PREFIX obo:
PREFIX rdf:
PREFIX rdfs:
PREFIX xsd:
obo:XAO_0003134 a rdfs:Class ;
rdfs:label "myotome of trunk somite 13" ;
rdfs:comment "Compartment of trunk somite 13 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:RO_0002202 a rdf:Property ;
rdfs:label "develops from" ;
rdfs:range .
a rdf:Property ;
rdfs:label "ends during" ;
rdfs:comment "Anatomical structure/expression stops being viable, obvious or of utility during this developmental stage." ;
rdfs:range .
a rdf:Property ;
rdfs:label "starts during" ;
rdfs:comment "Anatomical structure/expression begins being viable, obvious or of utility during this developmental stage." ;
rdfs:range .
obo:BFO_0000050 a rdf:Property ;
rdfs:label "part of" ;
rdfs:range .
obo:XAO_0004045 a rdfs:Class ;
rdfs:label "odontogenic papilla" ;
rdfs:comment "Cell condensation that is a well-defined population of densely organized mesenchymal cells that aggregates adjacent to an epithelium." ;
rdfs:subClassOf obo:XAO_0004021 .
obo:XAO_0000200 a rdfs:Class ;
rdfs:label "animal blastomere" ;
rdfs:comment "Pigmented, smaller blastomere of the animal (upper) hemisphere of the cleaving embryo." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0005217 a rdfs:Class ;
rdfs:label "posterior region" ;
rdfs:comment "Anatomical region posteriorly located on the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000075 a rdfs:Class ;
rdfs:label "involuting marginal zone mesenchymal layer" ;
rdfs:comment "Deep layers of the IMZ consisting of prospective migrating mesodermal cells (which will migrate into the interior and form the leading edge of the mesodermal mantle) and prospective converging and extending mesoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0001002 a rdfs:Class ;
rdfs:label "lung primordium" ;
rdfs:comment "Anterior endoderm that develops into the lung buds, and in turn, the lungs. A pair of lateral diverticula just over the liver rudiment is formed by the floor of the foregut just anterior to the liver diverticulum." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000195 a rdfs:Class ;
rdfs:label "utricle" ;
rdfs:comment "Inner ear structure into which the semicircular ducts find their outlet. Along with the saccule, it is part of the balancing apparatus (membranous labyrinth) located within the vestibule of the osseous labyrinth." ;
rdfs:subClassOf obo:XAO_0000214 .
obo:XAO_0004531 a rdfs:Class ;
rdfs:label "amygdala" ;
rdfs:comment "An almond-shaped set of neurons in the medial temporal lobe of the brain that is involved in the linkage of environmental information with social behavior and action selection." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_1000014 a rdfs:Class ;
rdfs:label "NF stage 4 (8-cell)" ;
rdfs:comment "Nieuwkoop and Faber stage 4, corresponding to an embryo of age 2 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Advanced eight cell stage. Dorsal micro- and macromeres usually smaller than ventral ones; dorsal micromeres less pigmented than ventral ones. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
a rdf:Property ;
rdfs:label "preceded by" ;
rdfs:range .
obo:XAO_0000043 a rdfs:Class ;
rdfs:label "neuroectoderm outer layer" ;
rdfs:comment "Superficial neuroectoderm layer consisting of horizontally flattened, pigmented cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000176 a rdfs:Class ;
rdfs:label "dermal system" ;
rdfs:comment "The set of organs forming the outermost layer of the body, comprising the skin and its appendages." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0003251 a rdfs:Class ;
rdfs:label "hatching gland cell" ;
rdfs:comment "Individual secretory cells of the hatching gland that secrete an enzyme that dissolves or weakens the egg jelly and facilitates hatching." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005244 a rdfs:Class ;
rdfs:label "adult kidney" ;
rdfs:comment "Either of the pair of structures lying on either side of the dorsal aorta in which fluid balance is regulated and waste is excreted out in the form of urine." ;
rdfs:subClassOf obo:XAO_0003267 .
obo:XAO_0003253 a rdfs:Class ;
rdfs:label "ligament cell" ;
rdfs:comment "Type of cell that is capable of generating and maintaining the fibrous connective tissue of the ligament." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004324 a rdfs:Class ;
rdfs:label "hyoid head muscle" ;
rdfs:comment "Any of the bilateral hyoid arch muscles innervated by cranial nerve VII." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_1000060 a rdfs:Class ;
rdfs:label "NF stage 48" ;
rdfs:comment "Nieuwkoop and Faber stage 48, corresponding to a tadpole of age 7.5 days at 22-24 Celsius and having the following external morphological criteria: Beginning of pigmentation around n. acusticus. Forelimb bud visible for the first time. Shining gold-coloured abdomen. Hindlimb bud semicircular in lateral aspect. Length: 14 - 17 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000000 a rdfs:Class ;
rdfs:label "Xenopus anatomical entity" ;
rdfs:comment "An entity that is either an individual member of Xenopus or constitutes the structural organization of an individual member of Xenopus." .
obo:XAO_1000071 a rdfs:Class ;
rdfs:label "NF stage 59" ;
rdfs:comment "Nieuwkoop and Faber stage 59, corresponding to a tadpole of age about 45 days at 22-24 Celsius and having the following external morphological criteria: Tentacles beginning to shrivel up. Stretched forelimb reaching down to base of hindlimb. Guanophores appearing near base of forelimb (adult skin area); anterior border of adult skin area on abdomen not yet sharp; appearance of irregular dark spots on back." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003174 a rdfs:Class ;
rdfs:label "sphenoid region" ;
rdfs:comment "Anatomical cluster that forms the floor and side walls of the middle part of the cranium." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005115 a rdfs:Class ;
rdfs:label "ventral animal hemisphere blastomere" ;
rdfs:comment "Blastomere that is any of blastomeres V1.1 and V1.2 and their children cells after division, V1.1.1, V1.1.2, V1.2.1 and V1.2.2, on the left and right sides of embryo." ;
rdfs:subClassOf obo:XAO_0000200 .
obo:XAO_0004179 a rdfs:Class ;
rdfs:label "dorsal longitudinal anastomosing vessel - right branch" ;
rdfs:comment "The minor (right) branch of the dorsal longitudinal anastomosing vessel (dlav); the right branch disappears during NF stage 44." ;
rdfs:subClassOf obo:XAO_0004177 .
obo:XAO_0004542 a rdfs:Class ;
rdfs:label "central amygdala" ;
rdfs:comment "A nucleus comprising the central aspect of the amygdala, identified as a target for ascending auditory information from the central thalamic nucleus and as a major afferent to the vocal pattern generator of the hindbrain." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0005255 a rdfs:Class ;
rdfs:label "filopodium" ;
rdfs:comment "Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast, an axonal or dendritic growth cone, or a dendritic shaft." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004298 a rdfs:Class ;
rdfs:label "hindlimb zeugopod" ;
rdfs:comment "Limb segment that is the middle part of the hindlimb (i.e. the tarsus and tibia-fibula and surrounding tissues)." ;
rdfs:subClassOf obo:XAO_0004264 .
obo:XAO_0005260 a rdfs:Class ;
rdfs:label "ventral trunk" ;
rdfs:comment "Part of the trunk located on the ventral side of the organism." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0004305 a rdfs:Class ;
rdfs:label "zona limitans intrathalamica" ;
rdfs:comment "A narrow stripe of cells that lies between the prospective dorsal and ventral thalami. This boundary contains signals that pattern the prethalamic and thalamic territories of the future mid-diencephalon." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004605 a rdfs:Class ;
rdfs:label "mammilary region" ;
rdfs:comment "A protrusion at the posterior end of the hypothalamus that contains hypothalamic nuclei." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004258 a rdfs:Class ;
rdfs:label "subpallium" ;
rdfs:comment "Structure that comprises the base region of the telencephalon." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005147 a rdfs:Class ;
rdfs:label "parotic crest" ;
rdfs:comment "Cartilaginous extension of the prootic bone which overlies the middle ear region." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004038 a rdfs:Class ;
rdfs:label "skeletal tissue" ;
rdfs:comment "A specialized form of connective tissue in which the extracellular matrix is firm, providing the tissue with resilience, and/or mineralized and that functions in mechanical and structural support." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0004372 a rdfs:Class ;
rdfs:label "parachordal" ;
rdfs:comment "Rod-shaped paired cartilages located on either side of the notochord and involved in the formation of the base of the chondrochranium." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000344 a rdfs:Class ;
rdfs:label "aortic arch 3" ;
rdfs:comment "The third in a series paired arterial connections between the dorsal and ventral aortae. Aortic arch 3 lies within the 3rd branchial arch and branches directly from the ventral aorta to the lateral dorsal aorta, and are retained as the branchial arteries providing circulation through the gills in the adult." ;
rdfs:subClassOf obo:XAO_0000341 .
obo:XAO_0004253 a rdfs:Class ;
rdfs:label "postcaval vein" ;
rdfs:comment "One of three major veins that enter the sinus venosus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0005250 a rdfs:Class ;
rdfs:label "posterior hindgut endoderm" ;
rdfs:comment "Posterior part of the hindgut endoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004195 a rdfs:Class ;
rdfs:label "cellular bone tissue" ;
rdfs:comment "Mineralized bone tissue that always includes non-terminally differentiated osteoblasts and osteocytes." ;
rdfs:subClassOf obo:XAO_0004040 .
obo:XAO_0005197 a rdfs:Class ;
rdfs:label "lateral preplacodal ectoderm" ;
rdfs:comment "One of the 3 domains of the U-shaped preplacodal ectoderm, lying between the anterior PPE and posterior PPE domains." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004005 a rdfs:Class ;
rdfs:label "extraembryonic structure" ;
rdfs:comment "Anatomical structure that is contiguous with the embryo and comprises portions of tissue or cells that will not contribute to the embryo." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0003141 a rdfs:Class ;
rdfs:label "sclerotome of tail somite 17" ;
rdfs:comment "Compartment of tail somite 17 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0003221 a rdfs:Class ;
rdfs:label "retinal 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." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004430 a rdfs:Class ;
rdfs:label "m. intermandibularis primordium" ;
rdfs:comment "The presumptive cells of the intermandibularis muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0006051 a rdfs:Class ;
rdfs:label "innate immune system" ;
rdfs:comment "Immune system that responds broadly and fast (e.g., within hours) upon infection or injury, producing and secreting various compounds (antimicrobial peptides, interferon) and activating cellular defense such as cell-mediated cytotoxicity by natural killer (NK) cells and phagocytosis by neutrophils and macrophages. Innate immunity generally refers to any type of host responses elicited by receptor-encoded genes/gene families." ;
rdfs:subClassOf obo:XAO_0003152 .
obo:XAO_0000183 a rdfs:Class ;
rdfs:label "sclera" ;
rdfs:comment "The opaque, fibrous, protective, outer layer of the eye containing collagen and elastic fiber." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004216 a rdfs:Class ;
rdfs:label "glomeral nexus" ;
rdfs:comment "The narrow bridge that links the two glomera of the pronephric kidney." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005186 a rdfs:Class ;
rdfs:label "adenohypophysis" ;
rdfs:comment "The glandular, anterior lobe of the pituitary gland (hypophysis). It regulates several physiological processes including stress, growth, and reproduction." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003268 a rdfs:Class ;
rdfs:label "cardiac progenitor cell" ;
rdfs:comment "Type of presumptive precardiac cell that lie as paired primordia 30 to 45 degrees on either side of the dorsal midline of the embryo. As gastrulation proceeds, these migrate laterally, eventually fusing at the anterior ventral midline, where they differentiate into cardiac tissue. They give rise to the linear heart tube of the fused heart primordium and derive from the cardiac crescent." ;
rdfs:subClassOf obo:XAO_0005033 .
obo:XAO_0000242 a rdfs:Class ;
rdfs:label "mesonephric duct" ;
rdfs:comment "Duct that drains the mesonephros and connects it to the ureter." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_0005154 a rdfs:Class ;
rdfs:label "plasma membrane" ;
rdfs:comment "The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004558 a rdfs:Class ;
rdfs:label "lateral amygdala" ;
rdfs:comment "A nucleus comprising the lateral aspect of the amygdala, implicated in fear conditioning." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004108 a rdfs:Class ;
rdfs:label "regenerating tail" ;
rdfs:comment "A portion of tail tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0000113 a rdfs:Class ;
rdfs:label "embryo" ;
rdfs:comment "Anatomical entity that comprises the 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." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0004616 a rdfs:Class ;
rdfs:label "ventrolateral neural tube" ;
rdfs:comment "The ventrolateral regions of the neural tube, above to the floor plate region and encompassing structurally distinct interneurons (in lateral positions) and the more ventral motor neurons." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004587 a rdfs:Class ;
rdfs:label "striatum" ;
rdfs:comment "A region of the forebrain consisting of the caudate nucleus, putamen and fundus striati." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004335 a rdfs:Class ;
rdfs:label "m. orbitohyoideus" ;
rdfs:comment "Large, tapering muscle that originates on the muscular process and inserts on the ceratohyal." ;
rdfs:subClassOf obo:XAO_0004324 .
obo:XAO_0000236 a rdfs:Class ;
rdfs:label "duodenum" ;
rdfs:comment "The first part of the small intestine. At the junction of the stomach and the duodenum the alimentary canal is inflected. The duodenum first goes anteriorly for a short distance, turns dorsally, and eventually caudally, thus it is a U-shaped structure with two horizontal sections (a ventral and a dorsal one)." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005014 a rdfs:Class ;
rdfs:label "centrosome" ;
rdfs:comment "A structure comprising a core structure and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many cells, though it changes continually during the cell-division cycle." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004017 a rdfs:Class ;
rdfs:label "endochondral element" ;
rdfs:comment "A skeletal element that has the potential to participate in endochondral ossification, and may participate in intramembranous ossification." ;
rdfs:subClassOf obo:XAO_0004016 .
obo:XAO_0004468 a rdfs:Class ;
rdfs:label "organ cortex" ;
rdfs:comment "Multi-tissue structure that is the outermost layer of an organ." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000220 a rdfs:Class ;
rdfs:label "dermatome" ;
rdfs:comment "Somitic compartment that is a precursor of dermis, the cells of which become arranged in a single layer that blankets the myotome, possibly continuously (unsegmented) across somites." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004508 a rdfs:Class ;
rdfs:label "mandibular mesenchyme" ;
rdfs:comment "Mesenchyme that is part of a mandibular component." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0005002 a rdfs:Class ;
rdfs:label "multicellular anatomical structure" ;
rdfs:comment "An anatomical structure that has more than one cell as a part." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0000011 a rdfs:Class ;
rdfs:label "forebrain" ;
rdfs:comment "The part of the brain that is the anterior of its three primary divisions and that includes the telencephalon and diencephalon." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004388 a rdfs:Class ;
rdfs:label "retinal progenitor cell region" ;
rdfs:comment "Region of the ciliary marginal zone where retinal progenitor cells are located." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004287 a rdfs:Class ;
rdfs:label "vertebral centrum" ;
rdfs:comment "Skeletal element that surrounds the notochord." ;
rdfs:subClassOf obo:XAO_0004012 .
obo:XAO_0004423 a rdfs:Class ;
rdfs:label "trunk vasculature" ;
rdfs:comment "The blood vessels of the trunk region." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004576 a rdfs:Class ;
rdfs:label "nucleus of the diagonal band" ;
rdfs:comment "A brain structure that is part of the septal nuclear complex and is connected with the hippocampus, hypothalamus, and amygdala." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0003191 a rdfs:Class ;
rdfs:label "left atrium" ;
rdfs:comment "The chamber of the heart that receives blood from the lungs." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0000355 a rdfs:Class ;
rdfs:label "aortic arch 4" ;
rdfs:comment "The fourth in a series of paired arterial connections between the dorsal and ventral aortae, it lies within the 4th branchial arch. The paired aortic arch 4 arteries branch directly from the ventral aorta to the lateral dorsal aorta, and are retained as the branchial arteries providing circulation through the gills in the adult." ;
rdfs:subClassOf obo:XAO_0000341 .
obo:XAO_0005060 a rdfs:Class ;
rdfs:label "glomerular mesangial cell" ;
rdfs:comment "A type of smooth muscle-like pericyte that abuts and surrounds the filtration capillaries within the glomerulus." ;
rdfs:subClassOf obo:XAO_0003264 .
obo:XAO_0003210 a rdfs:Class ;
rdfs:label "humerus" ;
rdfs:comment "Either of the paired, elongate, cylindrical forelimb bones of endochondral origin that extend from the pectoral girdle (shoulders) to the elbows." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0005104 a rdfs:Class ;
rdfs:label "blastomere V1.1.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective ventral midline in the first tier of blastomeres. It contributes to epidermal and placodal derivatives including the epidermis, lens, cement gland, cranial ganglia, otic vesicle, neural crest, Rohon-Beard neurons, and spinal cord (but no other CNS structures). It also contributes to the pharyngeal mesoderm, heart, somites, pronephric kidney, lateral plate mesoderm and tail fin mesenchymes, and a few cells in the gut." ;
rdfs:subClassOf obo:XAO_0005115 .
obo:XAO_0003163 a rdfs:Class ;
rdfs:label "basal lamina" ;
rdfs:comment "Acellular anatomical structure that consists of a thin sheet of fibrous proteins that underlie and support the cells of an epithelium. It separates the cells of an epithelium from any underlying tissue." ;
rdfs:subClassOf obo:XAO_0003162 .
obo:XAO_0005422 a rdfs:Class ;
rdfs:label "septum" ;
rdfs:comment "A wall, dividing a cavity or structure into smaller ones." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000218 a rdfs:Class ;
rdfs:label "appendage" ;
rdfs:comment "An internal or external body part or prolongation that projects from, and is attached to, an organ or the main body of an organism." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0000442 a rdfs:Class ;
rdfs:label "supraorbital lateral line" ;
rdfs:comment "Lateral line situated along the dorsal margin of the eye." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0000388 a rdfs:Class ;
rdfs:label "posterior vena cava" ;
rdfs:comment "Vein that carries de-oxygenated blood from the posterior part of the body to the sinus venosus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004393 a rdfs:Class ;
rdfs:label "mucociliary epithelium" ;
rdfs:comment "Type of epithelium in the embryonic epidermis that is mucus-secreting and ciliated." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0000281 a rdfs:Class ;
rdfs:label "vegetal yolk mass" ;
rdfs:comment "Cell mass in the vegetal region of the embryo that will contribute to endoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000114 a rdfs:Class ;
rdfs:label "artery" ;
rdfs:comment "Any of the tubular branching vessels that carry blood from the heart through the body." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0000269 a rdfs:Class ;
rdfs:label "mouth primordium" ;
rdfs:comment "Anterior part of the embryonic alimentary canal that is formed as an invagination of the ectoderm and is the future mouth." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000064 a rdfs:Class ;
rdfs:label "heart" ;
rdfs:comment "A myogenic muscular organ found in the cardiovascular system. It is responsible for pumping blood throughout the blood vessels by repeated, rhythmic contractions. It is composed of cardiac muscle, which is an involuntary striated muscle tissue found only in this organ, and connective tissue. It is ultimately composed of three chambers (two atria and one ventricle), occupying a ventral position within the chest of the mature tadpole/frog." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003165 .
obo:XAO_0003123 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 7" ;
rdfs:comment "Compartment of trunk somite 7 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0003242 a rdfs:Class ;
rdfs:label "morula cell" ;
rdfs:comment "A cell of the early embryo at the developmental stage in which the blastomeres, resulting from repeated mitotic divisions of the fertilized ovum (zygote), form a compact cell mass." ;
rdfs:subClassOf obo:XAO_0003241 .
obo:XAO_0003232 a rdfs:Class ;
rdfs:label "acid secreting cell" ;
rdfs:comment "Any of the cell types of the digestive system that secrete amino acid peptides or polypeptides." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004442 a rdfs:Class ;
rdfs:label "mm. constrictores branchiales III primordium" ;
rdfs:comment "The presumptive cells of the constrictores branchiales III muscles." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004313 a rdfs:Class ;
rdfs:label "joint region" ;
rdfs:comment "Anatomical region at which two or more bones make contact and that includes some of the surrounding tissues of various types." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003029 a rdfs:Class ;
rdfs:label "mouth" ;
rdfs:comment "Cavity in which food is initially ingested and generally contains teeth, tongue and glands." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0003099 a rdfs:Class ;
rdfs:label "fourth ventricle" ;
rdfs:comment "Irregularly shaped cavity in the rhombencephalon, between the medulla oblongata, the pons, and the isthmus in front, and the cerebellum behind. It is continuous with the central canal of the cord below and with the cerebral aqueduct above, and through its lateral and median apertures it communicates with the subarachnoid space." ;
rdfs:subClassOf obo:XAO_0004602 .
obo:XAO_1000082 a rdfs:Class ;
rdfs:label "unfertilized egg stage" ;
rdfs:comment "Any of the stages of the developing or mature Xenopus female gamete." ;
rdfs:subClassOf obo:XAO_1000000 .
obo:XAO_0004491 a rdfs:Class ;
rdfs:label "hindlimb bud tip" ;
rdfs:comment "The apical region of a developing hindlimb bud which will form the autopod segment of the hindlimb." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005271 a rdfs:Class ;
rdfs:label "obsolete right part of branchial arch skeleton" .
obo:XAO_0004247 a rdfs:Class ;
rdfs:label "vertebral artery" ;
rdfs:comment "A major artery of the neck that branches from the subclavian arteries and merge to form the single midline basilar artery." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0000106 a rdfs:Class ;
rdfs:label "post-anal gut" ;
rdfs:comment "Tissue that is a temporary extension of the embryonic gut caudal to the cloaca." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004276 a rdfs:Class ;
rdfs:label "bone element" ;
rdfs:comment "Skeletal element that is composed of bone tissue." ;
rdfs:subClassOf obo:XAO_0004012 .
obo:XAO_0004570 a rdfs:Class ;
rdfs:label "medial pallium" ;
rdfs:comment "Subdivision of the pallium that is located in the medial position." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005222 a rdfs:Class ;
rdfs:label "antero-ventral region" ;
rdfs:comment "Anatomical region that overlaps the anterior and ventral regions of a body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004404 a rdfs:Class ;
rdfs:label "keratinocyte" ;
rdfs:comment "The predominant cell type in the epidermis, the primary function of which is the formation of a barrier against environmental damage." ;
rdfs:subClassOf obo:XAO_0003252 .
obo:XAO_1000025 a rdfs:Class ;
rdfs:label "NF stage 15" ;
rdfs:comment "Nieuwkoop and Faber stage 15, corresponding to an embryo of age 17 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Early neural fold stage. Presumptive cement gland faintly circumscribed. Anterior part of neural plate roundish. Neural folds distinct, except medio-rostrally; initial formation of sharp inner ridges on neural folds in rhombencephalic region. Length: 1.5 - 1.6 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004457 a rdfs:Class ;
rdfs:label "lateral line ganglion" ;
rdfs:comment "Ganglion that develops from a cranial ectodermal placode and contains sensory neurons that innervate a lateral line." ;
rdfs:subClassOf obo:XAO_0000027 .
obo:XAO_0000411 a rdfs:Class ;
rdfs:label "trunk somite 6" ;
rdfs:comment "The 4th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004627 a rdfs:Class ;
rdfs:label "ventral blood island border" ;
rdfs:comment "Blood vessel that is part of the ventral blood island." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0005003 a rdfs:Class ;
rdfs:label "larval intestinal epithelium" ;
rdfs:comment "Epithelium that covers the small and large intestine in the larval frog." ;
rdfs:subClassOf obo:XAO_0003200 , obo:XAO_0004008 .
obo:XAO_0003018 a rdfs:Class ;
rdfs:label "primary spermatogonium" ;
rdfs:comment "A germ cell that is a primordial spermatocyte in a male and that develops into secondary spermatogonia by mitotic division." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0004028 a rdfs:Class ;
rdfs:label "fibrocartilage" ;
rdfs:comment "Cartilage tissue intermediate between hyaline cartilage and dense connective tissue; contains of abundant collagen fibers; chondrocytes often arranged in columns." ;
rdfs:subClassOf obo:XAO_0000170 .
obo:XAO_0004264 a rdfs:Class ;
rdfs:label "zeugopod" ;
rdfs:comment "Limb segment that is the middle part of the limb (i.e. the radio-ulna of the forelimb, and the tarsus and tibia-fibula of the hindlimb, and surrounding tissues)." ;
rdfs:subClassOf obo:XAO_0004294 .
obo:XAO_0006020 a rdfs:Class ;
rdfs:label "early endosome" ;
rdfs:comment "A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000372 a rdfs:Class ;
rdfs:label "left lymph heart" ;
rdfs:comment "The leftmost of the two lymph hearts, pulsatile organs that are present in lower vertebrates and function to propel lymph into the venous system. Two bilaterally symmetrical lymph hearts can be seen adjacent to the somites 3 and 4 by NF stage 40, and can be seen beating by NF stage 43." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0005206 a rdfs:Class ;
rdfs:label "anterior side" ;
rdfs:comment "An anatomical region that is the entire part of an anatomical structure anterior to a transverse plane and bounded on one side by the same transverse plane." ;
rdfs:subClassOf obo:XAO_0005205 .
obo:XAO_0004435 a rdfs:Class ;
rdfs:label "m. transversus anterior primordium" ;
rdfs:comment "The presumptive cells of the transversus anterior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004346 a rdfs:Class ;
rdfs:label "mm. constrictores branchiales IV" ;
rdfs:comment "Muscle that arises on part of the chondrocranium and passes to the ventro-lateral region of the cerato-branchialia. It is a small muscle situated at the posterior end of the branchial skeleton." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0003152 a rdfs:Class ;
rdfs:label "immune system" ;
rdfs:comment "Anatomical system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymphoid tissue, lymphocytes including the B cells and T cells, and antibodies." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0004236 a rdfs:Class ;
rdfs:label "posterior hypothalamus" ;
rdfs:comment "Posterior part of the hypothalamus, given rise by the midanterior neural plate during forebrain morphogenesis." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003007 a rdfs:Class ;
rdfs:label "anatomical entity in vitro" ;
rdfs:comment "An experimentally manipulated tissue or portion of the developing embryo, that can be culture alone (in vitro)." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0004227 a rdfs:Class ;
rdfs:label "dorsal tegmentum" ;
rdfs:comment "Region of the mesencephalon that arises from a small area of the neural plate immediately adjacent and slightly anterior to the ventral tegmentum area." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000449 a rdfs:Class ;
rdfs:label "branchial arch 2" ;
rdfs:comment "The second pharyngeal/branchial arch; it arises as a thickening of the pharygeal wall between the first and second branchial clefts; contains the second aortic arch; forms part of the hyoid bone, tongue and facial musculature." ;
rdfs:subClassOf obo:XAO_0000099 .
obo:XAO_0004412 a rdfs:Class ;
rdfs:label "hindlimb digit 2" ;
rdfs:comment "The 2nd most posterior of the hind digits, consisting of a single metatarsal, 2 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003035 .
obo:XAO_0005293 a rdfs:Class ;
rdfs:label "maxillary nerve" ;
rdfs:comment "Cephalic nerve that innervates the maxillary sinus." ;
rdfs:subClassOf obo:XAO_0005309 .
obo:XAO_1000003 a rdfs:Class ;
rdfs:label "blastula stage" ;
rdfs:comment "Embryonic stage during which the solid morula acquires an internal cavity, comprising Nieuwkoop and Faber stages 7 to 9." ;
rdfs:subClassOf obo:XAO_1000012 .
obo:XAO_0004511 a rdfs:Class ;
rdfs:label "hindgut primordium" ;
rdfs:comment "The endoderm cells that are fated to become the hindgut." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004175 a rdfs:Class ;
rdfs:label "nasociliary artery" ;
rdfs:comment "The main artery of the olfactory region which arises from the cerebral artery at NF stage 41." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0000291 a rdfs:Class ;
rdfs:label "mesonephric mesenchyme" ;
rdfs:comment "The tissue made up of loosely connected mesenchymal cells in the mesonephros." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0000033 a rdfs:Class ;
rdfs:label "cement gland" ;
rdfs:comment "A simple mucus-secreting structure that is positioned at the front of the embryo, attaches the newly hatched embryo to a support before the hatchling can swim well or feed, and marks the anterior-most dorsal ectoderm." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0004339 a rdfs:Class ;
rdfs:label "m. transversus ventralis II" ;
rdfs:comment "Muscle that springs from the second branchial arch, meeting its opposite in a mid-ventral raphe." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0003145 a rdfs:Class ;
rdfs:label "basilar papilla" ;
rdfs:comment "A sensory structure in the lagenar portion of an amphibian's membranous labyrinth between the oval and round windows." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003185 a rdfs:Class ;
rdfs:label "anatomical direction" ;
rdfs:comment "Any spatial descriptor that describes the orientation of the anatomical features of an embryo." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0003237 a rdfs:Class ;
rdfs:label "cementoblast" ;
rdfs:comment "A cell of ectomesenchymal origin concerned with the formation of the layer of cementum on the roots of teeth." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004474 a rdfs:Class ;
rdfs:label "periotic region" ;
rdfs:comment "Anatomical region that surrounds the otic vesicle." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004592 a rdfs:Class ;
rdfs:label "ventral hypothalamic nucleus" ;
rdfs:comment "Nucleus that is located ventrally in the hypothalamus." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0000157 a rdfs:Class ;
rdfs:label "testis" ;
rdfs:comment "Reproductive organ that produces and releases sperm." ;
rdfs:subClassOf obo:XAO_0003146 .
obo:XAO_0000072 a rdfs:Class ;
rdfs:label "dorsal marginal zone" ;
rdfs:comment "Marginal zone that is a key embryonic tissue region of the early gastrula stage embryo and that houses the Spemann-Mangold organizer." ;
rdfs:subClassOf obo:XAO_0000068 .
obo:XAO_0003043 a rdfs:Class ;
rdfs:label "primordium" ;
rdfs:comment "An embryonic structure that is the rudiment or commencement of a part or organ." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004320 a rdfs:Class ;
rdfs:label "mesenchymal stem cell" ;
rdfs:comment "Multipotent stromal cell that can differentiate into a variety of cell types, including: osteoblasts/osteocytes (bone cells), chondroblasts/chondrocytes (cartilage cells), and adipoblasts/adipocytes (fat cells)." ;
rdfs:subClassOf obo:XAO_0003054 .
obo:XAO_0004269 a rdfs:Class ;
rdfs:label "anterodorsal lateral line placode" ;
rdfs:comment "Lateral line placode that gives rise to the anterodorsal lateral line nerve." ;
rdfs:subClassOf obo:XAO_0000440 .
obo:XAO_0003257 a rdfs:Class ;
rdfs:label "myelin accumulating cell" ;
rdfs:comment "A cell that is specialized to accumulate myelin." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000204 a rdfs:Class ;
rdfs:label "peripheral nerve" ;
rdfs:comment "Any nerve outside the brain or spinal cord that connects with peripheral receptors or effectors." ;
rdfs:subClassOf obo:XAO_0003047 .
obo:XAO_0004554 a rdfs:Class ;
rdfs:label "granule cell layer of the cerebellum" ;
rdfs:comment "The innermost layer of the cerebellar cortex, containing densely packed small neurons, mostly granule cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003130 a rdfs:Class ;
rdfs:label "myotome of trunk somite 11" ;
rdfs:comment "Compartment of trunk somite 11 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0004201 a rdfs:Class ;
rdfs:label "odontode tissue" ;
rdfs:comment "Skeletal tissue that is avascular tubular mineralized matrix, primarily made of dentine that is deposited by odontoblasts that are excluded from the matrix; develops from pre-dentine tissue." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_0004146 a rdfs:Class ;
rdfs:label "hemangioblast" ;
rdfs:comment "A pluripotent cell in the ventral blood island that can give rise to mesenchymal cells including erythrocytes and endothelial cells." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000187 a rdfs:Class ;
rdfs:label "dorsolateral placode region" ;
rdfs:comment "Lateral neurogenic placode region positioned dorsally to the epibranchial placodes, and that includes the lateral line placodes, the otic placode and the trigeminal placode." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000172 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:XAO_0003040 .
obo:XAO_0005318 a rdfs:Class ;
rdfs:label "cortical actin cytoskeleton" ;
rdfs:comment "The portion of the actin cytoskeleton, comprising filamentous actin and associated proteins, that lies just beneath the plasma membrane." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004151 a rdfs:Class ;
rdfs:label "tail vasculature" ;
rdfs:comment "Posterior vascular precursor cells of the tail region." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0005082 a rdfs:Class ;
rdfs:label "lampbrush chromosome" ;
rdfs:comment "A special form of chromosome found in growing oocytes, transforming into the lampbrush form because of an active transcription of many genes, and organized into a series of chromomeres with large chromatin loops extended laterally." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004135 a rdfs:Class ;
rdfs:label "rhombic lip" ;
rdfs:comment "The interface between the dorsal neuroepithelium and the roof plate of the fourth ventricle. The source of a number of migratory neuron populations of the hindbrain." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0005093 a rdfs:Class ;
rdfs:label "blastomere V1.2" ;
rdfs:comment "Blastomere which lies in the animal hemisphere lateral to V1.1 at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005115 .
obo:XAO_0003180 a rdfs:Class ;
rdfs:label "branchial arch skeleton" ;
rdfs:comment "Skeletal and cartilaginous elements of the branchial arches; the last five of the set of seven pharyngeal arches; generally branchial arch no. 1 is the first branchial arch, or the third pharyngeal arch, but some authors do not follow this convention." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0000377 a rdfs:Class ;
rdfs:label "capillary system of liver" ;
rdfs:comment "The smallest of the blood vessels, parts of the microcirculation, of the liver." ;
rdfs:subClassOf obo:XAO_0000116 .
obo:XAO_0005072 a rdfs:Class ;
rdfs:label "skin mucous gland" ;
rdfs:comment "A mucous gland that is part of the skin." ;
rdfs:subClassOf obo:XAO_0005071 , obo:XAO_0005073 .
obo:XAO_0004281 a rdfs:Class ;
rdfs:label "median fin" ;
rdfs:comment "Fin that is an unpaired fin located in the sagittal plane of the organism." ;
rdfs:subClassOf obo:XAO_0000002 .
obo:XAO_0005213 a rdfs:Class ;
rdfs:label "apical region" ;
rdfs:comment "Anatomical region located on the apical end on the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0005126 a rdfs:Class ;
rdfs:label "dorsal foregut" ;
rdfs:comment "The dorsal part of the foregut." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004186 a rdfs:Class ;
rdfs:label "secondary heart field" ;
rdfs:comment "The population of cells located in the splanchnic mesoderm that contribute to the formation of the spiral septum of the outflow tract of the embryonic heart; it is located anterior to the primary heart field." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003264 a rdfs:Class ;
rdfs:label "pericyte" ;
rdfs:comment "A slender, contractile, mesenchymal-like cell found in close association with capillary walls. They are relatively undifferentiated and may become fibroblasts, macrophages, or smooth muscle cells." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004034 a rdfs:Class ;
rdfs:label "mineralized extracellular matrix" ;
rdfs:comment "Extracellular matrix that is mineralized." ;
rdfs:subClassOf obo:XAO_0004032 .
obo:XAO_0000258 a rdfs:Class ;
rdfs:label "ovary" ;
rdfs:comment "Either of paired female reproductive organs involved in production of ova and female sex hormones." ;
rdfs:subClassOf obo:XAO_0003146 .
obo:XAO_0004361 a rdfs:Class ;
rdfs:label "ceratobranchial III" ;
rdfs:comment "The cartilaginous element below the epibranchial in branchial arch 3." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_1000075 a rdfs:Class ;
rdfs:label "NF stage 63" ;
rdfs:comment "Nieuwkoop and Faber stage 63, corresponding to a tadpole of age about 51 days at 22-24 Celsius and having the following external morphological criteria: Head narrower than trunk. Tentacles mostly disappeared. Corner of mouth at level of caudal border of eye. \"Larval aorta\" and thymus gland no longer externally visible. Operculum closed. Adult skin areas on abdomen and lower jaw separated by narrow band of larval skin. Forelimb at level of anterior half of heart. Fin mostly perforated near anus. Tail still slightly longer than body." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004360 a rdfs:Class ;
rdfs:label "ceratobranchial II" ;
rdfs:comment "The cartilaginous element below the epibranchial in branchial arch 2." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0005158 a rdfs:Class ;
rdfs:label "pylorus" ;
rdfs:comment "The stomach tissue region which surrounds and controls the distal outlet of the stomach, which opens into the duodenum, and contains the pyloric glands." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004292 a rdfs:Class ;
rdfs:label "wedge region" ;
rdfs:comment "Region of the oocyte vegetal cortex that contains a subdomain of ER organized on top of the mitochondrial cloud and where localization of Vg1 mRNA takes place." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004580 a rdfs:Class ;
rdfs:label "dorsal funiculus" ;
rdfs:comment "Region of spinal cord white matter that is dorsal and medial to the dorsal root." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000071 a rdfs:Class ;
rdfs:label "dorso-lateral marginal zone" ;
rdfs:comment "Region of the marginal zone extending from the dorsal to lateral surface." ;
rdfs:subClassOf obo:XAO_0000068 .
obo:XAO_0004099 a rdfs:Class ;
rdfs:label "amacrine cell" ;
rdfs:comment "Interneuron of the retina. They integrate, modulate, and interpose a temporal domain in the visual message presented to the retinal ganglion cells, with which they synapse in the inner plexiform layer. They lack large axons." ;
rdfs:subClassOf obo:XAO_0004267 .
obo:XAO_0001016 a rdfs:Class ;
rdfs:label "abdominal myoblast" ;
rdfs:comment "The myoblast that forms the muscles of the anterior abdominal walls." ;
rdfs:subClassOf obo:XAO_0003015 .
obo:XAO_0004242 a rdfs:Class ;
rdfs:label "ischiadic artery" ;
rdfs:comment "The accompanying artery of the ischiadic nerve." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004581 a rdfs:Class ;
rdfs:label "posterodorsal tegmental nucleus" ;
rdfs:comment "Nucleus located posterodorsally in the midbrain tegmentum." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004523 a rdfs:Class ;
rdfs:label "enteric neuron" ;
rdfs:comment "Any of the neurons specific to the gastrointestinal system. Enteric neurons are embedded the lining of the esophagus, stomach, small and large intestines and the cloaca." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0004212 a rdfs:Class ;
rdfs:label "glossopharyngeal epibranchial placode" ;
rdfs:comment "The central of the three epibranchial placodes, associated with the 2nd pharyngeal cleft and contributing to the distal ganglia of cranial nerve IX (glossopharyngeal nerve)." ;
rdfs:subClassOf obo:XAO_0000284 .
obo:XAO_0003262 a rdfs:Class ;
rdfs:label "oxygen accumulating cell" ;
rdfs:comment "A cell that is specialized to accumulate oxygen." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000326 a rdfs:Class ;
rdfs:label "left spleen primordium" ;
rdfs:comment "Primordium of the spleen, which goes on to form the spleen proper, while the right splenic promordium degenerates." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000047 a rdfs:Class ;
rdfs:label "notoplate" ;
rdfs:comment "Region of the neural plate overlying the notochord." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005110 a rdfs:Class ;
rdfs:label "blastomere V2.2.1" ;
rdfs:comment "Blastomere which lies lateral to blastomere V2.1.1, in the fourth tier of blastomeres. It contributes cells to the epidermis and neural crest, spinal cord, somites, foregut, hindgut, and fewer cells to the head, pharyngeal mesoderm and proctodeum." ;
rdfs:subClassOf obo:XAO_0005114 .
obo:XAO_0003118 a rdfs:Class ;
rdfs:label "myotome of trunk somite 6" ;
rdfs:comment "Compartment of trunk somite 6 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0004464 a rdfs:Class ;
rdfs:label "rhombomere R1" ;
rdfs:comment "The most anterior segment of the developing hindbrain." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0003036 a rdfs:Class ;
rdfs:label "forelimb digit" ;
rdfs:comment "Any of the 4 digits that are the most distal part of a forelimb, each digit consisting of a single metatarsal and 2-3 phalanges. Xenopus forelimb digits are numbered 2-5, with no digit number 1." ;
rdfs:subClassOf obo:XAO_0003032 .
obo:XAO_0004612 a rdfs:Class ;
rdfs:label "secretory epithelial cell" ;
rdfs:comment "Type of epithelial cell that secretes a macromolecule or ion product. In many epithelia, occasional specialized secretory cells are scattered among other, non-secretory cells." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0000430 a rdfs:Class ;
rdfs:label "Rathke's pouch" ;
rdfs:comment "A depression in the roof of the developing mouth in front of the buccopharyngeal membrane. It gives rise to the anterior pituitary (adenohypophysis), a part of the endocrine system." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000053 a rdfs:Class ;
rdfs:label "head mesoderm" ;
rdfs:comment "The mesoderm of the head." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000166 a rdfs:Class ;
rdfs:label "adrenal medulla" ;
rdfs:comment "Part of the adrenal gland, located at the center of the gland and surrounded by the adrenal cortex. It is the innermost part of the adrenal gland, consisting of cells that secrete epinephrine, norepinephrine, and a small amount of dopamine in response to stimulation by sympathetic preganglionic neurons. Composed mainly of hormone-producing chromaffin cells, it is the principal site of the conversion of the amino acid tyrosine into the catecholamines adrenaline (epinephrine), noradrenaline (norepinephrine), and dopamine." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000307 a rdfs:Class ;
rdfs:label "anterior neural tube" ;
rdfs:comment "Anterior segment of the neural tube, which develops into the forebrain and midbrain." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0003054 a rdfs:Class ;
rdfs:label "stem cell" ;
rdfs:comment "A relatively undifferentiated cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized cells." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0001013 a rdfs:Class ;
rdfs:label "musculature of face" ;
rdfs:comment "Muscle tissue forming the facial muscles, a group of striated muscles innervated by the facial nerves." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_1000086 a rdfs:Class ;
rdfs:label "oocyte stage IV" ;
rdfs:comment "The stage of the developing female gamete that corresponds to the establishment of polarization along the animal-vegetal axis of the gamete." ;
rdfs:subClassOf obo:XAO_1000082 .
obo:XAO_0004124 a rdfs:Class ;
rdfs:label "atrioventricular canal endocardium" ;
rdfs:comment "Endocardium that is part of the atrioventricular canal." ;
rdfs:subClassOf obo:XAO_0000066 .
obo:XAO_0005169 a rdfs:Class ;
rdfs:label "left-right organizer primordium" ;
rdfs:comment "The presumptive cells of the organizing region which is formed by the posterior layer of the gastrocoel roof plate during early neurulation." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0005426 a rdfs:Class ;
rdfs:label "tracheoesophageal fold" ;
rdfs:comment "Any of the longitudinal folds in the respiratory diverticulum that fuse to form the tracheoesophageal septum, which separates the esophagus from the trachea." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004350 a rdfs:Class ;
rdfs:label "m. dilatator laryngis" ;
rdfs:comment "Muscle that arises from the edge of levator arcus branchialis IV and inserts on the arytenoid cartilage and the cricoid ring." ;
rdfs:subClassOf obo:XAO_0004351 .
obo:XAO_0000318 a rdfs:Class ;
rdfs:label "glomus" ;
rdfs:comment "Multi-tissue structure that is the filtration unit of the pronephric kidney. A glomus is a glomerulus that spans more than one body segment. It is the vascularized filter of the pronephric kidney. Blood is filtered through the glomus and the filtrate deposited into the coelom early in development, or the nephrocoel later in development. The glomus contains podocytes with well developed foot processes that are anatomically indistinguishable from the podocytes of adult glomeruli. The two glomera are linked via a narrow bridge called the glomeral nexus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004231 a rdfs:Class ;
rdfs:label "barbel" ;
rdfs:comment "A single long structure at each corner of the mouth that has muscle fibers attached to an internal cartilaginous support and that is mobile." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0003246 a rdfs:Class ;
rdfs:label "electrically active cell" ;
rdfs:comment "A cell whose function is determined by the generation or the reception of an electric signal." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004000 a rdfs:Class ;
rdfs:label "duct" ;
rdfs:comment "A tube shaped portion of tissue lined with epithelial cells that collects secretions and routes them to their destination." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000399 a rdfs:Class ;
rdfs:label "tendon fibroblast" ;
rdfs:comment "An elongated fibroblast type cell, the cytoplasm of which is stretched between the collagen fibres of the tendon." ;
rdfs:subClassOf obo:XAO_0003017 .
obo:XAO_0004522 a rdfs:Class ;
rdfs:label "premigratory neural crest cell" ;
rdfs:comment "Cell that is part of the neural crest region of the neuroepithelium, prior to migration." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005071 a rdfs:Class ;
rdfs:label "skin gland" ;
rdfs:comment "A gland that is part of the skin." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0000327 a rdfs:Class ;
rdfs:label "right spleen primordium" ;
rdfs:comment "Transient splenic primordia that degenerates by NF stage 40." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004380 a rdfs:Class ;
rdfs:label "suprarostral plate" ;
rdfs:comment "Cartilaginous element that comprises a crescent-shaped plate that supports the tentacular cartilage in the upper jaw." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0005121 a rdfs:Class ;
rdfs:label "prime meridian" ;
rdfs:comment "Embryonic region which is specified to form the head of the embryo." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0005307 a rdfs:Class ;
rdfs:label "posterior endomesoderm" ;
rdfs:comment "Posterior region of the developing endomesoderm." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_1000093 a rdfs:Class ;
rdfs:label "adult frog stage" ;
rdfs:comment "Xenopus developmental stage that corresponds to a fully formed, mature animal." ;
rdfs:subClassOf obo:XAO_1000095 .
obo:XAO_0004164 a rdfs:Class ;
rdfs:label "intersomitic vein" ;
rdfs:comment "Type of vein that sprouts from the posterior cardinal vein, growing dorsally between the somites, and then joining, and draining the dorsal longitudinal anastomosing vessel." ;
rdfs:subClassOf obo:XAO_0004075 .
obo:XAO_0003102 a rdfs:Class ;
rdfs:label "transverse process" ;
rdfs:comment "Any of the projections on each side of the vertebra from the point where the neural arch lamina joins the pedicel for the articulation with the head of a single-headed rib or the upper head of a double-headed rib. Also called diapophyses. They provide surfaces for the attachment of muscles. In anurans, the term transverse process is used in reference to the processes associated with the presacral and postsacral vertebrae." ;
rdfs:subClassOf obo:XAO_0004020 .
obo:XAO_0000304 a rdfs:Class ;
rdfs:label "lateral" ;
rdfs:comment "Spatial concept pertaining to being situated at or extending to the side." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0004270 a rdfs:Class ;
rdfs:label "hepato-pancreatic progenitor cell" ;
rdfs:comment "Any of a field of cells in the posterior section of the foregut that will give rise to the liver bud and dorsal and ventral pancreatic buds." ;
rdfs:subClassOf obo:XAO_0005033 .
obo:XAO_0004083 a rdfs:Class ;
rdfs:label "rhombomere R5" ;
rdfs:comment "The 5th segment of the developing hindbrain, between rhombomeres r4 and r6, and dorsal to branchial arch 3." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0000090 a rdfs:Class ;
rdfs:label "endoderm" ;
rdfs:comment "Primary germ layer that lies remote from the surface of the embryo and gives rise to internal tissues such as gut." ;
rdfs:subClassOf obo:XAO_0003011 .
obo:XAO_0004565 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:XAO_0004609 .
obo:XAO_0005132 a rdfs:Class ;
rdfs:label "astrocyte end-foot" ;
rdfs:comment "The terminal process of an astrocyte." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000214 a rdfs:Class ;
rdfs:label "auditory ossicle" ;
rdfs:comment "Any of the three tiny bones of the inner ear (columella or stapes, the sacculus and the utriculus) suspended in the otic capsule." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_0005061 a rdfs:Class ;
rdfs:label "glomerular epithelial cell" ;
rdfs:comment "An epithelial cell that is part of the glomus." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0000102 a rdfs:Class ;
rdfs:label "visceral pouch 1" ;
rdfs:comment "First of the pharyngeal (endodermal) evaginations between the visceral arches from which the Eustachian tube is derived; pouches 2-4 open as gill slits." ;
rdfs:subClassOf obo:XAO_0000282 .
obo:XAO_0004496 a rdfs:Class ;
rdfs:label "ilium" ;
rdfs:comment "Either of the paired bones that are the dorsal-most and largest bones of the pelvic girdle. They begin to connect to the sacral vertebra (9th vertebra) at NF stage 59." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0004072 a rdfs:Class ;
rdfs:label "suprachiasmatic nucleus" ;
rdfs:comment "The ventral region of the alar hypothalamus. It is a diencephalic nucleus that is part of the preoptic area and is ventrolateral to the caudal parvocellular preoptic nucleus." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0005266 a rdfs:Class ;
rdfs:label "thrombocyte" ;
rdfs:comment "A cell type that produces platelets and coagulating factors that react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot. In amphibians, embryonic and adult thrombocytes have different origins and potentially different gene expression markers." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004446 a rdfs:Class ;
rdfs:label "m. constrictor laryngis primordium" ;
rdfs:comment "The presumptive cells of the constrictor laryngis muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004453 a rdfs:Class ;
rdfs:label "m. obliquus inferior primordium" ;
rdfs:comment "The presumptive cells of the obliquus inferior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000039 a rdfs:Class ;
rdfs:label "obsolete anatomical site" .
obo:XAO_0004480 a rdfs:Class ;
rdfs:label "forelimb digit 4" ;
rdfs:comment "The second most anterior digit of a forelimb, consisting of a single metatarsal, 3 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003036 .
obo:XAO_0004223 a rdfs:Class ;
rdfs:label "posterior lateral line placode" ;
rdfs:comment "Lateral line placode that gives rise to the posterior lateral line nerve." ;
rdfs:subClassOf obo:XAO_0000440 .
obo:XAO_0004623 a rdfs:Class ;
rdfs:label "sclerotome of tail somite 18" ;
rdfs:comment "Compartment of tail somite 18 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004162 a rdfs:Class ;
rdfs:label "pulmonary artery" ;
rdfs:comment "Type of artery that carries blood from the heart to the lungs. They are the only arteries that carry deoxygenated blood. Develops from aortic arch 6." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0003025 a rdfs:Class ;
rdfs:label "trunk" ;
rdfs:comment "Organism subdivision that is the part of the body posterior to the head and anterior to the tail." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0000225 a rdfs:Class ;
rdfs:label "trigeminal placode" ;
rdfs:comment "The ectodermal precursor of the trigeminal ganglion. The profundal and the trigeminal ganglia are separate distally but fused at their proximal end as they condense around NF stage 24. The trigeminal placode gives rise to the sensory neurons of the ophthalmic and maxillomandibular lobes of cranial nerve V." ;
rdfs:subClassOf obo:XAO_0004620 .
obo:XAO_0000288 a rdfs:Class ;
rdfs:label "early proximal tubule" ;
rdfs:comment "Portion of the pronephric tubule that is immediately anterior to the late proximal tubule." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000285 a rdfs:Class ;
rdfs:label "pronephric nephron" ;
rdfs:comment "The structure that is the basic functional unit of the pronephros." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005202 a rdfs:Class ;
rdfs:label "anterior-posterior axis" ;
rdfs:comment "An axis that extends through an organism from head end to opposite end of body or tail." ;
rdfs:subClassOf obo:XAO_0005200 .
obo:XAO_0004485 a rdfs:Class ;
rdfs:label "neuroendocrine cell" ;
rdfs:comment "An endocrine cell that has the specialized function to produce and secrete hormones in response to neuronal signals." ;
rdfs:subClassOf obo:XAO_0003247 .
obo:XAO_0000405 a rdfs:Class ;
rdfs:label "head somite 4" ;
rdfs:comment "Transient occipital somite that exists from NF stages 19 to late 30's." ;
rdfs:subClassOf obo:XAO_0000313 .
obo:XAO_0003226 a rdfs:Class ;
rdfs:label "optic tectum" ;
rdfs:comment "Structure that is the anterodorsal-most region of the midbrain and is responsible for auditory and visual reflexes." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005282 a rdfs:Class ;
rdfs:label "yolk platelet" ;
rdfs:comment "An organelle that contains yolk for consumption during embryogenesis." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003107 a rdfs:Class ;
rdfs:label "myotome of head somite 4" ;
rdfs:comment "Compartment of head somite 4 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0000022 a rdfs:Class ;
rdfs:label "roof plate" ;
rdfs:comment "Organizing center located at the dorsal midline of the neural tube that influences the development of the nervous system, controlling the specification and differentiation of dorsal neuronal cell types." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000259 a rdfs:Class ;
rdfs:label "paraxial mesoderm" ;
rdfs:comment "Area of mesoderm at either side of the midline embryonic notochord that, on segmentation, forms the paired somites." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000422 a rdfs:Class ;
rdfs:label "tail somite 14" ;
rdfs:comment "The 12th somite located posterior to the head. This somite is resorbed at metamorphosis." ;
rdfs:subClassOf obo:XAO_0003143 .
obo:XAO_0005233 a rdfs:Class ;
rdfs:label "ionocyte, beta subtype" ;
rdfs:comment "One of the two types of proton-secreteing cells (PSC) in amphibian skin, which play an important role in ion transport, beta-PSCs are characterised by expression of pendrin and localization of the H+v-ATPase cytosolically or basolaterally in the plasma membrane." ;
rdfs:subClassOf obo:XAO_0004085 .
obo:XAO_0003156 a rdfs:Class ;
rdfs:label "natural killer cell" ;
rdfs:comment "A lymphocyte that can spontaneously kill a variety of target cells without prior antigenic activation via germline encoded activation receptors and also regulate immune responses via cytokine release and direct contact with other cells." ;
rdfs:subClassOf obo:XAO_0003157 .
obo:XAO_0004439 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium III primordium" ;
rdfs:comment "The presumptive cells of the levator arcuum branchialium III muscles." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0003196 a rdfs:Class ;
rdfs:label "olfactory system" ;
rdfs:comment "The sensory system used for olfaction (the sense of smell)." ;
rdfs:subClassOf obo:XAO_0003194 .
obo:XAO_0005137 a rdfs:Class ;
rdfs:label "monociliated cell" ;
rdfs:comment "A ciliated cell that has a single cilium." ;
rdfs:subClassOf obo:XAO_0005017 .
obo:XAO_0004428 a rdfs:Class ;
rdfs:label "m. levator mandibulae articularis primordium" ;
rdfs:comment "The presumptive cells of the levator mandibulae articularis muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000314 a rdfs:Class ;
rdfs:label "trunk somite" ;
rdfs:comment "Any of the somites that are posterior to the head and anterior to the tail." ;
rdfs:subClassOf obo:XAO_0000058 .
obo:XAO_0003148 a rdfs:Class ;
rdfs:label "obsolete germ line cell" .
obo:XAO_0004527 a rdfs:Class ;
rdfs:label "olfactory sensory neuron" ;
rdfs:comment "Sensory neuron responsible for detection of odorants." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0004118 a rdfs:Class ;
rdfs:label "stage V oocyte" ;
rdfs:comment "A developing female gamete that is at the late vitellogenic stage." ;
rdfs:subClassOf obo:XAO_0000256 .
obo:XAO_0003189 a rdfs:Class ;
rdfs:label "distal" ;
rdfs:comment "Spatial concept denoting a part of the body that is farther away from the center of the body than another part." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0005097 a rdfs:Class ;
rdfs:label "blastomere D1.1.2" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline, posterior to its sister cell, blastomere D1.1.1, in the second tier of blastomeres. It contributes cells to a variety of tissues and organs, including the stomodeum, retina, epidermis, lens, cranial ganglia, epibranchial placodes, neural crest, brain, spinal cord, gut, liver, pharynx, somites, and archenteron roof." ;
rdfs:subClassOf obo:XAO_0005113 .
obo:XAO_0006003 a rdfs:Class ;
rdfs:label "cell body" ;
rdfs:comment "The portion of a cell bearing surface projections such as axons, dendrites, cilia, or flagella that includes the nucleus, but excludes all cell projections." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004131 a rdfs:Class ;
rdfs:label "lateral crista" ;
rdfs:comment "Horizontal (lateral) patch of cristae/sensory epithelia cells of the inner ear." ;
rdfs:subClassOf obo:XAO_0004138 .
obo:XAO_0003047 a rdfs:Class ;
rdfs:label "nerve" ;
rdfs:comment "Portion of tissue that consists of a fasciculated group of axons." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004591 a rdfs:Class ;
rdfs:label "ventral habenular nucleus" ;
rdfs:comment "Cell mass in the caudal and ventral aspect of the dorsal thalamus adjoining the pineal gland." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_1000047 a rdfs:Class ;
rdfs:label "NF stage 32" ;
rdfs:comment "Nieuwkoop and Faber stage 32, corresponding to an embryo of age 1 day, 16 hr at 22-24 Celsius and having the following external morphological criteria: Eye cup horse-shoe-shaped, standing out distinctly. Length of tail bud about 1.5 times its breadth. Length: 4.5 - 5.1 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004338 a rdfs:Class ;
rdfs:label "m. transversus anterior" ;
rdfs:comment "Muscle situated between the planum hypobranchiale and the basihyobranchial, presumably to stabilize the connection between these elements." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0000349 a rdfs:Class ;
rdfs:label "larval aorta" ;
rdfs:comment "The aorta of a postembryonic, hatched or immature tadpole, prior to metamorphosis." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004152 a rdfs:Class ;
rdfs:label "head vasculature" ;
rdfs:comment "The blood vessels of the head region." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000130 a rdfs:Class ;
rdfs:label "small intestine" ;
rdfs:comment "A part of the alimentary system and principal organ of digestion, comprising the duodenum and ileum and characterized by longitudinal folds. In the tadpole it is a long simple tube with a single layer of cuboidal epithelial cells." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004597 a rdfs:Class ;
rdfs:label "neuromere" ;
rdfs:comment "A metameric segment of the central nervous system." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0000440 a rdfs:Class ;
rdfs:label "lateral line placode" ;
rdfs:comment "Thickened placodal areas located anterior and posterior to the otic vesicle. There are 5 distinct lateral line placodes, each giving rise to a single lateral line nerve that will innervate lateral line hair cells and convey information on motion to the adjacent hindbrain." ;
rdfs:subClassOf obo:XAO_0004620 .
obo:XAO_0005170 a rdfs:Class ;
rdfs:label "left-right organizer" ;
rdfs:comment "Region which is formed by the posterior layer of the gastrocoel roof plate during neurulation and has functionality in determining organ and axis symmetry." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000124 a rdfs:Class ;
rdfs:label "blood" ;
rdfs:comment "The fluid that circulates in the heart, arteries, capillaries, and veins carrying nourishment and oxygen to and bringing away waste products from all parts of the animal." ;
rdfs:subClassOf obo:XAO_0004001 .
obo:XAO_0000295 a rdfs:Class ;
rdfs:label "central endoderm" ;
rdfs:comment "The portion of endoderm between dorsal and ventral blastopore lips, and extending towards to the blastocoel." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000036 a rdfs:Class ;
rdfs:label "NF stage 20" ;
rdfs:comment "Nieuwkoop and Faber stage 20, corresponding to an embryo of age 21 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Neural folds fused, suture still present. The two eye anlagen showing through dumb-bell-shaped, eyes hardly protruding. Beginning of stretching of embryos. Lateral outline flat. Length: 1.7 - 1.8 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000333 a rdfs:Class ;
rdfs:label "mesonephric early distal tubule" ;
rdfs:comment "The mesonephric equivalent of the ascending limb, or straight distal segment, of metanephric nephrons." ;
rdfs:subClassOf obo:XAO_0000148 .
obo:XAO_0003159 a rdfs:Class ;
rdfs:label "thymocyte" ;
rdfs:comment "An immature T cell located in the thymus." ;
rdfs:subClassOf obo:XAO_0003155 .
obo:XAO_0000146 a rdfs:Class ;
rdfs:label "glomerulus" ;
rdfs:comment "A tuft of capillaries found in a Bowman's capsule in which waste products are filtered from the blood and urine formation is initiated." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004092 a rdfs:Class ;
rdfs:label "preplacodal ectoderm" ;
rdfs:comment "A thick, U-shaped primordium positioned at the border of the future epidermis and the neural plate/neural crest forming regions, in the neural stage embryo. This field of naive ectoderm is subdivided into 3 domains, each with distinct gene expression profiles: the anterior PPE (bottom of the U), the lateral PPE (the curves of the U), and the posterior PPE (arms of the U and adjacent to the neural crest/neural plate border). The PPE differentiates into the sensory placodes, which in turn form the adenohypophysis/anterior pituitary gland and sensory organs (such as the olfactory epithelium, lens, trigeminal nerves, epibranchial nerves, otic vesicles and lateral lines)." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004112 a rdfs:Class ;
rdfs:label "retinal rod cell" ;
rdfs:comment "One of the two photoreceptor cell types of the retina. In rods the photopigment is in stacks of membranous disks separate from the outer cell membrane. Rods are more sensitive to light than cones, but rod mediated vision has less spatial and temporal resolution than cone vision." ;
rdfs:subClassOf obo:XAO_0004110 .
obo:XAO_0001017 a rdfs:Class ;
rdfs:label "connective tissue" ;
rdfs:comment "Portion of tissue that consists of mesodermally derived cells and intercellular matrix composed of protein fibers and carbohydrates, which supports, ensheathes and binds together other tissues." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005008 a rdfs:Class ;
rdfs:label "cilium" ;
rdfs:comment "Specialized protrusion of a cell composed of microtubules and serving a role in intercellular signaling." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000437 a rdfs:Class ;
rdfs:label "death" ;
rdfs:comment "Xenopus developmental stage that corresponds to the end of the animal's life." ;
rdfs:subClassOf obo:XAO_1000000 .
obo:XAO_0006041 a rdfs:Class ;
rdfs:label "adipocyte" ;
rdfs:comment "Cell type that primarily composes adipose tissue, specialized in storing energy as fat." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004142 a rdfs:Class ;
rdfs:label "vestibulocochlear ganglion" ;
rdfs:comment "Ganglion that provides afferent innervation for hair cells associated with both the auditory and vestibular components of the inner ear. As the otic placode invaginates into a cup neuroblasts delaminate from the anterior ventral aspect of the otic epithelium to give rise to neurons of the vestibulocochlear (statoacoustic) ganglion of cranial nerve VIII." ;
rdfs:subClassOf obo:XAO_0000209 .
obo:XAO_0003080 a rdfs:Class ;
rdfs:label "urostyle" ;
rdfs:comment "Skeletal element in the midline of the pelvic girdle that arises from somites 10-13. It is a rodlike caudal bony structure unique to anurans that lies within a compartment formed by the elongated, anteriorly oriented pelvic girdle. It is formed by the fusion of the neural arches of the 10th-13th vertebrae, and the posterior-most remnants of the hypochord. Timing of complete ossification varies between NF stages 62 and 66." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_0005086 a rdfs:Class ;
rdfs:label "blastomere V1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective ventral midline of the animal hemisphere at the eight-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0003208 a rdfs:Class ;
rdfs:label "metacarpus" ;
rdfs:comment "Each of the bones forming the part of the hand between the fingers and the wrist." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_0000408 a rdfs:Class ;
rdfs:label "trunk somite 3" ;
rdfs:comment "The 1st somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004101 a rdfs:Class ;
rdfs:label "optic tract" ;
rdfs:comment "Diencephalic white matter (tract) that is composed of retinal ganglion cell axons after which they have passed through the optic chiasm." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005501 a rdfs:Class ;
rdfs:label "digestive tract" ;
rdfs:comment "A tube extending from the mouth to the cloacal sphincter." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005019 a rdfs:Class ;
rdfs:label "paired dorsal aorta" ;
rdfs:comment "The embryonic right and left aortas that develop in parallel with the heart and gain access to it via the aortic arches. Later the paired dorsal aortic anlagen unite and finally form the unpaired descending aorta of the adult." ;
rdfs:subClassOf obo:XAO_0003010 .
obo:XAO_0004417 a rdfs:Class ;
rdfs:label "claw of hindlimb digit 1" ;
rdfs:comment "Claw located at the end of the 1st hindlimb digit." ;
rdfs:subClassOf obo:XAO_0003103 .
obo:XAO_0004062 a rdfs:Class ;
rdfs:label "tail fin" ;
rdfs:comment "The fin at the posterior part of the body of the tadpole." ;
rdfs:subClassOf obo:XAO_0000002 .
obo:XAO_0004181 a rdfs:Class ;
rdfs:label "cardiac myocyte" ;
rdfs:comment "Type of myocyte that is responsible for heart contraction." ;
rdfs:subClassOf obo:XAO_0004475 .
obo:XAO_1000079 a rdfs:Class ;
rdfs:label "metamorphosing tadpole stage" ;
rdfs:comment "Tadpole stage during which toe differentiation and rapid hindlimb growth continue, followed by tail resorption; comprising Nieuwkoop and Faber stages 54 to 66." ;
rdfs:subClassOf obo:XAO_1000008 .
obo:XAO_0000260 a rdfs:Class ;
rdfs:label "perivitelline space" ;
rdfs:comment "The space between the zona pellucida and the cell membrane of an oocyte or fertilized ovum." ;
rdfs:subClassOf obo:XAO_0004005 .
obo:XAO_0003249 a rdfs:Class ;
rdfs:label "epithelial cell" ;
rdfs:comment "A cell that is usually found in a two-dimensional sheet with a free surface." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000467 a rdfs:Class ;
rdfs:label "dorsal pancreatic bud" ;
rdfs:comment "The pancreatic bud that gives rise to the accessory pancreatic duct." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0000002 a rdfs:Class ;
rdfs:label "fin" ;
rdfs:comment "Surface structure that has an important role in tadpole locomotion. It starts to develop along the trunk and tail of the embryo at the tail bud stage and continues to grow until the start of metamorphosis when it begins to regress. It consists of flattened epidermal cells elevated into a keel-like structure by a supporting core of mesenchyme and extracellular matrix." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0003002 a rdfs:Class ;
rdfs:label "anatomical system" ;
rdfs:comment "Anatomical group that has as its parts distinct anatomical structures interconnected by anatomical structures at a lower level of granularity." ;
rdfs:subClassOf obo:XAO_0003001 .
obo:XAO_0004204 a rdfs:Class ;
rdfs:label "sesamoid" ;
rdfs:comment "Replacement element; an ossicle; often an endochondral replacement element that has cartilage and bone states that develops in dense regular connective tissue (e.g., tendons and ligaments)." ;
rdfs:subClassOf obo:XAO_0004193 .
obo:XAO_0000296 a rdfs:Class ;
rdfs:label "vegetal" ;
rdfs:comment "Anatomical direction relating to the vegetal pole or hemisphere." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0003013 a rdfs:Class ;
rdfs:label "organism subdivision" ;
rdfs:comment "Anatomical structure that is a primary subdivision of the whole organism." ;
rdfs:subClassOf obo:XAO_0005002 .
obo:XAO_1000031 a rdfs:Class ;
rdfs:label "NF stage 10.5" ;
rdfs:comment "Nieuwkoop and Faber stage 10.5, corresponding to an embryo of age 11 hr at 22-24 Celsius and having the following external morphological criteria: Crescent-shaped blastopore stage. Blastopore groove angular. Vegetal field slightly decreased in size, ventral border of future yolk plug indicated by pigment contraction. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003091 a rdfs:Class ;
rdfs:label "trochlear nerve" ;
rdfs:comment "Somatic efferent nerve that runs to the superior oblique muscle of the eye." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0004290 a rdfs:Class ;
rdfs:label "cell part" ;
rdfs:comment "Anatomical structure that is part of a cell and that has a granularity level equal to that of a protein complex or higher." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0005114 a rdfs:Class ;
rdfs:label "ventral vegetal hemisphere blastomere" ;
rdfs:comment "Blastomere that is any of blastomeres V2.1 and V2.2 and their children cells after division, V2.1.1, V2.1.2, V2.2.1 and V2.2.2, on the left and right sides of embryo." ;
rdfs:subClassOf obo:XAO_0000279 .
obo:XAO_0000180 a rdfs:Class ;
rdfs:label "cornea" ;
rdfs:comment "The transparent front part of the eye that, together with the lens, refracts light." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0001014 a rdfs:Class ;
rdfs:label "melanophore" ;
rdfs:comment "A pigment cell that is derived from the neural crest, contains melanin (a brownish-black pigment), and is patchily distributed in the epidermis of the tadpole." ;
rdfs:subClassOf obo:XAO_0003014 .
obo:XAO_0004086 a rdfs:Class ;
rdfs:label "presumptive midbrain-hindbrain boundary" ;
rdfs:comment "Part of the neural ectoderm that will become the embryonic midbrain-hindbrain boundary." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004365 a rdfs:Class ;
rdfs:label "fenestra basicranialis" ;
rdfs:comment "The space where the trabeculae of the tadpole chondrocranium have not yet fused." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000179 a rdfs:Class ;
rdfs:label "eye" ;
rdfs:comment "The organ of sight (visual apparatus), almost spherical in shape. At the end of development (NF stage 66) the eyes bulge out of their orbital capsules near the lateral edge of the dorsal side of the head." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0004100 a rdfs:Class ;
rdfs:label "retinal ganglion cell" ;
rdfs:comment "Type of neuron that receives neural inputs via bipolar, horizontal and amacrine cells. The axons of these cells make up the optic nerve." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0000013 a rdfs:Class ;
rdfs:label "diencephalon" ;
rdfs:comment "A division of the forebrain situated between the telencephalon and midbrain. In the developing brain it is the more posterior and ventral of two forebrain neuromeres, the other being the telencephalon; major derivatives are the eye vesicle, the brain pretectal region, the thalamus, hypothalamus, and epithalamus (including the habenula and epiphysis)." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004445 a rdfs:Class ;
rdfs:label "m. rectus cervicis primordium" ;
rdfs:comment "The presumptive cells of the rectus cervicis muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_1000011 a rdfs:Class ;
rdfs:label "NF stage 2 (2-cell)" ;
rdfs:comment "Nieuwkoop and Faber stage 2, corresponding to an embryo of age 1 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Advanced two cell stage. First cleavage groove has reached vegetal pole. Ventral side of blastomeres darker than dorsal side. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000024 a rdfs:Class ;
rdfs:label "mandibular crest" ;
rdfs:comment "The most anterior of the migrating cranial neural crest streams, running along the posterior edge of the eye primordium, and in later stages, below the eye and to the border of the cement gland. The mandibular stream is the first to initiate CNC cell migration." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004512 a rdfs:Class ;
rdfs:label "midgut primordium" ;
rdfs:comment "The endoderm cells that are fated to become the midgut." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004140 a rdfs:Class ;
rdfs:label "ventricular outflow tract" ;
rdfs:comment "A portion of either the left ventricle or right ventricle of the heart through which blood passes in order to enter the great arteries. The right ventricular outflow tract (RVOT) is an infundibular extension of the ventricular cavity which connects to the pulmonary artery. The left ventricular outflow tract (LVOT), which connects to the aorta, is nearly indistinguishable from the rest of the ventricle." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005321 a rdfs:Class ;
rdfs:label "intercanthal region" ;
rdfs:comment "Region of the face between the two inner (medial) canthi of the eye." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003032 a rdfs:Class ;
rdfs:label "digit" ;
rdfs:comment "One of several most distal parts of a limb." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000203 a rdfs:Class ;
rdfs:label "obsolete archencephalic region" .
obo:XAO_0005190 a rdfs:Class ;
rdfs:label "pars intermedia" ;
rdfs:comment "The boundary between the anterior and posterior lobes of the pituitary (hypophysis). It contains three types of cells: basophils, chromophobes, and colloid-filled cysts. The cysts are the remainder of Rathke's pouch." ;
rdfs:subClassOf obo:XAO_0004486 .
obo:XAO_0000009 a rdfs:Class ;
rdfs:label "retina" ;
rdfs:comment "Sensory membrane that lines the posterior chamber of the eye 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." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003058 a rdfs:Class ;
rdfs:label "obsolete larval structure" .
obo:XAO_0005160 a rdfs:Class ;
rdfs:label "prepollex" ;
rdfs:comment "A tiny skeletal element adjacent to the anterior-most digit in the autopod in the developing forelimb, possibly representing a vestigal digit." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0003113 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 1" ;
rdfs:comment "Compartment of trunk somite 1 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004051 a rdfs:Class ;
rdfs:label "dentine" ;
rdfs:comment "Collagen-rich odontogenic tissue characteristic of teeth and tooth-like skeletal elements (e.g., odontodes); mature dentine is mineralized and develops from predentine tissue; often (but not always) tubular and acellular." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_0004170 a rdfs:Class ;
rdfs:label "vena capitis medialis" ;
rdfs:comment "One of the major dorsal head veins that drains into the anterior cardinal vein, the other being the vena capitis lateralis." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000303 a rdfs:Class ;
rdfs:label "ventro-lateral" ;
rdfs:comment "Spatial concept pertaining to the part of the body opposite the back and away from the midline." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0005109 a rdfs:Class ;
rdfs:label "blastomere V2.1.2" ;
rdfs:comment "Blastomere which lies adjacent to the prospective ventral midline, anterior to its sister cell, blastomere V2.1.1, in the third tier of blastomeres. It contributes cells to the epidermis, neural crest, spinal cord, somites, tail, hindgut and proctodeum." ;
rdfs:subClassOf obo:XAO_0005114 .
obo:XAO_0003069 a rdfs:Class ;
rdfs:label "obsolete hind propodium" .
obo:XAO_0004123 a rdfs:Class ;
rdfs:label "atrioventricular canal" ;
rdfs:comment "The part of the heart connecting the atrium to the cardiac ventricle." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000147 a rdfs:Class ;
rdfs:label "obsolete glomerus" .
obo:XAO_0004547 a rdfs:Class ;
rdfs:label "dorsal pallidum" ;
rdfs:comment "The predominant portion of the globus pallidus in the striatopallidal system, which is defined by connectivity and neurochemical staining. It is distinguished from the ventral pallidum by a boundary that is partially defined by the anterior commissure." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004012 a rdfs:Class ;
rdfs:label "skeletal element" ;
rdfs:comment "Organ entity that is typically involved in mechanical support and may have different skeletal tissue compositions at different stages." ;
rdfs:subClassOf obo:XAO_0003164 .
obo:XAO_0004354 a rdfs:Class ;
rdfs:label "m. rectus inferior" ;
rdfs:comment "Muscle in the orbit that depresses, adducts, and helps extort (rotate laterally) the eye." ;
rdfs:subClassOf obo:XAO_0004327 .
obo:XAO_0000136 a rdfs:Class ;
rdfs:label "pancreas" ;
rdfs:comment "Internal gland organ with distinct tissues with different endocrine and exocrine functions. Its rudiment has three parts, one dorsal and two ventral primordia. The ventral can be first detected at NF stage 37/38. The dorsal is clearly segregated from the duodenal wall by NF stage 39. At NF stage 40 the right and left primordia have fused just above the gastro-duodenal vein. At NF stage 42 blood vessels penetrate into the crevices between the pancreatic acini making them more conspicuous." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003041 .
obo:XAO_0005057 a rdfs:Class ;
rdfs:label "stria terminalis" ;
rdfs:comment "A structure in the brain consisting of a band of fibers running along the lateral margin of the ventricular surface of the thalamus. Serving as a major output pathway of the amygdala, it runs from its centromedial division to the ventral medial nucleus of the hypothalamus." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004168 a rdfs:Class ;
rdfs:label "metencephalic vein" ;
rdfs:comment "The vein that crosses the brain dorsally, parallel with the mid-cerebral vein, and meets the metencephalic artery." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0005176 a rdfs:Class ;
rdfs:label "left-ventral blastomere" ;
rdfs:comment "The blastomere of the future left-ventral portion of the embryo at the 4-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0000300 a rdfs:Class ;
rdfs:label "superficial" ;
rdfs:comment "Spatial concept denoting only the surface of the body." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0004023 a rdfs:Class ;
rdfs:label "craniofacial skeleton" ;
rdfs:comment "Cranial skeleton derived from neural crest cells." ;
rdfs:subClassOf obo:XAO_0004279 .
obo:XAO_0004536 a rdfs:Class ;
rdfs:label "anterior thalamic nucleus" ;
rdfs:comment "Nucleus situated in the thalamus that is associated with the limbic system and is implicated in learning and episodic memory." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004608 a rdfs:Class ;
rdfs:label "third ventricle" ;
rdfs:comment "Brain ventricle formed by a median cleft in the diencephalon between the two thalami." ;
rdfs:subClassOf obo:XAO_0004602 .
obo:XAO_0003230 a rdfs:Class ;
rdfs:label "trunk musculature" ;
rdfs:comment "Muscle that is located posterior to the head and anterior to the tail and consists of epaxial and hypaxial muscle." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004394 a rdfs:Class ;
rdfs:label "hatching gland primordium" ;
rdfs:comment "The presumptive cells of the hatching gland, present by the end of gastrulation." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004391 a rdfs:Class ;
rdfs:label "trochlear motornucleus" ;
rdfs:comment "The nucleus of the trochlear nerve (cranial nerve IV)." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000419 a rdfs:Class ;
rdfs:label "trunk somite 11" ;
rdfs:comment "The 9th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004075 a rdfs:Class ;
rdfs:label "intersomitic vessel" ;
rdfs:comment "Primary blood vessel sprouts that originate from the aorta and grow dorsally between the somites." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0005165 a rdfs:Class ;
rdfs:label "beta cell" ;
rdfs:comment "A type of cell that is found in the pancreatic islets of the pancreas and secretes insulin." ;
rdfs:subClassOf obo:XAO_0005135 .
obo:XAO_0003010 a rdfs:Class ;
rdfs:label "aorta" ;
rdfs:comment "The main artery of the circulatory system which carries oxygenated blood from the heart to all the arteries of the body except those of the lungs." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_1000042 a rdfs:Class ;
rdfs:label "NF stage 26" ;
rdfs:comment "Nieuwkoop and Faber stage 26, corresponding to an embryo of age 1 day, 5 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Otic vesicle protruding. Pronephros distinctly visible. Myotomes showing through for the first time. Fin somewhat broadened at dorso-caudal end of body. Beginning of spontaneous movements. Length: 3.0 - 3.3 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000083 a rdfs:Class ;
rdfs:label "involuted dorsal mesoderm" ;
rdfs:comment "Dorsal mesoderm that has grown and curled inward during gastrulation." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003021 a rdfs:Class ;
rdfs:label "obsolete spinal cord neuron" .
obo:XAO_0006025 a rdfs:Class ;
rdfs:label "follicular dendritic cell" ;
rdfs:comment "A cell with extensive dendritic processes found in the B cell areas (primary follicles and germinal centers) of lymphoid tissue." ;
rdfs:subClassOf obo:XAO_0006024 .
obo:XAO_1000000 a rdfs:Class ;
rdfs:label "Xenopus developmental stage" ;
rdfs:comment "A temporal interval that defines Xenopus life from unfertilized egg to adult and death stages." .
obo:XAO_0003126 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 9" ;
rdfs:comment "Compartment of trunk somite 9 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0000426 a rdfs:Class ;
rdfs:label "olfactory nerve" ;
rdfs:comment "Cranial nerve that supplies the nasal organ. It leaves the olfactory lobe, passes through the fenestra olfactoria into the nasal capsule, and there divides into the ramus profundus and ramus dorsalis." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0000275 a rdfs:Class ;
rdfs:label "olfactory pit" ;
rdfs:comment "A depression on the head of the embryo that becomes converted into a nasal passage." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0005277 a rdfs:Class ;
rdfs:label "obsolete right optic vesicle" .
obo:XAO_0003219 a rdfs:Class ;
rdfs:label "retinal outer nuclear layer" ;
rdfs:comment "The layer within the retina where the photoreceptor cell bodies reside." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000152 a rdfs:Class ;
rdfs:label "obsolete renal distal convoluted tubule" .
obo:XAO_0000035 a rdfs:Class ;
rdfs:label "zygote" ;
rdfs:comment "Cell formed by a fertilization event between male and female gametes." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000094 a rdfs:Class ;
rdfs:label "gastrocoel roof plate" ;
rdfs:comment "A transient ciliated epithelium that arises from the involuting superficial mesoderm, forming the dorsal surface of the archenteron space of the embryo." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000162 a rdfs:Class ;
rdfs:label "thyroid" ;
rdfs:comment "A two-lobed endocrine gland, located next to the trachea, and producing various hormones, such as triiodothyronine and calcitonin." ;
rdfs:subClassOf obo:XAO_0003041 .
obo:XAO_1000058 a rdfs:Class ;
rdfs:label "NF stage 46" ;
rdfs:comment "Nieuwkoop and Faber stage 46, corresponding to a tadpole of age 4 days, 10 hr at 22-24 Celsius and having the following external morphological criteria: Edge of operculum becoming convex. Xantophores appearing on eye and abdomen. Intestine showing 2 to 2.5 revolutions. Hindlimb bud visible for the first time. Length: 9 - 12 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000401 a rdfs:Class ;
rdfs:label "sclerotomal cartilage" ;
rdfs:comment "Sclerotome cells of the cartilage fate." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000215 a rdfs:Class ;
rdfs:label "central nervous system" ;
rdfs:comment "The part of the nervous system that consists of the brain and spinal cord, to which sensory impulses are transmitted and from which motor impulses pass out, and that supervises and coordinates the activity of the entire nervous system." ;
rdfs:subClassOf obo:XAO_0000177 .
obo:XAO_0004163 a rdfs:Class ;
rdfs:label "angioblast" ;
rdfs:comment "A precursor cell of the vascular endothelium which organizes into the primitive blood vessels during embryogenesis." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0006014 a rdfs:Class ;
rdfs:label "nuptial pad" ;
rdfs:comment "A raised callus of cornified epidermis used by the male frog to hold the female during mating." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0004424 a rdfs:Class ;
rdfs:label "central retina" ;
rdfs:comment "Anatomical region comprising the central part of the retina." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000082 a rdfs:Class ;
rdfs:label "circumblastoporal collar" ;
rdfs:comment "Embryonic structure that develops around the closed blastopore." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004096 a rdfs:Class ;
rdfs:label "lens fiber cell mass" ;
rdfs:comment "Portion of tissue comprising fibers that form the bulk of the lens. They are long, thin, transparent cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006035 a rdfs:Class ;
rdfs:label "Schwann cell precursor" ;
rdfs:comment "A giioblast cell that develops from a migratory neural crest cell. It is embedded among neurons (axons) with minimal extracellular spaces separating them from nerve cell membranes and has no basal lamina." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_0000125 a rdfs:Class ;
rdfs:label "alimentary system" ;
rdfs:comment "Anatomical system that has as its parts the organs devoted to the ingestion, digestion, and assimilation of food and the discharge of residual wastes." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0004504 a rdfs:Class ;
rdfs:label "periosteum (sensu fibrous layer)" ;
rdfs:comment "The outer layer of the periosteum, containing acellular connective tissue and fibroblasts." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0000141 a rdfs:Class ;
rdfs:label "mesonephric kidney" ;
rdfs:comment "A visceral organ which provides osmoregulation and waste excretion for tadpoles through adult stages in Xenopus. The mesonephros starts to develop at NF stage 39, then during feeding stage tadpoles through metamorphosis replaces the embryonic pronephros as it degenerates." ;
rdfs:subClassOf obo:XAO_0005244 .
obo:XAO_0004399 a rdfs:Class ;
rdfs:label "wound epidermis outer layer" ;
rdfs:comment "Regenerating tissue that forms the outer layer of wound epidermis." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0000226 a rdfs:Class ;
rdfs:label "equatorial belt" ;
rdfs:comment "Equatorial zone of the zygote with which the plane of first cleavage aligns." ;
rdfs:subClassOf obo:XAO_0003040 , obo:XAO_0004290 .
obo:XAO_0000128 a rdfs:Class ;
rdfs:label "stomach" ;
rdfs:comment "An expanded region of the alimentary tract that is situated between the esophagus and the beginning of the duodenum and produces gastric juices involved in the breakdown of food." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003165 .
obo:XAO_1000064 a rdfs:Class ;
rdfs:label "NF stage 52" ;
rdfs:comment "Nieuwkoop and Faber stage 52, corresponding to a tadpole of age about 21 days at 22-24 Celsius and having the following external morphological criteria: Forelimb bud irregularly conical. Hindlimb bud showing first indication of ankle constriction and first sign of flattening of foot. Length: 42 - 56 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004254 a rdfs:Class ;
rdfs:label "subclavian vein" ;
rdfs:comment "Vein that collects blood from the forelimb via the branchial veins and from the muscles and skin of the trunk via the anterior epigastric and lateral veins." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004601 a rdfs:Class ;
rdfs:label "prosomere 6" ;
rdfs:comment "The 6th segment of the developing forebrain." ;
rdfs:subClassOf obo:XAO_0004598 .
obo:XAO_0005030 a rdfs:Class ;
rdfs:label "cell body layer of the optic tectum" ;
rdfs:comment "Layer of the optic tectum that consists of tectal somata." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006030 a rdfs:Class ;
rdfs:label "megakaryocyte" ;
rdfs:comment "A large hematopoietic cell (50 to 100 microns) with a lobed nucleus. Once mature, it undergoes multiple rounds of endomitosis and cytoplasmic restructuring to allow platelet formation and release." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005214 a rdfs:Class ;
rdfs:label "axial region" ;
rdfs:comment "Anatomical region that runs down the center (axis) of the body, encompassing everything exept the limbs." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_1000022 a rdfs:Class ;
rdfs:label "NF stage 12" ;
rdfs:comment "Nieuwkoop and Faber stage 12, corresponding to an embryo of age 13 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Medium yolk plug stage. Yolk plug circular; diameter somewhat less than one fourth of diameter of egg (plus or minus 25 degrees). More and less pigmented fields radiating from yolk plug. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0006046 a rdfs:Class ;
rdfs:label "eosinophil" ;
rdfs:comment "Any of the immature or mature forms of a granular leukocyte with a nucleus that usually has two lobes connected by one or more slender threads of chromatin, and cytoplasm containing coarse, round granules that are uniform in size." ;
rdfs:subClassOf obo:XAO_0006044 .
obo:XAO_0000253 a rdfs:Class ;
rdfs:label "non-involuting marginal zone" ;
rdfs:comment "Animal portion of the marginal zone of the embryo that spreads in front of the animal cap but does not involute during gastrulation." ;
rdfs:subClassOf obo:XAO_0000068 .
obo:XAO_0000247 a rdfs:Class ;
rdfs:label "visceral pouch 2" ;
rdfs:comment "Second of the pharyngeal (endodermal) evaginations between the visceral arches from which the Eustachian tube is derived; pouches 2-4 open as gill slits." ;
rdfs:subClassOf obo:XAO_0000282 .
obo:XAO_0005068 a rdfs:Class ;
rdfs:label "motor axon" ;
rdfs:comment "An axon that is part of a motor neuron and which projects outside the spinal cord to directly or indirectly control muscles." ;
rdfs:subClassOf obo:XAO_0005015 .
obo:XAO_0005299 a rdfs:Class ;
rdfs:label "esophageal epithelium" ;
rdfs:comment "The epithelium of the esophagus." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0003094 a rdfs:Class ;
rdfs:label "facial nerve" ;
rdfs:comment "Cranial nerve that branches into the supraorbital (supplying the skin of the eye region and the lateral line organs here), the palatine (to the roof of the buccal cavity), and the hyomandibular (dividing into the jugular and mental branches)." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0003178 a rdfs:Class ;
rdfs:label "dorsal hyoid arch skeleton" ;
rdfs:comment "Skeletal subdivision comprising the dorsal skeletal elements of the hyoid arch." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004090 a rdfs:Class ;
rdfs:label "optic field" ;
rdfs:comment "Portion of tissue that is part of the anterior neural plate and will form the optic vesicle." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004413 a rdfs:Class ;
rdfs:label "hindlimb digit 3" ;
rdfs:comment "The 3rd most posterior, or middle, of the hind digits, consisting of a single metatarsal, 3 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003035 .
obo:XAO_0003204 a rdfs:Class ;
rdfs:label "neural tube" ;
rdfs:comment "Hollow epithelial tube on the dorsal side of the embryo that develops into the brain and spinal cord." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004237 a rdfs:Class ;
rdfs:label "lateral ganglionic eminence" ;
rdfs:comment "A distinct elevation of a transient proliferating cell mass of the subventricular zone; this mass contributes most of its cells to the striatum; however, neocortex, thalamus, septum and olfactory bulb neurons are also partly derived from the LGE." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000208 a rdfs:Class ;
rdfs:label "blastopore" ;
rdfs:comment "The opening of the archenteron to the exterior, marking the point of origin of the archenteron and the caudal end of the embryo." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000337 a rdfs:Class ;
rdfs:label "endocardial tube" ;
rdfs:comment "Region in the embryo that consists of precursor cells for the development of the embryonic heart." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004209 a rdfs:Class ;
rdfs:label "anterior neural ridge" ;
rdfs:comment "The region that delineates the rostral boundary of the neural plate in the neural stage embryo, and is devoid of neural crest cells. It gives rise to the pre-placodal region, some elements of the forebrain, and the anterior lobe of the pituitary gland." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004507 a rdfs:Class ;
rdfs:label "osteoblast" ;
rdfs:comment "Skeletogenic cell that secretes osteoid, is capable of producing mineralized matrix, is located adjacent to or within osteoid tissue, and arises from the transformation of a preosteoblast cell." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005288 a rdfs:Class ;
rdfs:label "pial cell" ;
rdfs:comment "A cell of the pia mater, the delicate fibrous meningeal coverings of the CNS." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005143 a rdfs:Class ;
rdfs:label "pars interna of the stapes" ;
rdfs:comment "A cartilaginous component of the stapes that is firmly attached to the proximal end of the pars media. It lies within the oval window and forms the stapes footplate." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0005294 a rdfs:Class ;
rdfs:label "mandibular nerve" ;
rdfs:comment "Cephalic nerve that innervates the lower jaw." ;
rdfs:subClassOf obo:XAO_0005309 .
obo:XAO_0003076 a rdfs:Class ;
rdfs:label "cervical vertebra" ;
rdfs:comment "The first vertebra, which arises from the trunk somites 1 and 2." ;
rdfs:subClassOf obo:XAO_0004019 .
obo:XAO_0004434 a rdfs:Class ;
rdfs:label "m. subarcualis rectus I primordium" ;
rdfs:comment "The presumptive cells of the subarcualis rectus I muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000390 a rdfs:Class ;
rdfs:label "caudal vein" ;
rdfs:comment "Vein in the tail returning blood from the trunk and tail to the heart, leading directly into the posterior cardinal vein in the posterior trunk." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000158 a rdfs:Class ;
rdfs:label "endocrine system" ;
rdfs:comment "Anatomical system that consists of the glands and parts of glands that produce endocrine secretions and help to integrate and control bodily metabolic activity." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0004049 a rdfs:Class ;
rdfs:label "perichondrium" ;
rdfs:comment "A layer of dense irregular connective tissue that surrounds the cartilage of developing bone, consisting of two separate layers: an outer fibrous layer and inner chondrogenic layer. The fibrous layer contains fibroblasts, which produce collagenous fibers. The chondrogenic layer remains undifferentiated and can form chondroblasts or chondrocytes. Perichondrium is a type of connective tissue, and also functions in the growth and repair of cartilage. Once vascularized, the perichondrium becomes the periosteum." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0004516 a rdfs:Class ;
rdfs:label "blastocoel floor" ;
rdfs:comment "The upper surface of the vegetal yolk mass which forms the floor for the blastocoel (cavity) of the early gastrula embryo." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005035 a rdfs:Class ;
rdfs:label "Mauthner cell" ;
rdfs:comment "Any of a pair of large, easily identifiable, reticulospinal neurons at the level of the ear in the hindbrain. Importantly, they enable the escape reflex. Inner ear vestibular and auditory neurons form synapses on the lateral dendrite of the ipsilateral Mauthner cell, which in turn form synapses on contralateral spinal motor neurons to activate the C-start escape response." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0004376 a rdfs:Class ;
rdfs:label "processus muscularis palatoquadrati" ;
rdfs:comment "Cartilaginous element comprising the muscular process, a flattened triangular process that is the site of attachment for the orbitohyoideus and suspensoriohyoideus muscles." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004129 a rdfs:Class ;
rdfs:label "m. rectus cervicus" ;
rdfs:comment "Muscle that retracts the hyoid and, therefore, the tongue." ;
rdfs:subClassOf obo:XAO_0004326 .
obo:XAO_0005024 a rdfs:Class ;
rdfs:label "olfactory epithelium" ;
rdfs:comment "A sensory epithelium inside the nasal cavity that is responsible for detecting odors." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0000264 a rdfs:Class ;
rdfs:label "pronephric mesenchyme" ;
rdfs:comment "Portion of tissue that consists of the mesenchymal precursor to the pronephric kidney and that begins to separate from the intermediate mesoderm at NF stage 21 and epithelializes by NF stage 30." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0004371 a rdfs:Class ;
rdfs:label "processus ascendens palatoquadrate" ;
rdfs:comment "Cartilaginous element comprising the ascending process that helps anchor the larval palatoquadrate to the neurocranium." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0006055 a rdfs:Class ;
rdfs:label "medial cluster" ;
rdfs:comment "The medially projecting, lobe-like cluster of glomeruli within the glomerular layer of the ofactory bulb." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004331 a rdfs:Class ;
rdfs:label "m. levator mandibulae articularis" ;
rdfs:comment "Muscle that is part a complex that arises from the skull roof and acts to elevate or close the lower jaw. It originates from the ventral bend of the anlage of processus muscularis palatoquadrati. It runs ventrally near the levator mandibulae longus supeficialis and inserts anterior of it at Meckel's cartilage." ;
rdfs:subClassOf obo:XAO_0004323 .
obo:XAO_0004198 a rdfs:Class ;
rdfs:label "enamel" ;
rdfs:comment "Skeletal tissue that consists of an avascular, noncollagenous, hypermineralized matrix that is deposited by ameloblasts that are excluded from the matrix. It develops from organic pre-enamel tissue that is replaced by a largely inorganic matrix." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_1000009 a rdfs:Class ;
rdfs:label "obsolete frog" .
obo:XAO_0004456 a rdfs:Class ;
rdfs:label "Brachet's cleft" ;
rdfs:comment "A sharp boundary, running parallel to the outside of the embryo, between involuted mesoderm and external ectoderm. It runs from the blastopore to the upper limit of the involuted mesoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_1000053 a rdfs:Class ;
rdfs:label "NF stage 41" ;
rdfs:comment "Nieuwkoop and Faber stage 41, corresponding to an embryo of age 3 days, 4 hr at 22-24 Celsius and having the following external morphological criteria: Gills broader and flatter, more laterally directed. Formation of a left-rostral and a right-caudal furrow in yolk mass; torsion of interjacent part about 45 degrees; formation of conical proctodeum, forming angle of about 60 degrees with tail myotomes. Formation of fin rostral to proctodeum; ventral outline of yolk mass and proctodeum a smooth concave line. Length: 6.7 - 7.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004467 a rdfs:Class ;
rdfs:label "zygote cortex" ;
rdfs:comment "Cell component comprising the outer layers of the zygote." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0005300 a rdfs:Class ;
rdfs:label "stomach epithelium" ;
rdfs:comment "The epithelium of the stomach." ;
rdfs:subClassOf obo:XAO_0003200 .
obo:XAO_0003088 a rdfs:Class ;
rdfs:label "seminiferous tubule" ;
rdfs:comment "Any of the coiled tubules located in the testes in which spermatozoa are produced." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004302 a rdfs:Class ;
rdfs:label "pallium" ;
rdfs:comment "Structure that comprises the roof region of the telencephalon." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000415 a rdfs:Class ;
rdfs:label "notochordal sheath" ;
rdfs:comment "Mesenchymal covering surrounding the notochord, derived from sclerotomal mesenchyme." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004006 a rdfs:Class ;
rdfs:label "multilaminar epithelium" ;
rdfs:comment "Epithelium that consists of more than one layer of epithelial cells." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0003167 a rdfs:Class ;
rdfs:label "obsolete fore metapodium" .
obo:XAO_0003024 a rdfs:Class ;
rdfs:label "head" ;
rdfs:comment "Organism subdivision that is the part of the body consisting of the cranial and pharyngeal regions." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0004248 a rdfs:Class ;
rdfs:label "epigastric artery" ;
rdfs:comment "Artery that supplies the anterior wall of the abdomen." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004620 a rdfs:Class ;
rdfs:label "neurogenic placode" ;
rdfs:comment "Cranial placode with neurogenic potential." ;
rdfs:subClassOf obo:XAO_0000305 .
obo:XAO_0003241 a rdfs:Class ;
rdfs:label "early embryonic cell" ;
rdfs:comment "A cell found in the embryo before the formation of all the germ layers is complete." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004564 a rdfs:Class ;
rdfs:label "lateral septum" ;
rdfs:comment "A set of septal nuclei comprising the lateral aspect of the forebrain septum." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0004016 a rdfs:Class ;
rdfs:label "regenerating skeletal element" ;
rdfs:comment "Skeletal element that forms as a replacement or substitution of another element or tissue." ;
rdfs:subClassOf obo:XAO_0004012 .
obo:XAO_0005194 a rdfs:Class ;
rdfs:label "medial nasal prominence" ;
rdfs:comment "The central area of the two limbs of a horseshoe-shaped mesenchymal swelling that lie medial to the olfactory placode or pit in the future nasal region of the embryo." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000366 a rdfs:Class ;
rdfs:label "internal carotid artery" ;
rdfs:comment "One of the major arteries of the head, it is the cranial continuation of the aortic arches and the dorsal aorta. It curves ventrally before resuming a dorsal course as it enters the head proper, and it lies ventral to the internal jugular vein. The internal carotid artery gives off palatine, ophthalmic, and cerebral branches by NF stage 41." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004079 a rdfs:Class ;
rdfs:label "rhombomere" ;
rdfs:comment "Any of the transient sequential subdivisions of the developing hindbrain, all posterior to the midbrain-hindbrain boundary." ;
rdfs:subClassOf obo:XAO_0004597 .
obo:XAO_0004056 a rdfs:Class ;
rdfs:label "distal mesenchyme" ;
rdfs:comment "Mesenchyme cells that proliferate in the progress zone of developing limb buds." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0004039 a rdfs:Class ;
rdfs:label "mineralized tissue" ;
rdfs:comment "Skeletal tissue that is mineralized." ;
rdfs:subClassOf obo:XAO_0004038 .
obo:XAO_0004027 a rdfs:Class ;
rdfs:label "extracellular matrix" ;
rdfs:comment "Anatomical structure composed of a combination of protein fibers, ground substance and tissue fluid; typically has embedded cells." ;
rdfs:subClassOf obo:XAO_0003162 .
obo:XAO_0000231 a rdfs:Class ;
rdfs:label "follicle layer" ;
rdfs:comment "A monolayer of follicle cells surrounding the developing oocyte and forming adhesive contacts with the surrounding follicular epithelium." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005046 a rdfs:Class ;
rdfs:label "caudal tuberal region" ;
rdfs:comment "The caudal zone of the tuberal region of the hypothalamus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004226 a rdfs:Class ;
rdfs:label "ventral tegmentum" ;
rdfs:comment "Region of the mesencephalon that arises from a small area of the neural plate, spanning the midline immediately adjacent, and being slightly posterior to the dorsal tegmentum area." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005041 a rdfs:Class ;
rdfs:label "lateral semicircular canal" ;
rdfs:comment "The laterally, or horizontally, oriented of the three semicircular canals." ;
rdfs:subClassOf obo:XAO_0000198 .
obo:XAO_0000093 a rdfs:Class ;
rdfs:label "archenteron floor" ;
rdfs:comment "The layer of cells forming the ventral surface of the archenteron space of the embryo." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004067 a rdfs:Class ;
rdfs:label "suprablastoporal endoderm" ;
rdfs:comment "During gastrulation, the ring of endodermal cells that overlie the larger sub-blastoral endoderm cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005052 a rdfs:Class ;
rdfs:label "nucleus reticularis medialis" ;
rdfs:comment "Medial nucleus of the reticular nucleus of the brain stem." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004619 a rdfs:Class ;
rdfs:label "caudal presomitic mesoderm" ;
rdfs:comment "The most posterior region of presomitic mesoderm where somitomeres have yet to be fated." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000219 a rdfs:Class ;
rdfs:label "obsolete superficial (epithelial) layer" .
obo:XAO_0004157 a rdfs:Class ;
rdfs:label "hyaloid vascular plexus" ;
rdfs:comment "Network of intersecting blood vessels associated with the posterior region of the lens." ;
rdfs:subClassOf obo:XAO_0004154 .
obo:XAO_0000135 a rdfs:Class ;
rdfs:label "gall bladder" ;
rdfs:comment "A small organ of the alimentary system that aids mainly in fat digestion, and concentrates bile that is produced by the liver." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003041 .
obo:XAO_1000069 a rdfs:Class ;
rdfs:label "NF stage 57" ;
rdfs:comment "Nieuwkoop and Faber stage 57, corresponding to a tadpole of age about 41 days at 22-24 Celsius and having the following external morphological criteria: Pigment-free spot appearing above \"Stirnorgan\". Angle of elbow more than 90 degrees; fingers stretched out in forelimb atrium, their length about 7 times their breadth. Length: 75 - 105 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000311 a rdfs:Class ;
rdfs:label "lateral plate mesoderm" ;
rdfs:comment "Portion of the middle of the three primary germ layers of the embryo that resides on the periphery of the embryo, splits into two layers enclosing the intra-embryonic coelom, and gives rise to body wall structures." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005226 a rdfs:Class ;
rdfs:label "migrating myoblast" ;
rdfs:comment "Any of the muscle precursor cells which emerge from the lower margin of the trunk somites, appear in a segmented pattern, and move through the lateral regions of the embryo to form the hypaxial muscle." ;
rdfs:subClassOf obo:XAO_0003015 .
obo:XAO_0004408 a rdfs:Class ;
rdfs:label "anterior-proximal mesenchyme" ;
rdfs:comment "Mesenchyme that occupies the anterior proximal region of a limb bud." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0004342 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium III" ;
rdfs:comment "The 3rd branchial levator muscle, which contributes to raising the branchial apparatus." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0004327 a rdfs:Class ;
rdfs:label "eye muscle" ;
rdfs:comment "A muscle that is part of the eye region and controls the movement of the eye." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0003215 a rdfs:Class ;
rdfs:label "photoreceptor layer" ;
rdfs:comment "The layer within the retina where the photoreceptor cell receptor segments reside." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004387 a rdfs:Class ;
rdfs:label "retinal stem cell region" ;
rdfs:comment "Region of the ciliary marginal zone, at the edge (most distal region) where retinal stem cells are located." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000280 a rdfs:Class ;
rdfs:label "vegetal hemisphere" ;
rdfs:comment "Anatomical region that is the lower, light-colored hemisphere of the egg, as its cells contain large amounts of dense yolk proteins. The Xenopus egg is divided into two roughly equal halves: the animal and vegetal hemispheres." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000338 a rdfs:Class ;
rdfs:label "ventral aorta" ;
rdfs:comment "The outlet of the embryonic heart; lies in the floor of the pharynx and conducts blood from the bulbus arteriosis to the aortic arches (1-6)." ;
rdfs:subClassOf obo:XAO_0003010 .
obo:XAO_0005183 a rdfs:Class ;
rdfs:label "commissural interneuron" ;
rdfs:comment "An interneuron which starts to grow on one side of the body and navigates in the ventral direction." ;
rdfs:subClassOf obo:XAO_0004267 .
obo:XAO_0004316 a rdfs:Class ;
rdfs:label "interdigital region" ;
rdfs:comment "Anatomical region between digits, the most distal parts of a limb." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000191 a rdfs:Class ;
rdfs:label "middle ear" ;
rdfs:comment "The air-filled cavity within the skull that lies between the outer ear and the inner ear." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005079 a rdfs:Class ;
rdfs:label "ventrolateral edge of myotome" ;
rdfs:comment "Muscle-forming part of each myotome that splits from the dorsomedial edge and gives rise to the hypaxial musculature." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004259 a rdfs:Class ;
rdfs:label "medial ganglionic eminence" ;
rdfs:comment "A distinct elevation of a transient proliferating cell mass of the subventricular zone; this mass contributes most of its cells to the neocortex; however, hippocampal neurons, thalamus, septum and olfactory bulb neurons are also partly derived from the MGE." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003065 a rdfs:Class ;
rdfs:label "forelimb bud" ;
rdfs:comment "The anterior limb bud that develops into the fore limb; oval shaped in dorsal aspect by NF stage 50, and paddle shaped by NF stage 53; all four fingers and melanophores apparent by NF stage 54." ;
rdfs:subClassOf obo:XAO_0003161 .
obo:XAO_0003137 a rdfs:Class ;
rdfs:label "sclerotome of tail somite 15" ;
rdfs:comment "Compartment of tail somite 15 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0005064 a rdfs:Class ;
rdfs:label "internal coil of the small intestine" ;
rdfs:comment "Part of the double coil of the small intestine, consisting of clockwise loops of intestine distal to the external coil." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004125 a rdfs:Class ;
rdfs:label "atrioventricular valve leaflet" ;
rdfs:comment "A portion of tissue forming a cusp guarding the opening of the atrioventricular valve." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005025 a rdfs:Class ;
rdfs:label "macrophage" ;
rdfs:comment "A mononuclear phagocyte present in a variety of tissues, typically differentiated from monocytes, capable of phagocytosing a variety of extracellular particulate material, including immune complexes, microorganisms, and dead cells." ;
rdfs:subClassOf obo:XAO_0003239 .
obo:XAO_0004330 a rdfs:Class ;
rdfs:label "m. levator mandibulae longus superficialis" ;
rdfs:comment "Muscle that is part a complex that arises from the skull roof and acts to elevate or close the lower jaw. The first mandibular arch muscle to appear, it originates ventral to the center of the eye, and extends rostroventrally to end lateral to the buccal cavity." ;
rdfs:subClassOf obo:XAO_0004323 .
obo:XAO_0005289 a rdfs:Class ;
rdfs:label "pia mater" ;
rdfs:comment "The innermost delicate fibrous meningeal coverings of the CNS. It is closely adherent to the brain tissue and is composed of one to several layers of flattened, modified fibroblasts and the ECM (collagen and elastic fibers, etc.) they produce." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000369 a rdfs:Class ;
rdfs:label "anterior palatine artery" ;
rdfs:comment "One of three branches of the internal carotid artery, it supplies the mouth region." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004078 a rdfs:Class ;
rdfs:label "intersomitic neuron" ;
rdfs:comment "Neuron located in the intersomitic region." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0004420 a rdfs:Class ;
rdfs:label "claw of hindlimb digit 4" ;
rdfs:comment "Claw located at the end of the 4th hindlimb digit." ;
rdfs:subClassOf obo:XAO_0003103 .
obo:XAO_0000171 a rdfs:Class ;
rdfs:label "joint" ;
rdfs:comment "Anatomical cluster that consists of two or more adjacent bones or cartilages, which may be interconnected by various types of tissue." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0001103 a rdfs:Class ;
rdfs:label "ventral pancreatic bud" ;
rdfs:comment "Either of the two ventral pancreas rudiments that join and fuse with the right end of the dorsal pancreatic rudiment." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000105 a rdfs:Class ;
rdfs:label "pharyngeal cavity" ;
rdfs:comment "The space enclosed by the walls of the pharynx." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0003066 a rdfs:Class ;
rdfs:label "hindlimb bud" ;
rdfs:comment "The posterior limb bud that develops into the hindlimb; a thickening of the ectoderm first noticeable at NF stage 47, innervated by NF stage 51. The hindlimb buds develop before the forelimb buds." ;
rdfs:subClassOf obo:XAO_0003161 .
obo:XAO_0003077 a rdfs:Class ;
rdfs:label "presacral vertebra" ;
rdfs:comment "The vertebra anterior to the sacral vetebra." ;
rdfs:subClassOf obo:XAO_0004019 .
obo:XAO_0003222 a rdfs:Class ;
rdfs:label "inner limiting membrane" ;
rdfs:comment "Retinal layer composed of the basal lamina of Muller cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004579 a rdfs:Class ;
rdfs:label "posterior commissure" ;
rdfs:comment "Diencephalic tract that is located in the vicinity of the dorsal diencephalon and mesencephalon and connects the pretectal nuclei." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005326 a rdfs:Class ;
rdfs:label "axon microtubule bundle" ;
rdfs:comment "An arrangement of closely apposed microtubules running parallel to each other in the axon hillock and initial segment." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_1000026 a rdfs:Class ;
rdfs:label "NF stage 16" ;
rdfs:comment "Nieuwkoop and Faber stage 16, corresponding to an embryo of age 18 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Mid neural fold stage. Anterior part of neural plate rectangular; darkly pigmented eye anlagen present; neural plate sharply constricted in the middle. Inner ridges on neural folds forming angle of about 90 degrees with neural plate in rhombencephalic region. Length: 1.5 - 1.6 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003087 a rdfs:Class ;
rdfs:label "upper jaw" ;
rdfs:comment "The dorsal portion of the first pharyngeal arch." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000086 a rdfs:Class ;
rdfs:label "ciliary marginal zone" ;
rdfs:comment "The region at the periphery of the retina where retinal stem cells are located. It is spatially ordered with respect to cellular development and differentiation, with the youngest and least-determined stem cells closest to the periphery, the proliferative retinoblasts in the middle, and postmitotic cells at the central edge." ;
rdfs:subClassOf obo:XAO_0004122 .
obo:XAO_0000243 a rdfs:Class ;
rdfs:label "colon" ;
rdfs:comment "The last portion of the digestive system, it extracts water and salt from solid wastes before they are eliminated from the body." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004484 a rdfs:Class ;
rdfs:label "retinal progenitor cell" ;
rdfs:comment "Cell that is present in the progenitor cell region of the retinal ciliary marginal zone." ;
rdfs:subClassOf obo:XAO_0005033 .
obo:XAO_0005180 a rdfs:Class ;
rdfs:label "multiciliated cell precursor" ;
rdfs:comment "Cell type that gives rise to multiciliated cells." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004265 a rdfs:Class ;
rdfs:label "autopod" ;
rdfs:comment "Limb segment that is the terminal part of the limb (i.e. the metacarpels and phalanges of the forelimb, and the metatarsals and phalanges of the hindlimb, and surrounding tissues)." ;
rdfs:subClassOf obo:XAO_0004294 .
obo:XAO_0000116 a rdfs:Class ;
rdfs:label "capillary" ;
rdfs:comment "Any of the smallest blood vessels connecting arterioles with venules." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0004515 a rdfs:Class ;
rdfs:label "posterior tectum" ;
rdfs:comment "The posterior part of the optic tectum." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003200 a rdfs:Class ;
rdfs:label "gut epithelium" ;
rdfs:comment "The epithelium of the gut." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0000373 a rdfs:Class ;
rdfs:label "duct of Cuvier" ;
rdfs:comment "Bilaterally paired longitudinal vein; the anterior cardinal returns blood from the head, and the posterior cardinal returns it from the trunk; these two vessels join together on each side as the common cardinal vein, also known as the duct of Cuvier that leads to the heart's sinus venosus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004557 a rdfs:Class ;
rdfs:label "isthmic nucleus" ;
rdfs:comment "Nucleus that is a prominant part of the visual system, receiving input from the ipsilateral tectum and sending output to both tecta." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004109 a rdfs:Class ;
rdfs:label "regenerating eye" ;
rdfs:comment "A portion of eye tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0004345 a rdfs:Class ;
rdfs:label "mm. constrictores branchiales III" ;
rdfs:comment "Muscle that arises on part of the chondrocranium and passes to the ventro-lateral region of the cerato-branchialia. It is located on the crista parotica and commissura branchio-cranialis." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0006019 a rdfs:Class ;
rdfs:label "multivesicular body" ;
rdfs:comment "A type of endosome in which regions of the limiting endosomal membrane invaginate to form internal vesicles; membrane proteins that enter the internal vesicles are sequestered from the cytoplasm. In oocytes, multivesicular bodies are abundant on the dorsal side of the NF stage 7 (64-cell) embryos (as a result of cortical rotation) are are frequently surrounded by clouds of smaller, darker cytoplasmic membranes that may represent cytoplasmic determinants." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000448 a rdfs:Class ;
rdfs:label "gill primordium" ;
rdfs:comment "A swelling from the 3rd visceral arch at NF stage 35 and 36, which co-occurs with a depression between the 3rd and 6th, forming the external gills by NF stage 39." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0005218 a rdfs:Class ;
rdfs:label "dorsal region" ;
rdfs:comment "Anatomical region dorsally located on the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004139 a rdfs:Class ;
rdfs:label "outflow tract" ;
rdfs:comment "The portion of the heart through which blood flows into the pulmocutaneous and systemic arteries. It is derived from cardiac precusor cells of the secondary heart field, and septation is incomplete." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004136 a rdfs:Class ;
rdfs:label "saccular macula" ;
rdfs:comment "Portion of tissue that is a patch of thickened, pseudostratified epithelium in the inner ear, consisting of regular arrays of sensory hair cells interspersed with supporting cells. The macula saccule senses linear acceleration and gravity." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000085 a rdfs:Class ;
rdfs:label "intermediate mesoderm" ;
rdfs:comment "Mesoderm layer between somite and lateral plate. All components of the pronephric kidney arise from this." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005122 a rdfs:Class ;
rdfs:label "microtubule" ;
rdfs:comment "Any of the long, generally straight, hollow tubes of internal diameter 12-15 nm and external diameter 24 nm found in a wide variety of eukaryotic cells; each consists (usually) of 13 protofilaments of polymeric tubulin, staggered in such a manner that the tubulin monomers are arranged in a helical pattern on the microtubular surface, and with the alpha/beta axes of the tubulin subunits parallel to the long axis of the tubule; exist in equilibrium with pool of tubulin monomers and can be rapidly assembled or disassembled in response to physiological stimuli; concerned with force generation, e.g. in the spindle." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003050 a rdfs:Class ;
rdfs:label "fat body" ;
rdfs:comment "Anatomical structure associated with the gonads that vary in form among amphibians but are primarily composed of adipose tissue and are thought to be a source of nutrients for the gonads. A body of adipose tissue, in the form of finger-like projections, usually associated with the anterior end of the testis and ovaries. Fat bodies are suspended from the body wall by dorsal mesentry which is fused with the gonadal mesentry (the mesovarium or mesorchidium)." ;
rdfs:subClassOf obo:XAO_0003049 .
obo:XAO_0004266 a rdfs:Class ;
rdfs:label "rhombomere R8" ;
rdfs:comment "The 8th and most posterior segment of the developing hindbrain." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0003250 a rdfs:Class ;
rdfs:label "exocrine cell" ;
rdfs:comment "A cell of an exocrine gland, i.e. a gland that discharges its secretion via a duct." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004057 a rdfs:Class ;
rdfs:label "tail tip" ;
rdfs:comment "Portion of tissue comprising the posterior end of the tail fin." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000039 a rdfs:Class ;
rdfs:label "NF stage 23" ;
rdfs:comment "Nieuwkoop and Faber stage 23, corresponding to an embryo of age 1 day, 45 min at 22-24 Celsius and having the following external morphological criteria: Jaw- and gill-areas completely separated by groove. Ventral outline of embryo more concave. Length: 2.2 - 2.4 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0005241 a rdfs:Class ;
rdfs:label "superficial layer of neurectoderm" ;
rdfs:comment "Layer of neurectoderm that develops into the roof plate of the spinal cord." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000042 a rdfs:Class ;
rdfs:label "neuroectoderm" ;
rdfs:comment "Embryonic ectoderm that gives rise to nervous tissue." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003083 a rdfs:Class ;
rdfs:label "braincase and otic capsule skeleton" ;
rdfs:comment "Skeleton encasing the brain and auditory apparatus." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0005274 a rdfs:Class ;
rdfs:label "obsolete left hindlimb" .
obo:XAO_0004176 a rdfs:Class ;
rdfs:label "optic choroid vascular plexus" ;
rdfs:comment "A plexus of capillaries that is located anteromedial to the eye. It is a capillary layer in the choroid. It is in contact with the basal surface of the retinal pigmented epithelium and supplies the photoreceptors with oxygen and nutrients. The fused basement membrane of this capillary layer and the pigmented epithelium is called Bruch's membrane." ;
rdfs:subClassOf obo:XAO_0004143 .
obo:XAO_0000418 a rdfs:Class ;
rdfs:label "trunk somite 10" ;
rdfs:comment "The 8th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0000268 a rdfs:Class ;
rdfs:label "secondary oogonium" ;
rdfs:comment "A type of germ cell that results from the mitotic division of a primary oogonium." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0004165 a rdfs:Class ;
rdfs:label "intersomitic artery" ;
rdfs:comment "The small branching sprouts of the dorsal aorta that grow across the medial surface of the somite, turn right angles to grow over that surface and then fuse with other sprouts and form the vertebral arteries adjacent to the neural tube; the intersomitic arteries supply the body wall and persist in the adult as the posterior intercostal, subcostal and the lumbar arteries." ;
rdfs:subClassOf obo:XAO_0004075 .
obo:XAO_0000217 a rdfs:Class ;
rdfs:label "dermis" ;
rdfs:comment "A layer of skin between the epidermis (with which it makes up the skin) and subcutaneous tissues, composed of two layers, the papillary and reticular dermis." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000069 a rdfs:Class ;
rdfs:label "ventral marginal zone" ;
rdfs:comment "Embryonic tissue region that will make the ventral mesoderm." ;
rdfs:subClassOf obo:XAO_0000068 .
obo:XAO_0005185 a rdfs:Class ;
rdfs:label "dorsolateral commissural neuron" ;
rdfs:comment "A commissural neuron, originating in the spinal cord, that is involved in the touch sensory pathway and lies adjacent to the Rohon-Beard neurons and close to the roof plate of the spinal cord." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0003233 a rdfs:Class ;
rdfs:label "acinar cell" ;
rdfs:comment "Exocrine functioning cells of the pancreas." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005130 a rdfs:Class ;
rdfs:label "distal stomach" ;
rdfs:comment "The section of the stomach comprising the antrum and pylorus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004150 a rdfs:Class ;
rdfs:label "erythroid lineage cell" ;
rdfs:comment "An immature or mature cell in the lineage leading to and including erythrocytes." ;
rdfs:subClassOf obo:XAO_0004148 .
obo:XAO_0004473 a rdfs:Class ;
rdfs:label "ventral mesoderm" ;
rdfs:comment "Embryonic structure that is induced by the organizer to become lateral mesoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0003267 a rdfs:Class ;
rdfs:label "kidney" ;
rdfs:comment "Either of the pair of structures lying on either side of the dorsal aorta in which fluid balance is regulated and waste is excreted out in the form of urine. Amphibians (and fish) have a early kidney, the pronephros/pronephric kidney, which consitsts of a single nephron attached to a pronephric duct, which in turn is linked to the cloaca. The pronephros functions as primary filtration system for the embryo while the mesonephric kidney develops. The pronephros starts to degenerate at NF stage 53. The mesonephros starts to form at NF stage 39 and contuinues to grow into the adult kidney." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0000451 a rdfs:Class ;
rdfs:label "branchial arch 3" ;
rdfs:comment "The third in a series of paired bars in the wall of the pharynx, within which are formed the third aortic arch and the cartilage bar of the visceral skeleton, and forms and supports the gills." ;
rdfs:subClassOf obo:XAO_0000099 .
obo:XAO_0000224 a rdfs:Class ;
rdfs:label "vegetal part, early involuting" ;
rdfs:comment "Vegetal portion of the marginal zone of the embryo that turns inside the embryo during involution." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004114 a rdfs:Class ;
rdfs:label "stage I oocyte" ;
rdfs:comment "A developing female gamete that is at the pre-vitellogenic stage." ;
rdfs:subClassOf obo:XAO_0000256 .
obo:XAO_0004098 a rdfs:Class ;
rdfs:label "bipolar neuron" ;
rdfs:comment "A type of interneuron that has two neurites, usually an axon and a dendrite, extending from opposite poles of an ovoid cell body." ;
rdfs:subClassOf obo:XAO_0004267 .
obo:XAO_0000221 a rdfs:Class ;
rdfs:label "obsolete deuterencephalic region" .
obo:XAO_0003211 a rdfs:Class ;
rdfs:label "tarsus" ;
rdfs:comment "A bone of the wrist of the hindlimb, which remains cartilaginous until NF stage 66." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_0000012 a rdfs:Class ;
rdfs:label "telencephalon" ;
rdfs:comment "Part of the forebrain consisting of paired olfactory bulbs and cerebral hemispheres." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000004 a rdfs:Class ;
rdfs:label "inner fin" ;
rdfs:comment "Part of the fin consisting of a supporting core of mesenchyme and extracellular matrix." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004120 a rdfs:Class ;
rdfs:label "cardiac jelly" ;
rdfs:comment "A sheet of extracellular matrix that separates the outer myocardial cell layer from the inner endocardial tube in the early embryonic heart. As the heart is going through the looping stages, this extracellular matrix/cardiac jelly starts to thicken in two regions, the atrioventricular canal region and the ventricular outflow tract region. These two discrete swellings of cardiac jelly are known as cardiac cushions. The cardiac jelly plays a central role in the septation of the heart and comprises most of the thickness of the heart wall at early stages, but disappears as the heart differentiates." ;
rdfs:subClassOf obo:XAO_0004027 .
obo:XAO_0005191 a rdfs:Class ;
rdfs:label "ethmoid bone" ;
rdfs:comment "An unpaired bone in the skull that separates the nasal cavity from the brain. It is located at the roof of the nose, between the two orbits." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0000284 a rdfs:Class ;
rdfs:label "epibranchial placode" ;
rdfs:comment "The three distinct placodal areas which develop from the posterior placodal area and lie ventral to the otic placode and dorsocaudal to the pharyngeal clefts, and contribute to the sensory ganglia for the distal portion of cranial nerves VII IX and X. The proximal neurons are derived from the neural crest." ;
rdfs:subClassOf obo:XAO_0004620 .
obo:XAO_0000001 a rdfs:Class ;
rdfs:label "ectoderm" ;
rdfs:comment "Primary germ layer that is the outer of the embryo's germ layers and gives rise to epidermis and neural tissue." ;
rdfs:subClassOf obo:XAO_0003011 .
obo:XAO_0003133 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 13" ;
rdfs:comment "Compartment of trunk somite 13 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004312 a rdfs:Class ;
rdfs:label "regenerating fin" ;
rdfs:comment "A portion of fin tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0000343 a rdfs:Class ;
rdfs:label "aortic arch 2" ;
rdfs:comment "The second in a series paired arterial connections between the dorsal and ventral aortae. Aortic arch that is part of hyoid arch." ;
rdfs:subClassOf obo:XAO_0000341 .
obo:XAO_0003072 a rdfs:Class ;
rdfs:label "obsolete hind epipodium" .
obo:XAO_0004568 a rdfs:Class ;
rdfs:label "medial amygdala" ;
rdfs:comment "A nucleus comprising the medial aspect of the amygdala, involved in receiving olfactory information." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0003028 a rdfs:Class ;
rdfs:label "surface structure" ;
rdfs:comment "Organism subdivision that is the collection of anatomical structures on the body surface." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_1000045 a rdfs:Class ;
rdfs:label "NF stage 29 and 30" ;
rdfs:comment "Nieuwkoop and Faber stage 29/30, corresponding to an embryo of age 1 day, 11 hr at 22-24 Celsius and having the following external morphological criteria: Gray eye cup showing through for the first time. Fin transparent up to the base over its whole length. Tail bud distinct. Length: 4.0 - 4.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004373 a rdfs:Class ;
rdfs:label "processus lateralis hyalis" ;
rdfs:comment "Cartilaginous element comprising the lateral process of ceratohyal cartilage derived from the hyoid neural crest stream." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0005263 a rdfs:Class ;
rdfs:label "anterior neuroectoderm" ;
rdfs:comment "Neuroectoderm that is located on the anterior side of the organism." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004154 a rdfs:Class ;
rdfs:label "hyaloid blood vessel" ;
rdfs:comment "Vessels that are associated with the posterior region of the lens." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0000067 a rdfs:Class ;
rdfs:label "ventral blood island" ;
rdfs:comment "Region located on the ventral surface of the developing embryo that is a site of hematopoiesis and that is analogous to the yolk sac blood islands of higher vertebrates." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004187 a rdfs:Class ;
rdfs:label "anterior branchial crest" ;
rdfs:comment "Branchial crest that is the 3rd neural crest stream and lays between hyoid crest and posterior branchial crest." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004526 a rdfs:Class ;
rdfs:label "principal cavity" ;
rdfs:comment "Air-filled cavity in the adult frog apposed to an olfactory epithelium for detection of airborne odorants." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0006052 a rdfs:Class ;
rdfs:label "adaptive immune system" ;
rdfs:comment "Subsystem of the immune system that is composed of specialized, systemic cells and processes that eliminate pathogens or prevent their growth." ;
rdfs:subClassOf obo:XAO_0003152 .
obo:XAO_0004222 a rdfs:Class ;
rdfs:label "middle lateral line placode" ;
rdfs:comment "Lateral line placode that gives rise to the middle lateral line nerve." ;
rdfs:subClassOf obo:XAO_0000440 .
obo:XAO_0000197 a rdfs:Class ;
rdfs:label "lagena" ;
rdfs:comment "A vestibular structure of the inner ear consisting of a ventral diverticulum off of the sacculus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0006005 a rdfs:Class ;
rdfs:label "perikaryon" ;
rdfs:comment "The portion of a neuronal cell body (cell soma) that excludes the nucleus." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000412 a rdfs:Class ;
rdfs:label "trunk somite 7" ;
rdfs:comment "The 5th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004624 a rdfs:Class ;
rdfs:label "fin vasculature" ;
rdfs:comment "Blood vessel that is part of the fin." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0005090 a rdfs:Class ;
rdfs:label "blastomere D2.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline of the vegetal hemisphere at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005112 .
obo:XAO_0003106 a rdfs:Class ;
rdfs:label "myotome of head somite 3" ;
rdfs:comment "Compartment of head somite 3 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0000235 a rdfs:Class ;
rdfs:label "cardiac mesoderm" ;
rdfs:comment "Two migratory heart primordia that move ventrally during the course of neurulation, and whose fusion begins at the ventral midline at NF stage 16." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000139 a rdfs:Class ;
rdfs:label "peritoneum" ;
rdfs:comment "Serous membrane that forms the lining of the abdominal cavity or the coelom. It covers most of the intra-abdominal organs, supports the abdominal organs, and serves as a conduit for their blood and lymph vessels and nerves. It is composed of a layer of mesothelium." ;
rdfs:subClassOf obo:XAO_0004466 .
obo:XAO_0003061 a rdfs:Class ;
rdfs:label "forelimb skeleton" ;
rdfs:comment "The collection of all skeletal elements in a free forelimb region." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0005036 a rdfs:Class ;
rdfs:label "Eberth-Kastschenko layer" ;
rdfs:comment "A calcified dermal layer that is found between the stratum spongiosum and the stratum compactum of the skin." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000078 a rdfs:Class ;
rdfs:label "blastopore lip" ;
rdfs:comment "The edge of the blastopore. Local invagination is caused by narrowing of bottle cells at the exterior edge of the blastula." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000097 a rdfs:Class ;
rdfs:label "mandibular arch" ;
rdfs:comment "The first of the series of bony or cartilaginous arches that develop in the walls of the mouth cavity and pharynx of the embryo." ;
rdfs:subClassOf obo:XAO_0000096 .
obo:XAO_0004617 a rdfs:Class ;
rdfs:label "dorsolateral neural tube" ;
rdfs:comment "The dorsolateral regions of the neural tube, ventral to the roof plate region and encompassing structurally distinct sensory neurons (more dorsally) and interneurons (in lateral positions)." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000354 a rdfs:Class ;
rdfs:label "posterior palatine artery" ;
rdfs:comment "One of three branches of the internal carotid artery, the palatine artery supplies the mouth region." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0003098 a rdfs:Class ;
rdfs:label "cerebellum" ;
rdfs:comment "A 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." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000080 a rdfs:Class ;
rdfs:label "forelimb region" ;
rdfs:comment "The region from which the forelimb develops, first recognizable at NF stage 48, and distinct by NF stage 49." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003044 a rdfs:Class ;
rdfs:label "endomesoderm" ;
rdfs:comment "Primary germ layer that can give rise to both mesoderm and endoderm." ;
rdfs:subClassOf obo:XAO_0003011 .
obo:XAO_0005095 a rdfs:Class ;
rdfs:label "blastomere V2.2" ;
rdfs:comment "Blastomere which lies in the vegetal hemisphere lateral to V2.1 at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005114 .
obo:XAO_0004323 a rdfs:Class ;
rdfs:label "mandibular head muscle" ;
rdfs:comment "Any of the paired mandibular arch muscles." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0005304 a rdfs:Class ;
rdfs:label "dorsal endomesoderm" ;
rdfs:comment "Dorsal region of early embryonic endomesoderm." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000298 a rdfs:Class ;
rdfs:label "dorsal" ;
rdfs:comment "Spatial concept denoting the back or upper surface of the body." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0004147 a rdfs:Class ;
rdfs:label "vitelline vein" ;
rdfs:comment "One of two veins that run upward at first in front, and subsequently on either side of the intestinal canal. They unite on the ventral aspect of the canal, and beyond this are connected to one another by two anastomotic branches, one on the dorsal, and the other on the ventral aspect of the duodenal portion of the intestine, which is thus encircled by two venous rings; into the middle or dorsal anastomosis the superior mesenteric vein opens. The portions of the veins above the upper ring become interrupted by the developing liver and broken up by it into a plexus of small capillary-like vessels termed sinusoids." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004068 a rdfs:Class ;
rdfs:label "sub-blastoporal endoderm" ;
rdfs:comment "During gastrulation, the vegetal endodermal cells that lie just below the ring of smaller suprablastoral endoderm cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000050 a rdfs:Class ;
rdfs:label "NF stage 37 and 38" ;
rdfs:comment "Nieuwkoop and Faber stage 37/38, corresponding to an embryo of age 2 days, 5 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Stomodeal invagination much deeper, opening round. Both gill rudiments nipple-shaped, a branch of the anterior one indicated. Posterior outline of proctodeum straight, forming very obtuse angle with ventral border of tail myotomes. Melanophores spreading over tail. Length: 5.6 - 6.2 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004295 a rdfs:Class ;
rdfs:label "forelimb stylopod" ;
rdfs:comment "Stylopod (the limb segment closest to the body) that is part of a forelimb." ;
rdfs:subClassOf obo:XAO_0004263 .
obo:XAO_0004084 a rdfs:Class ;
rdfs:label "rhombomere R6" ;
rdfs:comment "The 6th segment of the developing hindbrain, directly bordering the midbrain-hindbrain boundary, and dorsal to branchial arch 4." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0000186 a rdfs:Class ;
rdfs:label "ciliary body" ;
rdfs:comment "Circumferential tissue inside the eye composed of the ciliary muscle and ciliary processes." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005133 a rdfs:Class ;
rdfs:label "oligodendrocyte" ;
rdfs:comment "A class of large neuroglial (macroglial) cells in the central nervous system that form the insulating myelin sheath of axons." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_0004306 a rdfs:Class ;
rdfs:label "thalamus" ;
rdfs:comment "A midline paired symmetrical structure within the brain; the main product of the embryonic diencephalon." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004255 a rdfs:Class ;
rdfs:label "lateral vein" ;
rdfs:comment "Either of the veins that collect blood from the trunk and skin and drain into the subclavian vein." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0005252 a rdfs:Class ;
rdfs:label "obsolete left olfactory pit" .
obo:XAO_0003144 a rdfs:Class ;
rdfs:label "amphibian papilla" ;
rdfs:comment "The principal auditory organ of the frog, which utilizes both mechanical and electrical (hair cell-based) frequency tuning mechanisms for hearing, located near the junction of the utricle and the saccule bones of the inner ear." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000083 a rdfs:Class ;
rdfs:label "oocyte stage I" ;
rdfs:comment "The pre-vitellogenic stage of the developing female gamete." ;
rdfs:subClassOf obo:XAO_1000082 .
obo:XAO_0000023 a rdfs:Class ;
rdfs:label "skin" ;
rdfs:comment "The organ covering the body that consists of the dermis and epidermis." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0004228 a rdfs:Class ;
rdfs:label "lateral abdominal vein" ;
rdfs:comment "Laterally located vein that drains the ventral abdominal wall." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0003155 a rdfs:Class ;
rdfs:label "lymphocyte" ;
rdfs:comment "An achromatic cell of the myeloid or lymphoid lineages capable of ameboid movement, which are found in blood or other tissues and trigger specific immune responses in adaptive immunity." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004191 a rdfs:Class ;
rdfs:label "vagal neural crest" ;
rdfs:comment "One of the 5 distinct and partially overlapping functional domains of the premigratory neural crest. Together with the sacral neural crest cells, they develop into the ganglia of the enteric nervous system, also known as the parasympathetic ganglia. These cells, between the head and trunk, contribute post-cranially to the heart and gut, the chromatophores (pigment cells) of the epidermis, and the majority of the neurons and glial cells of the enteric nervous system. Both vagal and sacral neural crest cells contribute to the enteric nervous system in the hindgut." ;
rdfs:subClassOf obo:XAO_0005327 .
obo:XAO_0004593 a rdfs:Class ;
rdfs:label "ventral pallidum" ;
rdfs:comment "Part of the globus pallidus consisting of the more medial of the two segments." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000207 a rdfs:Class ;
rdfs:label "blastocoel roof" ;
rdfs:comment "The dorsal surface of the blastocoel, the cavity of the blastula." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005058 a rdfs:Class ;
rdfs:label "stratum spongiosum" ;
rdfs:comment "Dermal layer containing loose connective tissue and several types of glands." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000210 a rdfs:Class ;
rdfs:label "spinal ganglion" ;
rdfs:comment "Type of ganglion that is a condensation of sensory neurons on the dorsal root of each spinal nerve. There is one pair of spinal ganglia per myotome, with the spinal ganglia of the trunk region larger and more distinct from each other than those of the tail region." ;
rdfs:subClassOf obo:XAO_0000209 .
obo:XAO_0005010 a rdfs:Class ;
rdfs:label "growth cone" ;
rdfs:comment "Migrating motile tip of a growing nerve cell axon or dendrite." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000175 a rdfs:Class ;
rdfs:label "smooth muscle" ;
rdfs:comment "Involuntary muscle tissue consisting of uninucleate spindle-shaped fibers. Found within the walls of blood vessels, the alimentary tract, bladder, and reproductive tract." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_0000056 a rdfs:Class ;
rdfs:label "hypochord" ;
rdfs:comment "Transient structure that lies immediately ventral to the notochord in the embryo, likely required for the formation of the dorsal aorta. A slight depression marks the future hypochord at NF stage 20 and its segregation from the dorsal endoderm begins at NF stage 24. It progresses from anterior to posterior and is complete by NF stage 28. At NF stage 32 it is present as a dorso-laterally flattened ribbon of yolk-laden cells. It degenerates by apoptosis and by NF stage 43 is no longer detectable as a distinct structure in the trunk region of the tadpole. The most posterior hypochord persists and begins to ossify, fusing with the coccyx to form the urostyle in the pelvic girdle around NF stage 63." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004002 a rdfs:Class ;
rdfs:label "lateral line" ;
rdfs:comment "Any of the sense organs that detect vibrations carried through water. They develop from a specialized series of dorsolateral ectodermal placodes named lateral line placodes." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000470 a rdfs:Class ;
rdfs:label "unicellular gland" ;
rdfs:comment "Any of the large number of glands of the larval skin, particularly common in the fins and adjacent skin of the trunk; also formed in the former frontal gland area on the upper jaw." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0004492 a rdfs:Class ;
rdfs:label "cleavage furrow" ;
rdfs:comment "The physical groove that forms between cells at the first cell division. One-celled oocytes (NF stage 1) undergo cytoplasmic reorganization driven by sperm entry in the animal pole, where the cleavage furrow initiates, and it moves circumferentially along a line of longitude as well as progressing inwards through the cytoplasm, ultimately dividing the fertilized oocyte into two cells of equal size, defining NF stage 2." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005073 a rdfs:Class ;
rdfs:label "mucous gland" ;
rdfs:comment "A gland in which the principal secretory cells are mucus secreting cells." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000101 a rdfs:Class ;
rdfs:label "liver diverticulum" ;
rdfs:comment "An out-pocket of thickened ventral foregut epithelium adjacent to the developing heart. Its anterior portion gives rise to the liver and intrahepatic biliary tree, while the posterior portion forms the gall bladder, hepato-pancreatic duct, hepato-pancreatic progenitor cells and the bile duct." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_1000072 a rdfs:Class ;
rdfs:label "NF stage 60" ;
rdfs:comment "Nieuwkoop and Faber stage 60, corresponding to a tadpole of age about 46 days at 22-24 Celsius and having the following external morphological criteria: N. olfactorius still longer than bulbus olfactorius. Guanophores appearing on lower jaw (adult skin area). Openings of gill chambers still wide. Distal half of fingers of stretched forelimb extending beyond base of hindlimb; forelimb still situated behind level of heart. Adult skin area of base of forelimb covered with guanophores; anterior border of adult skin area on abdomen sharper, reaching up to heart." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000030 a rdfs:Class ;
rdfs:label "vitelline membrane" ;
rdfs:comment "The membrane enveloping the egg or oocyte, lying immediately outside the plasmalemma. It is formed while the oocyte is in the ovary and it separates from the egg to form the fertilization membrane." ;
rdfs:subClassOf obo:XAO_0004005 .
obo:XAO_0004217 a rdfs:Class ;
rdfs:label "motor neuron" ;
rdfs:comment "An efferent neuron that passes from the central nervous system or a ganglion toward or to a muscle and conducts an impulse that causes movement." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0004161 a rdfs:Class ;
rdfs:label "middle cerebral vein" ;
rdfs:comment "Type of vein that crosses the head dorsally at NF stage 37/38 and drains into the vena capitis lateralis." ;
rdfs:subClassOf obo:XAO_0004160 .
obo:XAO_0000120 a rdfs:Class ;
rdfs:label "external gill" ;
rdfs:comment "The primary respiration organ in some species of tadpoles, whose function is the extraction of oxygen from water and the excretion of carbon dioxide. The microscopic structure of a gill is such that it presents a very large surface area to the external environment. Gills usually consist of thin filaments of tissue, branches, or slender tufted processes which have a highly folded surface to increase surface area. A high surface area is crucial for effective gas exchange." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0005159 a rdfs:Class ;
rdfs:label "cardia" ;
rdfs:comment "The section of the stomach which is attached to the esophagus and contains the cardiac glands." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005127 a rdfs:Class ;
rdfs:label "anterior foregut" ;
rdfs:comment "Embryonic structure that consists of the anterior part of the foregut and develops into the esophagus and trachea." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005111 a rdfs:Class ;
rdfs:label "blastomere V2.2.2" ;
rdfs:comment "Blastomere which lies lateral to blastomere V2.1.2, anterior to its sister cell, blastomere V2.2.1, in the third tier of blastomeres. It contributes cells to the epidermis, tail fin, cranial ganglia, neural crest, hindbrain, spinal cord, otic vesicle, pharyngeal mesoderm, somites, foregut, hindgut, archenteron roof, and proctodeum." ;
rdfs:subClassOf obo:XAO_0005114 .
obo:XAO_0005278 a rdfs:Class ;
rdfs:label "obsolete left part of brain" .
obo:XAO_0004362 a rdfs:Class ;
rdfs:label "ceratobranchial IV" ;
rdfs:comment "The cartilaginous element below the epibranchial in branchial arch 4." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0003170 a rdfs:Class ;
rdfs:label "neurocranium" ;
rdfs:comment "Anatomical cluster that consists of the cartilages and bones that surround the brain." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0003225 a rdfs:Class ;
rdfs:label "retinal inner plexiform layer" ;
rdfs:comment "The plexiform layer of the retina positioned between the inner nuclear layer and the ganglion cell layer and containing the dendrites of retinal ganglion cells and processes of bipolar and amacrine cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005505 a rdfs:Class ;
rdfs:label "nasal region" ;
rdfs:comment "Head region including the nostrils and surrounding tissue." ;
rdfs:subClassOf obo:XAO_0000040 .
obo:XAO_0005207 a rdfs:Class ;
rdfs:label "posterior side" ;
rdfs:comment "An anatomical region that is the entire part of an anatomical structure posterior to a transverse plane and bounded on one side by the same transverse plane." ;
rdfs:subClassOf obo:XAO_0005205 .
obo:XAO_0004334 a rdfs:Class ;
rdfs:label "m. quadrato-hyoangularis" ;
rdfs:comment "Hyoid arch muscle that connects Meckel's cartilage with the palatoquadrate and supports the opening of the mouth by depressing Meckel's cartilage." ;
rdfs:subClassOf obo:XAO_0004324 .
obo:XAO_0003006 a rdfs:Class ;
rdfs:label "male organism" ;
rdfs:comment "Gonochoristic organism that can produce male gametes." ;
rdfs:subClassOf obo:XAO_0003004 .
obo:XAO_0005230 a rdfs:Class ;
rdfs:label "larval alimentary system" ;
rdfs:comment "The alimentary system of a postembryonic, hatched or immature tadpole, prior to metamorphosis." ;
rdfs:subClassOf obo:XAO_0000125 .
obo:XAO_0006015 a rdfs:Class ;
rdfs:label "breeding gland" ;
rdfs:comment "A modified mucous gland that is part of the nuptial pad and aids the male frog in maintaining amplexus during mating." ;
rdfs:subClassOf obo:XAO_0005072 .
obo:XAO_0004465 a rdfs:Class ;
rdfs:label "endolymphatic duct" ;
rdfs:comment "Canal that connects the membranous labyrinth of the ear with the endolymphatic sac." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_0004105 a rdfs:Class ;
rdfs:label "pronephric tubule" ;
rdfs:comment "Any of bilaterally paired tubes that perform the resorptive and excretory functions of the pronephros, and which connect the pronephric glomeruli to the pronephric ducts." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005029 a rdfs:Class ;
rdfs:label "neuropil of the optic tectum" ;
rdfs:comment "Layer of the optic tectum that mainly consists of ascending sensory axons and tectal dendrites." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000423 a rdfs:Class ;
rdfs:label "tail somite 15" ;
rdfs:comment "The 13th somite located posterior to the head. This somite is resorbed at metamorphosis." ;
rdfs:subClassOf obo:XAO_0003143 .
obo:XAO_0004001 a rdfs:Class ;
rdfs:label "portion of organism substance" ;
rdfs:comment "Material anatomical entity in a gaseous, liquid, semisolid or solid state; produced by anatomical structures or derived from inhaled and ingested substances that have been modified by anatomical structures as they pass through the body." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0004013 a rdfs:Class ;
rdfs:label "cartilage element" ;
rdfs:comment "Skeletal element that is composed of cartilage tissue and may be permanent or transient." ;
rdfs:subClassOf obo:XAO_0004012 .
obo:XAO_0003245 a rdfs:Class ;
rdfs:label "ectodermal cell" ;
rdfs:comment "A cell of the outer of the three germ layers of the embryo." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004427 a rdfs:Class ;
rdfs:label "m. levator mandibulae longus superior primordium" ;
rdfs:comment "The presumptive cells of the levator mandibulae longus superior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004351 a rdfs:Class ;
rdfs:label "laryngeal muscle" ;
rdfs:comment "Type of muscle that attaches to the larynx." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0000165 a rdfs:Class ;
rdfs:label "adrenal cortex" ;
rdfs:comment "Situated along the perimeter of the adrenal gland, the adrenal cortex mediates the stress response through the production of mineralocorticoids and glucocorticoids, including aldosterone and cortisol respectively. It is also a secondary site of androgen synthesis. The perimeter region of the adrenal gland, the site of steroid synthesis." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004200 a rdfs:Class ;
rdfs:label "non-mineralized chondroid tissue" ;
rdfs:comment "Chondroid tissue that is not mineralized." ;
rdfs:subClassOf obo:XAO_0004038 .
obo:XAO_0004389 a rdfs:Class ;
rdfs:label "oculomotor motornucleus" ;
rdfs:comment "Ganglion in the midbrain that gives rise to the fibers of the oculomotor nerve." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0006000 a rdfs:Class ;
rdfs:label "basal cell" ;
rdfs:comment "A cell of the inner layer of the epidermis." ;
rdfs:subClassOf obo:XAO_0004621 .
obo:XAO_0004042 a rdfs:Class ;
rdfs:label "muscular system" ;
rdfs:comment "Anatomical system comprising the sum of all muscles in the body." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0003017 a rdfs:Class ;
rdfs:label "fibroblast" ;
rdfs:comment "A connective tissue cell that secretes an extracellular matrix rich in collagen and other macromolecules." ;
rdfs:subClassOf obo:XAO_0003255 .
obo:XAO_0004053 a rdfs:Class ;
rdfs:label "skeleton" ;
rdfs:comment "Anatomical cluster that consists of all the skeletal elements (eg, bone, cartilage, and teeth) of the body." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000213 a rdfs:Class ;
rdfs:label "auditory tube" ;
rdfs:comment "The narrow tube connecting the middle ear with the pharynx, through which air flows to equalize pressure on either side of the tympanic membrane." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005062 a rdfs:Class ;
rdfs:label "proepicardium" ;
rdfs:comment "An embryonic progenitor cell type that comprises a population that provides the epicardium, the majority of the cardiac interstitium, the coronary vasculature, and possibly some cardiomyocytes." ;
rdfs:subClassOf obo:XAO_0005033 .
obo:XAO_0005285 a rdfs:Class ;
rdfs:label "spindle microtubule" ;
rdfs:comment "Any microtubule that is part of a mitotic or meiotic spindle; anchored at one spindle pole." ;
rdfs:subClassOf obo:XAO_0005122 .
obo:XAO_0000332 a rdfs:Class ;
rdfs:label "mesonephric late proximal tubule" ;
rdfs:comment "Structure that is the mesonephros nephron's equivalent to the straight proximal segment of a metanephric nephron." ;
rdfs:subClassOf obo:XAO_0000148 .
obo:XAO_0003261 a rdfs:Class ;
rdfs:label "olfactory epithelial support cell" ;
rdfs:comment "A non-ciliated columnar cell that extends from the epithelial free margin to the basement membrane of the olfactory epithelium." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004064 a rdfs:Class ;
rdfs:label "ventral tail fin" ;
rdfs:comment "The ventral part of the tail fin." ;
rdfs:subClassOf obo:XAO_0000002 .
obo:XAO_0000193 a rdfs:Class ;
rdfs:label "osseous labyrinth" ;
rdfs:comment "Structure consisting of the vestibule, lagena, and semicircular canal, cavities that are hollowed out of the substance of the bone, and lined by periosteum. They contain a clear fluid, the perilymph, in which the membranous labyrinth is situated." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000271 a rdfs:Class ;
rdfs:label "somatic layer of lateral plate mesoderm" ;
rdfs:comment "Layer of lateral plate mesoderm that forms the future body wall; it underlies the ectoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0003181 a rdfs:Class ;
rdfs:label "branchial arch skeleton 1" ;
rdfs:comment "Skeletal and cartilaginous elements of the first branchial or pharyngeal arch." ;
rdfs:subClassOf obo:XAO_0003180 .
obo:XAO_0003117 a rdfs:Class ;
rdfs:label "myotome of trunk somite 5" ;
rdfs:comment "Compartment of trunk somite 5 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0000058 a rdfs:Class ;
rdfs:label "somite" ;
rdfs:comment "Any of the approximately 45 bilaterally paired blocks of mesoderm cells, lying on either side of the notochord and neural tube, and forming sequentially starting at the head during development of the embryo. Together they give rise to the axial skeleton (from the sclerotome), associated musculature (from the myotome), and dermis (from the dermatome)." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000445 a rdfs:Class ;
rdfs:label "taste bud" ;
rdfs:comment "The organ used for chemoreception." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005267 a rdfs:Class ;
rdfs:label "embryonic thrombocyte" ;
rdfs:comment "A cell type that produces platelets and coagulating factors that react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot; and that, in embryos, emerge from the ventral mesoderm, just anterior to the ventral blood island. Embryonic thrombocytes are identified by cd41/itga2b.1 gene expression. Additional waves of emergence during development may occur but have not yet been described." ;
rdfs:subClassOf obo:XAO_0005266 .
obo:XAO_0000228 a rdfs:Class ;
rdfs:label "optic vesicle" ;
rdfs:comment "The evagination of neurectoderm, which has pinched off from the anterior neural keel, that precedes formation of the optic cup." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004495 a rdfs:Class ;
rdfs:label "iliac process primordium" ;
rdfs:comment "The presumptive cells of the iliac process." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005148 a rdfs:Class ;
rdfs:label "m. depressor mandibulae" ;
rdfs:comment "A muscle acting to open the lower jaw, which runs from the caudal otic region downwards, passing over the stapes." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0004031 a rdfs:Class ;
rdfs:label "ligament" ;
rdfs:comment "Dense regular connective tissue connecting two or more adjacent skeletal elements or supporting an organ." ;
rdfs:subClassOf obo:XAO_0004030 .
obo:XAO_0004403 a rdfs:Class ;
rdfs:label "fibrocellular pad" ;
rdfs:comment "Regenerative tissue that develops and covers cut bone in the tadpole." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0000376 a rdfs:Class ;
rdfs:label "omphalomesenteric vein" ;
rdfs:comment "Any of the veins in the embryo that return blood from the yolk sac to the heart or later to the portal vein." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000384 a rdfs:Class ;
rdfs:label "medial cardinal vein" ;
rdfs:comment "Vein that gives rise to the interrenal vein and pronephric sinus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004543 a rdfs:Class ;
rdfs:label "central canal" ;
rdfs:comment "Spinal cord structure that is part of the ventricular system and is filled with cerebral-spinal fluid and runs the length of the spinal cord." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0006026 a rdfs:Class ;
rdfs:label "common lymphocyte progenitor" ;
rdfs:comment "An oligopotent progenitor cell committed to the lymphoid lineage." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005100 a rdfs:Class ;
rdfs:label "blastomere D2.1.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline in the fourth tier of blastomeres. It contributes largely to endodermal and mesodermal structures including the branchial and lateral plate mesoderm, foregut, liver, hindgut, some of the trunk, and a small number of cells contributing to neural crest of ectodermal origin." ;
rdfs:subClassOf obo:XAO_0005112 .
obo:XAO_0004481 a rdfs:Class ;
rdfs:label "forelimb digit 5" ;
rdfs:comment "The most anterior digit of a forelimb, consisting of a single metatarsal, 2 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003036 .
obo:XAO_0000429 a rdfs:Class ;
rdfs:label "cranial nerve" ;
rdfs:comment "Any of the major paired nerves of the head or cephalic region. Twelve pairs of cranial nerves exit/enter the cranium through openings in the skull. The nerves contain efferent axons with motor and glandular functions, as well as afferent axons from cranial ganglia with sensory functions. They are numbered in a rostral to caudal sequence, with the exception of the lateral line nerves." ;
rdfs:subClassOf obo:XAO_0005309 .
obo:XAO_0000182 a rdfs:Class ;
rdfs:label "conjunctiva" ;
rdfs:comment "A clear mucous membrane consisting of cells and underlying basement membrane that covers the sclera and lines the inside of the eyelids. It is made of epithelial tissue." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003092 a rdfs:Class ;
rdfs:label "trigeminal nerve" ;
rdfs:comment "Cranial nerve that has three branches: the ophthalmic branch that supplies the skin of the nose and upper jaw, and the maxillary and mandibular branches that supply the lower jaw." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0004384 a rdfs:Class ;
rdfs:label "peripheral vegetal yolk mass" ;
rdfs:comment "Peripherally located part of the vegetal cell mass of prospective endoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0003039 a rdfs:Class ;
rdfs:label "compound organ component" ;
rdfs:comment "Multi-tissue structure that is part of a compound organ." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004628 a rdfs:Class ;
rdfs:label "posterior ventral blood island" ;
rdfs:comment "The erythroid-forming compartment of the ventral blood island." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000048 a rdfs:Class ;
rdfs:label "neural crest" ;
rdfs:comment "A group of ectoderm cells that delaminate from the area between the neuroectoderm/non-neural ectoderm domains. They undergo epithelial-to-mesenchymal tranformation (EMT) and migrate to give several different lineages of adult cells. Originating from different positions along the anterior-posterior axis, they develop into various tissues. These regions of neural crest can be divided into five main functional domains, which include the cranial, trunk, vagal and sacral neural crest, and cardiac neural crest. Neural crest cells are considered multipotent, and as they have the limited capacity for self renewal, they are regarded as stem cell-like." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004505 a rdfs:Class ;
rdfs:label "periosteum (sensu osteogenic layer)" ;
rdfs:comment "The inner layer of the periosteum, containing osteoblasts." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0004211 a rdfs:Class ;
rdfs:label "facial epibranchial placode" ;
rdfs:comment "The most anterior of the epibranchial placodes, associated with the 1st pharyngeal cleft and contributing to the distal ganglia of cranial nerve VII (facial nerve)." ;
rdfs:subClassOf obo:XAO_0000284 .
obo:XAO_0000239 a rdfs:Class ;
rdfs:label "hepato-pancreatic duct" ;
rdfs:comment "The pancreatic duct and common bile duct together, which enter the descending duodenum." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_0006057 a rdfs:Class ;
rdfs:label "obsolete erythrocyte" .
obo:XAO_1000007 a rdfs:Class ;
rdfs:label "tailbud stage" ;
rdfs:comment "Embryonic stage during which neurulation is completed and tail formation begins, visible by an emerging tail primordium; comprising Nieuwkoop and Faber stages 22 to 44 (feeding), including the beginning of hatching (NF stage 35/36)." ;
rdfs:subClassOf obo:XAO_1000012 .
obo:XAO_0000156 a rdfs:Class ;
rdfs:label "female genitalia" ;
rdfs:comment "Anatomical system comprising the organs of the female reproductive system." ;
rdfs:subClassOf obo:XAO_0000142 .
obo:XAO_0005308 a rdfs:Class ;
rdfs:label "atrioventricular valve" ;
rdfs:comment "A cardial valve in the atrioventricular region that separates the atrium from the ventricle and prevents backflow from the ventricles into the atria during systole." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004232 a rdfs:Class ;
rdfs:label "spiracle" ;
rdfs:comment "The exit for respiratory water in the tadpole." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0004093 a rdfs:Class ;
rdfs:label "profundal placode" ;
rdfs:comment "An embryonic structure positioned halfway between the prospective eye and ear, adjacent to the future midbrain-hindbrain boundary. The profundal and the trigeminal ganglia are separate distally but fused at their proximal end as they condense around NF stage 24." ;
rdfs:subClassOf obo:XAO_0004620 .
obo:XAO_0004024 a rdfs:Class ;
rdfs:label "craniofacial region" ;
rdfs:comment "Anatomical cluster that encompasses the cranium and facial structures." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004532 a rdfs:Class ;
rdfs:label "anterior amygdala" ;
rdfs:comment "A nucleus comprising the anterior aspect of the amygdala, adjacent to the basal forebrain, and involved in receiving olfactory information." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004400 a rdfs:Class ;
rdfs:label "regenerating zeugopod skeleton" ;
rdfs:comment "Tissue consisting of a cartilaginous rod or rods of a regenerating zeugopod segment of a limb." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0004243 a rdfs:Class ;
rdfs:label "femoral vein" ;
rdfs:comment "Either of the primary veins in the hindlimbs that collect blood from the hindlimb region." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_1000018 a rdfs:Class ;
rdfs:label "NF stage 8" ;
rdfs:comment "Nieuwkoop and Faber stage 8 (128-cell stage), corresponding to an embryo of age 5 hr at 22-24 Celsius and having the following external morphological criteria: Medium-cell blastula stage. Surface not yet entirely smooth. Border of animal pigment cap more diffuse at dorsal than at lateral and ventral sides. Gradual transition in cell size from animal to vegetative pole. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_1000004 a rdfs:Class ;
rdfs:label "cleavage stage" ;
rdfs:comment "Embryonic stage during which the zygote undergoes synchronous divisions into 2, 4, 8, 16, etc. blastomeres, comprising Nieuwkoop and Faber stages 2 to 6.5." ;
rdfs:subClassOf obo:XAO_1000012 .
obo:XAO_1000061 a rdfs:Class ;
rdfs:label "NF stage 49" ;
rdfs:comment "Nieuwkoop and Faber stage 49, corresponding to a tadpole of age about 12 days at 22-24 Celsius and having the following external morphological criteria: Melanophores usually appearing around thymus gland and nerves and blood vessels of head; xantophores appearing on pericard. Forelimb bud distinct. Hindlimb bud somewhat longer, distal outline still circular, no constrictions at base. Melanophores appearing on dorsal and ventral fin. Length: 17 - 23 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0005296 a rdfs:Class ;
rdfs:label "adherens junction" ;
rdfs:comment "A cell junction at which anchoring proteins (cadherins or integrins) extend through the plasma membrane and are attached to actin filaments." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000387 a rdfs:Class ;
rdfs:label "hepatic vein" ;
rdfs:comment "Vein that carries blood away from the liver." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0003055 a rdfs:Class ;
rdfs:label "hematopoietic stem cell" ;
rdfs:comment "A stem cell from which all cells of the lymphoid and myeloid lineages develop, including blood cells and cells of the immune system." ;
rdfs:subClassOf obo:XAO_0003054 .
obo:XAO_0004416 a rdfs:Class ;
rdfs:label "claw primordium" ;
rdfs:comment "Portion of tissue consisting of unkeratinized cells at the most distal end of a developing digit and which will become a claw." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000054 a rdfs:Class ;
rdfs:label "NF stage 42" ;
rdfs:comment "Nieuwkoop and Faber stage 42, corresponding to an embryo of age 3 days, 8 hr at 22-24 Celsius and having the following external morphological criteria: Beginning of formation of opercular folds. Torsion of intestine about 90 degrees; proctodeum connected with yolk mass by short horizontal intestinal tube. Length: 7.0 - 7.7 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004180 a rdfs:Class ;
rdfs:label "olfactory bulb" ;
rdfs:comment "Part of the telencephalon, comprising paired anterior outgrowths of either of the cerebral hemispheres in which the olfactory nerve exits. The olfactory bulbs begin to fuse at NF stage 50, and fusion is complete around NF stage 58. The cerebral vein loops around the olfactory bulb by NF stage 43." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000462 a rdfs:Class ;
rdfs:label "dorsal lateral line" ;
rdfs:comment "The dorsal-most part of the sensory system on the surface of the tadpole consisting of small sensory patches (neuromasts) distributed in discrete lines over the body surface. The lateral line system is stimulated by local water displacements and vibrations, and detects propulsion of the tadpole through the water, as well as facilitating schooling, prey capture, and predator and obstacle avoidance." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0004390 a rdfs:Class ;
rdfs:label "dorsal thalamus" ;
rdfs:comment "Multi-tissue structure that is the dorsal part of the thalamus and emerges ventral to the caudal portion of the ventral habenular nucleus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005047 a rdfs:Class ;
rdfs:label "rostral tuberal region" ;
rdfs:comment "The rostral zone of the tuberal region of the hypothalamus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005315 a rdfs:Class ;
rdfs:label "retinal vein" ;
rdfs:comment "Vein that is part of the periocular region." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004378 a rdfs:Class ;
rdfs:label "palatoquadrati" ;
rdfs:comment "Cartilaginous element comprising the dorsal component of the mandibular arch." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000294 a rdfs:Class ;
rdfs:label "blastocoel" ;
rdfs:comment "The cavity of the blastula, a closed space that is invaded by early mesenchyme and later obliterated by the enlarging archenteron. It forms during embryogenesis when a zygote (a fertilized ovum) divides into many cells through mitosis." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000427 a rdfs:Class ;
rdfs:label "gasserian ganglion" ;
rdfs:comment "Sensory ganglion of the trigeminal nerve." ;
rdfs:subClassOf obo:XAO_0000209 .
obo:XAO_0000474 a rdfs:Class ;
rdfs:label "choroid fissure" ;
rdfs:comment "Part of the eye that forms during the transition from optic vesicle to optic cup as a groove at the lateroventral edge of the optic vesicle, which expands medially. The ventral edges of the optic vesicle then wrap around the fissure and fuse with one another, ultimately leading to a channel through which blood vessels and optic nerve fibres pass." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005234 a rdfs:Class ;
rdfs:label "small secretory cell" ;
rdfs:comment "One of the four cell types that are found in bilayered epithlium of the larval epidermis (the others being goblet cells, multicilliated cells, and ionocytes) and have an abundance of large apical secretory vesicles and secrete a glyocoprotein with antimicrobial properties." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003236 a rdfs:Class ;
rdfs:label "barrier epithelial cell" ;
rdfs:comment "A surface epithelial cell of stratified squamous epithelium of cornea, tongue, oral cavity, esophagus or cloaca." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0003149 a rdfs:Class ;
rdfs:label "primordial germ cell" ;
rdfs:comment "Cell that arises from the endodermal germ plasm and can be detected by NF stage 28 in the endodermal mass. At NF stages 42-47, PGCs migrate to the two genital ridges, which are the first rudiments of the gonads. By NF stage 50, the PGCs begin to loose their yolky material. In males, starting at NF stage 52, PGCs migrate from the genital ridge cortical region into the medullary tissue, where they will form primary spermatogonia at sexual maturity. In females, the medullary tissue remains free of PGCs; they instead embed in the cortical region and multiply to form primary oogonia, which will mature into ova at sexual maturity." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0004395 a rdfs:Class ;
rdfs:label "central vegetal yolk mass" ;
rdfs:comment "Centrally located part of the vegetal cell mass of prospective endoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000254 a rdfs:Class ;
rdfs:label "visceral pouch 4" ;
rdfs:comment "Fourth of the pharyngeal (endodermal) evaginations between the visceral arches from which the Eustachian tube is derived; pouches 2-4 open as gill slits." ;
rdfs:subClassOf obo:XAO_0000282 .
obo:XAO_0004046 a rdfs:Class ;
rdfs:label "odontoid tissue" ;
rdfs:comment "Skeletal tissue that is part of the exoskeleton and derived from an odontogenic papilla." ;
rdfs:subClassOf obo:XAO_0004038 .
obo:XAO_0000034 a rdfs:Class ;
rdfs:label "hatching gland" ;
rdfs:comment "A Y-shaped array of unicelluar glands on the top of the head, the open end of which faces anteriorly, that secrete an enzyme that dissolves or weakens the egg jelly and facilitates hatching. Presumptive cells of the hatching gland are present by the end of gastrualtion (NF stage 12.5) and differentiated cells start to form after neurulation is complete (NF stage 21)." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_1000068 a rdfs:Class ;
rdfs:label "NF stage 56" ;
rdfs:comment "Nieuwkoop and Faber stage 56, corresponding to a tadpole of age about 38 days at 22-24 Celsius and having the following external morphological criteria: Elbow and wrist clearly indicated; length of free parts of fingers 3 to 4 times their breadth. Length of cartilages of 4th and 5th toe about 6 times their breadth. Length: 70 - 100 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003188 a rdfs:Class ;
rdfs:label "proximal" ;
rdfs:comment "Spatial concept denoting a part of the body that is closer to the center of the body than another part." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0000257 a rdfs:Class ;
rdfs:label "oral evagination" ;
rdfs:comment "An outpocketing of the foregut ventral to the infundibulum and the hypophysis. The walls surrounding this cavity are composed of endoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005155 a rdfs:Class ;
rdfs:label "archenteron roof midline" ;
rdfs:comment "Anatomical line that divides the archenteron roof into right and left halves." ;
rdfs:subClassOf obo:XAO_0004003 .
obo:XAO_0004205 a rdfs:Class ;
rdfs:label "gall bladder primordium" ;
rdfs:comment "A sac-like cavity ventral to the liver, lying in the sub-mesodermal space and closed by a thin sheet of ectodermal cells, from which the future gall bladder develops." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004482 a rdfs:Class ;
rdfs:label "epicardial precursor cell" ;
rdfs:comment "Neural crest-derived cell type that gives rise to the epicardium." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000153 a rdfs:Class ;
rdfs:label "urethra" ;
rdfs:comment "Anatomical structure consisting of a tube carries urine from the urinary bladder to the outside of the body." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003229 a rdfs:Class ;
rdfs:label "epaxial muscle" ;
rdfs:comment "Trunk muscle that lies dorsal to the horizontal septum of the vertebrae." ;
rdfs:subClassOf obo:XAO_0000174 .
obo:XAO_0004438 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium II primordium" ;
rdfs:comment "The presumptive cells of the levator arcuum branchialium II muscles." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004461 a rdfs:Class ;
rdfs:label "circumpharyngeal ridge" ;
rdfs:comment "Site above the branchial arch complex where vagal neural crest cells temporarily arrest their migration before entering the pharyngeal arches and heart." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000283 a rdfs:Class ;
rdfs:label "pupil" ;
rdfs:comment "A hole located in the center of the iris of the eye that allows light to enter the retina." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0005314 a rdfs:Class ;
rdfs:label "prootic bone" ;
rdfs:comment "Either of the paired endochondral bones forming the anterior and lateral walls of the otic capsules." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0000027 a rdfs:Class ;
rdfs:label "cranial ganglion" ;
rdfs:comment "Ganglion that is located in the head." ;
rdfs:subClassOf obo:XAO_0000209 .
obo:XAO_0000394 a rdfs:Class ;
rdfs:label "pulmonary vein" ;
rdfs:comment "Any of the veins that collect blood from the lungs and some small vesicles received from the esophagus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0003260 a rdfs:Class ;
rdfs:label "nucleate erythrocyte" ;
rdfs:comment "An erythrocyte (red blood cell) which has a nucleus." ;
rdfs:subClassOf obo:XAO_0004150 .
obo:XAO_0005141 a rdfs:Class ;
rdfs:label "pars externa of the stapes" ;
rdfs:comment "A cartilaginous extension of the stapes that expands into a cartilaginous tympanic disk." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0006011 a rdfs:Class ;
rdfs:label "iridosome" ;
rdfs:comment "The subcellular component of iridophores with give these pigment cells their iridescent qualities." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003199 a rdfs:Class ;
rdfs:label "lymphatic system" ;
rdfs:comment "Part of the circulatory system that consists of a series of vessels that collect blood (exclusive of erythrocytes) which seeps through capillary walls and return it to the veins. The lymphatic system of vasculature drains lymph fluid from the tissue spaces of most organs and returns it to the blood vasculature for recirculation. The lymphatic sytem functions in immune responses. Anurans generate a lot of lymphatic fluid, largely as a consequence of their very leaky vasculature and high interstitial compliance. Lymph is ultimately pumped into the venous system by paired, dorsally located lymph hearts. Hedrick et al (2007) showed that lung inflation and deflation assists lymph movement. Lymph is moved during lung deflation to the subvertebral sac from anterior and posterior lymph sacs. During lung inflation, increased lymph sac pressure moves lymph to axillary regions, where lymph hearts can return lymph to the vascular space." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0005054 a rdfs:Class ;
rdfs:label "nucleus reticularis inferior" ;
rdfs:comment "Inferior nucleus of the reticular nucleus of the brain stem." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004355 a rdfs:Class ;
rdfs:label "m. rectus superior" ;
rdfs:comment "Muscle in the orbit, the primary function is of which is elevation." ;
rdfs:subClassOf obo:XAO_0004327 .
obo:XAO_0005067 a rdfs:Class ;
rdfs:label "typhlosole" ;
rdfs:comment "A longitudinal fold of the wall projecting into the cavity of the intestine." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006004 a rdfs:Class ;
rdfs:label "neuronal cell body" ;
rdfs:comment "The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites." ;
rdfs:subClassOf obo:XAO_0006003 .
obo:XAO_0005249 a rdfs:Class ;
rdfs:label "ventral posterior hindgut endoderm" ;
rdfs:comment "Ventral part of the posterior hindgut endoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004366 a rdfs:Class ;
rdfs:label "facies hyoidis of the palatoquadrate" ;
rdfs:comment "One of the cartilaginous surfaces of the tadpole jaw." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000361 a rdfs:Class ;
rdfs:label "arteria iliaca communis" ;
rdfs:comment "The blood vessel that bifurcates from the aorta, and supplies the abdominal and pelvic regions." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0000301 a rdfs:Class ;
rdfs:label "deep" ;
rdfs:comment "Spatial concept denoting extension relatively far inward." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0003256 a rdfs:Class ;
rdfs:label "mucus secreting cell" ;
rdfs:comment "A type of epithelial cell, found in the epidermis and digestive system, whose function is to secrete mucin, which dissolves in water to form protective mucus." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000336 a rdfs:Class ;
rdfs:label "heart primordium" ;
rdfs:comment "The fused aspects of ventral mesoderm, which have migrated from either side of the prechordal plate, and fused ventrally, just behind the cement gland. They give rise to the endocardium at NF stage 27/28." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004500 a rdfs:Class ;
rdfs:label "rib" ;
rdfs:comment "Any of the bony lateral projections from the presacral veterebrae of the anterior trunk region, enabling the lungs to expand and thus facilitate breathing by expanding the chest cavity. They serve to protect the lungs, heart, and other internal organs of the thorax." ;
rdfs:subClassOf obo:XAO_0004020 .
obo:XAO_0006016 a rdfs:Class ;
rdfs:label "subcapsular liver" ;
rdfs:comment "Region of liver parenchyma immediately below the capsule. This region is frequently specified in pathology diagnoses. It is thought to be the principal hematopoietic site of Xenopodinae species from early development and, in case of certain species, into adulthood." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005040 a rdfs:Class ;
rdfs:label "anterior semicircular canal" ;
rdfs:comment "The anterior (superior) of the two vertically oriented semicircular canals, which are situated at right angles to each other." ;
rdfs:subClassOf obo:XAO_0000198 .
obo:XAO_0004560 a rdfs:Class ;
rdfs:label "lateral funiculus" ;
rdfs:comment "Region of spinal cord white matter that is both ventral to the dorsal root and dorsal to the ventral root." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_1000091 a rdfs:Class ;
rdfs:label "climax stage" ;
rdfs:comment "Metamorphosing tadpole stage during which tail resorption occurs, comprising Nieuwkoop and Faber stages 58 to 66." ;
rdfs:subClassOf obo:XAO_1000079 .
obo:XAO_0004061 a rdfs:Class ;
rdfs:label "dorsal fin margin" ;
rdfs:comment "Fin margin which is part of the dorsal fin." ;
rdfs:subClassOf obo:XAO_0005171 .
obo:XAO_0000052 a rdfs:Class ;
rdfs:label "cardinal vein" ;
rdfs:comment "The paired main vein, departing from the sinus venous, the fused heart primordium, it runs posteriorly down length of the embryo." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004449 a rdfs:Class ;
rdfs:label "m. rectus anterior primordium" ;
rdfs:comment "The presumptive cells of the rectus anterior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000289 a rdfs:Class ;
rdfs:label "late distal tubule" ;
rdfs:comment "Pronephric segment immediately posterior to the early distal tubule and anterior to the pronephric duct." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003218 a rdfs:Class ;
rdfs:label "retinal outer plexiform layer" ;
rdfs:comment "The layer within the retina where the bipolar cells synapse with the photoreceptor cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000079 a rdfs:Class ;
rdfs:label "prechordal plate" ;
rdfs:comment "Mesodermal structure that lies anterior to the notochord and gives rise to head mesoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_1000080 a rdfs:Class ;
rdfs:label "late tailbud stage" ;
rdfs:comment "Tailbud stage that refers to the later events associated with this stage, comprising Nieuwkoop and Faber stages 29/30 to 44." ;
rdfs:subClassOf obo:XAO_1000007 .
obo:XAO_0001020 a rdfs:Class ;
rdfs:label "elastica externa" ;
rdfs:comment "Notochordal membrane covering derived from notochordal epithelium. Its first indication is at NF stage 24, and it is a distinct membrane by NF stage 28." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005152 a rdfs:Class ;
rdfs:label "m. cucullaris" ;
rdfs:comment "A muscle that originates on the otic capsule and adjacent tympanic annulus, and inserts on the pectoral girdle." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0000198 a rdfs:Class ;
rdfs:label "semicircular canal" ;
rdfs:comment "Any of the three fluid-filled ducts that loop from the utriculus in the inner ear, and help detect movement and maintain balance." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006040 a rdfs:Class ;
rdfs:label "osteocyte" ;
rdfs:comment "A mature osteoblast that has become embedded in the bone matrix. These cells occupy a small cavity, called lacuna, in the matrix and are connected to adjacent osteocytes via protoplasmic projections called canaliculi." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_1000078 a rdfs:Class ;
rdfs:label "NF stage 66" ;
rdfs:comment "Nieuwkoop and Faber stage 66, corresponding to a tadpole of age about 58 days at 22-24 Celsius and having the following external morphological criteria: Border lines between adult skin areas disappeared. Tail only a very small triangle, no longer visible from ventral side." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003114 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 2" ;
rdfs:comment "Compartment of trunk somite 2 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004493 a rdfs:Class ;
rdfs:label "pelvic girdle primordium" ;
rdfs:comment "The presumptive cells of the pelvic girdle." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004407 a rdfs:Class ;
rdfs:label "proximal mesenchyme" ;
rdfs:comment "Mesenchyme that occupies the proximal region of a limb bud." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0005223 a rdfs:Class ;
rdfs:label "postero-dorsal region" ;
rdfs:comment "Anatomical region that overlaps the posterior and dorsal regions of the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000261 a rdfs:Class ;
rdfs:label "pigment layer" ;
rdfs:comment "Outer layer of the developing optic vesicle, which contains pigmented epithelium." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006022 a rdfs:Class ;
rdfs:label "monocyte" ;
rdfs:comment "Myeloid mononuclear recirculating lymphocyte (a.k.a. a leukocyte) that can act as a precursor of tissue macrophages, osteoclasts, and some populations of tissue dendritic cells." ;
rdfs:subClassOf obo:XAO_0003155 , obo:XAO_0004148 .
obo:XAO_0000276 a rdfs:Class ;
rdfs:label "splanchnic layer of lateral plate mesoderm" ;
rdfs:comment "Layer of lateral plate mesoderm that forms the circulatory system and future gut wall; it overlies endoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000459 a rdfs:Class ;
rdfs:label "infraorbital lateral line" ;
rdfs:comment "Lateral line situated along the posterior and ventral margin of the eye." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0005303 a rdfs:Class ;
rdfs:label "anterior endoderm" ;
rdfs:comment "Anterior region of the developing endoderm." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004501 a rdfs:Class ;
rdfs:label "apoptotic cell" ;
rdfs:comment "A cell that is in the process of programmed cell death. The process is characterized by morphological changes (e.g. blebbing, cell shrinkage, nuclear fragmentation, chromatin condensation, and chromosomal DNA fragmentation) ending in cell death." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005051 a rdfs:Class ;
rdfs:label "retromammillary area" ;
rdfs:comment "Hypothalamic region that with the mammillary nuclei forms the mammillary complex." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0006008 a rdfs:Class ;
rdfs:label "green rod cell" ;
rdfs:comment "Type of retinal rod cell which has a cylindrical outer segment, an incisure, and likely has predominantly sealed disks." ;
rdfs:subClassOf obo:XAO_0004112 .
obo:XAO_1000057 a rdfs:Class ;
rdfs:label "NF stage 45" ;
rdfs:comment "Nieuwkoop and Faber stage 45, corresponding to a tadpole of age 4 days, 2 hr at 22-24 Celsius and having the following external morphological criteria: Operculum partly covering gills, edge still straight. Intestine spiralized in ventral aspects, showing 1.5 revolutions. Beginning of feeding. Length: 8 - 10 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004582 a rdfs:Class ;
rdfs:label "posteroventral tegmental nucleus" ;
rdfs:comment "Nucleus located posteroventrally in the midbrain tegmentum." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0000057 a rdfs:Class ;
rdfs:label "presomitic mesoderm" ;
rdfs:comment "Unsegmented field of paraxial mesoderm present posterior to the most recently formed somite pair, from which somites will form." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000202 a rdfs:Class ;
rdfs:label "animal hemisphere" ;
rdfs:comment "Anatomical region that is pigmented (dark brown) and tends to have the uppermost orientation, as it contains the blastocoel and cells that contain only small amounts of yolk. The Xenopus egg is divided into two roughly equal halves: the animal and vegetal hemispheres." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004584 a rdfs:Class ;
rdfs:label "raphe nucleus" ;
rdfs:comment "A cluster of nuclei found in the brain stem, the main function of which is to release serotonin to the rest of the brain." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004499 a rdfs:Class ;
rdfs:label "postsacral vertebra" ;
rdfs:comment "Vertebra posterior to the sacral vertebra. The 4 postsacral vertebrae fuse and ossify (NF stage 66) to form the urostyle." ;
rdfs:subClassOf obo:XAO_0004019 .
obo:XAO_0005144 a rdfs:Class ;
rdfs:label "footplate of the stapes" ;
rdfs:comment "That part of the stapes lying within the oval window, formed from the stapes pars interna." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004035 a rdfs:Class ;
rdfs:label "osteoid" ;
rdfs:comment "Bone tissue that is an unmineralized bone matrix deposited by osteoblasts prior to the mineralization of bone tissue." ;
rdfs:subClassOf obo:XAO_0000169 , obo:XAO_0005000 .
obo:XAO_0000380 a rdfs:Class ;
rdfs:label "lateral postcardinal vein" ;
rdfs:comment "Vein that first appears as disconnected portions lateral to the Wolffian ducts at NF stage 44, gradually becoming continuous. They come into communication with the medial postcardinals at the kidney sinus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0003166 a rdfs:Class ;
rdfs:label "appendicular skeleton" ;
rdfs:comment "Skeletal structure that has as its parts the pectoral and pelvic girdles, which articulate with the axial skeleton, together with their associated limbs, the forelimbs and hindlimbs." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0000131 a rdfs:Class ;
rdfs:label "large intestine" ;
rdfs:comment "A short, wide tube that is part of the alimentary system and comprises the colon and rectum and empties into the cloaca. It lacks longitudinal folds characteristic of the small intestine. It absorbs water and salts from the gut lumen." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000229 a rdfs:Class ;
rdfs:label "fasciculated network of fibrils" ;
rdfs:comment "Randomly dispersed fibrils organized into criss-crossing fascicles or bundles in the coelomic envelope of oocytes." ;
rdfs:subClassOf obo:XAO_0003040 , obo:XAO_0004005 .
obo:XAO_0004153 a rdfs:Class ;
rdfs:label "retinal blood vessel" ;
rdfs:comment "Blood vessels of the retina. May be visible in periocular stainings." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0000441 a rdfs:Class ;
rdfs:label "infraorbital lateral line primordium" ;
rdfs:comment "Lateral line primordium that migrates ventrad along the posterior and ventral margin of the eye." ;
rdfs:subClassOf obo:XAO_0004411 .
obo:XAO_0004128 a rdfs:Class ;
rdfs:label "m. rectus abdominis" ;
rdfs:comment "Muscle of the abdomen that continues anteriorly as the m. rectus cervicis." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_0000383 a rdfs:Class ;
rdfs:label "anterior cardinal vein" ;
rdfs:comment "Vein that returns blood from the dorsal head and drains into the duct of Cuvier via the pronephric sinus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000315 a rdfs:Class ;
rdfs:label "myotome" ;
rdfs:comment "Somitic compartment that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003059 a rdfs:Class ;
rdfs:label "chondrocranium" ;
rdfs:comment "Anatomical cluster consisting of a cartilaginous skull that begins to form during early tadpole stage." ;
rdfs:subClassOf obo:XAO_0003075 .
obo:XAO_0000123 a rdfs:Class ;
rdfs:label "bone marrow" ;
rdfs:comment "Flexible tissue that is found in the hollow interior of bones and appears to comprise precursor cells committed to myeloid lineages, such as macrophage- and granulocyte-progenitor cells. In adults, marrow in large bones produces new blood cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005319 a rdfs:Class ;
rdfs:label "actin filament" ;
rdfs:comment "A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003011 a rdfs:Class ;
rdfs:label "primary germ layer" ;
rdfs:comment "A layer of cells produced during the process of gastrulation during the early development of the embryo, which is distinct from other such layers of cells, as an early step of cell differentiation. The types of germ layers are the endoderm, ectoderm, and mesoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004020 a rdfs:Class ;
rdfs:label "process" ;
rdfs:comment "Anatomical structure that is a natural outgrowth, projection, or appendage. A process can be part of a bone, cartilage, tissue, or fin." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0003103 a rdfs:Class ;
rdfs:label "claw" ;
rdfs:comment "Anatomical structure consisting of a small, pointed keratinized appendage at the end of each of the three inner toes of the hindlimbs." ;
rdfs:subClassOf obo:XAO_0003162 .
obo:XAO_0004113 a rdfs:Class ;
rdfs:label "vegetal pole" ;
rdfs:comment "The apical region of the vegetal hemisphere." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004539 a rdfs:Class ;
rdfs:label "basal forebrain" ;
rdfs:comment "A group of structures that lie in the ventralmost parts of the forebrain and are formed by the derivatives of the subpallium." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003207 a rdfs:Class ;
rdfs:label "carpus" ;
rdfs:comment "The cluster of bones in the wrist between the radius, ulna and metacarpus, they do not belong to individual fingers, but allow the wrist to move and rotate." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_0004184 a rdfs:Class ;
rdfs:label "pericardial roof" ;
rdfs:comment "The dorsal region of the pericardium." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005043 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:XAO_0003012 .
obo:XAO_0003003 a rdfs:Class ;
rdfs:label "unspecified" ;
rdfs:comment "Unspecified Xenopus anatomical entity." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0003022 a rdfs:Class ;
rdfs:label "Rohon-Beard neuron" ;
rdfs:comment "Type of neuron that is a primary mechanosensory cell, with peripheral neurites innervating the skin with free nerve endings. It first appears in trunk levels at NF stage 33/34, and at NF stage 35/36 has somas that are the largest in the spinal cord. It forms a nearly continuous double row of cells along the cord's medial dorsal surface and contributes ascending and descending axons to the dorsal tract. It appears well back in the tail by NF stage 39, begins to decline at NF stage 50 and is few in number, with pycnotic nuclei, at NF stage 55." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0000142 a rdfs:Class ;
rdfs:label "genital system" ;
rdfs:comment "Anatomical system that has as its parts the organs concerned with reproduction." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0004089 a rdfs:Class ;
rdfs:label "periocular region" ;
rdfs:comment "Anatomical region that surrounds the eye but is within the orbit." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_1000010 a rdfs:Class ;
rdfs:label "juvenile frog stage" ;
rdfs:comment "Xenopus developmental stage that corresponds to a sexually immature post-tadpole animal." ;
rdfs:subClassOf obo:XAO_1000095 .
obo:XAO_0004359 a rdfs:Class ;
rdfs:label "ceratobranchial I" ;
rdfs:comment "The cartilaginous element below the epibranchial in branchial arch 1." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000232 a rdfs:Class ;
rdfs:label "foregut" ;
rdfs:comment "The anterior part of the alimentary system, from the mouth and esophagus to the duodenum at the entrance of the bile duct. Structures of the foregut are: esophagus, stomach, duodenum, liver, gall bladder, and pancreas. The spleen is located in the foregut region, but is not a gut organ." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000134 a rdfs:Class ;
rdfs:label "bile duct" ;
rdfs:comment "Duct that carries bile from the liver to the small intestine." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_0005021 a rdfs:Class ;
rdfs:label "interstitial cell of Leydig" ;
rdfs:comment "A cell that is located in the interstitial space between the seminiferous tubules and produces male androgens." ;
rdfs:subClassOf obo:XAO_0005020 .
obo:XAO_0004450 a rdfs:Class ;
rdfs:label "m. rectus posterior primordium" ;
rdfs:comment "The presumptive cells of the rectus posterior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0005119 a rdfs:Class ;
rdfs:label "oocyte cortex" ;
rdfs:comment "Cell component comprising the outer layers of the oocyte." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0005174 a rdfs:Class ;
rdfs:label "left-dorsal blastomere" ;
rdfs:comment "The blastomere of the future left-dorsal portion of the embryo at the 4-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0000038 a rdfs:Class ;
rdfs:label "animal cap outer layer" ;
rdfs:comment "Superficial layer of blastocoel roof ectoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004328 a rdfs:Class ;
rdfs:label "m. levator mandibulae longus internus" ;
rdfs:comment "Muscle that is part a complex that arises from the skull roof and acts to elevate or close the lower jaw. It separates medially from levator mandibulae longus supeficialis, with which it shares a common origin." ;
rdfs:subClassOf obo:XAO_0004323 .
obo:XAO_0004341 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium II" ;
rdfs:comment "The 2nd branchial levator muscle, which contributes to raising the branchial apparatus." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0000299 a rdfs:Class ;
rdfs:label "ventral" ;
rdfs:comment "Spatial concept denoting the underside or lower surface of the body." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0004301 a rdfs:Class ;
rdfs:label "eminentia thalami" ;
rdfs:comment "Part of the diencephalon that is located between the prethalamus, hypothalamus, and the telencephalon." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_1000035 a rdfs:Class ;
rdfs:label "NF stage 19" ;
rdfs:comment "Nieuwkoop and Faber stage 19, corresponding to an embryo of age 20 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Initial neural tube stage. Neural folds touching each other, except for inconstant openings at anterior and posterior end and behind nucal region. Considerable lateral extension of brain. Lateral outline of embryo still convex. Length: 1.5 - 1.6 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004050 a rdfs:Class ;
rdfs:label "perichordal tissue" ;
rdfs:comment "Fibrous connective tissue that surrounds the notochord; includes a layer of elastin." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0004519 a rdfs:Class ;
rdfs:label "distal tubule" ;
rdfs:comment "The distal segment of the pronephric tubule, functioning in water resorption, with urine passing through it into the pronephric duct." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000250 a rdfs:Class ;
rdfs:label "posterior neural tube" ;
rdfs:comment "Posterior segment of the neural tube, which develops into the hindbrain and spinal cord." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004488 a rdfs:Class ;
rdfs:label "diaphysis" ;
rdfs:comment "Organ part consisting of the main section or midsection of a long bone, which in Xenopus are the tibia-fibula and femur of the hindlimb, and the radio-ulna and humerus of the forelimb." ;
rdfs:subClassOf obo:XAO_0004486 .
obo:XAO_0005238 a rdfs:Class ;
rdfs:label "obsolete rostral notochord" .
obo:XAO_0000160 a rdfs:Class ;
rdfs:label "pineal gland" ;
rdfs:comment "An unpaired glandular organ subdivision attached on the midline near the posterior and habenular commissures of the epithalamus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005078 a rdfs:Class ;
rdfs:label "dorsomedial edge of myotome" ;
rdfs:comment "Muscle-forming part of each myotome that splits from the ventrolateral edge and gives rise to the epaxial musculature." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003033 a rdfs:Class ;
rdfs:label "nostril" ;
rdfs:comment "Surface structure that provides one of the small external openings of the head that give passage to air for breathing." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0004009 a rdfs:Class ;
rdfs:label "simple cuboidal epithelium" ;
rdfs:comment "Unilaminar epithelium that consists of a single layer of cuboidal cells." ;
rdfs:subClassOf obo:XAO_0004007 .
obo:XAO_0004277 a rdfs:Class ;
rdfs:label "caudal fin skeleton" ;
rdfs:comment "Median fin skeleton supporting the caudal fin." ;
rdfs:subClassOf obo:XAO_0004282 .
obo:XAO_0005184 a rdfs:Class ;
rdfs:label "dorsolateral ascending neuron" ;
rdfs:comment "An ascending neuron, originating in the spinal cord, that is involved in the touch sensory pathway and lies adjacent to the Rohon-Beard neurons and close to the roof plate of the spinal cord." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0003138 a rdfs:Class ;
rdfs:label "myotome of tail somite 15" ;
rdfs:comment "Compartment of tail somite 15 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0005245 a rdfs:Class ;
rdfs:label "neurenteric canal" ;
rdfs:comment "The most posterior zone of the neural tube, first evident at NF stage 17, which develops where the neural tube passes into the archenteron roof around the dorsal blastoporal lip, becoming deeper during late neurula stages." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004602 a rdfs:Class ;
rdfs:label "brain ventricle" ;
rdfs:comment "One of the system of communicating cavities in the brain that are continuous with the central canal of the spinal cord, that are lined with an epithelial ependyma, and that contain cerebral-spinal fluid. The system comprises four ventricles, the right and left lateral ventricles (one for each hemisphere), third ventricle, and fourth ventricle." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0005166 a rdfs:Class ;
rdfs:label "delta cell" ;
rdfs:comment "Somatostatin-producing cell that is found in the stomach, intestine and the pancreatic islets." ;
rdfs:subClassOf obo:XAO_0005135 .
obo:XAO_0004546 a rdfs:Class ;
rdfs:label "dorsal habenular nucleus" ;
rdfs:comment "Cell mass in the caudal and dorsal aspect of the dorsal thalamus adjoining the pineal gland." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004477 a rdfs:Class ;
rdfs:label "smooth muscle myocyte" ;
rdfs:comment "A myocyte of the smooth muscle." ;
rdfs:subClassOf obo:XAO_0004475 .
obo:XAO_0000089 a rdfs:Class ;
rdfs:label "lower blastopore lip" ;
rdfs:comment "Ventral part of the blastopore lip, which forms as a result of the contraction of bottle cells." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000305 a rdfs:Class ;
rdfs:label "cranial placode" ;
rdfs:comment "A localized ectodermal thickening that develops by apicobasal elongation of cuboidal cells in the inner layer of the ectoderm in the head of the embryos, and is involved in formation of sense organs." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005018 a rdfs:Class ;
rdfs:label "spinal neuron" ;
rdfs:comment "A neuron of the spinal cord." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0006027 a rdfs:Class ;
rdfs:label "granulocyte/macrophage precursor" ;
rdfs:comment "A progenitor cell that is part of the immune system, develops from the common myeloid progenitor, and develops into a granulocyte, macrophage, dendritic cell, basophil, eosinophil, or neutrophil." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000365 a rdfs:Class ;
rdfs:label "arteria subclavia" ;
rdfs:comment "Artery that branches from either side of the dorsal aorta and delivers blood to the musculature of the shoulder region." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0000407 a rdfs:Class ;
rdfs:label "trunk somite 2" ;
rdfs:comment "Trunk somite that is initially the sixth somite and later becomes the secondmost anterior somite." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004132 a rdfs:Class ;
rdfs:label "presumptive ectoderm" ;
rdfs:comment "Presumptive structure at the animal pole of the blastula that will develop into ectoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_1000015 a rdfs:Class ;
rdfs:label "NF stage 5 (16-cell)" ;
rdfs:comment "Nieuwkoop and Faber stage 5, corresponding to an embryo of age 2 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Advanced sixteen cell stage. Dorsal micromeres distinctly smaller and less pigmented than ventral ones. Macromeres entirely separated by cleavage grooves. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0006047 a rdfs:Class ;
rdfs:label "bipolar cell" ;
rdfs:comment "A neuron-like cell, often with atypical dentric knobs, seen in the olfactory epithelium of the olfactory bulb, and which are S100Z-positive, the axons of which extend/push into the olfactory nerve." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0004551 a rdfs:Class ;
rdfs:label "external plexiform layer of the olfactory bulb" ;
rdfs:comment "Cytoarchitectural part of the olfactory bulb, lying superior to the mitral cell layer and inferior to the glomerular layer. The EPL is mostly neuropil composed almost entirely of mitral and tulfted cell dendrites and granule cell dendrites and their synaptic inputs." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005325 a rdfs:Class ;
rdfs:label "syndetome" ;
rdfs:comment "Subdomain that occupies the dorso-lateral portion of a somite and comprises tendon progenitor cells. It is located between the neighboring sclerotome and myotome, at the future site of connection between bone and muscle, and gives rise to the axial tendons of the body." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0001010 a rdfs:Class ;
rdfs:label "circulatory system" ;
rdfs:comment "Anatomical system that has as its parts the blood and lymph vessels." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0000246 a rdfs:Class ;
rdfs:label "myocoelic slit" ;
rdfs:comment "Space that separates the thicker inner sheet of splanchnic mesoderm from the thinner outer somatic mesoderm." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000117 a rdfs:Class ;
rdfs:label "respiratory system" ;
rdfs:comment "Functional system which consists of structures involved in respiration (breathing)." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0004169 a rdfs:Class ;
rdfs:label "ophthalmic vein" ;
rdfs:comment "The dorsal branch/remnant of the vena capitis medialis, that drains blood from the eye. Together with the opthalmic artery, form a double ring encircling the eye and retina." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0005083 a rdfs:Class ;
rdfs:label "egg cell-free extract" ;
rdfs:comment "A cell-free extract obtained from oocytes." ;
rdfs:subClassOf obo:XAO_0004291 .
obo:XAO_0004562 a rdfs:Class ;
rdfs:label "lateral hypothalamic nucleus" ;
rdfs:comment "Diencephalic nucleus that is the lateral part of the ventral hypothalamic zone." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0000420 a rdfs:Class ;
rdfs:label "trunk somite 12" ;
rdfs:comment "The 10th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004104 a rdfs:Class ;
rdfs:label "neural plate border" ;
rdfs:comment "The boundary between non-neural ectoderm and the neural plate of neurula stage embryos, giving rise to the neural crest and cranial placodes." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004329 a rdfs:Class ;
rdfs:label "m. levator mandibulae longus profundus" ;
rdfs:comment "Muscle that is part a complex that arises from the skull roof and acts to elevate or close the lower jaw. After separating from levator mandibulae longus superficialis, it parallels it and inserts in the connective tissue. Only at later stages, its rostral third is slightly curved laterally and inserts in the region of the anlage of the tentacular cartilage." ;
rdfs:subClassOf obo:XAO_0004323 .
obo:XAO_0004158 a rdfs:Class ;
rdfs:label "anterior cerebral vein" ;
rdfs:comment "Vein that crosses the head dorsally at NF stage 37/38 and drains into the vena capitis medialis." ;
rdfs:subClassOf obo:XAO_0004160 .
obo:XAO_0005032 a rdfs:Class ;
rdfs:label "neural stem cell" ;
rdfs:comment "A cell that, in the early stages of the brain, are generated from the ectoderm-derived neural epithelium and commit to differentiate into either neurons or radial glial cells. It is well known that radial glial cells have distinctive morphological characteristics and can act as neural progenitor cells (NPCs) or neural stem cells (NSCs), in addition to guiding the migration of differentiating neurons in the central nervous system." ;
rdfs:subClassOf obo:XAO_0003054 .
obo:XAO_0003192 a rdfs:Class ;
rdfs:label "right atrium" ;
rdfs:comment "The chamber of the heart that receives blood from the sinus venosus." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0003014 a rdfs:Class ;
rdfs:label "pigment cell" ;
rdfs:comment "Cell type that contains a deposition of coloring matter, the first of which differentiate during late tailbud stage, and that by NF stage 56 has produced a fully differentiated larval pigmentation pattern." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000416 a rdfs:Class ;
rdfs:label "trunk somite 8" ;
rdfs:comment "The 6th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004317 a rdfs:Class ;
rdfs:label "amputated tissue" ;
rdfs:comment "A portion of tissue that has been removed from the body." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000068 a rdfs:Class ;
rdfs:label "marginal zone" ;
rdfs:comment "Region of intermediate pigmentation between the pigmented animal hemisphere and the unpigmented vegetal hemisphere of the egg." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005195 a rdfs:Class ;
rdfs:label "enteric nervous system" ;
rdfs:comment "The mesh-like system of enteric neurons that innervate the gastrointestinal tract, with neurons embedded in the lining of the gastrointestinal system, beginning at the esophagus and extending down to the cloaca. The ENS can and does operate independently of the brain and the spinal cord." ;
rdfs:subClassOf obo:XAO_0000177 .
obo:XAO_0005177 a rdfs:Class ;
rdfs:label "right-ventral blastomere" ;
rdfs:comment "The blastomere of the future right-ventral portion of the embryo at the 4-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0004573 a rdfs:Class ;
rdfs:label "mitral cell" ;
rdfs:comment "Large glutaminergic nerve cell whose dendrites synapse with axons of the olfactory receptor neurons in the glomerular layer of the olfactory bulb, and whose axons pass centrally in the olfactory tract to the olfactory cortex." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0000074 a rdfs:Class ;
rdfs:label "involuting marginal zone" ;
rdfs:comment "Portion of the marginal zone of the embryo that turns inside the embryo during involution." ;
rdfs:subClassOf obo:XAO_0000068 .
obo:XAO_0005227 a rdfs:Class ;
rdfs:label "flexural organ" ;
rdfs:comment "Tissue that is the most anterior portion of the notochord and secretes Reissner's fiber-related proteins, including F-spondin." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004571 a rdfs:Class ;
rdfs:label "medial septum" ;
rdfs:comment "A set of septal nuclei comprising the medial aspect of the forebrain septum." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0000391 a rdfs:Class ;
rdfs:label "subinterstitial vein" ;
rdfs:comment "Vein that carries away fluid in the interstitial spaces." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000005 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 embryo that develops into the olfactory epithelium of the nasal cavity." ;
rdfs:subClassOf obo:XAO_0004620 .
obo:XAO_0005108 a rdfs:Class ;
rdfs:label "blastomere V2.1.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective, ventral midline in the fourth tier of blastomeres. It contributes a few cells to the epidermis, neural crest and spinal cord, and a large number of cells to the somites, pronephric kidney, lateral plate mesoderm, tail fin mesenchyme, hindgut, and proctodeum." ;
rdfs:subClassOf obo:XAO_0005114 .
obo:XAO_0003127 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 10" ;
rdfs:comment "Compartment of trunk somite 10 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0000431 a rdfs:Class ;
rdfs:label "tooth" ;
rdfs:comment "Each of a set of hard, bony enamel-coated structures in the jaws, used for biting." ;
rdfs:subClassOf obo:XAO_0004012 .
obo:XAO_1000089 a rdfs:Class ;
rdfs:label "premetamorphosis stage" ;
rdfs:comment "Tadpole stage during which limb bud growth occurs, comprising Nieuwkoop and Faber stages 45 to 54." ;
rdfs:subClassOf obo:XAO_1000008 .
obo:XAO_0005089 a rdfs:Class ;
rdfs:label "blastomere D1.2" ;
rdfs:comment "Blastomere which lies in the animal hemisphere lateral to blastomere D1.1 at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005113 .
obo:XAO_0004117 a rdfs:Class ;
rdfs:label "stage IV oocyte" ;
rdfs:comment "A developing female gamete that is at the stage in which polarization along the animal-vegetal axis is established." ;
rdfs:subClassOf obo:XAO_0000256 .
obo:XAO_0003214 a rdfs:Class ;
rdfs:label "femur" ;
rdfs:comment "Either of the paired, elongate, cylindrical bones of endochondral origin that form the thighs, extending from the pelvic girdles to the knees. Proximal bone of the hind leg, which begins to ossify at NF stage 55." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0004173 a rdfs:Class ;
rdfs:label "mesencephalic artery" ;
rdfs:comment "The major artery of the midbrain, which crosses the midbrain medially to meet its partner the mesencephalic vein." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0005094 a rdfs:Class ;
rdfs:label "blastomere V2.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective ventral midline of the vegetal hemisphere at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005114 .
obo:XAO_0004377 a rdfs:Class ;
rdfs:label "processus posterior hyalis" ;
rdfs:comment "Cartilaginous element comprising the posterior process of ceratohyal cartilage derived from the hyoid neural crest stream." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004613 a rdfs:Class ;
rdfs:label "non-cililated epidermal cell" ;
rdfs:comment "Epidermal cell that lacks cilia." ;
rdfs:subClassOf obo:XAO_0004621 .
obo:XAO_0000265 a rdfs:Class ;
rdfs:label "visceral pouch 6" ;
rdfs:comment "Sixth of the pharyngeal (endodermal) evaginations between the visceral arches." ;
rdfs:subClassOf obo:XAO_0000282 .
obo:XAO_0000358 a rdfs:Class ;
rdfs:label "venous endothelium" ;
rdfs:comment "Simple squamous epithelium that lines the veins." ;
rdfs:subClassOf obo:XAO_0004010 .
obo:XAO_0000279 a rdfs:Class ;
rdfs:label "vegetal blastomere" ;
rdfs:comment "Unpigmented, larger blastomere of the vegetal (lower) hemisphere of the cleaving embryo." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0004596 a rdfs:Class ;
rdfs:label "ventromedial thalamic nucleus" ;
rdfs:comment "Nucleus situated in the thalamus to which somatosensory input is predominantly directed." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0000127 a rdfs:Class ;
rdfs:label "esophagus" ;
rdfs:comment "Tube that connects the pharynx to the stomach. At NF stage 57 it is a straight tube, round in cross section, and starting from the pharynx runs backward along the dorsal side of the abdominal cavity. Its lining consists of a columnar glandular epithelium with mucus secreting cells. It is thrown into longitudinal folds." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_1000021 a rdfs:Class ;
rdfs:label "NF stage 11" ;
rdfs:comment "Nieuwkoop and Faber stage 11, corresponding to an embryo of age 11 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Horse-shoe-shaped blastopore stage. Blastopore groove surrounding about half of future yolk plug and indicated at its ventral side; future yolk plug often rounded rectangular, slightly elongated in dorso-ventral direction, diameter more than two-fifths of diameter of egg (plus or minus 50 degrees of circumference). Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000016 a rdfs:Class ;
rdfs:label "midbrain-hindbrain boundary" ;
rdfs:comment "The part of the brain that is the morphological boundary between the midbrain and hindbrain and that is the location of an organizing center which patterns the midbrain and hindbrain primordia of the neural plate." ;
rdfs:subClassOf obo:XAO_0004003 .
obo:XAO_0004197 a rdfs:Class ;
rdfs:label "elastic cartilage tissue" ;
rdfs:comment "Cartilage tissue that is flexible and contains abundant elastic fibers." ;
rdfs:subClassOf obo:XAO_0004044 .
obo:XAO_0000008 a rdfs:Class ;
rdfs:label "lens" ;
rdfs:comment "Transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004288 a rdfs:Class ;
rdfs:label "vertebral element" ;
rdfs:comment "Skeletal element that forms around the notochord and is part of the vertebral column." ;
rdfs:subClassOf obo:XAO_0004012 .
obo:XAO_1000094 a rdfs:Class ;
rdfs:label "NF stage" ;
rdfs:comment "Xenopus developmental stage that is one of the 66 standard chronological embryonic and tadpole stages originally described by Nieuwkoop and Faber in the Normal Table of Xenopus laevis (Daudin)." ;
rdfs:subClassOf obo:XAO_1000000 .
obo:XAO_0004431 a rdfs:Class ;
rdfs:label "m. quadrato-hyoangularis primordium" ;
rdfs:comment "The presumptive cells of the quadrato-hyoangularis muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0005256 a rdfs:Class ;
rdfs:label "obsolete left eye" .
obo:XAO_0000091 a rdfs:Class ;
rdfs:label "head endoderm" ;
rdfs:comment "The endoderm of the head." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003203 a rdfs:Class ;
rdfs:label "dental epithelium" ;
rdfs:comment "Epithelium that is part of a developing tooth or dental organ." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0004535 a rdfs:Class ;
rdfs:label "ventral funiculus" ;
rdfs:comment "Region of spinal cord white matter lying on either side between the ventral median fissure and the ventral roots of the spinal nerves." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005163 a rdfs:Class ;
rdfs:label "thoracic region" ;
rdfs:comment "A region of the embryo that is located broadly around the heart, but ventral to the pharyngeal region, posterior to the cement gland, and anterior to the endoderm or organs of endodermal origin (foregut, liver and lung primordia)." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000209 a rdfs:Class ;
rdfs:label "ganglion" ;
rdfs:comment "A cluster of nervous tissue principally composed of neuronal cell bodies external to the central nervous system (CNS)." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005007 a rdfs:Class ;
rdfs:label "Mueller cell" ;
rdfs:comment "Astrocyte-like radial glial cell that extends vertically throughout the retina, with the nucleus usually in the middle of the inner nuclear layer." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_0000063 a rdfs:Class ;
rdfs:label "pronephric duct" ;
rdfs:comment "Duct that drains urine from the pronephros and connects it to the cloaca. It is thought that the pronephric duct may play a key role in the induction of the mesonephric (adult) kidney. The most anterior part of the pronephric duct shows distinct gene expression patterns and is sometimes referred to as DT2." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_0004299 a rdfs:Class ;
rdfs:label "hand" ;
rdfs:comment "Terminal portion of a forelimb." ;
rdfs:subClassOf obo:XAO_0004265 .
obo:XAO_0000316 a rdfs:Class ;
rdfs:label "epicardium" ;
rdfs:comment "The inner layer of the pericardium that is in contact with the surface of the heart. During cardiac development, it is the source of multipotent mesenchymal cells, which give rise to endothelial and smooth muscle cells in coronary vessels and also, possibly, to cardiomyocytes." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003177 a rdfs:Class ;
rdfs:label "hyoid arch skeleton" ;
rdfs:comment "Skeletal subdivision comprising the skeletal elements of the hyoid arch." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0004143 a rdfs:Class ;
rdfs:label "vascular plexus" ;
rdfs:comment "Any network of intercommunicating blood vessels." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0003122 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 6" ;
rdfs:comment "Compartment of trunk somite 6 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0003110 a rdfs:Class ;
rdfs:label "myotome of trunk somite 3" ;
rdfs:comment "Compartment of trunk somite 3 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0005500 a rdfs:Class ;
rdfs:label "desmosome" ;
rdfs:comment "A cell-cell junction in which: on the cytoplasmic surface of each interacting plasma membrane is a dense plaque composed of a mixture of intracellular anchor proteins; a bundle of keratin intermediate filaments is attached to the surface of each plaque; transmembrane adhesion proteins of the cadherin family bind to the plaques and interact through their extracellular domains to hold the adjacent membranes together by a Ca2+-dependent mechanism." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000455 a rdfs:Class ;
rdfs:label "biliary tree" ;
rdfs:comment "Hollow tree organ, the organ parts of which consist of the bile ducts." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_1000046 a rdfs:Class ;
rdfs:label "NF stage 31" ;
rdfs:comment "Nieuwkoop and Faber stage 31, corresponding to an embryo of age 1 day, 13 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Tail bud equally long as broad. Length: 4.2 - 4.8 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0006036 a rdfs:Class ;
rdfs:label "immature Schwann cell" ;
rdfs:comment "A glial cell that develops from a Schwann cell precursor." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_0004590 a rdfs:Class ;
rdfs:label "torus semicircularis" ;
rdfs:comment "Multi-tissue structure that is part of the midbrain and develops from the alar plate. It is located dorsal to the lateral tegmentum where it extends into the medial tectal ventricle and receives ascending sensory octavolateralis input." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005000 a rdfs:Class ;
rdfs:label "matrix-based tissue" ;
rdfs:comment "A tissue whose predominant feature is extracellular matrix that may or may not be highly hydrated or calcified." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000087 a rdfs:Class ;
rdfs:label "oocyte stage V" ;
rdfs:comment "The late-vitellogenic stage of the developing female gamete." ;
rdfs:subClassOf obo:XAO_1000082 .
obo:XAO_0005059 a rdfs:Class ;
rdfs:label "stratum compactum" ;
rdfs:comment "Dermal layer composed of alternating sheets of parallel fibers." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005011 a rdfs:Class ;
rdfs:label "centriole" ;
rdfs:comment "A cellular organelle, found close to the nucleus in many cells, consisting of a small cylinder with microtubular walls, 300-500 nm long and 150-250 nm in diameter. It contains nine short, parallel, peripheral microtubular fibrils, each fibril consisting of one complete microtubule fused to two incomplete microtubules. Cells usually have two centrioles, lying at right angles to each other. At division, each pair of centrioles generates another pair and the twin pairs form the pole of the mitotic spindle." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003023 a rdfs:Class ;
rdfs:label "neuron" ;
rdfs:comment "Cell that is the basic unit of nervous tissue, each consisting of a body, an axon, and dendrites, and the purpose of which is to receive, conduct, and transmit impulses in the nervous system." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000223 a rdfs:Class ;
rdfs:label "otic placode" ;
rdfs:comment "Invagination of thickened epithelium near the hindbrain that gives rise to a spherically shaped ear vesicle, including precursors of the sensory epithelia of the inner ear and neurons of cranial nerve VIII." ;
rdfs:subClassOf obo:XAO_0004620 .
obo:XAO_1000027 a rdfs:Class ;
rdfs:label "NF stage 17" ;
rdfs:comment "Nieuwkoop and Faber stage 17, corresponding to an embryo of age 18 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Late neural fold stage. Anterior part of neural plate oblong triangular, angles formed by eye anlagen. Neural folds approaching each other from blastopore up to anterior trunk region. Length: 1.5 - 1.6 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003009 a rdfs:Class ;
rdfs:label "disaggregated/reaggregated ectoderm treated with activin" ;
rdfs:comment "NF stage 8 ectoderm of Xenopus laevis embryos that have been cut and disaggregated. The cells have been treated with activin at a concentration to induce endodermal tissue. Afterwards the reaggregated cells have been cultured until control sibling embryos reach stage 12/13." ;
rdfs:subClassOf obo:XAO_0003007 .
obo:XAO_0000341 a rdfs:Class ;
rdfs:label "aortic arch" ;
rdfs:comment "One of a series of six paired embryological vascular structures that give rise to several major arteries." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0006034 a rdfs:Class ;
rdfs:label "monoblast" ;
rdfs:comment "A myeloid progenitor cell committed to the monocyte lineage." ;
rdfs:subClassOf obo:XAO_0004148 .
obo:XAO_0005106 a rdfs:Class ;
rdfs:label "blastomere V1.2.1" ;
rdfs:comment "Blastomere which lies lateral to blastomere V1.1.1 and is in the first tier of blastomeres. It contributes to many ectodermal structures including the epidermis, lens, cranial ganglia, otic vesicle, neural crest, olfactory placode, cement gland, retina, brain, and spinal cord. It also contributes cells to the pharyngeal mesoderm, head mesenchyme, heart, somites, pronephric kidney, lateral plate mesoderm and tail fin mesenchyme, archenteron roof, with occasional cells in the foregut, liver, hindgut and proctodeum." ;
rdfs:subClassOf obo:XAO_0005115 .
obo:XAO_0004352 a rdfs:Class ;
rdfs:label "m. rectus anterior" ;
rdfs:comment "Muscle in the orbit that inserts on the anterior side of the eye and the function of which is adduction of the eyeball." ;
rdfs:subClassOf obo:XAO_0004327 .
obo:XAO_0005309 a rdfs:Class ;
rdfs:label "cephalic nerve" ;
rdfs:comment "A nerve that is part of the head." ;
rdfs:subClassOf obo:XAO_0003047 .
obo:XAO_0000059 a rdfs:Class ;
rdfs:label "obsolete pronephros" .
obo:XAO_0005123 a rdfs:Class ;
rdfs:label "vegetal cortex" ;
rdfs:comment "Cell component comprising the outer layers of the vegetal region of the oocyte." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000164 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:XAO_0003164 .
obo:XAO_0005192 a rdfs:Class ;
rdfs:label "ethmoid region" ;
rdfs:comment "Anatomical cluster comprising the most anterior region of the braincase and providing structural support for the peripheral olfactory organ." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000092 a rdfs:Class ;
rdfs:label "archenteron" ;
rdfs:comment "The cavity of the gastrula forming a primitive gut. At NF stage 20-21 its wide canal becomes dorso-ventrally compressed and narrowed in the future trunk region so that a subdivision into a foregut, a midgut and a hindgut with protruding endodermal mass becomes manifest." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000121 a rdfs:Class ;
rdfs:label "bronchus" ;
rdfs:comment "A passage of airway in the respiratory tract that conducts air into the lungs." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0005178 a rdfs:Class ;
rdfs:label "monociliated epidermal cell" ;
rdfs:comment "A ciliated epidermal cell that has a single cilium." ;
rdfs:subClassOf obo:XAO_0000031 , obo:XAO_0005137 .
obo:XAO_0004166 a rdfs:Class ;
rdfs:label "left omphalomesenteric vein" ;
rdfs:comment "In the trunk region, one of the veins into which the subintestinal vein drains, and which breaks up to merge with the vitelline network at NF stage 40." ;
rdfs:subClassOf obo:XAO_0000376 .
obo:XAO_0003016 a rdfs:Class ;
rdfs:label "blastomere" ;
rdfs:comment "An undifferentiated cell produced by early cleavages of the fertilized egg (zygote)." ;
rdfs:subClassOf obo:XAO_0003241 .
obo:XAO_0004421 a rdfs:Class ;
rdfs:label "claw of hindlimb digit 5" ;
rdfs:comment "Claw located at the end of the 5th hindlimb digit." ;
rdfs:subClassOf obo:XAO_0003103 .
obo:XAO_0003121 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 5" ;
rdfs:comment "Compartment of trunk somite 5 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004085 a rdfs:Class ;
rdfs:label "ionocyte" ;
rdfs:comment "Specialized epithelial cells involved in the maintenance of osmotic homeostasis. They are characterized by abundant mitochondria and ion transporters. In Xenopus there are two distinct types of ionocytes, described as alpha- and beta- subtypes." ;
rdfs:subClassOf obo:XAO_0004225 .
obo:XAO_0004069 a rdfs:Class ;
rdfs:label "migratory neural crest cell" ;
rdfs:comment "Neural crest that lose their connections to other neuroepithelial cells during the delamination process and begin to migrate. This involves either partial or complete epithelial-to-mesenchymal transition. Numerous molecules have been demonstrated to guide a neural crest cell's migration to its target tissue." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_1000051 a rdfs:Class ;
rdfs:label "NF stage 39" ;
rdfs:comment "Nieuwkoop and Faber stage 39, corresponding to an embryo of age 2 days, 8 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Melanophores appearing around nasal pits. Opening of stomodeal invagination transversely elongated. Melanophores on back arranged in a superficial and a deeper layer. Outlines of proctodeum and tail myotomes forming angle of about 135 degrees. Melanophores appearing along ventral edge of tail musculature. Length: 5.9 - 6.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003111 a rdfs:Class ;
rdfs:label "myotome of trunk somite 4" ;
rdfs:comment "Compartment of trunk somite 4 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0005048 a rdfs:Class ;
rdfs:label "nucleus of the solitary tract" ;
rdfs:comment "A series of nuclei forming a column of grey matter embedded in the medulla, through the center of which runs the solitary tract. The solitary tract and nucleus are structures that carry and receive visceral sensation and taste from the facial (VII), glossopharyngeal (IX) and vagus (X) cranial nerves." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004155 a rdfs:Class ;
rdfs:label "hyaloid artery" ;
rdfs:comment "The hyaloid artery is a branch of the ophthalmic artery, which is itself a branch of the internal carotid artery. It is contained within the optic stalk of the eye and extends from the optic disc through the vitreous humor to the lens. Its purpose is to supply nutrient to the developing lens." ;
rdfs:subClassOf obo:XAO_0004154 .
obo:XAO_0004318 a rdfs:Class ;
rdfs:label "amputated fin" ;
rdfs:comment "A portion of fin tissue that has been removed from the body." ;
rdfs:subClassOf obo:XAO_0004317 .
obo:XAO_1000040 a rdfs:Class ;
rdfs:label "NF stage 24" ;
rdfs:comment "Nieuwkoop and Faber stage 24, corresponding to an embryo of age 1 day, 2 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Eyes protruding less far laterally than gill-area. Gill-area more prominent than jaw-area, gill-area not yet grooved. Ventral outline of embryo nicked. Tail bud discernible. Initial motor reactions to external stimulation. Length: 2.5 - 2.7 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004494 a rdfs:Class ;
rdfs:label "iliac process" ;
rdfs:comment "A prominent, slender, rod-like projection of the iliac bone located close to the acetabiulum and directed posteriorly." ;
rdfs:subClassOf obo:XAO_0004020 .
obo:XAO_0004225 a rdfs:Class ;
rdfs:label "non-ciliated epithelial cell" ;
rdfs:comment "Type of cell of the epidermis lacking cilia, which separate and space the ciliated epidermal cells." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0004126 a rdfs:Class ;
rdfs:label "cardiac valve" ;
rdfs:comment "Portion of tissue that prevents regurgitation of blood from the ventricles to the atria or from the pulmonary arteries or aorta to the ventricles." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004455 a rdfs:Class ;
rdfs:label "cranial muscle primordium" ;
rdfs:comment "The presumptive cells of any of the cranial muscles." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004344 a rdfs:Class ;
rdfs:label "mm. constrictores branchiales II" ;
rdfs:comment "Muscle that arises on part of the chondrocranium and passes to the ventro-lateral region of the cerato-branchialia. It originates on the ventrolateral process of the palatoquadrate." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0006023 a rdfs:Class ;
rdfs:label "common dendritic progenitor" ;
rdfs:comment "A hematopoietic progenitor cell which gives rise to dendritic cells." ;
rdfs:subClassOf obo:XAO_0004148 .
obo:XAO_1000076 a rdfs:Class ;
rdfs:label "NF stage 64" ;
rdfs:comment "Nieuwkoop and Faber stage 64, corresponding to a tadpole of age about 53 days at 22-24 Celsius and having the following external morphological criteria: Corner of mouth well behind eye. Various adult skin areas joined almost everywhere, borderlines still clearly visible. Length of tail (from anus) is a third of body length." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004574 a rdfs:Class ;
rdfs:label "mitral cell layer of the olfactory bulb" ;
rdfs:comment "Layer composed of pyramidal neurons whose cell bodies are located between the granule cell layer and the plexiform layer." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000108 a rdfs:Class ;
rdfs:label "chordoneural hinge" ;
rdfs:comment "The anterior limit of the neurenteric canal, which connects the post-anal gut with the central canal of the spinal chord. It is formed from a population of cells derived from the dorsal lip of the late gastrula, and has been shown to be important in tail development." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004625 a rdfs:Class ;
rdfs:label "dorsal fin vasculature" ;
rdfs:comment "Blood vessel that is part of the dorsal fin." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0004149 a rdfs:Class ;
rdfs:label "endothelial cell" ;
rdfs:comment "Cell that comprises the outermost layer or lining of anatomical structures and can be squamous or cuboidal." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004385 a rdfs:Class ;
rdfs:label "branchial basket" ;
rdfs:comment "Cartilaginous element that comprises the network-like cartilaginous skeleton of the gill region." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0006054 a rdfs:Class ;
rdfs:label "intermediate cluster" ;
rdfs:comment "The larger, laterally projecting, lobe-like cluster of glomeruli within the glomerular layer of the ofactory bulb." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004115 a rdfs:Class ;
rdfs:label "stage II oocyte" ;
rdfs:comment "A developing female gamete that is at the early vitellogenic stage." ;
rdfs:subClassOf obo:XAO_0000256 .
obo:XAO_0003228 a rdfs:Class ;
rdfs:label "hypaxial muscle" ;
rdfs:comment "Type of trunk muscle that lies ventral to the horizontal septum of the vertebrae and is innervated by the ventral ramus of the spinal nerves. The arise from migratory somitic cells along the lower margin of the trunk somites." ;
rdfs:subClassOf obo:XAO_0000174 .
obo:XAO_0000403 a rdfs:Class ;
rdfs:label "head somite 2" ;
rdfs:comment "Transient occipital somite that exists from NF stages 18 to 29 only." ;
rdfs:subClassOf obo:XAO_0000313 .
obo:XAO_0000192 a rdfs:Class ;
rdfs:label "inner ear" ;
rdfs:comment "Labyrinthine anatomical cluster that comprises sensory endorgans specialized for vestibular, auditory, and acoustico-vestibular sensation." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0003201 a rdfs:Class ;
rdfs:label "oral epithelium" ;
rdfs:comment "Epithelium that lines the oral cavity, with many short microvilli as well as mucous cells, rodlet cells and taste buds." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0005286 a rdfs:Class ;
rdfs:label "astral microtubule" ;
rdfs:comment "Any of the spindle microtubules that radiate in all directions from the spindle poles and are thought to contribute to the forces that separate the poles and position them in relation to the rest of the cell." ;
rdfs:subClassOf obo:XAO_0005285 .
obo:XAO_0006043 a rdfs:Class ;
rdfs:label "common myeloid progenitor" ;
rdfs:comment "A progenitor cell committed to a myeloid lineage, including the megakaryocyte and erythroid lineages." ;
rdfs:subClassOf obo:XAO_0004148 .
obo:XAO_0000293 a rdfs:Class ;
rdfs:label "obsolete neural fold" .
obo:XAO_0000185 a rdfs:Class ;
rdfs:label "iris" ;
rdfs:comment "A membrane in the eye, responsible for controlling the amount of light reaching the retina." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004137 a rdfs:Class ;
rdfs:label "anterior crista" ;
rdfs:comment "Anterior patch of cristae/sensory epithelia cells of the inner ear." ;
rdfs:subClassOf obo:XAO_0004138 .
obo:XAO_0005101 a rdfs:Class ;
rdfs:label "blastomere D2.1.2" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline, anterior to its sister cell, blastomere D2.1.1, in the third tier of blastomeres. It contributes to mostly endodermal and mesodermal structures including the heart, head mesenchyme, notochord, somites, lateral plate mesoderm, foregut, hindgut, and a few cells of ectodermal origin (in cranial ganglia and neural crest)." ;
rdfs:subClassOf obo:XAO_0005112 .
obo:XAO_0006045 a rdfs:Class ;
rdfs:label "basophil" ;
rdfs:comment "A type of granulocyte responsible for inflammatory reactions during immune response." ;
rdfs:subClassOf obo:XAO_0006044 .
obo:XAO_0000363 a rdfs:Class ;
rdfs:label "occipitovertebral artery" ;
rdfs:comment "One of paired arteries that extends dorsally from the systemic arch to supply the muscles of the jaw and back." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004595 a rdfs:Class ;
rdfs:label "ventrolateral thalamic nucleus" ;
rdfs:comment "Nucleus situated in the thalamus that receives inputs from the basal nuclei and the function of which is to help coordinate and plan movement." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004594 a rdfs:Class ;
rdfs:label "ventral pallium" ;
rdfs:comment "The pallial region located next to the pallium-subpallium boundary." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004303 a rdfs:Class ;
rdfs:label "pretectum" ;
rdfs:comment "Multi-tissue structure that is the dorsal part of the diencephalon and the major sensory input to which is visual." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_1000016 a rdfs:Class ;
rdfs:label "NF stage 6 (32-cell)" ;
rdfs:comment "Nieuwkoop and Faber stage 6, corresponding to an embryo of age 3 hr at 22-24 Celsius and having the following external morphological criteria: Advanced thirty-two cell stage. Distinction between dorsal and ventral micromeres as in preceding stage. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004207 a rdfs:Class ;
rdfs:label "posterior placodal area" ;
rdfs:comment "One of the 3 domains of the U-shaped preplacodal ectoderm (PPE), which lies abutting and lateral to the chordal neural plate border and neural crest." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003239 a rdfs:Class ;
rdfs:label "circulating cell" ;
rdfs:comment "A cell that moves among different tissues of the body, via blood, lymph, or other medium." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000081 a rdfs:Class ;
rdfs:label "hindlimb region" ;
rdfs:comment "The region from which the hindlimb develops, first recognizable as a slight concentration of mesenchymal cells dorsal and lateral to the anal tube at NF stage 43. The epidermal layers thicken dramatically through to NF stage 48, and become vascularised by NF stage 49." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003005 a rdfs:Class ;
rdfs:label "female organism" ;
rdfs:comment "Gonochoristic organism that can produce female gametes." ;
rdfs:subClassOf obo:XAO_0003004 .
obo:XAO_0006048 a rdfs:Class ;
rdfs:label "supporting cell" ;
rdfs:comment "A major cell type which expresses cytokeratin type II, seen in the olfactory epithelium. The typical morphology has an apical cell soma (cell body) position and thin processes connecting to the basal lamina of the main olfcatory epithelium." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0005117 a rdfs:Class ;
rdfs:label "germinal granule" ;
rdfs:comment "A characteristic, electrondense germ plasm organelle encapsulating the cytoplasmic face of the nuclear envelope of the cells destined to the germline fate." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_1000062 a rdfs:Class ;
rdfs:label "NF stage 50" ;
rdfs:comment "Nieuwkoop and Faber stage 50, corresponding to a tadpole of age about 15 days at 22-24 Celsius and having the following external morphological criteria: Forelimb bud somewhat oval-shaped in dorsal aspect. Hindlimb bud longer than broad, constricted at base, distal outline somewhat conical. Length: 20 - 27 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004267 a rdfs:Class ;
rdfs:label "interneuron" ;
rdfs:comment "A multipolar neuron that connects afferent neurons and efferent neurons in neural pathways. They are found within the central nervous system and enteric nervous system." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_1000019 a rdfs:Class ;
rdfs:label "NF stage 9" ;
rdfs:comment "Nieuwkoop and Faber stage 9, corresponding to an embryo of age 7 hr at 22-24 Celsius and having the following external morphological criteria: Fine-cell blastula stage. Animal cells smaller at dorsal than at ventral side. Border between marginal zone and vegetative field distinct, particularly dorsally, owing to difference in cell size. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003132 a rdfs:Class ;
rdfs:label "myotome of trunk somite 12" ;
rdfs:comment "Compartment of trunk somite 12 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0004552 a rdfs:Class ;
rdfs:label "glomerular layer of the olfactory bulb" ;
rdfs:comment "Superficial layer of the olfactory bulb, composed of spherical glomeruli, where input from olfactory receptor neurons is first organized and processed." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000038 a rdfs:Class ;
rdfs:label "NF stage 22" ;
rdfs:comment "Nieuwkoop and Faber stage 22, corresponding to an embryo of age 24 hr at 22-24 Celsius and having the following external morphological criteria: Distinct protrusion of eyes. Initial groove between jaw- and gill-areas only at latero-dorsal side. Lateral and ventral outlines of embryo slightly concave. Anal opening displaced to ventral side. Vitelline membrane becoming wider. Length: 2.0 - 2.2 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000340 a rdfs:Class ;
rdfs:label "right channel of ventral aorta" ;
rdfs:comment "Of the paired ventral aortas in the tadpole, the one that branches into the right aortic arches." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004459 a rdfs:Class ;
rdfs:label "subocular cartilage" ;
rdfs:comment "Cartilaginous element that is below the trabecula and parachordal." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004177 a rdfs:Class ;
rdfs:label "dorsal longitudinal anastomosing vessel" ;
rdfs:comment "Vessel into which intersomitic vessels enter in a regular pattern at each intersomitic junction. Posterior to the gut, the DLAV drains into the fused posterior cardinal vein by a minor right branch and a major left branch. By NF stage 36 the DLAV extends fully to the tip of the tail." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0004256 a rdfs:Class ;
rdfs:label "ventral abdominal vein" ;
rdfs:comment "A vein formed by the combination of veins in the pelvic region that collects blood from the liver, stomach, intestines, and gall bladder." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0005080 a rdfs:Class ;
rdfs:label "dermomyotome" ;
rdfs:comment "The bilaminar epithelium formed from the myotome and dermatome." ;
rdfs:subClassOf obo:XAO_0004006 .
obo:XAO_0001101 a rdfs:Class ;
rdfs:label "first pancreatic bud" ;
rdfs:comment "One of two pancreatic primordia that give rise to a ventral pancreatic bud." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004296 a rdfs:Class ;
rdfs:label "hindlimb stylopod" ;
rdfs:comment "Stylopod (the limb segment closet to the body) that is part of a hindlimb." ;
rdfs:subClassOf obo:XAO_0004263 .
obo:XAO_0005253 a rdfs:Class ;
rdfs:label "obsolete right olfactory pit" .
obo:XAO_0000256 a rdfs:Class ;
rdfs:label "oocyte" ;
rdfs:comment "The developing female gamete, the differentiation of which is classified into six stages: I (pre-vitellogenic), II (early vitellogenic), III (mid-vitellogenic, formation of pigment), IV (polarization along animal-vegetal axis), V (late vitellogenic), and VI (post-vitellogenic, appearance of equatorial band)." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0005022 a rdfs:Class ;
rdfs:label "hepatocyte" ;
rdfs:comment "A type of cell comprising the main structural component of the liver." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0004563 a rdfs:Class ;
rdfs:label "lateral pallium" ;
rdfs:comment "Subdivision of the pallium that is located laterally." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004525 a rdfs:Class ;
rdfs:label "medium cavity" ;
rdfs:comment "Water-filled cavity in the adult frog that is apposed to an olfactory epithelium for detection of aqueous odorants." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0004214 a rdfs:Class ;
rdfs:label "accessory nerve" ;
rdfs:comment "Small motor nerve that emerges from the lateral wall of the medulla with the roots of the vagus nerve, and innervates a single pectoral suspensory muscle, the m. cucullaris." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0003071 a rdfs:Class ;
rdfs:label "obsolete fore propodium" .
obo:XAO_0004368 a rdfs:Class ;
rdfs:label "infrarostral" ;
rdfs:comment "Cartilaginous element comprising cartilages that articulate with Meckel's cartilage in the lower jaw and are fused medially." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000452 a rdfs:Class ;
rdfs:label "ultimobranchial body" ;
rdfs:comment "Anatomical structure that includes small, calcitonin producing glands originating as epithelial growths from the sixth pharyngeal pouch." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003100 a rdfs:Class ;
rdfs:label "medulla oblongata" ;
rdfs:comment "Posterior portion of the hindbrain that controls respiration, heartbeat, digestion, and swallowing as well as some locomotor responses." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000352 a rdfs:Class ;
rdfs:label "aortic arch 5" ;
rdfs:comment "The fifth in a series paired arterial connections between the dorsal and ventral aortae. Aortic arch 5 artery is paired and has a common trunk with aortic arch 6 from the ventral aorta, and drains via a separate branch of the lateral dorsal aorta. Aortic arches 5 and 6 supply the trunk and tail with oxygenated blood." ;
rdfs:subClassOf obo:XAO_0000341 .
obo:XAO_0004544 a rdfs:Class ;
rdfs:label "central nucleus of the thalamus" ;
rdfs:comment "Nucleus that is located centrally in the thalamus." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0003034 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." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0003171 a rdfs:Class ;
rdfs:label "orbital region" ;
rdfs:comment "An anatomical cluster that is part of the cranium and structurally supports the eye." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004514 a rdfs:Class ;
rdfs:label "anterior tectum" ;
rdfs:comment "The anterior part of the optic tectum." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004097 a rdfs:Class ;
rdfs:label "horizontal cell" ;
rdfs:comment "A neuron that laterally connects other neurons in the inner nuclear layer of the retina." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0005112 a rdfs:Class ;
rdfs:label "dorsal vegetal hemisphere blastomere" ;
rdfs:comment "Blastomere that is any of blastomeres D2.1 and D2.2 and their children cells after division, D2.1.1, D2.1.2, D2.2.1 and D2.2.2, on the left and right sides of embryo." ;
rdfs:subClassOf obo:XAO_0000279 .
obo:XAO_0004363 a rdfs:Class ;
rdfs:label "commisura quadratocranialis anterior" ;
rdfs:comment "Cartilaginous element comprising the rostral connection of the palatoquadrate cartilage to the neurocranium." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000138 a rdfs:Class ;
rdfs:label "mesentery" ;
rdfs:comment "A double layer of tissue composed of peritoneum that attaches the visceral organs to the body wall." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0005037 a rdfs:Class ;
rdfs:label "migrating macrophage" ;
rdfs:comment "Any of the hematopoietic stem cell derived phagocytic cells that are first observed in the ventral blood island at NF stages 17-18 and at stage 20 begin to migrate over the whole embryo between the epidermis and the mesoderm, completing their migration by stage 25." ;
rdfs:subClassOf obo:XAO_0005025 .
obo:XAO_0000238 a rdfs:Class ;
rdfs:label "rectum" ;
rdfs:comment "The terminal portion of the large intestine." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004019 a rdfs:Class ;
rdfs:label "vertebra" ;
rdfs:comment "Main component of the vertebral column. It consists of two essential parts, a dorsal neural arch and a ventral centrum." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0004333 a rdfs:Class ;
rdfs:label "m. intermandibularis" ;
rdfs:comment "Ventral muscle of the larval head that is a broad transverse sheet lying between the Meckel's cartilages and joining its opposite mid-ventrally in an median raphe." ;
rdfs:subClassOf obo:XAO_0004323 .
obo:XAO_0000049 a rdfs:Class ;
rdfs:label "cement gland primordium" ;
rdfs:comment "The thickening of the epithelial layer of the ectoderm, with corresponding dark pigmentation, on the anterior dorso-ventral surface of the embryo." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004614 a rdfs:Class ;
rdfs:label "ciliary axoneme" ;
rdfs:comment "The bundle of microtubules and associated proteins that forms the core of cilia and is responsible for their movements." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004585 a rdfs:Class ;
rdfs:label "telencephalon septum" ;
rdfs:comment "Gray matter structure located on the midline of the forebrain consisting of the septum pellucidum and the septal nuclei." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0004466 a rdfs:Class ;
rdfs:label "serous membrane" ;
rdfs:comment "Multi-tissue structure that comprises a secretory epithelial layer and a connective tissue layer." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004374 a rdfs:Class ;
rdfs:label "planum hypobranchiale" ;
rdfs:comment "One of the cartilaginous elements that meet and articulate in the median plane posterior to the basibranchial." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004138 a rdfs:Class ;
rdfs:label "sensory epithelial cell" ;
rdfs:comment "A specialized epithelial cell involved in sensory perception. Restricted to special sense organs of the olfactory, gustatory, and vestibuloauditory systems; they contain sensory cells surrounded by supportive, non-receptive cells." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0005149 a rdfs:Class ;
rdfs:label "m. levator scapulae superior" ;
rdfs:comment "Superior aspect of the cranial muscle that passes between the otic capsule and the scapula. It originates on the otic capsule just caudal to the oval window." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_1000008 a rdfs:Class ;
rdfs:label "tadpole stage" ;
rdfs:comment "The post-embryonic Xenopus developmental stage from feeding to the end of metamorphosis, encompassing Weisz's first-form tadpole (equivalent to Nieuwkoop and Faber 45 to 49), second-form tadpole (NF 49 to 56) and third-form tadpole (NF 56 to 60-plus) stages." ;
rdfs:subClassOf obo:XAO_1000095 .
obo:XAO_0004520 a rdfs:Class ;
rdfs:label "proximal tubule branch" ;
rdfs:comment "A distal stem cell region of the proximal tubule. There are 3 branches, with anteriodorsal, anterioventral, and posterior positions. These are sometimes referred to as proximal tubule segment 1 or PT1." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000330 a rdfs:Class ;
rdfs:label "Mullerian duct" ;
rdfs:comment "Transient developmental organ that gives rise to oviducts in females (and is documented to persist in some male frogs)." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_0004538 a rdfs:Class ;
rdfs:label "anteroventral tegmental nucleus" ;
rdfs:comment "Nucleus located anteroventrally in the midbrain tegmentum." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0000150 a rdfs:Class ;
rdfs:label "obsolete loop of Henle" .
obo:XAO_0005181 a rdfs:Class ;
rdfs:label "ascending interneuron" ;
rdfs:comment "An interneuron which grows from the soma in an ascending (from tail to head) direction." ;
rdfs:subClassOf obo:XAO_0004267 .
obo:XAO_0003105 a rdfs:Class ;
rdfs:label "myotome of head somite 2" ;
rdfs:comment "Compartment of head somite 2 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0003060 a rdfs:Class ;
rdfs:label "skeletal system" ;
rdfs:comment "Anatomical system that provides physical support to the organism." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0000357 a rdfs:Class ;
rdfs:label "arterial endothelium" ;
rdfs:comment "The thin layer of cells that lines the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0003198 a rdfs:Class ;
rdfs:label "visual system" ;
rdfs:comment "The sensory system used for sight." ;
rdfs:subClassOf obo:XAO_0003194 .
obo:XAO_0000149 a rdfs:Class ;
rdfs:label "obsolete renal proximal convoluted tubule" .
obo:XAO_0000278 a rdfs:Class ;
rdfs:label "animal part, late involuting" ;
rdfs:comment "When the marginal zone mesoderm undergoes involution, where the marginal zone contacts the vegetal base." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004121 a rdfs:Class ;
rdfs:label "apical ectodermal ridge" ;
rdfs:comment "A thickened layer of ectodermal cells at the distal tip of a developing limb bud. Along with the zone of polarizing activity, it is a crucial organizing region during limb development." ;
rdfs:subClassOf obo:XAO_0004122 .
obo:XAO_0004410 a rdfs:Class ;
rdfs:label "interdigital mesenchyme" ;
rdfs:comment "Mesenchyme that occupies the interdigital region of a limb bud." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0003125 a rdfs:Class ;
rdfs:label "myotome of trunk somite 9" ;
rdfs:comment "Compartment of trunk somite 9 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0003212 a rdfs:Class ;
rdfs:label "metatarsus" ;
rdfs:comment "Each of the bones forming the part of the foot between the toes and the heel." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_0003165 a rdfs:Class ;
rdfs:label "cavitated compound organ" ;
rdfs:comment "Compound organ that contains one or more macroscopic anatomical spaces." ;
rdfs:subClassOf obo:XAO_0003041 .
obo:XAO_0004401 a rdfs:Class ;
rdfs:label "apical epithelial cap" ;
rdfs:comment "A layer of signaling cells at the apex of a regenerating blastema, which has a vital role in regeneration." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0004025 a rdfs:Class ;
rdfs:label "dermal skeleton" ;
rdfs:comment "Skeletal subdivision that undergoes direct development and includes elements that either develop in association with the basement membrane of the ectoderm or are homologous with such elements; includes dermatocranium, components of the appendicular skeleton, teeth and tooth-like elements of the oropharynx, and integumentary elements." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0004058 a rdfs:Class ;
rdfs:label "ampullary nerve" ;
rdfs:comment "Nerve that is a branch of cranial nerve VIII and innervates the cristae ampullaris." ;
rdfs:subClassOf obo:XAO_0003047 .
obo:XAO_0005055 a rdfs:Class ;
rdfs:label "ventral septum" ;
rdfs:comment "A set of septal nuclei comprising the ventral aspect of the forebrain septum." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0001021 a rdfs:Class ;
rdfs:label "notochordal epithelium" ;
rdfs:comment "Outer layer of cells of the differentiating notochord, which give rise to the elastica externa and interna." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0000287 a rdfs:Class ;
rdfs:label "early distal tubule" ;
rdfs:comment "Portion of the pronephric tubule that is immediately posterior to the late proximal tubule and anterior to the late distal segment." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004272 a rdfs:Class ;
rdfs:label "migrating neuroblast" ;
rdfs:comment "Any of the neuronal precursor cells that are isolated and scattered throughout the anterior ventro-lateral region of the embryo, generally in a punctate pattern, immediately below the ectoderm." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005275 a rdfs:Class ;
rdfs:label "obsolete right hindlimb" .
obo:XAO_0000267 a rdfs:Class ;
rdfs:label "hypophyseal primordium" ;
rdfs:comment "The hypophyseal layer that separates from the stomodeal layer of the stomodeal-hypophyseal primordium at NF stage 29 and 30." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0000055 a rdfs:Class ;
rdfs:label "notochord" ;
rdfs:comment "A longitudinal flexible rod of cells that in the embryo forms the supporting axis of the body. It degenerates, beginning anteriorly, at NF stage 46. Its posterior portion is greatly reduced by NF stage 55 and the entire structure is gone by NF stage 65." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000066 a rdfs:Class ;
rdfs:label "endocardium" ;
rdfs:comment "Part of the heart composed of thin serous membrane and endothelial tissue, that lines the interior of the heart." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004311 a rdfs:Class ;
rdfs:label "regenerating limb" ;
rdfs:comment "A portion of limb tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0005134 a rdfs:Class ;
rdfs:label "microglial cell" ;
rdfs:comment "The smallest glial cell type in the central nervous system, cells of this type actively detect inflammatory responses/infection. They transform to a phagocytotic form, actively removing infective agents, and thus can present antigens to immune system cells." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_1000055 a rdfs:Class ;
rdfs:label "NF stage 43" ;
rdfs:comment "Nieuwkoop and Faber stage 43, corresponding to an embryo of age 3 days, 15 hr at 22-24 Celsius and having the following external morphological criteria: Lateral line system becoming visible externally. Cement gland losing its pigment. Torsion of intestine about 180 degrees; proctodeum narrower, arched or S-shaped. Length: 7.5 - 8.3 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004379 a rdfs:Class ;
rdfs:label "processus retroarticularis of Meckel's cartilage" ;
rdfs:comment "Cartilaginous element that forms at the posteroventral tip of Meckel's cartilage." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0005044 a rdfs:Class ;
rdfs:label "Schwann cell" ;
rdfs:comment "A glial cell that ensheaths axons of neurons in the peripheral nervous system and is necessary for their maintainance and function. Multiple Schwann cells wrap each axon." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_0002000 a rdfs:Class ;
rdfs:label "pronephric kidney" ;
rdfs:comment "Transient embryonic organ that serves as a kidney, providing osmoregulation during early developmental stages, and then degenerates during metamorphosis (starting at NF stage 53) as the mesonephric kidney develops and becomes functional." ;
rdfs:subClassOf obo:XAO_0003037 , obo:XAO_0005243 .
obo:XAO_0005229 a rdfs:Class ;
rdfs:label "afferent neuron" ;
rdfs:comment "A neuron that transmits nerve impulses to the central nervous system from sensory stimuli." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0000463 a rdfs:Class ;
rdfs:label "middle lateral line" ;
rdfs:comment "A lateral line that extends from the ear in a posterior direction between the upper and lower lateral lines." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0000444 a rdfs:Class ;
rdfs:label "thyroid primordium" ;
rdfs:comment "The initial thyroid precursor, which arises from the ventral aspect of the second pharyngeal pouch." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003012 a rdfs:Class ;
rdfs:label "cell" ;
rdfs:comment "Anatomical structure that has as its parts a maximally connected cell compartment surrounded by a plasma membrane." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0004160 a rdfs:Class ;
rdfs:label "cerebral vein" ;
rdfs:comment "The cerebral veins are divisible into external and internal groups according to the outer surfaces or the inner parts of the hemispheres they drain into. The veins are the anterior cerebral veins, posterior cerebral veins, and middle cerebral vein which cross dorsally between the bilateral vena capitis lateralis." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0003097 a rdfs:Class ;
rdfs:label "vagus nerve" ;
rdfs:comment "Cranial nerve that branches into the lateral (to body sense organs) and the intestino-accessorial (to the skin, muscles of shoulder, hyoid, larynx, gut, lungs, and heart)." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0004074 a rdfs:Class ;
rdfs:label "intersomitic region" ;
rdfs:comment "Anatomical region between somites." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003217 a rdfs:Class ;
rdfs:label "retinal pigmented epithelium" ;
rdfs:comment "The monolayer of pigmented epithelium covering the neural retina." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_1000084 a rdfs:Class ;
rdfs:label "oocyte stage II" ;
rdfs:comment "The early vitellogenic stage of the developing female gamete." ;
rdfs:subClassOf obo:XAO_1000082 .
obo:XAO_0001102 a rdfs:Class ;
rdfs:label "second pancreatic bud" ;
rdfs:comment "Second of two pancreatic primordia that give rise to a ventral pancreatic bud." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004448 a rdfs:Class ;
rdfs:label "laryngeal muscle primordium" ;
rdfs:comment "The presumptive cells of laryngeal muscle." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0005264 a rdfs:Class ;
rdfs:label "dorsal tail" ;
rdfs:comment "Part of the tail located on the dorsal side of the organism." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0004402 a rdfs:Class ;
rdfs:label "pseudoblastema" ;
rdfs:comment "Following amputation in late prometamorphosis or in young froglets, tissue comprising fibroblast-like cells in a limb stump that aggregate beneath the wound epithelia." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0003027 a rdfs:Class ;
rdfs:label "limb" ;
rdfs:comment "Organism subdivision that has as its parts the jointed appendages used for locomotion and manipulation." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0000428 a rdfs:Class ;
rdfs:label "trigeminal ganglion" ;
rdfs:comment "A prominent collection of touch-sensory neurons of the trigeminal or fifth cranial nerve, positioned beside the brain between the eye and the ear." ;
rdfs:subClassOf obo:XAO_0000209 .
obo:XAO_0004065 a rdfs:Class ;
rdfs:label "ventral fin margin" ;
rdfs:comment "Fin margin which is part of the ventral fin." ;
rdfs:subClassOf obo:XAO_0005171 .
obo:XAO_0004041 a rdfs:Class ;
rdfs:label "mineralized hyaline cartilage tissue" ;
rdfs:comment "Hyaline cartilage tissue that is mineralized." ;
rdfs:subClassOf obo:XAO_0004039 .
obo:XAO_0005502 a rdfs:Class ;
rdfs:label "main body axis" ;
rdfs:comment "A principle subdivision of the organism that includes all structures along the primary axis, typically the anterior-posterior axis, from head to tail, including structures of the body proper where present (for example, ribs), but excluding appendages." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0004300 a rdfs:Class ;
rdfs:label "foot" ;
rdfs:comment "Terminal portion of a hindlimb that bears weight and allows locomotion." ;
rdfs:subClassOf obo:XAO_0004265 .
obo:XAO_0004262 a rdfs:Class ;
rdfs:label "ventral caudal lymphatic vessel" ;
rdfs:comment "Lymphatic vessel located in the posterior ventral region of the trunk, ventral to the posterior cardinal vein." ;
rdfs:subClassOf obo:XAO_0000375 .
obo:XAO_0003086 a rdfs:Class ;
rdfs:label "suspensorium" ;
rdfs:comment "Anatomical cluster consisting of the mandibular structures which connect the base of the lower jaw with the skull." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004483 a rdfs:Class ;
rdfs:label "retinal stem cell" ;
rdfs:comment "Cell that is present in the stem cell region of the retinal ciliary marginal zone." ;
rdfs:subClassOf obo:XAO_0003054 .
obo:XAO_1000023 a rdfs:Class ;
rdfs:label "NF stage 13" ;
rdfs:comment "Nieuwkoop and Faber stage 13, corresponding to an embryo of age 14 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Slit-blastopore stage. Neural plate faintly delimited; slight elevation of its rostral part and slight flattening of its caudal part. Caudal part of median groove formed. Length: 1.5 - 1.6 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004340 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium I" ;
rdfs:comment "The 1st branchial levator muscle, which contributes to raising the branchial apparatus." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0004437 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium I primordium" ;
rdfs:comment "The presumptive cells of the levator arcuum branchialium I muscles." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0003062 a rdfs:Class ;
rdfs:label "hindlimb skeleton" ;
rdfs:comment "The collection of all skeletal elements in a free hindlimb region." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0004234 a rdfs:Class ;
rdfs:label "bulbous arteriosis" ;
rdfs:comment "Multi-tissue structure through which the blood exits the heart. It is a chamber that functions as a capacitor, maintaining continuous blood flow into the gill arches." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004229 a rdfs:Class ;
rdfs:label "fin crest" ;
rdfs:comment "The thin epidermis extension of the inner fin visible in the mid trunk region of the inner fin at NF stage 27, and extending posteriorly and then ventrally, ending just before the proctodeum. The fin is more homogeneous in NF stage 46 tadpoles, and the inner fin and fin crest are no longer discrete." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0003158 a rdfs:Class ;
rdfs:label "B-cell" ;
rdfs:comment "A lymphocyte of B lineage that is capable of B-cell mediated immunity and develops in the spleen and liver (but not in the bone marrow)." ;
rdfs:subClassOf obo:XAO_0003155 .
obo:XAO_0004274 a rdfs:Class ;
rdfs:label "articular system" ;
rdfs:comment "Anatomical system that consists of all the joints of the body." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0000447 a rdfs:Class ;
rdfs:label "branchial arch 1" ;
rdfs:comment "The most anterior, or first, pharygeal/branchial arch, composed of the mandibular process, forming the posterior border of the stomodeum, and the maxillary process anterior to the stomodeum, containing the first aortic arch." ;
rdfs:subClassOf obo:XAO_0000099 .
obo:XAO_0006037 a rdfs:Class ;
rdfs:label "myelinating Schwann cell" ;
rdfs:comment "A neuroglial cell of the peripheral nervous system which forms the insulating myelin sheaths of peripheral axons." ;
rdfs:subClassOf obo:XAO_0005044 .
obo:XAO_0004533 a rdfs:Class ;
rdfs:label "anterior commissure" ;
rdfs:comment "A forebrain white matter structure consisting of a large fiber bundle, connecting the two cerebral hemispheres across the middle line." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0003001 a rdfs:Class ;
rdfs:label "anatomical group" ;
rdfs:comment "Anatomical structure consisting of at least two non-overlapping organs, multi-tissue aggregates or portion of tissues or cells of different types that does not constitute an organism, organ, multi-tissue aggregate, or portion of tissue." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0004203 a rdfs:Class ;
rdfs:label "pre-enameloid" ;
rdfs:comment "Odontoid tissue that is avascular non-mineralized matrix that is deposited by odontoblasts and ameloblasts that are excluded from the matrix." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_0003136 a rdfs:Class ;
rdfs:label "myotome of tail somite 14" ;
rdfs:comment "Compartment of tail somite 14 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0000170 a rdfs:Class ;
rdfs:label "cartilage tissue" ;
rdfs:comment "A type of dense connective tissue that is composed of specialized cells, chondrocytes, that produce a large amount of extracellular matrix." ;
rdfs:subClassOf obo:XAO_0004038 .
obo:XAO_0004240 a rdfs:Class ;
rdfs:label "branchial vein" ;
rdfs:comment "Type of vein that drains the gill region and which passes backwards lateral to the gill chambers and opens into the pronephric sinus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000272 a rdfs:Class ;
rdfs:label "Jacobson's organ" ;
rdfs:comment "An auxiliary olfactory sense organ involved in the detection of pheromones." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004506 a rdfs:Class ;
rdfs:label "interdigital webbing" ;
rdfs:comment "The tissue or tissues between the digits of the forelimb and the hindlimb." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004251 a rdfs:Class ;
rdfs:label "cutaneous magnus" ;
rdfs:comment "Vein that comes from the skin of the trunk." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004471 a rdfs:Class ;
rdfs:label "atrial septum" ;
rdfs:comment "Cardiac septum that separates the right atrium from the left atrium." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0004470 a rdfs:Class ;
rdfs:label "trabecula carnea" ;
rdfs:comment "A type of trabecula that consists of a rounded or irregular column that projects from the inner surface of the ventricle of the heart." ;
rdfs:subClassOf obo:XAO_0004469 .
obo:XAO_0003116 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 4" ;
rdfs:comment "Compartment of trunk somite 4 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0000351 a rdfs:Class ;
rdfs:label "obsolete secondary vessel" .
obo:XAO_0004094 a rdfs:Class ;
rdfs:label "lens epithelium" ;
rdfs:comment "Epithelium that borders the anterior and equitorial region of the lens. Lens growth occurs via the differentiation of additional fibre cells from lens epithelial cells." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0004110 a rdfs:Class ;
rdfs:label "eye photoreceptor cell" ;
rdfs:comment "A cell found in the retina of the eye that is specialized to detect and transduce light." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000206 a rdfs:Class ;
rdfs:label "blastocoel anlage" ;
rdfs:comment "The first appearance of the anatomical space that will become the blastocoel." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004322 a rdfs:Class ;
rdfs:label "cranial muscle" ;
rdfs:comment "Any of the muscles that are part of the head." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_0000045 a rdfs:Class ;
rdfs:label "pre-chordal neural plate" ;
rdfs:comment "The portion of neural plate anterior to the mid-hindbrain junction." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000001 a rdfs:Class ;
rdfs:label "NF stage 1" ;
rdfs:comment "Nieuwkoop and Faber stage 1, corresponding to an embryo of age 0 hr and having the following external morphological criteria: One cell stage, shortly after fertilization. Pigmentation darker ventrally than dorsally. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004043 a rdfs:Class ;
rdfs:label "non-mineralized cartilage tissue" ;
rdfs:comment "Cartilage tissue that is not mineralized." ;
rdfs:subClassOf obo:XAO_0000170 .
obo:XAO_0003082 a rdfs:Class ;
rdfs:label "obsolete sucker" .
obo:XAO_0005320 a rdfs:Class ;
rdfs:label "roof of mouth" ;
rdfs:comment "A multi-tissue structure consisting of bone and soft tissue that forms a part of the roof of the oral cavity." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005156 a rdfs:Class ;
rdfs:label "stomach body" ;
rdfs:comment "The section of the stomach which lies between the fundus and the pyloric antrum." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003206 a rdfs:Class ;
rdfs:label "podocyte" ;
rdfs:comment "Cell type that is a component of the glomus." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0001019 a rdfs:Class ;
rdfs:label "proctodeum" ;
rdfs:comment "Inward fold on the surface of the embryonic ectoderm that develops into the common cloacal passage. The most posterior section of the larval alimentary system." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0004415 a rdfs:Class ;
rdfs:label "hindlimb digit 5" ;
rdfs:comment "The most anterior and longest of the hind digits, consisting of a single metatarsal, 3 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003035 .
obo:XAO_1000066 a rdfs:Class ;
rdfs:label "NF stage 54" ;
rdfs:comment "Nieuwkoop and Faber stage 54, corresponding to a tadpole of age about 26 days at 22-24 Celsius and having the following external morphological criteria: All four fingers indicated; edge of hand slightly scalloped between fingers; melanophores appearing on forelimb. Length of hindlimb without foot nearly twice its breadth; all five toes indicated, the second only very slightly. Length: 58 - 65 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_1000049 a rdfs:Class ;
rdfs:label "NF stage 35 and 36" ;
rdfs:comment "Nieuwkoop and Faber stage 35/36, corresponding to an embryo of age 2 days, 2 hr at 22-24 Celsius and having the following external morphological criteria: Stomodeal invagination roundish. Eye entirely black, choroid fissure nearly closed. Formation of two gill rudiments, anterior one nipple-shaped. Melanophores appearing on back. Posterior outline of proctodeum still curved. Length of tail bud about three times its breadth. Beginning of hatching. Length: 5.3 - 6.0 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_1000012 a rdfs:Class ;
rdfs:label "embryonic stage" ;
rdfs:comment "Xenopus developmental stage that starts with fertilization and ends with the formed feeding larva." ;
rdfs:subClassOf obo:XAO_1000000 .
obo:XAO_0000469 a rdfs:Class ;
rdfs:label "dorsal tail fin" ;
rdfs:comment "The dorsal part of the tail fin." ;
rdfs:subClassOf obo:XAO_0000002 .
obo:XAO_0003176 a rdfs:Class ;
rdfs:label "splanchnocranium" ;
rdfs:comment "Regional skeletal system of the jaws, hyoid and branchial arches." ;
rdfs:subClassOf obo:XAO_0003075 .
obo:XAO_0004030 a rdfs:Class ;
rdfs:label "dense regular connective tissue" ;
rdfs:comment "Connective tissue that is dominated by collagen fibers organized into a definitive pattern (e.g., parallel to one another), with comparatively fewer cells (mostly fibroblasts)." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0004472 a rdfs:Class ;
rdfs:label "sinus venosus" ;
rdfs:comment "A large quadrangular cavity that precedes the atrium on the venous side of the heart." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003073 a rdfs:Class ;
rdfs:label "postcranial axial skeleton" ;
rdfs:comment "Skeletal structure that has as its parts the vertebral column, located in the dorsal part of the trunk, and is formed by a series of vertebrae. It provides suspension for the appendicular skeleton and protection for the spinal nerve cord." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0003266 a rdfs:Class ;
rdfs:label "liver primordium" ;
rdfs:comment "Embryonic primordium consisting of an endodermal thickening that develops into the liver." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004032 a rdfs:Class ;
rdfs:label "proteinaceous extracellular matrix" ;
rdfs:comment "A layer consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that forms a sheet underlying or overlying cells such as endothelial and epithelial cells. The proteins are secreted by cells in the vicinity." ;
rdfs:subClassOf obo:XAO_0004027 .
obo:XAO_0004283 a rdfs:Class ;
rdfs:label "paired appendage" ;
rdfs:comment "Appendage that is one of the anterior or posterior paired appendages (i.e. the forelimbs and hindlimbs)." ;
rdfs:subClassOf obo:XAO_0000218 .
obo:XAO_0003234 a rdfs:Class ;
rdfs:label "alkali secreting cell" ;
rdfs:comment "A cell that secretes alkaline substances." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005026 a rdfs:Class ;
rdfs:label "presumptive rhombomere" ;
rdfs:comment "Embryonic structure that gives rise to a rhombomere." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000379 a rdfs:Class ;
rdfs:label "external jugular vein" ;
rdfs:comment "One of the bilateral pairs of vessels clearly seen on the ventral surface of the head, running between the heart and the tip of the jaw, and draining the filter apparatus. This vein is more developed by NF stage 45, when it crosses the head dorsolaterally to drain into the Duct of Cuvier and pronephric sinus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0005145 a rdfs:Class ;
rdfs:label "fundus" ;
rdfs:comment "The section of the stomach which lies between the cardia and the stomach body, and contains the fundic glands." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003048 a rdfs:Class ;
rdfs:label "egg" ;
rdfs:comment "A mature female germ cell that is capable of initiating formation of a new individual by fusion with a male gamete." ;
rdfs:subClassOf obo:XAO_0003150 .
obo:XAO_0004003 a rdfs:Class ;
rdfs:label "anatomical line" ;
rdfs:comment "Non-material anatomical entity of one dimension, which forms a boundary of an anatomical surface or is a modulation of an anatomical surface." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0004567 a rdfs:Class ;
rdfs:label "magnocellular preoptic nucleus" ;
rdfs:comment "A nucleus situated in the preoptic area that contains large neurosecretory neurons." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0003187 a rdfs:Class ;
rdfs:label "medial" ;
rdfs:comment "Spatial concept pertaining to being toward the middle or inside." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0000167 a rdfs:Class ;
rdfs:label "parathyroid" ;
rdfs:comment "An organ specialized for secretion of parathyroid hormone. It controls the amount of calcium in the blood and within the bones." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005327 a rdfs:Class ;
rdfs:label "chordal neural crest" ;
rdfs:comment "Neural crest comprising sacral, vagal, and trunk neural crest." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000077 a rdfs:Class ;
rdfs:label "bottle cell" ;
rdfs:comment "Early embryonic cell with a bottle or flask shape that is first to migrate inwards at the blastopore during gastrulation." ;
rdfs:subClassOf obo:XAO_0003244 .
obo:XAO_1000073 a rdfs:Class ;
rdfs:label "NF stage 61" ;
rdfs:comment "Nieuwkoop and Faber stage 61, corresponding to a tadpole of age about 48 days at 22-24 Celsius and having the following external morphological criteria: Head narrower. Tentacles considerably shortened, mostly curved backwards. Length of n. olfactorius equal to diameter of bulbus olfactorius. 4th arterial arch seen just in front of adult skin area of forelimb. Openings of gill chambers considerably narrowed. Forelimb at level of posterior half of heart. Adult skin area on abdomen covering posterior half of heart. Fins considerably reduced." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003147 a rdfs:Class ;
rdfs:label "spermatozoon" ;
rdfs:comment "A mature male germ cell that develops from a spermatid." ;
rdfs:subClassOf obo:XAO_0003150 .
obo:XAO_0003223 a rdfs:Class ;
rdfs:label "retinal ganglion cell layer" ;
rdfs:comment "Innermost nuclear layer of the retina, consisting of retinal ganglion cells, containing neurons that project axons through the optic nerve to the brain." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006006 a rdfs:Class ;
rdfs:label "cytoplasmic bridge" ;
rdfs:comment "A thin cytoplasmic process/physical structure that bridges two cells (e.g., photoreceptor cells or retinal ganglion cells)." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003000 a rdfs:Class ;
rdfs:label "anatomical structure" ;
rdfs:comment "Material anatomical entity that has inherent 3D shape and is generated by coordinated expression of the organism's own genome." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0005091 a rdfs:Class ;
rdfs:label "blastomere D2.2" ;
rdfs:comment "Blastomere which lies in the vegetal hemisphere lateral to blastomere D2.1 at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005112 .
obo:XAO_0004218 a rdfs:Class ;
rdfs:label "palatoquadrate" ;
rdfs:comment "The dorsal component of the mandibular arch, the ventral one being Meckel's cartilage. Together with the ceratohyal and connecting musculature, it is responsible for the ventilation and irrigation of the filter apparatus." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000240 a rdfs:Class ;
rdfs:label "lens placode" ;
rdfs:comment "A thickened portion of ectoderm that serves as the precursor to the lens." ;
rdfs:subClassOf obo:XAO_0005283 .
obo:XAO_0005297 a rdfs:Class ;
rdfs:label "foregut epithelium" ;
rdfs:comment "The epithelium of the foregut." ;
rdfs:subClassOf obo:XAO_0003200 .
obo:XAO_0000181 a rdfs:Class ;
rdfs:label "globe" ;
rdfs:comment "A general term for the whole eye, or eye ball, of an organism." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004556 a rdfs:Class ;
rdfs:label "habenula" ;
rdfs:comment "Region of the thalamus adjoining the pineal gland." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000143 a rdfs:Class ;
rdfs:label "urinary system" ;
rdfs:comment "Anatomical system that has as its parts the organs concerned with the production and excretion of urine." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0004080 a rdfs:Class ;
rdfs:label "rhombomere R2" ;
rdfs:comment "The 2nd most anterior segment of the developing hindbrain, which along with r3 is dorsal to brancial arch 1." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0000119 a rdfs:Class ;
rdfs:label "lung" ;
rdfs:comment "Either of two organs that allow gas exchange absorbing oxygen from inhaled air and releasing carbon dioxide with exhaled air." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003165 .
obo:XAO_0003038 a rdfs:Class ;
rdfs:label "simple organ" ;
rdfs:comment "Multi-tissue structure that is not part of a compound organ." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004618 a rdfs:Class ;
rdfs:label "rostral presomitic mesoderm" ;
rdfs:comment "The region of presomitic mesoderm that lays immediately adjacent and posterior to the last formed somite." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004106 a rdfs:Class ;
rdfs:label "regenerating forelimb" ;
rdfs:comment "A portion of forelimb tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004311 .
obo:XAO_0000234 a rdfs:Class ;
rdfs:label "germinal vesicle" ;
rdfs:comment "The nucleus of the oocyte, it is enclosed in a nuclear envelope and contains neucleoplasm, in which the chromosomes and extranucleoli are embedded. It breaks down as the oocyte matures, being no longer visible by the first meiotic metaphase." ;
rdfs:subClassOf obo:XAO_0005038 .
obo:XAO_0000439 a rdfs:Class ;
rdfs:label "filter chamber" ;
rdfs:comment "The structure that enables tadpoles, which are suspension feeders, to trap food particles. The palatoquadrate, ceratohyal and the connecting muscles are responsible for the irrigation and ventilation of the filter apparatus." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0003269 a rdfs:Class ;
rdfs:label "jaw muscle" ;
rdfs:comment "Type of muscle that arises in the zygomatic arch and closes the jaw." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0003026 a rdfs:Class ;
rdfs:label "tail" ;
rdfs:comment "Organism subdivision that is the terminal, flexible posterior appendage of the larva. It is resorbed during metamorphosis beginning with degeneration of the notochord's distal tip at NF stage 61, followed by degeneration gradually extending to its more proximal regions and reaching its proximal end by NF stage 62. By NF stage 66 it exists only as a small dorsal swelling." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0000410 a rdfs:Class ;
rdfs:label "trunk somite 5" ;
rdfs:comment "The 3rd somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0005138 a rdfs:Class ;
rdfs:label "subcortical cytoplasm" ;
rdfs:comment "The cytoplasm beneath the outer layers of the oocyte." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003128 a rdfs:Class ;
rdfs:label "myotome of trunk somite 10" ;
rdfs:comment "Compartment of trunk somite 10 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0000154 a rdfs:Class ;
rdfs:label "bladder" ;
rdfs:comment "The organ that collects urine excreted by the kidneys before disposal by urination." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003165 .
obo:XAO_0003193 a rdfs:Class ;
rdfs:label "cardiac ventricle" ;
rdfs:comment "Cardiac chamber that consists of a wall that surrounds the cavity of a ventricle. The amphibian heart has a single ventricle and an outflow tract with an incomplete spiral septum." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0004487 a rdfs:Class ;
rdfs:label "epiphysis" ;
rdfs:comment "Organ part consisting of the rounded end of a long bone (at its joint with adjacent bone), which in Xenopus are the tibia-fibula and femur of the hindlimb, and the radio-ulna and humerus of the forelimb." ;
rdfs:subClassOf obo:XAO_0004486 .
obo:XAO_0005506 a rdfs:Class ;
rdfs:label "cerebrospinal fluid" ;
rdfs:comment "A clear, colorless bodily fluid that occupies the subarachnoid space and the ventricular system around and inside the brain and spinal cord." ;
rdfs:subClassOf obo:XAO_0004001 .
obo:XAO_0004278 a rdfs:Class ;
rdfs:label "coracoid bone" ;
rdfs:comment "Paired bone that is part of the shoulder assembly, joining the scapula to the front end of the sternum." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0000051 a rdfs:Class ;
rdfs:label "dorsal aorta" ;
rdfs:comment "Principal unpaired, median artery of the trunk, extending into the tail as the caudal artery." ;
rdfs:subClassOf obo:XAO_0003010 .
obo:XAO_0004233 a rdfs:Class ;
rdfs:label "truncus arteriosus" ;
rdfs:comment "A cranial continuation of the bulbis cordis that contains two lateral branches and divides into the carotid arch, systemic arch, and pulmocutaneous arch." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0004192 a rdfs:Class ;
rdfs:label "sacral neural crest" ;
rdfs:comment "One of the 5 distinct and partially overlapping functional domains of the premigratory neural crest. Together with the vagal neural crest cells, they develop into the ganglia of the enteric nervous system, also known as the parasympathetic ganglia. Sacral crest cells are associated with extrinsic nerve fibers of the hindgut and colon." ;
rdfs:subClassOf obo:XAO_0005327 .
obo:XAO_0003169 a rdfs:Class ;
rdfs:label "dermatocranium" ;
rdfs:comment "Subdivision of skeleton that includes all dermal bones in the cranial skeleton." ;
rdfs:subClassOf obo:XAO_0003075 .
obo:XAO_0003056 a rdfs:Class ;
rdfs:label "anterior" ;
rdfs:comment "Spatial concept denoting the front surface of the body; often used to indicate the position of one structure relative to another." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0004549 a rdfs:Class ;
rdfs:label "dorsal septum" ;
rdfs:comment "A set of septal nuclei comprising the dorsal aspect of the forebrain septum." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0005162 a rdfs:Class ;
rdfs:label "mandibular arch skeleton" ;
rdfs:comment "Skeletal subdivision comprising the skeletal elements of the mandibular arch." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0005279 a rdfs:Class ;
rdfs:label "obsolete right part of brain" .
obo:XAO_0004454 a rdfs:Class ;
rdfs:label "m. obliquus superior primordium" ;
rdfs:comment "The presumptive cells of the obliquus superior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000374 a rdfs:Class ;
rdfs:label "dorsal lymph space" ;
rdfs:comment "Large subdermal lymph-containing space located dorsally near the last vertebrae." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0004534 a rdfs:Class ;
rdfs:label "anterior entopeduncular nucleus" ;
rdfs:comment "Nucleus situated in the pallidum that provides auditory input to the torus semicircularis." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004021 a rdfs:Class ;
rdfs:label "cell condensation" ;
rdfs:comment "Anatomical structure that is an aggregation of similar cells from which cartilages and bones form, and from which chondrogenesis and osteogenesis are initiated during repair and/or regeneration." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0000099 a rdfs:Class ;
rdfs:label "branchial arch" ;
rdfs:comment "Structures that develop from the pharyngeal arches. Pharyngeal arches are anlage for a multitude of structures. Each pharyngeal arch has a cartilaginous stick, a muscle component which differentiates from the cartilaginous tissue, an artery, and a cranial nerve. Each of these is surrounded by mesenchyme. Arches do not develop simultaneously, but instead possess a staggered development." ;
rdfs:subClassOf obo:XAO_0000096 .
obo:XAO_0000302 a rdfs:Class ;
rdfs:label "dorso-lateral" ;
rdfs:comment "Spatial concept pertaining to the back of the body and to the side." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0003037 a rdfs:Class ;
rdfs:label "multi-tissue structure" ;
rdfs:comment "Anatomical structure that has as its parts two or more portions of tissue of at least two different types and which through specific morphogenetic processes forms a single distinct structural unit demarcated by bona-fide boundaries from other distinct structural units of different types." ;
rdfs:subClassOf obo:XAO_0005002 .
obo:XAO_0004054 a rdfs:Class ;
rdfs:label "vacuolated notochordal tissue" ;
rdfs:comment "Connective tissue that is matrix-poor with large number of vacuolated cells." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0005173 a rdfs:Class ;
rdfs:label "right blastomere" ;
rdfs:comment "The blastomere of the future right side of the embryo at the 2-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0004014 a rdfs:Class ;
rdfs:label "membrane bone" ;
rdfs:comment "Bone element that arises as a result of intramembranous ossification." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_1000067 a rdfs:Class ;
rdfs:label "NF stage 55" ;
rdfs:comment "Nieuwkoop and Faber stage 55, corresponding to a tadpole of age about 32 days at 22-24 Celsius and having the following external morphological criteria: Hand pronated about 90 degrees; free parts of fingers about equally long as broad. Length of hindlimb without foot about 3 times its breadth; length of cartilages of 4th and 5th toe about 4 times their breadth. Length: 70 - 80 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0005268 a rdfs:Class ;
rdfs:label "adult thrombocyte" ;
rdfs:comment "A cell type that produces platelets and coagulating factors that react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot; and that, in adults, develop from hematopoietic stem cells." ;
rdfs:subClassOf obo:XAO_0005266 .
obo:XAO_0004406 a rdfs:Class ;
rdfs:label "presumptive axial mesoderm" ;
rdfs:comment "Presumptive structure that will develop into axial mesoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004070 a rdfs:Class ;
rdfs:label "hypothalamus" ;
rdfs:comment "Multi-tissue structure that is part of the diencephalon ventral to the thalamus consisting of connecting fibers and is a center for control of the autonomous nervous system." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003063 a rdfs:Class ;
rdfs:label "pectoral girdle" ;
rdfs:comment "Arched skeletal structure that supports the forelimbs, the rudiments of which can be distinguished in mesenchyme at NF stage 51, and is complete by NF stage 60." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0000313 a rdfs:Class ;
rdfs:label "head somite" ;
rdfs:comment "Any of the transient, degenerating somites that form in the occipital region of the animal." ;
rdfs:subClassOf obo:XAO_0000058 .
obo:XAO_0000381 a rdfs:Class ;
rdfs:label "mesonephric sinus" ;
rdfs:comment "Sinus that surrounds the mesonephric tubules and puts lateral and medial postcardinal veins into communication with each other." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000424 a rdfs:Class ;
rdfs:label "tail somite 16" ;
rdfs:comment "The 14th somite located posterior to the head. This somite forms at NF stage 28, by which time head somite 1 has degenerated, and it is resorbed at metamorphosis." ;
rdfs:subClassOf obo:XAO_0003143 .
obo:XAO_0005220 a rdfs:Class ;
rdfs:label "medial region" ;
rdfs:comment "Anatomical region medially located on the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003154 a rdfs:Class ;
rdfs:label "adult immune system" ;
rdfs:comment "The complete system of biological structures and processes within the adult organism that protects against disease by identifying and killing pathogens and tumor cells." ;
rdfs:subClassOf obo:XAO_0003152 .
obo:XAO_0000037 a rdfs:Class ;
rdfs:label "animal cap inner layer" ;
rdfs:comment "Sensorial layer of blastocoel roof ectoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005107 a rdfs:Class ;
rdfs:label "blastomere V1.2.2" ;
rdfs:comment "Blastomere which lies lateral to blastomere V1.1.2, posterior to its sister cell, blastomere V1.2.1, in the second tier of blastomeres. It contributes to the epidermis, fins, cranial ganglia, otic vesicle, central nervous system, neural crest, and somites, with occasional cells in the pharyngeal mesoderm, head mesenchyme, hindgut, and proctodeum." ;
rdfs:subClassOf obo:XAO_0005115 .
obo:XAO_0003109 a rdfs:Class ;
rdfs:label "myotome of trunk somite 2" ;
rdfs:comment "Compartment of trunk somite 2 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_1000029 a rdfs:Class ;
rdfs:label "NF stage 6.5" ;
rdfs:comment "Nieuwkoop and Faber stage 6.5, corresponding to an embryo of age 3 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Morula stage. About 48 blastomeres. In animal view about 6 micromeres along meridian. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004555 a rdfs:Class ;
rdfs:label "granule cell layer of the olfactory bulb" ;
rdfs:comment "A layer of the olfactory bulb interior to the mitral cell layer, consisting of inhibitory interneurons." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004325 a rdfs:Class ;
rdfs:label "branchial head muscle" ;
rdfs:comment "Any of the muscles that support the filigreed structure of the gill basket necessary for filter feeding, through the stabilisation, extension and compression of the gill basket." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0000282 a rdfs:Class ;
rdfs:label "visceral pouch" ;
rdfs:comment "Pharyngeal (endodermal) evaginations between the visceral arches from which the Eustachian tube is derived; pouches 2-4 open as gill slits." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_1000056 a rdfs:Class ;
rdfs:label "NF stage 44" ;
rdfs:comment "Nieuwkoop and Faber stage 44, corresponding to an embryo of age 3 days, 20 hr at 22-24 Celsius and having the following external morphological criteria: Appearance of tentacle rudiments. Opercular folds protruding further. Coiling part of intestine showing S-shaped loop; torsion about 360 degrees. Blood-circulation in gills usually ceased (gills smaller). Length: 7.8 - 8.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004566 a rdfs:Class ;
rdfs:label "locus coeruleus" ;
rdfs:comment "Nucleus within the brainstem that is the principal site for brain synthesis of norepinephrine." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0005077 a rdfs:Class ;
rdfs:label "secondary myofiber" ;
rdfs:comment "Multinucleate cell formed by later myoblasts that cling by pseudopodia pushed into the surfaces of existing myotubes, and that instead of fusing with the myotube fuse with each other." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005231 a rdfs:Class ;
rdfs:label "cloacal sphincter" ;
rdfs:comment "The developing muscle surrounding the caudal end of the cloaca." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003139 a rdfs:Class ;
rdfs:label "sclerotome of tail somite 16" ;
rdfs:comment "Compartment of tail somite 16 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004606 a rdfs:Class ;
rdfs:label "tuberal region" ;
rdfs:comment "Structure that lies rostral to the area of the tegmentum and that is a site of dopamine-containing cells." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004244 a rdfs:Class ;
rdfs:label "mandibular artery" ;
rdfs:comment "Part of the lateral pretrosal artery that supplies blood to the roof of the mouth." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0000290 a rdfs:Class ;
rdfs:label "obsolete pronephric nephron segment S1" .
obo:XAO_0000320 a rdfs:Class ;
rdfs:label "sensorial layer" ;
rdfs:comment "The inner layer of ectoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003004 a rdfs:Class ;
rdfs:label "whole organism" ;
rdfs:comment "Anatomical structure that is an individual member of Xenopus laevis." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0003074 a rdfs:Class ;
rdfs:label "vertebral column" ;
rdfs:comment "Anatomical cluster that consists of all the vertebrae in the body." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0004460 a rdfs:Class ;
rdfs:label "choroid" ;
rdfs:comment "Portion of tissue comprising the vascular layer of the eye, containing connective tissue and lying between the retina and the sclera. It provides oxygen and nourishment to the outer layers of the retina. Along with the ciliary body and iris, it forms the uveal tract." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005246 a rdfs:Class ;
rdfs:label "migratory trunk neural crest cell" ;
rdfs:comment "Migratory neural crest cell that is part of the trunk neural crest." ;
rdfs:subClassOf obo:XAO_0004069 .
obo:XAO_0004426 a rdfs:Class ;
rdfs:label "m. levator mandibulae longus profundus primordium" ;
rdfs:comment "The presumptive cells of the levator mandibulae longus profundus muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0005212 a rdfs:Class ;
rdfs:label "proximal-distal axis" ;
rdfs:comment "An axis that extends from the point of attachment of a structure (proximal) to the point furthest away from the plane of attachment (distal)." ;
rdfs:subClassOf obo:XAO_0005200 .
obo:XAO_0000088 a rdfs:Class ;
rdfs:label "upper blastopore lip" ;
rdfs:comment "Dorsal part of the blastopore lip, which forms as a result of the contraction of bottle cells." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004476 a rdfs:Class ;
rdfs:label "skeletal myocyte" ;
rdfs:comment "A myocyte of the skeletal muscle." ;
rdfs:subClassOf obo:XAO_0004475 .
obo:XAO_0005324 a rdfs:Class ;
rdfs:label "anterior lateral line ganglion" ;
rdfs:comment "Ganglion that develops from a cranial ectodermal placode and contains sensory neurons that innervate the anterior lateral line system." ;
rdfs:subClassOf obo:XAO_0004457 .
obo:XAO_0005151 a rdfs:Class ;
rdfs:label "m. petrohyoideus" ;
rdfs:comment "A long, strap-like muscle that originates mainly from the parotic crest, passes over the stapes and ultimately inserts on the ventral surface of the larynx." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0000041 a rdfs:Class ;
rdfs:label "epidermis inner layer" ;
rdfs:comment "A distinct layer of the epidermal cells beneath the outermost layer of epidermis, the multilayered epithelium derived from the ectoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000005 a rdfs:Class ;
rdfs:label "gastrula stage" ;
rdfs:comment "Embryonic stage during which gastrulation takes place, with a proportion of cells migrating below the surface of the embryo to form two inner layers (endoderm and mesoderm) and the cells which remain outside spreading over the whole surface of the embryo to form the ectoderm; comprising Nieuwkoop and Faber stages 10 to 12.5." ;
rdfs:subClassOf obo:XAO_1000012 .
obo:XAO_0004047 a rdfs:Class ;
rdfs:label "oropharyngeal papilla" ;
rdfs:comment "Odontogenic papilla located along the jaws or pharyngeal skeleton." ;
rdfs:subClassOf obo:XAO_0004045 .
obo:XAO_0005066 a rdfs:Class ;
rdfs:label "optic disc" ;
rdfs:comment "The location where ganglion cell axons exit the eye to form the optic nerve." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000454 a rdfs:Class ;
rdfs:label "liver parenchyme" ;
rdfs:comment "The functional units of the liver including the lobules." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005201 a rdfs:Class ;
rdfs:label "animal-vegetal axis" ;
rdfs:comment "An axis that extends from the animal end of an egg or early embryo to the opposite, vegetal end." ;
rdfs:subClassOf obo:XAO_0005200 .
obo:XAO_0005088 a rdfs:Class ;
rdfs:label "blastomere D1.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline of the animal hemisphere at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005113 .
obo:XAO_0004144 a rdfs:Class ;
rdfs:label "anterior ventral blood island" ;
rdfs:comment "Region that is overlapping, anterior, and dorsal to the main body of the ventral blood island." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004419 a rdfs:Class ;
rdfs:label "claw of hindlimb digit 3" ;
rdfs:comment "Claw located at the end of the 3rd hindlimb digit." ;
rdfs:subClassOf obo:XAO_0003103 .
obo:XAO_0000362 a rdfs:Class ;
rdfs:label "coeliaco-mesenteric artery" ;
rdfs:comment "Artery consisting of many branches which supply blood to various organs in the viscus. One of the major blood vessels, branching off the dorsal aorta and supplying the embryonic foregut organs: liver, stomach, intestine, spleen and pancreas." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0005281 a rdfs:Class ;
rdfs:label "dorso-lateral region" ;
rdfs:comment "Anatomical region that overlaps the dorsal and lateral regions of a body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004060 a rdfs:Class ;
rdfs:label "blastema" ;
rdfs:comment "A regenerating tissue composed of a proliferative mass of undifferentiated progenitor cells from which new differentiated structures arise." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0003045 a rdfs:Class ;
rdfs:label "epithelium" ;
rdfs:comment "Portion of tissue that consists of one or more layers of epithelial cells connected to each other by cell junctions and that is underlain by a basal lamina." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003247 a rdfs:Class ;
rdfs:label "endocrine cell" ;
rdfs:comment "A cell of an endocrine gland, ductless glands that secrete substances which are released directly into the circulation and which influence metabolism and other body functions." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000465 a rdfs:Class ;
rdfs:label "caudal lateral line" ;
rdfs:comment "Cranial nerve of the caudal lateral line that enters the brain between cranial nerves VIII and IX; contains afferents and sensory efferents to the posterior lateral line ganglion and middle ganglion. Fibers from the posterior lateral line ganglion innervate the occipital dorsal lateral line and trunk lateral lines." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0005292 a rdfs:Class ;
rdfs:label "nasociliary nerve" ;
rdfs:comment "Cephalic nerve that innervates the nasal cavity and the eye." ;
rdfs:subClassOf obo:XAO_0005309 .
obo:XAO_0000392 a rdfs:Class ;
rdfs:label "hepatic portal vein" ;
rdfs:comment "Vein that starts in capillaries of the alimentary canal and ends in capillaries of the liver." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004502 a rdfs:Class ;
rdfs:label "mitotic cell" ;
rdfs:comment "A cell that is in the process of replication, and is idenitifable by chromosomal replication." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004284 a rdfs:Class ;
rdfs:label "pectoral appendage" ;
rdfs:comment "Appendage that is one of the anterior paired appendages (i.e. the forelimbs)." ;
rdfs:subClassOf obo:XAO_0004283 .
obo:XAO_0003258 a rdfs:Class ;
rdfs:label "neuromast mantle cell" ;
rdfs:comment "A non-sensory cell type surrounding the neuromast support cells and neuromast hair cells, separating the neuromast from the epidermis, and secreting cupula in which the ciliary bundles of all the hair cells are embedded." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003143 a rdfs:Class ;
rdfs:label "tail somite" ;
rdfs:comment "Any of the somites that form posterior to the trunk and are resorbed at metamorphosis." ;
rdfs:subClassOf obo:XAO_0000058 .
obo:XAO_0000395 a rdfs:Class ;
rdfs:label "medial abdominal vein" ;
rdfs:comment "Vein in the posterior region that drains the ventral abdominal wall." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000026 a rdfs:Class ;
rdfs:label "branchial crest" ;
rdfs:comment "The most posterior segments of the population of migratory cells of the cranial neural crest, contributing to the branchial arches 3 and 4. Branchial crest cells migrate in two distinct streams referred to as the anterior and posterior branchial crest." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000070 a rdfs:Class ;
rdfs:label "ventro-lateral marginal zone" ;
rdfs:comment "Region of the marginal zone extending from the ventral to lateral surface." ;
rdfs:subClassOf obo:XAO_0000068 .
obo:XAO_1000065 a rdfs:Class ;
rdfs:label "NF stage 53" ;
rdfs:comment "Nieuwkoop and Faber stage 53, corresponding to a tadpole of age about 24 days at 22-24 Celsius and having the following external morphological criteria: Fore- and hindlimbs in paddle stage. Hindlimb whithout foot somewhat longer than broad; 4th and 5th toe indicated. Length: 50 - 60 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000262 a rdfs:Class ;
rdfs:label "polar body" ;
rdfs:comment "A small cell formed by the meiotic division of an oocyte." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004036 a rdfs:Class ;
rdfs:label "mineralized avascular GAG-rich matrix" ;
rdfs:comment "Avascular GAG-rich matrix that is mineralized." ;
rdfs:subClassOf obo:XAO_0004033 , obo:XAO_0004034 .
obo:XAO_0004545 a rdfs:Class ;
rdfs:label "dorsal column nucleus" ;
rdfs:comment "A nucleus that is situated in the brainstem." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0000007 a rdfs:Class ;
rdfs:label "lower eyelid" ;
rdfs:comment "A surface structure consisting of a set of membranes that cover and protect the eye." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0006053 a rdfs:Class ;
rdfs:label "glomerular cluster" ;
rdfs:comment "A cluster of lobe-like projections of glomeruli within the glomerular layer of the ofactory bulb, each cluster being referred to by their directionality (e.g. medial vs. lateral, and/or relative size, e.g. small vs. intermediate). Olfactory receptor neuron axons (ORNs, yellow) incoming from the olfactory nerve (ON) form distinct medial (MC), intermediate (IC), and lateral (LC) clusters in the glomerular layer." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005224 a rdfs:Class ;
rdfs:label "postero-ventral region" ;
rdfs:comment "Anatomical region that overlaps the posterior and ventral regions of a body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_1000032 a rdfs:Class ;
rdfs:label "NF stage 11.5" ;
rdfs:comment "Nieuwkoop and Faber stage 11.5, corresponding to an embryo of age 12 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Large yolk plug stage. Blastopore groove closed ventrally; yolk plug not yet quite circular. At ventral side concentrated superficial pigment still visible. Diameter of yolk plug about a third of diameter of egg (plus or minus 40 degrees). Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004172 a rdfs:Class ;
rdfs:label "subintestinal vein" ;
rdfs:comment "Vein that is formed from and drains into the left omphalomesentric vein, and by NF stage 40, it is on the left side of the gut. It moves to the most ventral aspect of the gut during stage 41, and is on the right side of the gut by stage 43." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000370 a rdfs:Class ;
rdfs:label "arteria mesenterica posterior" ;
rdfs:comment "The artery that supplies the network of blood vessels (the mesentry) to the large intestine." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004498 a rdfs:Class ;
rdfs:label "pubis" ;
rdfs:comment "The ventral and anterior of the three principal bones composing the pelvic girdle. The pubes fuse with the ilia at NF stage 53, and touch each other at NF stage 62. Full contact of the medial surfaces occurs at NF stage 63 when ossification also begins. Ossification continues through metamorphosis." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0006028 a rdfs:Class ;
rdfs:label "common monocyte/macrophage precursor" ;
rdfs:comment "A progenitor cell that is part of the immune system and develops into a macrophage." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004010 a rdfs:Class ;
rdfs:label "simple squamous epithelium" ;
rdfs:comment "Unilaminar epithelium that consists of a single layer of squamous cells." ;
rdfs:subClassOf obo:XAO_0004007 .
obo:XAO_0005305 a rdfs:Class ;
rdfs:label "ventral endomesoderm" ;
rdfs:comment "Ventral region of early embryonic endomesoderm." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0005167 a rdfs:Class ;
rdfs:label "epsilon cell" ;
rdfs:comment "A type of endocrine cell that is found in the islets of Langerhans and produces the hormone ghrelin." ;
rdfs:subClassOf obo:XAO_0005135 .
obo:XAO_0004319 a rdfs:Class ;
rdfs:label "amputated limb" ;
rdfs:comment "A portion of limb tissue that has been removed from the body." ;
rdfs:subClassOf obo:XAO_0004317 .
obo:XAO_0000306 a rdfs:Class ;
rdfs:label "floor plate" ;
rdfs:comment "Organizing center consisting of a small group of cells located at the ventral midline of the neural tube that influences the development of the nervous system, governing the specification of neuronal cell types and directing axonal trajectories." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003244 a rdfs:Class ;
rdfs:label "gastrula cell" ;
rdfs:comment "A cell of the embryo in the early stage following the blastula, characterized by morphogenetic cell movements, cell differentiation, and the formation of the three germ layers." ;
rdfs:subClassOf obo:XAO_0003241 .
obo:XAO_0005270 a rdfs:Class ;
rdfs:label "obsolete left part of branchial arch skeleton" .
obo:XAO_0004396 a rdfs:Class ;
rdfs:label "apical mesenchyme" ;
rdfs:comment "Regenerating tissue consisting of mesenchyme cells at the tip of the regenerating limb." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0005004 a rdfs:Class ;
rdfs:label "adult intestinal epithelium" ;
rdfs:comment "Epithelium that covers the small and large intestine in the adult frog." ;
rdfs:subClassOf obo:XAO_0003200 , obo:XAO_0004008 .
obo:XAO_0004369 a rdfs:Class ;
rdfs:label "processus anterior hyalis" ;
rdfs:comment "Cartilaginous element comprising the anterior process of ceratohyal cartilage derived from the hyoid neural crest stream." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004356 a rdfs:Class ;
rdfs:label "m. obliquus inferior" ;
rdfs:comment "Thin, narrow muscle placed near the anterior margin of the floor of the orbit." ;
rdfs:subClassOf obo:XAO_0004327 .
obo:XAO_0003051 a rdfs:Class ;
rdfs:label "anterior dorsal lateral plate region" ;
rdfs:comment "Region located near the pronephros and pronephric ducts that is a site of hematopoiesis in the embryo." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004289 a rdfs:Class ;
rdfs:label "skeletal subdivision" ;
rdfs:comment "Anatomical cluster consisting of the skeletal elements that are part of the skeleton." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000368 a rdfs:Class ;
rdfs:label "ophthalmic artery" ;
rdfs:comment "A branch of the internal carotid artery that delivers blood to the eye. Together with the opthalmic vein, it forms a double ring encircling the eye and retina. It enters the eye obliquely by crossing over the ophthalmic vein and the internal jugular vein." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0001011 a rdfs:Class ;
rdfs:label "blood vessel" ;
rdfs:comment "Any of the vessels through which blood circulates in the body." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005196 a rdfs:Class ;
rdfs:label "neutrophil" ;
rdfs:comment "A type of blood cell which is part of the innate immune system and is quickly recruited to sites of injury." ;
rdfs:subClassOf obo:XAO_0003239 , obo:XAO_0006044 .
obo:XAO_0005015 a rdfs:Class ;
rdfs:label "axon" ;
rdfs:comment "The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter." ;
rdfs:subClassOf obo:XAO_0005317 .
obo:XAO_0003052 a rdfs:Class ;
rdfs:label "oviduct" ;
rdfs:comment "A simple ciliated tube through which the ovum travels from the ovaries to the cloaca and the external environment. It is lined with mucus-secreting glands that produce the jelly that surrounds the ovum." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_1000095 a rdfs:Class ;
rdfs:label "post-embryonic stage" ;
rdfs:comment "Xenopus developmental stage that succeeds the embryonic stage." ;
rdfs:subClassOf obo:XAO_1000000 .
obo:XAO_0004116 a rdfs:Class ;
rdfs:label "stage III oocyte" ;
rdfs:comment "A developing female gamete that is at the mid-vitellogenic stage." ;
rdfs:subClassOf obo:XAO_0000256 .
obo:XAO_0005050 a rdfs:Class ;
rdfs:label "parabrachial area" ;
rdfs:comment "Cell area that receives signals from the solitary nucleus and transmits signals to the medulla oblongata, spinal cord, amygdala, and hypothalamus." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004196 a rdfs:Class ;
rdfs:label "cementum" ;
rdfs:comment "Odontoid tissue that is deposited by cementoblasts onto dentine tissue and functions to attach teeth, odontodes and other odontogenic derivatives to bone tissue and the integument." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_0004077 a rdfs:Class ;
rdfs:label "intersomitic epithelium" ;
rdfs:comment "Epithelium located in the intersomitic region." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0004440 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium IV primordium" ;
rdfs:comment "The presumptive cells of the levator arcuum branchialium IV muscles." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0003160 a rdfs:Class ;
rdfs:label "anatomical cluster" ;
rdfs:comment "Anatomical group that has its parts adjacent to one another." ;
rdfs:subClassOf obo:XAO_0003001 .
obo:XAO_0000417 a rdfs:Class ;
rdfs:label "trunk somite 9" ;
rdfs:comment "The 7th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_1000090 a rdfs:Class ;
rdfs:label "prometamorphosis stage" ;
rdfs:comment "Metamorphosing tadpole stage during which toe differentiation and rapid hindlimb growth continue, comprising Nieuwkoop and Faber stages 55 to 57." ;
rdfs:subClassOf obo:XAO_1000079 .
obo:XAO_1000043 a rdfs:Class ;
rdfs:label "NF stage 27" ;
rdfs:comment "Nieuwkoop and Faber stage 27, corresponding to an embryo of age 1 day, 7 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Lateral flattening of eyes. Fin transluscent, except for region behind anus. Tail bud formation accentuated in lateral outline. Length: 3.4 - 3.7 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004159 a rdfs:Class ;
rdfs:label "posterior cerebral vein" ;
rdfs:comment "Vein that drains the dorsal longitudinal vessel and the caudal portions of the venous capillary network of the medulla oblongata. The cerebral veins cross the head dorsally at NF stage 37-38. It drains into the vena capitis lateralis." ;
rdfs:subClassOf obo:XAO_0004160 .
obo:XAO_0000273 a rdfs:Class ;
rdfs:label "olfactory organ" ;
rdfs:comment "Organ comprising the specialized structures subserving the function of the sense of smell." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0005302 a rdfs:Class ;
rdfs:label "posterior endoderm" ;
rdfs:comment "Posterior region of the developing endoderm." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004530 a rdfs:Class ;
rdfs:label "accessory olfactory bulb" ;
rdfs:comment "The forebrain region that coordinates sensory signaling arising from the vomeronasal organ; it is located on the dorsal-posterior portion of the main olfactory bulb, and the axons that leave the accessory olfactory bulb project to targets in the amygdala and hypothalamus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004451 a rdfs:Class ;
rdfs:label "m. rectus inferior primordium" ;
rdfs:comment "The presumptive cells of the rectus inferior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004221 a rdfs:Class ;
rdfs:label "anterior lateral line placode" ;
rdfs:comment "Lateral line placode that gives rise to the anterior lateral line nerve." ;
rdfs:subClassOf obo:XAO_0000440 .
obo:XAO_0000110 a rdfs:Class ;
rdfs:label "glomeral mesenchyme" ;
rdfs:comment "Portion of tissue that consists of the precursors of the pronephric glomus or glomerulus; derived from the medial portion of the pronephric intermediate mesoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000104 a rdfs:Class ;
rdfs:label "hindgut" ;
rdfs:comment "Posterior subdivision of the digestive tract. The posterior part of the alimentary canal, including the large intestine and cloaca." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004261 a rdfs:Class ;
rdfs:label "pharyngeal region" ;
rdfs:comment "Region encompassing the oral end of the alimentary canal." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000096 a rdfs:Class ;
rdfs:label "pharyngeal arch" ;
rdfs:comment "One of a series of bony or cartilaginous arches that develop in the walls of the mouth cavity and pharynx of the embryo." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005189 a rdfs:Class ;
rdfs:label "pars nervosa" ;
rdfs:comment "Structure which constitutes the majority of the posterior pituitary (neurohypophysis) and that is the storage site of oxytocin and vasopressin." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005208 a rdfs:Class ;
rdfs:label "dorsal side" ;
rdfs:comment "An anatomical region that is the entire part of an anatomical structure dorsal to a horizontal plane and bounded on one side by the same horizontal plane." ;
rdfs:subClassOf obo:XAO_0005205 .
obo:XAO_0000385 a rdfs:Class ;
rdfs:label "pronephric sinus" ;
rdfs:comment "A system of vessels that initially swell from where the anterior and posterior cardinal veins meet before draining into the heart via the duct of Cuvier at NF stage 33 and 34, and then continue to narrow and fold into a characteristic S-shape by NF stage 37 and 38. It continues to loop on itself, at first a loose, then a dense knot of many vessels by NF stage 45." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0005235 a rdfs:Class ;
rdfs:label "dorsal telencephalon" ;
rdfs:comment "The dorsal part of the telencephalon." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000020 a rdfs:Class ;
rdfs:label "spinal cord" ;
rdfs:comment "Long, thin, tubular structure made up of nervous tissue that extends from the brainstem to the lumbar region of the vertebral column, and from which the spinal nerves emerge." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0005118 a rdfs:Class ;
rdfs:label "ooplasm" ;
rdfs:comment "The cytoplasm of the oocyte." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000460 a rdfs:Class ;
rdfs:label "hyomandibular lateral line" ;
rdfs:comment "Lateral line complex that radiates on the ventral side of the head from a point between the eye and the base of the larval tentacle." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0006012 a rdfs:Class ;
rdfs:label "iridoblast" ;
rdfs:comment "A non-terminally differentiated cell which originates from the neural crest and differentiates into an iridophore." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003067 a rdfs:Class ;
rdfs:label "obsolete fore epipodium" .
obo:XAO_0005313 a rdfs:Class ;
rdfs:label "actin cytoskeleton" ;
rdfs:comment "The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004314 a rdfs:Class ;
rdfs:label "digit-joint region" ;
rdfs:comment "A joint region within a digit, one of several most distal parts of a limb." ;
rdfs:subClassOf obo:XAO_0004313 .
obo:XAO_0004008 a rdfs:Class ;
rdfs:label "simple columnar epithelium" ;
rdfs:comment "Unilaminar epithelium that consists of a single layer of columnar cells." ;
rdfs:subClassOf obo:XAO_0004007 .
obo:XAO_0005033 a rdfs:Class ;
rdfs:label "progenitor cell" ;
rdfs:comment "A cell that, like a stem cell, has a tendency to differentiate into a specific type of cell, but is already more specific than a stem cell and is pushed to differentiate into its target cell." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0006044 a rdfs:Class ;
rdfs:label "granulocyte" ;
rdfs:comment "A leukocyte with abundant cytoplasmic granules." ;
rdfs:subClassOf obo:XAO_0004148 .
obo:XAO_0004432 a rdfs:Class ;
rdfs:label "m. orbitohyoideus primordium" ;
rdfs:comment "The presumptive cells of the orbitohyoideus muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0005099 a rdfs:Class ;
rdfs:label "blastomere D1.2.2" ;
rdfs:comment "Blastomere which lies lateral to blastomere D1.1.2, posterior to its sister cell, blastomere D1.2.1, in the second tier of blastomeres. It contributes to a variety of tissues and organs including fin, epidermis, cement gland, olfactory epithelium, neural crest, lens, cranial ganglia, retina, brain, notochord, somites, pronephric kidney, lateral plate mesoderm, pharynx, foregut, hindgut and archenteron roof." ;
rdfs:subClassOf obo:XAO_0005113 .
obo:XAO_0000396 a rdfs:Class ;
rdfs:label "head somite 1" ;
rdfs:comment "Transient occipital somite that exists from NF stages 17 to 26 only." ;
rdfs:subClassOf obo:XAO_0000313 .
obo:XAO_0004188 a rdfs:Class ;
rdfs:label "posterior branchial crest" ;
rdfs:comment "Branchial crest that is the most posterior of the five neural crest streams." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005105 a rdfs:Class ;
rdfs:label "blastomere V1.1.2" ;
rdfs:comment "Blastomere which lies adjacent to the prospective ventral midline, posterior to its sister cell, blastomere V1.1.1, in the second tier of blastomeres. It contributes to trunk epidermis and neural crest cells, Rohon-Beard neurons, somites, the pronephric kidney, lateral plate mesoderm, tail fin mesenchyme, hindgut and proctodeum." ;
rdfs:subClassOf obo:XAO_0005115 .
obo:XAO_0000309 a rdfs:Class ;
rdfs:label "marginal zone (sensu neural)" ;
rdfs:comment "Region of the neural tube that will become the white matter of the nervous system." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003015 a rdfs:Class ;
rdfs:label "myoblast" ;
rdfs:comment "Embryonic (precursor) cell of the myogenic lineage that develops from the mesoderm." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004462 a rdfs:Class ;
rdfs:label "dorsal endoderm" ;
rdfs:comment "Single cell layer of involuted endoderm lying beneath the prechordal plate." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005219 a rdfs:Class ;
rdfs:label "ventral region" ;
rdfs:comment "Anatomical region ventrally located on the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004133 a rdfs:Class ;
rdfs:label "posterior crista" ;
rdfs:comment "Posterior patch of cristae/sensory epithelia cells of the inner ear." ;
rdfs:subClassOf obo:XAO_0004138 .
obo:XAO_0006001 a rdfs:Class ;
rdfs:label "lateral plate mesoderm, left side" ;
rdfs:comment "Lateral plate mesoderm that is located on the left side of the body." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0003041 a rdfs:Class ;
rdfs:label "compound organ" ;
rdfs:comment "Anatomical structure that has as its parts two or more multi-tissue structures of at least two different types and which through specific morphogenetic processes forms a single distinct structural unit demarcated by bona fide boundaries from other distinct anatomical structures of different types." ;
rdfs:subClassOf obo:XAO_0005002 .
obo:XAO_0000251 a rdfs:Class ;
rdfs:label "visceral pouch 3" ;
rdfs:comment "Third of the pharyngeal (endodermal) evaginations between the visceral arches from which the Eustachian tube is derived; pouches 2-4 open as gill slits." ;
rdfs:subClassOf obo:XAO_0000282 .
obo:XAO_0000132 a rdfs:Class ;
rdfs:label "liver and biliary system" ;
rdfs:comment "Anatomical system comprising the liver, gall bladder, and associated ducts." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0000406 a rdfs:Class ;
rdfs:label "trunk somite 1" ;
rdfs:comment "Trunk somite that is initially the fifth somite, first forming around NF stage 19 and becoming more anteriorly positioned as the head somites degenerate. It is the most anterior somite by NF stage 45 and is adjacent to the otic vesicle." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0004127 a rdfs:Class ;
rdfs:label "m. geniohyoideus" ;
rdfs:comment "Muscle that pulls the hyoid apparatus forward and depresses the lower jaw." ;
rdfs:subClassOf obo:XAO_0004326 .
obo:XAO_0004307 a rdfs:Class ;
rdfs:label "head mesenchyme" ;
rdfs:comment "Mesoderm that will give rise, along with cranial neural crest cells, to connective tissue, bone and musculature in the head." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0004599 a rdfs:Class ;
rdfs:label "prosomere 4" ;
rdfs:comment "The 4th segment of the developing forebrain." ;
rdfs:subClassOf obo:XAO_0004598 .
obo:XAO_0004336 a rdfs:Class ;
rdfs:label "m. interhyoideus" ;
rdfs:comment "A thin curved muscle located between the ceratohyal cartilages." ;
rdfs:subClassOf obo:XAO_0004324 .
obo:XAO_0004367 a rdfs:Class ;
rdfs:label "fenestra subocularis" ;
rdfs:comment "The wide gap that separates the palatoquadrate from the neurocranium." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000015 a rdfs:Class ;
rdfs:label "hindbrain" ;
rdfs:comment "The part of the brain that is the posterior of its three primary divisions." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005129 a rdfs:Class ;
rdfs:label "proximal stomach" ;
rdfs:comment "The section of the stomach comprising the cardia, fundus, and stomach body." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003255 a rdfs:Class ;
rdfs:label "mesodermal cell" ;
rdfs:comment "A cell of the middle germ layer of the embryo." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005242 a rdfs:Class ;
rdfs:label "posterior neural fold" ;
rdfs:comment "The posterior portions of the U-shaped neural folds, the two longitudinal dorsal ridges caused by a folding up of the ectoderm, which appear on either side of the middle line of the early neurula embryo." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000245 a rdfs:Class ;
rdfs:label "mitochondrial cloud" ;
rdfs:comment "A prominent mass in the cytoplasm of previtellogenic oocytes. The cloud contains both mitochondria and electron-dense granulofibrillar material (GFM) and is the source of germinal granule material." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000329 a rdfs:Class ;
rdfs:label "coelomic epithelium" ;
rdfs:comment "The epithelial lining of the coelom." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0004358 a rdfs:Class ;
rdfs:label "basihyal" ;
rdfs:comment "Cartilaginous element that is median and is the anterior-most cartilage of the ventral hyoid arch." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004239 a rdfs:Class ;
rdfs:label "hindlimb digit 1" ;
rdfs:comment "The most posterior of the hind digits, consisting of a single metatarsal, 2 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003035 .
obo:XAO_0004148 a rdfs:Class ;
rdfs:label "myeloid cell" ;
rdfs:comment "A cell of the monocyte, granulocyte, mast cell, megakaryocyte, or erythroid lineage." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000458 a rdfs:Class ;
rdfs:label "occipital lateral line" ;
rdfs:comment "A short lateral line that extends from the ear in a posterior-dorsal direction." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0004183 a rdfs:Class ;
rdfs:label "pericardial muscle" ;
rdfs:comment "Muscle that is paired and runs anterio-posteriorly along the heart and is covered with epicardium." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_0005084 a rdfs:Class ;
rdfs:label "blastomere D1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline of the animal hemisphere at the eight-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0004588 a rdfs:Class ;
rdfs:label "subcommissural organ" ;
rdfs:comment "A small ependymal gland of the circumventricular system, located in the dorsocaudal region of the third ventricle." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0006017 a rdfs:Class ;
rdfs:label "xanthoblast" ;
rdfs:comment "A non-terminally differentiated cell that differentiates into a xanthophore." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003040 a rdfs:Class ;
rdfs:label "tissue" ;
rdfs:comment "Multicellular anatomical structure that consists of many cells of one or a few types, arranged in an extracellular matrix such that their long-range organization is at least partly a repetition of their short-range organization." ;
rdfs:subClassOf obo:XAO_0005002 .
obo:XAO_0000421 a rdfs:Class ;
rdfs:label "trunk somite 13" ;
rdfs:comment "The 11th somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0005316 a rdfs:Class ;
rdfs:label "periocular mesenchyme" ;
rdfs:comment "Head mesenchyme that is part of the periocular region." ;
rdfs:subClassOf obo:XAO_0004307 .
obo:XAO_0005257 a rdfs:Class ;
rdfs:label "obsolete right eye" .
obo:XAO_0000018 a rdfs:Class ;
rdfs:label "genital ridge" ;
rdfs:comment "Portion of tissue that is the precursor to the gonads." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004103 a rdfs:Class ;
rdfs:label "chordal neural plate border" ;
rdfs:comment "The portion of the neural plate border that is posterior to the mid-hindbrain junction, and from which neural crest cells arise." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003182 a rdfs:Class ;
rdfs:label "branchial arch skeleton 2" ;
rdfs:comment "Skeletal and cartilaginous elements of the second branchial or pharyngeal arch." ;
rdfs:subClassOf obo:XAO_0003180 .
obo:XAO_0004529 a rdfs:Class ;
rdfs:label "uveal tract" ;
rdfs:comment "Portion of tissue in an eye consisting of the iris, ciliary body, and choroid." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003078 a rdfs:Class ;
rdfs:label "sacral vertebra" ;
rdfs:comment "The 9th vertebra, which arises from the trunk somites 9 and 10. It joins the illia laterally at NF stage 60 and later coalesces with the urostyle in the midline of the pelvic girdle to form a single unit in the adult frog." ;
rdfs:subClassOf obo:XAO_0004019 .
obo:XAO_0000471 a rdfs:Class ;
rdfs:label "xanthophore" ;
rdfs:comment "A cell type that is derived from the neural crest and gives pigmentation to skin cells. Their predominantly red-yellow hue depends on the pattern of fat-soluble carotenoids (obtained from the diet) and pteridines (synthesized from the cell). They are rarely found in pre-metamorphic larvae." ;
rdfs:subClassOf obo:XAO_0003014 .
obo:XAO_0004509 a rdfs:Class ;
rdfs:label "dorsal lateral plate mesoderm" ;
rdfs:comment "Layer of lateral plate mesoderm that forms the body wall lining and dermis." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000109 a rdfs:Class ;
rdfs:label "posterior wall of neurenteric canal" ;
rdfs:comment "Structure formed by the ventral movement of the proctodeum anlage, which results in the shifting of the circumblastoral collar lateral walls to the posterior end of the embryo." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004206 a rdfs:Class ;
rdfs:label "anterior placodal area" ;
rdfs:comment "One of the 3 domains of the U-shaped preplacodal ectoderm (PPE), which lies abutting and anterior to the neural plate." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000031 a rdfs:Class ;
rdfs:label "ciliated epidermal cell" ;
rdfs:comment "Cell type that has motile cilia and populates the skin of the embryo, arranged in the surface layer of the non-neural ectoderm in an ordered distribution." ;
rdfs:subClassOf obo:XAO_0004621 , obo:XAO_0005017 .
obo:XAO_0004540 a rdfs:Class ;
rdfs:label "basal ganglion" ;
rdfs:comment "Composite structure derived principally from the subpallium and containing numerous ganglia of the ventral telencephalon." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_1000034 a rdfs:Class ;
rdfs:label "NF stage 18" ;
rdfs:comment "Nieuwkoop and Faber stage 18, corresponding to an embryo of age 19 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Neural groove stage. Anterior part of neural plate narrow, more or less club-shaped, often narrower towards rostral end. Parallel neural folds in trunk region very close to each other, not yet touching. Length: 1.5 - 1.6 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003030 a rdfs:Class ;
rdfs:label "forelimb" ;
rdfs:comment "One of the pair of limbs that are situated anteriorly, develop in sacs that separate them from the gill chamber, are well-defined buds by NF stage 48, are innervated by NF stage 51, and are ossified by NF stage 59." ;
rdfs:subClassOf obo:XAO_0003027 .
obo:XAO_0004518 a rdfs:Class ;
rdfs:label "proximal tubule" ;
rdfs:comment "The proximal segment of the pronephric tubule, closest to the glomus and functioning in solute resorption and waste excretion." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005116 a rdfs:Class ;
rdfs:label "melanotrope" ;
rdfs:comment "A cell in the pituitary gland (hypophysis) that generates melanocyte-stimulating hormone from its precursor polypeptide, pro-opiomelanocortin (POMC)." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004088 a rdfs:Class ;
rdfs:label "animal pole" ;
rdfs:comment "The apical region of the animal hemisphere." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004210 a rdfs:Class ;
rdfs:label "infundibulum" ;
rdfs:comment "The region of the diencephalon above Rathke's pouch, and forms the posterior lobe of the pituitary." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005140 a rdfs:Class ;
rdfs:label "lung bud" ;
rdfs:comment "A structure derived from the foregut that becomes a lung." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004541 a rdfs:Class ;
rdfs:label "bed nucleus of the stria terminalis" ;
rdfs:comment "A brain structure in the forebrain wrapped around the stria terminalis. Its largest extent can be found around the crossing of the anterior commissure." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004583 a rdfs:Class ;
rdfs:label "preoptic area" ;
rdfs:comment "Area of the forebrain anterior to the posterior tuberculum and the hypothalamus and ventral to the ventral thalamus." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004250 a rdfs:Class ;
rdfs:label "facial vein" ;
rdfs:comment "Vein that collects blood from muscles of the head and drains into the external jugular vein." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004443 a rdfs:Class ;
rdfs:label "mm. constrictores branchiales IV primordium" ;
rdfs:comment "The presumptive cells of the constrictores branchiales IV muscles." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004033 a rdfs:Class ;
rdfs:label "avascular GAG-rich matrix" ;
rdfs:comment "Proteinaceous extracellular matrix that is avascular and consists primarily of glycosaminoglycans." ;
rdfs:subClassOf obo:XAO_0004032 .
obo:XAO_0003096 a rdfs:Class ;
rdfs:label "glossopharyngeal nerve" ;
rdfs:comment "Cranial nerve that branches into the ramus communicans (to the skin), the pretrematic (to the walls of the pharynx and mouth, viscero-sensory fibers), and the larval post-trematic branch (lost in the adult)." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0004447 a rdfs:Class ;
rdfs:label "m. dilatator laryngis primordium" ;
rdfs:comment "The presumptive cells of the dilatator laryngis muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000062 a rdfs:Class ;
rdfs:label "pronephric nephrostome" ;
rdfs:comment "Any of the ciliated tubules that collect the glomeral filtrate, passing it through to the pronephric tubules." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004469 a rdfs:Class ;
rdfs:label "trabecula" ;
rdfs:comment "A small tissue element in the form of a beam, strut, or rod that generally has a mechanical function and is usually composed of dense cartilaginous tissue." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004478 a rdfs:Class ;
rdfs:label "forelimb digit 2" ;
rdfs:comment "The most posterior digit of a forelimb, consisting of a single metatarsal, 3 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003036 .
obo:XAO_0000356 a rdfs:Class ;
rdfs:label "vascular endothelium" ;
rdfs:comment "Simple squamous epithelium that lines blood and lymphatic vessels and the heart." ;
rdfs:subClassOf obo:XAO_0004010 .
obo:XAO_0004375 a rdfs:Class ;
rdfs:label "planum trabeculare anticum" ;
rdfs:comment "Cartilaginous element that is posterior to the cornua trabeculae." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0003042 a rdfs:Class ;
rdfs:label "embryonic structure" ;
rdfs:comment "An anatomical structure that exists only before the organism is fully formed." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0004291 a rdfs:Class ;
rdfs:label "cell-free extract" ;
rdfs:comment "A solution obtained by rupturing cells (especially unfertilized oocytes) and removing all particulate matter." ;
rdfs:subClassOf obo:XAO_0003007 .
obo:XAO_0003120 a rdfs:Class ;
rdfs:label "myotome of trunk somite 8" ;
rdfs:comment "Compartment of trunk somite 8 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0004246 a rdfs:Class ;
rdfs:label "rhombomere R7" ;
rdfs:comment "The 7th segment of the developing hindbrain." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0004213 a rdfs:Class ;
rdfs:label "vagal epibranchial placode" ;
rdfs:comment "The most posterior of the epibranchial placodes, in 3 distinct zones, associated with the 3rd to 6th pharyngeal clefts, and contributing to the facial, lateral line and glossopharyngeal ganglion." ;
rdfs:subClassOf obo:XAO_0000284 .
obo:XAO_0004405 a rdfs:Class ;
rdfs:label "Leydig cell" ;
rdfs:comment "A type of special epithelial cell that secretes mucus into the subsurface extracellular compartments of the epidermis." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0005265 a rdfs:Class ;
rdfs:label "dorsal trunk" ;
rdfs:comment "Part of the trunk located on the dorsal side of the organism." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0003263 a rdfs:Class ;
rdfs:label "paracrine cell" ;
rdfs:comment "A secretory cell that secretes an agonist into intercellular spaces in which it diffuses to a target cell other than that which produced it." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000364 a rdfs:Class ;
rdfs:label "caudal artery" ;
rdfs:comment "The posterior extension of the dorsal aorta to the tail region, which degenerates at metamorphosis." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0000188 a rdfs:Class ;
rdfs:label "optic nerve" ;
rdfs:comment "Cranial nerve that is continuous with the layer of nerve cells on the inner surface of the eye. It exits the neurocranium via the large optic foramen and is covered by a fibrous connective tissue sheath. It transmits visual information from the retina to the brain." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0004224 a rdfs:Class ;
rdfs:label "transporting epithelium" ;
rdfs:comment "Type of epithelium that facilitates the transcellular transport of solutes. This transport can either be absorption, transport from lumen (apical membrane surface) to blood; or secretion, transport from blood (basolateral membrane surface) to lumen." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0004626 a rdfs:Class ;
rdfs:label "ventral fin vasculature" ;
rdfs:comment "Blood vessel that is part of the ventral fin." ;
rdfs:subClassOf obo:XAO_0001011 .
obo:XAO_0000076 a rdfs:Class ;
rdfs:label "involuting marginal zone epithelial layer" ;
rdfs:comment "Layer of prospective mesoderm in the IMZ that will form the roof of the archenteron." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000353 a rdfs:Class ;
rdfs:label "aortic arch 6" ;
rdfs:comment "The sixth in a series paired arterial connections between the dorsal and ventral aortae. Aortic arch 6 artery is paired and has a common trunk with aortic arch 5 from the ventral aorta, and drains via a separate branch of the lateral dorsal aorta. It forms part of the pulmonary arteries, and in the later embryo, the ductus arteriosis. Aortic arches 5 and 6 together supply the trunk and tail with oxygenated blood." ;
rdfs:subClassOf obo:XAO_0000341 .
obo:XAO_0004029 a rdfs:Class ;
rdfs:label "hyaline cartilage tissue" ;
rdfs:comment "Cartilage tissue primarily composed of type II collagen (thin fibrils) and a glassy appearance." ;
rdfs:subClassOf obo:XAO_0000170 .
obo:XAO_0003101 a rdfs:Class ;
rdfs:label "spinal nerve" ;
rdfs:comment "A mixed nerve that carries motor, sensory, and autonomic signals between the spinal cord and the body." ;
rdfs:subClassOf obo:XAO_0003047 .
obo:XAO_0000222 a rdfs:Class ;
rdfs:label "obsolete ear placode" .
obo:XAO_0005203 a rdfs:Class ;
rdfs:label "dorsal-ventral axis" ;
rdfs:comment "An axis that is approximately perpendicular to the anterior-posterior axis and that extends through the horizontal plane of the body." ;
rdfs:subClassOf obo:XAO_0005200 .
obo:XAO_0000169 a rdfs:Class ;
rdfs:label "bone tissue" ;
rdfs:comment "The hard form of connective tissue that constitutes the majority of the skeleton." ;
rdfs:subClassOf obo:XAO_0004038 .
obo:XAO_0005020 a rdfs:Class ;
rdfs:label "stromal cell" ;
rdfs:comment "A connective tissue cell of any organ." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005283 a rdfs:Class ;
rdfs:label "non-neurogenic ectodermal placode" ;
rdfs:comment "Ectodermal placode that does not develop into a component of the nervous system." ;
rdfs:subClassOf obo:XAO_0000305 .
obo:XAO_0000237 a rdfs:Class ;
rdfs:label "ileum" ;
rdfs:comment "The final section of the small intestine." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004615 a rdfs:Class ;
rdfs:label "basal body" ;
rdfs:comment "A membrane-tethered, short cylindrical array of microtubules and associated proteins found at the base of a cilium that is similar in structure to a centriole and derives from it. The cilium basal body is the site of assembly and remodelling of the cilium and serves as a nucleation site for axoneme growth." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000342 a rdfs:Class ;
rdfs:label "aortic arch 1" ;
rdfs:comment "The anterior member of a series of six paired arterial connections between the dorsal and ventral aortae. Aortic arch that is part of mandibular arch." ;
rdfs:subClassOf obo:XAO_0000341 .
obo:XAO_0004304 a rdfs:Class ;
rdfs:label "prethalamus" ;
rdfs:comment "Multi-tissue structure forming the anterior part of the diencephalon and lying between the thalamus, hypothalamus, and eminentia thalami." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004230 a rdfs:Class ;
rdfs:label "anterior hypothalamus" ;
rdfs:comment "Anterior part of the hypothalamus, given rise by the midanterior neural ridge along with the chiasmatic ridge during forebrain morphogenesis." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003162 a rdfs:Class ;
rdfs:label "acellular anatomical structure" ;
rdfs:comment "Anatomical structure that consists of cell parts and cell substances and together does not constitute a cell or a tissue." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0003213 a rdfs:Class ;
rdfs:label "tibia-fibula" ;
rdfs:comment "Bone of the lower hind leg, which undergoes ossification from NF stage 56 to stage 66." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_1000088 a rdfs:Class ;
rdfs:label "oocyte stage VI" ;
rdfs:comment "The developmental stage of the female gamete at which the gamete is fully grown." ;
rdfs:subClassOf obo:XAO_1000082 .
obo:XAO_0003131 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 12" ;
rdfs:comment "Compartment of trunk somite 12 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004293 a rdfs:Class ;
rdfs:label "ring structure" ;
rdfs:comment "Contractile ring formed at the division plane of the oocyte during first cleavage." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004414 a rdfs:Class ;
rdfs:label "hindlimb digit 4" ;
rdfs:comment "The 2nd most anterior of the hind digits, consisting of a single metatarsal, 3 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003035 .
obo:XAO_0004286 a rdfs:Class ;
rdfs:label "scapula" ;
rdfs:comment "Bone that forms the posterior part of the pectoral (shoulder) girdle." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0005298 a rdfs:Class ;
rdfs:label "tracheal epithelium" ;
rdfs:comment "The epithelium of the trachea." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0000389 a rdfs:Class ;
rdfs:label "gastric vein" ;
rdfs:comment "One of the veins of the alimentary system. The subintestinal vein is on the right side of the gut and drains the gastric vein on its right side by NF stage 43. The gastric veins carry blood low in oxygen from the surface of the stomach, draining into the left omphalomesenteric vein." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000443 a rdfs:Class ;
rdfs:label "trunk lateral line" ;
rdfs:comment "A lateral line that is present on the trunk of the organism." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0005179 a rdfs:Class ;
rdfs:label "multiciliated epidermal cell" ;
rdfs:comment "A ciliated epidermal cell that has more than one cilium." ;
rdfs:subClassOf obo:XAO_0000031 , obo:XAO_0005139 .
obo:XAO_0000122 a rdfs:Class ;
rdfs:label "hematological system" ;
rdfs:comment "Anatomical system that consists of the blood and blood forming tissues." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0003053 a rdfs:Class ;
rdfs:label "Keller explant" ;
rdfs:comment "A rectangle of dorsal mesendoderm and ectoderm from an early-gastrula-stage Xenopus laevis embryo. It is approximately 60 deg to 90 deg wide, extending from the bottle cells to the animal pole." ;
rdfs:subClassOf obo:XAO_0003007 .
obo:XAO_0006042 a rdfs:Class ;
rdfs:label "bone marrow cell" ;
rdfs:comment "A cell found in the bone marrow. This can include fibroblasts, macrophages, adipocytes, osteoblasts, osteoclasts, endothelial cells and hematopoietic cells." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003173 a rdfs:Class ;
rdfs:label "occipital region" ;
rdfs:comment "An anatomical cluster that is located in the posterior region of the neurocranium and forms the margin of the foramen margin and occipital condyles." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005239 a rdfs:Class ;
rdfs:label "obsolete caudal notochord" .
obo:XAO_0005198 a rdfs:Class ;
rdfs:label "cardiac atrium" ;
rdfs:comment "Cardiac chamber in which blood enters the heart." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0004095 a rdfs:Class ;
rdfs:label "lens transitional zone" ;
rdfs:comment "The region of the lens of the eye where cells from the anterior epithelial capsule become transformed into the fibers that compose the lens substance." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005228 a rdfs:Class ;
rdfs:label "efferent neuron" ;
rdfs:comment "A neuron that transmits nerve impulses away from the central nervous system to the muscles or glands." ;
rdfs:subClassOf obo:XAO_0003023 .
obo:XAO_0004189 a rdfs:Class ;
rdfs:label "endocardial cushion" ;
rdfs:comment "The discrete swellings of cardiac jelly in the outflow tract and ventricular walls of the developing embryonic heart." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005045 a rdfs:Class ;
rdfs:label "dorsal crest of the endoderm" ;
rdfs:comment "Dorsal endoderm that is adjacent to the notochord." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005131 a rdfs:Class ;
rdfs:label "astrocyte" ;
rdfs:comment "A characteristically star-shaped type of glial cell found in the optic nerve, brain and spinal cord. They have many processes, giving them their star shape, which terminate in structures called end-feet. They are the most numerous glial cell in the central nervous system and can behave like phagocytes in the CNS during metamorphosis." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_0004004 a rdfs:Class ;
rdfs:label "atypical epithelium" ;
rdfs:comment "Epithelium that consists of epithelial cells not arranged in one ore more layers." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0004194 a rdfs:Class ;
rdfs:label "appendicular ossicle" ;
rdfs:comment "Ossicle that is part of the appendicular skeleton." ;
rdfs:subClassOf obo:XAO_0004193 .
obo:XAO_0005136 a rdfs:Class ;
rdfs:label "dorsal involuting marginal zone" ;
rdfs:comment "Tissue which during gastrulation involutes into the interior of the embryo, where its deep mesenchymal cells form the notochordal and somitic mesoderm and its superficial epithelial cells form the endodermal roof of the archenteron." ;
rdfs:subClassOf obo:XAO_0000068 .
obo:XAO_0004353 a rdfs:Class ;
rdfs:label "m. rectus posterior" ;
rdfs:comment "Muscle in the orbit that inserts on the posterior side of the eye and the function of which is adduction of the eyeball." ;
rdfs:subClassOf obo:XAO_0004327 .
obo:XAO_1000070 a rdfs:Class ;
rdfs:label "NF stage 58" ;
rdfs:comment "Nieuwkoop and Faber stage 58, corresponding to a tadpole of age about 44 days at 22-24 Celsius and having the following external morphological criteria: Forelimbs broken through. Guanophores appearing on abdomen and thighs (adult skin areas). All three claws present on hindlimbs. Length: 80 - 110 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003019 a rdfs:Class ;
rdfs:label "spermatocyte" ;
rdfs:comment "The developing male gamete." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0001012 a rdfs:Class ;
rdfs:label "Stirnorgan" ;
rdfs:comment "Structure that is part of the pineal system, is located in the skin on the dorsal surface of the head, and is exposed continuously to ambient illumination." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000334 a rdfs:Class ;
rdfs:label "mesonephric late distal tubule" ;
rdfs:comment "The site of bicarbonate resorption in the adult kidney. It is equivalent to the convoluted distal segment of metanephric nephrons." ;
rdfs:subClassOf obo:XAO_0000148 .
obo:XAO_0005287 a rdfs:Class ;
rdfs:label "jaw muscle primordium" ;
rdfs:comment "The presumptive cells of the jaw muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000255 a rdfs:Class ;
rdfs:label "visceral pouch 5" ;
rdfs:comment "Fifth of the pharyngeal (endodermal) evaginations between the visceral arches." ;
rdfs:subClassOf obo:XAO_0000282 .
obo:XAO_0004282 a rdfs:Class ;
rdfs:label "median fin skeleton" ;
rdfs:comment "Postcranial axial skeleton that is unpaired and located on the sagittal plane of the organism." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0003146 a rdfs:Class ;
rdfs:label "gonad" ;
rdfs:comment "Anatomical structure that produces gametes as well as certain sex hormones controlled by the pituitary gonadotropins. Reproductive organ that produces and releases eggs (ovary) or sperm (testis)." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0005187 a rdfs:Class ;
rdfs:label "neurohypophysis" ;
rdfs:comment "The posterior lobe of the pituitary gland (hypophysis). It is largely a collection of axonal projections from the hypothalamus that terminate behind the anterior pituitary, and serve as a site for the secretion of neurohypophysial hormones (oxytocin and vasopressin) directly into the blood. It is not glandular as is the anterior pituitary." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005503 a rdfs:Class ;
rdfs:label "tracheoesophageal septum" ;
rdfs:comment "Septum dividing the esophagus from the trachea." ;
rdfs:subClassOf obo:XAO_0005425 .
obo:XAO_0004489 a rdfs:Class ;
rdfs:label "spike" ;
rdfs:comment "A cone-shaped hypomorphic structure consisting of a single continuous cartilage, typical of a regenerated forelimb or hindlimb when amputated after a specific developmental stage." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0004215 a rdfs:Class ;
rdfs:label "hypoglossal nerve" ;
rdfs:comment "Nerve that leads to the muscles of the tongue (mm geniohyoideus, genioglossus, hyoglossus, and rectus cervicis) and has both sensory and motor functions." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0003186 a rdfs:Class ;
rdfs:label "anatomical region" ;
rdfs:comment "A region of the whole organism that contains a recognizable set of structures or anatomical entities." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0003184 a rdfs:Class ;
rdfs:label "branchial arch skeleton 4" ;
rdfs:comment "Skeletal and cartilaginous elements of the fourth branchial or pharyngeal arch." ;
rdfs:subClassOf obo:XAO_0003180 .
obo:XAO_0004343 a rdfs:Class ;
rdfs:label "mm. levator arcuum branchialium IV" ;
rdfs:comment "The 4th branchial levator muscle, which contributes to raising the branchial apparatus." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0000107 a rdfs:Class ;
rdfs:label "tail bud" ;
rdfs:comment "Rapidly proliferating mass of cells at the caudal extremity of the embryo. Its formation is reflected in a caudal carving of the posterior portion of the archenteric canal at NF stage 22. With its further outgrowth, the postanal gut primordium becomes stretched. Its lumen is in broad communication with the hindgut at NF stage 25." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000249 a rdfs:Class ;
rdfs:label "neural plate" ;
rdfs:comment "A region of embryonic ectodermal cells that lie directly above the notochord. During neurulation, they change shape and produce an infolding of the neural plate (the neural fold) that then seals to form the neural tube. At NF stage 11.5 is the first indication of neural plate within the sensorial layer of ectoderm. It extends to near the animal pole by NF stage 12.5 and the entire plate is faintly delimited by NF stage 13." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005075 a rdfs:Class ;
rdfs:label "Bowman's gland" ;
rdfs:comment "Any of the branched tubuloalveolar glands situated in the mucous membrane of the olfactory region of the nasal cavity that produce mucus to moisten the olfactory epithelium and dissolve odor-containing gases." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005209 a rdfs:Class ;
rdfs:label "ventral side" ;
rdfs:comment "An anatomical region that is the entire part of an anatomical structure ventral to a horizontal plane and bounded on one side by the same horizontal plane." ;
rdfs:subClassOf obo:XAO_0005205 .
obo:XAO_0005125 a rdfs:Class ;
rdfs:label "ventral foregut" ;
rdfs:comment "The ventral part of the foregut." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004436 a rdfs:Class ;
rdfs:label "m. transversus ventralis II primordium" ;
rdfs:comment "The presumptive cells of the transversus ventralis II muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0003227 a rdfs:Class ;
rdfs:label "pharynx" ;
rdfs:comment "Anatomical cavity bounded by the derivatives of the branchial arches." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003085 a rdfs:Class ;
rdfs:label "Meckel's cartilage" ;
rdfs:comment "Paired cartilaginous component of the lower jaw that fuses together through a median inferior labial cartilage, resulting in a single curved bar of cartilage by metamorphic climax. During metamorphosis it is surrounded by the developing dentale and goniale." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004107 a rdfs:Class ;
rdfs:label "regenerating hindlimb" ;
rdfs:comment "A portion of hind limb tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004311 .
obo:XAO_0003202 a rdfs:Class ;
rdfs:label "pharyngeal epithelium" ;
rdfs:comment "Epithelium lining the pharynx, consisting largely of simple columnar epithelium." ;
rdfs:subClassOf obo:XAO_0004007 .
obo:XAO_1000077 a rdfs:Class ;
rdfs:label "NF stage 65" ;
rdfs:comment "Nieuwkoop and Faber stage 65, corresponding to a tadpole of age about 54 days at 22-24 Celsius and having the following external morphological criteria: Borderlines between adult skin areas partly disappeared. Tail oblong triangular in dorsal aspect, length abouth one tenth of body length." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0001001 a rdfs:Class ;
rdfs:label "cranial neural crest" ;
rdfs:comment "The most anterior of 5 distinct and partially overlapping functional domains of the premigratory neural crest, which are intially part of the neural epithelium. CNC cells migrate through the extracelluar matrix in 4 highly conserved streams: the mandibular crest, hyoid crest, anterior branchial crest and the posterior branchial crest." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000028 a rdfs:Class ;
rdfs:label "NF stage 2-" ;
rdfs:comment "Nieuwkoop and Faber stage 2-, corresponding to an embryo of age 1 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Beginning of first cleavage. First cleavage groove has not yet reached vegetal pole. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0003151 a rdfs:Class ;
rdfs:label "spermatid" ;
rdfs:comment "Male germ cell that is derived from spermatocytes and develops into spermatozoa." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0004332 a rdfs:Class ;
rdfs:label "m. levator mandibulae externus" ;
rdfs:comment "Muscle that is part a complex that arises from the skull roof and acts to elevate or close the lower jaw. The last jaw levator to develop, it originates rostral to the palatoquadrate." ;
rdfs:subClassOf obo:XAO_0004323 .
obo:XAO_0004235 a rdfs:Class ;
rdfs:label "manicotto glandulare" ;
rdfs:comment "The larval stomach." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004411 a rdfs:Class ;
rdfs:label "lateral line primordium" ;
rdfs:comment "Portion of tissue that migrates and deposits immature neuromasts and interneuromasts." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0005031 a rdfs:Class ;
rdfs:label "radial glial cell" ;
rdfs:comment "A cell present in the developing central nervous system. It functions as both a precursor cell and as a scaffold to support neuronal migration. Some have a multipotent ability, as they can differentiate into neurons and radial glial cells by asymmetric divisions during the period of embryonic neurogenesis. They occur mainly in the ventricular layer of the tectum and decrease in number as the brain matures." ;
rdfs:subClassOf obo:XAO_0004308 .
obo:XAO_0004275 a rdfs:Class ;
rdfs:label "axial ossicle" ;
rdfs:comment "Ossicle that is part of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0004193 .
obo:XAO_0000190 a rdfs:Class ;
rdfs:label "tympanic disk" ;
rdfs:comment "A flattened, roughly circular cartilage derived from the extrastapes. This thin membrane or integument is stretched over the cartilaginous tympanic annulus in a drum-like manner, and forms the outer ear, receiving airborne vibrations and functioning in hearing." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0005017 a rdfs:Class ;
rdfs:label "ciliated cell" ;
rdfs:comment "A cell that has a filiform extrusion of the cell surface." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004490 a rdfs:Class ;
rdfs:label "forelimb bud tip" ;
rdfs:comment "The apical region of a developing forelimb bud which will form the autopod segment of the forelimb." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003035 a rdfs:Class ;
rdfs:label "hindlimb digit" ;
rdfs:comment "Any of the 5 digits that are the most distal parts of a hindlimb, each digit consisting of a single metatarsal, 2-4 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003032 .
obo:XAO_0005168 a rdfs:Class ;
rdfs:label "gamma cell" ;
rdfs:comment "A type of cell that produces pancreatic polypeptides in the pancreatic islets (the islets of Langerhans) of the pancreas." ;
rdfs:subClassOf obo:XAO_0005135 .
obo:XAO_0000073 a rdfs:Class ;
rdfs:label "obsolete deep (mesenchymal) layer" .
obo:XAO_0003238 a rdfs:Class ;
rdfs:label "chondroblast" ;
rdfs:comment "A cell that originates from a mesenchymal stem cell and forms chondrocytes (cartilage cells). Chondroblasts that become embedded in the matrix are called chondrocytes." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004425 a rdfs:Class ;
rdfs:label "m. levator mandibulae longus internus primordium" ;
rdfs:comment "The presumptive cells of the levator mandibulae longus internus muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_1000017 a rdfs:Class ;
rdfs:label "NF stage 7" ;
rdfs:comment "Nieuwkoop and Faber stage 7 (64-cell stage), corresponding to an embryo of age 4 hr at 22-24 Celsius and having the following external morphological criteria: Large-cell blastula stage. In animal view about 10 micromeres along meridian. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000328 a rdfs:Class ;
rdfs:label "spleen" ;
rdfs:comment "Internal lymphoid organ the primary function of which is to filter blood." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003041 .
obo:XAO_0004202 a rdfs:Class ;
rdfs:label "pre-enamel" ;
rdfs:comment "Odontogenic tissue that is avascular non-mineralized matrix that is deposited by preameloblast and ameloblasts that are excluded from the matrix." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_0006031 a rdfs:Class ;
rdfs:label "Kupffer cell" ;
rdfs:comment "A tissue-resident macrophage of the reticuloendothelial system found on the luminal surface of the hepatic sinusoids (liver), involved in erythrocyte clearance." ;
rdfs:subClassOf obo:XAO_0005025 .
obo:XAO_0005070 a rdfs:Class ;
rdfs:label "sulcus limitans of neural tube" ;
rdfs:comment "A shallow, longitudinal groove separating the developing gray matter into a basal and alar plates along the length of the neural tube." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0005056 a rdfs:Class ;
rdfs:label "supraoptoparaventricular region" ;
rdfs:comment "The dorsal region of the alar hypothalamus." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0005425 a rdfs:Class ;
rdfs:label "transient tracheoesophageal septum" ;
rdfs:comment "Temporary septum formed from epithelial tissue dividing the esophagus from the trachea. After mesenchymal invasion this gives rise to the permanent tissue separating the esophagus from the trachea." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0004059 a rdfs:Class ;
rdfs:label "regenerating tissue" ;
rdfs:comment "A portion of tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005120 a rdfs:Class ;
rdfs:label "endoplasmic reticulum" ;
rdfs:comment "The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached)." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004553 a rdfs:Class ;
rdfs:label "granule cell" ;
rdfs:comment "Type of neuron characterized by having very small cell bodies. These cells are found within the granular layers of the cerebellum and the olfactory bulb." ;
rdfs:subClassOf obo:XAO_0004267 .
obo:XAO_0000163 a rdfs:Class ;
rdfs:label "thymus" ;
rdfs:comment "Anatomical structure of largely lymphoid tissue that arises from the third pharyngeal pouch, and that functions in cell-mediated immunity by being the site where T cells develop." ;
rdfs:subClassOf obo:XAO_0003041 .
obo:XAO_0005276 a rdfs:Class ;
rdfs:label "obsolete left optic vesicle" .
obo:XAO_0004178 a rdfs:Class ;
rdfs:label "dorsal longitudinal anastomosing vessel - left branch" ;
rdfs:comment "The major (left) branch of the dorsal longitudinal anastomosing vessel (dlav); it remains as the sole branch after the right branch breaks up at NF stage 44." ;
rdfs:subClassOf obo:XAO_0004177 .
obo:XAO_0000115 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:XAO_0001011 .
obo:XAO_0004044 a rdfs:Class ;
rdfs:label "non-mineralized hyaline cartilage tissue" ;
rdfs:comment "Hyaline cartilage tissue that is not mineralized." ;
rdfs:subClassOf obo:XAO_0004029 , obo:XAO_0004043 .
obo:XAO_0005311 a rdfs:Class ;
rdfs:label "myofibril" ;
rdfs:comment "The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000201 a rdfs:Class ;
rdfs:label "obsolete olfactory apparatus" .
obo:XAO_0000054 a rdfs:Class ;
rdfs:label "trunk region" ;
rdfs:comment "The anatomical region of the body posterior to the head and anterior to the tail." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004622 a rdfs:Class ;
rdfs:label "myotome of tail somite 18" ;
rdfs:comment "Compartment of tail somite 18 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0005322 a rdfs:Class ;
rdfs:label "tadpole" ;
rdfs:comment "An organism at the tadpole stage." ;
rdfs:subClassOf obo:XAO_0003004 .
obo:XAO_0003115 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 3" ;
rdfs:comment "Compartment of trunk somite 3 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0005423 a rdfs:Class ;
rdfs:label "anterior notochord" ;
rdfs:comment "The anterior portion of the notochord." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003164 a rdfs:Class ;
rdfs:label "solid compound organ" ;
rdfs:comment "Compound organ that does not contain macroscopic anatomical spaces." ;
rdfs:subClassOf obo:XAO_0003041 .
obo:XAO_0004145 a rdfs:Class ;
rdfs:label "vestibular apparatus" ;
rdfs:comment "A small, oval, bony chamber of the labyrinth. The vestibule contains the utricle and saccule, organs which are part of the balancing apparatus of the ear." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004257 a rdfs:Class ;
rdfs:label "Jacobson's vein" ;
rdfs:comment "Vein that drains Jacobson's organ." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0005092 a rdfs:Class ;
rdfs:label "blastomere V1.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective ventral midline of the animal hemisphere at the 16-cell stage." ;
rdfs:subClassOf obo:XAO_0005115 .
obo:XAO_0000345 a rdfs:Class ;
rdfs:label "external carotid artery" ;
rdfs:comment "Artery that arises from the ventral aorta and delivers blood to the filter apparatus. It is visible as a bilateral pair of vessels on the ventral surface of the head, running between the heart and the tip of the jaw." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0006010 a rdfs:Class ;
rdfs:label "outer segment disk" ;
rdfs:comment "One of an array of membranous disks projecting from outer segment cilia. In rods/rod cells, these disks are discontinuous, being divided into lobules or \"incisures\", and are surrounded by a plasma membrane." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0005142 a rdfs:Class ;
rdfs:label "pars media of the stapes" ;
rdfs:comment "The bony part of the stapes which forms the shaft. It is shaped like a bent rod: its distal half is firmly embedded within the tympanic disk, extending from the disk center caudally and dorsally, turning inwards, until it reaches the oval window at a shallow angle." ;
rdfs:subClassOf obo:XAO_0004276 .
obo:XAO_0003265 a rdfs:Class ;
rdfs:label "somatic stem cell" ;
rdfs:comment "A stem cell that can give rise to cell types of the body other than those of the germ-line." ;
rdfs:subClassOf obo:XAO_0003054 .
obo:XAO_0004309 a rdfs:Class ;
rdfs:label "postmigratory neural crest cell" ;
rdfs:comment "Any of the cells that are of neural crest origin, now in place in their postmigratory target tissues, such as the sciatic nerve, dorsal root ganglia, gut or skin. They can be visualised or detected by specific molecular markers." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003070 a rdfs:Class ;
rdfs:label "obsolete hind metapodium" .
obo:XAO_0000378 a rdfs:Class ;
rdfs:label "musculoabdominal vein" ;
rdfs:comment "Ventrolateral component of the external jugular vein." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000065 a rdfs:Class ;
rdfs:label "myocardium" ;
rdfs:comment "Cardiac muscle constituting the middle layer of the heart." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_0004458 a rdfs:Class ;
rdfs:label "peripheral retina" ;
rdfs:comment "Anatomical region comprising the peripheral part of the retina." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004185 a rdfs:Class ;
rdfs:label "primary heart field" ;
rdfs:comment "The field of cardiac progenitor cells that form the heart tube in the embryonic heart." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000168 a rdfs:Class ;
rdfs:label "musculoskeletal system" ;
rdfs:comment "Anatomical system that provides locomotion and physical support to the organism." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0000199 a rdfs:Class ;
rdfs:label "vestibule" ;
rdfs:comment "The small, oval, bony chamber of the labyrinth. The vestibule contains the utricle and saccule, organs which are part of the balancing apparatus of the ear." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006007 a rdfs:Class ;
rdfs:label "glial endfoot" ;
rdfs:comment "An expansion of the terminal end of Müller cells, where the projection contacts a retinal ganglionic cell. Glial endfeet make a continuous layer directly beneath the basement membrane of retinal growth cones." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000230 a rdfs:Class ;
rdfs:label "follicle cell" ;
rdfs:comment "Cell type that forms a layer within an ovarian follicle that surrounds the oocyte." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004575 a rdfs:Class ;
rdfs:label "nucleus accumbens" ;
rdfs:comment "A region of the brain consisting of a collection of neurons located in the forebrain ventral to the caudate and putamen." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0004040 a rdfs:Class ;
rdfs:label "mineralized bone tissue" ;
rdfs:comment "Bone tissue mineralized with hydroxyapatite." ;
rdfs:subClassOf obo:XAO_0000169 , obo:XAO_0004039 .
obo:XAO_0005248 a rdfs:Class ;
rdfs:label "dorsal posterior hindgut endoderm" ;
rdfs:comment "Dorsal part of the posterior hindgut endoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003104 a rdfs:Class ;
rdfs:label "myotome of head somite 1" ;
rdfs:comment "Compartment of head somite 1 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0005038 a rdfs:Class ;
rdfs:label "nucleus" ;
rdfs:comment "A membrane-bounded organelle of in which chromosomes are housed and replicated. In most cells, it contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some specialized cell types, RNA metabolism or DNA replication may be absent." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000046 a rdfs:Class ;
rdfs:label "chordal neural plate" ;
rdfs:comment "The portion of neural plate posterior to the mid-hindbrain junction." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004081 a rdfs:Class ;
rdfs:label "rhombomere R3" ;
rdfs:comment "The 3rd segment of the developing hindbrain, between rhombomeres r2 and r4, which along with r2 is dorsal to branchial arch 1." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0004241 a rdfs:Class ;
rdfs:label "ischiadic vein" ;
rdfs:comment "A vein of the hind limb, first visible in the developing hind limb bud at c. NF stage 50 when it enters the ventral commissural vessel." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000404 a rdfs:Class ;
rdfs:label "head somite 3" ;
rdfs:comment "Transient occipital somite that exists from NF stages 18 to 29/30 only." ;
rdfs:subClassOf obo:XAO_0000313 .
obo:XAO_0005259 a rdfs:Class ;
rdfs:label "obsolete right inner ear" .
obo:XAO_0000233 a rdfs:Class ;
rdfs:label "germ plasm" ;
rdfs:comment "A zone found in the cytoplasm of the egg cells that contains determinants that will give rise to the primordial germ cells. As the zygote undergoes mitotic divisions the germ plasm is ultimately restricted to a few cells of the embryo." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000319 a rdfs:Class ;
rdfs:label "trunk neural crest" ;
rdfs:comment "Neural crest cells that migrate along two major pathways: through the somites, to populate the skin where they give rise to pigment cells; cells migrating along the lateral pathway generate sensory and sympathetic ganglia and adrenal chromaffin cells, among others." ;
rdfs:subClassOf obo:XAO_0005327 .
obo:XAO_0004349 a rdfs:Class ;
rdfs:label "m. constrictor laryngis" ;
rdfs:comment "Muscle that consists of dorsal and ventral parts that arise from medial raphe and insert on the arytenoid cartilages." ;
rdfs:subClassOf obo:XAO_0004351 .
obo:XAO_0004018 a rdfs:Class ;
rdfs:label "endochondral bone" ;
rdfs:comment "Replacement bone that forms within cartilage." ;
rdfs:subClassOf obo:XAO_0004017 .
obo:XAO_0004586 a rdfs:Class ;
rdfs:label "solitary tract" ;
rdfs:comment "A compact fiber bundle that extends longitudinally through the posterolateral region of the medulla and is surrounded by the nucleus of the solitary tract, and descends to the upper cervical segments of the spinal cord." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004611 a rdfs:Class ;
rdfs:label "right ventricle" ;
rdfs:comment "The lateral ventricle that is located in the right hemisphere of the brain." ;
rdfs:subClassOf obo:XAO_0004607 .
obo:XAO_0005049 a rdfs:Class ;
rdfs:label "prethalamus basal plate" ;
rdfs:comment "The ventral half of the developing neural tube that is the prethalamus." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005103 a rdfs:Class ;
rdfs:label "blastomere D2.2.2" ;
rdfs:comment "Blastomere which lies lateral to blastomere D2.1.2, anterior to its sister cell, blastomere D2.2.1, in the third tier of blastomeres. It contributes cells to the epidermis, neural crest, brain, spinal cord, head mesoderm, somites, pronephric kidney, lateral plate mesoderm, tail fin mesenchyme, foregut, hindgut, with occasional cells in the liver and proctodeum observed." ;
rdfs:subClassOf obo:XAO_0005112 .
obo:XAO_1000002 a rdfs:Class ;
rdfs:label "early tailbud stage" ;
rdfs:comment "Tailbud stage that refers to the earlier events associated with this stage, comprising Nieuwkoop and Faber stages 22 to 28." ;
rdfs:subClassOf obo:XAO_1000007 .
obo:XAO_0004122 a rdfs:Class ;
rdfs:label "proliferative region" ;
rdfs:comment "Anatomical cluster that consists of rapidly dividing cells." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005001 a rdfs:Class ;
rdfs:label "acellular bone tissue" ;
rdfs:comment "Mineralized bone tissue that has terminally differentiated osteoblasts but lacks osteocytes." ;
rdfs:subClassOf obo:XAO_0004040 .
obo:XAO_0005175 a rdfs:Class ;
rdfs:label "right-dorsal blastomere" ;
rdfs:comment "The blastomere of the future right-dorsal portion of the embryo at the 4-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0004321 a rdfs:Class ;
rdfs:label "dorsal caudal lymphatic vessel" ;
rdfs:comment "Lymphatic vessel located in the posterior dorsal region of the trunk." ;
rdfs:subClassOf obo:XAO_0000375 .
obo:XAO_0000286 a rdfs:Class ;
rdfs:label "late proximal tubule" ;
rdfs:comment "Portion of the pronephric tubule that is immediately posterior to the early proximal tubule and anterior to the early distal tubule." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_1000092 a rdfs:Class ;
rdfs:label "mature egg stage" ;
rdfs:comment "The developmental stage of the female gamete at which the gamete has reached maturity." ;
rdfs:subClassOf obo:XAO_1000082 .
obo:XAO_0004537 a rdfs:Class ;
rdfs:label "anterodorsal tegmental nucleus" ;
rdfs:comment "Nucleus located anterodorsally in the midbrain tegmentum." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0003205 a rdfs:Class ;
rdfs:label "chondrocyte" ;
rdfs:comment "Polymorphic cell type that forms cartilage." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003135 a rdfs:Class ;
rdfs:label "sclerotome of tail somite 14" ;
rdfs:comment "Compartment of tail somite 14 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004082 a rdfs:Class ;
rdfs:label "rhombomere R4" ;
rdfs:comment "The 4th segment of the developing hindbrain, between rhombomeres r3 and r5 and dorsal to branchial arch 2." ;
rdfs:subClassOf obo:XAO_0004079 .
obo:XAO_0004111 a rdfs:Class ;
rdfs:label "retinal cone cell" ;
rdfs:comment "One of the two photoreceptor cell types in the retina. In cones the photopigment is in invaginations of the cell membrane of the outer segment. Cones are less sensitive to light than rods, but they provide vision with higher spatial and temporal acuity, and the combination of signals from cones with different pigments allows color vision." ;
rdfs:subClassOf obo:XAO_0004110 .
obo:XAO_0005254 a rdfs:Class ;
rdfs:label "apical junction complex" ;
rdfs:comment "A functional unit located near the cell apex at the points of contact between epithelial cells, which in vertebrates is composed of the tight junction, the zonula adherens, and desmosomes. Functions in the regulation of cell polarity, tissue integrity and intercellular adhesion and permeability." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0003124 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 8" ;
rdfs:comment "Compartment of trunk somite 8 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0004297 a rdfs:Class ;
rdfs:label "forelimb zeugopod" ;
rdfs:comment "Limb segment that is the middle part of the forelimb (i.e. the radio-ulna and surrounding tissues)." ;
rdfs:subClassOf obo:XAO_0004264 .
obo:XAO_0005280 a rdfs:Class ;
rdfs:label "ventro-lateral region" ;
rdfs:comment "Anatomical region that overlaps the ventral and lateral regions of a body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0006038 a rdfs:Class ;
rdfs:label "non-myelinating Schwann cell" ;
rdfs:comment "A glial cell that ensheaths multiple small diameter axons in the peripheral nervous system. It is embedded among neurons (axons) with minimal extracellular spaces separating them from nerve cell membranes and has a basal lamina." ;
rdfs:subClassOf obo:XAO_0005044 .
obo:XAO_0003175 a rdfs:Class ;
rdfs:label "otic region" ;
rdfs:comment "Anatomical cluster that is a posterolateral part of the neurocranium and structurally supports the vestibuloauditory system." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000292 a rdfs:Class ;
rdfs:label "mesonephric nephron" ;
rdfs:comment "The structure that is the basic functional unit of the adult or mesonephric kidney, consisting of the vascular loop of the glomerulus, the capsule, the nephrocoel, the nephric duct, the nephrostome and the nephric tubule." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005200 a rdfs:Class ;
rdfs:label "anatomical axis" ;
rdfs:comment "A straight line through space, intersecting an anatomical entity. Axis directions are defined in terms of axes." ;
rdfs:subClassOf obo:XAO_0004003 .
obo:XAO_0003064 a rdfs:Class ;
rdfs:label "pelvic girdle" ;
rdfs:comment "Arched skeletal structure that supports the hindlimbs, begins to develop at NF stage 50, and is ossified by NF stage 66." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_1000081 a rdfs:Class ;
rdfs:label "unspecified stage" ;
rdfs:comment "Unspecified Xenopus developmental stage." ;
rdfs:subClassOf obo:XAO_1000000 .
obo:XAO_0005291 a rdfs:Class ;
rdfs:label "buccopharyngeal membrane" ;
rdfs:comment "A 1-2 cell layer membrane comprising cells from the stomodeum and underlying endodermal layer. Perforation of this structure creates an opening connecting the external and the digestive tube which is essential for oral cavity formation." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000151 a rdfs:Class ;
rdfs:label "mesonephric collecting duct" ;
rdfs:comment "Duct that connects to the mesonephric nephrons and collects filtrate." ;
rdfs:subClassOf obo:XAO_0004000 .
obo:XAO_0005272 a rdfs:Class ;
rdfs:label "obsolete left forelimb" .
obo:XAO_0000446 a rdfs:Class ;
rdfs:label "tongue" ;
rdfs:comment "The movable, muscular organ on the floor of the mouth." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004548 a rdfs:Class ;
rdfs:label "dorsal pallium" ;
rdfs:comment "Subdivision of thepallium that is located dorsally." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005211 a rdfs:Class ;
rdfs:label "right side" ;
rdfs:comment "The side of an organism that is right of the sagittal plane." ;
rdfs:subClassOf obo:XAO_0005205 .
obo:XAO_0000029 a rdfs:Class ;
rdfs:label "epidermis outer layer" ;
rdfs:comment "The outermost layer of the epidermis, the multilayered epithelium derived from the ectoderm." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0006049 a rdfs:Class ;
rdfs:label "microvillous-like cell" ;
rdfs:comment "A type of cell that has microvilli-like structures and is situated in the olfactory epithelium." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0000205 a rdfs:Class ;
rdfs:label "axial mesoderm" ;
rdfs:comment "A type of mesoderm that lies along the central axis, under the neural tube, and gives rise to the notochord." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004271 a rdfs:Class ;
rdfs:label "midbrain tegmentum" ;
rdfs:comment "Multi-tissue structure that is the ventral part of the midbrain." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004134 a rdfs:Class ;
rdfs:label "presumptive paraxial mesoderm" ;
rdfs:comment "Presumptive structure that will develop into paraxial mesoderm." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005027 a rdfs:Class ;
rdfs:label "forebrain-midbrain boundary" ;
rdfs:comment "The part of the brain that is the morphological boundary between the forebrain and midbrain." ;
rdfs:subClassOf obo:XAO_0004003 .
obo:XAO_0004280 a rdfs:Class ;
rdfs:label "dorsal fin skeleton" ;
rdfs:comment "Median fin skeleton located on the dorsal surface of the organism." ;
rdfs:subClassOf obo:XAO_0004282 .
obo:XAO_0003235 a rdfs:Class ;
rdfs:label "barrier cell" ;
rdfs:comment "A cell whose primary function is to prevent the transport of stuff across compartments." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004071 a rdfs:Class ;
rdfs:label "optic chiasm" ;
rdfs:comment "Decussation of cranial nerve II axons whereby some cross the midline and some remain ipsilateral." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005216 a rdfs:Class ;
rdfs:label "anterior region" ;
rdfs:comment "Anatomical region anteriorly located on the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_1000024 a rdfs:Class ;
rdfs:label "NF stage 14" ;
rdfs:comment "Nieuwkoop and Faber stage 14, corresponding to an embryo of age 16 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Neural plate stage. Cerebral part of neural plate bent downwards, with median elevation at rostral end of median groove. Initial elevation of neural folds, most pronounced in future nucal region. Blastopore always slit-shaped. Length: 1.5 - 1.6 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0005006 a rdfs:Class ;
rdfs:label "right" ;
rdfs:comment "Spatial concept pertaining to being located on or directed toward the side of the body to the east when facing north." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0004263 a rdfs:Class ;
rdfs:label "stylopod" ;
rdfs:comment "Limb segment that is the proximal part of the limb (i.e. the humerus of the forelimb, and the femur of the hindlimb, and surrounding tissues)." ;
rdfs:subClassOf obo:XAO_0004294 .
obo:XAO_0003049 a rdfs:Class ;
rdfs:label "adipose tissue" ;
rdfs:comment "Connective tissue in which fat is stored." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005205 a rdfs:Class ;
rdfs:label "anatomical side" ;
rdfs:comment "An anatomical region bounded by a plane perpendicular to an axis through the middle." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000140 a rdfs:Class ;
rdfs:label "urogenital system" ;
rdfs:comment "Anatomical system that has as its parts the organs concerned with the production and excretion of urine and those concerned with reproduction." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0000118 a rdfs:Class ;
rdfs:label "trachea" ;
rdfs:comment "An elongated tube that carries air to and from the lungs." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0004364 a rdfs:Class ;
rdfs:label "cornua trabecula" ;
rdfs:comment "Cartilaginous element that supports the anterior end of the nasal organ." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_1000074 a rdfs:Class ;
rdfs:label "NF stage 62" ;
rdfs:comment "Nieuwkoop and Faber stage 62, corresponding to a tadpole of age about 49 days at 22-24 Celsius and having the following external morphological criteria: Head still somewhat broader than cranial part of trunk. Tentacles short, straight. N. olfactorius shorter than diameter of bulbus olfactorius. Corner of mouth still in front of eye. Thymus gland somewhat protruding. 3rd arterial arch (\"larval aorta\") seen at distance of its own diameter in front of adult skin area of forelimb. Opening of operculum reduced to curved slit. Forelimb at level of middle of heart. Anterior border of adult skin area on abdomen entirely sharp, mostly nicked medially. Ventral fin disappeared from abdomen." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0006021 a rdfs:Class ;
rdfs:label "hepatic erythrocyte" ;
rdfs:comment "A red blood cell that is produced in the liver." ;
rdfs:subClassOf obo:XAO_0003260 .
obo:XAO_0004559 a rdfs:Class ;
rdfs:label "lateral forebrain bundle" ;
rdfs:comment "A fiber system that is formed by pallial and subpallial components that join in the caudal telencephalon. It proceeds caudally, piercing the optic tract, to the ventral part of the hypothalamus." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0003140 a rdfs:Class ;
rdfs:label "myotome of tail somite 16" ;
rdfs:comment "Compartment of tail somite 16 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0003142 a rdfs:Class ;
rdfs:label "myotome of tail somite 17" ;
rdfs:comment "Compartment of tail somite 17 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0004370 a rdfs:Class ;
rdfs:label "processus articularis palatoquadrati" ;
rdfs:comment "Cartilaginous element comprising the articular process that forms the jaw joint with the posterior end of Meckel's cartilage." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0003157 a rdfs:Class ;
rdfs:label "T-cell" ;
rdfs:comment "A type of lymphocyte whose defining characteristic is the expression of a T-cell receptor complex, and which develops in the thymus." ;
rdfs:subClassOf obo:XAO_0003155 .
obo:XAO_0003195 a rdfs:Class ;
rdfs:label "vestibuloauditory system" ;
rdfs:comment "The sensory system used for balance and hearing." ;
rdfs:subClassOf obo:XAO_0003194 .
obo:XAO_0004252 a rdfs:Class ;
rdfs:label "cutaneous femoral vein" ;
rdfs:comment "Vein that comes from the subcutaneous tissue of the hindlimb stylopod." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0003197 a rdfs:Class ;
rdfs:label "gustatory system" ;
rdfs:comment "The sensory system used for the sense of taste." ;
rdfs:subClassOf obo:XAO_0003194 .
obo:XAO_0005171 a rdfs:Class ;
rdfs:label "fin margin" ;
rdfs:comment "The outermost extent of a fin, comprising a region of high cell replication during anterior-posterior axis extension throughout the tadpole stages." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004521 a rdfs:Class ;
rdfs:label "coelom" ;
rdfs:comment "A fluid-filled cavity formed within the mesoderm of the embryo." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0004268 a rdfs:Class ;
rdfs:label "posterior lateral line" ;
rdfs:comment "A lateral line that extends from the ear in a posterior-ventral direction." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_0003252 a rdfs:Class ;
rdfs:label "keratin accumulating cell" ;
rdfs:comment "A cell that is specialized to accumulate keratins, a family of fibrous structural proteins." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005243 a rdfs:Class ;
rdfs:label "embryonic kidney" ;
rdfs:comment "A transient kidney that functions in embryos of amphibians (and fish) while the mesonephros (which continue to grow into adult kidneys) are developing and before they are fully functional." ;
rdfs:subClassOf obo:XAO_0003267 .
obo:XAO_0000331 a rdfs:Class ;
rdfs:label "mesonephric early proximal tubule" ;
rdfs:comment "Structure that is equivalent to the convoluted proximal tubule of metanephric nephrons." ;
rdfs:subClassOf obo:XAO_0000148 .
obo:XAO_0000211 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." ;
rdfs:subClassOf obo:XAO_0003047 .
obo:XAO_0003081 a rdfs:Class ;
rdfs:label "larynx" ;
rdfs:comment "Anatomical structure consisting of a narrowly triangular chamber supported by a series of semicircular cartilages in which part of the sound-production system is located." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0000266 a rdfs:Class ;
rdfs:label "retinal layer" ;
rdfs:comment "Inner layer of the developing optic vesicle, which contains retinal nerve cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005153 a rdfs:Class ;
rdfs:label "tympanic annulus" ;
rdfs:comment "The oval shaped cartilaginous ring that supports the cartilaginous tympanic disk." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0006009 a rdfs:Class ;
rdfs:label "outer segment cilium" ;
rdfs:comment "A modified non-motile cilium which functions as a light-detecting organelle in the retina. OS cilia have an extended membrane system which consists of arrayed membranous disks resembling a stack of coins. In rods/rod cells, these disks are discontinuous, being divided into lobules or \"incisures\", and are surrounded by a plasma membrane. In cones/cone cells, the disks and plasma membrane remain joined as one continuous membrane system and incisures are not present." ;
rdfs:subClassOf obo:XAO_0005008 .
obo:XAO_0004510 a rdfs:Class ;
rdfs:label "melanoblast" ;
rdfs:comment "Type of precursor cell from which melanophores develop." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004422 a rdfs:Class ;
rdfs:label "posterior lateral line ganglion" ;
rdfs:comment "Ganglion that develops from a cranial ectodermal placode and contains sensory neurons that innervate the posterior lateral line system." ;
rdfs:subClassOf obo:XAO_0004457 .
obo:XAO_0001018 a rdfs:Class ;
rdfs:label "anterior lymph sac" ;
rdfs:comment "The protrusion of mesenchymal tissue of the anterior cardinal vein which forms lymph sacs." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000177 a rdfs:Class ;
rdfs:label "nervous system" ;
rdfs:comment "Anatomical system that has as its parts the brain and spinal cord, nerves, ganglia, and parts of the receptor organs and that receives and interprets stimuli and transmits impulses to the effector organs." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0000324 a rdfs:Class ;
rdfs:label "hypobranchial placode" ;
rdfs:comment "A unique type of neurogenic placode, located ventral and caudal to the 2nd and 3rd pharyngeal pouches, which gives rise to small hypobranchial ganglia of yet unknown function." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004174 a rdfs:Class ;
rdfs:label "mesencephalic vein" ;
rdfs:comment "The major vein of the midbrain, which crosses the midbrain medially to meet its partner the mesencephalic artery." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_1000013 a rdfs:Class ;
rdfs:label "NF stage 3 (4-cell)" ;
rdfs:comment "Nieuwkoop and Faber stage 3, corresponding to an embryo of age 2 hr at 22-24 Celsius and having the following external morphological criteria: Advanced four-cell stage. Second cleavage groove has reached vegetal pole. In animal view dorsal blastomeres usually smaller than ventral ones; the latter darker than the former. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0005261 a rdfs:Class ;
rdfs:label "posterior tail" ;
rdfs:comment "The posterior part of the tail." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005164 a rdfs:Class ;
rdfs:label "alpha cell" ;
rdfs:comment "A type of endocrine cell in the pancreatic islets of the pancreas. They make up some of the islet cells synthesizing and secreting the peptide hormone glucagon, which elevates the glucose levels in the blood." ;
rdfs:subClassOf obo:XAO_0005135 .
obo:XAO_0005081 a rdfs:Class ;
rdfs:label "egg jelly" ;
rdfs:comment "A gelatinous layer that surrounds the oocyte and releases chemoattractants that activate and guide sperm to the oocyte." ;
rdfs:subClassOf obo:XAO_0003162 .
obo:XAO_0005012 a rdfs:Class ;
rdfs:label "kinetochore" ;
rdfs:comment "A multisubunit complex that is located at the centromeric region of DNA and provides an attachment point for the spindle microtubules." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0005225 a rdfs:Class ;
rdfs:label "otic capsule" ;
rdfs:comment "The capsule surrounding the inner ear components." ;
rdfs:subClassOf obo:XAO_0004017 .
obo:XAO_0000393 a rdfs:Class ;
rdfs:label "tail vein" ;
rdfs:comment "Vein in the tail returning blood from the tail to the heart." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0003129 a rdfs:Class ;
rdfs:label "sclerotome of trunk somite 11" ;
rdfs:comment "Compartment of trunk somite 11 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_0003090 a rdfs:Class ;
rdfs:label "oculomotor nerve" ;
rdfs:comment "Cranial nerve that largely consists of somatic efferent fibers which innervate four eye muscles (m rectus superior, m obliquus inferior, and mm rectus inferior and anterior)." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0003194 a rdfs:Class ;
rdfs:label "sensory system" ;
rdfs:comment "Part of the nervous system responsible for processing sensory information." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0001015 a rdfs:Class ;
rdfs:label "rectal diverticulum" ;
rdfs:comment "Paired outgrowths of the cloaca that link the pronephric ducts to the exterior of the organism." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004524 a rdfs:Class ;
rdfs:label "pharyngeal mesenchyme" ;
rdfs:comment "The undifferentiated, loose connective tissue of the pharyngeal region, that is derived mostly from mesoderm, and also contains ectodermally derived neural crest cells." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0004444 a rdfs:Class ;
rdfs:label "m. geniohyoideus primordium" ;
rdfs:comment "The presumptive cells of the geniohyoideus muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0003248 a rdfs:Class ;
rdfs:label "endodermal cell" ;
rdfs:comment "A cell of the inner of the three germ layers of the embryo." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000274 a rdfs:Class ;
rdfs:label "sperm entry point" ;
rdfs:comment "The point on the surface of the egg at which the sperm enters the egg." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0005301 a rdfs:Class ;
rdfs:label "ventral endoderm" ;
rdfs:comment "Ventral region of early embryonic endoderm." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000003 a rdfs:Class ;
rdfs:label "outer fin" ;
rdfs:comment "Part of the fin consisting of flattened epidermal cells elevated into a keel-like structure." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003216 a rdfs:Class ;
rdfs:label "retinal neural layer" ;
rdfs:comment "The layer of nerve cells in the retina." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0006024 a rdfs:Class ;
rdfs:label "dendritic cell" ;
rdfs:comment "A cell of hematopoietic origin, typically resident in particular tissues, specialized in the uptake, processing, and transport of antigens to lymph nodes for the purpose of stimulating an immune response via T cell activation." ;
rdfs:subClassOf obo:XAO_0003155 , obo:XAO_0004148 .
obo:XAO_0004497 a rdfs:Class ;
rdfs:label "ischium" ;
rdfs:comment "Any of the posterior and smaller bones of the pelvic girdle. The ischia appear at NF stage 53, grow toward each other at NF stage 55, fusing and beginning to ossify by NF stage 58/59." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0004503 a rdfs:Class ;
rdfs:label "periosteum" ;
rdfs:comment "A membrane that lines the outer surface of all bones, except at the joints of long bones. It consists of dense irregular connective tissue, and is divided into an outer fibrous layer and inner osteogenic layer. The fibrous layer contains fibroblasts, while the osteogenic layer contains progenitor cells that develop into osteoblasts, which are essential to the healing process." ;
rdfs:subClassOf obo:XAO_0001017 .
obo:XAO_0004171 a rdfs:Class ;
rdfs:label "vena capitis lateralis" ;
rdfs:comment "One of the major dorsal head veins that drains into the anterior cardinal vein, the other being the vena capitis medialis." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004285 a rdfs:Class ;
rdfs:label "pelvic appendage" ;
rdfs:comment "Appendage that is one of the posterior paired appendages (i.e. the hindlimbs)." ;
rdfs:subClassOf obo:XAO_0004283 .
obo:XAO_0005096 a rdfs:Class ;
rdfs:label "blastomere D1.1.1" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline in the first tier of blastomeres. It contributes to a variety of tissues and organs, including the cement gland, brain, retina, lens, cranial ganglia, otic vesicle, neural crest, spinal cord, somites, liver, gut and pharynx." ;
rdfs:subClassOf obo:XAO_0005113 .
obo:XAO_0005210 a rdfs:Class ;
rdfs:label "left side" ;
rdfs:comment "The side of an organism that is left of the sagittal plane." ;
rdfs:subClassOf obo:XAO_0005205 .
obo:XAO_0005034 a rdfs:Class ;
rdfs:label "neural progenitor cell" ;
rdfs:comment "A progenitor cell of the nervous system." ;
rdfs:subClassOf obo:XAO_0005033 .
obo:XAO_0003108 a rdfs:Class ;
rdfs:label "myotome of trunk somite 1" ;
rdfs:comment "Compartment of trunk somite 1 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_1000059 a rdfs:Class ;
rdfs:label "NF stage 47" ;
rdfs:comment "Nieuwkoop and Faber stage 47, corresponding to a tadpole of age 5 days, 12 hr at 22-24 Celsius and having the following external morphological criteria: Tentacles larger. Edge of operculum forming quarter of a circle. Xantophores forming opaque layer on abdomen. Intestine showing 2.5 to 3.5 revolutions. Hindlimb bud more distinct. Length: 12 - 15 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000216 a rdfs:Class ;
rdfs:label "obsolete cortex" .
obo:XAO_0000382 a rdfs:Class ;
rdfs:label "internal jugular vein" ;
rdfs:comment "The main dorsal head vein, it drains into the Duct of Cuvier, and collects blood from the dorsal jaw region, cerebral veins, the ophthalmic vein and the short pharyngeal vein. It forms loop around the olfactory bulb by NF stage 43." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004315 a rdfs:Class ;
rdfs:label "perichondrial cell" ;
rdfs:comment "A cell of the perichondrium, the fibrous membrane of connective tissue covering the surface of cartilage." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003119 a rdfs:Class ;
rdfs:label "myotome of trunk somite 7" ;
rdfs:comment "Compartment of trunk somite 7 that is a precursor of muscle." ;
rdfs:subClassOf obo:XAO_0000315 .
obo:XAO_0005146 a rdfs:Class ;
rdfs:label "oval window" ;
rdfs:comment "Entrance to the inner ear in the lateral wall of the otic capsule, which contains the footplate of the stapes." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000263 a rdfs:Class ;
rdfs:label "primary oogonium" ;
rdfs:comment "A germ cell that is a primordial oocyte in a female and that develops into secondary oogonia by mitotic division." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0003240 a rdfs:Class ;
rdfs:label "digestive enzyme secreting cell" ;
rdfs:comment "A type of cell, found in the digestive tract, that secrete enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0003168 a rdfs:Class ;
rdfs:label "obsolete hind mesopodium" .
obo:XAO_1000048 a rdfs:Class ;
rdfs:label "NF stage 33 and 34" ;
rdfs:comment "Nieuwkoop and Faber stage 33/34, corresponding to an embryo of age 1 day, 20 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Stomodeal invagination a shallow vertical groove. Dorsal part of eye more pigmented than ventral part; distinct melanophores in dorsal part. Melanophores appearing dorsally on the head and laterally in a row extending from just below the pronephros backwards. Length of tail bud about twice its breadth. Beginning of heart beat. Length: 4.7 - 5.3 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000010 a rdfs:Class ;
rdfs:label "brain" ;
rdfs:comment "Organ that is the center of the nervous system. It is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing, balance, taste, and smell. It appears when the neural tube segregates in forebrain, midbrain, and hindbrain at NF stage 22. The general pattern of the brain has been mainly established at NF stage 28. Yolky material is consumed and the fibre tracts and later the commissures develop. In general all of its parts are well developed at NF stage 53 and later development consists mainly of growth and some further cytological differentiation. In the period of metamorphosis only topographical changes take place." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0005005 a rdfs:Class ;
rdfs:label "left" ;
rdfs:comment "Spatial concept pertaining to being located on or directed toward the side of the body to the west when facing north." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0005290 a rdfs:Class ;
rdfs:label "Roux spot" ;
rdfs:comment "The unpigmented maturation spot which indicates germinal vesicle breakdown and thus maturation of an oocyte." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000277 a rdfs:Class ;
rdfs:label "choana" ;
rdfs:comment "The internal nasal passages, aperture or cavity in the roof of the buccopharynx." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0005028 a rdfs:Class ;
rdfs:label "ventricular layer of the optic tectum" ;
rdfs:comment "Layer of the optic tectum that contains radial glial and other non-neuronal cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000148 a rdfs:Class ;
rdfs:label "mesonephric tubule" ;
rdfs:comment "Any of the excretory units of the mesonephros, which connect to the mesonephric collecting duct." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000100 a rdfs:Class ;
rdfs:label "cardiovascular system" ;
rdfs:comment "Anatomical system that has as its parts the heart and blood vessels." ;
rdfs:subClassOf obo:XAO_0003002 .
obo:XAO_0004598 a rdfs:Class ;
rdfs:label "prosomere" ;
rdfs:comment "A neuromere that is part of the presumptive forebrain." ;
rdfs:subClassOf obo:XAO_0004597 .
obo:XAO_0005273 a rdfs:Class ;
rdfs:label "obsolete right forelimb" .
obo:XAO_0004245 a rdfs:Class ;
rdfs:label "maxillary artery" ;
rdfs:comment "A type of artery that supplies the deep structures of the facial region. It branches from the external carotid artery." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_1000006 a rdfs:Class ;
rdfs:label "neurula stage" ;
rdfs:comment "Embryonic stage during which the future nervous system appears as a thickened plate in dorsal ectoderm, the plate then rolling up at its sides to form a tube; comprising Nieuwkoop and Faber stages 13 to 21." ;
rdfs:subClassOf obo:XAO_1000012 .
obo:XAO_0000137 a rdfs:Class ;
rdfs:label "exocrine pancreas" ;
rdfs:comment "Pancreatic tissue composed of acinar epithelial cells and ductal epithelium that manufacture the proteolytic enzymes and bicarbonate required for digestion." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005306 a rdfs:Class ;
rdfs:label "anterior endomesoderm" ;
rdfs:comment "Anterior region of the developing endomesoderm." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000129 a rdfs:Class ;
rdfs:label "intestine" ;
rdfs:comment "Portion of the alimentary canal bounded anteriorly by the pyloric sphincter and posteriorly by the cloacal sphincter." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003165 .
obo:XAO_0005039 a rdfs:Class ;
rdfs:label "cytoplasm" ;
rdfs:comment "All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004141 a rdfs:Class ;
rdfs:label "spiral septum" ;
rdfs:comment "The thin, spiral-shaped membranous structure within the ventricular outflow tract of the heart." ;
rdfs:subClassOf obo:XAO_0005422 .
obo:XAO_0005204 a rdfs:Class ;
rdfs:label "left-right axis" ;
rdfs:comment "An axis that bisects an organism from left to right sides of body, through a sagittal plane." ;
rdfs:subClassOf obo:XAO_0005200 .
obo:XAO_0005087 a rdfs:Class ;
rdfs:label "blastomere V2" ;
rdfs:comment "Blastomere which lies adjacent to the prospective ventral midline of the vegetal hemisphere at the eight-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0000453 a rdfs:Class ;
rdfs:label "branchial arch 4" ;
rdfs:comment "The fourth in a series of paired bars in the wall of the pharynx, within which are formed the fourth aortic arch and the cartilage bar of the visceral skeleton; forms and supports the gills." ;
rdfs:subClassOf obo:XAO_0000099 .
obo:XAO_0003179 a rdfs:Class ;
rdfs:label "ventral hyoid arch skeleton" ;
rdfs:comment "Skeletal subdivision comprising the ventral skeletal elements of the hyoid arch." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005284 a rdfs:Class ;
rdfs:label "sarcomere" ;
rdfs:comment "The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004238 a rdfs:Class ;
rdfs:label "femur rudiment" ;
rdfs:comment "A cartilaginous element that is the primordium or commencement of a femur." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000061 a rdfs:Class ;
rdfs:label "obsolete pronephric capsule" .
obo:XAO_0004022 a rdfs:Class ;
rdfs:label "cartilaginous condensation" ;
rdfs:comment "Cell condensation that is an aggregation of mesenchymal cells that are committed to differentiate into chondroblasts and chondrocytes." ;
rdfs:subClassOf obo:XAO_0004021 .
obo:XAO_0004310 a rdfs:Class ;
rdfs:label "stapes" ;
rdfs:comment "Bone of the ear that is connected to the tympanic membrane via the extrastapes. This structure is the amphibian ear ossicle, also known as the columella. It extends between extrastapes cartilage and the oval window. The extrastapes forms a cartilaginous tympanic disk." ;
rdfs:subClassOf obo:XAO_0000214 , obo:XAO_0004013 .
obo:XAO_0005139 a rdfs:Class ;
rdfs:label "multiciliated cell" ;
rdfs:comment "A ciliated cell that has more than one cilium." ;
rdfs:subClassOf obo:XAO_0005017 .
obo:XAO_0005053 a rdfs:Class ;
rdfs:label "nucleus reticularis superior" ;
rdfs:comment "Superior nucleus of the reticular nucleus of the brain stem." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_0003209 a rdfs:Class ;
rdfs:label "radio-ulna" ;
rdfs:comment "Either of the paired, long bones of endochondral origin formed by the fusion of the radius and ulna." ;
rdfs:subClassOf obo:XAO_0004018 .
obo:XAO_0004182 a rdfs:Class ;
rdfs:label "pericardium" ;
rdfs:comment "The outer membrane/wall of the developing heart, surrounding the myocardium. Peritoneum that surrounds the heart." ;
rdfs:subClassOf obo:XAO_0000139 .
obo:XAO_0005258 a rdfs:Class ;
rdfs:label "obsolete left inner ear" .
obo:XAO_0005317 a rdfs:Class ;
rdfs:label "neuron projection" ;
rdfs:comment "A prolongation or process extending from a nerve cell." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000475 a rdfs:Class ;
rdfs:label "optic stalk" ;
rdfs:comment "Neural tissue comprising the proximal part of either of the optic vesicles as they project towards the sides of the head; it remains narrow and constitutes the optic stalk (the peripheral part of each expands to form a hollow bulb)." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004609 a rdfs:Class ;
rdfs:label "neural nucleus" ;
rdfs:comment "A spatially aggregated collection of nerve cell bodies in the CNS, consisting of one or more subpopulations that share cell type, chemical phenotype, and connections, and including nearby cells that share the same cell type, chemical phenotype, and connections." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0005504 a rdfs:Class ;
rdfs:label "abdominal wall" ;
rdfs:comment "Structure comprising the tissues that surround the organs that are present within the abdominal cavity. The abdominal wall tissue is composed of layers of fat, parietal peritoneum, fascia, and muscles." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004102 a rdfs:Class ;
rdfs:label "pre-chordal neural plate border" ;
rdfs:comment "The portion of the neural plate border that is anterior to the mid-hindbrain junction." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005023 a rdfs:Class ;
rdfs:label "granular gland" ;
rdfs:comment "A surface structure principally responsible for the production of noxious or toxic secretion with an effect on numerous species of vertebrates. The glands are almost uniformly distributed, on both ventral and dorsal skin." ;
rdfs:subClassOf obo:XAO_0005071 .
obo:XAO_0003020 a rdfs:Class ;
rdfs:label "secondary spermatogonium" ;
rdfs:comment "A type of germ cell that results from the mitotic division of a primary spermatogonium." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0005098 a rdfs:Class ;
rdfs:label "blastomere D1.2.1" ;
rdfs:comment "Blastomere which lies lateral to blastomere D1.1.1 and is in the first tier of blastomeres. It contributes to a variety of tissues and organs, including the cement gland, head epidermis, olfactory epithelium, lens, cranial ganglia, otic vesicle, epidermis, tail fin, neural crest, retina, hindbrain, spinal cord, pharyngeal arches, caudal notochord and hindgut." ;
rdfs:subClassOf obo:XAO_0005113 .
obo:XAO_1000020 a rdfs:Class ;
rdfs:label "NF stage 10" ;
rdfs:comment "Nieuwkoop and Faber stage 10, corresponding to an embryo of age 9 hr at 22-24 Celsius and having the following external morphological criteria: Initial gastrula stage. First indication of blastopore only by pigment concentration. No formation of groove. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000425 a rdfs:Class ;
rdfs:label "tail somite 17" ;
rdfs:comment "The 15th somite located posterior to the head. This somite is resorbed at metamorphosis." ;
rdfs:subClassOf obo:XAO_0003143 .
obo:XAO_0000174 a rdfs:Class ;
rdfs:label "skeletal muscle" ;
rdfs:comment "A type of muscle used to create movement, by applying force to bones and joints. Usually attached to bones by tendons." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_0004087 a rdfs:Class ;
rdfs:label "neural fold" ;
rdfs:comment "One of the two edges of the neural groove." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004052 a rdfs:Class ;
rdfs:label "pre-dentine" ;
rdfs:comment "Odontogenic tissue that is collagen-rich and characteristic of vertebrate teeth and tooth-like structures (e.g., odontodes) deposited by preodontoblasts and odontoblasts that are typically excluded from the matrix." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_0000028 a rdfs:Class ;
rdfs:label "epidermis" ;
rdfs:comment "The outer epithelial layer of the external integument of the body that is derived from the primative or embryonic ectoderm." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000241 a rdfs:Class ;
rdfs:label "posterior cardinal vein" ;
rdfs:comment "Vein that returns blood from the trunk and drains into the duct of Cuvier via the pronephric sinus." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0004452 a rdfs:Class ;
rdfs:label "m. rectus superior primordium" ;
rdfs:comment "The presumptive cells of the rectus superior muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0003075 a rdfs:Class ;
rdfs:label "cranium" ;
rdfs:comment "Skeletal system that is part of the head, including the splanchnocranium, chondrocranium, and dermatocranium." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000155 a rdfs:Class ;
rdfs:label "male genitalia" ;
rdfs:comment "Anatomical system comprising the organs of the male reproductive system." ;
rdfs:subClassOf obo:XAO_0000142 .
obo:XAO_0003224 a rdfs:Class ;
rdfs:label "outer limiting membrane" ;
rdfs:comment "A thin fenestrated layer of the pars nervosa retinae adjacent to the outer nuclear layer and through which extend the visual rods and cones." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004433 a rdfs:Class ;
rdfs:label "m. interhyoideus primordium" ;
rdfs:comment "The presumptive cells of the interhyoideus muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0000036 a rdfs:Class ;
rdfs:label "animal cap" ;
rdfs:comment "Ectodermal roof of the blastocoel." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0005157 a rdfs:Class ;
rdfs:label "antrum" ;
rdfs:comment "The section of the stomach which lies between the stomach body and pylorus, and that contains gastrin-producing G cells, which stimulate acid production, and the luminal pH-sensitive population of somatostatin-producing D cells." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_1000030 a rdfs:Class ;
rdfs:label "NF stage 10.25" ;
rdfs:comment "Nieuwkoop and Faber stage 10.25, corresponding to an embryo of age 10 hr at 22-24 Celsius and having the following external morphological criteria: Early gastrula stage. First formation of dorsal blastopore groove; the groove is still straight. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004463 a rdfs:Class ;
rdfs:label "pharyngeal endoderm" ;
rdfs:comment "Embryonic endoderm that evaginates to form the paired pharyngeal pouches." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0003153 a rdfs:Class ;
rdfs:label "larval immune system" ;
rdfs:comment "The immune system of a postembryonic, hatched or immature tadpole, prior to metamorphosis." ;
rdfs:subClassOf obo:XAO_0003152 .
obo:XAO_0005236 a rdfs:Class ;
rdfs:label "intestinal stem cell" ;
rdfs:comment "Type of adult stem cells that are induced by thyroid hormone (TH) and, during intestinal remodeling during metamorphosis, newly generate the absorptive epithelium." ;
rdfs:subClassOf obo:XAO_0003054 .
obo:XAO_0000144 a rdfs:Class ;
rdfs:label "ureter" ;
rdfs:comment "Anatomical structure consisting of a long narrow duct that carries urine from the kidney to the urinary bladder." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000014 a rdfs:Class ;
rdfs:label "midbrain" ;
rdfs:comment "Middle part of the brain composed of the optic tectum and penducular region." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004326 a rdfs:Class ;
rdfs:label "hypobranchial head muscle" ;
rdfs:comment "Straplike muscle that arises from elements of the pectoral girdle and passes to the hyoid bone and laryngeal cartilages." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0003259 a rdfs:Class ;
rdfs:label "neuromast support cell" ;
rdfs:comment "A non-sensory cell of the neuromast that extends between the sensory hair cells from the basement membrane to the apical surface; neuromast support cells are surrounded by neuromast mantle cells." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0000025 a rdfs:Class ;
rdfs:label "hyoid crest" ;
rdfs:comment "The second most anterior of the migrating cranial neural crests streams, it lays between the mandibular and anterior branchial crest streams." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006013 a rdfs:Class ;
rdfs:label "pterinosome" ;
rdfs:comment "Pteridine-containing subcellular compartment of xanthophores." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0005262 a rdfs:Class ;
rdfs:label "anterior dorsal fin" ;
rdfs:comment "The anterior part of the dorsal fin." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004513 a rdfs:Class ;
rdfs:label "foregut endoderm" ;
rdfs:comment "The endoderm cells that are fated to become the foregut." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0005076 a rdfs:Class ;
rdfs:label "anterior entopeduncular region" ;
rdfs:comment "A defined region within the ventral telencephalon that gives rise to GABAergic and cholinergic cortical interneurons and is also a source of early-born oligodendrocytes in the telencephalon." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000323 a rdfs:Class ;
rdfs:label "profundus ganglion" ;
rdfs:comment "Type of ganglion that is separate distally from the trigeminal ganglia; they become fused at their proximal end as they condense." ;
rdfs:subClassOf obo:XAO_0000209 .
obo:XAO_0003068 a rdfs:Class ;
rdfs:label "obsolete fore mesopodium" .
obo:XAO_0005312 a rdfs:Class ;
rdfs:label "M band" ;
rdfs:comment "The midline of aligned thick filaments in a sarcomere; location of specific proteins that link thick filaments. Depending on muscle type the M band consists of different numbers of M lines." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_1000085 a rdfs:Class ;
rdfs:label "oocyte stage III" ;
rdfs:comment "The mid-vitellogenic stage of the developing female gamete." ;
rdfs:subClassOf obo:XAO_1000082 .
obo:XAO_0004607 a rdfs:Class ;
rdfs:label "lateral ventricle" ;
rdfs:comment "Either of the two brain ventricles that are bilateral (left and right, one for each hemisphere)." ;
rdfs:subClassOf obo:XAO_0004602 .
obo:XAO_0005215 a rdfs:Class ;
rdfs:label "basal region" ;
rdfs:comment "Anatomical region located basally on the body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0005199 a rdfs:Class ;
rdfs:label "peripheral ganglion" ;
rdfs:comment "Type of ganglia in the trunk region that connect the central nervous system with organs, muscles, blood vessels and glands, and are exclusively derived from trunk neural crest cells." ;
rdfs:subClassOf obo:XAO_0000209 .
obo:XAO_0004475 a rdfs:Class ;
rdfs:label "myocyte" ;
rdfs:comment "A mature contractile cell, which has as part of its cytoplasm myofibrils organized in various patterns. Found in muscle tissue, myocytes are long, tubular cells that arise developmentally from myoblasts to form muscle. There are specialized forms: cardiac, skeletal, and smooth muscle myocytes, with various properties." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005128 a rdfs:Class ;
rdfs:label "posterior foregut" ;
rdfs:comment "The posterior part of the foregut." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004130 a rdfs:Class ;
rdfs:label "auditory hair cell" ;
rdfs:comment "A mechanoreceptor cell located in the inner ear that is sensitive to auditory stimuli. The accessory sensory structures are arranged so that appropriate stimuli cause movement of the hair-like projections (stereocilia and kinocilia) which relay the information centrally in the nervous system." ;
rdfs:subClassOf obo:XAO_0004138 .
obo:XAO_0003084 a rdfs:Class ;
rdfs:label "lower jaw" ;
rdfs:comment "Anatomical cluster consisting of the ventral portion of the first pharyngeal arch." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004011 a rdfs:Class ;
rdfs:label "axial skeleton" ;
rdfs:comment "Anatomical cluster of the central body axis including the cranium, vertebrae, notochord, ribs, and sternum." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0004007 a rdfs:Class ;
rdfs:label "unilaminar epithelium" ;
rdfs:comment "Epithelium that consists of a single layer of epithelial cells." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0000173 a rdfs:Class ;
rdfs:label "tendon" ;
rdfs:comment "A fibrous, strong, connective tissue that connects muscle to bone." ;
rdfs:subClassOf obo:XAO_0004030 .
obo:XAO_0005042 a rdfs:Class ;
rdfs:label "posterior semicircular canal" ;
rdfs:comment "The posterior of the two vertically oriented semicircular canals, which are situated at right angles to each other." ;
rdfs:subClassOf obo:XAO_0000198 .
obo:XAO_0004193 a rdfs:Class ;
rdfs:label "ossicle" ;
rdfs:comment "Skeletal element that is often isolated, small, and variable in composition." ;
rdfs:subClassOf obo:XAO_0004012 .
obo:XAO_0000244 a rdfs:Class ;
rdfs:label "cloaca" ;
rdfs:comment "The posterior opening that serves as the common opening for the intestinal, reproductive, and urinary tracts, closed by the cloacal sphincter." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000044 a rdfs:Class ;
rdfs:label "neuroectoderm inner layer" ;
rdfs:comment "Deep neuroectoderm layer consisting of densely packed, cylindrical, unpigmented cells." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000095 a rdfs:Class ;
rdfs:label "lateral line system" ;
rdfs:comment "Sensory system that has as it parts the sense organs that detect vibrations carried through water, develops during late tailbud stage, and persists in the adult bearing elaborate dorsal and ventral components. It develops from a specialized series of dorsolateral ectodermal placodes named lateral line placodes." ;
rdfs:subClassOf obo:XAO_0003194 .
obo:XAO_0005247 a rdfs:Class ;
rdfs:label "hindgut endoderm" ;
rdfs:comment "Endoderm that is part of the hindgut." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005065 a rdfs:Class ;
rdfs:label "sciatic nerve" ;
rdfs:comment "Nerve that provides the connection to the nervous system for nearly the whole of the skin of the leg, the muscles of the back of the thigh, and those of the leg and foot." ;
rdfs:subClassOf obo:XAO_0003047 .
obo:XAO_0006002 a rdfs:Class ;
rdfs:label "lateral plate mesoderm, right side" ;
rdfs:comment "Lateral plate mesoderm that is located on the right side of the body." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_1000037 a rdfs:Class ;
rdfs:label "NF stage 21" ;
rdfs:comment "Nieuwkoop and Faber stage 21, corresponding to an embryo of age 22 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Suture of neural tube completely closed. Delimitation of frontal field by pigment lines. Primary eye vesicles showing through in the form of two separate, obliquely placed oval spots; beginning of protrusion of eyes. Lateral outline of embryo just becoming concave, ventral outline flat. Length: 1.9 - 2.0 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000375 a rdfs:Class ;
rdfs:label "lymph vessel" ;
rdfs:comment "A vessel that contains or conveys lymph." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000409 a rdfs:Class ;
rdfs:label "trunk somite 4" ;
rdfs:comment "The 2nd somite located posterior to the head." ;
rdfs:subClassOf obo:XAO_0000314 .
obo:XAO_0005323 a rdfs:Class ;
rdfs:label "lymphoblast" ;
rdfs:comment "An immature cell which typically differentiates to form a mature lymphocyte." ;
rdfs:subClassOf obo:XAO_0003055 .
obo:XAO_0003093 a rdfs:Class ;
rdfs:label "abducens nerve" ;
rdfs:comment "Cranial nerve that runs to the eye muscles." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0003231 a rdfs:Class ;
rdfs:label "absorptive cell" ;
rdfs:comment "A cell that takes up stuff and metabolizes it." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004076 a rdfs:Class ;
rdfs:label "intersomitic tendon" ;
rdfs:comment "A tendon located in the intersomitic region." ;
rdfs:subClassOf obo:XAO_0000173 .
obo:XAO_0005085 a rdfs:Class ;
rdfs:label "blastomere D2" ;
rdfs:comment "Blastomere which lies adjacent to the prospective dorsal midline of the vegetal hemisphere at the eight-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:XAO_0005295 a rdfs:Class ;
rdfs:label "frontal nerve" ;
rdfs:comment "Cephalic nerve that is the largest branch of the ophthalmic division of the trigeminal nerve." ;
rdfs:subClassOf obo:XAO_0005309 .
obo:XAO_0005016 a rdfs:Class ;
rdfs:label "dendrite" ;
rdfs:comment "A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body." ;
rdfs:subClassOf obo:XAO_0005317 .
obo:XAO_0004063 a rdfs:Class ;
rdfs:label "dorsal fin" ;
rdfs:comment "The unsupported flaps of epidermis-covered, loose connective tissue extending the length of the dorsal tail muscle, originating at or near the tail-body junction, and extending posteriorly to slightly beyond the tip of the notochord and tail musculature." ;
rdfs:subClassOf obo:XAO_0000002 .
obo:XAO_0004220 a rdfs:Class ;
rdfs:label "anteroventral lateral line placode" ;
rdfs:comment "Lateral line placode that gives rise to the anteroventral lateral line nerve." ;
rdfs:subClassOf obo:XAO_0000440 .
obo:XAO_0003190 a rdfs:Class ;
rdfs:label "anatomical space" ;
rdfs:comment "Non-material anatomical entity of three dimensions, that is generated by morphogenetic or other physiologic processes; is surrounded by one or more anatomical structures; contains one or more organism substances or anatomical structures." ;
rdfs:subClassOf obo:XAO_0000000 .
obo:XAO_0004037 a rdfs:Class ;
rdfs:label "non-mineralized avascular GAG-rich matrix" ;
rdfs:comment "Avascular GAG-rich matrix that is not mineralized." ;
rdfs:subClassOf obo:XAO_0004033 .
obo:XAO_0000227 a rdfs:Class ;
rdfs:label "eye primordium" ;
rdfs:comment "First trace of the future visual apparatus. The eye primordia forming antero-lateral evaginations of the closing neural tube are originally massive formations into which only a slit-shaped extension of the neural groove penetrates at NF stage 18. At NF stage 19 they clearly segregate from the anterior portion of the neural tube." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0004249 a rdfs:Class ;
rdfs:label "renal artery" ;
rdfs:comment "Artery that supplies blood via branches to the gonads, oviducts, and kidneys." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0005161 a rdfs:Class ;
rdfs:label "prehallux" ;
rdfs:comment "A tiny skeletal element adjacent to the anterior-most digit in the autopod in the developing hindlimb (i.e., hindlimb digit 5), possibly representing a vestigal 6th digit in Xenopus." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0004066 a rdfs:Class ;
rdfs:label "vegetal endoderm" ;
rdfs:comment "Portion of the cleavage-stage embryo below the equator and consisting of prospective endodermal cells." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000017 a rdfs:Class ;
rdfs:label "hypophysis" ;
rdfs:comment "An endocrine gland, located ventral to the diencephalon, that secretes hormones that regulate many other glands." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0003183 a rdfs:Class ;
rdfs:label "branchial arch skeleton 3" ;
rdfs:comment "Skeletal and cartilaginous elements of the third branchial or pharyngeal arch." ;
rdfs:subClassOf obo:XAO_0003180 .
obo:XAO_0005269 a rdfs:Class ;
rdfs:label "regenerating pelvic girdle" ;
rdfs:comment "Pelvic girdle tissue that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0000397 a rdfs:Class ;
rdfs:label "sclerotome" ;
rdfs:comment "Somitic compartment that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0003040 .
a rdfs:Class ;
rdfs:comment "An unconstrained type or object" .
obo:XAO_0005102 a rdfs:Class ;
rdfs:label "blastomere D2.2.1" ;
rdfs:comment "Blastomere which lies lateral to blastomere D2.1.1 in the fourth tier of blastomeres. It contributes cells to the cranial ganglia, neural crest, spinal cord, fin epidermis, branchial mesoderm, heart, somites, pharynx, foregut, liver, and hindgut." ;
rdfs:subClassOf obo:XAO_0005112 .
obo:XAO_0005251 a rdfs:Class ;
rdfs:label "anterior hindgut endoderm" ;
rdfs:comment "Anterior part of the hindgut endoderm." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000310 a rdfs:Class ;
rdfs:label "anterior neural fold" ;
rdfs:comment "The anterior U-shaped portion of the neural folds, the two longitudinal dorsal ridges, caused by a folding up of the ectoderm, that make their appearance on either side of the middle line of the early neural embryo." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004409 a rdfs:Class ;
rdfs:label "posterior-proximal mesenchyme" ;
rdfs:comment "Mesenchyme that occupies the posterior proximal region of a limb bud." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0005424 a rdfs:Class ;
rdfs:label "posterior notochord" ;
rdfs:comment "The posterior portion of the notochord." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004528 a rdfs:Class ;
rdfs:label "tail somite 18" ;
rdfs:comment "The 16th somite located posterior to the head. This somite is resorbed at metamorphosis." ;
rdfs:subClassOf obo:XAO_0003143 .
obo:XAO_0005221 a rdfs:Class ;
rdfs:label "antero-dorsal region" ;
rdfs:comment "Anatomical region that overlaps the anterior and dorsal regions of a body or body part." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0004119 a rdfs:Class ;
rdfs:label "stage VI oocyte" ;
rdfs:comment "A female gamete that is at the fully grown stage." ;
rdfs:subClassOf obo:XAO_0000256 .
obo:XAO_0000270 a rdfs:Class ;
rdfs:label "sensorial layer of neurectoderm" ;
rdfs:comment "Deep layer of the neural ectoderm, which undergoes early neuronal differentiation." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006050 a rdfs:Class ;
rdfs:label "crypt cell" ;
rdfs:comment "A stem cell that is located in the crypt of Liberkuhn, the tubular intestinal glands found in the mucosal membranes." ;
rdfs:subClassOf obo:XAO_0003054 .
obo:XAO_0004294 a rdfs:Class ;
rdfs:label "limb segment" ;
rdfs:comment "A major subdivision of a limb." ;
rdfs:subClassOf obo:XAO_0003013 .
obo:XAO_0003150 a rdfs:Class ;
rdfs:label "gamete" ;
rdfs:comment "A mature male or female germ cell." ;
rdfs:subClassOf obo:XAO_0000111 .
obo:XAO_0000386 a rdfs:Class ;
rdfs:label "interrenal vein" ;
rdfs:comment "Vein formed from fusion of the posterior cardinal veins and that extends caudally." ;
rdfs:subClassOf obo:XAO_0000115 .
obo:XAO_0000414 a rdfs:Class ;
rdfs:label "sclerotomal mesenchyme" ;
rdfs:comment "Mesenchymal cells that break from the sclerotome. Such cells migrate from the somite to surround the notochord." ;
rdfs:subClassOf obo:XAO_0003046 .
obo:XAO_0004156 a rdfs:Class ;
rdfs:label "hyaloid vein" ;
rdfs:comment "Vein internal to the eye." ;
rdfs:subClassOf obo:XAO_0004154 .
obo:XAO_0005063 a rdfs:Class ;
rdfs:label "external coil of the small intestine" ;
rdfs:comment "Part of the double coil of the small intestine, consisting of anti-clockwise loops of intestine proximal to the internal coil." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_1000063 a rdfs:Class ;
rdfs:label "NF stage 51" ;
rdfs:comment "Nieuwkoop and Faber stage 51, corresponding to a tadpole of age about 17 days at 22-24 Celsius and having the following external morphological criteria: Tentacles much longer. Forelimb bud oval-shaped in lateral aspect. Hindlimb bud conical in shape, its length about 1.5 times its breadth; melanophores appearing on it. Length: 28 - 36 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004621 a rdfs:Class ;
rdfs:label "epidermal cell" ;
rdfs:comment "An epithelial cell that is part of the epidermis." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0003046 a rdfs:Class ;
rdfs:label "mesenchyme" ;
rdfs:comment "Portion of embryonic tissue consisting of loosely organized, undifferentiated mesodermal or neural crest derived cells, that have specific properties (they are migratory, have no polarity). Mesenchyme cells are incorporated into a wide variety of structures including connective tissue, blood, bone and cartilage as development continues." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004199 a rdfs:Class ;
rdfs:label "enameloid" ;
rdfs:comment "Skeletal tissue that is hypermineralized and aprismatic and deposited by a combination of ameloblasts and odontoblasts that are excluded from the matrix. It develops from pre-enameloid tissue." ;
rdfs:subClassOf obo:XAO_0004046 .
obo:XAO_0000133 a rdfs:Class ;
rdfs:label "liver" ;
rdfs:comment "Organ that secretes bile and participates in formation of certain blood proteins. The liver is the largest internal organ, primarily consisting of hepatocytes, and has a wider variety of functions than any other organs in the body. The hepatocyte is a polarized epithelial cell that exhibits both endocrine and exocrine properties. The biliary epithelial cells (cholangiocytes), sinusoidal endothelial cells, hepatic stellate cells (Ito cells), Kupffer cells, and pit cells (liver-specific natural killer cells) represent the majority of non-hepatocyte cell types in the liver. During embryogenesis, the liver is generated in the ventral foregut endoderm." ;
rdfs:subClassOf obo:XAO_0003034 , obo:XAO_0003164 .
obo:XAO_0005193 a rdfs:Class ;
rdfs:label "lateral nasal prominence" ;
rdfs:comment "The lateral area of the two branches of a horseshoe-shaped mesenchymal swelling in the future nasal region of the embryo. It separates the olfactory pit from the developing eye." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0004308 a rdfs:Class ;
rdfs:label "glial cell" ;
rdfs:comment "Any of the non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for neurons in the brain, and for neurons in other parts of the nervous system such as in the autonomic nervous system. Neural crest derived." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005009 a rdfs:Class ;
rdfs:label "mitotic spindle" ;
rdfs:comment "Array of microtubules and associated molecules that forms between opposite poles of a cell during mitosis or meiosis and serves to move the duplicated chromosomes apart." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0004578 a rdfs:Class ;
rdfs:label "pallidum" ;
rdfs:comment "Major component of the basal ganglia that is part of the telencephalon and has close functional ties with the subthalamus." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0004026 a rdfs:Class ;
rdfs:label "endoskeleton" ;
rdfs:comment "Skeletal system that undergoes indirect development and includes elements that develop as a replacement or substitution of other elements or tissues." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0003057 a rdfs:Class ;
rdfs:label "posterior" ;
rdfs:comment "Spatial concept denoting the back surface of the body." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0005150 a rdfs:Class ;
rdfs:label "m. levator scapulae inferior" ;
rdfs:comment "Inferior aspect of the cranial muscle that passes between the otic capsule and the scapula. It originates on the otic capsule just caudal to the oval window." ;
rdfs:subClassOf obo:XAO_0004322 .
obo:XAO_0000196 a rdfs:Class ;
rdfs:label "sacculus" ;
rdfs:comment "A major structure of the inner ear, ventral to the utriculus. Two small pouches extend from it: the papilla basilaris, and the papilla amphibiorum. The sacculus functions in the detection of sound." ;
rdfs:subClassOf obo:XAO_0000214 .
obo:XAO_0000006 a rdfs:Class ;
rdfs:label "otic vesicle" ;
rdfs:comment "The saccular invagination of ectoderm from which the vertebrate inner ear develops." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0005240 a rdfs:Class ;
rdfs:label "regenerating lens" ;
rdfs:comment "Tissue of the lens that is re-growing after damage or amputation." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0004260 a rdfs:Class ;
rdfs:label "pharyngeal pouch" ;
rdfs:comment "Any of the outpocketings of pharyngeal endoderm that interdigitate with the neural crest derived pharyngeal arches. The pouches later fuse with the surface ectoderm to form the gill slits." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0005135 a rdfs:Class ;
rdfs:label "enteroendocrine cell" ;
rdfs:comment "An endocrine cell that is located in the epithelium of the gastrointestinal tract or in the pancreas." ;
rdfs:subClassOf obo:XAO_0003247 .
obo:XAO_0004091 a rdfs:Class ;
rdfs:label "non-neural ectoderm" ;
rdfs:comment "The portion of the embryonic ectoderm, including the preplacodal ectoderm, that does not give rise to nervous tissue." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0004392 a rdfs:Class ;
rdfs:label "goblet cell" ;
rdfs:comment "A type of mucus surface cell in the tadpole." ;
rdfs:subClassOf obo:XAO_0003249 .
obo:XAO_0000457 a rdfs:Class ;
rdfs:label "pyloric sphincter" ;
rdfs:comment "Sphincter muscle that is part of the pyloric region of the stomach." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004418 a rdfs:Class ;
rdfs:label "claw of hindlimb digit 2" ;
rdfs:comment "Claw located at the end of the 2nd hindlimb digit." ;
rdfs:subClassOf obo:XAO_0003103 .
obo:XAO_0004208 a rdfs:Class ;
rdfs:label "adenohypophyseal placode" ;
rdfs:comment "The small pre-placodal ectoderm area that develops at the midline of the anterior neural ridge, abutting the anterior neural plate, and invaginates to form Rathke's pouch, which in turn forms the anterior lobe of the pituitary gland and gives rise to the endocrine secretory cells of the pituitary." ;
rdfs:subClassOf obo:XAO_0005283 .
obo:XAO_0004441 a rdfs:Class ;
rdfs:label "mm. constrictores branchiales II primordium" ;
rdfs:comment "The presumptive cells of the constrictores branchiales II muscles." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0003112 a rdfs:Class ;
rdfs:label "sclerotome of head somite 4" ;
rdfs:comment "Compartment of head somite 4 that is a precursor of the axial skeleton." ;
rdfs:subClassOf obo:XAO_0000397 .
obo:XAO_1000052 a rdfs:Class ;
rdfs:label "NF stage 40" ;
rdfs:comment "Nieuwkoop and Faber stage 40, corresponding to an embryo of age 2 days, 18 hr at 22-24 Celsius and having the following external morphological criteria: Mouth broken through. Length of gills about twice their breadth, posterior one sometimes also showing a branch. Outlines of proctodeum and tail myotomes forming angles of 90 degrees. Beginning of blood circulation in gills. Length: 6.3 - 6.8 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_1000044 a rdfs:Class ;
rdfs:label "NF stage 28" ;
rdfs:comment "Nieuwkoop and Faber stage 28, corresponding to an embryo of age 1 day, 8 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Fin extending up to anus. Fin broadened and distinctly divided into outer transparent and inner translucent band. Length: 3.8 - 4.0 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000084 a rdfs:Class ;
rdfs:label "involuted ventral mesoderm" ;
rdfs:comment "Ventral mesoderm that has grown and curled inward during gastrulation." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000126 a rdfs:Class ;
rdfs:label "oral cavity" ;
rdfs:comment "The cavity of the mouth, bounded by the jaw bones and associated structures." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0000472 a rdfs:Class ;
rdfs:label "iridophore" ;
rdfs:comment "A pigment cell that is derived from the neural crest and gives silver, gold, or iridescent color to skin cells, classified based on their iridescent hue which arises from purine-containing reflecting platelets called iridisomes." ;
rdfs:subClassOf obo:XAO_0003014 .
obo:XAO_0000371 a rdfs:Class ;
rdfs:label "right lymph heart" ;
rdfs:comment "The rightmost of the two bilaterally symmetrical lymph hearts that can be seen adjacent to somites 3 and 4 by NF stage 40, and can be seen beating by NF stage 43. Lymph hearts are pulsatile organs, present in lower vertebrates, that function to propel lymph into the venous system." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0005113 a rdfs:Class ;
rdfs:label "dorsal animal hemisphere blastomere" ;
rdfs:comment "Blastomere that is any of blastomeres D1.1 and D1.2 and their children cells after division, D1.1.1, D1.1.2, D1.2.1 and D1.2.2, on the left and right sides of embryo." ;
rdfs:subClassOf obo:XAO_0000200 .
obo:XAO_0006056 a rdfs:Class ;
rdfs:label "lateral cluster" ;
rdfs:comment "The smaller of two lobe-like clusters of glomeruli within the glomerular layer of the ofactory bulb." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000367 a rdfs:Class ;
rdfs:label "cerebral artery" ;
rdfs:comment "The anterior continuation of the internal carotid artery, which gives off the nasociliary artery anterior to the eye." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0004589 a rdfs:Class ;
rdfs:label "subthalamic nucleus" ;
rdfs:comment "The lens-shaped nucleus located in the ventral part of the subthalamus on the inner aspect of the internal capsule that is concerned with the integration of somatic motor function." ;
rdfs:subClassOf obo:XAO_0004609 .
obo:XAO_1000041 a rdfs:Class ;
rdfs:label "NF stage 25" ;
rdfs:comment "Nieuwkoop and Faber stage 25, corresponding to an embryo of age 1 day, 3 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Eyes protruding equally far or further laterally than gill-area. Gill-area grooved. Invagination of otic vesicle indicated by pigment spot. Beginning of fin formation. Length: 2.8 - 3.0 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0000464 a rdfs:Class ;
rdfs:label "ventral lateral line" ;
rdfs:comment "Ventrally located lateral line that runs over the abdomen." ;
rdfs:subClassOf obo:XAO_0004002 .
obo:XAO_1000033 a rdfs:Class ;
rdfs:label "NF stage 12.5" ;
rdfs:comment "Nieuwkoop and Faber stage 12.5, corresponding to an embryo of age 14 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Small yolk plug stage. Future position of neural plate and median groove indicated by darker pigment lines. Yolk plug usually ovoid, variable in size. Length: 1.4 - 1.5 mm." ;
rdfs:subClassOf obo:XAO_1000094 .
obo:XAO_0004219 a rdfs:Class ;
rdfs:label "ceratohyal" ;
rdfs:comment "Cartilaginous element that, together with the palatoquadrate and connecting musculature, is responsible for the ventilation and irrigation of the of the filter apparatus." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0000111 a rdfs:Class ;
rdfs:label "germ cell" ;
rdfs:comment "A cell that is within the developmental lineage of gametes and is able to pass along its genetic material to offspring." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004048 a rdfs:Class ;
rdfs:label "oropharynx" ;
rdfs:comment "Anatomical cluster that comprises the oral part of the pharynx." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0003079 a rdfs:Class ;
rdfs:label "caudal vertebra" ;
rdfs:comment "The bones that make up the tail region of the tadpole." ;
rdfs:subClassOf obo:XAO_0004019 .
obo:XAO_0000032 a rdfs:Class ;
rdfs:label "stomodeal-hypophyseal primordium" ;
rdfs:comment "An anterior thickening of the sensorial layer of ectoderm, just above the cement gland. The hypophyseal layer separates from the stomodeal layer at NF stage 29 and 30, and when contacted by a protrusion of the foregut, the stomodeal layer will rupture to form the mouth opening at NF stage 39 and 40." ;
rdfs:subClassOf obo:XAO_0003043 .
obo:XAO_0000297 a rdfs:Class ;
rdfs:label "animal" ;
rdfs:comment "Anatomical direction relating to the animal pole or hemisphere." ;
rdfs:subClassOf obo:XAO_0003185 .
obo:XAO_0003220 a rdfs:Class ;
rdfs:label "optic fiber layer" ;
rdfs:comment "Fiber layer adjacent the retinal ganglion cell layer that comprises its axons as they traverse to the optic nerve." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000103 a rdfs:Class ;
rdfs:label "midgut" ;
rdfs:comment "Middle subdivision of the digestive tract. The midgut is the portion of the embryo from which most of the intestines develop. After it bends around the superior mesenteric artery, it is often referred to as the \"midgut loop\". It comprises the portion of the alimentary canal from the end of the foregut at the opening of the bile duct to the hindgut, about two-thirds of the way through the transverse colon." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000159 a rdfs:Class ;
rdfs:label "islets of Langerhans" ;
rdfs:comment "Structure that is made up of islet cells that produce insulin, glucagon, and somatostatin." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0000021 a rdfs:Class ;
rdfs:label "ventricular zone" ;
rdfs:comment "Proliferative region that is part of the ventricular system of the brain." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000178 a rdfs:Class ;
rdfs:label "peripheral nervous system" ;
rdfs:comment "One of the two major divisions of the nervous system. Its nerves connect the central nervous system with sensory organs, other organs, muscles, blood vessels and glands." ;
rdfs:subClassOf obo:XAO_0000177 .
obo:XAO_0005013 a rdfs:Class ;
rdfs:label "centromere" ;
rdfs:comment "The region of a chromosome that is attached to the spindle during nuclear division. It is defined genetically as the region of the chromosome that always segregates at the first division of meiosis; the region of the chromosome in which no crossing over occurs. At the start of M phase, each chromosome consists of two sister chromatids with a constriction at a point which forms the centromere. During late prophase two kinetochores assemble on each centromere, one kinetochore on each sister chromatid." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000339 a rdfs:Class ;
rdfs:label "left channel of ventral aorta" ;
rdfs:comment "Of the paired ventral aortas in the tadpole, the one that branches into the left aortic arches." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0005182 a rdfs:Class ;
rdfs:label "descending interneuron" ;
rdfs:comment "An interneuron which grows from the soma in a descending (from head to tail) direction." ;
rdfs:subClassOf obo:XAO_0004267 .
obo:XAO_0004517 a rdfs:Class ;
rdfs:label "ciliated non-epidermal cell" ;
rdfs:comment "A ciliated cell that is not part of the epidermis." ;
rdfs:subClassOf obo:XAO_0005017 .
obo:XAO_0005232 a rdfs:Class ;
rdfs:label "ionocyte, alpha subtype" ;
rdfs:comment "One of the two types of proton-secreteing cells (PSC) in amphibian skin, which play an important role in ion transport, alpha-PSCs are characterised by expression of slc4a1 (ae1) and localization of H+v-ATPases at the apical plasma membrane." ;
rdfs:subClassOf obo:XAO_0004085 .
obo:XAO_0004486 a rdfs:Class ;
rdfs:label "organ part" ;
rdfs:comment "Anatomical structure that has as its direct parts two or more types of tissue and is continuous with one or more anatomical structures likewise constituted by two or more portions of tissues distinct from those of their complement." ;
rdfs:subClassOf obo:XAO_0003000 .
obo:XAO_0003008 a rdfs:Class ;
rdfs:label "activin-induced ectoderm" ;
rdfs:comment "Ectoderm section that has been dissected from the embryo, and treated with activin, and maintained in vitro." ;
rdfs:subClassOf obo:XAO_0003007 .
obo:XAO_0004279 a rdfs:Class ;
rdfs:label "cranial skeleton" ;
rdfs:comment "Skeletal subdivision of the head that includes the skull (cranium plus mandible), pharyngeal and/or hyoid apparatus." ;
rdfs:subClassOf obo:XAO_0004289 .
obo:XAO_0003031 a rdfs:Class ;
rdfs:label "hindlimb" ;
rdfs:comment "One of the pair of limbs that are situated posteriorly, are evident as buds laterally by NF stage 47, and are innervated by NF stage 51." ;
rdfs:subClassOf obo:XAO_0003027 .
obo:XAO_0000189 a rdfs:Class ;
rdfs:label "auditory apparatus" ;
rdfs:comment "The combination of structures that form the ear and function to transmit vibrations and permit hearing." ;
rdfs:subClassOf obo:XAO_0003165 .
obo:XAO_0004398 a rdfs:Class ;
rdfs:label "wound epidermis inner layer" ;
rdfs:comment "Regenerating tissue that forms the inner or basal layer of wound epidermis." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0000461 a rdfs:Class ;
rdfs:label "trunk placode" ;
rdfs:comment "Thickened plate of ectoderm that contributes to the formation of the dorsal, middle, or ventral lateral line." ;
rdfs:subClassOf obo:XAO_0003042 .
obo:XAO_0000087 a rdfs:Class ;
rdfs:label "tail region" ;
rdfs:comment "The anatomical region of the body posterior to the tail." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0000050 a rdfs:Class ;
rdfs:label "mesoderm" ;
rdfs:comment "Primary germ layer that is the middle of the embryo's germ layers, between the endoderm and ectoderm." ;
rdfs:subClassOf obo:XAO_0003011 .
obo:XAO_0000248 a rdfs:Class ;
rdfs:label "neural groove" ;
rdfs:comment "The median dorsal longitudinal groove in the neural plate, directly above the notochord, which appears after neural fold formation." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0000252 a rdfs:Class ;
rdfs:label "neurocoel" ;
rdfs:comment "An anatomical space that is surrounded by a neural tube." ;
rdfs:subClassOf obo:XAO_0003190 .
obo:XAO_0006029 a rdfs:Class ;
rdfs:label "megakaryocyte/erythrocyte precursor" ;
rdfs:comment "A progenitor cell that is part of the hematological system and develops into a megakaryocyte or erythrocyte." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0004479 a rdfs:Class ;
rdfs:label "forelimb digit 3" ;
rdfs:comment "The second most posterior digit of a forelimb, consisting of a single metatarsal, 3 phalanges, and a claw." ;
rdfs:subClassOf obo:XAO_0003036 .
obo:XAO_0004600 a rdfs:Class ;
rdfs:label "prosomere 5" ;
rdfs:comment "The 5th segment of the developing forebrain." ;
rdfs:subClassOf obo:XAO_0004598 .
obo:XAO_0004015 a rdfs:Class ;
rdfs:label "dermal bone" ;
rdfs:comment "Skeletal element that forms superficially in the organism, usually in association with the ectoderm." ;
rdfs:subClassOf obo:XAO_0004014 .
obo:XAO_0004337 a rdfs:Class ;
rdfs:label "m. subarcualis rectus I" ;
rdfs:comment "Deep, visceral muscle associated with tongue movement." ;
rdfs:subClassOf obo:XAO_0004325 .
obo:XAO_0004397 a rdfs:Class ;
rdfs:label "wound epidermis" ;
rdfs:comment "A layer of epidermal cells that initially covers the surface of an amputation site. Fibroblasts from the surrounding connective tissue migrate across the amputation surface to meet at the center of the wound. These fibroblasts multiply to form a blastema, which are the progenitors for the new limb." ;
rdfs:subClassOf obo:XAO_0004059 .
obo:XAO_0005188 a rdfs:Class ;
rdfs:label "pars distalis" ;
rdfs:comment "Structure which comprises the majority of the anterior pituitary (adenohypophysis) and where the bulk of pituitary hormone production occurs." ;
rdfs:subClassOf obo:XAO_0003037 .
obo:XAO_0004429 a rdfs:Class ;
rdfs:label "m. levator mandibulae externus primordium" ;
rdfs:comment "The presumptive cells of the levator mandibulae externus muscle." ;
rdfs:subClassOf obo:XAO_0004455 .
obo:XAO_0004610 a rdfs:Class ;
rdfs:label "left ventricle" ;
rdfs:comment "The lateral ventricle that is located in the left hemisphere of the brain." ;
rdfs:subClassOf obo:XAO_0004607 .
obo:XAO_0004381 a rdfs:Class ;
rdfs:label "trabecula cranii" ;
rdfs:comment "Cartilaginous element comprising paired, rod-shaped cartilages, which develop in the head of the embryo. They are the primordia of the anterior part of the cranial base, and are derived from the cranial neural crest cells." ;
rdfs:subClassOf obo:XAO_0004013 .
obo:XAO_0003254 a rdfs:Class ;
rdfs:label "Merkel cell" ;
rdfs:comment "A modified epidermal cell located in the stratum basale. They are found mostly in areas where sensory perception is acute." ;
rdfs:subClassOf obo:XAO_0003012 .
obo:XAO_0005069 a rdfs:Class ;
rdfs:label "iliofibularis" ;
rdfs:comment "A hindlimb muscle that is used in locomotion and which contains a population of slow or tonic fibers, as well as twitch fibers." ;
rdfs:subClassOf obo:XAO_0000172 .
obo:XAO_0005124 a rdfs:Class ;
rdfs:label "pulmonary epithelium" ;
rdfs:comment "The epithelial layer of the lung." ;
rdfs:subClassOf obo:XAO_0003045 .
obo:XAO_0004167 a rdfs:Class ;
rdfs:label "metencephalic artery" ;
rdfs:comment "The artery that crosses the brain dorsally, and meets the metencephalic vein." ;
rdfs:subClassOf obo:XAO_0000114 .
obo:XAO_0005074 a rdfs:Class ;
rdfs:label "skin seromucous gland" ;
rdfs:comment "A gland of the skin in which some secretory cells are serous and some mucous." ;
rdfs:subClassOf obo:XAO_0005071 .
obo:XAO_0003172 a rdfs:Class ;
rdfs:label "olfactory region" ;
rdfs:comment "Anatomical cluster that is located in the anterior region of the neurocranium and provides structural support for the olfactory organs." ;
rdfs:subClassOf obo:XAO_0003160 .
obo:XAO_0000040 a rdfs:Class ;
rdfs:label "head region" ;
rdfs:comment "The anterior-most third of the embryo, formed from the development of the head outgrowth at NF stage 21." ;
rdfs:subClassOf obo:XAO_0003186 .
obo:XAO_0003095 a rdfs:Class ;
rdfs:label "vestibulocochlear nerve" ;
rdfs:comment "Cranial nerve that runs to the ear. It has two branches, the cochlear nerve and the vestibular nerve, which receives positional information." ;
rdfs:subClassOf obo:XAO_0000429 .
obo:XAO_0004190 a rdfs:Class ;
rdfs:label "cardiac neural crest" ;
rdfs:comment "Neural crest that develops from the dorsal neural tube. It overlaps the vagal neural crest and migrates to contribute to the pharyngeal arches 3, 4 and 6 (producing structures in the head) and to the heart where it contributes to connective tissue (septa) that separates the vessels of the heart. Cardiac neural crest develops into melanocytes, cartilage, connective tissue and neurons of some pharyngeal arches." ;
rdfs:subClassOf obo:XAO_0003040 .
obo:XAO_0006018 a rdfs:Class ;
rdfs:label "gray crescent" ;
rdfs:comment "A light gray region on the dorsal surface of a fertilized oocyte. It is fully formed by the beginning of the first cleavage, and forms as a result of cortical rotation of the intermal cytoplasm and occurs opposite the sperm entry point. It is later the site where the Spemann organizer will form at the gastrula stage." ;
rdfs:subClassOf obo:XAO_0004290 .
obo:XAO_0000098 a rdfs:Class ;
rdfs:label "hyoid arch" ;
rdfs:comment "The second of the series of bony or cartilaginous arches that develop in the walls of the mouth cavity and pharynx of the embryo." ;
rdfs:subClassOf obo:XAO_0000096 .
obo:XAO_0004055 a rdfs:Class ;
rdfs:label "mineralized cartilage tissue" ;
rdfs:comment "Cartilage tissue that is mineralized." ;
rdfs:subClassOf obo:XAO_0000170 .
obo:XAO_0004357 a rdfs:Class ;
rdfs:label "m. obliquus superior" ;
rdfs:comment "Muscle in the upper, medial side of the orbit whose primary action is downward, lateral rotation of the eye." ;
rdfs:subClassOf obo:XAO_0004327 .
obo:XAO_0003161 a rdfs:Class ;
rdfs:label "limb bud" ;
rdfs:comment "Structure that is an early outgrowth of a presumptive limb." ;
rdfs:subClassOf obo:XAO_0003028 .
obo:XAO_0005172 a rdfs:Class ;
rdfs:label "left blastomere" ;
rdfs:comment "The blastomere of the future left side of the embryo at the 2-cell stage." ;
rdfs:subClassOf obo:XAO_0003016 .
obo:IAO_0000115 a rdf:Property ;
rdfs:label "definition" ;
rdfs:range xsd:string .
obo:IAO_0000700 a rdf:Property ;
rdfs:label "IAO:0000700" ;
rdfs:range xsd:string .
obo:IAO_0100001 a rdf:Property ;
rdfs:label "term replaced by" ;
rdfs:range xsd:string .
obo:OMO_0003004 a rdf:Property ;
rdfs:label "plural form" ;
rdfs:range xsd:string .
a rdf:Property ;
rdfs:comment "Anatomical Site slim" ;
rdfs:range xsd:string .
a rdf:Property ;
rdfs:comment "Frequently Used Anatomy slim" ;
rdfs:range xsd:string .
a rdf:Property ;
rdfs:comment "Organism View slim" ;
rdfs:range xsd:string .
a rdf:Property ;
rdfs:comment "Sectional Anatomy Item slim" ;
rdfs:range xsd:string .