usually together with wood fibers and parenchyma cells, functions chiefly in conduction of water and dissolved minerals but also in support and food storage, and typically constitutes the woody element." .

obo:BTO_0002872 a rdfs:Class ;
  rdfs:label "embryonic hippocampal cell line" ;
  rdfs:subClassOf obo:BTO_0002871 , obo:BTO_0003036 .

obo:BTO_0004269 a rdfs:Class ;
  rdfs:label "liver cancer stem cell" ;
  rdfs:subClassOf obo:BTO_0004254 .

obo:BTO_0002721 a rdfs:Class ;
  rdfs:label "BC-2 cell" ;
  rdfs:comment "PEL cell line carrying the Epstein-Barr virus (EBV) infection." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0002272 a rdfs:Class ;
  rdfs:label "merozoite" ;
  rdfs:comment "A protozoan cell that arises from the schizogony of a parent sporozoan and may enter either the asexual or sexual phase of the life cycle." ;
  rdfs:subClassOf obo:BTO_0000749 .

obo:BTO_0003254 a rdfs:Class ;
  rdfs:label "DPK-SKDF-H cell" ;
  rdfs:comment "Normal human dermal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0003470 a rdfs:Class ;
  rdfs:label "BT-483 cell" ;
  rdfs:comment "Homo sapiens (human) mammary gland breast ductal carcinoma cell line, established from a 23 year old caucasian female." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0003373 a rdfs:Class ;
  rdfs:label "gametangium" ;
  rdfs:comment "A structure in which gametes are produced." .

obo:BTO_0000908 a rdfs:Class ;
  rdfs:label "myrosin cell" ;
  rdfs:comment "Cell containing glucosinolates (mustard oil glucosides) and myrosinases, enzymes hydrolyzing the glucosinolates. Occur in eleven dicotyledon families, the two largest of which are the Brassicaceae and Euphorbiaceae." .

obo:BTO_0000203 a rdfs:Class ;
  rdfs:label "respiratory system" ;
  rdfs:comment "A system of organs subserving the function of respiration and in air-breathing vertebrates consisting typically of the lungs and their nervous and circulatory supply and the channels by which these are continuous with the outer air." .

obo:BTO_0003633 a rdfs:Class ;
  rdfs:label "colonic adenoma cell" ;
  rdfs:subClassOf obo:BTO_0000178 .

obo:BTO_0003219 a rdfs:Class ;
  rdfs:label "TMK-1 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0001689 a rdfs:Class ;
  rdfs:label "axillary bud" ;
  rdfs:comment "The axillary bud is a bud that develops in the axil of a plant." ;
  rdfs:subClassOf obo:BTO_0000158 .

obo:BTO_0003911 a rdfs:Class ;
  rdfs:label "HuCCT-1 cell" ;
  rdfs:comment "Human liver bile duct carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002932 .

obo:BTO_0003216 a rdfs:Class ;
  rdfs:label "melan-a cell" ;
  rdfs:comment "Melan-a cells are an immortal pigmented mouse cell line, cultured from epidermal melanoblasts from embryos of inbred C57BL mice." .

obo:BTO_0003081 a rdfs:Class ;
  rdfs:label "pancreatic ductal adenocarcinoma cell" ;
  rdfs:subClassOf obo:BTO_0000604 , obo:BTO_0002363 .

obo:BTO_0000435 a rdfs:Class ;
  rdfs:label "stratum spinosum" ;
  rdfs:comment "The layers of prickle cells over the layer of the stratum germinativum capable of undergoing mitosis." .

obo:BTO_0004367 a rdfs:Class ;
  rdfs:label "lateral geniculate body" ;
  rdfs:comment "The lateral one of a pair of small oval masses that protrude slightly from the posteroinferior aspects of the thalamus; its main (dorsal) subdivision serves as a processing station in the major pathway from the retina to the cerebral cortex, receiving fibres from the optic tract and giving rise to the geniculocalcarine radiation to the visual cortex in the occipital lobe." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0006229 a rdfs:Class ;
  rdfs:label "MDS-L cell" ;
  rdfs:comment "Human myelodysplastic syndrome-derived cell line. Myelodysplastic syndromes are a group of cancers in which immature blood cells in the bone marrow do not mature and therefore do not become healthy blood cells." ;
  rdfs:subClassOf obo:BTO_0000906 .

obo:BTO_0001826 a rdfs:Class ;
  rdfs:label "T-lymphoblast" ;
  rdfs:subClassOf obo:BTO_0000772 .

obo:BTO_0000554 a rdfs:Class ;
  rdfs:label "hair follicle" ;
  rdfs:comment "The tubular epithelial sheath that surrounds the lower part of the hair shaft and encloses at the bottom a vascular papilla supplying the growing basal part of the hair with nourishment." ;
  rdfs:subClassOf obo:BTO_0001470 .

obo:BTO_0001516 a rdfs:Class ;
  rdfs:label "BA/F3 cell" ;
  rdfs:comment "Mouse pro B cell line. IL-3 dependent murine pro B cell line established from peripheral blood; apparently derived from BALB/c mouse." ;
  rdfs:subClassOf obo:BTO_0000743 .

obo:BTO_0003884 a rdfs:Class ;
  rdfs:label "HMT-3522 cell" ;
  rdfs:comment "Non-tumorigenic immortalized human breast epithelial cell line, derived from a fibrocystic breast lesion." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0003041 a rdfs:Class ;
  rdfs:label "Ishikawa cell" ;
  rdfs:comment "The cell line Ishikawa was established from an endometrial adenocarcinoma from a 39-year-old Asian woman." ;
  rdfs:subClassOf obo:BTO_0003040 .

obo:BTO_0000741 a rdfs:Class ;
  rdfs:label "lymphocytic leukemia cell line" ;
  rdfs:subClassOf obo:BTO_0000737 .

obo:BTO_0002585 a rdfs:Class ;
  rdfs:label "WE-480 cell" ;
  rdfs:comment "Colorectal adenocarcinoma cell line." .

obo:BTO_0004222 a rdfs:Class ;
  rdfs:label "SNB-75 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0002146 a rdfs:Class ;
  rdfs:label "CAL-62 cell" ;
  rdfs:comment "Human thyroid anaplastic carcinoma cell line, established from the thyroid gland (right lobe) of a 70-year-old woman with thyroid anaplastic carcinoma in 1988; described as being tumorigenic in heterotransplanted nude mice." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0000167 a rdfs:Class ;
  rdfs:label "adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000297 .

obo:BTO_0001457 a rdfs:Class ;
  rdfs:label "hip" ;
  rdfs:comment "The laterally projecting region of each side of the lower or posterior part of the mammalian trunk formed by the lateral parts of the pelvis and upper part of the femur together with the fleshy parts covering them." .

obo:BTO_0006521 a rdfs:Class ;
  rdfs:label "SK-MM-1 cell" ;
  rdfs:comment """Human plasma cell leukemia cell line,
established in 1981 from the bone marrow of a 55-year-old man with plasma cell leukemia at relapse after chemotherapy.""" ;
  rdfs:subClassOf obo:BTO_0000456 .

obo:BTO_0002333 a rdfs:Class ;
  rdfs:label "Mono-Mac-6 cell" ;
  rdfs:comment "Human acute monocytic leukemia cell line; established from the peripheral blood of a 64-year-old man with relapsed acute monocytic leukemia (AML FAB M5) in 1985 following myeloid metaplasia. Sister cell line of MONO-MAC-1." ;
  rdfs:subClassOf obo:BTO_0002332 .

obo:BTO_0006397 a rdfs:Class ;
  rdfs:label "HCM cell" ;
  rdfs:comment "Primary Human Cardiac Myocytes isolated from the ventricles of the adult heart." ;
  rdfs:subClassOf obo:BTO_0003324 .

obo:BTO_0004498 a rdfs:Class ;
  rdfs:label "THCE cell" ;
  rdfs:comment "Telomerase-immortalized human corneal epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0003221 .

obo:BTO_0004761 a rdfs:Class ;
  rdfs:label "TF-1 BCR-ABL cell" ;
  rdfs:comment "We used TF-1 BCR/ABL cells, by introducing the BCR/ABL gene into the TF-1 leukemia cell line." .

obo:BTO_0003389 a rdfs:Class ;
  rdfs:label "nidopallium" ;
  rdfs:comment "The nidopallium, meaning nested pallium, is the region of the avian brain that is used mostly for some types of executive functions but also other higher cognitive tasks. The region was renamed to nidopallium in 2002 during the Avian Brain Nomenclature Consortium because the prior name suggested that the region was used for more primitive functions." .

obo:BTO_0000580 a rdfs:Class ;
  rdfs:label "blood cancer cell" ;
  rdfs:comment "The major forms of blood cancer are lymphoma, leukemia and multiple myeloma. They affect the way a body makes blood and provides immunity from other diseases." .

obo:BTO_0006197 a rdfs:Class ;
  rdfs:label "KYSE-140 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line; derived from the moderately differentiated invasive esophageal squamous cell carcinoma resected from middle intra-thoracic esophagus of a 54-year-old Japanese man prior to treatment." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0004638 a rdfs:Class ;
  rdfs:label "peribronchial gland" ;
  rdfs:comment "There are serous cells in the peribronchial gland of the lung." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0004230 a rdfs:Class ;
  rdfs:label "TM-4 cell" ;
  rdfs:comment "Mouse testicular Sertoli cell line." ;
  rdfs:subClassOf obo:BTO_0004513 .

obo:BTO_0003700 a rdfs:Class ;
  rdfs:label "C1R-B27 cell" ;
  rdfs:comment "Human C1R cell line, that stably expresses the HLA-B27 molecule." .

obo:BTO_0003500 a rdfs:Class ;
  rdfs:label "OVMANA cell" ;
  rdfs:comment "Human ovarian carcinoma cell line from clear cell adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0006415 .

obo:BTO_0001148 a rdfs:Class ;
  rdfs:label "BALL-1 cell" ;
  rdfs:comment "Human acute lymphoblastoid leukemia cell line from peripheral blood." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0000576 a rdfs:Class ;
  rdfs:label "B-16 cell" ;
  rdfs:comment "Mouse melanoma tumor cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002991 a rdfs:Class ;
  rdfs:label "glandular epithelium" ;
  rdfs:comment "Epithelium composed of secretory cells." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0001171 a rdfs:Class ;
  rdfs:label "spore" ;
  rdfs:comment "A primitive usually unicellular often environmentally resistant dormant or reproductive body produced by plants and some microorganisms and capable of development into a new individual either directly or after fusion with another spore." ;
  rdfs:subClassOf obo:BTO_0000284 , obo:BTO_0000720 .

obo:BTO_0003442 a rdfs:Class ;
  rdfs:label "CCD-43Sk cell" ;
  rdfs:comment "Human skin normal fibroblast cell line, established from a 1 week old caucasian male." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0004757 a rdfs:Class ;
  rdfs:label "arterial endothelium" ;
  rdfs:subClassOf obo:BTO_0000766 .

obo:BTO_0004458 a rdfs:Class ;
  rdfs:label "LN-340 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005993 a rdfs:Class ;
  rdfs:label "basal swimming muscle" ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0001476 a rdfs:Class ;
  rdfs:label "mitotic cell" ;
  rdfs:comment "A cell that undergoes mitosis: a process that takes place in the nucleus of a dividing cell, involves typically a series of steps consisting of prophase, metaphase, anaphase, and telophase, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus." ;
  rdfs:subClassOf obo:BTO_0001434 .

obo:BTO_0000816 a rdfs:Class ;
  rdfs:label "breast cell line" .

obo:BTO_0006542 a rdfs:Class ;
  rdfs:label "NEC-8 cell" ;
  rdfs:comment "Human testicular germ cell tumor cell line." ;
  rdfs:subClassOf obo:BTO_0004229 .

obo:BTO_0001887 a rdfs:Class ;
  rdfs:label "heart primordium" ;
  rdfs:subClassOf obo:BTO_0001886 .

obo:BTO_0002237 a rdfs:Class ;
  rdfs:label "ectomycorrhiza" ;
  rdfs:comment "Ectomycorrhizae are organs where the fungus hyphae are mostly in the outer tissues of the non-woody root." ;
  rdfs:subClassOf obo:BTO_0000893 .

obo:BTO_0004702 a rdfs:Class ;
  rdfs:label "ventral striatum" ;
  rdfs:comment "Those portions of the striatum located generally inferior to a plane representing the anterior commissure; includes the nucleus accumbens and some nuclei of the olfactory tubercle; may function in motor activities with emotional or motivational origins." .

obo:BTO_0003981 a rdfs:Class ;
  rdfs:label "SAS cell" ;
  rdfs:comment "Human tongue squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000786 .

obo:BTO_0000304 a rdfs:Class ;
  rdfs:label "PANC-1 cell" ;
  rdfs:comment "Human, Caucasian, pancreas, carcinoma cell line. Established from a pancreatic carcinoma of ductal origin from a 56-year-old Caucasian male. Cells possess the type B phenotype for G6PD." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0002712 a rdfs:Class ;
  rdfs:label "UM-SCC-22B cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0005309 a rdfs:Class ;
  rdfs:label "mTOP2beta-4 cell" ;
  rdfs:comment "Immortalized mouse embryonic fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0004085 a rdfs:Class ;
  rdfs:label "HOP-92 cell" ;
  rdfs:comment "Non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0004993 a rdfs:Class ;
  rdfs:label "UM-UC-5 cell" ;
  rdfs:comment "Human squamous cell carcinoma of the bladder; obtained by transurethral resection of a bladder squamous cell carcinoma found in a female patient." ;
  rdfs:subClassOf obo:BTO_0003776 .

obo:BTO_0003120 a rdfs:Class ;
  rdfs:label "atherosclerotic plaque" ;
  rdfs:comment "A buildup of cholesterol and fatty material within a blood vessel due to the effects of atherosclerosis. A fatty deposit in the intima (inner lining) of an artery, resulting from atherosclerosis." .

obo:BTO_0000332 a rdfs:Class ;
  rdfs:label "culture condition:dark-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001052 a rdfs:Class ;
  rdfs:label "ND-1 cell" ;
  rdfs:comment "Prostate carcinoma cell line." .

obo:BTO_0003481 a rdfs:Class ;
  rdfs:label "NKB-1 cell" ;
  rdfs:comment "Human bladder cancer cell line, established from a residual transitional cell carcinoma following MEC (methotrexate, farmorubicin and cisplatin) chemotherapy in a 64-year-old female." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0002641 a rdfs:Class ;
  rdfs:label "CHO-AA8 cell" ;
  rdfs:comment "This line is a derivative of the CHO-K1 cell line. The AA8 line has 21 chromosomes and is heterozygous at the aprt locus." .

obo:BTO_0004817 a rdfs:Class ;
  rdfs:label "extraradical hypha" ;
  rdfs:comment "Extraradical hypha, of arbuscular mycorrhizal fungi, are formed outside roots and absorbing nutrients from the soil and binding its grains into aggregates." ;
  rdfs:subClassOf obo:BTO_0000612 .

obo:BTO_0003529 a rdfs:Class ;
  rdfs:label "SV68 c-IS cell" ;
  rdfs:comment "Immortalized murine hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0006271 a rdfs:Class ;
  rdfs:label "endometrial gland cell line" .

obo:BTO_0003873 a rdfs:Class ;
  rdfs:label "follicular adenoma cell" ;
  rdfs:comment "Adenoma of the thyroid in which the cells are arranged in the form of follicles." ;
  rdfs:subClassOf obo:BTO_0000178 , obo:BTO_0001888 .

obo:BTO_0002925 a rdfs:Class ;
  rdfs:label "tracheobronchial epithelium" ;
  rdfs:comment "Epithelium pertaining to the trachea and bronchi." ;
  rdfs:subClassOf obo:BTO_0000419 .

obo:BTO_0002566 a rdfs:Class ;
  rdfs:label "OVCA-433 cell" ;
  rdfs:comment "Human epithelial ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004009 a rdfs:Class ;
  rdfs:label "lateral mammillary nucleus" ;
  rdfs:comment "A component of the mammillary body." .

obo:BTO_0000250 a rdfs:Class ;
  rdfs:label "chondrosarcoma cell" ;
  rdfs:comment "Chondrosarcoma is a malignant tumor derived from cartilage cells or their precursors, but lacking direct osteoid formation; it occurs predominantly in the pelvis, femur, and shoulder girdle in middle-aged to older adults. It may be primary, arising from cartilage cells, or secondary to a pre-existing benign lesion." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0003540 a rdfs:Class ;
  rdfs:label "P4E6 cell" ;
  rdfs:comment "Nonmalignant human prostate cell line." ;
  rdfs:subClassOf obo:BTO_0001019 .

obo:BTO_0002033 a rdfs:Class ;
  rdfs:label "EFO-27 cell" ;
  rdfs:comment "Human ovary adenocarcinoma cell line; established from the solid omental metastasis of a mucinous papillary adenocarcinoma of the ovary of a 36-year-old woman in 1979." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0003559 a rdfs:Class ;
  rdfs:label "rMC-1 cell" ;
  rdfs:comment "Retinal rat Mueller cell line." ;
  rdfs:subClassOf obo:BTO_0003063 .

obo:BTO_0003453 a rdfs:Class ;
  rdfs:label "dentin" ;
  rdfs:comment "The calcified tissue below the enamel, enclosing the cavity of the tooth containing the pulp chamber and root canals." .

obo:BTO_0001624 a rdfs:Class ;
  rdfs:label "femoral artery" ;
  rdfs:comment "The main artery of the thigh, supplying blood to the groin and lower extremity." ;
  rdfs:subClassOf obo:BTO_0000573 .

obo:BTO_0004768 a rdfs:Class ;
  rdfs:label "MUTZ-8 cell" ;
  rdfs:comment "Acute myeloid leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004626 a rdfs:Class ;
  rdfs:label "carotid artery endothelium" ;
  rdfs:subClassOf obo:BTO_0001853 .

obo:BTO_0005931 a rdfs:Class ;
  rdfs:label "CEM-C2 cell" ;
  rdfs:comment "CEM is a camptothecin (CPT) resistant derivative of the human T cell leukemia cell line CCRF-CEM. The cell line was selected and subcloned in 1991 for resistance to CPT. Established from an 4-year-old caucasian female with acute lymphoblastic leukemia." .

obo:BTO_0005208 a rdfs:Class ;
  rdfs:label "right middle cerebral artery" ;
  rdfs:comment "The left and right middle cerebral arteries rise from trifurcations of the internal carotid arteries and thus are connected to the anterior cerebral arteries and the posterior communicating arteries, which connect to the posterior cerebral arteries." .

obo:BTO_0004241 a rdfs:Class ;
  rdfs:label "ovariole" ;
  rdfs:comment "One of the tubes of which the ovaries of most insects are composed; Each of the two ovaries consists of a number of ovarioles. The ovarioles converge upon the two oviducts, and the oviducts unite to form a common oviduct down which the ripe eggs are discharged. Each ovariole consists of a germarium and a series of ovarial follicles." .

obo:BTO_0005744 a rdfs:Class ;
  rdfs:label "vegetative stage" ;
  rdfs:comment "The pre-flowering stage of a plant." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0001938 a rdfs:Class ;
  rdfs:label "U2-OS cell" ;
  rdfs:comment "Human osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0006111 a rdfs:Class ;
  rdfs:label "M2 macrophage" ;
  rdfs:comment "Macrophages that decrease inflammation and encourage tissue repair. M2 is the phenotype of resident tissue macrophages, and can be further elevated by IL-4. M2 macrophages produce high levels of IL-10, TGF-beta and low levels of IL-12. Tumor-associated macrophages are mainly of the M2 phenotype, and seem to actively promote tumor growth." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0006317 a rdfs:Class ;
  rdfs:label "plant rachis" ;
  rdfs:comment "The main axis or stem of an inflorescence or compound leaf." .

obo:BTO_0000341 a rdfs:Class ;
  rdfs:label "diaphragm" ;
  rdfs:comment "The thin muscle below the lungs and heart that separates the chest from the abdomen." ;
  rdfs:subClassOf obo:BTO_0000508 .

obo:BTO_0003467 a rdfs:Class ;
  rdfs:label "HS-294T cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005270 a rdfs:Class ;
  rdfs:label "HAoAF cell" ;
  rdfs:comment "Human aortic adventitial fibroblast cell line, isolated from human aortic adventitial tissue." ;
  rdfs:subClassOf obo:BTO_0000453 .

obo:BTO_0003948 a rdfs:Class ;
  rdfs:label "distal tubular epithelium" .

obo:BTO_0000055 a rdfs:Class ;
  rdfs:label "pars recta" ;
  rdfs:comment "Proximal straight tubule: part of the descending limb of the renal tubule, extending from the proximal convoluted tubule to the thin tubule." .

obo:BTO_0002344 a rdfs:Class ;
  rdfs:label "electrocyte" ;
  rdfs:comment "A modified striated muscle cell that does not contract, but produces electric signals; the component of the electric organ in some fish." ;
  rdfs:subClassOf obo:BTO_0002916 .

obo:BTO_0005310 a rdfs:Class ;
  rdfs:label "mTOP2beta-5 cell" ;
  rdfs:comment "Immortalized mouse embryonic fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0003895 a rdfs:Class ;
  rdfs:label "HaCa-4 cell" ;
  rdfs:comment "Mouse skin squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002024 , obo:BTO_0003894 .

obo:BTO_0001165 a rdfs:Class ;
  rdfs:label "renal artery" ;
  rdfs:comment "A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters." ;
  rdfs:subClassOf obo:BTO_0000573 , obo:BTO_0000671 .

obo:BTO_0002254 a rdfs:Class ;
  rdfs:label "vas efferens" ;
  rdfs:comment "Any of a number of small ducts that carry semen from the testis to the epididymis." ;
  rdfs:subClassOf obo:BTO_0003096 .

obo:BTO_0000531 a rdfs:Class ;
  rdfs:label "gluteal muscle" ;
  rdfs:comment "Any one of three large skeletal muscles that form the buttock and move the thigh." ;
  rdfs:subClassOf obo:BTO_0000722 , obo:BTO_0001261 .

obo:BTO_0005668 a rdfs:Class ;
  rdfs:label "DMS-53 cell" ;
  rdfs:comment "Human small cell lung cancer cell line, established from a 54 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005348 a rdfs:Class ;
  rdfs:label "UKRV-Mel-21a cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004381 a rdfs:Class ;
  rdfs:label "prelimbic cortex" ;
  rdfs:comment "An area of frontal cortex of the rat, located on the medial wall." .

obo:BTO_0004952 a rdfs:Class ;
  rdfs:label "MV-522 cell" ;
  rdfs:comment "Human non-small cell lung adenocarcinoma cell line. This cell line is of high metastatic potential. It is a high metastatic variant of UCP-3." .

obo:BTO_0001927 a rdfs:Class ;
  rdfs:label "WEGLI18 cell" ;
  rdfs:comment "Human hybridoma cell line." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0000412 a rdfs:Class ;
  rdfs:label "epiphyseal growth plate" ;
  rdfs:comment "The disk or plate of cartilage interposed between the epiphysis and the shaft of the bone during the period of growth; by its growth the bone increases in length." ;
  rdfs:subClassOf obo:BTO_0000206 .

obo:BTO_0004599 a rdfs:Class ;
  rdfs:label "TE-13 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0002373 a rdfs:Class ;
  rdfs:label "glioblastoma multiforme cell" ;
  rdfs:comment "A type of tumor that forms from glial (supportive) tissue in the brain. It is highly malignant, grows very quickly, and has cells that look quite different from normal glial cells. Early symptoms may include sleepiness, headache, and vomiting." ;
  rdfs:subClassOf obo:BTO_0000527 .

obo:BTO_0003232 a rdfs:Class ;
  rdfs:label "BT-325 cell" ;
  rdfs:comment "Human glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0005710 a rdfs:Class ;
  rdfs:label "M5 melanoma cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0002943 a rdfs:Class ;
  rdfs:label "FO-1 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004447 a rdfs:Class ;
  rdfs:label "C38 cell" ;
  rdfs:comment "The S9 cell line and the C38 cell line were derived from the IB3-1 cell line." .

obo:BTO_0004649 a rdfs:Class ;
  rdfs:label "fin" ;
  rdfs:comment "An external membranous process of an aquatic animal as a fish used in propelling or guiding the body." .

obo:BTO_0004619 a rdfs:Class ;
  rdfs:label "OCI-AML2 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established from the peripheral blood of a 65-year-old man with acute myeloid leukemia." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004468 a rdfs:Class ;
  rdfs:label "lip epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0002177 a rdfs:Class ;
  rdfs:label "PR cell" ;
  rdfs:comment "Osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002899 a rdfs:Class ;
  rdfs:label "K-1034 RPE cell" ;
  rdfs:comment "Human retinal pigment epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002334 .

obo:BTO_0006379 a rdfs:Class ;
  rdfs:label "ALC cell" .

obo:BTO_0006209 a rdfs:Class ;
  rdfs:label "HIPEC-65 cell" ;
  rdfs:comment "The cell line human invasive proliferative extravillous cytotrophoblast 65 expresses markers of human invasive primary cytotrophoblast as determined by immunocytochemistry, immunobloting and real-time RT-PCR, and is highly invasive in vitro." ;
  rdfs:subClassOf obo:BTO_0005020 .

obo:BTO_0002674 a rdfs:Class ;
  rdfs:label "medial geniculate body" ;
  rdfs:comment "The medial group of a pair of prominent cell groups in the posteroinferior aspects of the thalamus, serving as the last of a series of processing stations along the auditory conduction pathway to the cerebral cortex." ;
  rdfs:subClassOf obo:BTO_0002452 .

obo:BTO_0000438 a rdfs:Class ;
  rdfs:label "stratum germinativum" ;
  rdfs:comment "The innermost layer of the epidermis consisting of a single row of columnar or cuboidal epithelial cells that continually divide and replace the rest of the epidermis as it wears away." .

obo:BTO_0002968 a rdfs:Class ;
  rdfs:label "SK-MEL-93 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0002163 a rdfs:Class ;
  rdfs:label "gymnothecium" ;
  rdfs:comment "A type of fruiting body (ascocarp) composed of a loose network of mycelia through which ascospores filter and are released at maturity; its reproductive organs are in the form of naked asci. Seen in fungi of the family Gymnoascaceae." ;
  rdfs:subClassOf obo:BTO_0002161 .

obo:BTO_0003933 a rdfs:Class ;
  rdfs:label "MM1-S cell" ;
  rdfs:comment "Human B lymphoblast multiple myeloma cell line." .

obo:BTO_0001110 a rdfs:Class ;
  rdfs:label "prepupa" ;
  rdfs:comment "1: An inactive stage just before the pupa in the development of certain insects. 2:The form of an insect in this stage." ;
  rdfs:subClassOf obo:BTO_0001143 .

obo:BTO_0005125 a rdfs:Class ;
  rdfs:label "sternocleidomastoid muscle" ;
  rdfs:comment "In human anatomy is a paired muscle in the superficial layers of the anterior portion of the neck. It acts to flex and rotate the head." ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0001339 a rdfs:Class ;
  rdfs:label "synovia" ;
  rdfs:comment "A transparent viscid lubricating fluid secreted by a membrane of an articulation, bursa, or tendon sheath." .

obo:BTO_0003598 a rdfs:Class ;
  rdfs:label "uterine endometrial stromal sarcoma cell" ;
  rdfs:comment "A rare type of uterine cancer that forms in muscle or other tissues of the uterus. It usually occurs after menopause. The two main types are leiomyosarcoma (cancer that begins in smooth muscle cells) and endometrial stromal sarcoma (cancer that begins in connective tissue cells)." ;
  rdfs:subClassOf obo:BTO_0003596 .

obo:BTO_0002850 a rdfs:Class ;
  rdfs:label "theca cell" ;
  rdfs:comment "Lutein cell derived from the theca interna." .

obo:BTO_0000579 a rdfs:Class ;
  rdfs:label "eye cancer cell" ;
  rdfs:comment "A cell of a cancerous growth in any part of the eye." .

obo:BTO_0000026 a rdfs:Class ;
  rdfs:label "culture condition:galactose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003492 a rdfs:Class ;
  rdfs:label "PLC-PRF-5 cell" ;
  rdfs:comment "Human malignant liver hepatoma cell line; established from a 24-years-old human male. The line was originally contaminated with mycoplasma, and was cured by treatment with BM-cycline. The cells secrete HBsAg." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0002557 a rdfs:Class ;
  rdfs:label "HOSE-B cell" ;
  rdfs:comment "Human ovarian surface epithelial (HOSE) cells as a model for ovarian carcinogenesis. Two cultures from two different patients were established, HOSE-A and HOSE-B." ;
  rdfs:subClassOf obo:BTO_0002555 .

obo:BTO_0004688 a rdfs:Class ;
  rdfs:label "regio orbitalis" ;
  rdfs:comment "The region about the orbit." .

obo:BTO_0005090 a rdfs:Class ;
  rdfs:label "inner chondrogenic layer of perichondrium" ;
  rdfs:comment "The perichondrium consists of two separate layers: an outer fibrous layer and inner chondrogenic layer. The chondrogenic layer remains undifferentiated and can form chondroblasts or chondrocytes." .

obo:BTO_0001479 a rdfs:Class ;
  rdfs:label "culture condition:-grown cell" ;
  rdfs:subClassOf obo:BTO_0000216 .

obo:BTO_0006459 a rdfs:Class ;
  rdfs:label "KMS-12-BM cell" ;
  rdfs:comment "Human multiple myeloma cell line, established from the bone marrow of a 64-year-old woman with multiple myeloma in 1988; sister cell line of KMS-12-PE." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0001584 a rdfs:Class ;
  rdfs:label "G-361 cell" ;
  rdfs:comment "Homo sapiens (human); skin; malignant melanoma cell line; established from a 31 year old caucasian male." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006364 a rdfs:Class ;
  rdfs:label "Pfeiffer cell" ;
  rdfs:comment "Human non-Hodgkin lymphoma cell line, established in 1992 from a patient in the leukemic phase of diffuse large cell lymphoma (DLCL) with cleaved and non-cleaved nuclei." ;
  rdfs:subClassOf obo:BTO_0002904 , obo:BTO_0006365 .

obo:BTO_0002827 a rdfs:Class ;
  rdfs:label "SK-N-AS cell" ;
  rdfs:comment "Human, bone marrow, neuroblastoma cell line. Derived from a female patient with neuroblastoma from the metastasis of the bone marrow." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0006535 a rdfs:Class ;
  rdfs:label "gill cell line" .

obo:BTO_0004716 a rdfs:Class ;
  rdfs:label "null cell" ;
  rdfs:comment "A null cell is a large granular lymphocyte without surface markers or membrane-associated proteins from B lymphocytes or T lymphocytes. Members of null cells are natural killer cells, antigen dependent cytotoxic cells and the lymphokine activated killer cells." ;
  rdfs:subClassOf obo:BTO_0000775 .

obo:BTO_0003783 a rdfs:Class ;
  rdfs:label "rectal adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0001914 .

obo:BTO_0003447 a rdfs:Class ;
  rdfs:label "cavum septum pellucidum" ;
  rdfs:comment "Space enclosed within the laminae of the septum pelludicum, the membranous partition that separates the frontal horns of the ventricle." .

obo:BTO_0002215 a rdfs:Class ;
  rdfs:label "LN-319 cell" ;
  rdfs:comment "Anaplastic astrocytoma cell line." ;
  rdfs:subClassOf obo:BTO_0000101 .

obo:BTO_0000360 a rdfs:Class ;
  rdfs:label "posterior spinal root" ;
  rdfs:comment "The sensory division of each spinal nerve, attached centrally to the spinal cord and joining peripherally with the anterior (motor) root to form the nerve before it emerges through the intervertebral foramen: each posterior root bears a spinal ganglion and conveys sensory fibers to the spinal cord. There are 31 anterior and 31 posterior nerve roots: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal." .

obo:BTO_0001070 a rdfs:Class ;
  rdfs:label "pitcher secretion" .

obo:BTO_0004559 a rdfs:Class ;
  rdfs:label "sublingual gland duct epithelium" .

obo:BTO_0005326 a rdfs:Class ;
  rdfs:label "culture condition:lactose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005988 a rdfs:Class ;
  rdfs:label "CHO-Lec4 cell" ;
  rdfs:comment "Chinese hamster ovary glycosylation mutant with no detectable N-acetylglucosaminyltransferase V activity." .

obo:BTO_0004132 a rdfs:Class ;
  rdfs:label "IOSE-29 cell" ;
  rdfs:comment "Immortalized not tumorigenic human ovarian surface epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004130 .

obo:BTO_0001132 a rdfs:Class ;
  rdfs:label "shoot base" .

obo:BTO_0000591 a rdfs:Class ;
  rdfs:label "N1-S1 cell" ;
  rdfs:comment "The N1-S1 cell line was established from a Novikoff hepatoma induced by feeding 4-dimethylaminoazobenzene to a male rat." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006016 a rdfs:Class ;
  rdfs:label "C-4-I cell" ;
  rdfs:comment "Human cervical carcinoma cell line, established from an uterine cervix of a 41 years old caucasian female, containing the human papilloma virus." ;
  rdfs:subClassOf obo:BTO_0002212 .

obo:BTO_0003027 a rdfs:Class ;
  rdfs:label "NCI-H196 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0006130 a rdfs:Class ;
  rdfs:label "anterior spinothalamic tract" ;
  rdfs:comment "One of the two main parts of the spinathalamic tract. It transmits crude touch and firm pressure." .

obo:BTO_0001967 a rdfs:Class ;
  rdfs:label "cervical cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001966 .

obo:BTO_0001204 a rdfs:Class ;
  rdfs:label "salt gland" ;
  rdfs:comment "A specialized gland in marine animals that excretes the excess salt taken into the body." ;
  rdfs:subClassOf obo:BTO_0000431 .

obo:BTO_0002506 a rdfs:Class ;
  rdfs:label "enteric nervous system" ;
  rdfs:comment "Two ganglionated neural plexuses in the gut wall which form one of the three major divisions of the autonomic nervous system. The enteric nervous system innervates the gastrointestinal tract, the pancreas, and the gallbladder. It contains sensory neurons, interneurons, and motor neurons. Thus the circuitry can autonomously sense the tension and the chemical environment in the gut and regulate blood vessel tone, motility, secretions, and fluid transport. The system is itself governed by the central nervous system and receives both parasympathetic and sympathetic innervation." .

obo:BTO_0005721 a rdfs:Class ;
  rdfs:label "QGY-7703 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." .

obo:BTO_0003503 a rdfs:Class ;
  rdfs:label "OVKATE cell" ;
  rdfs:comment "Human ovarian carcinoma cell line from serous papillary adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0001715 a rdfs:Class ;
  rdfs:label "ectoplacental cone" ;
  rdfs:comment "The thickened trophoblast of the blastocyst in rodents that becomes the fetal portion of the placenta." ;
  rdfs:subClassOf obo:BTO_0001079 .

obo:BTO_0000891 a rdfs:Class ;
  rdfs:label "NTERA-2 cell" ;
  rdfs:comment "Human embryonal carcinoma (teratocarcinoma). NTERA-2 was cloned from cell line TERA-2 which was derived from a metastatic teratocarcinoma of a 22-year-old Caucasian male." ;
  rdfs:subClassOf obo:BTO_0000306 .

obo:BTO_0004218 a rdfs:Class ;
  rdfs:label "SK-N-FI cell" ;
  rdfs:comment "Neuroblastoma cell line; derived in 1979 from a bone marrow metastasis from a 11 year old Caucasian male with poorly differentiated embryonal neuroblastoma." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0005476 a rdfs:Class ;
  rdfs:label "SUM-185PE cell" ;
  rdfs:comment "Human breast cancer cell line from a primary tumor. Derived from pleural effusion obtained from a patient with ductal carcinoma of the breast." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0001095 a rdfs:Class ;
  rdfs:label "pod" ;
  rdfs:comment "A dry dehiscent pericarp or fruit that is composed of one or more carpels; especially: legume." ;
  rdfs:subClassOf obo:BTO_0001017 .

obo:BTO_0000911 a rdfs:Class ;
  rdfs:label "culture condition:N-acetyl-D-mannosamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001454 a rdfs:Class ;
  rdfs:label "thymoma cell" ;
  rdfs:comment "Thymoma is a disease in which cancer (malignant) cells are found in the tissues of the thymus. Thymoma is usually a slow-growing tumor that does not spread beyond the thymus." ;
  rdfs:subClassOf obo:BTO_0001460 .

obo:BTO_0004512 a rdfs:Class ;
  rdfs:label "pseudomucinous cystadenocarcinoma cell" ;
  rdfs:comment "Cystadenocarcinomas develop frequently in the ovaries, where pseudomucinous and serous types are recognised." ;
  rdfs:subClassOf obo:BTO_0004510 .

obo:BTO_0003713 a rdfs:Class ;
  rdfs:label "WM-793 cell" ;
  rdfs:comment "Primary human melanoma cell line; derived from a vertical growth phase primary melanoma in a patient who did not have a recurrence during 10-year clinical follow-up." .

obo:BTO_0004699 a rdfs:Class ;
  rdfs:label "posterior pharynx" .

obo:BTO_0004251 a rdfs:Class ;
  rdfs:label "Hepa-1c1c7-c12 cell" ;
  rdfs:comment "Aryl hydrocarbon receptor (AHR)-deficient Hepa-1c1c7 cell line." .

obo:BTO_0000401 a rdfs:Class ;
  rdfs:label "ependymal epithelium" ;
  rdfs:comment "Ependymal epithelium lining the ventricular cavities and canals of the CNS is simple, columnar or cuboidal." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0005685 a rdfs:Class ;
  rdfs:label "culture condition:4-hydroxybutyrate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000520 a rdfs:Class ;
  rdfs:label "gizzard" ;
  rdfs:comment "1: The muscular enlargement of the alimentary canal of birds that has usually thick muscular walls and a tough horny lining for grinding the food and when the crop is present follows it and the proventriculus. 2: A thickened part of the alimentary canal in some animals (as an insect or an earthworm) that is similar in function to the crop of a bird." ;
  rdfs:subClassOf obo:BTO_0002263 .

obo:BTO_0002663 a rdfs:Class ;
  rdfs:label "N2aSW cell" ;
  rdfs:comment "N2a cells stably expressing human APP Swedish mutation." .

obo:BTO_0004656 a rdfs:Class ;
  rdfs:label "follicular lymphoma cell" ;
  rdfs:subClassOf obo:BTO_0001690 .

obo:BTO_0000449 a rdfs:Class ;
  rdfs:label "fetus" ;
  rdfs:comment "An unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind; specifically: a developing human from usually three months after conception to birth." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0001371 a rdfs:Class ;
  rdfs:label "iris dilator muscle" ;
  rdfs:comment "A name given fibers extending radially from the sphincter pupillae to the ciliary margin; innervation, sympathetic; action, dilates iris." ;
  rdfs:subClassOf obo:BTO_0000655 .

obo:BTO_0005971 a rdfs:Class ;
  rdfs:label "culture condition:McCoys 5A medium-grown cell" ;
  rdfs:comment "McCoy's 5A medium was originally developed for the growth of Novikoff hepatoma cells. As modified by Iwakata and Grace, the increased levels of glucose, vitamins and peptone make McCoy's 5A a good general purpose medium for both primary, and established cell lines. Cells from biopsies (liver, intestine, skin, testes, bone marrow, spleen, lung and gingiva) have successfully been cultivated in this medium." ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004411 a rdfs:Class ;
  rdfs:label "culture condition:CD8- cell" ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0003243 a rdfs:Class ;
  rdfs:label "NCI-H1684 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line; tumor stage 3A; derived from metastatic site: lymph node, established from a 39 years old black male." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0001487 a rdfs:Class ;
  rdfs:label "adipose tissue" ;
  rdfs:comment "Connective tissue in which fat is stored and which has the cells distended by droplets of fat." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0003631 a rdfs:Class ;
  rdfs:label "Colon C26-G cell" ;
  rdfs:comment "C26-G was derived from the thymidine kinase deficient tumor Colon C26-G, which is a gemcitabine resistant variant from Colon 26." .

obo:BTO_0006242 a rdfs:Class ;
  rdfs:label "external ectoderm" .

obo:BTO_0003583 a rdfs:Class ;
  rdfs:label "neuroendocrine tumor cell line" .

obo:BTO_0002732 a rdfs:Class ;
  rdfs:label "HEK-293CymR cell" ;
  rdfs:comment "This cell line stably expresses the repressor protein CymR under the control of the CMV5 promoter. In addition, this cell line contains the E1A and E1B Adenovirus type 5 genes that complement these genes deleted in a recombinant Adenovirus." .

obo:BTO_0003208 a rdfs:Class ;
  rdfs:label "anaplastic thyroid cancer cell" ;
  rdfs:comment "Anaplastic thyroid carcinoma is an aggressive form of cancer of the thyroid gland." ;
  rdfs:subClassOf obo:BTO_0000196 .

obo:BTO_0000301 a rdfs:Class ;
  rdfs:label "crop" ;
  rdfs:comment "A pouched enlargement of the gullet of many birds that serves as a receptacle for food and for its preliminary maceration; also: an enlargement of the gullet of another animal (as an insect)." .

obo:BTO_0001345 a rdfs:Class ;
  rdfs:label "T-24 cell" ;
  rdfs:comment "Human urinary bladder carcinoma, established from the primary tumor of an 81-year-old Caucasian woman with urinary bladder carcinoma (transitional cell carcinoma, grade III) in 1970; described to produce a variety of cytokines (e.g. G-CSF, IL-6 and SCF) and to carry a p53 mutation." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0001801 a rdfs:Class ;
  rdfs:label "skeletal muscle cancer cell" .

obo:BTO_0004727 a rdfs:Class ;
  rdfs:label "larval brain" ;
  rdfs:subClassOf obo:BTO_0000142 .

obo:BTO_0003854 a rdfs:Class ;
  rdfs:label "BL-41 cell" ;
  rdfs:comment "Human Burkitt lymphoma cell line; established from the tumor tissue of an 8-year-old Caucasian boy with Burkitt lymphoma." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0000632 a rdfs:Class ;
  rdfs:label "insulinoma cell" ;
  rdfs:comment "A cell of a usually benign tumor of the insulin-secreting cells of the pancreas." ;
  rdfs:subClassOf obo:BTO_0000584 .

obo:BTO_0005580 a rdfs:Class ;
  rdfs:label "WDNET cell" ;
  rdfs:comment "Well-differentiated neuroendocrine tumor cell." ;
  rdfs:subClassOf obo:BTO_0001407 .

obo:BTO_0004988 a rdfs:Class ;
  rdfs:label "SNU-216 cell" ;
  rdfs:comment "Gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0002619 a rdfs:Class ;
  rdfs:label "posterior adductor muscle" ;
  rdfs:comment "Two dorsal muscles, called adductors, extend transversely between the valves, one at the anterior end and the other at the posterior end. The posterior adductor muscle is posterior to the kidney." ;
  rdfs:subClassOf obo:BTO_0000887 , obo:BTO_0001262 .

obo:BTO_0001683 a rdfs:Class ;
  rdfs:label "adenohypophysis tumor cell" .

obo:BTO_0003052 a rdfs:Class ;
  rdfs:label "MDA-686Ln cell" ;
  rdfs:comment "Metastatic oral cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002027 .

obo:BTO_0001840 a rdfs:Class ;
  rdfs:label "trophectoderm" ;
  rdfs:comment "Trophoblast: esp : the outer layer of the mammalian blastocyst after differentiation of the ectoderm, mesoderm, and endoderm when the outer layer is continuous with the ectoderm of the embryo." .

obo:BTO_0005948 a rdfs:Class ;
  rdfs:label "HO-1-u-1 cell" ;
  rdfs:comment "HO-1-u-1 is a human tumor cell line established from human sublingual squamous cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0005947 .

obo:BTO_0003964 a rdfs:Class ;
  rdfs:label "OECM-1 cell" ;
  rdfs:comment "Human oral squamous cell carcinoma cell line; excised from a Taiwanese patient and cultured into a cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0003806 a rdfs:Class ;
  rdfs:label "gamma-motoneuron" ;
  rdfs:comment "A smaller neuron whose cell body is found in the ventral horn of the spinal cord that innervates intrafusal fibers." ;
  rdfs:subClassOf obo:BTO_0000312 .

obo:BTO_0004802 a rdfs:Class ;
  rdfs:label "OCL-1 cell" ;
  rdfs:comment "Human ovarian carcinoma line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0000371 a rdfs:Class ;
  rdfs:label "egg yolk" ;
  rdfs:comment "The yellow spheroidal mass of stored food that forms the inner portion of the egg of a bird or reptile and is surrounded by the white." .

obo:BTO_0002226 a rdfs:Class ;
  rdfs:label "abalone digestive gland cell line" ;
  rdfs:subClassOf obo:BTO_0002225 .

obo:BTO_0004735 a rdfs:Class ;
  rdfs:label "brainstem glioma cell" ;
  rdfs:comment "This primary brain tumour occurs in the pons or the medulla. They account for approximately 15% of brain tumours in children. Symptoms include double vision, facial weakness, vomiting and difficulty walking. Surgery is difficult due to location so radiation therapy and chemotherapy are used. Overall survival is 20 to 30%." ;
  rdfs:subClassOf obo:BTO_0001573 .

obo:BTO_0005490 a rdfs:Class ;
  rdfs:label "MM-1 cell" ;
  rdfs:comment "Parent cell line, established from peripheral blood of a multiple myeloma patient who had become resistant to steroid-based therapy." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0001729 a rdfs:Class ;
  rdfs:label "forelimb" ;
  rdfs:comment "A limb as an arm, wing, fin, or leg that is situated anteriorly." ;
  rdfs:subClassOf obo:BTO_0001492 .

obo:BTO_0006267 a rdfs:Class ;
  rdfs:label "circumventricular organ" ;
  rdfs:comment "Four small areas in or near the base of the brain that have fenestrated capillaries and are outside the blood-brain barrier. They are the neurohypophysis, the area postrema, the organum vasculosum of the lamina terminalis, and the subfornical organ. The neurohypophysis is a neurohemal organ. The other three are chemoreceptors: the area postrema triggers vomiting in response to chemical changes in plasma, the organum vasculosum of the lamina terminalis senses osmolality and alters vasopressin secretion, and the subfornical organ initiates drinking in response to angiotensin II." .

obo:BTO_0005899 a rdfs:Class ;
  rdfs:label "UACC-91 cell" ;
  rdfs:comment "Metastatic patient-derived human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004796 a rdfs:Class ;
  rdfs:label "253J cell" ;
  rdfs:comment "Human bladder transitional cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0005530 a rdfs:Class ;
  rdfs:label "plant glandular hair" ;
  rdfs:comment "Any of the various types of hairs may be glandular." ;
  rdfs:subClassOf obo:BTO_0005529 .

obo:BTO_0005964 a rdfs:Class ;
  rdfs:label "HIB-1B cell" ;
  rdfs:comment "Cell line, derived from a brown fat tumor of a transgenic mouse, capable of expressing the brown fat-specific mitochondrial uncoupling protein." ;
  rdfs:subClassOf obo:BTO_0003452 .

obo:BTO_0003131 a rdfs:Class ;
  rdfs:label "CaR-1 cell" ;
  rdfs:comment "Human rectal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001532 .

obo:BTO_0000490 a rdfs:Class ;
  rdfs:label "prostate gland ventral lobe" .

obo:BTO_0006278 a rdfs:Class ;
  rdfs:label "inner mantle" ;
  rdfs:comment "The inner mantle of the giant clam Tridacna squamosa, adjacent to the extrapallial fluid, as demarcated by the pallial line of the shell-valve, is thin and whitish, and is involved in shell formation." .

obo:BTO_0004240 a rdfs:Class ;
  rdfs:label "germarium" ;
  rdfs:comment "Each ovariole consists of a germarium and a series of ovarial follicles. The germarium is a mass of undifferentiated cells that form oocytes, nurse cells, and follicular cells." .

obo:BTO_0004127 a rdfs:Class ;
  rdfs:label "Huma-7 cell" ;
  rdfs:comment "Normal human breast cell line." ;
  rdfs:subClassOf obo:BTO_0000816 .

obo:BTO_0003727 a rdfs:Class ;
  rdfs:label "U-1810 cell" ;
  rdfs:comment "Non-small-cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0005359 a rdfs:Class ;
  rdfs:label "Marisco cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0002349 a rdfs:Class ;
  rdfs:label "hallux" ;
  rdfs:comment "The first digit of the foot." ;
  rdfs:subClassOf obo:BTO_0002348 .

obo:BTO_0002297 a rdfs:Class ;
  rdfs:label "renal glomerular capsule" ;
  rdfs:comment "The double-walled globular dilatation that forms the beginning of a uriniferous tubule of the kidney and surrounds the glomerulus; it consists of an inner, or visceral, layer (capsular epithelium) and an outer, or parietal, layer (glomerular epithelium)." .

obo:BTO_0003673 a rdfs:Class ;
  rdfs:label "nephrotome" ;
  rdfs:comment "The modified part of a somite of a vertebrate embryo that develops into a segmental excretory tubule of the primitive kidney." .

obo:BTO_0003843 a rdfs:Class ;
  rdfs:label "FU-01 cell" ;
  rdfs:comment "Vitis vinifera cv. Gamay Freaux var. Teinturier suspension cell line." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0000142 a rdfs:Class ;
  rdfs:label "brain" ;
  rdfs:comment "1: The portion of the vertebrate central nervous system that constitutes the organ of thought and neural coordination, includes all the higher nervous centers receiving stimuli from the sense organs and interpreting and correlating them to formulate the motor impulses, is made up of neurons and supporting and nutritive structures, is enclosed within the skull, and is continuous with the spinal cord through the foramen magnum. Also named encephalon. 2: A nervous center in invertebrates comparable in position and function to the vertebrate brain." .

obo:BTO_0004074 a rdfs:Class ;
  rdfs:label "cystocyte" ;
  rdfs:comment "The insect equivalent of a blood platelet. At a site of injury, these cells will break down into threads around which plasma can gel, stopping the flow of haemolymph from the site." .

obo:BTO_0004851 a rdfs:Class ;
  rdfs:label "mammary ductal carcinoma cell" ;
  rdfs:comment "The most common type of breast cancer in women. It comes in two forms: invasive ductal carcinoma (IDC), an infiltrating, malignant and abnormal proliferation of neoplastic cells in the breast tissue, or ductal carcinoma in situ (DCIS), a noninvasive, possibly malignant, neoplasm that is still confined to the milk ducts (lactiferous ducts), where breast cancer most often originates." .

obo:BTO_0002022 a rdfs:Class ;
  rdfs:label "bronchial epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0000353 , obo:BTO_0002637 .

obo:BTO_0001081 a rdfs:Class ;
  rdfs:label "MOLT-3 cell" ;
  rdfs:comment "Human T cell leukemia cell line; established from the peripheral blood of a 19-year-old man with acute lymphoblastic leukaemia, ALL, in relapse in 1971; sister cell line of MOLT-4." ;
  rdfs:subClassOf obo:BTO_0002144 , obo:BTO_0002504 .

obo:BTO_0004178 a rdfs:Class ;
  rdfs:label "leukemic stem cell" ;
  rdfs:comment "A normal stem or progenitor cell undergoes a mutation, giving rise to an entity that is functionally defined as a leukemic stem cell. The mutated stem cells differentiate into the hematopoietic lineage carrying the defect/s or can remain as immature progenitor cells, the blast cells." ;
  rdfs:subClassOf obo:BTO_0004254 .

obo:BTO_0002726 a rdfs:Class ;
  rdfs:label "CRO-AP/5 cell" ;
  rdfs:comment "PEL cell line carrying the Epstein-Barr virus (EBV) infection." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0000735 a rdfs:Class ;
  rdfs:label "sporophyte" ;
  rdfs:comment "The individual or generation of a plant exhibiting alternation of generations that bears asexual spores." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0002410 a rdfs:Class ;
  rdfs:label "giant cell carcinoma cell" ;
  rdfs:comment "A poorly differentiated, highly malignant, epithelial neoplasm containing numerous very large, multinucleated tumor cells, such as occurs in the lungs." ;
  rdfs:subClassOf obo:BTO_0000176 .

obo:BTO_0003846 a rdfs:Class ;
  rdfs:label "ACHN cell" ;
  rdfs:comment "Human renal cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0003642 a rdfs:Class ;
  rdfs:label "Hca-F cell" ;
  rdfs:comment "The Hca-F and Hca-P cell lines are subclones derived from the same parent cells of mouse hepatocarcinoma ascitic cells. In tumor-bearing mice, Hca-F cells have an approximate 70% lymph node metastasis rate and Hca-P cells have an approximate 30% lymph node metastasis." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0005880 a rdfs:Class ;
  rdfs:label "Res-186 cell" ;
  rdfs:comment "Human paediatric glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0001226 a rdfs:Class ;
  rdfs:label "seed" ;
  rdfs:comment "A matured ovule containing an embryo and food supply and covered by a seed coat." .

obo:BTO_0001566 a rdfs:Class ;
  rdfs:label "HT-29 G cell" ;
  rdfs:comment "A colon carcinoma cell line. A subpopulation derived from the HT-29 cell line containing cells committed to differentiation into enterocyte-like cells (HT-29 G)." .

obo:BTO_0003312 a rdfs:Class ;
  rdfs:label "KM-12C cell" ;
  rdfs:comment "Colorectal carcinoma cell line derived from a primary tumor." .

obo:BTO_0004421 a rdfs:Class ;
  rdfs:label "salivary gland epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0003767 a rdfs:Class ;
  rdfs:label "A-204 cell" ;
  rdfs:comment "Human rhabdomyosarcoma cell line; established from a 1 year old female." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0001215 a rdfs:Class ;
  rdfs:label "sartorius" ;
  rdfs:comment "A muscle that crosses the front of the thigh obliquely, assists in rotating the leg to the cross-legged position in which the knees are spread wide apart, and in humans is the longest muscle." ;
  rdfs:subClassOf obo:BTO_0001367 .

obo:BTO_0000982 a rdfs:Class ;
  rdfs:label "culture condition:p-cresol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004020 a rdfs:Class ;
  rdfs:label "HLaC-78 cell" ;
  rdfs:comment "Human larynx squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004019 .

obo:BTO_0000863 a rdfs:Class ;
  rdfs:label "midgut" ;
  rdfs:comment "The middle part of an alimentary canal." .

obo:BTO_0004519 a rdfs:Class ;
  rdfs:label "myometrial cell" .

obo:BTO_0003886 a rdfs:Class ;
  rdfs:label "Hs-578Bst cell" ;
  rdfs:comment "Human breast epithelial cell line from normal breast tissue of an 74 years-old caucasian female peripheral to an infiltrating ductal carcinoma which was the source for Hs 578T cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0003351 a rdfs:Class ;
  rdfs:label "BN17 cell" ;
  rdfs:comment "BN17 cells are NG108 cells transfected using plasmid pJM16, carrying a copy of the neomycin resistance gene and the cDNA encoding human {beta}2-AR, to express the human {beta}2-AR at about 300 fmol/mg protein." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0006188 a rdfs:Class ;
  rdfs:label "arterial blood" ;
  rdfs:comment "Blood found in arteries. Except for the pulmonary artery the arterial blood is rich in oxygen." ;
  rdfs:subClassOf obo:BTO_0000089 .

obo:BTO_0004487 a rdfs:Class ;
  rdfs:label "OV-MZ-6 cell" ;
  rdfs:comment "Human ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0002261 a rdfs:Class ;
  rdfs:label "fungus form" ;
  rdfs:subClassOf obo:BTO_0001494 .

obo:BTO_0005631 a rdfs:Class ;
  rdfs:label "G3/F11 cell" ;
  rdfs:comment "Mouse hybridoma cell line containing the human aspartyl (asparaginyl) beta-hydroxylase." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0006500 a rdfs:Class ;
  rdfs:label "GC-2 cell" ;
  rdfs:comment "Mouse spermatocyte cell line, established by stable cotransfection of freshly isolated spermatocytes with the SV40 large T antigen gene and a temperature sensitive mutant of the p53 tumor suppressor gene." ;
  rdfs:subClassOf obo:BTO_0006499 .

obo:BTO_0002743 a rdfs:Class ;
  rdfs:label "schistosomulum" ;
  rdfs:comment "The immature form of a parasitic schistosome after it has entered the blood vessels of its host." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0002070 a rdfs:Class ;
  rdfs:label "KS-IMM cell" ;
  rdfs:comment "The tumorigenic KS IMM cell line derives from Kaposi's sarcoma (KS), a highly angiogenic tumor." ;
  rdfs:subClassOf obo:BTO_0001973 .

obo:BTO_0004341 a rdfs:Class ;
  rdfs:label "granular insular cortex" ;
  rdfs:comment "The insular cortex has regions of variable cell structure or cytoarchitecture, changing from granular in the posterior portion to agranular in the anterior portion." .

obo:BTO_0002954 a rdfs:Class ;
  rdfs:label "Mel505 cell" ;
  rdfs:comment "Metastatic human melanoma, obtained from patients with no history of chemotherapy or immunotherapy by surgical removal." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005671 a rdfs:Class ;
  rdfs:label "KGN cell" ;
  rdfs:comment "A steroidogenic human ovarian granulosa-like tumor cell line, from a patient with invasive ovarian granulosa cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0002285 .

obo:BTO_0004659 a rdfs:Class ;
  rdfs:label "exoskeleton" ;
  rdfs:comment "Exoskeleton or shell, including those of mollusks, turtles, insects and crustaceans." ;
  rdfs:subClassOf obo:BTO_0000634 .

obo:BTO_0006231 a rdfs:Class ;
  rdfs:label "culture condition:(-)-camphor-grown cell" ;
  rdfs:subClassOf obo:BTO_0006230 .

obo:BTO_0005183 a rdfs:Class ;
  rdfs:label "TOV-21G cell" ;
  rdfs:comment "This cell line was initiated in October of 1991 from a patient of French-Canadian descent with no family history of ovarian cancer." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004959 a rdfs:Class ;
  rdfs:label "LNCAP-C4-2B cell" ;
  rdfs:comment "LNCaP-derivative C4-2B prostate cancer cell line." .

obo:BTO_0002038 a rdfs:Class ;
  rdfs:label "osteocyte" ;
  rdfs:comment "A cell that is characteristic of adult bone and is isolated in a lacuna of the bone substance." ;
  rdfs:subClassOf obo:BTO_0002050 .

obo:BTO_0002737 a rdfs:Class ;
  rdfs:label "SP-6.5 cell" ;
  rdfs:comment "Human choroidal melanoma, the most frequent primary ocular neoplasm in humans." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000622 a rdfs:Class ;
  rdfs:label "culture condition:cyclopentanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006546 a rdfs:Class ;
  rdfs:label "IN-2045 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004832 a rdfs:Class ;
  rdfs:label "L56Br-C1 cell" ;
  rdfs:comment "A human tumor xenograft (L56Br-X1) was established from a breast cancer axillary lymph node metastasis of a 53-year-old woman with a BRCA1 germ-line nonsense mutation (1806C>T; Q563X), and a cell line (L56Br-C1) was subsequently derived from the xenograft." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0004339 a rdfs:Class ;
  rdfs:label "ScGT1 cell" ;
  rdfs:comment "Derived from the mouse hypothalamic cell line GT1, infected with mouse scrapie prions." .

obo:BTO_0005158 a rdfs:Class ;
  rdfs:label "juxtaglomerular cell" ;
  rdfs:comment "One of the three cellular components of the juxtaglomerular apparatus. Juxtaglomerular cells are not granular cells but are granulated as they release renin." .

obo:BTO_0002221 a rdfs:Class ;
  rdfs:label "HLE-B3 cell" ;
  rdfs:comment "Human lens epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0001874 .

obo:BTO_0002866 a rdfs:Class ;
  rdfs:label "TE-2 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0001274 a rdfs:Class ;
  rdfs:label "spermatid" ;
  rdfs:comment "One of the haploid cells that are formed by division of the secondary spermatocytes and that differentiate into spermatozoa." .

obo:BTO_0000191 a rdfs:Class ;
  rdfs:label "medullary carcinoma cell" ;
  rdfs:comment "A cell of a carcinoma composed mainly of epithelial elements with little or no stroma. Medullary carcinomas of the breast constitute 5%-7% of all mammary carcinomas; medullary carcinomas of the thyroid comprise 3%-10% of all thyroid malignancies." ;
  rdfs:subClassOf obo:BTO_0000176 .

obo:BTO_0001595 a rdfs:Class ;
  rdfs:label "WM-266-4 cell" ;
  rdfs:comment "Homo sapiens (human) skin melanoma cell line. The WM-266-4 cell line was derived from a metastatic site of a malignant melanoma from a 58 year old female organism." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004356 a rdfs:Class ;
  rdfs:label "Brodmann area 35" ;
  rdfs:comment "This area is known as perirhinal area 35. It is a subdivision of the cytoarchitecturally defined hippocampal region of the cerebral cortex. In the human it is located along the rhinal sulcus." .

obo:BTO_0000070 a rdfs:Class ;
  rdfs:label "fungal cell line" .

obo:BTO_0005039 a rdfs:Class ;
  rdfs:label "HN-30 cell" ;
  rdfs:comment "Head and neck squamous carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0001334 a rdfs:Class ;
  rdfs:label "papilloma cell" ;
  rdfs:comment "A cell of small benign epithelial tumor, such as a wart, consisting of an overgrowth of cells on a core of smooth connective tissue." ;
  rdfs:subClassOf obo:BTO_0000415 .

obo:BTO_0000688 a rdfs:Class ;
  rdfs:label "culture condition:acetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001891 a rdfs:Class ;
  rdfs:label "RKO-E6 cell" ;
  rdfs:comment "The RKO-E6 cell line was generated from the colon carcinoma RKO cell line by transfection with pCMV-E6 using Lipofectin." .

obo:BTO_0005751 a rdfs:Class ;
  rdfs:label "C8161.9 cell" ;
  rdfs:comment "Human highly metastatic melanoma cell line." .

obo:BTO_0005524 a rdfs:Class ;
  rdfs:label "plant lip" ;
  rdfs:comment "One of the two divisions of a bilabiate corolla or calyx, as in the snapdragon, or the modified upper petal of an orchid flower." .

obo:BTO_0005079 a rdfs:Class ;
  rdfs:label "KLE cell" ;
  rdfs:comment "A cell line derived from a poorly differentiated endometrial carcinoma that is aneuploid with chromosome numbers ranging from 51 to 66 and 6-8 marker chromosomes demonstrated by G banding." ;
  rdfs:subClassOf obo:BTO_0001555 .

obo:BTO_0001209 a rdfs:Class ;
  rdfs:label "umbilical cord cell line" ;
  rdfs:subClassOf obo:BTO_0001975 .

obo:BTO_0005680 a rdfs:Class ;
  rdfs:label "large luteal cell" ;
  rdfs:comment "Large luteal cells are derived from follicular granulosa cells." ;
  rdfs:subClassOf obo:BTO_0003939 .

obo:BTO_0001505 a rdfs:Class ;
  rdfs:label "loin" ;
  rdfs:comment "The part of a human being or quadruped on each side of the spinal column between the hipbone and the false ribs." .

obo:BTO_0002384 a rdfs:Class ;
  rdfs:label "MKN-1 cell" ;
  rdfs:comment "Human gastric adenosquamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0003092 a rdfs:Class ;
  rdfs:label "urinary system" ;
  rdfs:comment "The organs and passageways concerned with the production and excretion of urine, including the kidneys, ureters, urinary bladder, and urethra." .

obo:BTO_0004049 a rdfs:Class ;
  rdfs:label "adult T-cell lymphoma cell line" ;
  rdfs:subClassOf obo:BTO_0000737 , obo:BTO_0003212 .

obo:BTO_0004395 a rdfs:Class ;
  rdfs:label "microvessel" ;
  rdfs:comment "A blood vessel as a capillary, arteriole, or venule of the microcirculatory system." ;
  rdfs:subClassOf obo:BTO_0001102 .

obo:BTO_0000565 a rdfs:Class ;
  rdfs:label "HEL cell" ;
  rdfs:comment "Human erythroleukemia, established from the peripheral blood of a 30-year-old man with erythroleukemia (AML M6) in relapse (after treatment for Hodgkin's disease) in 1980; cells were described to be capable of spontaneous and induced globin synthesis." ;
  rdfs:subClassOf obo:BTO_0000846 .

obo:BTO_0003362 a rdfs:Class ;
  rdfs:label "anterior visceral ectoderm" ;
  rdfs:comment "The anterior visceral ectoderm is an extra-embryonic tissue in the early mouse embryo that is involved in inducing anterior regions of the embryo." ;
  rdfs:subClassOf obo:BTO_0003487 .

obo:BTO_0003493 a rdfs:Class ;
  rdfs:label "SUIT-2 cell" ;
  rdfs:comment "Human pancreatic ductal adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003883 .

obo:BTO_0000810 a rdfs:Class ;
  rdfs:label "malpighian tubule" ;
  rdfs:comment "Any of a group of long blind vessels opening into the posterior part of the alimentary canal in most insects and some other arthropods and functioning primarily as excretory organs." ;
  rdfs:subClassOf obo:BTO_0000431 , obo:BTO_0001491 .

obo:BTO_0005147 a rdfs:Class ;
  rdfs:label "HTh-74 cell" ;
  rdfs:comment "Human anaplastic thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0003436 a rdfs:Class ;
  rdfs:label "synovial cell line" .

obo:BTO_0000971 a rdfs:Class ;
  rdfs:label "SAOS-2 cell" ;
  rdfs:comment "Human osteogenic sarcoma, established from the primary osteogenic sarcoma of an 11-year-old Caucasian woman in 1973." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0004407 a rdfs:Class ;
  rdfs:label "CB33 cell" ;
  rdfs:comment "Epstein-Barr virus immortalized B-lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0002027 a rdfs:Class ;
  rdfs:label "oral cancer cell line" .

obo:BTO_0006343 a rdfs:Class ;
  rdfs:label "CL1-5-F4 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line, highly metastatic." .

obo:BTO_0004750 a rdfs:Class ;
  rdfs:label "129S6 cell" ;
  rdfs:comment "The PluriStem 129S6 Murine ES cell line is derived from the widely used 129/S6/SvEv strain of mice." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0005482 a rdfs:Class ;
  rdfs:label "38E6E7HFK cell" ;
  rdfs:comment "Human foreskin keratinocyte cell line expressing the E6 and E7 oncoproteins of human papillomavirus type 38." ;
  rdfs:subClassOf obo:BTO_0005481 .

obo:BTO_0005337 a rdfs:Class ;
  rdfs:label "Ma-Mel-04 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006353 a rdfs:Class ;
  rdfs:label "GM-12878 cell" ;
  rdfs:comment "Human B-lymphocyte cell line from blood of a peripheral vein." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0005331 a rdfs:Class ;
  rdfs:label "culture condition:sulfur-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001431 a rdfs:Class ;
  rdfs:label "vascular smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0002135 a rdfs:Class ;
  rdfs:label "INS-1 cell" ;
  rdfs:comment "Pancreatic beta -cell line of rat origin." ;
  rdfs:subClassOf obo:BTO_0000716 .

obo:BTO_0000546 a rdfs:Class ;
  rdfs:label "gut mucosa" ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0002625 a rdfs:Class ;
  rdfs:label "mesenchymal cell" ;
  rdfs:comment "An undifferentiated cell found in mesenchyme and capable of differentiating into various specialized connective tissues." .

obo:BTO_0003929 a rdfs:Class ;
  rdfs:label "MM1-R cell" ;
  rdfs:comment "Multiple myeloma cell line." .

obo:BTO_0004847 a rdfs:Class ;
  rdfs:label "ONCO-DG1 cell" ;
  rdfs:comment "Oxyphilic papillary thyroid carcinoma cell line." .

obo:BTO_0003344 a rdfs:Class ;
  rdfs:label "CL1-4 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." .

obo:BTO_0001182 a rdfs:Class ;
  rdfs:label "primary root" ;
  rdfs:comment "The main root of a plant is called the primary root; others are called secondary roots." ;
  rdfs:subClassOf obo:BTO_0001188 .

obo:BTO_0000901 a rdfs:Class ;
  rdfs:label "myocardium" ;
  rdfs:comment "The middle and thickest layer of the heart wall, composed of cardiac muscle." ;
  rdfs:subClassOf obo:BTO_0000199 .

obo:BTO_0002939 a rdfs:Class ;
  rdfs:label "serous adenocarcinoma cell" ;
  rdfs:comment "Adenocarcinoma from a serous gland producing and containing serous proteinaceous secretions." .

obo:BTO_0006122 a rdfs:Class ;
  rdfs:label "TU-KATO-III cell" ;
  rdfs:comment "Tumorigenic TU-kato-III cells were derived from the gastric cancer cell line KATO-III." .

obo:BTO_0000852 a rdfs:Class ;
  rdfs:label "meristem" ;
  rdfs:comment "A formative plant tissue usually made up of small cells capable of dividing indefinitely and giving rise to similar cells or to cells that differentiate to produce the definitive tissues and organs." .

obo:BTO_0003695 a rdfs:Class ;
  rdfs:label "CAD cell" ;
  rdfs:comment "A CNS catecholaminergic cell line." .

obo:BTO_0001645 a rdfs:Class ;
  rdfs:label "wing bud" ;
  rdfs:comment "A swelling on the trunk of an avian embryo that gives rise to a wing." ;
  rdfs:subClassOf obo:BTO_0001639 .

obo:BTO_0001871 a rdfs:Class ;
  rdfs:label "synganglion" ;
  rdfs:comment "The synganglion constitutes the entire central nervous of the tick. There is no separate brain or ventral nerve chord. The synganglion is located in the midventral region of the body immediately posterior to the genital pore in adults or the location where the genital pore will form in immature specimens. The synganglion is a small white organ approximately 0.5 mm wide by 0.4 - 0.5 mm long. The esophagus penetrates through the synganglion, entering more or less from the anterior ventral side and emerging near the posterior dorsal side of the organ." ;
  rdfs:subClassOf obo:BTO_0000227 , obo:BTO_0000497 .

obo:BTO_0004048 a rdfs:Class ;
  rdfs:label "aril" ;
  rdfs:comment "An exterior covering or appendage of some seeds (as of the yew) that develops after fertilization as an outgrowth from the ovule stalk." .

obo:BTO_0002308 a rdfs:Class ;
  rdfs:label "myoepithelium" ;
  rdfs:comment "A specialized type of epithelium that has contractile qualities." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0005783 a rdfs:Class ;
  rdfs:label "tenocyte" ;
  rdfs:comment "An elongated fibroblast cell found in tendons." ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0001046 a rdfs:Class ;
  rdfs:label "pharate pupa" ;
  rdfs:comment "Pupa of an insect, having its new cuticle formed beneath its present cuticle, and thus ready for its next moult." ;
  rdfs:subClassOf obo:BTO_0001143 .

obo:BTO_0004229 a rdfs:Class ;
  rdfs:label "testicular cell line" .

obo:BTO_0002716 a rdfs:Class ;
  rdfs:label "MDA-1186 cell" ;
  rdfs:comment "Human neck squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0004014 a rdfs:Class ;
  rdfs:label "embryonic cerebral cortex" .

obo:BTO_0001913 a rdfs:Class ;
  rdfs:label "colonic adenocarcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002196 a rdfs:Class ;
  rdfs:label "A10 cell" ;
  rdfs:comment "Vascular smooth muscle cell line derived from rat thoracic aorta." ;
  rdfs:subClassOf obo:BTO_0001200 .

obo:BTO_0005733 a rdfs:Class ;
  rdfs:label "culture condition:methyl ferulate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003793 a rdfs:Class ;
  rdfs:label "pituicyte" ;
  rdfs:comment "One of the pigmented more or less fusiform cells of the stalk and posterior lobe of the pituitary gland that are usually considered to be derived from glial cells." .

obo:BTO_0003059 a rdfs:Class ;
  rdfs:label "oviduct epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0001120 .

obo:BTO_0004328 a rdfs:Class ;
  rdfs:label "DAOY cell" ;
  rdfs:comment "Human medulloblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001359 .

obo:BTO_0006328 a rdfs:Class ;
  rdfs:label "HEK-293T/17 cell" ;
  rdfs:comment "The 293T/17 cell line is a derivative of the 293T cell line. 293T is a highly transfectable derivative of the 293 cell line into which the temperature sensitive gene for SV40 T-antigen was inserted." .

obo:BTO_0004966 a rdfs:Class ;
  rdfs:label "Rat-1/BB16 cell" ;
  rdfs:comment "Rat-1 cells expressing a stable v-Src protein." .

obo:BTO_0001700 a rdfs:Class ;
  rdfs:label "cancellous bone" ;
  rdfs:comment "Bone substance made up of thin intersecting lamellae, usually found internal to compact bone." .

obo:BTO_0000030 a rdfs:Class ;
  rdfs:label "adductor" ;
  rdfs:comment "Any of three powerful triangular muscles that contribute to the adduction of the human thigh." ;
  rdfs:subClassOf obo:BTO_0001367 .

obo:BTO_0004426 a rdfs:Class ;
  rdfs:label "NCI-H1915 cell" ;
  rdfs:comment "Human non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004033 a rdfs:Class ;
  rdfs:label "catecholaminergic neuron" ;
  rdfs:comment "Neuron activated by or secreting catecholamines." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0006177 a rdfs:Class ;
  rdfs:label "superior temporal gyrus" ;
  rdfs:comment "The superior of the three longitudinal gyri that cover the lateral surface of the temporal lobe." ;
  rdfs:subClassOf obo:BTO_0006178 .

obo:BTO_0000727 a rdfs:Class ;
  rdfs:label "multiple myeloma cell line" ;
  rdfs:subClassOf obo:BTO_0000899 .

obo:BTO_0004818 a rdfs:Class ;
  rdfs:label "FOM71 cell" ;
  rdfs:comment "Human primary melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0000224 a rdfs:Class ;
  rdfs:label "liver cell line" .

obo:BTO_0001248 a rdfs:Class ;
  rdfs:label "T-47D cell" ;
  rdfs:comment "Human ductal breast carcinoma ductal cell line. Morphology: epithelial-likeSpecies: human female 54 years old; Tissue: breast; Tumor: carcinoma, ductal; Derived from: T47, originally derived from pleural effusion." .

obo:BTO_0000608 a rdfs:Class ;
  rdfs:label "hepatoma cell" ;
  rdfs:comment "Primary carcinoma of the liver cells. It ranges from a well-differentiated tumour difficult to distinguish from normal hepatocytes to a poorly differentiated neoplasm. The cells may be uniform or markedly pleomorphic or may form giant cells. Several classification schemes have been suggested. Hepatocellular carcinoma is very rare in the united states and western europe, but it is one of the most common cancers in eastern asia and sub-saharan africa. The cases are preponderantly male and, racially, whites have the lowest rates." ;
  rdfs:subClassOf obo:BTO_0000594 , obo:BTO_0000604 .

obo:BTO_0000942 a rdfs:Class ;
  rdfs:label "NG-108-15 cell" ;
  rdfs:comment "Neuroblastoma glioma hybrid cell line." ;
  rdfs:subClassOf obo:BTO_0000711 , obo:BTO_0000932 .

obo:BTO_0006531 a rdfs:Class ;
  rdfs:label "LCL-721 cell" ;
  rdfs:comment "An Epstein-Barr virus (EBV) transformed lymphoblastoid cell line with Human Leukocyte Antigen (HLA)-typing data available." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0004096 a rdfs:Class ;
  rdfs:label "coronary artery endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001854 .

obo:BTO_0001389 a rdfs:Class ;
  rdfs:label "tracheal epithelium" ;
  rdfs:subClassOf obo:BTO_0000419 .

obo:BTO_0005219 a rdfs:Class ;
  rdfs:label "osteophyte" ;
  rdfs:comment "A small, abnormal bony outgrowth." .

obo:BTO_0005652 a rdfs:Class ;
  rdfs:label "culture condition:tetradecyltrimethylammonium bromide-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006332 a rdfs:Class ;
  rdfs:label "SJ-GBM-2 cell" ;
  rdfs:comment "Human pediatric GBM-derived cell line." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0001612 a rdfs:Class ;
  rdfs:label "colorectal adenoma cell" ;
  rdfs:subClassOf obo:BTO_0000178 , obo:BTO_0001615 .

obo:BTO_0003880 a rdfs:Class ;
  rdfs:label "G9T/VGH cell" ;
  rdfs:comment "Human malignant astrocytoma cell line." ;
  rdfs:subClassOf obo:BTO_0000101 .

obo:BTO_0004710 a rdfs:Class ;
  rdfs:label "tunica interna bulbi" ;
  rdfs:comment "The third and deepest of the three layers of the eyeball, composed of the retina, intraocular part of the optic nerve, and the retinal blood vessels." ;
  rdfs:subClassOf obo:BTO_0001175 .

obo:BTO_0002016 a rdfs:Class ;
  rdfs:label "C-8161 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006483 a rdfs:Class ;
  rdfs:label "GL-261 cell" ;
  rdfs:comment "Murine glioblastoma cell line; established as in vitro growing cell culture in the mid 1990s from the Gl261 tumor which was induced in 1939 by intracranial injection of 3-methylcholanthrene into C57BL/6 mice and subsequently maintained by serial transplantation in syngeneic mouse strain." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005068 a rdfs:Class ;
  rdfs:label "SK-CO15 cell" ;
  rdfs:comment "Human intestinal epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0000003 .

obo:BTO_0003824 a rdfs:Class ;
  rdfs:label "culture condition:n-butanol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003265 a rdfs:Class ;
  rdfs:label "cardiac muscle cell line" .

obo:BTO_0005657 a rdfs:Class ;
  rdfs:label "adrenal cortex steroidogenic cell" ;
  rdfs:comment "A steroidogenic cell is involved in the formation of steroids, as by the adrenal cortex, testes, and ovaries." .

obo:BTO_0004514 a rdfs:Class ;
  rdfs:label "Ser-W3 cell" ;
  rdfs:comment "Rat Sertoli cell line." ;
  rdfs:subClassOf obo:BTO_0004513 .

obo:BTO_0001296 a rdfs:Class ;
  rdfs:label "sprout" ;
  rdfs:comment "A young shoot (as from a seed or root)." .

obo:BTO_0006256 a rdfs:Class ;
  rdfs:label "solid cancer cell" ;
  rdfs:comment "An abnormal mass of tissue that usually does not contain cysts or liquid areas. Solid tumors may be benign, or malignant. Different types of solid tumors are named for the type of cells that form them. Examples of solid tumors are sarcomas, carcinomas, and lymphomas. Leukemias  generally do not form solid tumors." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0003689 a rdfs:Class ;
  rdfs:label "mucous cell" ;
  rdfs:comment "A cell secreting mucus, e.g. a goblet cell." .

obo:BTO_0002759 a rdfs:Class ;
  rdfs:label "PC6-7 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0003953 a rdfs:Class ;
  rdfs:label "mesendoderm" ;
  rdfs:comment "An embryonic blastomere or cell layer not yet differentiated into mesoderm and endoderm but destined to give rise to both." ;
  rdfs:subClassOf obo:BTO_0000556 , obo:BTO_0001473 .

obo:BTO_0003113 a rdfs:Class ;
  rdfs:label "ROVA cell" ;
  rdfs:comment "HPV18 positive human uterine cervix carcinoma cell line; established from stage IVA squamous cell cervical carcinoma explants from Mexican female at the National University of Mexico." ;
  rdfs:subClassOf obo:BTO_0001967 .

obo:BTO_0000947 a rdfs:Class ;
  rdfs:label "neuronal cell line" .

obo:BTO_0006305 a rdfs:Class ;
  rdfs:label "rhizodermis" ;
  rdfs:comment "The outermost primary cell layer of the root." ;
  rdfs:subClassOf obo:BTO_0000116 .

obo:BTO_0005595 a rdfs:Class ;
  rdfs:label "microplantlet suspension culture" ;
  rdfs:comment "A phototrophic microplantlet culture, consisting of regenerated shoot tissues in liquid suspension, established from red algae and cultivated in a stirred tank photobioreactor." ;
  rdfs:subClassOf obo:BTO_0003916 .

obo:BTO_0006253 a rdfs:Class ;
  rdfs:label "UWB1.289 cell" ;
  rdfs:comment "Human ovarian carcinoma cell line; established from a 56-years-old female." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0005136 a rdfs:Class ;
  rdfs:label "ES-E14 cell" ;
  rdfs:comment "Mouse embryonic stem cell line." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0003907 a rdfs:Class ;
  rdfs:label "uroepithelial cell line" .

obo:BTO_0001602 a rdfs:Class ;
  rdfs:label "exocuticle" ;
  rdfs:comment "The outer layer of the procuticle of certain crustaceans and arthropods, which contains cuticulin, chitin, and phenolic substances that are oxidized to produce the dark pigment of the cuticle; The hard and usually darkened layer of the cuticle lying between the endocuticle and epicuticle." .

obo:BTO_0005295 a rdfs:Class ;
  rdfs:label "HCC-38 cell" ;
  rdfs:comment "Human mammary gland primary ductal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0003530 a rdfs:Class ;
  rdfs:label "A640-IS cell" ;
  rdfs:comment "Immortalized murine hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0005161 a rdfs:Class ;
  rdfs:label "KAT-18 cell" ;
  rdfs:comment "Anaplastic thyroid carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0003209 .

obo:BTO_0002315 a rdfs:Class ;
  rdfs:label "supporting cell" ;
  rdfs:comment "Cells that serve to provide support and protection and perhaps contribute to the nutrition of principal or other cells of certain organs; such cells are found in the labyrinth of the inner ear, organ of Corti, olfactory epithelium, taste buds, and seminiferous tubules (Sertoli's cells)." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0003424 a rdfs:Class ;
  rdfs:label "B16F10-Nex2 cell" ;
  rdfs:comment "B16F10-Nex2 is a subline from B16F10 murine melanoma , isolated at the Experimental Oncology Unit (UNONEX). It is characterized by low immunogenicity and moderate virulence." .

obo:BTO_0000830 a rdfs:Class ;
  rdfs:label "mast cell" ;
  rdfs:comment "A large cell that occurs especially in connective tissue and has basophilic granules containing substances (as histamine and heparin) which mediate allergic reactions." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0003813 a rdfs:Class ;
  rdfs:label "culture condition:(4R)-limonene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004104 a rdfs:Class ;
  rdfs:label "insect labium" ;
  rdfs:comment "A mouthpart of insects." .

obo:BTO_0000187 a rdfs:Class ;
  rdfs:label "myeloblast" ;
  rdfs:comment "A large mononuclear nongranular bone-marrow cell; especially: one that is a precursor of a myelocyte." .

obo:BTO_0002705 a rdfs:Class ;
  rdfs:label "septal area" ;
  rdfs:comment "The region of the cerebral hemisphere that stretches as a thin sheet of brain tissue between the fornix bundle and the ventral surface of the corpus callosum, forming the medial wall of the lateral ventricle's frontal horn; it extends ventrally through the narrow interval between the anterior commissure and the rostrum of corpus collosum as the precommissural septum or subcallosal gyrus, which is continuous caudally with the preoptic area and hypothalamus, as well as more laterally with the innominate substance; its major functional connections are with the hippocampus and hypothalamus. It is composed of a dorsal septal nucleus, lateral septal nucleus, medial septal nucleus, septofimbrial nucleus , and triangular nucleus of septum. The subformical organ is also found in this area." .

obo:BTO_0005121 a rdfs:Class ;
  rdfs:label "PC3-B1 cell" ;
  rdfs:comment "The PC3B1 cells were isolated from the bone marrow of severe combined immunodeficient (SCID) mice that had been injected 6 weeks previously with the PC3 cell line. The bone marrow containing the tumor cells was retrieved with PBS and the PC3B1 cells were propagated in tissue culture." .

obo:BTO_0003416 a rdfs:Class ;
  rdfs:label "culture condition:bovine serum albumin-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006519 a rdfs:Class ;
  rdfs:label "mesontle" ;
  rdfs:comment "The heart of the agave, when the leaves and the root are cut off, also named as the  piña of the agave. Piña literally means pineapple in Spanish but in Mexico it is also used to describe the heart of the agave because it so closely resembles a pineapple." ;
  rdfs:subClassOf obo:BTO_0003841 .

obo:BTO_0005042 a rdfs:Class ;
  rdfs:label "WM-983/B cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001953 a rdfs:Class ;
  rdfs:label "tanycyte" ;
  rdfs:comment "Modified ependymal cell of the median eminence, having a body that lies near the third ventricle and sending out processes that extend to the capillary plexus of the portal circulation. Its function is unknown, but it may transport hormones from the cerebrospinal fluid into the portal circulation or from hypothalamic neurons to the cerebrospinal fluid." .

obo:BTO_0002686 a rdfs:Class ;
  rdfs:label "central amygdaloid nucleus" ;
  rdfs:comment "A nucleus in the corticomedial part of the amygdaloid body, providing the major relay for projections from the amygdala to the brainstem and also receiving numerous return projections." .

obo:BTO_0001573 a rdfs:Class ;
  rdfs:label "brain cancer cell" ;
  rdfs:comment "Cancer cell of the central information processing center of the body. Tumors in the brain can be malignant or benign, and can occur at any age. Only malignant tumors are cancerous. Primary brain tumors cancer initially forms in the brain tissue. Secondary brain tumors cancers are cancers that have spread to the brain tissue (metastasized) from elsewhere in the body. Secondary brain cancer is named for the organ or tissue in which the cancer begins, such as lung cancer with secondary brain metastasis." .

obo:BTO_0003832 a rdfs:Class ;
  rdfs:label "culture-condition:naphthalene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000090 a rdfs:Class ;
  rdfs:label "ascidian" ;
  rdfs:comment "Any of a class (Ascidiacea) of solitary or colonial sessile tunicates that have an oral and an atrial siphon." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0003479 a rdfs:Class ;
  rdfs:label "SNU-484 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0003690 a rdfs:Class ;
  rdfs:label "mucous acinar cell" ;
  rdfs:subClassOf obo:BTO_0000433 , obo:BTO_0003689 .

obo:BTO_0004945 a rdfs:Class ;
  rdfs:label "LC4-1 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0006289 a rdfs:Class ;
  rdfs:label "Vero 2.2 cell" ;
  rdfs:comment "A derivative of Vero cells." .

obo:BTO_0000092 a rdfs:Class ;
  rdfs:label "trypanosomoid form" ;
  rdfs:comment "Any of a genus (Trypanosoma) of parasitic flagellate protozoans that infest the blood of various vertebrates including humans, are usually transmitted by the bite of an insect, and include some that cause serious disease (as sleeping sickness)." ;
  rdfs:subClassOf obo:BTO_0002503 .

obo:BTO_0004982 a rdfs:Class ;
  rdfs:label "gonocyte" ;
  rdfs:comment "The primordial germ cell." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0005028 a rdfs:Class ;
  rdfs:label "GM-4408 cell" ;
  rdfs:comment "B-lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0002062 .

obo:BTO_0005830 a rdfs:Class ;
  rdfs:label "leukodystrophy disease specific cell type" ;
  rdfs:comment "Leukodystrophy is a term for a group of white matter diseases, some familial, characterized by progressive cerebral deterioration usually in early life, and pathologically by primary absence or degeneration of the myelin of the central and peripheral nervous systems with glial reaction; probably related to a defect in lipid metabolism." .

obo:BTO_0005761 a rdfs:Class ;
  rdfs:label "adrenal glomerulosa cell" .

obo:BTO_0001769 a rdfs:Class ;
  rdfs:label "odontoblast" ;
  rdfs:comment "Any of the elongated radially arranged cells on the surface of the dental pulp that secrete dentin." .

obo:BTO_0005802 a rdfs:Class ;
  rdfs:label "dentate gyrus HICAP cell" ;
  rdfs:comment "The dentate gyrus HICAP cells (Hilar Commissural-Associational pathway related cells) are multipolar or triangular cells in the polymorphic layer with thin, aspiny dendrites that extend both within the hilus and within the molecular layer. The axons of these HICAP cells extend through the granule cell layer and branch profusely in the inner third of the molecular layer." .

obo:BTO_0005663 a rdfs:Class ;
  rdfs:label "culture condition:autotrophically-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003518 a rdfs:Class ;
  rdfs:label "GREF-X cell" ;
  rdfs:comment "Immortalized human hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0003124 a rdfs:Class ;
  rdfs:label "microvascular endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0001973 .

obo:BTO_0004530 a rdfs:Class ;
  rdfs:label "F5 meningioma cell" ;
  rdfs:comment "Human malignant meningioma cell line." ;
  rdfs:subClassOf obo:BTO_0004398 .

obo:BTO_0005643 a rdfs:Class ;
  rdfs:label "culture condition:acetate/raffinose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005362 a rdfs:Class ;
  rdfs:label "trophoblast giant cell" ;
  rdfs:comment "Trophoblast giant cells in the rodent placenta form the outermost layer of the extraembryonic compartment." .

obo:BTO_0002399 a rdfs:Class ;
  rdfs:label "PNT-2 cell" ;
  rdfs:comment "Human normal prostate epithelium cell line immortalized with SV40." ;
  rdfs:subClassOf obo:BTO_0002398 .

obo:BTO_0006049 a rdfs:Class ;
  rdfs:label "PH5CH-1 cell" ;
  rdfs:comment "Clone of PH5CH cell displaying more efficient hepatitis C virus replication." .

obo:BTO_0005082 a rdfs:Class ;
  rdfs:label "skin mucus" ;
  rdfs:comment "The epidermal mucus of fish regulates swimming speed by controlling the hydrodynamic resistance of the skin surface. The mucus is also presumed to serve as a defence against pathogenic organisms and is intimately associated with osmoregulation." ;
  rdfs:subClassOf obo:BTO_0002979 .

obo:BTO_0004921 a rdfs:Class ;
  rdfs:label "swine testicular cell line" ;
  rdfs:comment "Sus scrofa normal testicular cell line, established from a male 80-90 days old gestation embryo. This line is useful for the propagation, assay and isolation of porcine parvovirus, transmissible gastroenteritis virus and swine enteroviruses." ;
  rdfs:subClassOf obo:BTO_0004229 .

obo:BTO_0004002 a rdfs:Class ;
  rdfs:label "HEMn cell" ;
  rdfs:comment "Primary human epidermal melanocytes isolated from neonatal foreskin." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0002401 a rdfs:Class ;
  rdfs:label "feather rachis" ;
  rdfs:comment "The central shaft of the feather to which the vanes are attached." .

obo:BTO_0002921 a rdfs:Class ;
  rdfs:label "LS174T-HM7 cell" ;
  rdfs:comment "High-mucin variant cell line, derived from parental cell line LS174T." .

obo:BTO_0003005 a rdfs:Class ;
  rdfs:label "NCI-H324 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004554 a rdfs:Class ;
  rdfs:label "parotid gland duct" ;
  rdfs:comment "The excretory duct of the parotid glands." .

obo:BTO_0001963 a rdfs:Class ;
  rdfs:label "aorta cell line" .

obo:BTO_0001143 a rdfs:Class ;
  rdfs:label "pupa" ;
  rdfs:comment "An intermediate usually quiescent stage of a metamorphic insect as a bee, moth, or beetle that occurs between the larva and the imago, is usually enclosed in a cocoon or protective covering, and undergoes internal changes by which larval structures are replaced by those typical of the imago." ;
  rdfs:subClassOf obo:BTO_0000174 .

obo:BTO_0005682 a rdfs:Class ;
  rdfs:label "2B4-T cell" ;
  rdfs:comment "Mouse 2B4 T hybridoma cell line." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0006401 a rdfs:Class ;
  rdfs:label "interstitial macrophage" ;
  rdfs:comment "Nonalveolar macrophage located in the pulmonary interstitium." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0001159 a rdfs:Class ;
  rdfs:label "aorta thoracica smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001685 .

obo:BTO_0001285 a rdfs:Class ;
  rdfs:label "sporangiophore" ;
  rdfs:comment "A stalk or similar structure bearing sporangia in plants and fungi." ;
  rdfs:subClassOf obo:BTO_0000468 .

obo:BTO_0003637 a rdfs:Class ;
  rdfs:label "DG-75 cell" ;
  rdfs:comment "Human Burkitt lymphoma cell line; established from the pleural effusion of a 10-year-old boy with Burkitt's lymphoma (refractory, terminal) in 1975." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0003926 a rdfs:Class ;
  rdfs:label "renal pyramid" ;
  rdfs:comment "One of a number of pyramidal masses seen on longitudinal section of the kidney; collectively, they constitute the renal medulla, and contain part of the secreting tubules and the collecting tubules." .

obo:BTO_0002798 a rdfs:Class ;
  rdfs:label "culture condition:N-decanoyl-L-homoserine lactone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002460 a rdfs:Class ;
  rdfs:label "paraventricular nucleus" ;
  rdfs:comment "The nucleus paraventricularis anterior thalami and nuclues paraventricularis posterior thalami, two of the nuclei mediani thalami; they are situated on the dorsomedial wall of the thalamus, juxtaposed to the third ventricle." ;
  rdfs:subClassOf obo:BTO_0002454 .

obo:BTO_0003439 a rdfs:Class ;
  rdfs:label "NB-7 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001559 a rdfs:Class ;
  rdfs:label "stamen" ;
  rdfs:comment "The floral organ that produces pollen; consisting of an anther and filament." .

obo:BTO_0004115 a rdfs:Class ;
  rdfs:label "HAC cell" ;
  rdfs:comment "Human adrenocortical carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004114 .

obo:BTO_0004004 a rdfs:Class ;
  rdfs:label "3-LL cell" ;
  rdfs:comment "Murine Lewis lung carcinoma cell line." .

obo:BTO_0004400 a rdfs:Class ;
  rdfs:label "BPAEC cell" ;
  rdfs:comment "Bovine pulmonary artery endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0003150 .

obo:BTO_0002577 a rdfs:Class ;
  rdfs:label "UMR-108 cell" ;
  rdfs:comment "The UMR-108 cell line is a clonal derivative of a transplantable rat osteosarcoma that had been induced by injection of radiophosphorous (32P)." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0004038 a rdfs:Class ;
  rdfs:label "colonic neoplasm cell" ;
  rdfs:comment "An abnormal growth of tissue in animals or plants. Neoplasms can be benign or malignant." .

obo:BTO_0004544 a rdfs:Class ;
  rdfs:label "inner medullary collecting duct" .

obo:BTO_0005692 a rdfs:Class ;
  rdfs:label "column" ;
  rdfs:comment "A columnlike structure, especially one formed by the union of a stamen and the style in an orchid flower, or one formed by the united staminal filaments in flowers such as those of the hibiscus or mallow." .

obo:BTO_0004183 a rdfs:Class ;
  rdfs:label "NMuMg cell" ;
  rdfs:comment "Normal mouse mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0001880 a rdfs:Class ;
  rdfs:label "RPMI-8402 cell" ;
  rdfs:comment "Human T cell acute lymphoblastic leukemia cell line; established from the peripheral blood of a 16-year-old woman with acute lymphoblastic leukemia (ALL) in 1972." ;
  rdfs:subClassOf obo:BTO_0002144 , obo:BTO_0002504 .

obo:BTO_0003604 a rdfs:Class ;
  rdfs:label "renal parenchyma" ;
  rdfs:comment "The functional tissue of the kidney, consisting of the nephrons." .

obo:BTO_0004724 a rdfs:Class ;
  rdfs:label "animal cap" ;
  rdfs:comment "In Xenopus embryos the animal cap, which is the area around the animal pole of the blastula, is destined to form the ectoderm during normal development. However, these cells retain pluripotentiality and upon exposure to specific inducers, the animal cap can differentiate into neural, mesodermal, and endodermal tissues. In this sense, the cells of the animal cap are equivalent to mammalian embryonic stem cells." .

obo:BTO_0003156 a rdfs:Class ;
  rdfs:label "peritoneal mesothelium" .

obo:BTO_0006038 a rdfs:Class ;
  rdfs:label "LK-87 cell" ;
  rdfs:comment "Human lung non-small cell adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0005870 a rdfs:Class ;
  rdfs:label "MOVAS cell" ;
  rdfs:comment "Mouse primary vascular aortic smooth muscle cell line; established from a adult mouse of the C57BL/6 strain." ;
  rdfs:subClassOf obo:BTO_0002290 .

obo:BTO_0000384 a rdfs:Class ;
  rdfs:label "emulsin" ;
  rdfs:comment "The white milky pulp or extract of bitter almonds." ;
  rdfs:subClassOf obo:BTO_0000659 , obo:BTO_0001142 .

obo:BTO_0004634 a rdfs:Class ;
  rdfs:label "thoracico-abdominal ganglion" ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0003565 a rdfs:Class ;
  rdfs:label "HL1C cell" ;
  rdfs:comment "Rat hepatoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000518 a rdfs:Class ;
  rdfs:label "gill" ;
  rdfs:comment "A paired respiratory organ in fishes consisting of gill filaments on the gill arch in the posterior portion of the head and usually providing the primary exchange of gases between the blood and the surrounding water." ;
  rdfs:subClassOf obo:BTO_0000203 .

obo:BTO_0001297 a rdfs:Class ;
  rdfs:label "sputum" ;
  rdfs:comment "Matter ejected from the lungs, bronchi, and trachea, through the mouth." .

obo:BTO_0004738 a rdfs:Class ;
  rdfs:label "CFPAC-1 cell" ;
  rdfs:comment "This line was derived from a pancreatic duct adenocarcinoma (liver metastasis) from a patient with cystic fibrosis." ;
  rdfs:subClassOf obo:BTO_0003883 .

obo:BTO_0004081 a rdfs:Class ;
  rdfs:label "HCC-4006 cell" ;
  rdfs:comment "Non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0003644 a rdfs:Class ;
  rdfs:label "metanephric adenoma cell" ;
  rdfs:comment "A very rare benign renal tumor; only 80 well-documented cases have been reported to date. We have seen several renal tumors that were originally incorrectly diagnosed as metanephric adenoma." ;
  rdfs:subClassOf obo:BTO_0000178 , obo:BTO_0000680 .

obo:BTO_0003761 a rdfs:Class ;
  rdfs:label "SNB-19 cell" ;
  rdfs:comment "Human glioblastoma cell line; established from the surgical resection of a left parieto-occipital glioblastoma from a 47-year-old man in 1980." .

obo:BTO_0003544 a rdfs:Class ;
  rdfs:label "KU-7 cell" ;
  rdfs:comment "Human bladder cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000792 .

obo:BTO_0003969 a rdfs:Class ;
  rdfs:label "hair follicle outer root sheath" ;
  rdfs:comment "It surrounds the hair follicle like a sleeve all the way to the bulb. The outer root sheath is essentially a stratified epithelium that is contiguous with the epidermis." .

obo:BTO_0005512 a rdfs:Class ;
  rdfs:label "basal node" ;
  rdfs:comment "The node or joint at the base of the stem." ;
  rdfs:subClassOf obo:BTO_0001156 .

obo:BTO_0002098 a rdfs:Class ;
  rdfs:label "tympanum" ;
  rdfs:comment "The major portion of the middle ear (auris media), consisting of a narrow air-filled cavity in the temporal bone that contains the auditory ossicles. It communicates with the mastoid air cells and the mastoid antrum via the aditus and with the nasopharynx via the auditory tube. The middle ear and the tympanic cavity were formerly regarded as being synonymous." .

obo:BTO_0004813 a rdfs:Class ;
  rdfs:label "DMS-114 cell" ;
  rdfs:comment "The line was established from cells from a mediastinal biopsy of a patient with small cell carcinoma of the lung." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0004594 a rdfs:Class ;
  rdfs:label "CWR-22 cell" ;
  rdfs:comment "Androgen-dependent human prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0001154 a rdfs:Class ;
  rdfs:label "RAJI cell" ;
  rdfs:comment "Human Burkitt's lymphoma cell line, established from the left maxilla of a 12-year-old African boy with Burkitt's lymphoma in 1963; first continuous human hematopoietic cell line; classified as risk category 1 according to the German Central Commission for Biological Safety ZKBS." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0003258 a rdfs:Class ;
  rdfs:label "Col-1 cell" ;
  rdfs:comment "Human colonic adenocarcinoma cell line." .

obo:BTO_0003865 a rdfs:Class ;
  rdfs:label "enteroendocrine cell" ;
  rdfs:comment "A group of APUD cells found scattered along the walls of the gastrointestinal tract; their secretions affect motility, secretion of pancreatic enzymes and bile, and growth of the gastrointestinal tract epithelium, and are regulators of other endocrine substances in the intestines." ;
  rdfs:subClassOf obo:BTO_0003866 .

obo:BTO_0001764 a rdfs:Class ;
  rdfs:label "neural crest" ;
  rdfs:comment "The part of the ectoderm in a vertebrate embryo that lies on either side of the neural tube and develops into the cranial, spinal, and autonomic ganglia." .

obo:BTO_0001999 a rdfs:Class ;
  rdfs:label "culture condition:gene expression" .

obo:BTO_0004116 a rdfs:Class ;
  rdfs:label "HEP-3B2 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line with high expression of CD44, a molecule important for cell migration." .

obo:BTO_0005703 a rdfs:Class ;
  rdfs:label "culture condition:vanillate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004840 a rdfs:Class ;
  rdfs:label "OCL-3 cell" ;
  rdfs:comment "Human ovarian cancer line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0003915 a rdfs:Class ;
  rdfs:label "hairy root culture" ;
  rdfs:comment "A relatively new type of plant culture, which consists of highly branched roots of a plant, covered with a mass of tiny root hairs." ;
  rdfs:subClassOf obo:BTO_0003987 .

obo:BTO_0000382 a rdfs:Class ;
  rdfs:label "Kc cell" ;
  rdfs:comment "Drosophila embryo cell line." ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0000918 a rdfs:Class ;
  rdfs:label "nematocyst" ;
  rdfs:comment "One of the stinging organelles of coelenterates used in catching prey." ;
  rdfs:subClassOf obo:BTO_0001492 .

obo:BTO_0002047 a rdfs:Class ;
  rdfs:label "Colo-320 cell" ;
  rdfs:comment "Human colorectal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001913 .

obo:BTO_0006077 a rdfs:Class ;
  rdfs:label "SAEC cell" ;
  rdfs:comment "Primary human small airway epithelial cells, isolated from normal human lung tissue at the distal portion of lung in the 1mm bronchiole area." .

obo:BTO_0005262 a rdfs:Class ;
  rdfs:label "NEF cell" ;
  rdfs:comment "NEF cells are NIH 3T3 fibroblasts devoid of endogenous EGF-R, transfected with the human EGF-R cDNA." .

obo:BTO_0006506 a rdfs:Class ;
  rdfs:label "CL1-5 Fut8-KD cell" ;
  rdfs:comment "CL1-5 cell line with Fucosyltransferase 8, Fut8, knocked down." .

obo:BTO_0003525 a rdfs:Class ;
  rdfs:label "BSC cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0002185 a rdfs:Class ;
  rdfs:label "culture condition:2-aminobenzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001175 a rdfs:Class ;
  rdfs:label "retina" ;
  rdfs:comment "The sensory membrane that lines the eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve." .

obo:BTO_0001353 a rdfs:Class ;
  rdfs:label "telson" ;
  rdfs:comment "The terminal segment of the body of an arthropod or segmented worm; especially: that of a crustacean forming the middle lobe of the tail." .

obo:BTO_0000724 a rdfs:Class ;
  rdfs:label "lens fiber" .

obo:BTO_0003612 a rdfs:Class ;
  rdfs:label "culture condition:n-octane-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002055 a rdfs:Class ;
  rdfs:label "XD-6 cell" ;
  rdfs:comment "Tobacco (Nicotiana tabacum L. var. Xanthi) cell line." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0004706 a rdfs:Class ;
  rdfs:label "ankle joint" ;
  rdfs:comment "A hinge joint formed by the articulating of the tibia and the fibula with the talus below." ;
  rdfs:subClassOf obo:BTO_0004707 .

obo:BTO_0002689 a rdfs:Class ;
  rdfs:label "oviductal fluid" .

obo:BTO_0000931 a rdfs:Class ;
  rdfs:label "neuroblastoma cell" ;
  rdfs:comment "Malignant tumour cell derived from primitive ganglion cells. Mainly a tumour of childhood. Commonest sites are adrenal medulla and retroperitoneal tissue. The cells may partially differentiate into cells having the appearance of immature neurons." .

obo:BTO_0002802 a rdfs:Class ;
  rdfs:label "1F6 cell" ;
  rdfs:comment "The human melanoma cell line 1F6 has been established from surgically removed melanoma metastases." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006390 a rdfs:Class ;
  rdfs:label "EOC-13.31 cell" ;
  rdfs:comment "Mouse microglial cell line." ;
  rdfs:subClassOf obo:BTO_0003349 .

obo:BTO_0000933 a rdfs:Class ;
  rdfs:label "N18TG2 cell" ;
  rdfs:comment "Mouse neuroblastoma 6-thioguanine resistant mutant of cell line N18 that was established from a mouse of strain A/Jax with neuroblastoma C1300; cells were described to form cAMP in response to prostaglandin E1 and to be aneuploid (modal chromosome number of 81)." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0003750 a rdfs:Class ;
  rdfs:label "pars reticulata" ;
  rdfs:comment "The ventral part of gray matter of the substantia nigra continuous with the globus pallidus." .

obo:BTO_0000992 a rdfs:Class ;
  rdfs:label "tongue epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0005852 a rdfs:Class ;
  rdfs:label "small cell ovarian carcinoma cell line" ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0002427 a rdfs:Class ;
  rdfs:label "KYSE-150 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line; established from the poorly differentiated esophageal squamous cell carcinoma resected from upper (cervical) esophagus of a 49-year-old Japanese woman after receiving radiotherapy." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0004960 a rdfs:Class ;
  rdfs:label "CMK-86 cell" ;
  rdfs:comment "Acute megakaryoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0004961 .

obo:BTO_0000535 a rdfs:Class ;
  rdfs:label "germ cell" ;
  rdfs:comment "1. A gamete (as an egg or sperm cell) or one of its antecedent cells. 2. A mature male or female germ cell usually possessing a haploid chromosome set and capable of initiating formation of a new diploid individual by fusion with a gamete of the opposite sex." .

obo:BTO_0005172 a rdfs:Class ;
  rdfs:label "MDA-MB-231-Luc2 cell" ;
  rdfs:comment "A luciferase expressing cell line which was stably transfected with firefly luciferase gene (luc2). The cell line was established by transducing lentivirus containing luciferase 2 gene under the control of human ubiquitin C promoter." .

obo:BTO_0000153 a rdfs:Class ;
  rdfs:label "Walker carcinoma 256 cell" ;
  rdfs:comment "A cell of a transplantable carcinoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants." ;
  rdfs:subClassOf obo:BTO_0000150 , obo:BTO_0001207 .

obo:BTO_0005002 a rdfs:Class ;
  rdfs:label "pulmonary microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0003123 .

obo:BTO_0006101 a rdfs:Class ;
  rdfs:label "insect protocorm" ;
  rdfs:comment "The part of an insect embryo posterior to the protocephalon." .

obo:BTO_0004161 a rdfs:Class ;
  rdfs:label "MALME-3 cell" ;
  rdfs:comment "Human skin normal fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001673 a rdfs:Class ;
  rdfs:label "Mel Ju cell" ;
  rdfs:comment "Melanoma cell line derived from metastases of primary tumors." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006149 a rdfs:Class ;
  rdfs:label "Flp-In-T-REx cell" ;
  rdfs:comment "T-REx cell derivative with targeted integration of a Flp-In expression vector." .

obo:BTO_0006275 a rdfs:Class ;
  rdfs:label "SW-1573/S1 cell" ;
  rdfs:comment "Intrinsic CDDP resistant human non-small-cell lung cancer cell line." .

obo:BTO_0000232 a rdfs:Class ;
  rdfs:label "cerebellum" ;
  rdfs:comment "A large dorsally projecting part of the brain concerned especially with the coordination of muscles and the maintenance of bodily equilibrium, situated between the brain stem and the back of the cerebrum , and formed in humans of two lateral lobes and a median lobe." .

obo:BTO_0001781 a rdfs:Class ;
  rdfs:label "parathyroid gland cancer cell" .

obo:BTO_0004881 a rdfs:Class ;
  rdfs:label "parotid gland tumor cell" ;
  rdfs:comment "Cancer of the parotid gland. 80% of all salivary gland tumors occur in the parotid gland." .

obo:BTO_0003017 a rdfs:Class ;
  rdfs:label "COLO-699 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002947 a rdfs:Class ;
  rdfs:label "1102 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001561 a rdfs:Class ;
  rdfs:label "DAUDI cell" ;
  rdfs:comment "Human Burkitt's lymphoma cell line; established from the Burkitt's lymphoma (left orbital biopsy) of a 16-year-old African boy in 1967; cells were described to be EBV-positive and to express mRNA for proto-oncogene bcl-2." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0006368 a rdfs:Class ;
  rdfs:label "PCI-51 cell" ;
  rdfs:comment "Human head and neck squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0002037 a rdfs:Class ;
  rdfs:label "M-1 myeloid leukemia cell" ;
  rdfs:comment "Mouse myeloid leukemia cell line. Origin: bone marrow from SL mouse with spontaneous myeloid leukemia was injected into isogenic mice and the cell line was established from the ensuing hyperplastic lymph nodes 14 days later by recloning on soft agar; homotransplantable and forms colonies on soft agar (granulocytic/macrophage differentation inducible by IL-3, LPS or dexamethasone)." ;
  rdfs:subClassOf obo:BTO_0000740 .

obo:BTO_0002964 a rdfs:Class ;
  rdfs:label "1182 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003028 a rdfs:Class ;
  rdfs:label "NCI-N417 cell" ;
  rdfs:comment "Small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0002167 a rdfs:Class ;
  rdfs:label "mushroom" ;
  rdfs:comment "The fruiting body (basidiocarp) of any of a variety of basidiomycetous fleshy fungi of the order Agaricales, especially one that is edible. Poisonous species are popularly called toadstools." ;
  rdfs:subClassOf obo:BTO_0000114 .

obo:BTO_0003522 a rdfs:Class ;
  rdfs:label "CFSC cell" ;
  rdfs:comment "Immortalized rat hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0005284 a rdfs:Class ;
  rdfs:label "UML-49 cell" ;
  rdfs:comment "Human normal lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0000272 a rdfs:Class ;
  rdfs:label "colon transversum" ;
  rdfs:comment "The portion of the colon that runs transversely across the upper part of the abdomen, from the right to the left colic flexure." .

obo:BTO_0000595 a rdfs:Class ;
  rdfs:label "FDCP-1 cell" ;
  rdfs:comment "Mouse bone marrow cell line, established from the long-term bone marrow culture of B6D2F1 mice; cells are IL-3-dependent; their differentiation is blocked; this subclone is responsive to G-CSF." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0001223 a rdfs:Class ;
  rdfs:label "scutellum" ;
  rdfs:comment "The single cotyledon in monocotyledon seeds such as grass seeds." ;
  rdfs:subClassOf obo:BTO_0000300 .

obo:BTO_0004252 a rdfs:Class ;
  rdfs:label "Hepa-1c1c7-c4 cell" ;
  rdfs:comment "Aryl hydrocarbon receptor (AHR) nuclear translocator-deficient Hepa-1c1c7 cell line." .

obo:BTO_0004615 a rdfs:Class ;
  rdfs:label "regulatory dendritic cell" ;
  rdfs:subClassOf obo:BTO_0002042 .

obo:BTO_0002446 a rdfs:Class ;
  rdfs:label "medial septum" ;
  rdfs:comment "A nucleus in the septal area, coextensive with the diagonal band of Broca; it has afferent and cholinergic efferent connections with a variety of forebrain and brain stem areas including the hippocampus, the lateral hypothalamus, the tegmentum, and the amygdaloid bodies." .

obo:BTO_0002259 a rdfs:Class ;
  rdfs:label "autotrophic cell" ;
  rdfs:comment "Self-sustaining cell; said of a type of nutrition in which organisms are capable of synthesizing organic molecules as nutritive substances." ;
  rdfs:subClassOf obo:BTO_0002258 , obo:BTO_0002322 .

obo:BTO_0006057 a rdfs:Class ;
  rdfs:label "SKW-3 cell" ;
  rdfs:comment "Human T cell leukemia. Derivative of KE-37 cell line. Originally described to be established from the peripheral blood from a 61-year-old man with T cell chronic lymphocytic leukemia in 1977; however, DNA fingerprinting and cytogenetic analysis showed cross-contamination with cell line KE-37." .

obo:BTO_0005053 a rdfs:Class ;
  rdfs:label "midgut epithelium" ;
  rdfs:comment "For example the midgut epithelium of Wirenia argentea Odhner Mollusca, Solenogastres) is composed of two cell types: dorsal ciliary cells and digestive cells." .

obo:BTO_0006027 a rdfs:Class ;
  rdfs:label "HCC-95 cell" ;
  rdfs:comment "Human lung squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0004684 a rdfs:Class ;
  rdfs:label "genital pore" ;
  rdfs:comment "A small opening on the side of the head in some gastropods through which the penis is protruded." .

obo:BTO_0003678 a rdfs:Class ;
  rdfs:label "placental disc" .

obo:BTO_0001126 a rdfs:Class ;
  rdfs:label "culture condition:propionate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000456 a rdfs:Class ;
  rdfs:label "plasmacytoma cell line" ;
  rdfs:subClassOf obo:BTO_0001035 .

obo:BTO_0003355 a rdfs:Class ;
  rdfs:label "BEAS-2B/BBM cell" ;
  rdfs:comment "Human lung bronchus epithelial cell line. This line was derived from BEAS-2B cells by transfection with the B-myc/pSV2neo plasmid." .

obo:BTO_0003507 a rdfs:Class ;
  rdfs:label "tail fin cell line" .

obo:BTO_0003006 a rdfs:Class ;
  rdfs:label "NCI-H2122 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004136 a rdfs:Class ;
  rdfs:label "Kasumi-1 cell" ;
  rdfs:comment "Human acute myelocytic leukemia cell line; derived from the peripheral blood of a 7-year-old japanese boy with acute myelocytic leukemia in relapse after bone marrow transplantation." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0003847 a rdfs:Class ;
  rdfs:label "CRBM-1990 cell" ;
  rdfs:comment "Human renal cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0005320 a rdfs:Class ;
  rdfs:label "MIN6-N8 cell" ;
  rdfs:comment "Mouse insulinoma cell line." .

obo:BTO_0003594 a rdfs:Class ;
  rdfs:label "hypnozoite" ;
  rdfs:comment "Exoerythrocytic schizozoite of Plasmodium vivax or Plasmodium Ovale in the human liver, characterised by delayed primary development; thought to be responsible for malarial relapse." ;
  rdfs:subClassOf obo:BTO_0003593 .

obo:BTO_0005363 a rdfs:Class ;
  rdfs:label "COS-31 cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0003626 a rdfs:Class ;
  rdfs:label "nucleus pulposus" ;
  rdfs:comment "An elastic pulpy mass lying in the center of each intervertebral fibrocartilage and regarded as a remnant of the notochord." .

obo:BTO_0005793 a rdfs:Class ;
  rdfs:label "secondary enamel knot" ;
  rdfs:comment "The primary enamel knot forms at the tip of the bud during the cap stage of tooth development. This primary enamel knot is removed by apoptosis. Later, secondary enamel knots appear that regulate the formation of the future cusps of the teeth." ;
  rdfs:subClassOf obo:BTO_0005791 .

obo:BTO_0001302 a rdfs:Class ;
  rdfs:label "sternum" ;
  rdfs:comment "A compound ventral bone or cartilage of most vertebrates other than fishes that connects the ribs or the shoulder girdle or both and in humans consists of the manubrium, gladiolus, and xiphoid process." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0004746 a rdfs:Class ;
  rdfs:label "cecum cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001621 .

obo:BTO_0006326 a rdfs:Class ;
  rdfs:label "A2780/AD cell" ;
  rdfs:comment "A variant of A2780 human ovarian cancer cell line, resistant to doxorubicin." .

obo:BTO_0005895 a rdfs:Class ;
  rdfs:label "UACC-1308 cell" ;
  rdfs:comment "Metastatic patient-derived human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003666 a rdfs:Class ;
  rdfs:label "outer hair cell" ;
  rdfs:comment "Any of approximately 25,000 hair cells in the organ of Corti, specialized as transducers of sound waves into nerve impulses and sensitive to low sound levels, easily damaged by loud noise (over 85 decibels), and probably involved in encoding information about the loudness of sounds. So called because they are nearer to the outside of the cochlea than are the inner hair cells." .

obo:BTO_0006372 a rdfs:Class ;
  rdfs:label "NPC-TW02 cell" ;
  rdfs:comment "Human nasopharyngeal carcinoma cell line; derived from a from a 36-year-old female Chinese patient living in Taiwan." ;
  rdfs:subClassOf obo:BTO_0003960 .

obo:BTO_0001375 a rdfs:Class ;
  rdfs:label "mandibular nerve" ;
  rdfs:comment "One of three terminal divisions of the trigeminal nerve, passing through the foramen ovale to the infratemporal fossa. Origin, trigeminal ganglion; branches, meningeal ramus, masseteric, deep temporal, lateral and medial pterygoid, buccal, auriculotemporal, lingual, and inferior alveolar nerves; distribution, extensive distribution to muscles of mastication, skin of face, mucous membrane of mouth, and teeth." .

obo:BTO_0005904 a rdfs:Class ;
  rdfs:label "EM-2 cell" ;
  rdfs:comment "Human chronic myeloid leukemia cell line in blast crisis; established from the bone marrow of  5-year-old Caucasian girl with Philadelphia chromosome positive chronic myeloid leukemia in second relapse in 1980, after bone marrow transplantation day +28; sister cell line of EM-3." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0000483 a rdfs:Class ;
  rdfs:label "frond" ;
  rdfs:comment "A large leaf (especially of a palm or fern) usually with many divisions." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0004892 a rdfs:Class ;
  rdfs:label "SLT4 cell" ;
  rdfs:comment "Human bladder cancer cell line." .

obo:BTO_0001667 a rdfs:Class ;
  rdfs:label "HMB-2 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006460 a rdfs:Class ;
  rdfs:label "KMS-12-PE cell" ;
  rdfs:comment "Human multiple myeloma cell line, established in 1987 from the pleural effusion of a 64-year-old woman with refractory, terminal multiple myeloma (Ig-non-producing) after combination chemotherapy; described in the literature to carry t(11:14)(q13:q32) rearrangement; sister cell line of KMS-12-BM." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0002219 a rdfs:Class ;
  rdfs:label "adrenocortical carcinoma cell" ;
  rdfs:comment "A malignant adrenal cortical tumor that can cause endocrine disorders such as Cushing's syndrome or adrenogenital syndrome." .

obo:BTO_0000524 a rdfs:Class ;
  rdfs:label "glia" ;
  rdfs:comment "The delicate network of branched cells and fibers that supports the tissue of the central nervous system." .

obo:BTO_0003554 a rdfs:Class ;
  rdfs:label "YTS-1 cell" ;
  rdfs:comment "Human bladder tumor (transitional cell carcinoma) cell line." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0005388 a rdfs:Class ;
  rdfs:label "SUM-149 cell" ;
  rdfs:comment "Inflammatory human breast cancer cell line." .

obo:BTO_0005975 a rdfs:Class ;
  rdfs:label "NCI-H1672 cell" ;
  rdfs:comment "Human classic small cell lung cancer cell line; established from a stage L carcinoma of a 58 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005399 a rdfs:Class ;
  rdfs:label "POS cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0004862 a rdfs:Class ;
  rdfs:label "HEI-OC1 cell" ;
  rdfs:comment "The House Ear Institute-Organ of Corti 1 is one of the few, and arguable the most used, mouse auditory cell line available for research purposes." ;
  rdfs:subClassOf obo:BTO_0004861 .

obo:BTO_0003851 a rdfs:Class ;
  rdfs:label "AOK-B50 cell" ;
  rdfs:comment "A subset of LLC-PK1 porcine renal epithelial cell line that stably expresses opossum receptors for parathyroid hormone." .

obo:BTO_0004695 a rdfs:Class ;
  rdfs:label "aortic root" ;
  rdfs:comment "The part of the aorta attached to the atrioventricular fibrous rings and myocardium." .

obo:BTO_0000362 a rdfs:Class ;
  rdfs:label "urinary bladder cancer cell" ;
  rdfs:comment "Cancer cell of the organ responsible for temporarily holding urine after it leaves the kidneys." .

obo:BTO_0000089 a rdfs:Class ;
  rdfs:label "blood" ;
  rdfs:comment "1: The fluid that circulates in the heart, arteries, capillaries, and veins of a vertebrate animal carrying nourishment and oxygen to and bringing away waste products from all parts of the body. 2: A comparable fluid of an invertebrate." .

obo:BTO_0003887 a rdfs:Class ;
  rdfs:label "JHU-022 cell" ;
  rdfs:comment "Human head and neck squamous cell carcinoma (HNSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002709 .

obo:BTO_0000955 a rdfs:Class ;
  rdfs:label "laryngeal cell line" .

obo:BTO_0005768 a rdfs:Class ;
  rdfs:label "epididymal epithelium" ;
  rdfs:comment "In the epididymal epithelium, the tall columnar cells and shorter basal cells give the appearance of two rows of nuclei. However, both types of cells together really form a single layer with every cell sitting on the basement membrane. Hence this epithelium is pseudostratified. The epididymal epithelium is supported by loose connective tissue." .

obo:BTO_0001498 a rdfs:Class ;
  rdfs:label "renal proximal tubule" ;
  rdfs:comment "The convoluted portion of the vertebrate nephron that lies between Bowman's capsule and the loop of Henle and functions especially in the resorption of sugar, sodium and chloride ions, and water from the glomerular filtrate." .

obo:BTO_0005095 a rdfs:Class ;
  rdfs:label "H4-C99 cell" ;
  rdfs:comment "H4 neuroglioma cells expressing intracellular amyloid beta precursor protein (APP) C99." .

obo:BTO_0000445 a rdfs:Class ;
  rdfs:label "cerebral lobe" ;
  rdfs:comment "The well defined areas of the cerebral cortex, demarcated by fissures, sulci, and arbitrary lines, including the frontal, temporal, parietal, and occipital lobes." .

obo:BTO_0001450 a rdfs:Class ;
  rdfs:label "vitelline membrane" ;
  rdfs:comment "The cytoplasmic, noncellular membrane surrounding the eggs of various animals, especially the membrane enveloping the yolk of telolecithal eggs." .

obo:BTO_0003102 a rdfs:Class ;
  rdfs:label "pyramidal neuron" ;
  rdfs:comment "A pyramidal cell is a multipolar neuron located in the hippocampus and cerebral cortex. These cells have a triangularly shaped soma, or cell body, a single apical dendrite extending towards the pial surface, multiple basal dendrites, and a single axon." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0005990 a rdfs:Class ;
  rdfs:label "mesonephric duct" ;
  rdfs:comment "The mesonephric duct is a paired organ found in mammals including humans during embryogenesis. The mesonephric duct connects the primitive kidney, the mesonephros, to the cloaca and serves as the anlage for certain male reproductive organs." .

obo:BTO_0002390 a rdfs:Class ;
  rdfs:label "U-1568 cell" ;
  rdfs:comment "Small cell carcinoma of the lung (SCC). The U-1568 originated from a larger cell variant of SCC." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0002838 a rdfs:Class ;
  rdfs:label "HT-29/219 cell" ;
  rdfs:comment "Human colorectal tumor cell line." .

obo:BTO_0005681 a rdfs:Class ;
  rdfs:label "storage root" ;
  rdfs:comment "A modified root for storage of food or water, such as carrots and beets." ;
  rdfs:subClassOf obo:BTO_0001188 .

obo:BTO_0004189 a rdfs:Class ;
  rdfs:label "NCI/ADR cell" ;
  rdfs:comment "Multidrug-resistant derivative of OVCAR-8." .

obo:BTO_0005884 a rdfs:Class ;
  rdfs:label "scolopale cap cell" ;
  rdfs:comment "A scolopidium is a composition of three cells, a scolopale cap cell which caps the scolopale cell, and a bipolar sensory nerve cell. Scolopidia are sensitive to things like sound (vibrations of the air) or substrate vibrations (feeling vibrations on a leaf, for instance) depending on the structure of the overall sense organ in which they reside." .

obo:BTO_0001591 a rdfs:Class ;
  rdfs:label "PA-1 cell" ;
  rdfs:comment "Human ovary ascites teratocarcinoma cell line. The line was established from cells taken from ascitic fluid." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0001742 a rdfs:Class ;
  rdfs:label "jejunal mucosa" ;
  rdfs:subClassOf obo:BTO_0000642 .

obo:BTO_0004786 a rdfs:Class ;
  rdfs:label "SCMC-ES1 cell" ;
  rdfs:comment "Ewing's sarcoma family tumor cell line." ;
  rdfs:subClassOf obo:BTO_0004785 .

obo:BTO_0005428 a rdfs:Class ;
  rdfs:label "NW-624 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004900 a rdfs:Class ;
  rdfs:label "pulmonary venous myocardium" ;
  rdfs:comment "The pulmonary venous myocardium represents the extension of atrial myocardium into the vascular wall of the pulmonary vein." ;
  rdfs:subClassOf obo:BTO_0000901 .

obo:BTO_0000636 a rdfs:Class ;
  rdfs:label "internode" ;
  rdfs:comment "Region on a stem between nodes." .

obo:BTO_0005494 a rdfs:Class ;
  rdfs:label "N-1511 cell" ;
  rdfs:comment "Clonal chondrocytic cell line N1511 derived from rib cartilage of a p53-null mouse." ;
  rdfs:subClassOf obo:BTO_0003858 .

obo:BTO_0006174 a rdfs:Class ;
  rdfs:label "smooth adductor muscle" ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0000221 a rdfs:Class ;
  rdfs:label "cell suspension culture" ;
  rdfs:comment "Particles floating in (not necessarily on) a liquid medium, or the mix of particles and liquid itself." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0004312 a rdfs:Class ;
  rdfs:label "JIMT-1 cell" ;
  rdfs:comment "Human breast carcinoma cell line; established from the pleural effusion of a 62-year-old woman with ductal breast cancer (grade 3 invasive, T2N1M0) after postoperative radiation in 2003." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002301 a rdfs:Class ;
  rdfs:label "mucinous cystadenoma cell" ;
  rdfs:comment "A cell of a multilocular tumor produced by the epithelial cells of the ovary and having mucin-filled cavities; the great majority of these tumors are benign." ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0005520 a rdfs:Class ;
  rdfs:label "uterine seam cell" ;
  rdfs:comment "Caenorhabditis elegans membranous cell attaches the uterus to the lateral epidermis (seam) and forms a thin laminar process dorsal to the vulva." ;
  rdfs:subClassOf obo:BTO_0003099 .

obo:BTO_0006564 a rdfs:Class ;
  rdfs:label "NCI-H1628 cell" ;
  rdfs:comment "Human lung small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0006052 a rdfs:Class ;
  rdfs:label "SJNB-10 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001381 a rdfs:Class ;
  rdfs:label "tibial chondrocyte" ;
  rdfs:comment "Chondrocyte pertaining to the tibia." ;
  rdfs:subClassOf obo:BTO_0000207 , obo:BTO_0000249 .

obo:BTO_0003366 a rdfs:Class ;
  rdfs:label "robust nucleus of arcopallium" ;
  rdfs:comment "A specialized nucleus within the intermediate archistriatum of songbirds, required for and active during the production of learned song." .

obo:BTO_0001991 a rdfs:Class ;
  rdfs:label "culture condition:phthalate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000755 a rdfs:Class ;
  rdfs:label "Leydig cell" ;
  rdfs:comment "Interstitial cells of the testis, which secrete testosterone." ;
  rdfs:subClassOf obo:BTO_0004238 .

obo:BTO_0003193 a rdfs:Class ;
  rdfs:label "SK-RC-1 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0002736 a rdfs:Class ;
  rdfs:label "OCM-1 cell" ;
  rdfs:comment "Human choroidal melanoma, the most frequent primary ocular neoplasm in humans." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000358 a rdfs:Class ;
  rdfs:label "McA-RH7777 cell" ;
  rdfs:comment "Liver, hepatoma; Morris hepatoma 7777 cell line, established from a rattus norvegicus female." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0006293 a rdfs:Class ;
  rdfs:label "breast cancer stem cell" ;
  rdfs:subClassOf obo:BTO_0004254 .

obo:BTO_0000626 a rdfs:Class ;
  rdfs:label "culture condition:DL-5-methyltryptophan-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005534 a rdfs:Class ;
  rdfs:label "arcuate nucleus" ;
  rdfs:comment "Any of various specialized groups of nerve cells in the medulla oblongata, thalamus, or hypothalamus of the brain." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0005371 a rdfs:Class ;
  rdfs:label "hymenium" ;
  rdfs:comment "The spore-bearing layer of the fruiting body of certain fungi, containing asci or basidia." .

obo:BTO_0001797 a rdfs:Class ;
  rdfs:label "promyelocytic leukemia cell" ;
  rdfs:comment "A cell of a type of acute myeloid leukemia, a quickly progressing disease in which too many immature blood-forming cells are found in the blood and bone marrow." ;
  rdfs:subClassOf obo:BTO_0001545 .

obo:BTO_0001349 a rdfs:Class ;
  rdfs:label "NRP-152 cell" ;
  rdfs:comment "Non-tumorigenic rat prostatic epithelial line." ;
  rdfs:subClassOf obo:BTO_0001019 .

obo:BTO_0001678 a rdfs:Class ;
  rdfs:label "Th1 cell" ;
  rdfs:comment "Subset of helper-inducer T-lymphocytes which synthesize and secrete interleukin-2, gamma-interferon, and interleukin-12. Due to their ability to kill antigen-presenting cells and their lymphokine-mediated effector activity, Th1 cells are associated with vigorous delayed-type hypersensitivity reactions." ;
  rdfs:subClassOf obo:BTO_0002417 .

obo:BTO_0003587 a rdfs:Class ;
  rdfs:label "HeLa-MAGI-CCR5 cell" ;
  rdfs:comment "A HeLa-CD4 cell line that expresses CCR5 and that has an integrated copy of the HIV-1 long terminal repeat (LTR)-driven ?-d-galactosidase reporter gene." .

obo:BTO_0005562 a rdfs:Class ;
  rdfs:label "cardiac microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0003123 .

obo:BTO_0001629 a rdfs:Class ;
  rdfs:label "left ventricle" ;
  rdfs:comment "The ventricles are the two lower chambers of the heart. The left ventricle is the chamber that receives blood from the left atrium and pumps it out under high pressure to the body via the aorta." .

obo:BTO_0000670 a rdfs:Class ;
  rdfs:label "KG-1 cell" ;
  rdfs:comment "Human acute myeloid leukemia, established from the bone marrow of a 59-year-old man with erythroleukemia that developed into acute myeloid leukemia (AML) at relapse in 1977; cells were described to form colonies in soft-agar in response to colony-stimulating factor." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0006352 a rdfs:Class ;
  rdfs:label "glomerular macrophage" ;
  rdfs:comment "Macrophage of the glomerulus." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0004099 a rdfs:Class ;
  rdfs:label "parathyroid gland clear cell" ;
  rdfs:comment "Cell with empty-appearing cytoplasm; seen normally in the sweat glands, the parathyroid glands, the collecting tubules of the kidneys, and the epididymis; they also appear in some types of cancer." .

obo:BTO_0002910 a rdfs:Class ;
  rdfs:label "S194/5.XXO-1 cell" ;
  rdfs:comment "Mouse B-lymphocyte myeloma/plasmacytoma cell line. This line was derived from an IgA secreting mineral oil induced BALB/c myeloma." ;
  rdfs:subClassOf obo:BTO_0000456 .

obo:BTO_0005120 a rdfs:Class ;
  rdfs:label "neuroectodermal tumor cell" ;
  rdfs:comment "A neuroectodermal tumor is a tumor of the central or peripheral nervous system." .

obo:BTO_0000373 a rdfs:Class ;
  rdfs:label "Ehrlich ascites carcinoma cell" ;
  rdfs:comment "Mouse cancer cell." ;
  rdfs:subClassOf obo:BTO_0000150 .

obo:BTO_0002081 a rdfs:Class ;
  rdfs:label "senile osteomalacia cell" ;
  rdfs:comment "Senile osteomalacia is the softening of bones in old age due to vitamin D deficiency." ;
  rdfs:subClassOf obo:BTO_0002076 .

obo:BTO_0000731 a rdfs:Class ;
  rdfs:label "acute lymphoblastic leukemia cell" ;
  rdfs:comment "Lymphocytic leukemia cell that is marked by an abnormal increase in the number of lymphoblasts, that is characterized by rapid onset and progression of symptoms which include fever, anemia, pallor, fatigue, appetite loss, bleeding, thrombocytopenia, granulocytopenia, bone and joint pain, and enlargement of the lymph nodes, liver, and spleen, and that occurs chiefly during childhood." ;
  rdfs:subClassOf obo:BTO_0003676 .

obo:BTO_0006306 a rdfs:Class ;
  rdfs:label "stichosome" ;
  rdfs:comment "A column of glandular cells associated with the esophagus of various nematodes." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0006375 a rdfs:Class ;
  rdfs:label "5TGM1 cell" ;
  rdfs:comment "Mouse multiple myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0005944 a rdfs:Class ;
  rdfs:label "epididymal white adipose tissue" ;
  rdfs:comment "Visceral fat is composed of several adipose depots, including mesenteric, epididymal white adipose tissue EWAT, and perirenal depots." ;
  rdfs:subClassOf obo:BTO_0001456 .

obo:BTO_0000494 a rdfs:Class ;
  rdfs:label "germinal disc" ;
  rdfs:comment "A flattish area in a blastocyst in which the first traces of the embryo are seen, visible early in the second week in human development." ;
  rdfs:subClassOf obo:BTO_0000514 .

obo:BTO_0000964 a rdfs:Class ;
  rdfs:label "oocyte" ;
  rdfs:comment "The immature reproductive cell prior to fertilization; it is derived from an oogonium, and is called a primary oocyte prior to completion of the first maturation division, and a secondary oocyte between the first and second maturation division." ;
  rdfs:subClassOf obo:BTO_0000535 .

obo:BTO_0003932 a rdfs:Class ;
  rdfs:label "KMS-11 cell" ;
  rdfs:comment "Multiple myeloma cell line." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0004919 a rdfs:Class ;
  rdfs:label "ZR-75 cell" ;
  rdfs:comment "Human non-invasive mammary gland breast cancer cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0002006 a rdfs:Class ;
  rdfs:label "ALVA-41 cell" ;
  rdfs:comment "Human prostate cancer cell line." .

obo:BTO_0003723 a rdfs:Class ;
  rdfs:label "UM-UC-3 cell" ;
  rdfs:comment "Human urinary bladder transitional cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002868 .

obo:BTO_0005617 a rdfs:Class ;
  rdfs:label "Sly-1 cell" ;
  rdfs:comment "Cell line of Lycopersicon esculentum Mill.." ;
  rdfs:subClassOf obo:BTO_0001971 .

obo:BTO_0001338 a rdfs:Class ;
  rdfs:label "synovial tissue" ;
  rdfs:comment "Synovial tissue can be found in tendons (tissues that connect muscle to bone), bursae (fluid-filled, cushioning sacs found in spaces between tendons, ligaments, and bones), and the cavity (hollow enclosed area) that separates the bones of a freely movable joint, such as the knee or elbow." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0001185 a rdfs:Class ;
  rdfs:label "RINm5F cell" ;
  rdfs:comment "Insulin secreting pancreatic beta cell line." ;
  rdfs:subClassOf obo:BTO_0000183 .

obo:BTO_0002026 a rdfs:Class ;
  rdfs:label "HSC-4 cell" ;
  rdfs:comment "Human oral squamous cell carcinoma (OSCC) cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0002958 a rdfs:Class ;
  rdfs:label "DM93 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001205 a rdfs:Class ;
  rdfs:label "RT4-D6P2T cell" ;
  rdfs:comment "Rat, nervous system, immature, Schwann cell derived cell line." ;
  rdfs:subClassOf obo:BTO_0000872 , obo:BTO_0001216 .

obo:BTO_0002708 a rdfs:Class ;
  rdfs:label "GT1-7 cell" ;
  rdfs:comment "Immortalized female rat hypothalamus gonadotropin-releasing hormone (GnRH) neurons." .

obo:BTO_0002388 a rdfs:Class ;
  rdfs:label "GLC-4/CDDP cell" ;
  rdfs:comment "A subline of human small cell lung cancer (SCLC) cell line (GLC4) with in vitro acquired resistance to cisplatin (GLC4/CDDP)." .

obo:BTO_0005254 a rdfs:Class ;
  rdfs:label "CHP-126 cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0004207 a rdfs:Class ;
  rdfs:label "RXF-393 cell" ;
  rdfs:comment "Renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0003904 a rdfs:Class ;
  rdfs:label "HOS cell" ;
  rdfs:comment "Homo sapiens bone osteosarcoma cell line; established from a 13-years-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0001035 a rdfs:Class ;
  rdfs:label "hematopoietic cell line" .

obo:BTO_0005035 a rdfs:Class ;
  rdfs:label "Fanconi anemia disease specific cell type" ;
  rdfs:comment "Fanconi's anemia is a disease passed down through families (inherited) that mainly affects the bone marrow. It results in decreased production of all types of blood cells. Fanconi's anemia is different from Fanconi syndrome, a rare kidney disorder." .

obo:BTO_0001699 a rdfs:Class ;
  rdfs:label "bursa of Fabricius" ;
  rdfs:comment "A lymphoid organ that opens into the cloaca of birds and functions in B-cell production." ;
  rdfs:subClassOf obo:BTO_0000753 .

obo:BTO_0004375 a rdfs:Class ;
  rdfs:label "ventral globus pallidus" ;
  rdfs:comment "Those parts of the globus pallidus located inferior to the anterior commissure, includes portions of the substantia innominata, along with the ventral striatum is believed to function in motor activities with strong motivational or emotional constructs." .

obo:BTO_0000499 a rdfs:Class ;
  rdfs:label "gastric corpus mucosa" .

obo:BTO_0005894 a rdfs:Class ;
  rdfs:label "pigmented ciliary epithelium" ;
  rdfs:comment "The ciliary epithelium is composed of two layers juxtaposed, the proximal pigmented epithelium and the distal nonpigmented epithelium." .

obo:BTO_0003402 a rdfs:Class ;
  rdfs:label "hyperpallium apicale" .

obo:BTO_0005960 a rdfs:Class ;
  rdfs:label "ovarian follicular epithelial cell" ;
  rdfs:comment "A cell lining a follicle such as that of the thyroid gland." .

obo:BTO_0004971 a rdfs:Class ;
  rdfs:label "1BR3.G cell" ;
  rdfs:comment "Human skin fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001770 a rdfs:Class ;
  rdfs:label "ciliary epithelium" ;
  rdfs:comment "The ciliary epithelium produces the aqueous humor of the eye." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000986 a rdfs:Class ;
  rdfs:label "pachytene cell" ;
  rdfs:comment "A cell in the third stage of prophase I of meiosis, during which the homologous chromosomes are closely paired and crossing-over takes place." ;
  rdfs:subClassOf obo:BTO_0000845 .

obo:BTO_0003807 a rdfs:Class ;
  rdfs:label "BJ cell" ;
  rdfs:comment "Human normal foreskin fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0002245 .

obo:BTO_0005422 a rdfs:Class ;
  rdfs:label "culture condition:(+)-camphor-grown cell" ;
  rdfs:subClassOf obo:BTO_0006230 .

obo:BTO_0000745 a rdfs:Class ;
  rdfs:label "Lewis lung carcinoma cell" ;
  rdfs:comment "A cell of a carcinoma discovered by dr. Margaret r. Lewis of the wistar institute in 1951. This tumour originated spontaneously as a carcinoma of the lung of a c57bl mouse. The tumour does not appear to be grossly haemorrhagic and the majority of the tumour tissue is a semifirm homogeneous mass. It is also called 3ll and llc and is used as a transplantable malignancy." ;
  rdfs:subClassOf obo:BTO_0000551 .

obo:BTO_0004566 a rdfs:Class ;
  rdfs:label "Rb-1 cell" ;
  rdfs:comment "A smooth muscle cell line derived from rabbit aorta." ;
  rdfs:subClassOf obo:BTO_0001964 .

obo:BTO_0001059 a rdfs:Class ;
  rdfs:label "culture condition:phosphonoacetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003323 a rdfs:Class ;
  rdfs:label "HCC-1937 cell" ;
  rdfs:comment "A primary ductal breast carcinoma cell line, initiated from a primary ductal carcinoma on October 13, 1995. The tumor was classified as TNM Stage IIB, grade 3." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0006286 a rdfs:Class ;
  rdfs:label "disc floret" ;
  rdfs:comment "Any of the small tubular flowers at the centre of the flower head of certain composite plants, such as the daisy." ;
  rdfs:subClassOf obo:BTO_0000468 .

obo:BTO_0005020 a rdfs:Class ;
  rdfs:label "cytotrophoblast cell line" ;
  rdfs:subClassOf obo:BTO_0003420 .

obo:BTO_0004431 a rdfs:Class ;
  rdfs:label "coronary artery endothelial cell line" .

obo:BTO_0004318 a rdfs:Class ;
  rdfs:label "WB-F344 cell" ;
  rdfs:comment "Non-tumorigenic rat liver epithelial cell line. Adult liver stem cell line; established from a single cloned nonparenchymal epithelial cell isolated from a normal male adult rat liver." ;
  rdfs:subClassOf obo:BTO_0002929 , obo:BTO_0002931 .

obo:BTO_0001618 a rdfs:Class ;
  rdfs:label "F28-7 cell" ;
  rdfs:comment "A subclonal line of C3H mouse mammary carcinoma FM3A cells in culture." ;
  rdfs:subClassOf obo:BTO_0000472 .

obo:BTO_0003096 a rdfs:Class ;
  rdfs:label "internal male genital organ" ;
  rdfs:comment "The internal organs in the male that are concerned with reproduction, including the testis, epididymis, ductus deferens, seminal vesicle, ejaculatory duct, prostate, and bulbourethral gland." .

obo:BTO_0002733 a rdfs:Class ;
  rdfs:label "embryonic kidney cell line" ;
  rdfs:subClassOf obo:BTO_0000669 .

obo:BTO_0001230 a rdfs:Class ;
  rdfs:label "semen" ;
  rdfs:comment "A viscid whitish fluid of the male reproductive tract consisting of spermatozoa suspended in secretions of accessory glands." .

obo:BTO_0004128 a rdfs:Class ;
  rdfs:label "lung endothelium" ;
  rdfs:subClassOf obo:BTO_0000393 , obo:BTO_0001653 .

obo:BTO_0000315 a rdfs:Class ;
  rdfs:label "ectoderm" ;
  rdfs:comment "The outer of the three germ layers of the embryo (the other two being mesoderm and endoderm). Ectoderm gives rise to epidermis and neural tissue." ;
  rdfs:subClassOf obo:BTO_0000556 .

obo:BTO_0005911 a rdfs:Class ;
  rdfs:label "KM-20L2 cell" ;
  rdfs:comment "Human colon carcinoma cell line." .

obo:BTO_0003302 a rdfs:Class ;
  rdfs:label "MDA-Panc-3 cell" ;
  rdfs:comment "Human pancreatic adenocarcinoma cell line; established from a liver metastasis of a human pancreatic adenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001521 .

obo:BTO_0004642 a rdfs:Class ;
  rdfs:label "abductor" ;
  rdfs:comment "Any muscle used to pull a body part away from the midline of the body. For example, the abductor muscles of the legs spread the legs away from the midline and away from one another. An abductor muscle opposes an adductor muscle." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0001278 a rdfs:Class ;
  rdfs:label "spike" ;
  rdfs:comment "An elongated inflorescence similar to a raceme but having the flowers sessile on the main axis." ;
  rdfs:subClassOf obo:BTO_0000469 .

obo:BTO_0005060 a rdfs:Class ;
  rdfs:label "UACC-903 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004948 a rdfs:Class ;
  rdfs:label "UTP-2 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0005094 a rdfs:Class ;
  rdfs:label "leaf sheath" ;
  rdfs:comment "The basal part of a grass leaf that encircles the stem." .

obo:BTO_0005354 a rdfs:Class ;
  rdfs:label "D17 cell" ;
  rdfs:comment "Canine osteosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0004030 a rdfs:Class ;
  rdfs:label "95-H3 cell" ;
  rdfs:comment "Low metastatic macrophage fusion hybrid cell line; established from a preparation of mouse peritoneal macrophages from syngenic DBA/2J mice, and fusion with the G418-resistant Cloudman S91 cell line, PS1- HGPRT-1 (also referred to as 6neo)." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0002787 a rdfs:Class ;
  rdfs:label "clear cell adenocarcinoma cell" ;
  rdfs:comment "A rare malignant tumor of the female genital tract, resembling a renal cell carcinoma and containing tubules or small cysts with some cells that are hobnail-shaped and others whose cytoplasm is clear, containing abundant glycogen and inconspicuous stroma. It may occur in the ovary, uterus, cervix, or vagina." ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0006200 a rdfs:Class ;
  rdfs:label "250MK cell" ;
  rdfs:comment "Normal human mammary epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0000569 a rdfs:Class ;
  rdfs:label "exoerythrocytic stage" ;
  rdfs:comment "The spozoites move to the liver, enter liver cells and replicate asexually through schizogony. This is the exoerythrocytic stage." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0001549 a rdfs:Class ;
  rdfs:label "megakaryocyte cell line" .

obo:BTO_0000521 a rdfs:Class ;
  rdfs:label "gizzard smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0000530 a rdfs:Class ;
  rdfs:label "renal glomerulus" ;
  rdfs:comment "Globular tufts of capillaries, one projecting into the expanded end or capsule of each of the uriniferous tubules, which together with its surrounding capsule (glomerular capsule) constitute the renal corpuscle." .

obo:BTO_0006327 a rdfs:Class ;
  rdfs:label "Phoenix-AMPHO cell" ;
  rdfs:comment "EK 293T/17 cells were transformed with adenovirus E1a carrying a temperature sensitive T antigen co-selected with neomycin." .

obo:BTO_0001121 a rdfs:Class ;
  rdfs:label "cauline leaf" ;
  rdfs:comment "Of, having, or growing on a stem. Used especially of leaves arising from the upper part of a stem." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0001370 a rdfs:Class ;
  rdfs:label "THP-1 cell" ;
  rdfs:comment "Human acute monocytic leukemia established from the peripheral blood of a 1-year-old boy with acute monocytic leukemia (AML) at relapse in 1978; the cells can be used for induction of differentiation studies; the cells were described to produce lysozyme and to be phagocytic." ;
  rdfs:subClassOf obo:BTO_0002332 .

obo:BTO_0003663 a rdfs:Class ;
  rdfs:label "nucleus recessus posterioris" ;
  rdfs:comment "The fish catecholamines originate in two large aggregations of neurons: the nucleus recessus lateralis (NRL) and the nucleus recessus posterioris (NRP). The nuclei were found in the hypothalamus of numerous species, e.g., the gold fish, eel, and roach." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0001757 a rdfs:Class ;
  rdfs:label "medulloblastoma cell" ;
  rdfs:comment "A cell of a malignant, highly radiosensitive cerebellar tumor composed of undifferentiated neuroglial cells." ;
  rdfs:subClassOf obo:BTO_0000526 .

obo:BTO_0001307 a rdfs:Class ;
  rdfs:label "stomach" ;
  rdfs:comment "A dilatation of the alimentary canal of a vertebrate communicating anteriorly with the esophagus and posteriorly with the duodenum." .

obo:BTO_0003719 a rdfs:Class ;
  rdfs:label "V-79-4 cell" ;
  rdfs:comment "Lung cell line; derived from the lung tissue of a male Chinese hamster; clone of V79 cell line." .

obo:BTO_0005696 a rdfs:Class ;
  rdfs:label "amoeboid microglia" ;
  rdfs:comment "This form of microglial cell is found mainly within the perinatal white matter areas in the corpus callosum known as the Fountains of Microglia. This shape allows the microglial free movement throughout the neural tissue, which allows it to fulfill its role as a scavenger cell. Amoeboid microglia are able to phagocytose debris, but do not fulfill the same antigen-presenting and inflammatory roles as activated microglia. Amoeboid microglia are especially prevalent during the development and rewiring of the brain, when there are large amounts of extracellular debris and apoptotic cells to remove." ;
  rdfs:subClassOf obo:BTO_0000078 .

obo:BTO_0005393 a rdfs:Class ;
  rdfs:label "SUM-190 cell" ;
  rdfs:comment "Human breast cancer cell line." .

obo:BTO_0003259 a rdfs:Class ;
  rdfs:label "Col-24 cell" ;
  rdfs:comment "Human colonic adenocarcinoma cell line." .

obo:BTO_0001823 a rdfs:Class ;
  rdfs:label "synovium" ;
  rdfs:comment "The dense connective-tissue membrane that secretes synovial fluid and that lines the ligamentous surfaces of articular capsules, tendon sheaths where free movement is necessary, and bursae." .

obo:BTO_0002171 a rdfs:Class ;
  rdfs:label "amelanotic melanoma cell line" ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001259 a rdfs:Class ;
  rdfs:label "small intestine mucosa" ;
  rdfs:subClassOf obo:BTO_0000642 , obo:BTO_0000651 .

obo:BTO_0005251 a rdfs:Class ;
  rdfs:label "ink sac" ;
  rdfs:comment "With the exception of nocturnal and very deep water cephalopods, all coeloids which dwell in light conditions have an ink sac, which can be used to expel a cloud of dark ink to confuse predators. This sac is a muscular bag which originated as an extension of the hind gut. It lies beneath the gut and opens into the anus, into which its contents - almost pure melanin - can be squirted." .

obo:BTO_0001656 a rdfs:Class ;
  rdfs:label "nerve cord" ;
  rdfs:comment "1. The pair of closely united ventral longitudinal nerves with their segmental ganglia that is characteristic of many elongate invertebrates (as earthworms). 2. The dorsal tubular cord of nervous tissue above the notochord of a chordate that comprises or develops into the central nervous system." .

obo:BTO_0001174 a rdfs:Class ;
  rdfs:label "reticuloendothelial system" ;
  rdfs:comment "A diffuse system of cells of varying lineage that include especially the macrophages and the phagocytic endothelial cells lining blood sinuses and that were originally grouped together because of their supposed phagocytic properties based on their ability to take up the vital dye trypan blue." .

obo:BTO_0004709 a rdfs:Class ;
  rdfs:label "thyroid primordium" ;
  rdfs:comment "In embryology, organ or tissue in its earliest recognizable stage of development. As, for example, the thyroid primordium." ;
  rdfs:subClassOf obo:BTO_0001886 .

obo:BTO_0000874 a rdfs:Class ;
  rdfs:label "molting gland" ;
  rdfs:comment "Either of a pair of endocrine glands located in the prothorax of certain insects and regulating molting." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0003340 a rdfs:Class ;
  rdfs:label "CL-3 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0004167 a rdfs:Class ;
  rdfs:label "lymphatic endothelial cell" ;
  rdfs:comment "The main type of cell found in the inside lining of lymph vessels." ;
  rdfs:subClassOf obo:BTO_0001176 .

obo:BTO_0003172 a rdfs:Class ;
  rdfs:label "KM-12 cell" ;
  rdfs:comment "Human colon carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0005276 a rdfs:Class ;
  rdfs:label "HPK1A cell" ;
  rdfs:comment "Established human keratinocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000375 .

obo:BTO_0002805 a rdfs:Class ;
  rdfs:label "M14 melanoma cell" ;
  rdfs:comment "The human melanoma cell line M14 has been established from surgically removed melanoma metastases." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0006192 a rdfs:Class ;
  rdfs:label "glomus cell" ;
  rdfs:comment "A glomus cell (type I) is a peripheral chemoreceptor, mainly located in the carotid bodies and aortic bodies, that helps the body regulate breathing." ;
  rdfs:subClassOf obo:BTO_0005729 .

obo:BTO_0003511 a rdfs:Class ;
  rdfs:label "alveolar epithelium" ;
  rdfs:comment "Epithelia of lung alveoli. The layer of cells covering the lining of the tiny air sacs at the end of the bronchioles." .

obo:BTO_0006357 a rdfs:Class ;
  rdfs:label "renal neoplasm cell" ;
  rdfs:comment "An abnormal growth of tissue in animals or plants. Neoplasms can be benign or malignant." .

obo:BTO_0002888 a rdfs:Class ;
  rdfs:label "Th-1 cell line" .

obo:BTO_0004077 a rdfs:Class ;
  rdfs:label "EKVX cell" ;
  rdfs:comment "Non-small cell lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0003330 a rdfs:Class ;
  rdfs:label "culture condition:n-hexadecane-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000183 a rdfs:Class ;
  rdfs:label "pancreatic cell line" .

obo:BTO_0005265 a rdfs:Class ;
  rdfs:label "nonparenchymal liver cell" ;
  rdfs:comment "Hepatocytes may constitute 60 to 80 % of the mass of the liver tissue. The remaining tissue is made up of non-parenchymal cells such as sinusoidal endothelial cells, hepatic stellate cells, Kupffer cells and blood cells." .

obo:BTO_0005556 a rdfs:Class ;
  rdfs:label "luminal prostate epithelium cell" ;
  rdfs:comment "Normal prostatic epithelium is composed of basal and luminal cells." .

obo:BTO_0001042 a rdfs:Class ;
  rdfs:label "amygdala" ;
  rdfs:comment "The one of the four basal ganglia in each cerebral hemisphere that is part of the limbic system and consists of an almond-shaped mass of gray matter in the anterior extremity of the temporal lobe." ;
  rdfs:subClassOf obo:BTO_0000235 .

obo:BTO_0001291 a rdfs:Class ;
  rdfs:label "sporophore" ;
  rdfs:comment "The spore-producing organ of a fungus or slime mold." .

obo:BTO_0005982 a rdfs:Class ;
  rdfs:label "P69 prostate cancer cell" ;
  rdfs:comment "The P69 cell line was derived by immortalization of human primary prostate epithelial cells with simian virus-40 T antigen and is rarely tumorigenic." ;
  rdfs:subClassOf obo:BTO_0002398 .

obo:BTO_0003876 a rdfs:Class ;
  rdfs:label "plant funiculus" ;
  rdfs:comment "The stalk attaching an ovule to the ovary wall in a flower or fruit." .

obo:BTO_0006088 a rdfs:Class ;
  rdfs:label "KEL-FIB cell" ;
  rdfs:comment "Human skin connective tissue normal fibroblast cell line; established from a 35 years old black female." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0003291 a rdfs:Class ;
  rdfs:label "P493-6 cell" ;
  rdfs:comment "Human Burkitt's lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0000975 a rdfs:Class ;
  rdfs:label "ovary" ;
  rdfs:comment "One of the typically paired essential female reproductive organs that produce eggs and in vertebrates female sex hormones." ;
  rdfs:subClassOf obo:BTO_0000254 , obo:BTO_0003099 .

obo:BTO_0000472 a rdfs:Class ;
  rdfs:label "FM3A cell" ;
  rdfs:comment "Mouse mammary carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0006315 a rdfs:Class ;
  rdfs:label "shell peduncle" ;
  rdfs:comment "Pedunculate, goose or goose-neck barnacles have a flexible, muscular stalk, known as the peduncle, which supports the main body known as the capitulum. In Pollicipes pollicipes the peduncle may reach over 10 cm in length and is strongly attached to the substratum despite repeated battering in exposed conditions." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0001442 a rdfs:Class ;
  rdfs:label "brain ventricle" ;
  rdfs:comment "Any of the system of communicating cavities in the brain that are continuous with the central canal of the spinal cord." .

obo:BTO_0004876 a rdfs:Class ;
  rdfs:label "distal tip" ;
  rdfs:comment "The reproductive tract in the hermaphroditic nematode has two equivalent gonad arms. As it grows longer, that portion lying closer to the gonopore (vulva or cloaca) is termed the proximal arm, while the distal arm lies further away with the extreme end named the distal tip." .

obo:BTO_0002260 a rdfs:Class ;
  rdfs:label "HS-68 cell" ;
  rdfs:comment "Hs68 is one of a series of human foreskin fibroblast lines developed at the Naval Biosciences Laboratory (NBL) in Oakland, CA. The material was obtained from an apparently normal Caucasian newborn male in February, 1969." ;
  rdfs:subClassOf obo:BTO_0002245 .

obo:BTO_0003478 a rdfs:Class ;
  rdfs:label "SNU-638 cell" ;
  rdfs:comment "Human gastric cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0004670 a rdfs:Class ;
  rdfs:label "interdigit" ;
  rdfs:comment "The area of the hand or foot lying between adjacent digits." .

obo:BTO_0002131 a rdfs:Class ;
  rdfs:label "SK-MEL-28 cell" ;
  rdfs:comment "Human skin melanoma cell line; established from a 51-years old human male." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0005567 a rdfs:Class ;
  rdfs:label "esophageal adenocarcinoma cell" ;
  rdfs:comment "Adenocarcinoma originates in glandular tissue not normally present in the lining of the esophagus. Before adenocarcinoma can develop, glandular cells must replace a section of squamous cells." ;
  rdfs:subClassOf obo:BTO_0000604 , obo:BTO_0001577 .

obo:BTO_0000474 a rdfs:Class ;
  rdfs:label "allantois" ;
  rdfs:comment "A vascular fetal membrane of reptiles, birds, and mammals that is formed as a pouch from the hindgut and that in placental mammals is intimately associated with the chorion in formation of the placenta." ;
  rdfs:subClassOf obo:BTO_0000473 .

obo:BTO_0003211 a rdfs:Class ;
  rdfs:label "S49.A2 cell" ;
  rdfs:comment "Glucocorticoid sensitive murine T cell lymphoma cell line." .

obo:BTO_0004754 a rdfs:Class ;
  rdfs:label "VERO-76 cell" ;
  rdfs:comment "Monkey (Cercopithecus aethiops) kidney endothelial cell line. It is a derivative of the original VERO." .

obo:BTO_0002204 a rdfs:Class ;
  rdfs:label "palatine uvula" ;
  rdfs:comment "The small cone-shaped process suspended in the mouth from the middle of the posterior border of the soft palate." .

obo:BTO_0001284 a rdfs:Class ;
  rdfs:label "femur" ;
  rdfs:comment "The bone that extends from the pelvis to the knee, being the longest and largest bone in the body; its head articulates with the acetabulum of the hip bone, and distally, the femur, along with the patella and tibia, forms the knee joint." ;
  rdfs:subClassOf obo:BTO_0000140 .

obo:BTO_0002621 a rdfs:Class ;
  rdfs:label "spinal muscle" ;
  rdfs:comment "The medial division of the erector spinae." .

obo:BTO_0000860 a rdfs:Class ;
  rdfs:label "CHRB-30 cell" ;
  rdfs:comment "Multidrug resistant chinese hamster ovary cell line." .

obo:BTO_0000423 a rdfs:Class ;
  rdfs:label "epitrochlearis" ;
  rdfs:comment "Pertaining to muscles associated with the humeral epichondyle." ;
  rdfs:subClassOf obo:BTO_0000479 .

obo:BTO_0003620 a rdfs:Class ;
  rdfs:label "BMMC cell" ;
  rdfs:comment "Bone marrow culture-derived mast cells." ;
  rdfs:subClassOf obo:BTO_0000264 , obo:BTO_0001668 .

obo:BTO_0004620 a rdfs:Class ;
  rdfs:label "OCI-AML3 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line; established from the peripheral blood of a 57-year-old man with acute myeloid leukemia." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0000034 a rdfs:Class ;
  rdfs:label "apical meristem" ;
  rdfs:comment "A group of cells at the tip of the stem and root that give rise by cell division to the primary tissues and are ultimately responsible for the structural organization of the entire primary plant body." ;
  rdfs:subClassOf obo:BTO_0000852 .

obo:BTO_0004898 a rdfs:Class ;
  rdfs:label "HML-Gb3 cell" ;
  rdfs:comment "HeLa cell line stably transfected with pML-Gb3Sp (globotriaosylceramide synthase gene)." .

obo:BTO_0000120 a rdfs:Class ;
  rdfs:label "BHK-21 cell" ;
  rdfs:comment "Syrian hamster kidney BHK-21 is a subclone (clone 13) of the parental line established from the kidneys of five unsexed, one-day-old hamsters in 1961; cells can be used for virus replication studies." ;
  rdfs:subClassOf obo:BTO_0001131 .

obo:BTO_0001957 a rdfs:Class ;
  rdfs:label "MC3T3-E1 cell" ;
  rdfs:comment "Mouse embryo/fetus calvaria fibroblasts; established from the calvaria of an embryo/fetus C57BL/6 mouse; described to differentiate to osteoblasts and to produce collagen." ;
  rdfs:subClassOf obo:BTO_0001958 , obo:BTO_0002052 .

obo:BTO_0004392 a rdfs:Class ;
  rdfs:label "skeletal muscle cell" .

obo:BTO_0004977 a rdfs:Class ;
  rdfs:label "nasal lavage fluid" ;
  rdfs:comment "Fluid obtained by irrigation or washout of the nasal cavity and nasal mucosa." .

obo:BTO_0005775 a rdfs:Class ;
  rdfs:label "KBM-7 cell" ;
  rdfs:comment "Human chronic myeloid leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0002580 .

obo:BTO_0001731 a rdfs:Class ;
  rdfs:label "glucagonoma cell" ;
  rdfs:comment "A type of islet cell tumor cell of the alpha cells that secretes glucagon; some are malignant." ;
  rdfs:subClassOf obo:BTO_0000584 .

obo:BTO_0004548 a rdfs:Class ;
  rdfs:label "deep inguinal lymph node" ;
  rdfs:comment "One of several small inconstant lymph nodes, proximal, intermediate and distal deep to the fascia lata and medial to the femoral vein; they receive lymph from the deep structures of the lower limb, from the glans penis and from superficial inguinal nodes; efferents pass to the external iliac nodes." ;
  rdfs:subClassOf obo:BTO_0000784 .

obo:BTO_0004933 a rdfs:Class ;
  rdfs:label "NALM-17 cell" ;
  rdfs:comment "B-precursor acute lymphoblastic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000603 .

obo:BTO_0004273 a rdfs:Class ;
  rdfs:label "PH-5 cell" ;
  rdfs:comment "Porcine hyalocyte cell line." ;
  rdfs:subClassOf obo:BTO_0004272 .

obo:BTO_0004039 a rdfs:Class ;
  rdfs:label "ML-3B cell" ;
  rdfs:comment "Human gynecologic ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0003805 a rdfs:Class ;
  rdfs:label "alpha-motoneuron" ;
  rdfs:comment "A large, heavily myelinated neuron found in the brainstem and spinal cord, responsible for the contraction of skeletal muscles." ;
  rdfs:subClassOf obo:BTO_0000312 .

obo:BTO_0003161 a rdfs:Class ;
  rdfs:label "PrSMC cell" ;
  rdfs:comment "Normal prostate smooth muscle cell line." ;
  rdfs:subClassOf obo:BTO_0001019 .

obo:BTO_0003660 a rdfs:Class ;
  rdfs:label "laryngeal cartilage" ;
  rdfs:comment "The nine cartilages of the larynx, including the cricoid, thyroid and epiglottic, and two each of arytenoid, corniculate and cuneiform." .

obo:BTO_0000681 a rdfs:Class ;
  rdfs:label "KM-3 cell" ;
  rdfs:comment "Human pre-B lymphocytic leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0003388 a rdfs:Class ;
  rdfs:label "tegmentum" ;
  rdfs:comment "The ventral part of the midbrain." .

obo:BTO_0001465 a rdfs:Class ;
  rdfs:label "pericycle" ;
  rdfs:comment "A thin layer of parenchymatous or sclerenchymatous cells that surrounds the stele in most vascular plants." .

obo:BTO_0003792 a rdfs:Class ;
  rdfs:label "OV-2008 cell" ;
  rdfs:comment "This cell line was established from a patient with serous cystadenocarcinoma of the ovary." ;
  rdfs:subClassOf obo:BTO_0004883 .

obo:BTO_0005693 a rdfs:Class ;
  rdfs:label "lateral nerve cord" ;
  rdfs:comment "A cord of nerve tissue that is formed by union of the superior and middle trunks of the brachial plexus and that forms one of the two roots of the median nerve." ;
  rdfs:subClassOf obo:BTO_0001656 .

obo:BTO_0006170 a rdfs:Class ;
  rdfs:label "nonpigmented ciliary epithelial cell" .

obo:BTO_0005942 a rdfs:Class ;
  rdfs:label "petal nectary" ;
  rdfs:comment "This kind of nectary is formed from part or all of a petal. This type is common in the buttercup family, Ranunculaceae." ;
  rdfs:subClassOf obo:BTO_0000357 .

obo:BTO_0003129 a rdfs:Class ;
  rdfs:label "human brain microvascular endothelial cell" ;
  rdfs:subClassOf obo:BTO_0003128 .

obo:BTO_0003701 a rdfs:Class ;
  rdfs:label "spinal trigeminal tract" ;
  rdfs:comment "Brainstem tract formed by the central processes of first-order, trigeminal ganglion neurons that extends from the caudal medulla to the midpons. This tract conveys nociceptive and thermal information from the face to second-order neurons in the spinal nucleus of the trigeminal complex." .

obo:BTO_0002813 a rdfs:Class ;
  rdfs:label "gubernaculum testis" ;
  rdfs:comment "The fetal ligament attached to the inferior end of the epididymis and testis and, at its other end, to the bottom of the scrotum; it is present during, and is thought to guide, the descent of the testis into the scrotum and then atrophies." .

obo:BTO_0003764 a rdfs:Class ;
  rdfs:label "NCI cell" ;
  rdfs:comment "Human fibrosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0000460 .

obo:BTO_0005551 a rdfs:Class ;
  rdfs:label "abdominal aorta aneurysm disease specific cell type" ;
  rdfs:comment "Abdominal aortic aneurysm is a localized dilatation of the abdominal aorta exceeding the normal diameter by more than 50 percent, and is the most common form of aortic aneurysm. Approximately 90 percent of abdominal aortic aneurysms occur infrarenally, below the kidneys, but they can also occur pararenally, at the level of the kidneys, or suprarenally, above the kidneys." .

obo:BTO_0000333 a rdfs:Class ;
  rdfs:label "renal corpuscle" ;
  rdfs:comment "A mass of arterial capillaries enveloped in a capsule and attached to a tubule in the kidney." .

obo:BTO_0000508 a rdfs:Class ;
  rdfs:label "thorax muscle" ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0005013 a rdfs:Class ;
  rdfs:label "46BRLigI cell" ;
  rdfs:comment "Derivative of DNA ligase I, hLigI-deficient human cell line 46BR1.G1." .

obo:BTO_0005117 a rdfs:Class ;
  rdfs:label "retinal ganglion cell line" .

obo:BTO_0002243 a rdfs:Class ;
  rdfs:label "hypanthium" ;
  rdfs:comment "The ringlike, cup-shaped, or tubular structure of a flower on which the sepals, petals, and stamens are borne, as in the flowers of the rose or cherry." .

obo:BTO_0000160 a rdfs:Class ;
  rdfs:label "bundle sheath" ;
  rdfs:comment "Sheath of parenchyma or sclerenchyma cells surrounding the vascular bundles in leaves." .

obo:BTO_0001020 a rdfs:Class ;
  rdfs:label "periodontal ligament" ;
  rdfs:comment "The fibrous connective tissue that surrounds the root of a tooth, separating it from and attaching it to the alveolar bone. It extends from the base of the gingival mucosa to the fundus of the bony socket, and its main function is to hold the tooth in its socket." .

obo:BTO_0000064 a rdfs:Class ;
  rdfs:label "amniochorion" ;
  rdfs:comment "Pertaining to the amnion and chorion." ;
  rdfs:subClassOf obo:BTO_0000473 .

obo:BTO_0000738 a rdfs:Class ;
  rdfs:label "HL-60 cell" ;
  rdfs:comment "Human acute myeloid leukemia established from the peripheral blood of a 35-year-old woman with acute myeloid leukemia (AML FAB M2) in 1976." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0001212 a rdfs:Class ;
  rdfs:label "Rous sarcoma cell" ;
  rdfs:comment "A cell type of avian sarcoma transmitted by a retrovirus; it metastasizes freely and is sometimes highly lethal. Experimental inoculation into other fowls produces similar growths. This was the first sarcoma known to be caused by a virus." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0002402 a rdfs:Class ;
  rdfs:label "oviduct epithelium" ;
  rdfs:comment "There are two types of cells within the simple columnar epithelium of the Fallopian tube. Ciliated cells predominate throughout the tube, but are most numerous in the infundibulum and ampulla. Interspersed between the ciliated cells are peg cells, which contain apical granules and produce the tubular fluid. This fluid contains nutrients for spermatozoa, oocytes and zygotes." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0001544 a rdfs:Class ;
  rdfs:label "chronic myeloid leukemia cell" ;
  rdfs:comment "Neoplasia of myeloid stem cells, commonest in middle-aged or elderly people, characterized by excessive numbers of circulating leucocytes, most commonly neutrophils (or precursors), but occasionally eosinophils or basophils." ;
  rdfs:subClassOf obo:BTO_0001056 .

obo:BTO_0003392 a rdfs:Class ;
  rdfs:label "medial nidopallium" .

obo:BTO_0005646 a rdfs:Class ;
  rdfs:label "culture condition:D-mannitol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002682 a rdfs:Class ;
  rdfs:label "inferior vena cava" ;
  rdfs:comment "The venous trunk for the lower extremities and for the pelvic and abdominal viscera; it begins at the level of the fifth lumbar vertebra by union of the common iliac veins, passes upward on the right of the aorta, and empties into the right atrium of the heart." ;
  rdfs:subClassOf obo:BTO_0001438 .

obo:BTO_0003836 a rdfs:Class ;
  rdfs:label "nucleus dentatus" ;
  rdfs:subClassOf obo:BTO_0003835 .

obo:BTO_0002457 a rdfs:Class ;
  rdfs:label "nucleus parataenialis" ;
  rdfs:comment "One of the median nuclei of the thalamus, situated ventral and medial to the stria medullaris." ;
  rdfs:subClassOf obo:BTO_0002454 .

obo:BTO_0004807 a rdfs:Class ;
  rdfs:label "CHO-91-22-47-67 cell" ;
  rdfs:comment "CHO-K1 cells were stably transfected with one or more plasmids for expression of gp91phox, p22phox, p47phox, and p67phox." .

obo:BTO_0003943 a rdfs:Class ;
  rdfs:label "SKOV cell" ;
  rdfs:comment "Ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0004537 a rdfs:Class ;
  rdfs:label "cortical collecting duct cell" ;
  rdfs:comment "The cortical collecting ducts receive filtrate from multiple initial collecting tubules and descend into the renal medulla to form medullary collecting ducts." .

obo:BTO_0004330 a rdfs:Class ;
  rdfs:label "UW228-1 cell" ;
  rdfs:comment "Human medulloblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001359 .

obo:BTO_0000287 a rdfs:Class ;
  rdfs:label "corneal epithelium" ;
  rdfs:comment "Posterior epithelium of cornea: the mesothelial layer covering the posterior surface of the posterior limiting lamina of the cornea; it was once believed to extend to the anterior surface of the stroma of the iris." .

obo:BTO_0002319 a rdfs:Class ;
  rdfs:label "skeletal muscle fiber" ;
  rdfs:comment "Skeletal muscle fibers are cylindrical multinucleate cells containing contracting myofibrils, across which run transverse striations, enclosed in a sarcolemma." ;
  rdfs:subClassOf obo:BTO_0000888 .

obo:BTO_0003221 a rdfs:Class ;
  rdfs:label "corneal cell line" .

obo:BTO_0002271 a rdfs:Class ;
  rdfs:label "MCS-2 cell" ;
  rdfs:comment "The MCS-2 cell line is established by introduction of the human steroid-sulfatase (STS) gene into estrogen-dependent human breast cancer MCF-7 cells." ;
  rdfs:subClassOf obo:BTO_0000093 .

obo:BTO_0000627 a rdfs:Class ;
  rdfs:label "HIT-T15 cell" ;
  rdfs:comment "Pancreatic beta cell line." ;
  rdfs:subClassOf obo:BTO_0000183 , obo:BTO_0000716 .

obo:BTO_0003269 a rdfs:Class ;
  rdfs:label "feather barbicels" ;
  rdfs:comment "Tiny hooks that interlock to hold the barbules together." .

obo:BTO_0006224 a rdfs:Class ;
  rdfs:label "OP-6 cell" ;
  rdfs:comment "Mouse olfactory placode cell line." ;
  rdfs:subClassOf obo:BTO_0006225 .

obo:BTO_0004457 a rdfs:Class ;
  rdfs:label "LN-308 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0004140 a rdfs:Class ;
  rdfs:label "ethmoid bone" ;
  rdfs:comment "An irregularly shaped, spongy bone that provides the floor of the front part of the skull and the roof of the nose. The ethmoid bone consists of two masses of thin plates enclosing air cells and looks like a sieve." .

obo:BTO_0003514 a rdfs:Class ;
  rdfs:label "HSC-180 cell" ;
  rdfs:comment "Immortalized human hepatic stellate cell line." ;
  rdfs:subClassOf obo:BTO_0003513 .

obo:BTO_0005925 a rdfs:Class ;
  rdfs:label "SNU-899 cell" ;
  rdfs:comment "Human laryngeal squamous cell carcinoma cell line; established from Korean patients." ;
  rdfs:subClassOf obo:BTO_0005921 .

obo:BTO_0004469 a rdfs:Class ;
  rdfs:label "HCCLM-3 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." .

obo:BTO_0001436 a rdfs:Class ;
  rdfs:label "mycelium" ;
  rdfs:comment "1: The vegetative part of a fungus, consisting of a mass of branching, threadlike hyphae. 2: A similar mass of fibers formed by certain bacteria." ;
  rdfs:subClassOf obo:BTO_0001434 .

obo:BTO_0006095 a rdfs:Class ;
  rdfs:label "LNCaP clone FGC" ;
  rdfs:comment "Human prostate cancer cell line; established from a 50 years old caucasian male; derived from metastatic site: left supraclavicular lymph node." .

obo:BTO_0000838 a rdfs:Class ;
  rdfs:label "meconium" ;
  rdfs:comment "A dark greenish mass that accumulates in the bowel during fetal life and is discharged shortly after birth." .

obo:BTO_0002405 a rdfs:Class ;
  rdfs:label "EoL-1 cell" ;
  rdfs:comment "Human eosinophilic leukaemia cell line." ;
  rdfs:subClassOf obo:BTO_0002406 .

obo:BTO_0005024 a rdfs:Class ;
  rdfs:label "gastrointestinal smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0002974 a rdfs:Class ;
  rdfs:label "HEK-293-EBNA cell" ;
  rdfs:comment "Human embryonic kidney cell line, expressing EBNA." .

obo:BTO_0002001 a rdfs:Class ;
  rdfs:label "CCP-8 cell" ;
  rdfs:comment "Tartrate-resistant acid phosphatase (TRAP) and alkaline phosphatase (ALP) double-positive cell lines (CCP-2, CCP-7, CCP-8) from hamster bone marrow." ;
  rdfs:subClassOf obo:BTO_0000264 .

obo:BTO_0005667 a rdfs:Class ;
  rdfs:label "NCI-H889 cell" ;
  rdfs:comment "Human small cell lung cancer cell line, established from a 69 years old caucasian female, derived from the lymph node, stage E carcinoma." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0001073 a rdfs:Class ;
  rdfs:label "hypophysis" ;
  rdfs:comment "A small oval endocrine organ that is attached to the infundibulum of the brain, consists of an epithelial anterior lobe joined by an intermediate part to a posterior lobe of nervous origin, and produces various internal secretions directly or indirectly impinging on most basic body functions." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0003958 a rdfs:Class ;
  rdfs:label "Neuro2A-Luc cell" ;
  rdfs:comment "Luciferase expressing Neuro2A cell line." .

obo:BTO_0000917 a rdfs:Class ;
  rdfs:label "needle" ;
  rdfs:comment "A needle-shaped leaf (as of a conifer)." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0000131 a rdfs:Class ;
  rdfs:label "blood plasma" ;
  rdfs:comment "The fluid portion of the blood in which the particulate components are suspended." .

obo:BTO_0000936 a rdfs:Class ;
  rdfs:label "neurofibrillary tangle" ;
  rdfs:comment "Intracellular knot or clump of neurofibrils seen in the cerebral cortex in Alzheimer's disease." ;
  rdfs:subClassOf obo:BTO_0000590 .

obo:BTO_0003421 a rdfs:Class ;
  rdfs:label "ACH-3P cell" ;
  rdfs:comment "We established a first trimester trophoblast cell line (ACH-3P) by fusion of primary human first trimester trophoblasts (week 12 of gestation) with a human choriocarcinoma cell line (AC1-1)." ;
  rdfs:subClassOf obo:BTO_0003420 .

obo:BTO_0004060 a rdfs:Class ;
  rdfs:label "fibroblast-like synoviocyte" ;
  rdfs:comment "Human synoviocytes (HS), the predominant cell type of healthy synovial tissue, are fibroblast-like cells." ;
  rdfs:subClassOf obo:BTO_0003742 .

obo:BTO_0005599 a rdfs:Class ;
  rdfs:label "periodontal ligament cell" ;
  rdfs:comment "Periodontal ligament cells are believed to play an important role in periodontal regeneration. That is, they may differentiate into specific cells which make cementum, bone, and attachment apparatus." .

obo:BTO_0002491 a rdfs:Class ;
  rdfs:label "culture condition:4-hydroxyphenylacetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001555 a rdfs:Class ;
  rdfs:label "endometrial cancer cell line" ;
  rdfs:subClassOf obo:BTO_0001996 .

obo:BTO_0005075 a rdfs:Class ;
  rdfs:label "NT2-Rho0 cell" ;
  rdfs:comment "NT2 human teratocarcinoma rho0 cell line; rho cell lines are depleted of endogenous mtDNA." .

obo:BTO_0005496 a rdfs:Class ;
  rdfs:label "NHEM-neo cell" ;
  rdfs:comment "Normal melanocyte cell line." ;
  rdfs:subClassOf obo:BTO_0003183 .

obo:BTO_0001837 a rdfs:Class ;
  rdfs:label "serous gland" ;
  rdfs:comment "An exocrine gland that produces a watery, protein rich secretion, as opposed to a carbohydrate rich mucous secretion." ;
  rdfs:subClassOf obo:BTO_0000765 .

obo:BTO_0001115 a rdfs:Class ;
  rdfs:label "primary spermatocyte" ;
  rdfs:comment "A cell derived from a spermatogonium and dividing into two secondary spermatocytes; called also spermiocyte." ;
  rdfs:subClassOf obo:BTO_0001275 .

obo:BTO_0001984 a rdfs:Class ;
  rdfs:label "culture condition:beta-L-alanine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001241 a rdfs:Class ;
  rdfs:label "shell gland" ;
  rdfs:comment "1: A glandular organ in which the rudimentary shell is formed in embryonic mollusks. 2: A glandular organ which secretes the eggshells of various worms, crustacea, mollusks, etc." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0000322 a rdfs:Class ;
  rdfs:label "cytotrophoblast" ;
  rdfs:comment "The cellular (inner) layer of the trophoblast." .

obo:BTO_0005349 a rdfs:Class ;
  rdfs:label "UKRV-Mel-27 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0004925 a rdfs:Class ;
  rdfs:label "HRA cell" ;
  rdfs:comment "Human ovarian carcinoma cell line; derived from serous cystadenocarcinoma." ;
  rdfs:subClassOf obo:BTO_0001882 , obo:BTO_0003804 , obo:BTO_0004883 .

obo:BTO_0004117 a rdfs:Class ;
  rdfs:label "HFK cell" ;
  rdfs:comment "Human fetal kidney primary culture." ;
  rdfs:subClassOf obo:BTO_0001413 .

obo:BTO_0001289 a rdfs:Class ;
  rdfs:label "squamous cell carcinoma cell" ;
  rdfs:comment "Carcinoma developed from squamous epithelium, having cuboid cells and characterized by keratinization and often by preservation of intercellular bridges. Initially local and superficial, the lesion may later invade and metastasize." .

obo:BTO_0006471 a rdfs:Class ;
  rdfs:label "MIHA cell" ;
  rdfs:comment "Normal immortalized human hepatocyte cell line." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0002771 a rdfs:Class ;
  rdfs:label "olfactory ensheathing cell" ;
  rdfs:comment "These cells are a specialized type of glial cells found in association with olfactory receptor neurons. They show features of astrocytes and Schwann cells. These cells support the growth of primary olfactory axons from the neuroepithelium in the nasal cavity to the brain." ;
  rdfs:subClassOf obo:BTO_0002606 .

obo:BTO_0003547 a rdfs:Class ;
  rdfs:label "KP-N-SI cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000843 a rdfs:Class ;
  rdfs:label "megakaryocyte" ;
  rdfs:comment "A large cell that has a lobulated nucleus, is found especially in the bone marrow, and is the source of blood platelets." ;
  rdfs:subClassOf obo:BTO_0001441 .

obo:BTO_0000430 a rdfs:Class ;
  rdfs:label "EUE cell" ;
  rdfs:comment "Human embryonic epithelial cell line." .

obo:BTO_0001916 a rdfs:Class ;
  rdfs:label "LIM1215 cell" ;
  rdfs:comment "Colonic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002095 a rdfs:Class ;
  rdfs:label "nasal glioma cell" ;
  rdfs:comment "A tumor-like mass composed of ectopic neural tissue in the nasal cavity." ;
  rdfs:subClassOf obo:BTO_0000526 .

obo:BTO_0003468 a rdfs:Class ;
  rdfs:label "HEK-293B2 cell" ;
  rdfs:comment "Human embryonic kidney cells stably overexpressing the FLAG-tagged b2AR-GFP." .

obo:BTO_0001067 a rdfs:Class ;
  rdfs:label "pineal gland" ;
  rdfs:comment "A small, cone-shaped organ in the brain of most vertebrates that secretes the hormone melatonin." ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0005732 a rdfs:Class ;
  rdfs:label "culture condition:gentisate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000298 a rdfs:Class ;
  rdfs:label "COS-7 cell" ;
  rdfs:comment "African green monkey kidney derived from CV-1, a simian cell line (cercopithecus aethiops), by transformation with an origin-defective mutant of SV-40; cells were described to support the growth of SV-40 viruses." ;
  rdfs:subClassOf obo:BTO_0004055 .

obo:BTO_0006116 a rdfs:Class ;
  rdfs:label "microsclerotium" ;
  rdfs:comment "A very small sclerotium." ;
  rdfs:subClassOf obo:BTO_0001810 .

obo:BTO_0004329 a rdfs:Class ;
  rdfs:label "Madsen cell" ;
  rdfs:comment "Human medulloblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001359 .

obo:BTO_0003820 a rdfs:Class ;
  rdfs:label "culture condition:glucose/acetate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000477 a rdfs:Class ;
  rdfs:label "foot muscle" ;
  rdfs:subClassOf obo:BTO_0000722 .

obo:BTO_0005220 a rdfs:Class ;
  rdfs:label "PC-3M cell" ;
  rdfs:comment "Human prostate cancer cell line." .

obo:BTO_0000171 a rdfs:Class ;
  rdfs:label "NCI-H226Br cell" ;
  rdfs:comment "The H226Br cell line is a variant of the NCI-H226 cell line derived from a brain metastasis in a nu/nu mouse." .

obo:BTO_0001587 a rdfs:Class ;
  rdfs:label "MEL-HO cell" ;
  rdfs:comment "Human melanoma; established from the primary tumor of a woman with melanoma in 1976; cells express mRNA of the oncogene c-myc." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000957 a rdfs:Class ;
  rdfs:label "nape" ;
  rdfs:comment "The back of the neck." .

obo:BTO_0001869 a rdfs:Class ;
  rdfs:label "olfactory tubercle" ;
  rdfs:comment "A small area of gray matter behind the olfactory trigone that is noted for receiving dopaminergic neurons from the substantia nigra and the reticular formation which have been implicated in schizoaffective disorders." .

obo:BTO_0000116 a rdfs:Class ;
  rdfs:label "plant epidermis" ;
  rdfs:comment "A thin surface layer of tissue in higher plants formed by growth of a primary meristem." .

obo:BTO_0003918 a rdfs:Class ;
  rdfs:label "KB-3-1 cell" ;
  rdfs:comment "Human cervix carcinoma cell line from the parental continuous cell line HELA, used in multiple drug resistance studies giving raise to drug-resistant mutants, e.g. KB-V1 resistant to vinblastine; KB-CH[R]-8-5 resistant to colchicine." .

obo:BTO_0006442 a rdfs:Class ;
  rdfs:label "HCC-1833 cell" ;
  rdfs:comment "Human lung adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0004446 a rdfs:Class ;
  rdfs:label "S9 cell" ;
  rdfs:comment "The S9 cell line and the C38 cell line were derived from the IB3-1 cell line." .

obo:BTO_0001995 a rdfs:Class ;
  rdfs:label "myocytoma cell" ;
  rdfs:comment "A benign neoplasm derived from muscle." .

obo:BTO_0005656 a rdfs:Class ;
  rdfs:label "Z-12 cell" ;
  rdfs:comment "Endometriotic epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0001996 .

obo:BTO_0005966 a rdfs:Class ;
  rdfs:label "NCI-H1688 cell" ;
  rdfs:comment "Human classic small cell lung cancer cell line; established from a 50 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0002539 a rdfs:Class ;
  rdfs:label "culture condition:styrene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001876 a rdfs:Class ;
  rdfs:label "thyroid cell line" .

obo:BTO_0001949 a rdfs:Class ;
  rdfs:label "HUVEC cell" ;
  rdfs:comment "A convenient source of human endothelial cells are those that line the large vein in the umbilical cord which is usually discarded together with the placenta after childbirth. The cells can be removed as a fairly pure suspension by mild enzymatic treatment of the vein followed by some mechanical distraction and will grow relatively easily in culture, retaining their differentiated characteristics for several passages." ;
  rdfs:subClassOf obo:BTO_0001520 .

obo:BTO_0001812 a rdfs:Class ;
  rdfs:label "slow twitch muscle fiber" ;
  rdfs:comment "Small dark muscle fibers rich in mitochondria, myoglobin, and sarcoplasm and with only faint cross-striping; designed for slow but repetitive contractions over long periods of time." ;
  rdfs:subClassOf obo:BTO_0002319 .

obo:BTO_0003691 a rdfs:Class ;
  rdfs:label "malignant mixed Muellerian tumor cell" ;
  rdfs:comment "A rare type of tumor that is a mixture of carcinoma and sarcoma cells. It usually occurs in the uterus." ;
  rdfs:subClassOf obo:BTO_0000658 , obo:BTO_0003596 .

obo:BTO_0006181 a rdfs:Class ;
  rdfs:label "buffy coat" ;
  rdfs:comment "The buffy coat is the fraction of an anticoagulated blood sample that contains most of the white blood cells and platelets following density gradient centrifugation of the blood." ;
  rdfs:subClassOf obo:BTO_0001490 .

obo:BTO_0001649 a rdfs:Class ;
  rdfs:label "longissimus capitis" ;
  rdfs:comment "A long slender muscle between the longissimus cervicis and the semispinalis capitis that arises by tendons from the upper thoracic and lower cervical vertebrae, is inserted into the posterior margin of the mastoid process, and extends the head and bends and rotates it to one side." .

obo:BTO_0002431 a rdfs:Class ;
  rdfs:label "HuO-3N1 cell" ;
  rdfs:comment "Human osteosarcoma cell line. Osteoblastic cell line." ;
  rdfs:subClassOf obo:BTO_0000407 .

obo:BTO_0005814 a rdfs:Class ;
  rdfs:label "BEL-7404 cell" ;
  rdfs:comment "Hepatocellular carcinoma cell line." .

obo:BTO_0003561 a rdfs:Class ;
  rdfs:label "MG1.19 cell" ;
  rdfs:comment "A CCE ES cell line." ;
  rdfs:subClassOf obo:BTO_0003560 .

obo:BTO_0000542 a rdfs:Class ;
  rdfs:label "granulosa cell" ;
  rdfs:comment "One of the estrogen-secreting cells of the epithelial lining of a graafian follicle or its follicular precursor." .

obo:BTO_0005439 a rdfs:Class ;
  rdfs:label "Lu-134-B cell" ;
  rdfs:comment "Human small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0004364 a rdfs:Class ;
  rdfs:label "gastroesophageal junction" ;
  rdfs:comment "The junction between the stomach and the esophagus; the place where the esophagus connects to the stomach." .

obo:BTO_0003349 a rdfs:Class ;
  rdfs:label "microglial cell line" .

obo:BTO_0003308 a rdfs:Class ;
  rdfs:label "L-363 cell" ;
  rdfs:comment "Multiple myeloma cell line expressing syndecan-1." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0000914 a rdfs:Class ;
  rdfs:label "natural killer cell" ;
  rdfs:comment "A large granular lymphocyte capable of killing a tumor or microbial cell without prior exposure to the target cell and without having it presented with or marked by a histocompatibility antigen." ;
  rdfs:subClassOf obo:BTO_0004716 , obo:BTO_0004717 .

obo:BTO_0006557 a rdfs:Class ;
  rdfs:label "SKOV3IP cell" ;
  rdfs:comment "Human epithelial ovarian cancer cell line." .

obo:BTO_0004749 a rdfs:Class ;
  rdfs:label "phialide" ;
  rdfs:comment "A specialized conidiogenous cell that produces conidia in basipetal succession without increasing in length." .

obo:BTO_0006486 a rdfs:Class ;
  rdfs:label "myxofibrosarcoma cell" ;
  rdfs:comment "A malignant fibrous histiocytoma with a predominance of myxoid areas that resemble primitive mesenchymal tissue." ;
  rdfs:subClassOf obo:BTO_0003431 .

obo:BTO_0005874 a rdfs:Class ;
  rdfs:label "NOY-1 cell" ;
  rdfs:comment "Human ovarian yolk sac tumor cell line." ;
  rdfs:subClassOf obo:BTO_0005873 .

obo:BTO_0003489 a rdfs:Class ;
  rdfs:label "vibrissal follicle" ;
  rdfs:subClassOf obo:BTO_0000554 .

obo:BTO_0004590 a rdfs:Class ;
  rdfs:label "nasal epithelium cell line" .

obo:BTO_0005747 a rdfs:Class ;
  rdfs:label "IGR-37 cell" ;
  rdfs:comment "Human melanoma cell line, established from the lymph node metastasis (groin) of a 26-year-old man with malignant melanoma." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001179 a rdfs:Class ;
  rdfs:label "rhizophore" ;
  rdfs:comment "A leafless stem that produces roots." ;
  rdfs:subClassOf obo:BTO_0001300 .

obo:BTO_0003088 a rdfs:Class ;
  rdfs:label "subiculum promontorii" ;
  rdfs:comment "Support of the promontory; a bony ridge bounding the fossula fenestrae cochleae posteriorly. Subiculum of promontory of tympanic cavity: a ridge of bone bounding the tympanic sinus inferiorly." .

obo:BTO_0000036 a rdfs:Class ;
  rdfs:label "gastric adenocarcinoma cell" ;
  rdfs:comment "A cell of any of a group of common stomach cancers, usually located in the antrum; it may present as a bulky mass with central ulceration invading the wall, a mass that narrows the antral lumen, a polypoid lesion, or a tumor that spreads superficially over the mucosal surface. It is common in Japan, Chile, Iceland, and Finland but the incidence is decreasing in North America and elsewhere. There may be links to certain dietary substances such as nitrosamines and benzpyrene." ;
  rdfs:subClassOf obo:BTO_0000498 , obo:BTO_0000604 .

obo:BTO_0004093 a rdfs:Class ;
  rdfs:label "endothelial progenitor cell" ;
  rdfs:comment "A controversial and hypothetical population of rare cells believed to circulate in the blood with the ability to differentiate into endothelial cells, the cells that make up the lining of blood vessels." ;
  rdfs:subClassOf obo:BTO_0004092 .

obo:BTO_0006068 a rdfs:Class ;
  rdfs:label "culture condition:lactate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004689 a rdfs:Class ;
  rdfs:label "external gill" ;
  rdfs:comment "External gills are the gills of an animal, most typically an amphibian, that are exposed to the environment, rather than set inside the pharynx and covered by gill slits, as they are in most fishes." ;
  rdfs:subClassOf obo:BTO_0000518 .

obo:BTO_0001603 a rdfs:Class ;
  rdfs:label "endocuticle" ;
  rdfs:comment "The inner layer of the procuticle in certain crustaceans and arthropods, which is almost entirely composed of protein and chitin." .

obo:BTO_0003572 a rdfs:Class ;
  rdfs:label "HL60/ADR cell" ;
  rdfs:comment "Acute promyelocytic leukemia resistant to Adriamycin." .

obo:BTO_0001501 a rdfs:Class ;
  rdfs:label "hair" ;
  rdfs:comment "1: A slender threadlike outgrowth of the epidermis of an animal; especially: one of the usually pigmented filaments that form the characteristic coat of a mammal. 2: The hairy covering of an animal or a body part; especially: the coating of hairs on a human head." .

obo:BTO_0006386 a rdfs:Class ;
  rdfs:label "SW-982 cell" ;
  rdfs:comment "Human synovial sarcoma cell line; established from a 25 years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0006384 .

obo:BTO_0002043 a rdfs:Class ;
  rdfs:label "ECV-304 cell" ;
  rdfs:comment "Human urinary bladder carcinoma (derivative of T-24); described as being spontaneously immortalized from the umbilical cord vein of a new-born Japanese boy in 1984; cells were described to have a high proliferative potential in the absence of any growth factors; however, DNA fingerprinting at DSMZ showed clearly that this cell line is in reality a derivative of human urinary bladder carcinoma cell line T-24." ;
  rdfs:subClassOf obo:BTO_0001209 .

obo:BTO_0005786 a rdfs:Class ;
  rdfs:label "SNU-1 cell" ;
  rdfs:comment "Human gastric carcinoma cell line, established from a 44 years old asian male." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0000004 a rdfs:Class ;
  rdfs:label "culture condition:2,5-dihydroxybenzoate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005826 a rdfs:Class ;
  rdfs:label "Detroit-551 cell" ;
  rdfs:comment "Normal human skin fibroblast cell line; established from a fetus of a Caucasian female." ;
  rdfs:subClassOf obo:BTO_0001619 .

obo:BTO_0001576 a rdfs:Class ;
  rdfs:label "choriocarcinoma cell" ;
  rdfs:comment "A cell of an epithelial malignancy of trophoblastic cells, formed by the abnormal proliferation of cuboidal and syncytial cells of the placental epithelium, without the production of chorionic villi. Almost all cases arise in the uterus, developing from hydatidiform mole, following abortion, or during normal pregnancy. The remainder occur in ectopic pregnancies and genital (ovarian and testicular) and extragenital teratomas." .

obo:BTO_0006127 a rdfs:Class ;
  rdfs:label "adventitious root primordium" ;
  rdfs:comment "Primordium of an adventitious root." ;
  rdfs:subClassOf obo:BTO_0004791 .

obo:BTO_0002989 a rdfs:Class ;
  rdfs:label "CHP-134 cell" ;
  rdfs:comment "A neuroblastoma cell line established from a tumour of the left adrenal area of an 18-month-old male patient." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0001397 a rdfs:Class ;
  rdfs:label "trophozoite" ;
  rdfs:comment "A protozoan, especially of the class Sporozoa, in the active stage of its life cycle." ;
  rdfs:subClassOf obo:BTO_0000749 .

obo:BTO_0002760 a rdfs:Class ;
  rdfs:label "PC6-8 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0004550 a rdfs:Class ;
  rdfs:label "proximal deep inguinal lymph node" ;
  rdfs:comment "One of the deep inguinal lymph nodes located in or adjacent to the femoral canal; sometimes mistaken for a femoral hernia when enlarged." ;
  rdfs:subClassOf obo:BTO_0004548 .

obo:BTO_0001092 a rdfs:Class ;
  rdfs:label "KATO-III cell" ;
  rdfs:comment "Human stomach carcinoma cell line, established from a 55 years old mongoloid male." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0001909 a rdfs:Class ;
  rdfs:label "N1E-115 cell" ;
  rdfs:comment "Mus musculus (mouse) brain; neuroblast; neuroblastoma cell line. The N1E-115 cell line was established in 1971 by T. Amano, E. Richelson, and M. Nirenberg by cloning the C-1300 spontaneous mouse neuroblastoma tumor, C-1300." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000720 a rdfs:Class ;
  rdfs:label "plant form" ;
  rdfs:subClassOf obo:BTO_0001461 .

obo:BTO_0005866 a rdfs:Class ;
  rdfs:label "MDA435/LCC6 cell" ;
  rdfs:comment "An ascites model of human breast cancer. The MDA435/LCC6 ascites were derived from the oestrogen receptor (ER)-negative, invasive and metastatic MDA-MB-435 cell line." .

obo:BTO_0003001 a rdfs:Class ;
  rdfs:label "EBC-1 cell" ;
  rdfs:comment "Human lung squamous cell carcinoma cell line; established from a 68 year old male." ;
  rdfs:subClassOf obo:BTO_0002202 .

obo:BTO_0003648 a rdfs:Class ;
  rdfs:label "olfactory nerve" ;
  rdfs:comment "Collective term denoting the numerous olfactory filaments: slender fascicles each composed of the thin, unmyelinated axons of 8 to 12 of the bipolar olfactory receptor cells in the olfactory portion of the nasal mucosa; the olfactory filaments pass through the cribriform plate of the ethmoid bone and enter the olfactory bulb, where they terminate in synaptic contact with mitral cells, tufted cells, and granule cells." ;
  rdfs:subClassOf obo:BTO_0001104 .

obo:BTO_0005191 a rdfs:Class ;
  rdfs:label "Patu-8988 cell" ;
  rdfs:comment "Human pancreatic cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0001550 a rdfs:Class ;
  rdfs:label "Dami cell" ;
  rdfs:comment "Human megakaryocytic cell line." .

obo:BTO_0005280 a rdfs:Class ;
  rdfs:label "culture condition:oxalate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003659 a rdfs:Class ;
  rdfs:label "secretory cell" ;
  rdfs:comment "Cell specialised for secretion, usually epithelial. Those that secrete proteins characteristically have well developed rough endoplasmic reticulum, whereas conspicuous smooth endoplasmic reticulum is typical of cells that secrete lipid or lipid derived products (e.g. Steroids)." ;
  rdfs:subClassOf obo:BTO_0000522 .

obo:BTO_0000939 a rdfs:Class ;
  rdfs:label "basal cell" ;
  rdfs:comment "One of the innermost cells of the deeper epidermis of the skin." ;
  rdfs:subClassOf obo:BTO_0001470 .

obo:BTO_0005327 a rdfs:Class ;
  rdfs:label "culture condition:malate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005577 a rdfs:Class ;
  rdfs:label "lung disease specific cell type" .

obo:BTO_0002646 a rdfs:Class ;
  rdfs:label "CCD-25Lu cell" ;
  rdfs:comment "Human normal lung fibroblast cell line established from a caucasian 7-years-old human male. The line was established from the lung of a patient who died of glioma of the brain stem." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0001533 a rdfs:Class ;
  rdfs:label "gastrointestinal cancer cell" .

obo:BTO_0001267 a rdfs:Class ;
  rdfs:label "BmN cell" ;
  rdfs:comment "Silkworm, Bombyx mori, cell line derived from ovary." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0001078 a rdfs:Class ;
  rdfs:label "placenta" ;
  rdfs:comment "The vascular organ in mammals except monotremes and marsupials that unites the fetus to the maternal uterus and mediates its metabolic exchanges through a more or less intimate association of uterine mucosal with chorionic and usually allantoic tissues; also: an analogous organ in another animal." ;
  rdfs:subClassOf obo:BTO_0003099 .

<https://w3id.org/linkml/Any> a rdfs:Class ;
  rdfs:comment "An unconstrained type or object" .

obo:BTO_0000821 a rdfs:Class ;
  rdfs:label "nipple" ;
  rdfs:comment "The protuberance of a mammary gland upon which in the female the lactiferous ducts open and from which milk is drawn." .

obo:BTO_0004063 a rdfs:Class ;
  rdfs:label "chloragogen cell" ;
  rdfs:comment "Yellowish-brown or greenish cells that surround the intestine of annelids that function in intermediary metabolism, similar to the role of the liver in vertebrates." ;
  rdfs:subClassOf obo:BTO_0000759 .

obo:BTO_0005679 a rdfs:Class ;
  rdfs:label "small luteal cell" ;
  rdfs:comment "Small luteal cells are derived from follicular theca cells." ;
  rdfs:subClassOf obo:BTO_0003939 .

obo:BTO_0006073 a rdfs:Class ;
  rdfs:label "tongue epithelial cell" .

obo:BTO_0006383 a rdfs:Class ;
  rdfs:label "CHLA-90 cell" ;
  rdfs:comment "Human neuroblastoma cell line, established in 1990 from a 104months old child post chemotherapy." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0002928 a rdfs:Class ;
  rdfs:label "adult stem cell line" .

obo:BTO_0001946 a rdfs:Class ;
  rdfs:label "myofibroblast" ;
  rdfs:comment "An atypical fibroblast combining the ultrastructural features of a fibroblast and a smooth muscle cell; it has a highly irregular nucleus, a large amount of rough endoplasmic reticulum, and a dense collection of myofilaments." ;
  rdfs:subClassOf obo:BTO_0000452 .

obo:BTO_0001331 a rdfs:Class ;
  rdfs:label "sweat gland" ;
  rdfs:comment "A simple tubular gland of the skin that secretes perspiration, is widely distributed in nearly all parts of the human skin, and consists typically of an epithelial tube extending spirally from a minute pore on the surface of the skin into the dermis or subcutaneous tissues where it ends in a convoluted tuft." ;
  rdfs:subClassOf obo:BTO_0000431 , obo:BTO_0000765 .

obo:BTO_0001409 a rdfs:Class ;
  rdfs:label "ureter" ;
  rdfs:comment "The tube that carries urine from the kidney to the bladder." .

obo:BTO_0003630 a rdfs:Class ;
  rdfs:label "CT-26 cell" ;
  rdfs:comment "Murine colon carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000797 .

obo:BTO_0002903 a rdfs:Class ;
  rdfs:label "NC14.4.6E cell" ;
  rdfs:comment "Murine neural crest-derived cell line generated from infection of mouse neural crest cultures with retroviruses containing the c-myc or the N-myc proto-oncogenes." ;
  rdfs:subClassOf obo:BTO_0002901 .

obo:BTO_0002996 a rdfs:Class ;
  rdfs:label "cavernous artery" ;
  rdfs:comment "Any of several small branches of the internal carotid artery that supply the trigeminal ganglion and the walls of the cavernous and petrosal sinuses." .

obo:BTO_0002793 a rdfs:Class ;
  rdfs:label "culture condition:glucose/ammonium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001684 a rdfs:Class ;
  rdfs:label "antler" ;
  rdfs:comment "One of the paired deciduous solid bone processes that arise from the frontal bone on the head of an animal of the deer family; also : a branch of an antler." .

obo:BTO_0000979 a rdfs:Class ;
  rdfs:label "PANC-3 cell" ;
  rdfs:comment "Human pancreas carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0006013 a rdfs:Class ;
  rdfs:label "anterior horn cell" ;
  rdfs:comment "Motor neuron in the anterior horn." ;
  rdfs:subClassOf obo:BTO_0000312 .

obo:BTO_0005898 a rdfs:Class ;
  rdfs:label "UACC-502 cell" ;
  rdfs:comment "Metastatic patient-derived human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0005877 a rdfs:Class ;
  rdfs:label "papillary adenocarcinoma cell" ;
  rdfs:comment "An adenocarcinoma containing fingerlike processes of vascular connective tissue covered by neoplastic epithelium, projecting into cysts or the cavity of glands or follicles; occurs most frequently in the ovary and thyroid gland." ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0000105 a rdfs:Class ;
  rdfs:label "upper epidermis" ;
  rdfs:comment "The epidermal layer directed towards the axis." ;
  rdfs:subClassOf obo:BTO_0000718 .

obo:BTO_0000806 a rdfs:Class ;
  rdfs:label "IC-21 cell" ;
  rdfs:comment "Mouse peritoneal macrophage, SV40 transformed. The IC-21 cell line was derived by transformation of normal C57BL/6 mouse peritoneal macrophages with SV40." ;
  rdfs:subClassOf obo:BTO_0001008 .

obo:BTO_0003482 a rdfs:Class ;
  rdfs:label "WI-26 cell" ;
  rdfs:comment "Human lung fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0006413 a rdfs:Class ;
  rdfs:label "MV-4-11 cell" ;
  rdfs:comment "The MV4-11 cell line was established from the blast cells of a 10-year-old male with biphenotypic B-myelomonocytic leukemia." ;
  rdfs:subClassOf obo:BTO_0006412 .

obo:BTO_0006081 a rdfs:Class ;
  rdfs:label "hiPSC cell" ;
  rdfs:comment "Human induced pluripotent stem cell." ;
  rdfs:subClassOf obo:BTO_0006079 .

obo:BTO_0001089 a rdfs:Class ;
  rdfs:label "MPC-11 cell" ;
  rdfs:comment "Tissue: Mouse BALB/c B-lymphocyte, plasmacytoma, myeloma. Morphology: lymphoblast. MPC-11 cells have been reported to produce murine IL-6." ;
  rdfs:subClassOf obo:BTO_0000456 .

obo:BTO_0005837 a rdfs:Class ;
  rdfs:label "NCI-H1944 cell" ;
  rdfs:comment "Human stage 3B adenocarcinoma non-small cell lung cancer cell line, established from soft tissue of a 62 years old caucasian female." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002824 a rdfs:Class ;
  rdfs:label "SF-188 cell" ;
  rdfs:comment "Human glioma cell line." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0000138 a rdfs:Class ;
  rdfs:label "midbrain" ;
  rdfs:comment "The middle of the three primary divisions of the developing vertebrate brain or the corresponding part of the adult brain." .

obo:BTO_0000993 a rdfs:Class ;
  rdfs:label "paneth cell" ;
  rdfs:comment "Coarsely granular secretory cells found in the basal regions of crypts in the small intestine." .

obo:BTO_0004601 a rdfs:Class ;
  rdfs:label "TE-1 cell" ;
  rdfs:comment "Human esophageal squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0004680 a rdfs:Class ;
  rdfs:label "stratum basale" ;
  rdfs:comment "The deepest layer, as of the epidermis or the endometrium. In the epidermis it is a single layer of cells. In the endometrium it provides the regenerative tissue after menstrual loss of the functional layer." .

obo:BTO_0000276 a rdfs:Class ;
  rdfs:label "colostrum" ;
  rdfs:comment "Milk secreted for a few days after parturition and characterized by high protein and antibody content." ;
  rdfs:subClassOf obo:BTO_0000868 .

obo:BTO_0005417 a rdfs:Class ;
  rdfs:label "parietal trophoblast giant cell" ;
  rdfs:subClassOf obo:BTO_0005362 .

obo:BTO_0000270 a rdfs:Class ;
  rdfs:label "colon ascendens" ;
  rdfs:comment "The portion of the colon between the cecum and the right colic flexure." .

obo:BTO_0000925 a rdfs:Class ;
  rdfs:label "nerve" ;
  rdfs:comment "Any of the filamentous bands of nervous tissue that connect parts of the nervous system with the other organs, conduct nervous impulses, and are made up of axons and dendrites together with protective and supportive structures." .

obo:BTO_0001109 a rdfs:Class ;
  rdfs:label "HCT-116 cell" ;
  rdfs:comment "Human colon colorectal carcinoma cell line from a male organism. Human colon carcinoma cell line; established from the primary colon carcinoma of an adult man." ;
  rdfs:subClassOf obo:BTO_0001616 .

obo:BTO_0005758 a rdfs:Class ;
  rdfs:label "Eca-109 cell" ;
  rdfs:comment "Human esophageal squamous carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002428 .

obo:BTO_0001318 a rdfs:Class ;
  rdfs:label "submandibular ganglion" ;
  rdfs:comment "A parasympathetic ganglion located superior to the deep part of the submandibular gland, on the lateral surface of the hyoglossus muscle; its preganglionic fibers are derived from the facial nerve by way of the chorda tympani and lingual nerve, and its postganglionic fibers supply the submandibular and sublingual glands; sensory and postganglionic sympathetic fibers pass through the ganglion." ;
  rdfs:subClassOf obo:BTO_0001256 .

obo:BTO_0004691 a rdfs:Class ;
  rdfs:label "hippocampus minor" ;
  rdfs:comment "The lower of two elevations on the medial wall of the posterior horn of the lateral ventricle of the brain, caused by the depth of the calcarine sulcus." .

obo:BTO_0004259 a rdfs:Class ;
  rdfs:label "primitive neuroectodermal tumor cell line" .

obo:BTO_0001898 a rdfs:Class ;
  rdfs:label "mbn-2 cell" ;
  rdfs:comment "Drosophila melanogaster haemocyte cell line." ;
  rdfs:subClassOf obo:BTO_0001897 .

obo:BTO_0006063 a rdfs:Class ;
  rdfs:label "YAC-1 cell" ;
  rdfs:comment "Mouse lymphoma cell line; induced with moloney murine leukemia virus." ;
  rdfs:subClassOf obo:BTO_0000104 .

obo:BTO_0003550 a rdfs:Class ;
  rdfs:label "KP-2 cell" ;
  rdfs:comment "Human pancreatic cancer cell line of primary pancreatic origin." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0004561 a rdfs:Class ;
  rdfs:label "thymic stromal cell" ;
  rdfs:comment "Cells in the thymus can be divided into thymic stromal cells and cells of hematopoietic origin." .

obo:BTO_0002438 a rdfs:Class ;
  rdfs:label "Dogiel's corpuscle" ;
  rdfs:comment "A type of lamellated corpuscle found in the genital mucous membranes and in the skin around the nipples." .

obo:BTO_0003189 a rdfs:Class ;
  rdfs:label "SNU-475 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0000309 a rdfs:Class ;
  rdfs:label "bundle sheath cell" ;
  rdfs:comment "Cells surrounding the vascular bundle in C4 plants." .

obo:BTO_0006138 a rdfs:Class ;
  rdfs:label "internal capsule" ;
  rdfs:comment "The internal capsule is a white matter structure situated in the inferomedial part of each cerebral hemisphere of the brain." ;
  rdfs:subClassOf obo:BTO_0000236 .

obo:BTO_0003085 a rdfs:Class ;
  rdfs:label "uterine anchor cell" ;
  rdfs:comment "In Caenorhabditis elegans, uterine-vulval connection is established by the activity of a single cell, the anchor cell (AC), that lies at the interface between the ectodermal vulva and the mesodermal uterus." .

obo:BTO_0001808 a rdfs:Class ;
  rdfs:label "saphenous vein" ;
  rdfs:comment "Either of two main superficial veins of the leg, one larger than the other, that begin at the foot." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0001084 a rdfs:Class ;
  rdfs:label "plantlet" ;
  rdfs:comment "A small or young plant." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0001930 a rdfs:Class ;
  rdfs:label "A20 cell" ;
  rdfs:comment "Murine B-lymphoma cell line." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0000452 a rdfs:Class ;
  rdfs:label "fibroblast" ;
  rdfs:comment "A connective-tissue cell of mesenchymal origin that secretes proteins and especially molecular collagen from which the extracellular fibrillar matrix of connective tissue forms." ;
  rdfs:subClassOf obo:BTO_0000421 .

obo:BTO_0002513 a rdfs:Class ;
  rdfs:label "Ewing's sarcoma cell" ;
  rdfs:comment "A malignant primary bone tumour that arises most commonly in the first three decades of life." ;
  rdfs:subClassOf obo:BTO_0001207 , obo:BTO_0004255 .

obo:BTO_0004150 a rdfs:Class ;
  rdfs:label "thoracic spine" ;
  rdfs:comment "That part of the spine comprising the thoracic vertebrae." .

obo:BTO_0004631 a rdfs:Class ;
  rdfs:label "glomerular endothelium" ;
  rdfs:comment "The glomerular endothelium sits on a very thick glomerular basement membrane." ;
  rdfs:subClassOf obo:BTO_0000393 .

obo:BTO_0006002 a rdfs:Class ;
  rdfs:label "0308 cell" ;
  rdfs:comment "Human glioblastoma multiforme stem cell line, GSC." ;
  rdfs:subClassOf obo:BTO_0006001 .

obo:BTO_0004342 a rdfs:Class ;
  rdfs:label "agranular insular cortex" ;
  rdfs:comment "The insular cortex has regions of variable cell structure or cytoarchitecture, changing from granular in the posterior portion to agranular in the anterior portion." .

obo:BTO_0000485 a rdfs:Class ;
  rdfs:label "culture condition:fructose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005900 a rdfs:Class ;
  rdfs:label "culture condition:n-hexadecane grown-cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002782 a rdfs:Class ;
  rdfs:label "inferior mesenteric vein" ;
  rdfs:comment "The inferior (lower) mesenteric vein empties into the splenic vein." ;
  rdfs:subClassOf obo:BTO_0002781 .

obo:BTO_0005509 a rdfs:Class ;
  rdfs:label "culture condition:2-aminophenol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005836 a rdfs:Class ;
  rdfs:label "NCI-H1792 cell" ;
  rdfs:comment "Human lung stage 4 adenocarcinoma cell line; established from a pleural effusion of a 50 years old caucasian male smoker." ;
  rdfs:subClassOf obo:BTO_0001911 .

obo:BTO_0001858 a rdfs:Class ;
  rdfs:label "dermal papilla" ;
  rdfs:comment "Any of the conical extensions of the collagen fibers, the capillary blood vessels, and sometimes the nerves of the dermis into corresponding spaces among the downward- or inward-projecting rete ridges on the under surface of the epidermis. On the forehead and ear these are less prominent; on the face, neck, and pubes the relations are reversed and rete pegs extend inward or downward into spaces among a network of dermal ridges." .

obo:BTO_0004572 a rdfs:Class ;
  rdfs:label "HEP-G2/2.2.1 cell" ;
  rdfs:comment "Human hepatocellular carcinoma cell line; derived from Hep-G2. The parental cells were stably transfected at passage 48 with a human cholesterol 7 alpha-hydroxylase CYP7 minigene/Luciferase construct." .

obo:BTO_0000441 a rdfs:Class .

obo:BTO_0004200 a rdfs:Class ;
  rdfs:label "RCSN-3 cell" ;
  rdfs:comment "RCSN-3 cells are a cloned cell line derived from the substantia nigra of an adult rat." ;
  rdfs:subClassOf obo:BTO_0004199 .

obo:BTO_0004408 a rdfs:Class ;
  rdfs:label "culture condition:CD34+ cell" ;
  rdfs:comment "Cells expressing CD34 are normally found in the umbilical cord and bone marrow as hematopoietic cells, a subset of mesenchymal stem cells, endothelial progenitor cells, endothelial cells of blood vessels but not lymphatics, except pleural lymphatics, mast cells, a sub-population dendritic cells in the interstitium and around the adnexa of dermis of skin, as well as cells in soft tissue tumors." ;
  rdfs:subClassOf obo:BTO_0002008 .

obo:BTO_0000045 a rdfs:Class ;
  rdfs:label "adrenal cortex" ;
  rdfs:comment "The outer portion of the adrenal glands that produces several steroid hormones, including cortisol and aldosterone." .

obo:BTO_0004071 a rdfs:Class ;
  rdfs:label "middle ear squamous cell carcinoma cell" ;
  rdfs:comment "Squamous cell carcinoma of the middle ear (MESCC) is an uncommon tumor and is associated with a history of long-term chronic otitis media (COM) in most cases." ;
  rdfs:subClassOf obo:BTO_0001289 .

obo:BTO_0000058 a rdfs:Class ;
  rdfs:label "alimentary canal" ;
  rdfs:comment "The mucous membrane-lined tube of the digestive system through which food passes, in which digestion takes place, and from which wastes are eliminated. It extends from the mouth to the anus and includes the pharynx, esophagus, stomach, and intestines." ;
  rdfs:subClassOf obo:BTO_0001491 .

obo:BTO_0001815 a rdfs:Class ;
  rdfs:label "stellate ganglion" ;
  rdfs:comment "A composite ganglion formed by fusion of the inferior cervical ganglion and the first thoracic ganglion of the sympathetic chain of a vertebrate animal." ;
  rdfs:subClassOf obo:BTO_0001333 .

obo:BTO_0001598 a rdfs:Class ;
  rdfs:label "splenocyte" ;
  rdfs:comment "A macrophage of the spleen." ;
  rdfs:subClassOf obo:BTO_0000801 .

obo:BTO_0006424 a rdfs:Class ;
  rdfs:label "BCIRL-HZ-AM2 cell" ;
  rdfs:comment "Ovary cell line, derived from pupal ovaries of Heliothis zea." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0001834 a rdfs:Class ;
  rdfs:label "sympathetic chain" ;
  rdfs:comment "Either of the pair of ganglionated longitudinal cords of the sympathetic nervous system of which one is situated on each side of the spinal column." .

obo:BTO_0005180 a rdfs:Class ;
  rdfs:label "pterygium" ;
  rdfs:comment "A fleshy mass of thickened conjunctiva that grows over part of the cornea usually from the inner side of the eyeball and causes a disturbance of vision." .

obo:BTO_0005367 a rdfs:Class ;
  rdfs:label "H-69AR cell" ;
  rdfs:comment "Human multidrug resistant small cell lung cancer cell line; established from a 55 years old caucasian male." .

obo:BTO_0005848 a rdfs:Class ;
  rdfs:label "K-457 cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0000849 a rdfs:Class ;
  rdfs:label "melanoma cell line" .

obo:BTO_0000702 a rdfs:Class ;
  rdfs:label "L-1210 cell" ;
  rdfs:comment "Mouse lymphocytic leukemia established from the methylcholanthrene-induced tumor in a DBA strain mouse (subline 212, 8-month-old female) in 1949; the cells were propagated by heterotransplantation into DBA/2 mice; an in-vitro suspension culture was first reported in 1966; cells are used for cytotoxicity studies." ;
  rdfs:subClassOf obo:BTO_0000741 .

obo:BTO_0003622 a rdfs:Class ;
  rdfs:label "mucosal mast cell" ;
  rdfs:comment "Two types of mast cells are now recognised, those from connective tissue and a distinct set of mucosal mast cells, the activities of the latter are T-cell dependent." ;
  rdfs:subClassOf obo:BTO_0000830 .

obo:BTO_0004290 a rdfs:Class ;
  rdfs:label "umbilical artery smooth muscle" .

obo:BTO_0001329 a rdfs:Class ;
  rdfs:label "gastrinoma cell" ;
  rdfs:comment "A tumor cell that secretes gastrin; most are islet cell tumors of non-beta cells in the pancreas, but some are found at sites such as the antrum of the stomach, the hilus of the spleen, or regional lymph nodes. This is the usual cause of Zollinger-Ellison syndrome." ;
  rdfs:subClassOf obo:BTO_0000566 .

obo:BTO_0000789 a rdfs:Class ;
  rdfs:label "CA-46 cell" ;
  rdfs:comment "Human Burkitt's lymphoma, established from the ascites fluid of a patient with American-type Burkitt's lymphoma." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0001973 a rdfs:Class ;
  rdfs:label "vascular endothelial cell line" ;
  rdfs:subClassOf obo:BTO_0001519 .

obo:BTO_0006503 a rdfs:Class ;
  rdfs:label "CGL-2 cell" ;
  rdfs:comment "A fusion hybrid of the HeLa adenocarcinoma cell line and normal human fibroblasts. This cell line derived from a hybrid of the HeLa variant, D98/AH2, and a normal human fibroblast strain, GM77." .

obo:BTO_0000968 a rdfs:Class ;
  rdfs:label "osteoclast" ;
  rdfs:comment "A large multinucleate cell found in growing bone that resorbs bony tissue, as in the formation of canals and cavities." ;
  rdfs:subClassOf obo:BTO_0000801 , obo:BTO_0002050 .

obo:BTO_0003146 a rdfs:Class ;
  rdfs:label "zona incerta" ;
  rdfs:comment "A narrow layer of gray matter extending throughout most of the diencephalon, ventral to and separated from the thalamus by the thalamic fasciculus and laterally continuous with the reticular nucleus of the thalamus." ;
  rdfs:subClassOf obo:BTO_0000823 .

obo:BTO_0000953 a rdfs:Class ;
  rdfs:label "nurse cell" ;
  rdfs:comment "Cells accessory to egg and/or sperm formation in a wide variety of organisms. Usually thought to synthesize special substances and to export these to the developing gamete." .

obo:BTO_0002485 a rdfs:Class ;
  rdfs:label "atrial appendage" ;
  rdfs:comment "The ear-shaped appendage of either atrium of the heart." .

obo:BTO_0001786 a rdfs:Class ;
  rdfs:label "pheromone gland" ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0004066 a rdfs:Class ;
  rdfs:label "CHO-XRS6 cell" ;
  rdfs:comment "Chinese hamster ovary Xrs6 mutant cell line. Xrs6 cells carry the Ku86 gene deletion on one allele and silencing methylation on the other." .

obo:BTO_0001718 a rdfs:Class ;
  rdfs:label "embryoid body" ;
  rdfs:comment "Embryoid bodies are structures resembling embryos, occurring in several types of germ cell tumors." ;
  rdfs:subClassOf obo:BTO_0000809 .

obo:BTO_0004382 a rdfs:Class ;
  rdfs:label "skin epithelium" ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0000793 a rdfs:Class ;
  rdfs:label "SH-SY5Y cell" ;
  rdfs:comment "Human neuroblastoma clonal subline of the neuroepithelioma cell line SK-N-SH that had been established in 1970 from the bone marrow biopsy of a 4-year-old girl with metastatic neuroblastoma." .

obo:BTO_0002509 a rdfs:Class ;
  rdfs:label "corticotropic cell" ;
  rdfs:comment "A small, irregularly stellate, acidophilic cell of the adenohypophysis, having small, sparsely distributed secretory granules and secreting corticotropin and beta-endorphin, which are cleaved from a large prohormone called pro-opiomelanocortin." .

obo:BTO_0000056 a rdfs:Class ;
  rdfs:label "zona reticulata" ;
  rdfs:comment "The innermost of the three layers of the adrenal cortex that consists of irregularly arranged cylindrical masses of epithelial cells." .

obo:BTO_0002124 a rdfs:Class ;
  rdfs:label "ampulla" ;
  rdfs:comment "The constant contraction of ampulla (to extend and retract the tube feet) helps to move a starfish. The ampullae are teeth like structures surrounding the radial canal." .

obo:BTO_0002030 a rdfs:Class ;
  rdfs:label "natural killer cell line" .

obo:BTO_0003118 a rdfs:Class ;
  rdfs:label "glans penis" ;
  rdfs:comment "The cap-shaped expansion of the corpus spongiosum at the end of the penis." .

obo:BTO_0001201 a rdfs:Class ;
  rdfs:label "rosette" ;
  rdfs:comment "A cluster of leaves in crowded circles or spirals arising basally from a crown, as in the dandelion, or apically from an axis with greatly shortened internodes, as in many tropical palms." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0005915 a rdfs:Class ;
  rdfs:label "NCI-H727 cell" ;
  rdfs:comment "Human non-small cell carcinoma of the lung established  from a 65 year old Caucasian female, prior to treatment." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004248 a rdfs:Class ;
  rdfs:label "Xenopus A6 cell" ;
  rdfs:comment "Kidney cell line of Xenopus laevis." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0001313 a rdfs:Class ;
  rdfs:label "style" ;
  rdfs:comment "A filiform prolongation of a plant ovary bearing a stigma at its apex." .

obo:BTO_0004963 a rdfs:Class ;
  rdfs:label "acute megakaryoblastic leukemia cell" ;
  rdfs:comment "Acute megakaryoblastic leukemia is a form of leukemia where a majority of the blasts are megakaryoblastic." ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0003992 a rdfs:Class ;
  rdfs:label "ZL-34 cell" ;
  rdfs:comment "Human pleural mesothelioma cell line." ;
  rdfs:subClassOf obo:BTO_0003991 .

obo:BTO_0000586 a rdfs:Class ;
  rdfs:label "colonic cancer cell" ;
  rdfs:comment "A malignant tumour arising from the inner wall of the large intestine." ;
  rdfs:subClassOf obo:BTO_0001533 .

obo:BTO_0002894 a rdfs:Class ;
  rdfs:label "Hepa-1c1c7 cell" ;
  rdfs:comment "Mouse hepatoma cell line. This is a derivative of the BW7756 mouse hepatoma that arose in a C57/L mouse." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0001196 a rdfs:Class ;
  rdfs:label "SF-21 cell" ;
  rdfs:comment "Insect - fall armyworm, Spodoptera frugiperda, cell line. This cell line was derived from immature ovaries of fall armyworm Spodoptera frugiperda pupae (species Spodoptera frugiperda, family Sciaridae, order Lepidoptera); cells are susceptible to Baculovirus infection." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0000809 a rdfs:Class ;
  rdfs:label "germ cell cancer cell" .

obo:BTO_0000920 a rdfs:Class ;
  rdfs:label "neocortex" ;
  rdfs:comment "The newer, six-layered portion of the cerebral cortex, showing stratification and organization characteristic of the most highly evolved type of cerebral tissue." .

obo:BTO_0003150 a rdfs:Class ;
  rdfs:label "pulmonary artery endothelial cell line" .

obo:BTO_0006239 a rdfs:Class ;
  rdfs:label "interfascicular region" ;
  rdfs:comment "A portion of ground tissue located between vascular bundles in a shoot axis." .

obo:BTO_0005411 a rdfs:Class ;
  rdfs:label "culture condition:tetramethylammonium-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005978 a rdfs:Class ;
  rdfs:label "NCI-H2171 cell" ;
  rdfs:comment "Human small cell lung cancer cell line; established in April 1989 from a stage E carcinoma of a 50 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005797 a rdfs:Class ;
  rdfs:label "PEO-4 cell" ;
  rdfs:comment "Human ovarian adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001882 .

obo:BTO_0002153 a rdfs:Class ;
  rdfs:label "pharyngobranchial" ;
  rdfs:comment "The deep, endochondral bone at the top of the gill arch. May bear the upper pharyngeal and a dentigerous plate. May occur on arches 1, 2, 3, 4. Also called super-pharyngeals or superior pharyngeals. Suprapharyngobranchials are never associated with teeth while infrapharyngobranchials may be associated with dermal plates bearing teeth." ;
  rdfs:subClassOf obo:BTO_0002152 .

obo:BTO_0005316 a rdfs:Class ;
  rdfs:label "malignant peripheral nerve sheath cancer cell" ;
  rdfs:comment "A malignant peripheral nerve sheath tumor is a cancerous peripheral nerve sheath tumor." ;
  rdfs:subClassOf obo:BTO_0005315 .

obo:BTO_0005678 a rdfs:Class ;
  rdfs:label "cervicovaginal cell" ;
  rdfs:comment "Cell of or relating to the uterine cervix and the vagina." .

obo:BTO_0004142 a rdfs:Class ;
  rdfs:label "LH-86 cell" ;
  rdfs:comment "Human hepatoma cell line; established from a well-differentiated hepatocellular carcinoma tissue." ;
  rdfs:subClassOf obo:BTO_0000578 .

obo:BTO_0002679 a rdfs:Class ;
  rdfs:label "right testicular vein" ;
  rdfs:comment "A vein that drains the right pampiniform plexus and empties into the inferior vena cava." ;
  rdfs:subClassOf obo:BTO_0002678 .

obo:BTO_0002914 a rdfs:Class ;
  rdfs:label "SK-N-MC cell" ;
  rdfs:comment "Human neuroblastoma cell line; established from the supraorbital metastasis of a neuroblastoma of a 14-year-old girl in 1971; although described in the original paper as neuroblastoma, SK-N-MC is now widely regarded as having originated from the morphologically similar Askin's tumor related to Ewing's sarcoma." ;
  rdfs:subClassOf obo:BTO_0000932 , obo:BTO_0002912 .

obo:BTO_0000709 a rdfs:Class ;
  rdfs:label "secondary spermatocyte" ;
  rdfs:comment "One of the two cells into which a primary spermatocyte divides, and which in turn gives origin to spermatids; called also prespermatid." .

obo:BTO_0002859 a rdfs:Class ;
  rdfs:label "esophageal mucosa" ;
  rdfs:comment "The mucous coat (membrane) lining the esophagus." ;
  rdfs:subClassOf obo:BTO_0000886 .

obo:BTO_0001746 a rdfs:Class ;
  rdfs:label "renal outer medulla" .

obo:BTO_0000261 a rdfs:Class ;
  rdfs:label "culture condition:mannitol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006520 a rdfs:Class ;
  rdfs:label "SKM-1 cell" ;
  rdfs:comment "Human acute myeloid leukemia cell line, established from the peripheral blood of a 76-year-old man with acute monoblastic leukemia in 1989 following myelodysplastic syndromes." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0004302 a rdfs:Class ;
  rdfs:label "plant epithelium" ;
  rdfs:comment "A usually thin layer of parenchyma that lines a cavity or tube of a plant." .

obo:BTO_0002647 a rdfs:Class ;
  rdfs:label "CCD-27Sk cell" ;
  rdfs:comment "Human normal lung fibroblast cell line established from a black 23-weeks-gestation-old human male. The line was derived from normal skin of a neonate that died of complications following premature birth." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0004869 a rdfs:Class ;
  rdfs:label "Mac-1 cell" ;
  rdfs:comment "T cell lymphoblastoid line." ;
  rdfs:subClassOf obo:BTO_0002629 .

obo:BTO_0003099 a rdfs:Class ;
  rdfs:label "internal female genital organ" ;
  rdfs:comment "The various organs in the female that are concerned with reproduction, including the ovaries, uterine tubes, uterus, and vagina." .

obo:BTO_0000235 a rdfs:Class ;
  rdfs:label "basal ganglion" ;
  rdfs:comment "Any of four deeply placed masses of gray matter (as the amygdala) in each cerebral hemisphere. Location: The basal ganglion is located deep within the cerebral hemispheres in the telencephalon region of the brain. It consists of the corpus stratium, subthalamic nucleus and the substantia nigra." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0000960 a rdfs:Class ;
  rdfs:label "UT-7 cell" ;
  rdfs:comment "Human acute myeloid leukemia established from the bone marrow of a 64-year-old man with acute myeloid leukemia (AML M7) at diagnosis in 1988; cells are constitutively cytokine-dependent and responsive to various cytokines." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0000496 a rdfs:Class ;
  rdfs:label "anterior lobe" ;
  rdfs:comment "The portion of the cerebellum lying in front of the primary fissure, comprising the lingula, central lobule, culmen, alae of central lobules, and quadrangular lobules." .

obo:BTO_0006316 a rdfs:Class ;
  rdfs:label "compound leaf" ;
  rdfs:comment "A leaf in which the blade is divided to the midrib, forming two or more distinct blades or leaflets on a common axis, the leaflets themselves occasionally being compound." ;
  rdfs:subClassOf obo:BTO_0000713 .

obo:BTO_0000966 a rdfs:Class ;
  rdfs:label "optic nerve" ;
  rdfs:comment "The optic nerve is the nerve that connects the eye to the brain and carries the impulses formed by the retina to the visual cortex of the brain." .

obo:BTO_0005938 a rdfs:Class ;
  rdfs:label "pharyngeal tooth" ;
  rdfs:comment "Pharyngeal teeth are teeth in the pharyngeal arch of the throat of cyprinids, suckers, and a number of other fish species otherwise lacking teeth." ;
  rdfs:subClassOf obo:BTO_0000397 .

obo:BTO_0003879 a rdfs:Class ;
  rdfs:label "GBM-8401 cell" ;
  rdfs:comment "Human brain glioblastoma multiform cell line." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0003409 a rdfs:Class ;
  rdfs:label "posterior amygdala" .

obo:BTO_0003012 a rdfs:Class ;
  rdfs:label "NCI-H1264 cell" ;
  rdfs:comment "Non-small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0006498 a rdfs:Class ;
  rdfs:label "FISK cell" ;
  rdfs:comment "MYCN single copy neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0000194 a rdfs:Class ;
  rdfs:label "endometrioid carcinoma cell" ;
  rdfs:comment "Ovarian carcinoma cell which resembles typical carcinoma of the endometrium and may be seen with a synchronous endometrial carcinoma. When they appear together, both tend to be of low stage." ;
  rdfs:subClassOf obo:BTO_0001023 .

obo:BTO_0000601 a rdfs:Class ;
  rdfs:label "hippocampus" ;
  rdfs:comment "A curved elongated ridge that extends over the floor of the descending horn of each lateral ventricle of the brain and consists of gray matter covered on the ventricular surface with white matter; The hippocampus is a part of the temporal lobe, which has a well established role in learning, memory and emotion." .

obo:BTO_0002129 a rdfs:Class ;
  rdfs:label "SK-MEL-1 cell" ;
  rdfs:comment "Human melanoma; established from the lymph node metastasis (thoracic duct) of a 29-year-old Caucasian man with primary melanoma in 1966." ;
  rdfs:subClassOf obo:BTO_0002130 .

obo:BTO_0005064 a rdfs:Class ;
  rdfs:label "UACC-1273EV cell" ;
  rdfs:comment "Human melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001234 a rdfs:Class ;
  rdfs:label "seminal vesicle" ;
  rdfs:comment "Either of a pair of glandular pouches that lie one on either side of the male reproductive tract and in the human male secrete a sugar- and protein-containing fluid into the ejaculatory duct." ;
  rdfs:subClassOf obo:BTO_0003096 .

obo:BTO_0001031 a rdfs:Class ;
  rdfs:label "peritoneal fluid" ;
  rdfs:comment "A liquid that is made in the abdominal cavity to lubricate the surface of the tissue that lines the abdominal wall and pelvic cavity and covers most of the organs in the abdomen." .

obo:BTO_0006429 a rdfs:Class ;
  rdfs:label "white adipocyte" ;
  rdfs:comment "White adipocytes are rounded cells that contain a single large fat droplet that occupies over 90% of the cell volume and the mitochondria and nucleus are squeezed into the remaining cell volume." ;
  rdfs:subClassOf obo:BTO_0000443 .

obo:BTO_0002835 a rdfs:Class ;
  rdfs:label "NCI-H358 cell" ;
  rdfs:comment "Human non-small cell lung cancer cell line; established from bronchioalvealoar carcinoma of lung." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0003262 a rdfs:Class ;
  rdfs:label "HCN-2 cell" ;
  rdfs:comment "A human cortical neuronal cell line, established from a 7 years old female." ;
  rdfs:subClassOf obo:BTO_0002515 .

obo:BTO_0002630 a rdfs:Class ;
  rdfs:label "UCI-101 cell" ;
  rdfs:comment "Human ovarian cancer cell line." ;
  rdfs:subClassOf obo:BTO_0000811 .

obo:BTO_0003200 a rdfs:Class ;
  rdfs:label "SK-RC-44 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0004201 a rdfs:Class ;
  rdfs:label "Ewing's sarcoma cell line" ;
  rdfs:comment "A malignant primary bone tumour that arises most commonly in the first three decades of life." ;
  rdfs:subClassOf obo:BTO_0004785 .

obo:BTO_0004999 a rdfs:Class ;
  rdfs:label "vaginal smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0001447 a rdfs:Class ;
  rdfs:label "forearm" ;
  rdfs:comment "The part of the arm between the elbow and the wrist; also: the corresponding part in other vertebrates." .

obo:BTO_0004055 a rdfs:Class ;
  rdfs:label "COS cell" ;
  rdfs:comment "A cell line derived from the african green monkey and used for transfection and cloning. The cells are simian fibroblasts (cv 1 cells) transformed by sv40 that is deficient in the origin of replication region. They express large t antigen constitutively and if transfected with a vector containing a normal sv40 origin have all the other early viral genes necessary to generate multiple copies of the vector and thus to give very high levels of expression." .

obo:BTO_0001526 a rdfs:Class ;
  rdfs:label "renal medulla cell line" .

obo:BTO_0003862 a rdfs:Class ;
  rdfs:label "CCD-19LU cell" ;
  rdfs:comment "Human normal lung fibroblast cell line; established from a 20-years-old caucasian female." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0002479 a rdfs:Class ;
  rdfs:label "posterior periventricular nucleus" ;
  rdfs:comment "A nucleus of nerve cells in the intermediate hypothalamic area, lying in the posterior part of the third ventricle." ;
  rdfs:subClassOf obo:BTO_0002449 .

obo:BTO_0001695 a rdfs:Class ;
  rdfs:label "blastopore" ;
  rdfs:comment "During gastrulation cells on the surface of the embryo move into the interior to form the mesoderm and endoderm. The opening formed by this invagination of cells is the blastopore. It is an opening from the archenteron, the primitive gut, to the exterior. In some animals this opening becomes the anus, whilst in others it closes up and the anus opens at the same spot or nearby." .

obo:BTO_0003900 a rdfs:Class ;
  rdfs:label "MCF-10F cell" ;
  rdfs:comment "Normal breast epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0002768 .

obo:BTO_0000665 a rdfs:Class ;
  rdfs:label "KB cell" ;
  rdfs:comment "Human cervix carcinoma (derivative of HELA) originally described as epidermoid carcinoma established from the mouth of a Caucasian man in 1954; however, as shown by DSMZ DNA fingerprinting this cell line must be considered an HELA subclone." .

obo:BTO_0005588 a rdfs:Class ;
  rdfs:label "peg cell" ;
  rdfs:comment "A peg cell is a non-ciliated epithelial cell within the uterine tube. It is also called an intercalary cell or secretory cell. It is one of the two epithelial cells of the fallopian tube, along with ciliated simple columnar epithelial cells." .

obo:BTO_0001893 a rdfs:Class ;
  rdfs:label "ring stage" ;
  rdfs:comment "The early trophozoite in the erythrocytic stage of the life cycle of hemosporian protozoa, which after Romanovsky staining has blue cytoplasm surrounding a clear zone with a red nucleus at one side, giving the cell the appearance of a signet ring." ;
  rdfs:subClassOf obo:BTO_0001397 .

obo:BTO_0001707 a rdfs:Class ;
  rdfs:label "coelom" ;
  rdfs:comment "The cavity within the body of all animals higher than the coelenterates and certain primitive worms, formed by the splitting of the embryonic mesoderm into two layers. In mammals it forms the peritoneal, pleural, and pericardial cavities." .

obo:BTO_0003533 a rdfs:Class ;
  rdfs:label "NOR-P1 cell" ;
  rdfs:comment "Human cell line derived from pancreatic cancer." ;
  rdfs:subClassOf obo:BTO_0000794 .

obo:BTO_0001753 a rdfs:Class ;
  rdfs:label "mandibular organ" .

obo:BTO_0003413 a rdfs:Class ;
  rdfs:label "encysting cell" ;
  rdfs:comment "A cell being in the process of forming a cyst or becoming enclosed in a capsule." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0005231 a rdfs:Class ;
  rdfs:label "culture condition:D-glucose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004507 a rdfs:Class ;
  rdfs:label "sEnd-1 cell" ;
  rdfs:comment "Murine vascular endothelial cell line." ;
  rdfs:subClassOf obo:BTO_0001973 .

obo:BTO_0003827 a rdfs:Class ;
  rdfs:label "culture condition:pimelate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004825 a rdfs:Class ;
  rdfs:label "NCI-H524 cell" ;
  rdfs:comment "Human variant small cell lung cancer cell line; derived from lymph node metastasis from a 63 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0004776 a rdfs:Class ;
  rdfs:label "striatonigral neuron" ;
  rdfs:comment "Neuron projecting from the corpus striatum to the substantia nigra." ;
  rdfs:subClassOf obo:BTO_0000938 .

obo:BTO_0000369 a rdfs:Class ;
  rdfs:label "egg" ;
  rdfs:comment "The hard-shelled reproductive body produced by a bird and especially by the common domestic chicken; also: its contents used as food." .

obo:BTO_0004295 a rdfs:Class ;
  rdfs:label "umbilical artery endothelial cell" ;
  rdfs:subClassOf obo:BTO_0001854 .

obo:BTO_0005545 a rdfs:Class ;
  rdfs:label "renal epithelial cell" .

obo:BTO_0005298 a rdfs:Class ;
  rdfs:label "MUM-2B cell" ;
  rdfs:comment "Highly invasive human uveal melanoma line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001935 a rdfs:Class ;
  rdfs:label "BW-5147.3 cell" ;
  rdfs:comment "This line is a clone of the BW5147 cell line which was established from a spontaneous AKR/J thymoma." .

obo:BTO_0004105 a rdfs:Class ;
  rdfs:label "FPMI-CF-203 cell" ;
  rdfs:comment "The FPMI-CF-203 cell line, was developed from spruce budworm midgut tissues." ;
  rdfs:subClassOf obo:BTO_0002145 .

obo:BTO_0006323 a rdfs:Class ;
  rdfs:label "culture condition:itaconate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002193 a rdfs:Class ;
  rdfs:label "SCC-13 cell" ;
  rdfs:comment "Squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000375 , obo:BTO_0002024 .

obo:BTO_0000311 a rdfs:Class ;
  rdfs:label "culture filtrate" ;
  rdfs:comment "Added as synonym to culture fluid." .

obo:BTO_0002610 a rdfs:Class ;
  rdfs:label "pseudopodium" ;
  rdfs:comment "A temporary cytoplasmic extrusion by means of which an ameba or other ameboid organism or cell moves about or engulfs food." ;
  rdfs:subClassOf obo:BTO_0001262 .

obo:BTO_0000086 a rdfs:Class ;
  rdfs:label "culture condition:arabinose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000246 a rdfs:Class ;
  rdfs:label "CHO cell" ;
  rdfs:comment "Chinese hamster ovary cell line, that was initiated from an ovary biopsy of an adult Chinese hamster in 1957." ;
  rdfs:subClassOf obo:BTO_0000977 .

obo:BTO_0003786 a rdfs:Class ;
  rdfs:label "transverse occipital sulcus" ;
  rdfs:comment "The posterior, vertical limb of the intraparietal sulcus." .

obo:BTO_0006204 a rdfs:Class ;
  rdfs:label "Caki-2 cell" ;
  rdfs:comment "Human kidney clear cell carcinoma cell line, established from a 69-years-old caucasian male." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0004435 a rdfs:Class ;
  rdfs:label "HOSE 11-12 cell" ;
  rdfs:comment "Human ovarian surface epithelial cell line, expressing HPV 16 E6E7, donor age 49 years." ;
  rdfs:subClassOf obo:BTO_0002555 .

obo:BTO_0002883 a rdfs:Class ;
  rdfs:label "32D clone3 cell" ;
  rdfs:comment "Mouse bone marrow cell line." .

obo:BTO_0005606 a rdfs:Class ;
  rdfs:label "precerebellar system" ;
  rdfs:comment "The precerebellar system provides the principal input to the cerebellum and is essential for coordinated motor activity. This ventral brainstem system in the mouse derives from dorsally located rhombic neuroepithelium." ;
  rdfs:subClassOf obo:BTO_0000146 .

obo:BTO_0001386 a rdfs:Class ;
  rdfs:label "tongue muscle" ;
  rdfs:subClassOf obo:BTO_0000021 .

obo:BTO_0003077 a rdfs:Class ;
  rdfs:label "RAMOS-AW cell" ;
  rdfs:comment "Human Caucasian Burkitt's lymphoma. Derived by in vitro infection of Ramos cells with EBV. The line is EBV positive." .

obo:BTO_0000257 a rdfs:Class ;
  rdfs:label "uterine cancer cell" .

obo:BTO_0003680 a rdfs:Class ;
  rdfs:label "Mo-B cell" ;
  rdfs:comment "Human Caucasian peripheral blood hairy cell leukaemia B-lymphoblast cell line." ;
  rdfs:subClassOf obo:BTO_0003681 .

obo:BTO_0000944 a rdfs:Class ;
  rdfs:label "NIH-3T3 cell" ;
  rdfs:comment "Very widely used mouse fibroblast cell line; 3T3 cells have been derived from different mouse strains and it is therefore important to define the particular cell line. NIH strain were from the National Institute of Health in the USA." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0005628 a rdfs:Class ;
  rdfs:label "parametrial fat pad" ;
  rdfs:comment "The fat adjacent to the uterus." ;
  rdfs:subClassOf obo:BTO_0000444 .

obo:BTO_0006030 a rdfs:Class ;
  rdfs:label "HOC-313 cell" ;
  rdfs:comment "Human oral squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002211 .

obo:BTO_0000119 a rdfs:Class ;
  rdfs:label "berry" ;
  rdfs:comment "A simple fruit (as a currant, grape, tomato, or banana) with a pulpy or fleshy pericarp." ;
  rdfs:subClassOf obo:BTO_0000486 .

obo:BTO_0002765 a rdfs:Class ;
  rdfs:label "PC6-14 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0000351 a rdfs:Class ;
  rdfs:label "disc" ;
  rdfs:comment "The central part of the flower head of a typical composite made up of closely packed tubular flowers." .

obo:BTO_0005933 a rdfs:Class ;
  rdfs:label "SUM-1315MO2 cell" ;
  rdfs:comment "A cell line developed from a mouse xenograft derived by transplantation of a metastatic nodule of a patient with infiltrating ductal carcinoma." ;
  rdfs:subClassOf obo:BTO_0005932 .

obo:BTO_0004284 a rdfs:Class ;
  rdfs:label "TK-164 cell" ;
  rdfs:comment "Cell line TK-164 was derived from a primary RCC obtained following a right radical nephrectomy in a 69-year-old male on May 28, 1982." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0003334 a rdfs:Class ;
  rdfs:label "culture condition:lactate/sulfate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000078 a rdfs:Class ;
  rdfs:label "microglia" ;
  rdfs:comment "The small, non-neural, interstitial cells of mesodermal origin that form part of the supporting structure of the central nervous system. They are of various forms and may have slender branched processes. They are migratory and act as phagocytes to waste products of nerve tissue." ;
  rdfs:subClassOf obo:BTO_0000524 , obo:BTO_0000801 , obo:BTO_0002606 .

obo:BTO_0000777 a rdfs:Class ;
  rdfs:label "adenoid" ;
  rdfs:comment "An enlarged mass of lymphoid tissue at the back of the pharynx characteristically obstructing breathing." ;
  rdfs:subClassOf obo:BTO_0000753 .

obo:BTO_0003734 a rdfs:Class ;
  rdfs:label "598-RCC cell" ;
  rdfs:comment "Human renal cell carcinoma (RCC) cell line, obtained by primary culturing of a clear cell carcinoma." ;
  rdfs:subClassOf obo:BTO_0000383 .

obo:BTO_0004887 a rdfs:Class ;
  rdfs:label "ACC-LC-319 cell" ;
  rdfs:comment "Human non-small cell lung cancer (NSCLC) cell line." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002841 a rdfs:Class ;
  rdfs:label "bile canaliculus" ;
  rdfs:comment "Fine tubular canals running between liver cells, throughout the parenchyma, usually occurring singly between each adjacent pair of cells, and forming a three-dimensional network of polyhedral meshes, with a single cell in each mesh." .

obo:BTO_0001367 a rdfs:Class ;
  rdfs:label "thigh muscle" ;
  rdfs:subClassOf obo:BTO_0000722 .

obo:BTO_0004442 a rdfs:Class ;
  rdfs:label "UT-SCC-5 cell" ;
  rdfs:comment "Human squamous cell carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004438 .

obo:BTO_0005433 a rdfs:Class ;
  rdfs:label "culture condition:4-nitrophenol-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0000658 a rdfs:Class ;
  rdfs:label "uterine adenocarcinoma cell" ;
  rdfs:comment "The most common form of endometrial carcinoma, containing tumor cells differentiated into glandular tissue with little or no stroma." ;
  rdfs:subClassOf obo:BTO_0000257 , obo:BTO_0000604 .

obo:BTO_0005863 a rdfs:Class ;
  rdfs:label "culture condition:ethylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006330 a rdfs:Class ;
  rdfs:label "proglottid" ;
  rdfs:comment "Any of the segments of a tapeworm; they contain both male and female reproductive organs." .

obo:BTO_0002088 a rdfs:Class ;
  rdfs:label "ependymoma cell" ;
  rdfs:comment "A neoplasm composed of differentiated ependymal cells; most ependymomas are slow growing and benign, but malignant varieties occur." ;
  rdfs:subClassOf obo:BTO_0000526 .

obo:BTO_0004353 a rdfs:Class ;
  rdfs:label "somatosensory cortex" ;
  rdfs:comment "Area of the parietal lobe concerned with receiving general sensations. It lies posterior to the central sulcus." .

obo:BTO_0006152 a rdfs:Class ;
  rdfs:label "microtome section" ;
  rdfs:comment "A microtome is a tool used to cut extremely thin slices of material, known as sections." ;
  rdfs:subClassOf obo:BTO_0001490 .

obo:BTO_0002327 a rdfs:Class ;
  rdfs:label "stem cortex" ;
  rdfs:comment "The outermost rows of cells in a cross section of the stem." .

obo:BTO_0002248 a rdfs:Class ;
  rdfs:label "globus pallidus medialis" ;
  rdfs:comment "Globus pallidus medial segment: the smaller, medial part of the globus pallidus, separated from the larger, lateral part by the medial medullary lamina." .

obo:BTO_0000427 a rdfs:Class ;
  rdfs:label "pituitary gland cell line" .

obo:BTO_0005444 a rdfs:Class ;
  rdfs:label "root nodule primordium" ;
  rdfs:comment "To form a root nodule primordium, fully differentiated root cortical cells have to be developmentally reprogrammed, which starts with mitotic activation of these cells. This is induced by Nod factors and leads to the formation of nodule primordia. Upon infection by rhizobia these primordia subsequently differentiate in nodules." ;
  rdfs:subClassOf obo:BTO_0004791 .

obo:BTO_0005106 a rdfs:Class ;
  rdfs:label "culture condition:ethylbenzene-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004793 a rdfs:Class ;
  rdfs:label "TC1 cell" ;
  rdfs:comment "Immunized T-lymphocytes which can directly destroy appropriate target cells. These CD8-positive cells are distinct from natural killer cells and from KILLER CELLS mediating antibody-dependent cell cytotoxicity. There are two effector phenotypes: TC1 and TC2." ;
  rdfs:subClassOf obo:BTO_0000782 .

obo:BTO_0000713 a rdfs:Class ;
  rdfs:label "leaf" ;
  rdfs:comment "A lateral outgrowth from a plant stem that is typically a flattened expanded variably shaped greenish organ, constitutes a unit of the foliage, and functions primarily in food manufacture by photosynthesis." .

obo:BTO_0005540 a rdfs:Class ;
  rdfs:label "culture condition:dimethylsulfone-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0002570 a rdfs:Class ;
  rdfs:label "coronary artery smooth muscle cell line" ;
  rdfs:subClassOf obo:BTO_0002195 .

obo:BTO_0002496 a rdfs:Class ;
  rdfs:label "dentate gyrus" ;
  rdfs:comment "A serrated strip of gray matter under the medial border of the hippocampus and in its depths; it is an archaeocortex which develops along the edge of the hippocampal fissure and which consists of molecular, granular, and polymorphic layers." .

obo:BTO_0003196 a rdfs:Class ;
  rdfs:label "SK-RC-17 cell" ;
  rdfs:comment "Human renal cancer cell line." ;
  rdfs:subClassOf obo:BTO_0003192 .

obo:BTO_0001662 a rdfs:Class ;
  rdfs:label "allantoic fluid" ;
  rdfs:comment "The fluid contained in the allantois." .

obo:BTO_0002744 a rdfs:Class ;
  rdfs:label "CAPAN-1 cell" ;
  rdfs:comment "Human pancreas adenocarcinoma cell line; established from the liver metastasis of a pancreatic ductal adenocarcinoma in a 40-year-old Caucasian man in 1974." ;
  rdfs:subClassOf obo:BTO_0003883 .

obo:BTO_0002722 a rdfs:Class ;
  rdfs:label "BC-3 cell" ;
  rdfs:comment "EBV negative PEL cell line." ;
  rdfs:subClassOf obo:BTO_0002719 .

obo:BTO_0006495 a rdfs:Class ;
  rdfs:label "spathe" ;
  rdfs:comment "A sheathing bract or pair of bracts partly enclosing an inflorescence and especially a spadix on the same axis." .

obo:BTO_0005639 a rdfs:Class ;
  rdfs:label "LF2 cell" ;
  rdfs:comment "Primary myofibroblast cell culture isolated from an individual patient with idiopathic pulmonary fibrosis." ;
  rdfs:subClassOf obo:BTO_0005637 .

obo:BTO_0001425 a rdfs:Class ;
  rdfs:label "V-79 cell" ;
  rdfs:comment "Chinese hamster lung fibroblast cell line, established from the lung tissue of a Chinese hamster in 1958." ;
  rdfs:subClassOf obo:BTO_0000161 .

obo:BTO_0002208 a rdfs:Class ;
  rdfs:label "K6H6/B5 cell" ;
  rdfs:comment "Mouse/human hybrid myeloma cell line. Heterohybridoma cell line." ;
  rdfs:subClassOf obo:BTO_0001926 .

obo:BTO_0005708 a rdfs:Class ;
  rdfs:label "middle ear cell line" .

obo:BTO_0000164 a rdfs:Class ;
  rdfs:label "Burkitt lymphoma cell" ;
  rdfs:comment "Malignant tumour cell of lymphoblasts derived from B-lymphocytes. Most commonly affects children in tropical Africa: both Epstein-Barr virus and immunosuppression due to malarial infection are involved." ;
  rdfs:subClassOf obo:BTO_0000785 .

obo:BTO_0004854 a rdfs:Class ;
  rdfs:label "PK-1 cell" ;
  rdfs:comment "Human cell line stablished from liver metastases of pancreatic ductal adenocarcinomas." ;
  rdfs:subClassOf obo:BTO_0003883 .

obo:BTO_0001775 a rdfs:Class ;
  rdfs:label "oral epithelium" ;
  rdfs:comment "The epithelial covering of the oral mucosa. Composed of stratified squamous epithelium of varying thickness and varying degrees of keratinization." ;
  rdfs:subClassOf obo:BTO_0000416 .

obo:BTO_0006228 a rdfs:Class ;
  rdfs:label "MDS-92 cell" ;
  rdfs:comment "Human myelodysplastic cell line. Myelodysplastic syndromes are a group of cancers in which immature blood cells in the bone marrow do not mature and therefore do not become healthy blood cells." ;
  rdfs:subClassOf obo:BTO_0000906 .

obo:BTO_0006213 a rdfs:Class ;
  rdfs:label "KELLY cell" ;
  rdfs:comment "Human neuroblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0000932 .

obo:BTO_0003471 a rdfs:Class ;
  rdfs:label "MDA-MB-175-VII cell" ;
  rdfs:comment "Homo sapiens (human) mammary gland breast ductal carcinoma cell line, derived from pleural effusion of a 56 years old black female." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0000337 a rdfs:Class ;
  rdfs:label "dental follicle" ;
  rdfs:comment "The structure within the developing alveolar bone of the jaws enclosing the tooth germ." ;
  rdfs:subClassOf obo:BTO_0001511 .

obo:BTO_0005443 a rdfs:Class ;
  rdfs:label "STKM-2 cell" ;
  rdfs:comment "Human gastric carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000787 .

obo:BTO_0001392 a rdfs:Class ;
  rdfs:label "culture condition:trans-aconitate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0004810 a rdfs:Class ;
  rdfs:label "CHO-22 cell" ;
  rdfs:comment "CHO-K1 cells were stably transfected with one or more plasmids for expression of p22phox." .

obo:BTO_0005113 a rdfs:Class ;
  rdfs:label "TRAMP-C3 cell" ;
  rdfs:comment "This cell line was derived in 1996 from a heterogeneous 32 week primary tumor in the prostate of a PB-Tag C57BL/6 (TRAMP) mouse." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0002657 a rdfs:Class ;
  rdfs:label "mpkCCDc14 cell" ;
  rdfs:comment "Kidney cortical collecting duct cell line." .

obo:BTO_0001256 a rdfs:Class ;
  rdfs:label "parasympathetic ganglion" ;
  rdfs:comment "One of the aggregations of cell bodies of primarily cholinergic neurons of the parasympathetic nervous system, located near to or within the wall of the organs being innervated." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:BTO_0004623 a rdfs:Class ;
  rdfs:label "OCI-M2 cell" ;
  rdfs:comment "Human acute myelocytic leukemia cell line; established in 1984 from the leukemic cells of a 56-year-old patient with erythroleukemia, AML-M6, representing the end stage of a previously identified myelodysplastic syndrome." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0006341 a rdfs:Class ;
  rdfs:label "excretory duct" ;
  rdfs:comment "The excretory duct of Caenorhabditis elegans is a 15 micrometer long, cuticle-lined channel that connects the excretory system to outside via the excretory pore located at midline on the ventral side of the body." .

obo:BTO_0005382 a rdfs:Class ;
  rdfs:label "Rh-5 cell" ;
  rdfs:comment "Human alveolar rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0000243 a rdfs:Class ;
  rdfs:label "vagina" ;
  rdfs:comment "A canal in a female mammal that leads from the uterus to the external orifice of the genital canal." ;
  rdfs:subClassOf obo:BTO_0003099 .

obo:BTO_0000647 a rdfs:Class ;
  rdfs:label "intestinal wall" .

obo:BTO_0005986 a rdfs:Class ;
  rdfs:label "head and neck squamous cell carcinoma cell" ;
  rdfs:comment "Most head and neck cancers are biologically similar. 90% of head and neck cancers are squamous cell carcinomas, so they are called head and neck squamous cell carcinomas (HNSCC). These cancers commonly originate from the mucosal lining (epithelium) of these regions." ;
  rdfs:subClassOf obo:BTO_0005838 .

obo:BTO_0000218 a rdfs:Class ;
  rdfs:label "BALB/3T3 cell" ;
  rdfs:comment "The BALB/3T3 clone A31 is one of several cell lines (see BALB/3T12) developed in 1968 from disaggregated 14- to 17-day-old BALB/c mouse embryos." ;
  rdfs:subClassOf obo:BTO_0001958 .

obo:BTO_0001461 a rdfs:Class ;
  rdfs:label "whole plant" ;
  rdfs:comment "The main part of a plant." ;
  rdfs:subClassOf obo:BTO_0001481 .

obo:BTO_0000766 a rdfs:Class ;
  rdfs:label "blood vessel endothelium" .

obo:BTO_0006198 a rdfs:Class ;
  rdfs:label "esophageal epithelial cell line" .

obo:BTO_0004481 a rdfs:Class ;
  rdfs:label "neural crest-derived stem cell" ;
  rdfs:subClassOf obo:BTO_0004091 .

obo:BTO_0003431 a rdfs:Class ;
  rdfs:label "dermatofibroma cell" ;
  rdfs:comment "A slowly growing benign skin nodule consisting of poorly demarcated cellular fibrous tissue enclosing collapsed capillaries with scattered haemosiderin-pigmented and lipid macrophages. They are common, usually about 1 cm in diameter and occur in the dermis." .

obo:BTO_0003305 a rdfs:Class ;
  rdfs:label "epipodite" ;
  rdfs:comment "The outer branch of the legs in certain Crustacea." .

obo:BTO_0002366 a rdfs:Class ;
  rdfs:label "extravillous trophoblast" ;
  rdfs:comment "The outermost layer of trophoblast, produced by cytotrophoblast where there is direct contact with maternal decidua rather than blood. The EVT cells travel into the decidua, reacting with NK cells and invading maternal blood vessels feeding the placenta, softening the walls and replacing the lining with fetal tissue, a process called conversion." .

obo:BTO_0004088 a rdfs:Class ;
  rdfs:label "female urethra" ;
  rdfs:comment "The tube through which urine leaves the body. It empties urine from the bladder." ;
  rdfs:subClassOf obo:BTO_0001426 , obo:BTO_0003100 .

obo:BTO_0002719 a rdfs:Class ;
  rdfs:label "primary effusion lymphoma cell line" ;
  rdfs:comment "Primary effusion lymphoma (PEL) is a peculiar type of B cell non-Hodgkin lymphoma (NHL) that has been recently recognized as an individual clinico-pathologic category based on the consistent infection of the tumor clone by human herpesvirus type-8 (HHV-8) and the distinctiveness of its clinical and biologic features. Although immunogenotypic studies have confirmed that PEL belongs in all cases to the B cell lineage, the overwhelming majority of cases exhibit a non-B, non-T (ie indeterminate) phenotype, lacking expression of surface immunoglobulins and common B cell associated antigens." ;
  rdfs:subClassOf obo:BTO_0001518 .

obo:BTO_0004985 a rdfs:Class ;
  rdfs:label "angioblast" ;
  rdfs:comment "The mesenchymal tissue of the embryo from which the blood cells and blood vessels differentiate." ;
  rdfs:subClassOf obo:BTO_0001393 .

obo:BTO_0003970 a rdfs:Class ;
  rdfs:label "outer root sheath companion layer" ;
  rdfs:comment "The inner-most layer of the outer root sheath, and is more prominent in some follicles (especially of the beard) compared with others. The cells of the companion layer are more flattened than the other cells of the outer root sheath and do not contain glycogen. In addition, a novel human type II cytokeratin, K6hf, is specifically expressed in the companion layer of the hair follicle. It has been suggested that the border of the companion layer and the outer root sheath is the slippage plane between the inner root sheath and outer root sheath." .

obo:BTO_0003280 a rdfs:Class ;
  rdfs:label "sessile cell" ;
  rdfs:comment "A permanently attached or established cell: not free to move about." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0003248 a rdfs:Class ;
  rdfs:label "brain endothelium" .

obo:BTO_0005955 a rdfs:Class ;
  rdfs:label "DIPG-4 cell" ;
  rdfs:comment "Primary human pediatric GBM line derived from previously irradiated diffuse intrinsic pontine glioma, DIPG at autopsy." ;
  rdfs:subClassOf obo:BTO_0005949 .

obo:BTO_0006407 a rdfs:Class ;
  rdfs:label "K7M2-WT cell" ;
  rdfs:comment "Murine osteosarcoma cell line; derived by intra-osseous injection of the K7 murine osteosarcoma cell line to the proximal tibia of a BALB/c mouse. The resultant primary tumor spontaneously metastasized to the lungs. A pulmonary metastasis was removed from the lung and then surgically implanted to a paraosteal tibial muscle flap of a naïve mouse. This cycle of implantation of pulmonary metastasis to paraosteal tibial muscle flap sites was repeated, resulting in the K7M2 primary tumor. This tumor was dissociated to a single cell suspension to create the K7M2 wt cell line." .

obo:BTO_0001007 a rdfs:Class ;
  rdfs:label "AGS cell" ;
  rdfs:comment "Human Caucasian gastric adenocarcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0002380 .

obo:BTO_0001721 a rdfs:Class ;
  rdfs:label "sternal cartilage" ;
  rdfs:comment "A bar of hyaline cartilage by which the ventral extremity of a rib is attached to the sternum in the case of the true ribs, or to the superiorly adjacent ribs in the case of the upper false ribs." ;
  rdfs:subClassOf obo:BTO_0000206 .

obo:BTO_0001735 a rdfs:Class ;
  rdfs:label "cardiac Purkinje fiber" ;
  rdfs:comment "One of the specialized cardiac muscle fibers, part of the impulse-conducting network of the heart, that rapidly transmit impulses from the atrioventricular node to the ventricles." ;
  rdfs:subClassOf obo:BTO_0002320 .

obo:BTO_0001792 a rdfs:Class ;
  rdfs:label "portal vein" ;
  rdfs:comment "A vein that conducts blood from the digestive organs, spleen, pancreas, and gallbladder to the liver." ;
  rdfs:subClassOf obo:BTO_0000234 .

obo:BTO_0002936 a rdfs:Class ;
  rdfs:label "vaginal cell line" .

obo:BTO_0004414 a rdfs:Class ;
  rdfs:label "KH2 cell" ;
  rdfs:comment "Murine embryonic stem cell line." ;
  rdfs:subClassOf obo:BTO_0001581 .

obo:BTO_0003745 a rdfs:Class ;
  rdfs:label "liposarcoma cell" ;
  rdfs:comment "A malignant tumor that arises in fat cells in deep soft tissue, such as that inside the thigh. Most frequent in middle-aged and older adults (age 40 and above), liposarcomas are the most common of all soft-tissue sarcomas." ;
  rdfs:subClassOf obo:BTO_0001207 .

obo:BTO_0004453 a rdfs:Class ;
  rdfs:label "LN-751 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0005406 a rdfs:Class ;
  rdfs:label "terminal ampoule" ;
  rdfs:comment "The male gonad of shrimps include the lobes of the testis, the vas deferens and the terminal ampoule." .

obo:BTO_0000832 a rdfs:Class ;
  rdfs:label "mastocytoma cell" ;
  rdfs:comment "A nodule of mast cells. Mastocytomas can involve the skin, subcutaneous tissue, and sometimes muscle." .

obo:BTO_0000283 a rdfs:Class ;
  rdfs:label "conidium" ;
  rdfs:comment "An asexual spore produced on a conidiophore." ;
  rdfs:subClassOf obo:BTO_0001171 .

obo:BTO_0004334 a rdfs:Class ;
  rdfs:label "EBV-PBL cell" ;
  rdfs:comment "Epstein-Barr virus (EBV)-transformed peripheral blood lymphocyte (PBL) cell line." ;
  rdfs:subClassOf obo:BTO_0001008 .

obo:BTO_0005338 a rdfs:Class ;
  rdfs:label "Ma-Mel-05 cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0003225 a rdfs:Class ;
  rdfs:label "neurilemoma cell line" .

obo:BTO_0000281 a rdfs:Class ;
  rdfs:label "conidiophore" ;
  rdfs:comment "A specialized fungal hypha that produces conidia." ;
  rdfs:subClassOf obo:BTO_0000612 .

obo:BTO_0005719 a rdfs:Class ;
  rdfs:label "Mel-RMU cell" ;
  rdfs:comment "Human malignant melanoma cell line." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001651 a rdfs:Class ;
  rdfs:label "longissimus thoracis" ;
  rdfs:comment "A muscle that arises as the middle and largest division of the sacrospinalis muscle, that is attached by some of its fibers to the lumbar vertebrae, that is inserted into all the thoracic vertebrae and the lower 9 or 10 ribs, and that depresses the ribs and with the longissimus cervicis extends the spinal column and bends it to one side." .

obo:BTO_0004663 a rdfs:Class ;
  rdfs:label "iliac artery endothelial cell line" .

obo:BTO_0000207 a rdfs:Class ;
  rdfs:label "tibial cartilage" ;
  rdfs:comment "Cartilage pertaining to the tibia." ;
  rdfs:subClassOf obo:BTO_0000206 , obo:BTO_0001252 .

obo:BTO_0001988 a rdfs:Class ;
  rdfs:label "culture condition:dihyrouracil-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001245 a rdfs:Class ;
  rdfs:label "bronchoalveolar stem cell" ;
  rdfs:subClassOf obo:BTO_0002666 .

obo:BTO_0002528 a rdfs:Class ;
  rdfs:label "HBL-7 cell" ;
  rdfs:comment "Human Burkitt's lymphoma cell line, negative for Epstein-Barr virus genome." ;
  rdfs:subClassOf obo:BTO_0000889 .

obo:BTO_0004673 a rdfs:Class ;
  rdfs:label "dorsal aorta" ;
  rdfs:comment "The artery in vertebrate embryos that transports blood from the aortic arches to the trunk and limbs. In adult fish it is a major artery that carries oxygenated blood from the efferent branchial arteries to branches that supply the body organ. In adult tetrapods it arises from the systemic arch." ;
  rdfs:subClassOf obo:BTO_0000135 .

obo:BTO_0004041 a rdfs:Class ;
  rdfs:label "abdominal adipose tissue" ;
  rdfs:comment "Adipose tissue located inside the peritoneal cavity, packed in between internal organs and torso. An excess of visceral fat is known as central obesity, or belly fat, the pot belly or beer belly effect, in which the abdomen protrudes excessively." ;
  rdfs:subClassOf obo:BTO_0001487 .

obo:BTO_0004914 a rdfs:Class ;
  rdfs:label "rheumatoid arthritis disease specific synovial fibroblast" ;
  rdfs:comment "Rheumatoid arthritis synovial fibroblasts constitute a quite unique cell type that distinguishes rheumatoid arthritis from other inflammatory conditions of the joints." .

obo:BTO_0000326 a rdfs:Class ;
  rdfs:label "culture condition:D-lyxose-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0006554 a rdfs:Class ;
  rdfs:label "MVT-1 cell" ;
  rdfs:comment "Mouse mammary tumor cell line, derived from a primary mammary tumor of a MMTV-VEGF/Myc bitransgenic mouse" ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0005058 a rdfs:Class ;
  rdfs:label "SU-DHL-1 cell" ;
  rdfs:comment "Human anaplastic large cell lymphoma cell line, established from the pleural effusion of a 10-year-old boy in 1973; original diagnosis was diffuse histiocytic lymphoma, corrected to diffuse large cell lymphoma (1984) and malignant histiocytosis (1989); according to REAL/WHO classification considered to represent an anaplastic large cell lymphoma (ALCL)." ;
  rdfs:subClassOf obo:BTO_0004868 .

obo:BTO_0006282 a rdfs:Class ;
  rdfs:label "TIG-3 cell" ;
  rdfs:comment "Human embryonic lung fibroblast cell line." ;
  rdfs:subClassOf obo:BTO_0000161 , obo:BTO_0001958 .

obo:BTO_0000904 a rdfs:Class ;
  rdfs:label "culture condition:beta-aminoisobutyrate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0005702 a rdfs:Class ;
  rdfs:label "culture condition:ferulate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0003074 a rdfs:Class ;
  rdfs:label "TT cell" ;
  rdfs:comment "Human Caucasian thyroid medullary carcinoma; established from a thyroid medullary carcinoma of a 77 year old Caucasian female." ;
  rdfs:subClassOf obo:BTO_0003073 .

obo:BTO_0005071 a rdfs:Class ;
  rdfs:label "PC3-MM2 cell" ;
  rdfs:comment "Human prostate cancer cell line." .

obo:BTO_0000018 a rdfs:Class ;
  rdfs:label "A-549 cell" ;
  rdfs:comment "Human lung carcinoma established from an explanted lung tumor which was removed from a 58-year-old Caucasian man in 1972; cells were described to induce tumors in athymic mice and to synthesize lecithin." ;
  rdfs:subClassOf obo:BTO_0004078 .

obo:BTO_0000513 a rdfs:Class ;
  rdfs:label "culture condition:geranoic acid-induced cell" ;
  rdfs:subClassOf obo:BTO_0000001 .

obo:BTO_0004604 a rdfs:Class ;
  rdfs:label "IEC-18 cell" ;
  rdfs:comment "A nontransformed rat small intestine cell line." ;
  rdfs:subClassOf obo:BTO_0001537 .

obo:BTO_0003840 a rdfs:Class ;
  rdfs:label "cerebrovascular system" ;
  rdfs:comment "System pertaining to blood vessels in the brain." .

obo:BTO_0000254 a rdfs:Class ;
  rdfs:label "female reproductive gland" ;
  rdfs:subClassOf obo:BTO_0001488 .

obo:BTO_0000879 a rdfs:Class ;
  rdfs:label "lateral ventricle" ;
  rdfs:comment "An internal cavity in each cerebral hemisphere that consists of a central body and three cornua including an anterior one curving forward and outward, a posterior one curving backward, and an inferior one curving downward." .

obo:BTO_0006514 a rdfs:Class ;
  rdfs:label "foreleg" ;
  rdfs:comment "A front leg." ;
  rdfs:subClassOf obo:BTO_0000721 .

obo:BTO_0005997 a rdfs:Class ;
  rdfs:label "ST-2 cell" ;
  rdfs:comment "Murine, Mus musculus, stromal cell line; established from Whitlock-Witte type long-term bone marrow culture of BC8 mice." ;
  rdfs:subClassOf obo:BTO_0005996 .

obo:BTO_0004454 a rdfs:Class ;
  rdfs:label "LN-774 cell" ;
  rdfs:comment "Human glioblastoma cell line." ;
  rdfs:subClassOf obo:BTO_0001530 .

obo:BTO_0006441 a rdfs:Class ;
  rdfs:label "HCC-1500 cell" ;
  rdfs:comment "Mammary gland primary ductal carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0003816 a rdfs:Class ;
  rdfs:label "culture condition:benzylamine-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001472 a rdfs:Class ;
  rdfs:label "peritoneum" ;
  rdfs:comment "The smooth transparent serous membrane that lines the cavity of the abdomen of a mammal and is folded inward over the abdominal and pelvic viscera." .

obo:BTO_0004765 a rdfs:Class ;
  rdfs:label "UKE-1 cell" ;
  rdfs:comment "Acute myeloid leukemia cell line." ;
  rdfs:subClassOf obo:BTO_0001883 .

obo:BTO_0002312 a rdfs:Class ;
  rdfs:label "mature cell" ;
  rdfs:comment "Having reached full natural growth or development: a mature cell." ;
  rdfs:subClassOf obo:BTO_0002322 .

obo:BTO_0000023 a rdfs:Class ;
  rdfs:label "pectoral muscle" ;
  rdfs:comment "Any of the muscles which connect the ventral walls of the chest with the bones of the upper arm and shoulder and of which there are two on each side of the human body." ;
  rdfs:subClassOf obo:BTO_0000508 .

obo:BTO_0005292 a rdfs:Class ;
  rdfs:label "NCI-H1155 cell" ;
  rdfs:comment "Human non-small cell lung cancer cell line; derived from a lymph node metastasis obtained from a patient prior to therapy." ;
  rdfs:subClassOf obo:BTO_0002553 .

obo:BTO_0002978 a rdfs:Class ;
  rdfs:label "internal secretion" ;
  rdfs:comment "A hormone; a substance secreted by an organ or structure of the endocrine system." .

obo:BTO_0000558 a rdfs:Class ;
  rdfs:label "hatching gland" ;
  rdfs:comment "A transversely oriented set of cells located deep to the enveloping layer on the pericardial membrane, especially prominent during pharyngula period because of the brightly refractile cytoplasmic granules (containing hatching enzymes) of the principal cells of the gland; The fish hatching gland is a unicellular holocrine gland. Although it has recently been found that the precursors or immature forms of the gland cells considerably migrate in the embryonic body during development (see later), the final location of the hatching gland cells in fish is generally restricted to anterior and/or dorsal regions of a well-grown prehatching embryo. In medaka, the final location is somewhat unique: The giant gland cells are mostly localized in the inner surface of the buccal (or pharyngeal) cavity." ;
  rdfs:subClassOf obo:BTO_0000254 .

obo:BTO_0004265 a rdfs:Class ;
  rdfs:label "EJ cell" ;
  rdfs:comment "Human urinary bladder cancer cell line." .

obo:BTO_0002276 a rdfs:Class ;
  rdfs:label "immobilized cell" ;
  rdfs:comment "Cells are immobilized by embedding them for example in Calcium-alginate." ;
  rdfs:subClassOf obo:BTO_0000214 .

obo:BTO_0006099 a rdfs:Class ;
  rdfs:label "S2-028 cell" ;
  rdfs:comment "Human pancreatic ductal adenocarcinoma cell line." .

obo:BTO_0005007 a rdfs:Class ;
  rdfs:label "psammomatous meningioma cell" ;
  rdfs:comment "A firm fibrous neoplasm of meninges of the brain and spinal cord characterized by psammona bodies." ;
  rdfs:subClassOf obo:BTO_0001756 .

obo:BTO_0005343 a rdfs:Class ;
  rdfs:label "Ma-Mel-37b cell" ;
  rdfs:comment "Established melanoma cell line from the Skin Cancer Unit at the German Cancer Research Center, Heidelberg." ;
  rdfs:subClassOf obo:BTO_0000849 .

obo:BTO_0001512 a rdfs:Class ;
  rdfs:label "imago" ;
  rdfs:comment "An insect in its sexually mature adult stage after metamorphosis." ;
  rdfs:subClassOf obo:BTO_0000284 .

obo:BTO_0003464 a rdfs:Class ;
  rdfs:label "CA-HPV-10 cell" ;
  rdfs:comment "Human prostate cancer cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0002468 a rdfs:Class ;
  rdfs:label "ventral anterior nucleus of thalamus" ;
  rdfs:comment "A nucleus anteriorly located within the ventral nuclei of the thalamus, posterior to the reticular nucleus, anterior to the ventral lateral nucleus, and lateral and medial to the internal and external medullary laminae, respectively; it is subdivided into magnocellular and principal divisions." ;
  rdfs:subClassOf obo:BTO_0002467 .

obo:BTO_0001415 a rdfs:Class ;
  rdfs:label "umbilical cord" ;
  rdfs:comment "A cord arising from the navel that connects the fetus with the placenta." .

obo:BTO_0000655 a rdfs:Class ;
  rdfs:label "iris smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0002351 a rdfs:Class ;
  rdfs:label "digitus tertius pedis" ;
  rdfs:comment "The third digit of the foot." ;
  rdfs:subClassOf obo:BTO_0002348 .

obo:BTO_0001865 a rdfs:Class ;
  rdfs:label "PK-15 cell" ;
  rdfs:comment "Pig kidney cell line. Original line: PK-2a; contains type C viruses. Morphology: epithelial-like." ;
  rdfs:subClassOf obo:BTO_0000067 .

obo:BTO_0001013 a rdfs:Class ;
  rdfs:label "pedal muscle" ;
  rdfs:comment "The foot retractor or protractor muscle of a shell." ;
  rdfs:subClassOf obo:BTO_0000887 , obo:BTO_0001262 .

obo:BTO_0000175 a rdfs:Class ;
  rdfs:label "epithalamus" ;
  rdfs:comment "The caudal part of the roof and the adjoining lateral walls of the third ventricle of the diencephalon, comprising the habenular nuclei and their commissure, pineal body, and commissure of the epithalamus." .

obo:BTO_0004587 a rdfs:Class ;
  rdfs:label "AT6.1 cell" ;
  rdfs:comment "Rat prostate carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0001033 .

obo:BTO_0005736 a rdfs:Class ;
  rdfs:label "Hepa-RG cell" ;
  rdfs:comment "Terminally differentiated hepatic cells derived from a human hepatic progenitor cell line that retains many characteristics of primary human hepatocytes." ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0000292 a rdfs:Class ;
  rdfs:label "corpus luteum" ;
  rdfs:comment "A yellowish mass of progesterone-secreting endocrine tissue that forms immediately after ovulation from the ruptured graafian follicle in the mammalian ovary." ;
  rdfs:subClassOf obo:BTO_0000389 .

obo:BTO_0002182 a rdfs:Class ;
  rdfs:label "95D cell" ;
  rdfs:comment "High metastatic human giant-cell lung carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0001920 a rdfs:Class ;
  rdfs:label "Ehrlich Lettre ascites carcinoma cell" ;
  rdfs:comment "Ehrlich-Lettre Ascites strain E mouse, carcinoma cell line." ;
  rdfs:subClassOf obo:BTO_0000604 .

obo:BTO_0006431 a rdfs:Class ;
  rdfs:label "vagal lobe" ;
  rdfs:comment "An enlargement in the dorsal medulla oblongata associated with connections of the vagus nerve and, in some species, the glossopharyngeal nerve." .

obo:BTO_0000294 a rdfs:Class ;
  rdfs:label "dermis" ;
  rdfs:comment "The sensitive vascular inner mesodermic layer of the skin." .

obo:BTO_0005771 a rdfs:Class ;
  rdfs:label "HO-1-N-1 cell" ;
  rdfs:comment "Human squamous carcinoma cell line of the buccal mucosa." ;
  rdfs:subClassOf obo:BTO_0005770 .

obo:BTO_0004323 a rdfs:Class ;
  rdfs:label "2BNhTERT cell" ;
  rdfs:comment "Derivative of the 2BN cell line; derived by stable expression of the catalytic subunit of human telomerase." .

obo:BTO_0004211 a rdfs:Class ;
  rdfs:label "sensillum trichodeum" ;
  rdfs:comment "A sense organ bearing an elongate seta, articulated with the body wall by a membranous socket so that it is free to move; a mechanoreceptor or less often as a chemoreceptor." ;
  rdfs:subClassOf obo:BTO_0001237 .

obo:BTO_0002889 a rdfs:Class ;
  rdfs:label "alveolar macrophage cell line" ;
  rdfs:subClassOf obo:BTO_0002278 .

obo:BTO_0003377 a rdfs:Class ;
  rdfs:label "periderm" ;
  rdfs:comment "A cortical protective layer of many roots and stems that typically consists of phellem, phellogen, and phelloderm." .

obo:BTO_0000434 a rdfs:Class ;
  rdfs:label "exocrine pancreas" ;
  rdfs:comment "That part of the pancreas that acts as an exocrine gland, consisting of the pancreatic acini, which produce pancreatic juice and secrete it into the duodenum to aid in protein digestion." .

obo:BTO_0004114 a rdfs:Class ;
  rdfs:label "adrenocortical carcinoma cell line" .

obo:BTO_0003063 a rdfs:Class ;
  rdfs:label "Mueller cell line" ;
  rdfs:comment "Mueller cells are astrocyte-like radial glial cells that extend vertically throughout the retina, although their nuclei are usually in the middle of the inner nuclear layer." ;
  rdfs:subClassOf obo:BTO_0003061 .

obo:BTO_0003385 a rdfs:Class ;
  rdfs:label "etiolated plant tissue" ;
  rdfs:comment "Etiolation: growth habit adopted by germinating seedlings in the dark. Involves rapid extension of shoot and/or hypocotyl and suppression of chlorophyll formation and leaf growth." ;
  rdfs:subClassOf obo:BTO_0000720 , obo:BTO_0003916 .

obo:BTO_0004494 a rdfs:Class ;
  rdfs:label "RGM-1 cell" ;
  rdfs:comment "Normal rat gastric epithelial cell line." ;
  rdfs:subClassOf obo:BTO_0004493 .

obo:BTO_0001008 a rdfs:Class ;
  rdfs:label "PBMC cell line" ;
  rdfs:subClassOf obo:BTO_0001035 .

obo:BTO_0006565 a rdfs:Class ;
  rdfs:label "NCI-H3282 cell" ;
  rdfs:comment "Human lung small cell lung cancer cell line." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0002758 a rdfs:Class ;
  rdfs:label "PC6-6 cell" ;
  rdfs:comment "A subclone of the PC6 cell line." .

obo:BTO_0001324 a rdfs:Class ;
  rdfs:label "culture condition:sulfate-grown cell" ;
  rdfs:subClassOf obo:BTO_0001479 .

obo:BTO_0001104 a rdfs:Class ;
  rdfs:label "cranial nerve" ;
  rdfs:comment "Any of several nerves that arise in pairs from the brainstem and reach the periphery through openings in the skull. There are 12 such pairs in mammals, birds, and reptiles and usually 10 pairs in amphibians and fish." ;
  rdfs:subClassOf obo:BTO_0000925 .

obo:BTO_0006525 a rdfs:Class ;
  rdfs:label "NCI-H1836 cell" ;
  rdfs:comment "Human small cell lung cancer cell line. Stage L cancer." ;
  rdfs:subClassOf obo:BTO_0002206 .

obo:BTO_0005047 a rdfs:Class ;
  rdfs:label "MGSO-3 cell" ;
  rdfs:comment "Cell line established from human primary breast cancer based on differential centrifugation, followed by growth in culture for over 70 passages." ;
  rdfs:subClassOf obo:BTO_0000356 .

obo:BTO_0002142 a rdfs:Class ;
  rdfs:label "BRIN-BD11 cell" ;
  rdfs:comment "Insulin secreting beta cell line." ;
  rdfs:subClassOf obo:BTO_0000716 .

obo:BTO_0005377 a rdfs:Class ;
  rdfs:label "RD cell" ;
  rdfs:comment "Human rhabdomyosarcoma cell line." ;
  rdfs:subClassOf obo:BTO_0002267 .

obo:BTO_0006084 a rdfs:Class ;
  rdfs:label "uninucleate trophoblast cell" ;
  rdfs:comment "Trophoblast cell having one nucleus." ;
  rdfs:subClassOf obo:BTO_0001079 .

obo:BTO_0005031 a rdfs:Class ;
  rdfs:label "KR-4 cell" ;
  rdfs:comment "An EBV-positive type III lymphoblastoid cell line." ;
  rdfs:subClassOf obo:BTO_0000773 .

obo:BTO_0001062 a rdfs:Class ;
  rdfs:label "PPC-1 cell" ;
  rdfs:comment "Human prostate cancer cell line." .

obo:BTO_0001493 a rdfs:Class ;
  rdfs:label "trunk" ;
  rdfs:comment "1: The human or animal body apart from the head and appendages. 2: The thorax of an insect." .

obo:BTO_0006041 a rdfs:Class ;
  rdfs:label "MMT-060562 cell" ;
  rdfs:comment "Mouse mammary gland tumor cell line." ;
  rdfs:subClassOf obo:BTO_0004086 .

obo:BTO_0004870 a rdfs:Class ;
  rdfs:label "MOLT cell" ;
  rdfs:comment "A model cell line for acute lymphoblastic leukemia." ;
  rdfs:subClassOf obo:BTO_0002144 .

obo:BTO_0000867 a rdfs:Class ;
  rdfs:label "tibialis posterior" ;
  rdfs:comment "A deeply situated muscle that arises from the tibia and fibula, interosseous membrane, and intermuscular septa, that is inserted by a tendon passing under the medial malleolus into the navicular and first cuneiform bones, and that flexes the foot in the direction of the sole and tends to invert it." ;
  rdfs:subClassOf obo:BTO_0000864 .

obo:BTO_0006163 a rdfs:Class ;
  rdfs:label "C-2 cell" ;
  rdfs:comment "Histaminergic neuron of Aplysia californica." ;
  rdfs:subClassOf obo:BTO_0005819 .

obo:BTO_0005150 a rdfs:Class ;
  rdfs:label "anococcygeus muscle" ;
  rdfs:comment "The anococcygeus muscle (AcM) is one of a pair of thin sheets of smooth muscle inserting on the rectum, having a tendinous origin largely on sacral vertebrae." ;
  rdfs:subClassOf obo:BTO_0001260 .

obo:BTO_0000488 a rdfs:Class ;
  rdfs:label "lower epidermis" ;
  rdfs:comment "The epidermal layer directed away or outwards from the axis." ;
  rdfs:subClassOf obo:BTO_0000718 .

obo:BTO_0005305 a rdfs:Class ;
  rdfs:label "corn ear" ;
  rdfs:comment "The ears are female inflorescences, tightly covered over by several layers of leaves, and so closed-in by them to the stem that they do not show themselves easily until the emergence of the pale yellow silks from the leaf whorl at the end of the ear, e.g. by Zea mays." ;
  rdfs:subClassOf obo:BTO_0000628 .

obo:BTO_0005018 a rdfs:Class ;
  rdfs:label "atypical ductal hyperplasia cell" ;
  rdfs:comment "A focal expansion of the number of cells in a terminal breast duct in which a more abnormal pattern of growth is seen, and which is associated with an increased risk of developing breast cancer." ;
  rdfs:subClassOf obo:BTO_0005016 .

obo:BTO_0002668 a rdfs:Class ;
  rdfs:label "bone marrow stromal stem cell" ;
  rdfs:comment "Bone marrow stromal stem cells are known to be able to transform into liver, nerve, muscle and kidney cells." ;
  rdfs:subClassOf obo:BTO_0004052 .

obo:BTO_0002931 a rdfs:Class ;
  rdfs:label "liver epithelial cell line" ;
  rdfs:subClassOf obo:BTO_0000224 .

obo:BTO_0006092 a rdfs:Class ;
  rdfs:label "hTERT-HPNE cell" ;
  rdfs:comment "Human normal pancreas duct cell line; established from a 52 years old male." ;
  rdfs:subClassOf obo:BTO_0000183 .

obo:BTO_0001056 a rdfs:Class ;
  rdfs:label "myeloid leukemia cell" ;
  rdfs:comment "A malignant neoplasm of blood-forming tissues; marked by proliferation of myelocytes and their presence in the blood." ;
  rdfs:subClassOf obo:BTO_0001271 .

obo:BTO_0006024 a rdfs:Class ;
  rdfs:label "NCI-H820 cell" ;
  rdfs:comment "Human lung papillary adenocarcinoma cell line; established from a 53 years old caucasian male; derived from lymph node metastasis." ;
  rdfs:subClassOf obo:BTO_0000762 .

obo:BTO_0005782 a rdfs:Class ;
  rdfs:label "THLE-5b cell" ;
  rdfs:comment "Nonmalignant human hepatocyte cell line." ;
  rdfs:subClassOf obo:BTO_0002931 .

obo:BTO_0002102 a rdfs:Class ;
  rdfs:label "MOPC-104E cell" ;
  rdfs:comment "Murine plasmacytoma cell line." ;
  rdfs:subClassOf obo:BTO_0000456 .

obo:BTO_0003704 a rdfs:Class ;
  rdfs:label "H4 neuroglioma cell" ;
  rdfs:comment "Human brain neuroglioma H4 cell line, established from a 37 years old caucasian male." ;
  rdfs:subClassOf obo:BTO_0000711 .

obo:BTO_0002985 a rdfs:Class ;
  rdfs:label "coronary artery smooth muscle" ;
  rdfs:subClassOf obo:BTO_0001685 .

obo:BTO_0004653 a rdfs:Class ;
  rdfs:label "pectoral fin" ;
  rdfs:comment "In fish, one of the pair of fins that are situated one on each side of the fish just behind the gills. Normally they are used for balancing and braking, but in some species, e.g. Exocoetidae, flying fish, the extra-large fins are used for jumping and for gliding over the water surface." ;
  rdfs:subClassOf obo:BTO_0004649 .

obo:BTO_0004172 a rdfs:Class ;
  rdfs:label "MOLT-14 cell" ;
  rdfs:comment "Human T cell leukemia cell line; established from the bone marrow of a 2-year-old girl with T-ALL (T cell acute lymphoblastic leukemia, FAB L2) at relapse in 1983." ;
  rdfs:subClassOf obo:BTO_0002504 .

obo:BTO_0001905 a rdfs:Class ;
  rdfs:label "tail muscle" ;
  rdfs:comment "A muscle of the tail." ;
  rdfs:subClassOf obo:BTO_0001103 .

obo:BTO_0000827 a rdfs:Class ;
  rdfs:label "mantle muscle" ;
  rdfs:subClassOf obo:BTO_0000887 .

obo:BTO_0006418 a rdfs:Class ;
  rdfs:label "SCC-25/CP cell" ;
  rdfs:comment "Human head and neck squamous cell carcinoma cell line which is relatively stably resistant to CDDP after repeated exposure to escalating doses of the drug." .

obo:BTO_0000159 a rdfs:Class ;
  rdfs:label "bulb" ;
  rdfs:comment "A resting stage of a plant (as the lily, onion, hyacinth, or tulip) that is usually formed underground and consists of a short stem base bearing one or more buds enclosed in overlapping membranous or fleshy leaves." ;
  rdfs:subClassOf obo:BTO_0000720 .

obo:BTO_0002015 a rdfs:Class ;
  rdfs:label "BM-1604 cell" ;
  rdfs:comment "Human prostate carcinoma (derivative of DU-145) cell line. Cytogenetic analysis and DNA fingerprinting at the DSMZ documented that this cell line is identical with the human prostate carcinoma-derived cell line DU-145, but shows some phenotypical differences; DU-145 was established from the tumor tissue removed from the metastatic central nervous system lesion of a 69-year-old man with prostate carcinoma in 1975." .

obo:BTO_0002416 a rdfs:Class ;
  rdfs:label "NCI-H929 cell" ;
  rdfs:comment "Human multiple myeloma cell line; established from the pleural effusion of a 62-year-old white woman with myeloma (IgAkappa) at relapse." ;
  rdfs:subClassOf obo:BTO_0000727 .

obo:BTO_0004713 a rdfs:Class ;
  rdfs:label "larval ventral ganglion" ;
  rdfs:comment "Abdominal neuromere of the larva. The larval ventral ganglion is less complex than the brain, consists of a smaller number of neurons and shows in general a homomeric composition. Despite its reduced complexity, the larval ventral ganglion possesses peptidergic interneurons as well as neurosecretory cells producing peptide hormones, and receives sensory inputs of different modalities." ;
  rdfs:subClassOf obo:BTO_0000497 .

obo:IAO_0000115 a rdf:Property ;
  rdfs:label "definition" ;
  rdfs:range xsd:string .

<http://purl.obolibrary.org/obo/bto#FR> a rdf:Property ;
  rdfs:label "LANGUAGE FRENCH" ;
  rdfs:range xsd:string .

<http://purl.obolibrary.org/obo/bto#GE> a rdf:Property ;
  rdfs:label "LANGUAGE GERMAN" ;
  rdfs:range xsd:string .

<http://purl.obolibrary.org/obo/bto#MS> a rdf:Property ;
  rdfs:label "MISSPELLING" ;
  rdfs:range xsd:string .

<http://purl.obolibrary.org/obo/bto#SCI> a rdf:Property ;
  rdfs:label "SCIENTIFIC NAME" ;
  rdfs:range xsd:string .

<http://purl.obolibrary.org/obo/bto#related_to> a rdf:Property ;
  rdfs:label "related to" ;
  rdfs:range <https://w3id.org/linkml/Any> .
