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

obo:VT_0011126 a rdfs:Class ;
  rdfs:label "placenta ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the organ of metabolic interchange between fetus and mother, partly of embryonic origin and partly of maternal origin. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011125 .

obo:VT_0002683 a rdfs:Class ;
  rdfs:label "onset of fertility" ;
  rdfs:comment "The age at which an organism develops the ability to produce viable offspring." ;
  rdfs:subClassOf obo:VT_0001938 .

obo:VT_0010189 a rdfs:Class ;
  rdfs:label "muscle nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of sensory or motor nerve fibers to targets in the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0002108 , obo:VT_0010142 .

obo:VT_0008207 a rdfs:Class ;
  rdfs:label "B-2 B cell quantity" ;
  rdfs:comment "The proportion or number of conventional B cells subject to antigenic stimulation and dependent on T cell help and with a distinct surface marker expression pattern from B-1 B cells." ;
  rdfs:subClassOf obo:VT_0008166 , obo:VT_0008211 .

obo:VT_0004306 a rdfs:Class ;
  rdfs:label "Rosenthal canal size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the winding tube of the bony labyrinth that makes two and a half turns about the modiolus of the cochlea." ;
  rdfs:subClassOf obo:VT_0004305 .

obo:VT_0002415 a rdfs:Class ;
  rdfs:label "neutrophil development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the granular leukocytes that have a three- to five-lobed nucleus and cytoplasm that contains inconspicuous granules stainable by neutral dyes." ;
  rdfs:subClassOf obo:VT_0008111 .

obo:VT_0000458 a rdfs:Class ;
  rdfs:label "mandible morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the lower bony framework of the mouth where the inferior teeth are held." ;
  rdfs:subClassOf obo:VT_0000454 , obo:VT_0005274 .

obo:VT_0008134 a rdfs:Class ;
  rdfs:label "Peyer's patch size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the protruding lymphoid tissue located on the mucosa of the small intestine that is composed of densely packed B cell follicles." ;
  rdfs:subClassOf obo:VT_0000696 .

obo:VT_0004005 a rdfs:Class ;
  rdfs:label "intestinal smooth muscle contractility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the unstriated, involuntary muscle tissue of the intestines to shorten or to develop increased tension." ;
  rdfs:subClassOf obo:VT_0000740 .

obo:VT_0002354 a rdfs:Class ;
  rdfs:label "spleen trabecular artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one of the branches of the splenic artery." ;
  rdfs:subClassOf obo:VT_0000689 , obo:VT_0002191 .

obo:VT_0011287 a rdfs:Class ;
  rdfs:label "CA3 field of hippocampus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the part of the hippocampus proper bounded by the hilus of the dentate gyrus and area CA2, charaterized by large pyramidal cells and a dense projection from detate gyrus granule cell mossy fibers. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011151 .

obo:VT_0007000 a rdfs:Class ;
  rdfs:label "obsolete heart apex orientation trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the location or arrangement of the top of the heart in relation to the rostral-caudal axis of the body." .

obo:VT_0006008 a rdfs:Class ;
  rdfs:label "neurogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of neurons during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0003309 a rdfs:Class ;
  rdfs:label "modiolus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the conic central core of spongy bone about which the spiral canal turns." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0003524 a rdfs:Class ;
  rdfs:label "labia minora shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the folds of skin which form the inner lips (labia minora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003520 .

obo:VT_0010122 a rdfs:Class ;
  rdfs:label "somite morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the paired, metamerically arranged cell masses formed in the embryonic paraxial mesoderm." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0004172 a rdfs:Class ;
  rdfs:label "subpallium development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the base region of the telencephalon during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000934 .

obo:VT_0004453 a rdfs:Class ;
  rdfs:label "pterygoid bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone region which corresponds to the inner plate of the pterygoid process of the mammalian skull." ;
  rdfs:subClassOf obo:VT_0004452 .

obo:VT_0000617 a rdfs:Class ;
  rdfs:label "salivary gland mucosal cell quantity" ;
  rdfs:comment "The proportion or number of cells that form mucus in the salivary glands." ;
  rdfs:subClassOf obo:VT_0000615 .

obo:VT_0000898 a rdfs:Class ;
  rdfs:label "midbrain cell quantity" ;
  rdfs:comment "The proportion or number of cells in the middle division of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes a ventral part containing the cerebral peduncles and a dorsal tectum containing the corpora quadrigemina and that surrounds the aqueduct of Sylvius connecting the third and fourth ventricles)." ;
  rdfs:subClassOf obo:VT_0000897 .

obo:VT_0006175 a rdfs:Class ;
  rdfs:label "choroid size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the choroid." ;
  rdfs:subClassOf obo:VT_0005098 .

obo:VT_0002636 a rdfs:Class ;
  rdfs:label "time of vaginal opening" ;
  rdfs:comment "The timing of the opening of the genital canal in a female." ;
  rdfs:subClassOf obo:VT_0001938 .

obo:VT_0004088 a rdfs:Class ;
  rdfs:label "sarcoplasmic reticulum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the endoplasmic reticulum of skeletal or cardiac muscle, i.e., the complex of vesicles, tubules, and cisternae that form a continuous structure around striated myofibrils, with a repetition of structure within each sarcomere." ;
  rdfs:subClassOf obo:VT_0004087 .

obo:VT_0002238 a rdfs:Class ;
  rdfs:label "nasal mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mucous membrane that lines the nasal cavity." ;
  rdfs:subClassOf obo:VT_0002233 , obo:VT_0002277 .

obo:VT_0003701 a rdfs:Class ;
  rdfs:label "sister chromatid exchange trait" ;
  rdfs:comment "Any measurable or observable characteristic related to crossovers between sister chromatids during meiosis." ;
  rdfs:subClassOf obo:VT_0001930 .

obo:VT_1000286 a rdfs:Class ;
  rdfs:label "tibia elasticity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the medial and larger of the two bones of the lower leg to recover size and shape after deformation in any way." ;
  rdfs:subClassOf obo:VT_0000072 .

obo:VT_0001366 a rdfs:Class ;
  rdfs:label "pillar cell quantity" ;
  rdfs:comment "The proportion or numbers of the supporting cells that form the inner and outer walls of the tunnel in the organ of Corti." ;
  rdfs:subClassOf obo:VT_0003825 .

obo:VT_0010759 a rdfs:Class ;
  rdfs:label "heart left ventricle end-systolic diameter" ;
  rdfs:comment "The distance across the left lower chamber of the heart, immediately before mitral valve opening." ;
  rdfs:subClassOf obo:VT_0010492 .

obo:VT_0010109 a rdfs:Class ;
  rdfs:label "hippocampus pyramidal cell quantity" ;
  rdfs:comment "The proportion or number of projection neurons in the pyramidal layer of the hippocampus." ;
  rdfs:subClassOf obo:VT_0003240 , obo:VT_0010108 .

obo:VT_0010041 a rdfs:Class ;
  rdfs:label "cholinergic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers that utilize acetylcholine as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0010142 .

obo:VT_0011099 a rdfs:Class ;
  rdfs:label "cornea ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the transparent anterior portion of the fibrous coat of the eye that serves as the chief refractory structure. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011098 .

obo:VT_0002275 a rdfs:Class ;
  rdfs:label "type II pneumocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial cells lining the alveoli that produce surfactant." ;
  rdfs:subClassOf obo:VT_0002273 .

obo:VT_0008123 a rdfs:Class ;
  rdfs:label "plasmacytoid dendritic cell quantity" ;
  rdfs:comment "The proportion or number of phagocytic dendritic cells that are morphologically similar to plasma cells, but do not express B lineage markers, and produce large amounts of alpha/beta interferons (IFN-/) in response to viral and bacterial stimuli." ;
  rdfs:subClassOf obo:VT_0004242 .

obo:VT_0005252 a rdfs:Class ;
  rdfs:label "meibomian gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of sebaceous glands embedded in the tarsal plate of each eyelid." ;
  rdfs:subClassOf obo:VT_0000647 , obo:VT_0001340 .

obo:VT_0010490 a rdfs:Class ;
  rdfs:label "aorta blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the movement of blood within the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0000261 .

obo:VT_0015097 a rdfs:Class ;
  rdfs:label "equilibrioception system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the structures involved in the combination of processes by which an organism can perceive its orientation with respect to gravity as well as the overall process by which an organism can perceive its orientation with respect to gravity." ;
  rdfs:subClassOf obo:VT_0015094 .

obo:VT_0005646 a rdfs:Class ;
  rdfs:label "pituitary gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the unpaired compound gland suspended from the base of the hypothalamus by a short extension of the infundibulum, the infundibular or pituitary stalk." ;
  rdfs:subClassOf obo:VT_4000013 .

obo:VT_0010436 a rdfs:Class ;
  rdfs:label "response to fungal infection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter immune processes or function as a result of invasion and multiplication of yeast or mold in the tissues, or of exposure to components of or toxins produced by these organisms." ;
  rdfs:subClassOf obo:VT_0010434 .

obo:VT_0004448 a rdfs:Class ;
  rdfs:label "presphenoid bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the anterior part of the body of the sphenoid bone in front of the basisphenoid; it is usually a separate bone in the young or fetus, but becomes a part of the sphenoid in the adult." ;
  rdfs:subClassOf obo:VT_0000104 .

obo:VT_0000159 a rdfs:Class ;
  rdfs:label "xiphoid process morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the posterior/inferior tip of the sternum." ;
  rdfs:subClassOf obo:VT_0000157 .

obo:VT_0004096 a rdfs:Class ;
  rdfs:label "midbrain-hindbrain boundary development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation of the midbrain-hindbrain domain, comprised of the mesencephalic vesicle and the first rhombencephalic vesicle at early somitogenesis stages during its formation and differentiation; this area is an organizing center at the boundary patterns the midbrain and hindbrain primordia of the neural plate." ;
  rdfs:subClassOf obo:VT_0003864 .

obo:VT_0005204 a rdfs:Class ;
  rdfs:label "canal of Schlemm morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the vascular structure encircling the anterior chamber of the eye, through which the aqueous humor is returned to the blood circulation." ;
  rdfs:subClassOf obo:VT_0004221 .

obo:VT_0000865 a rdfs:Class ;
  rdfs:label "cerebellum vermis size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the narrow middle zone between the two hemispheres of the cerebellum." ;
  rdfs:subClassOf obo:VT_0000864 .

obo:VT_0006033 a rdfs:Class ;
  rdfs:label "external auditory canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the canal that connects the outer and middle ear." ;
  rdfs:subClassOf obo:VT_0002177 .

obo:VT_0010205 a rdfs:Class ;
  rdfs:label "proventriculus mass" ;
  rdfs:comment "The amount of matter in the first muscular and glandular part of the stomach of birds where digestive enzymes are secreted and mixed with food." ;
  rdfs:subClassOf obo:VT_0010203 .

obo:VT_0002450 a rdfs:Class ;
  rdfs:label "immune system organ development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organs associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0010179 .

obo:VT_0005581 a rdfs:Class ;
  rdfs:label "renin activity" ;
  rdfs:comment "The degree of function or response of this enzyme, which cleaves angiotensinogen and creates angiotensin I." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0005551 a rdfs:Class ;
  rdfs:label "eye electrophysiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the eye as determined through electrophysiological recordings from single cells or summary recordings from multiple cells (e.g. electroretinogram)." ;
  rdfs:subClassOf obo:VT_0005253 .

obo:VT_0009059 a rdfs:Class ;
  rdfs:label "blood interleukin-21 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a pleiotropic cytokine that regulates immunoglobulin production, plasma cell and Th17 T cell differentiation, CD8+ T cell expansion, and inhibits antigen presentation by dendritic cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0010974 a rdfs:Class ;
  rdfs:label "blood L-tyrosine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an optically active form of tyrosine (an alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring) having L-configuration." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0000783 a rdfs:Class ;
  rdfs:label "forebrain morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0011149 a rdfs:Class ;
  rdfs:label "intervertebral disk molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the cartilaginous and gelatinous structures found between the bodies of adjacent vertebrae." ;
  rdfs:subClassOf obo:VT_0004173 .

obo:VT_0005083 a rdfs:Class ;
  rdfs:label "biliary tract morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the gall bladder or its ducts." ;
  rdfs:subClassOf obo:VT_0002138 .

obo:VT_0001336 a rdfs:Class ;
  rdfs:label "active-zone-anchored inner hair cell synaptic ribbon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the usually single synaptic ribbon, a characteristic osmiophilic, electron-dense structure to which synaptic vesicles are tethered at the active zone of the cochlear inner hair cell afferent synapse." ;
  rdfs:subClassOf obo:VT_0001335 .

obo:VT_0000119 a rdfs:Class ;
  rdfs:label "tooth eruption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the passage of a tooth through the alveolar process and perforation of the gums." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0004238 a rdfs:Class ;
  rdfs:label "pterygoid muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of either or both of the muscles descending from the sphenoid bone to the lower jaw including the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle; action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side." ;
  rdfs:subClassOf obo:VT_0004237 , obo:VT_0010113 .

obo:VT_0010615 a rdfs:Class ;
  rdfs:label "cranium mineral mass" ;
  rdfs:comment "The amount of matter in the minerals (inorganic elements or compounds that have importance in body functions) in the upper portion of the skull that excludes the mandible." ;
  rdfs:subClassOf obo:VT_0010614 .

obo:VT_0011268 a rdfs:Class ;
  rdfs:label "diaphragm ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the thin musculomebranous barrier that separates the abdominal and thoracic cavities; often used for breathing control. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011267 .

obo:VT_1000748 a rdfs:Class ;
  rdfs:label "type IIa muscle fiber quantity" ;
  rdfs:comment "The proportion or number of type IIa, fast oxidative fibers in skeletal muscle; have an admixture of glycolytic and oxidative enzymes and an intermediate twitch time." ;
  rdfs:subClassOf obo:VT_1000743 .

obo:VT_0002349 a rdfs:Class ;
  rdfs:label "afferent lymphatic vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymphatic tube entering the lymph node." ;
  rdfs:subClassOf obo:VT_0001879 , obo:VT_0002339 .

obo:VT_0000285 a rdfs:Class ;
  rdfs:label "heart valve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the membranous folds of the heart that prevent reflux of fluid." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0011298 a rdfs:Class ;
  rdfs:label "kidney glomerulus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the capillary loops at the beginning of each nephric tubule in the kidney. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010793 , obo:VT_0011299 .

obo:VT_0001895 a rdfs:Class ;
  rdfs:label "hippocampus physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the deep lying structure of the cerebrum involved with memory storage and spatial navigation." ;
  rdfs:subClassOf obo:VT_0015058 .

obo:VT_0008549 a rdfs:Class ;
  rdfs:label "blood interferon-alpha amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of one of the type I interferons produced by peripheral blood leukocytes or lymphoblastoid cells that has antiviral activity and activates natural killer cells and B cells." ;
  rdfs:subClassOf obo:VT_0008548 .

obo:VT_0001923 a rdfs:Class ;
  rdfs:label "female fertility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of a female to produce live offspring." ;
  rdfs:subClassOf obo:VT_0003699 , obo:VT_0010464 .

obo:VT_0010577 a rdfs:Class ;
  rdfs:label "spinal cord molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the cylindrical tissue of the vertebral canal that extends from the medulla oblongata to the conus medullaris." ;
  rdfs:subClassOf obo:VT_0000955 .

obo:VT_0010248 a rdfs:Class ;
  rdfs:label "hemolymphoid system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the blood forming organs and tissues and the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0008601 a rdfs:Class ;
  rdfs:label "blood interleukin-4 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a soluble factor produced by activated T-cells that induces the expression of MHC class II genes and FC receptors on B-cells and causes their proliferation and differentiation; it also acts on T-cells, mast cells and several other hematopoietic lineage cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0000490 a rdfs:Class ;
  rdfs:label "crypt of Lieberkuhn morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the tubular intestinal glands found in the mucosal membranes." ;
  rdfs:subClassOf obo:VT_0000511 , obo:VT_4000012 .

obo:VT_0010006 a rdfs:Class ;
  rdfs:label "adipose molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in fat-storing cells/tissue." ;
  rdfs:subClassOf obo:VT_0000003 , obo:VT_0011282 .

obo:VT_0003120 a rdfs:Class ;
  rdfs:label "tracheal cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cartilaginous structures that support the tube descending from the larynx and branching into the right and left main bronchi." ;
  rdfs:subClassOf obo:VT_0000163 , obo:VT_0002282 .

obo:VT_0010025 a rdfs:Class ;
  rdfs:label "milk fatty acid C12:1(n-3) amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an omega-3, unsaturated fatty acid with a twelve-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010322 , obo:VT_0010373 .

obo:VT_0005232 a rdfs:Class ;
  rdfs:label "mesenteric lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph nodes located in the mesentery, of which there are 3 classes: ileocolic, juxtaintestinal mesenteric, and central superior group." ;
  rdfs:subClassOf obo:VT_0009625 .

obo:VT_0000827 a rdfs:Class ;
  rdfs:label "third ventricle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the narrow cleft inferior to the corpus callosum, within the diencephalon, between the paired thalami; its floor is formed by the hypothalamus, its anterior wall by the lamina terminalis, and its roof by ependyma; it communicates with the fourth ventricle by the cerebral aqueduct, and with the lateral ventricles by the interventricular foramina." ;
  rdfs:subClassOf obo:VT_0000826 , obo:VT_0011083 .

obo:VT_0000678 a rdfs:Class ;
  rdfs:label "parathyroid gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one of the two small, paired endocrine glands, usually found embedded in the connective tissue capsule on the posterior surface of the thyroid gland; they secrete parathyroid hormone (PTH) that regulates calcium and phosphorus metabolism." ;
  rdfs:subClassOf obo:VT_0002163 .

obo:VT_0002896 a rdfs:Class ;
  rdfs:label "bone mineralization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which minerals (inorganic elements or compounds that have importance in body functions) are introduced into osseous tissue." ;
  rdfs:subClassOf obo:VT_0000070 .

obo:VT_0010488 a rdfs:Class ;
  rdfs:label "response to addictive substance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of exposure to a substance with the potential for addiction." ;
  rdfs:subClassOf obo:VT_0010487 .

obo:VT_0000999 a rdfs:Class ;
  rdfs:label "Golgi tendon organ morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory organ in muscle that is involved in regulating muscle tension." ;
  rdfs:subClassOf obo:VT_0000990 .

obo:VT_0005215 a rdfs:Class ;
  rdfs:label "islet of Langerhans morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cellular masses consisting of several to several hundred cells in the interstitial tissue of the pancreas; they are composed of five different cell types that make up the endocrine portion of the pancreas." ;
  rdfs:subClassOf obo:VT_4000011 .

obo:VT_0003798 a rdfs:Class ;
  rdfs:label "Harderian gland pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the sebaceous gland located behind the eyeball in some species that excretes fluid that facilitates movement of the nictitating membrane." ;
  rdfs:subClassOf obo:VT_0005248 .

obo:VT_0010144 a rdfs:Class ;
  rdfs:label "pancreas mass" ;
  rdfs:comment "The amount of matter in the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream." ;
  rdfs:subClassOf obo:VT_0003450 .

obo:VT_0004213 a rdfs:Class ;
  rdfs:label "umami taste sensitivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to perceive a particular flavor or suggestion of something umami (savory) by the chemoreceptors of the gustatory system." ;
  rdfs:subClassOf obo:VT_0001986 .

obo:VT_0010425 a rdfs:Class ;
  rdfs:label "interscapular fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue located between the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0015002 .

obo:VT_0010655 a rdfs:Class ;
  rdfs:label "feather length" ;
  rdfs:comment "The distance from point to point along the longest axis of the surface covering of birds, made of keratin." ;
  rdfs:subClassOf obo:VT_1000664 .

obo:VT_0002264 a rdfs:Class ;
  rdfs:label "bronchus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upper conducting airways of the lung; these airways arise from the terminus of the trachea." ;
  rdfs:subClassOf obo:VT_0004391 .

obo:VT_0011374 a rdfs:Class ;
  rdfs:label "carbon dioxide excretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the elimination by an organism of carbon dioxide, a colorless, odorless gas produced during respiration by all animals that depend directly or indirectly on living or decaying plants for food." ;
  rdfs:subClassOf obo:VT_0011373 .

obo:VT_0003208 a rdfs:Class ;
  rdfs:label "neuromere morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the segments of the developing neural tube." ;
  rdfs:subClassOf obo:VT_0002151 .

obo:VT_1000436 a rdfs:Class ;
  rdfs:label "skeletal muscle conductivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the striated muscles connected at either or both extremities with the bony framework of the body to conduct electrical current." ;
  rdfs:subClassOf obo:VT_0010080 , obo:VT_1000435 .

obo:VT_0003744 a rdfs:Class ;
  rdfs:label "orofacial morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the oral cavities of the face." ;
  rdfs:subClassOf obo:VT_0003743 .

obo:VT_0010572 a rdfs:Class ;
  rdfs:label "testis integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the male reproductive gland(s) where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0001146 .

obo:VT_0003648 a rdfs:Class ;
  rdfs:label "radial glial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the supporting cells of the developing central nervous system that guide neuronal migration during development and exchange metabolites with developing and migrating neurons; these cells differentiate into astrocytes and some neuronal types in the adult." ;
  rdfs:subClassOf obo:VT_0000952 , obo:VT_0006008 .

obo:VT_0006030 a rdfs:Class ;
  rdfs:label "otic vesicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired epithelial sacs formed from the otic placode that give rise to the structures of the inner ear." ;
  rdfs:subClassOf obo:VT_0003938 .

obo:VT_0010290 a rdfs:Class ;
  rdfs:label "milk calcium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this metallic bivalent element with atomic symbol Ca and atomic number 20." ;
  rdfs:subClassOf obo:VT_0010288 , obo:VT_0010499 .

obo:VT_0004077 a rdfs:Class ;
  rdfs:label "striatum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a large cluster of dopaminergic nerve cells, consisting of the caudate nucleus and the putamen, that controls movement, balance, and walking." ;
  rdfs:subClassOf obo:VT_0000787 , obo:VT_0006007 .

obo:VT_0010120 a rdfs:Class ;
  rdfs:label "protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of macromolecules consisting of long sequences of amino acids in peptide linkage." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0010077 a rdfs:Class ;
  rdfs:label "sphenofrontal suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the union between the orbital plate of the frontal bone and the lesser wings of the sphenoid on either side." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0011030 a rdfs:Class ;
  rdfs:label "ovary ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the female reproductive gland containing the germ cells. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010893 .

obo:VT_0000906 a rdfs:Class ;
  rdfs:label "trigeminal V mesencephalic nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of sensory neurons residing in a long, narrow plate in the midbrain; axons pass with the trigeminal nerve." ;
  rdfs:subClassOf obo:VT_0000897 .

obo:VT_0000501 a rdfs:Class ;
  rdfs:label "digestive secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a physiologically active substance (usually but not exclusively in liquid form) from a cell or a gland of the digestive system." ;
  rdfs:subClassOf obo:VT_0001664 .

obo:VT_0010782 a rdfs:Class ;
  rdfs:label "pulmonary arterial blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood pressure in the pulmonary artery." ;
  rdfs:subClassOf obo:VT_2000000 .

obo:VT_0001710 a rdfs:Class ;
  rdfs:label "amniotic fold morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the involutions of the amnion." ;
  rdfs:subClassOf obo:VT_0005029 .

obo:VT_0011314 a rdfs:Class ;
  rdfs:label "non-viable fetus quantity" ;
  rdfs:comment "The proportion or number of fetuses that are not capable of living, growing, or developing successfully." ;
  rdfs:subClassOf obo:VT_0011312 .

obo:VT_0001061 a rdfs:Class ;
  rdfs:label "oculomotor nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the 3rd cranial nerve, which normally sends motor fibers to the levator muscles of the eyelid and to the superior rectus, inferior rectus, and inferior oblique muscles of the eye; and also sends parasympathetic efferents to the muscles controlling pupillary constriction and accommodation." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0003840 a rdfs:Class ;
  rdfs:label "coronal suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the articulation between the parietal bones and the frontal bone." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0003119 a rdfs:Class ;
  rdfs:label "gastrointestinal system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the system that converts ingested food to nutrients and energy." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0002118 a rdfs:Class ;
  rdfs:label "lipid homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the internal equilibrium of lipids (molecules composed of carbon and hydrogen and characteristically insoluble in water) within an organism or cell." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0010937 a rdfs:Class ;
  rdfs:label "fetus trait" ;
  rdfs:comment "Any measurable or observable characteristic or state of an unborn or unhatched vertebrate especially after attaining the basic structural plan of its kind." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0003920 a rdfs:Class ;
  rdfs:label "heart right ventricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0005294 .

obo:VT_0000025 a rdfs:Class ;
  rdfs:label "atrioventricular valve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the valves that gate the flow of blood from the atria into the ventricles." ;
  rdfs:subClassOf obo:VT_0000285 .

obo:VT_0002754 a rdfs:Class ;
  rdfs:label "heart right ventricle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003920 , obo:VT_0010298 .

obo:VT_0003358 a rdfs:Class ;
  rdfs:label "hypaxial muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscles derived from the lateral myotome and lateral portion of the dermomyotome; these include the thoracic intercostal and abdominal muscles, limb muscles and superficial back muscles, as well as the diaphragm and the tip of the tongue." ;
  rdfs:subClassOf obo:VT_0000759 .

obo:VT_0000559 a rdfs:Class ;
  rdfs:label "femur morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_0010105 .

obo:VT_0010329 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-11-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at C-11." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0001740 a rdfs:Class ;
  rdfs:label "epinephrine secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release by the adrenal gland of a catecholamine secreted upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0001739 .

obo:VT_0008399 a rdfs:Class ;
  rdfs:label "alpha-beta intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of an alpha-beta T cell present in columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0002435 , obo:VT_0008894 .

obo:VT_0011110 a rdfs:Class ;
  rdfs:label "heart left atrium molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in any part of the left upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000020 .

obo:VT_0010583 a rdfs:Class ;
  rdfs:label "brain sterol amount" ;
  rdfs:comment "The proportion, quantity, or volume of a steroid with one OH group in the brain, one of the two components of the central nervous system and the center of thought and emotion; controls coordination, bodily activities and the interpretation of information from the senses." ;
  rdfs:subClassOf obo:VT_0010581 , obo:VT_0010585 .

obo:VT_0010543 a rdfs:Class ;
  rdfs:label "catecholamine amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic compounds that act as hormones or neurotransmitters and are derived from the amino acid tyrosine." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0000685 a rdfs:Class ;
  rdfs:label "immune system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organs or cells associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_1000783 .

obo:VT_0010131 a rdfs:Class ;
  rdfs:label "cecum mass" ;
  rdfs:comment "The amount of matter in the large sac at the ileum and large intestine junction." ;
  rdfs:subClassOf obo:VT_0000494 , obo:VT_0010220 .

obo:VT_0005160 a rdfs:Class ;
  rdfs:label "urine protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of macromolecules consisting of long chains of amino acids in peptide linkage in the urine." ;
  rdfs:subClassOf obo:VT_0001757 , obo:VT_0010120 .

obo:VT_0001668 a rdfs:Class ;
  rdfs:label "fructose absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in this 5-carbon sugar." ;
  rdfs:subClassOf obo:VT_0001667 .

obo:VT_0011197 a rdfs:Class ;
  rdfs:label "milk immunoglobulin G2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of immunoglobulin class G2." ;
  rdfs:subClassOf obo:VT_0011195 .

obo:VT_0003011 a rdfs:Class ;
  rdfs:label "dark adaptation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the time required for the eye to recover its sensitivity in the dark following exposure to bright lights." ;
  rdfs:subClassOf obo:VT_0005253 .

obo:VT_0000003 a rdfs:Class ;
  rdfs:label "adipose morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fat-storing cells/tissue." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0005032 a rdfs:Class ;
  rdfs:label "ectoplacental cone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the thickened trophoblast of the blastocyst in rodents that becomes the fetal portion of the placenta." ;
  rdfs:subClassOf obo:VT_0001712 , obo:VT_0002085 .

obo:VT_0004008 a rdfs:Class ;
  rdfs:label "GABA-mediated receptor current" ;
  rdfs:comment "The measured amplitude, current density, or duration of response to stimulation of GABA receptors." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0011178 a rdfs:Class ;
  rdfs:label "penis molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of molecules (proteins, minerals, nutrients, gases, or other substances) within the organ of copulation and urination in the male." ;
  rdfs:subClassOf obo:VT_0005187 .

obo:VT_0000058 a rdfs:Class ;
  rdfs:label "heart muscle compact layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the outer, dense layer of the myocardium." ;
  rdfs:subClassOf obo:VT_0005329 .

obo:VT_1000066 a rdfs:Class ;
  rdfs:label "hip width" ;
  rdfs:comment "The distance from side to side between the points of both hips." ;
  rdfs:subClassOf obo:VT_0100003 .

obo:VT_0000018 a rdfs:Class ;
  rdfs:label "heart ventricle membranous septum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the membranous portion of the wall between the lower chambers of the heart." ;
  rdfs:subClassOf obo:VT_0007082 .

obo:VT_0010797 a rdfs:Class ;
  rdfs:label "muscle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in muscle. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0011371 a rdfs:Class ;
  rdfs:label "water intake trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process whereby water (a colorless, odorless, tasteless liquid, each molecule of which contains one atom of oxygen and two atoms of hydrogen (H2O)) is taken in for utilization by the body." ;
  rdfs:subClassOf obo:VT_0001422 .

obo:VT_0000776 a rdfs:Class ;
  rdfs:label "inferior colliculus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired inferior eminence of the mesencephalic tectum that is involved in preliminary visual processing, and control of eye movements." ;
  rdfs:subClassOf obo:VT_0000899 .

obo:VT_0004121 a rdfs:Class ;
  rdfs:label "sarcolemma morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the plasma membrane of a muscle fiber that is capable of conducting electrical impulses." ;
  rdfs:subClassOf obo:VT_0004087 .

obo:VT_0005270 a rdfs:Class ;
  rdfs:label "zygomatic bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the quadrilateral bone that forms the prominence of the cheek, the lateral wall and margin of the orbit, and the anterior two thirds of the zygomatic arch." ;
  rdfs:subClassOf obo:VT_0005246 , obo:VT_0005274 .

obo:VT_0010283 a rdfs:Class ;
  rdfs:label "milk kappa-casein amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of kappa-casein, a casein which plays a crucial role in micellar structure; its concentration determines micellar size." ;
  rdfs:subClassOf obo:VT_0010280 .

obo:VT_0010346 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-11,cis-15-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a trans double bond at C-11, and a cis double bond at C-15." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0010532 a rdfs:Class ;
  rdfs:label "active avoidance behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism pertaining to the ability to escape a hostile environment to actively avoid the unpleasant or punishing stimulus (e.g., shock) previously encountered in this environment." ;
  rdfs:subClassOf obo:VT_0010528 .

obo:VT_0004333 a rdfs:Class ;
  rdfs:label "utricular macula morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure or pattern of the neuroepithelial sensory receptor in the inferolateral wall of the utricle; hair cells of the neuroepithelium support the statoconial membrane and have terminal arborizations of vestibular nerve fibers around their bodies; normally sensitive to linear acceleration in the longitudinal axis of the body and to gravitational influences." ;
  rdfs:subClassOf obo:VT_0006090 .

obo:VT_0000912 a rdfs:Class ;
  rdfs:label "trigeminal motor nucleus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of motor neurons innervating the muscles of mastication." ;
  rdfs:subClassOf obo:VT_0000911 .

obo:VT_0008650 a rdfs:Class ;
  rdfs:label "interleukin-1 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a soluble factor produced by monocytes, macrophages and other cells, which activates T-lymphocytes and potentiates their response to mitogens or antigens." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0010052 a rdfs:Class ;
  rdfs:label "muscle fatty acid C16:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C16H32O2) present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010048 .

obo:VT_0001881 a rdfs:Class ;
  rdfs:label "mammary gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0002164 , obo:VT_0003699 .

obo:VT_0010196 a rdfs:Class ;
  rdfs:label "intestine mass" ;
  rdfs:comment "The amount of matter in the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0000477 .

obo:VT_0010468 a rdfs:Class ;
  rdfs:label "ventral prostate mass" ;
  rdfs:comment "The amount of matter in the ventral lobe of the prostate." ;
  rdfs:subClassOf obo:VT_0000661 , obo:VT_0010466 .

obo:VT_0002888 a rdfs:Class ;
  rdfs:label "NMDA-mediated synaptic current trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the measured amplitude or duration of response to stimulation of NMDA receptors." ;
  rdfs:subClassOf obo:VT_0002886 .

obo:VT_0006026 a rdfs:Class ;
  rdfs:label "terminal bronchiole tube size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the luminal space of the terminal lung buds." ;
  rdfs:subClassOf obo:VT_0002268 .

obo:VT_0002343 a rdfs:Class ;
  rdfs:label "lymph node cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outer area of the lymph node that has B and T cell domains." ;
  rdfs:subClassOf obo:VT_0002339 .

obo:VT_0010678 a rdfs:Class ;
  rdfs:label "adipose protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in fat-storing cells/tissue of any of the macromolecules consisting of long chains of amino acids in peptide linkage." ;
  rdfs:subClassOf obo:VT_0010006 .

obo:VT_0011339 a rdfs:Class ;
  rdfs:label "heterophil quantity" ;
  rdfs:comment "The proportion or number of the white blood cells that are the avian equivalent to mammalian neutrophils but have eosinophilic cytoplasmic granules." ;
  rdfs:subClassOf obo:VT_0000334 .

obo:VT_0011303 a rdfs:Class ;
  rdfs:label "facial nerve ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the 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). Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011302 .

obo:VT_0011108 a rdfs:Class ;
  rdfs:label "heart right atrium molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in any part of the right upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000019 .

obo:VT_1000520 a rdfs:Class ;
  rdfs:label "adipose fatty acid cis-11-C20:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a monounsaturated fatty acid (C20H38O2), with a carbon-carbon double bond at C-11, present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005285 .

obo:VT_0010370 a rdfs:Class ;
  rdfs:label "milk fatty acid C20:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with a twenty-carbon backbone and two double bonds." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0005221 a rdfs:Class ;
  rdfs:label "rostral-caudal axis patterning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the establishment, maintenance, and elaboration of a pattern along the axis that runs from the head to the tail of the body." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0008724 a rdfs:Class ;
  rdfs:label "eosinophil migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement of eosinophils (granular leukocytes having a two-lobed nucleus and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin) from point to point." ;
  rdfs:subClassOf obo:VT_0002465 , obo:VT_0005073 .

obo:VT_0010555 a rdfs:Class ;
  rdfs:label "thymus integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0000703 .

obo:VT_0011227 a rdfs:Class ;
  rdfs:label "cathepsin B activity" ;
  rdfs:comment "The degree of function or response of a lysosomal cysteine proteinase present in a variety of tissues and important in many physiological and pathological processes." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0005241 a rdfs:Class ;
  rdfs:label "retinal ganglion layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the innermost nuclear layer of the retina, which projects axons through the optic nerve to the brain." ;
  rdfs:subClassOf obo:VT_0006069 .

obo:VT_0004322 a rdfs:Class ;
  rdfs:label "sternebra morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the segments of the primordial sternum of the embryo; these segments fuse to form the body of the adult vertebrate sternum." ;
  rdfs:subClassOf obo:VT_0000157 , obo:VT_0010005 , obo:VT_0015061 .

obo:VT_0011045 a rdfs:Class ;
  rdfs:label "sciatic nerve molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the nerve which originates in the lumbar and sacral spinal cord and supplies motor and sensory innervation to the lower extremity." ;
  rdfs:subClassOf obo:VT_0002651 .

obo:VT_0001945 a rdfs:Class ;
  rdfs:label "bronchoconstriction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the reduction in the caliber of the bronchus or bronchi." ;
  rdfs:subClassOf obo:VT_0002314 .

obo:VT_0002152 a rdfs:Class ;
  rdfs:label "brain morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the brain, one of the two components of the central nervous system and the center of thought and emotion; controls coordination, bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.)." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0010674 a rdfs:Class ;
  rdfs:label "tarsometatarsus circumference" ;
  rdfs:comment "The distance around the long bone in the lower leg of birds, formed by fusion of tarsal and metatarsal structures." ;
  rdfs:subClassOf obo:VT_0010671 .

obo:VT_1000743 a rdfs:Class ;
  rdfs:label "skeletal muscle fiber quantity" ;
  rdfs:comment "The proportion or number of skeletal muscle fibers, the large multinucleated cells that make up the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0003084 , obo:VT_0003398 , obo:VT_0010119 .

obo:VT_0008188 a rdfs:Class ;
  rdfs:label "transitional stage B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of an immature B cell of an intermediate stage between the pre-B cell stage and the mature naive stage; transitional B cells express surface immunoglobulin, and are subject to the process of B cell selection." ;
  rdfs:subClassOf obo:VT_0005022 .

obo:VT_0006235 a rdfs:Class ;
  rdfs:label "pupil quantity" ;
  rdfs:comment "The proportion or number of pupils in one iris, each with sphincter muscle." ;
  rdfs:subClassOf obo:VT_0001317 .

obo:VT_0010932 a rdfs:Class ;
  rdfs:label "blood arginine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of arginine, an alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0000047 a rdfs:Class ;
  rdfs:label "head circumference" ;
  rdfs:comment "The distance around the widest part of the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0000002 .

obo:VT_0010985 a rdfs:Class ;
  rdfs:label "blood L-taurine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of taurine, an amino sulfonic acid that is the 2-amino derivative of ethanesulfonic acid. It is a naturally occurring amino acid derived from methionine and cysteine metabolism." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0000263 a rdfs:Class ;
  rdfs:label "capillary blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood flow in the capillaries." ;
  rdfs:subClassOf obo:VT_0000182 .

obo:VT_0000007 a rdfs:Class ;
  rdfs:label "mammary gland growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size of the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0000628 .

obo:VT_0003589 a rdfs:Class ;
  rdfs:label "ureter physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the tube that conducts the urine from the renal pelvis to the urinary bladder." ;
  rdfs:subClassOf obo:VT_0005502 .

obo:VT_0004274 a rdfs:Class ;
  rdfs:label "embryonic/fetal subventricular zone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the transient proliferative population of neurons that expands exponentially during late prenatal development; it is a continuous germinal zone distinct from the ventricular zone that surrounds the brain ventricles." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0010588 a rdfs:Class ;
  rdfs:label "blood campesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a phytosterol with the formula C28H48O." ;
  rdfs:subClassOf obo:VT_0010587 .

obo:VT_0001158 a rdfs:Class ;
  rdfs:label "prostate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the gland surrounding the beginning of the urethra in males that secretes part of the seminal fluid." ;
  rdfs:subClassOf obo:VT_0000653 , obo:VT_0001145 .

obo:VT_0010915 a rdfs:Class ;
  rdfs:label "peritoneum integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the serous membrane that lines the peritoneal cavity." ;
  rdfs:subClassOf obo:VT_0010684 .

obo:VT_0000134 a rdfs:Class ;
  rdfs:label "compact bone thickness" ;
  rdfs:comment "The distance between the surfaces of the superficial layer of solid, hard bone that covers spongy bone." ;
  rdfs:subClassOf obo:VT_0003797 .

obo:VT_0011156 a rdfs:Class ;
  rdfs:label "cranium molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the upper portion of the skull, excluding the mandible." ;
  rdfs:subClassOf obo:VT_0010612 .

obo:VT_0010212 a rdfs:Class ;
  rdfs:label "jejunum length" ;
  rdfs:comment "The distance from point to point along the longest axis of the portion of the small intestine that extends from the duodenum to the ileum." ;
  rdfs:subClassOf obo:VT_0004002 , obo:VT_1000421 .

obo:VT_0005657 a rdfs:Class ;
  rdfs:label "neural plate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a distinct elevation of a transient proliferating cell mass of the fetal 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 flat, thickened layer of ectodermal cells in the neuroectodermal area of the embryo's dorsal surface that develops into the neural tube and neural crest." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0010118 a rdfs:Class ;
  rdfs:label "muscle cellular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic pertaining to the proportions of cells within the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0002108 .

obo:VT_0010272 a rdfs:Class ;
  rdfs:label "colostrum prolactin amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of the hormone that stimulates milk secretion." ;
  rdfs:subClassOf obo:VT_0010269 .

obo:VT_0008093 a rdfs:Class ;
  rdfs:label "memory B cell quantity" ;
  rdfs:comment "The proportion or number of distinctly differentiated long-lived B cells that are readily activated upon re-encounter of an antigenic determinant; memory B cells differentiate from antigen-activated B cells which have been selected for expression of higher affinity immunoglobulin." ;
  rdfs:subClassOf obo:VT_0002440 , obo:VT_0008211 .

obo:VT_0015014 a rdfs:Class ;
  rdfs:label "aggression-related behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to domineering, assaultive or forceful physical action." ;
  rdfs:subClassOf obo:VT_0002572 .

obo:VT_0003102 a rdfs:Class ;
  rdfs:label "sclera thickness" ;
  rdfs:comment "The distance between the surfaces of the fibrous, outer envelope of the eyeball." ;
  rdfs:subClassOf obo:VT_0002698 .

obo:VT_0003890 a rdfs:Class ;
  rdfs:label "embryonic-extraembryonic boundary morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the connection between the embryo proper and extraembryonic tissues." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0002878 a rdfs:Class ;
  rdfs:label "corticospinal tract morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fibers that arise from the cells within the cerebral cortex layer V, pass through the medullary pyramid, and descend into the gray matter of the spinal cord." ;
  rdfs:subClassOf obo:VT_0000778 .

obo:VT_0010391 a rdfs:Class ;
  rdfs:label "milk adipophilin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of adipophilin, one of the three predominant proteins in the milk fat globule membrane." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0004168 a rdfs:Class ;
  rdfs:label "parahippocampal gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the ridge in the cerebral cortex that contains the olfactory cortex and that plays a role in the formation of topographical memory." ;
  rdfs:subClassOf obo:VT_0000801 , obo:VT_0004169 .

obo:VT_0003474 a rdfs:Class ;
  rdfs:label "summary potential intensity" ;
  rdfs:comment "The degree of de- or hyperpolarization or number of action potentials in response to a specific stimulus recorded in several cells or a tissue slice." ;
  rdfs:subClassOf obo:VT_0003470 .

obo:VT_0002694 a rdfs:Class ;
  rdfs:label "secretion by pancreas trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances from the pancreas." ;
  rdfs:subClassOf obo:VT_0002693 .

obo:VT_0001744 a rdfs:Class ;
  rdfs:label "corticosterone secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of this adrenocortical steroid that induces glycogen deposition and regulates sodium conservation and potassium secretion." ;
  rdfs:subClassOf obo:VT_0001739 .

obo:VT_0010566 a rdfs:Class ;
  rdfs:label "nervous system integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the components of the system responsible for receiving and processing information about an organism's environment and controlling behavior." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0010507 a rdfs:Class ;
  rdfs:label "blood VLDL phospholipid amount" ;
  rdfs:comment "The proportion, quantity, or volume of phospholipid found in the very low density lipoprotein fraction of whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0006084 .

obo:VT_0003168 a rdfs:Class ;
  rdfs:label "scala vestibuli morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the division of the spiral canal of the cochlea lying on the apical side of the spiral lamina and vestibular membrane." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0001324 a rdfs:Class ;
  rdfs:label "eye pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the eye." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0004429 a rdfs:Class ;
  rdfs:label "type II vestibular cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cylindrical sensory cells of the maculae and cristae of the vestibular labyrinth of the inner ear which are normally contacted by bouton endings of afferent and efferent neurons; afferent and efferent nerve fibers of the vestibular nerve synapse with them; from the apical end of each cell a bundle of stereocilia and a kinocilium extend into the otolithic membrane of the maculae or the cupula of the cristae." ;
  rdfs:subClassOf obo:VT_0002623 .

obo:VT_0010828 a rdfs:Class ;
  rdfs:label "tissue epinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in a tissue of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0010153 a rdfs:Class ;
  rdfs:label "obsolete interleukin-8 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of this protein secreted by macrophages which is chemotactic for neutrophils and T cells." .

obo:VT_0001043 a rdfs:Class ;
  rdfs:label "obsolete parotid salivary gland cholinergic innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to the exocrine gland lateral to the jaw that secretes saliva.
consider: VT:0010103, VT:0010124""" .

obo:VT_0008876 a rdfs:Class ;
  rdfs:label "uterine natural killer cell quantity" ;
  rdfs:comment "The proportion or number of the uterine subset of the non-T, non-B lymphocytes, having a granular morphology and which are important in innate immunity to viruses and other intracellular pathogens; uNK cells contribute to uterine decidualization and are recruited to implantation sites." ;
  rdfs:subClassOf obo:VT_0008043 .

obo:VT_0011365 a rdfs:Class ;
  rdfs:label "rumination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the digestive process in some species in which food, usually grass or hay, is swallowed into a multi-compartmented stomach, regurgitated, chewed again, and swallowed again." ;
  rdfs:subClassOf obo:VT_0001664 .

obo:VT_0000984 a rdfs:Class ;
  rdfs:label "obsolete Meissner's corpuscle innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to any part of the numerous oval bodies found in the dermal papillae of thick skin and which are believed to be mechanoreceptors for tactile sensation.
consider: VT:0010187, VT:0010188""" .

obo:VT_0000764 a rdfs:Class ;
  rdfs:label "tongue epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the epithelial layer of the tongue." ;
  rdfs:subClassOf obo:VT_0000762 .

obo:VT_0001586 a rdfs:Class ;
  rdfs:label "erythrocyte quantity" ;
  rdfs:comment "The proportion or number in the blood of the cells that carry oxygen, the red blood cells." ;
  rdfs:subClassOf obo:VT_0000237 , obo:VT_0002447 .

obo:VT_1000670 a rdfs:Class ;
  rdfs:label "blood cortisol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a steroid hormone secreted by the adrenal cortex which acts as an anti-inflammatory agent." ;
  rdfs:subClassOf obo:VT_0003366 .

obo:VT_0010771 a rdfs:Class ;
  rdfs:label "retina integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the thin layer of neural tissue lining the back of the eyeball which contains visual receptors." ;
  rdfs:subClassOf obo:VT_0001325 .

obo:VT_0004108 a rdfs:Class ;
  rdfs:label "esophageal peristalsis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the esophageal movement characterized by waves of alternate circular contraction and relaxation of the muscular walls that move the esophagus contents forward." ;
  rdfs:subClassOf obo:VT_0001664 .

obo:VT_0001553 a rdfs:Class ;
  rdfs:label "blood free fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of organic, monobasic acids derived from hydrocarbons, which are complexed with serum albumin for transport; they are saturated and unsaturated." ;
  rdfs:subClassOf obo:VT_0003949 , obo:VT_0010046 .

obo:VT_0010963 a rdfs:Class ;
  rdfs:label "CD25-positive T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the regulatory subset of regulatory T lymphocytes that carry the CD25 marker.  CD25 is the IL-2 receptor alpha chain." ;
  rdfs:subClassOf obo:VT_0002435 .

obo:VT_1000205 a rdfs:Class ;
  rdfs:label "nipple length" ;
  rdfs:comment "The distance from point to point along the longest axis of the nipple." ;
  rdfs:subClassOf obo:VT_0010933 .

obo:VT_0003582 a rdfs:Class ;
  rdfs:label "ovary development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the female reproductive gland containing the germ cells during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003936 , obo:VT_0015037 .

obo:VT_0010193 a rdfs:Class ;
  rdfs:label "colon length" ;
  rdfs:comment "The distance from point to point along the longest axis of the portion of the large intestine between the cecum and the rectum." ;
  rdfs:subClassOf obo:VT_0002731 , obo:VT_0010219 .

obo:VT_0005237 a rdfs:Class ;
  rdfs:label "olfactory tract morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nerve-like, white band composed primarily of nerve fibers originating from the mitral cells and tufted cells of the olfactory bulb, but also containing the scattered cells of the anterior olfactory nucleus." ;
  rdfs:subClassOf obo:VT_0005267 .

obo:VT_0002882 a rdfs:Class ;
  rdfs:label "neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the functional cells of the nervous system that receive, conduct, and transmit impulses." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0000848 a rdfs:Class ;
  rdfs:label "pons morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the band of nerve fibers in the brain connecting the medulla oblongata and the mesencephalon; this region conveys information about movement from the cerebral hemisphere to the cerebellum." ;
  rdfs:subClassOf obo:VT_0000841 .

obo:VT_0000104 a rdfs:Class ;
  rdfs:label "sphenoid bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the most irregularly shaped bone of the base of the skull." ;
  rdfs:subClassOf obo:VT_0005246 , obo:VT_0005273 .

obo:VT_0003437 a rdfs:Class ;
  rdfs:label "carotid body morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a small epithelioid structure consisting of a small cluster of chemoreceptive and supporting cells located near the bifurcation of the common carotid artery that serves as a chemoreceptive organ that senses the pH, carbon dioxide, and oxygen concentrations in the blood and plays a crucial role in their homeostatic control." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0000036 a rdfs:Class ;
  rdfs:label "tricuspid valve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the valve between the right atrium and the right ventricle of the heart." ;
  rdfs:subClassOf obo:VT_0000025 .

obo:VT_0007047 a rdfs:Class ;
  rdfs:label "aorta configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0000272 .

obo:VT_0003506 a rdfs:Class ;
  rdfs:label "growth hormone secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of growth hormone." ;
  rdfs:subClassOf obo:VT_0001746 .

obo:VT_0000797 a rdfs:Class ;
  rdfs:label "supramarginal gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the frontal lobe that is involved in perception based on sensory stimuli." ;
  rdfs:subClassOf obo:VT_0000794 .

obo:VT_0003485 a rdfs:Class ;
  rdfs:label "channel response threshold" ;
  rdfs:comment "The point at which a stimulus first elicits a recordable response recorded from ion channels." ;
  rdfs:subClassOf obo:VT_0003484 .

obo:VT_0003610 a rdfs:Class ;
  rdfs:label "scrotum cell quantity" ;
  rdfs:comment "The proportion or number of cells in the external sac of skin that encloses the testes." ;
  rdfs:subClassOf obo:VT_0002669 .

obo:VT_0011352 a rdfs:Class ;
  rdfs:label "wattle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the fleshy dewlap or caruncle hanging from various parts of the head or neck in several groups of birds, goats, and other animals." ;
  rdfs:subClassOf obo:VT_0011351 .

obo:VT_0002433 a rdfs:Class ;
  rdfs:label "T-helper 1 cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the type of T-helper cell whose cytokine production favors cellular immune responses and delayed type hypersensitivity." ;
  rdfs:subClassOf obo:VT_0002432 .

obo:VT_0002975 a rdfs:Class ;
  rdfs:label "blood vessel smooth muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the nonstriated, involuntary muscle tissue of the structures that convey blood throughout the body." ;
  rdfs:subClassOf obo:VT_0005592 .

obo:VT_0001201 a rdfs:Class ;
  rdfs:label "skin translucence" ;
  rdfs:comment "The ability of light to be transmitted diffusely through the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0002440 a rdfs:Class ;
  rdfs:label "memory B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a distinctly differentiated long-lived B cell that is readily activated upon re-encounter of its antigenic determinant; memory B cells differentiate from antigen-activated B cells which have been selected for expression of higher affinity immunoglobulin." ;
  rdfs:subClassOf obo:VT_0008171 .

obo:VT_0005584 a rdfs:Class ;
  rdfs:label "enzyme/coenzyme activity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree of function or response of any of these proteins, or their cofactors, which act as catalysts to induce chemical changes in other substances." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0004330 a rdfs:Class ;
  rdfs:label "saccular macula morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the oval neuroepithelial sensory receptor in the anterior wall of the saccule; hair cells of the neuroepithelium support the statoconial membrane and have terminal arborizations of vestibular nerve fibers around their bodies." ;
  rdfs:subClassOf obo:VT_0006089 .

obo:VT_0002651 a rdfs:Class ;
  rdfs:label "sciatic nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the nerve which originates in the lumbar and sacral spinal cord and supplies motor and sensory innervation to the lower extremity." ;
  rdfs:subClassOf obo:VT_0001077 .

obo:VT_0004944 a rdfs:Class ;
  rdfs:label "B cell negative selection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process through which B cells which react strongly with self-antigens are eliminated, usually through anergy or deletion." ;
  rdfs:subClassOf obo:VT_0004942 .

obo:VT_0005446 a rdfs:Class ;
  rdfs:label "synaptic epinephrine release trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the secretion across synapses of the active sympathomimetic hormone that stimulates both the alpha- and beta- adrenergic systems, causes systemic vasoconstriction and gastrointestinal relaxation, stimulates the heart, and dilates bronchi and cerebral vessels." ;
  rdfs:subClassOf obo:VT_0005445 .

obo:VT_0011324 a rdfs:Class ;
  rdfs:label "ventral cochlear nucleus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the ventral cochlear nucleus, placed between the two divisions of the cochlear nerve, on the ventral aspect of the peduncle. This nucleus serves primarily as a relay station for ascending auditory information. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011253 .

obo:VT_0001259 a rdfs:Class ;
  rdfs:label "body mass" ;
  rdfs:comment "The amount of matter in the body of an organism." ;
  rdfs:subClassOf obo:VT_0100005 .

obo:VT_0005073 a rdfs:Class ;
  rdfs:label "granulocyte migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement of cells with abundant granules in the cytoplasm, including neutrophils, eosinophils, or basophils, from point to point." ;
  rdfs:subClassOf obo:VT_0002462 , obo:VT_0003156 .

obo:VT_0010689 a rdfs:Class ;
  rdfs:label "pericardial fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the encapsulated adipose tissue found around the heart." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0005437 a rdfs:Class ;
  rdfs:label "blood glycogen amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the polysaccharide which is the storage form for glucose in the liver and muscles; readily converted to glucose when blood glucose level decreases." ;
  rdfs:subClassOf obo:VT_0010903 .

obo:VT_0004221 a rdfs:Class ;
  rdfs:label "iridocorneal angle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, or pattern of any of the acute angles occurring between the iris and the cornea at the periphery of the anterior chamber of the eye." ;
  rdfs:subClassOf obo:VT_0005198 .

obo:VT_0000934 a rdfs:Class ;
  rdfs:label "telencephalon development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the anterior division of the embryonic prosencephalon during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003232 .

obo:VT_0010658 a rdfs:Class ;
  rdfs:label "comb shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the vascular, red cutaneous structure attached in a sagittal plane to the dorsum of the skull of domestic fowl." ;
  rdfs:subClassOf obo:VT_0010656 .

obo:VT_0001529 a rdfs:Class ;
  rdfs:label "vocalization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to produce sound from the vocal organs." ;
  rdfs:subClassOf obo:VT_0010447 .

obo:VT_0000939 a rdfs:Class ;
  rdfs:label "motor neuron quantity" ;
  rdfs:comment "The proportion or number of cells that innervate an effector (muscle or glandular) tissue and are responsible for transmission of motor impulses." ;
  rdfs:subClassOf obo:VT_0000937 , obo:VT_0015026 .

obo:VT_0004193 a rdfs:Class ;
  rdfs:label "kidney papilla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the apex of the renal pyramid that projects into a calyx." ;
  rdfs:subClassOf obo:VT_0004192 .

obo:VT_0001092 a rdfs:Class ;
  rdfs:label "trigeminal ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of sensory neuron cell bodies associated with the trigeminal nerve (fifth cranial nerve)." ;
  rdfs:subClassOf obo:VT_0000960 , obo:VT_0001081 .

obo:VT_0006385 a rdfs:Class ;
  rdfs:label "memory T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the set of distinctly differentiated long-lived T cells that have the phenotype CD45RO-positive and CD127-positive." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0006100 a rdfs:Class ;
  rdfs:label "tegmentum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the floor of the midbrain which extends from the substantia nigra to the level of the cerebral aqueduct." ;
  rdfs:subClassOf obo:VT_0000897 .

obo:VT_0004240 a rdfs:Class ;
  rdfs:label "temporalis muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the superior-most masticatory muscle." ;
  rdfs:subClassOf obo:VT_0004239 , obo:VT_0010113 .

obo:VT_0010477 a rdfs:Class ;
  rdfs:label "blood lactate dehydrogenase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which catalyzes interconversion of pyruvate and lactate with concomitant interconversion of NADH and NAD+." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0010608 a rdfs:Class ;
  rdfs:label "thyroid gland mass" ;
  rdfs:comment "The amount of matter in the two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:VT_0005355 .

obo:VT_0003599 a rdfs:Class ;
  rdfs:label "penis size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organ of copulation and urination in the male." ;
  rdfs:subClassOf obo:VT_0005187 .

obo:VT_0003878 a rdfs:Class ;
  rdfs:label "ear physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of and processes in the organ of hearing and equilibrium." ;
  rdfs:subClassOf obo:VT_0015057 .

obo:VT_1000425 a rdfs:Class ;
  rdfs:label "skin mass" ;
  rdfs:comment "The amount of matter in the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0000887 a rdfs:Class ;
  rdfs:label "granule layer lamination integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the deepest of the three layers of the cerebellum that contains granule cells." ;
  rdfs:subClassOf obo:VT_0000886 .

obo:VT_0000944 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell afferent innervation morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the afferent terminals and/or their synapses in the cochlear OHC region." ;
  rdfs:subClassOf obo:VT_0004399 .

obo:VT_0007036 a rdfs:Class ;
  rdfs:label "pericardium orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement in relation to the heart and/or great vessels of the  fibroserous membrane covering the heart and beginning of the great vessels." ;
  rdfs:subClassOf obo:VT_0000288 .

obo:VT_0002376 a rdfs:Class ;
  rdfs:label "dendritic cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the immunocompetent cells of the lymphoid and hemopoietic systems and skin, which function to process antigens and present them to T cells, thus stimulating cellular immunity." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0011085 a rdfs:Class ;
  rdfs:label "outer ear ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the auricles or external acoustic meatus. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011084 .

obo:VT_0001505 a rdfs:Class ;
  rdfs:label "body posture trait" ;
  rdfs:comment "Any measurable or observable characteristic related to carriage of the body." ;
  rdfs:subClassOf obo:VT_0001504 .

obo:VT_0008622 a rdfs:Class ;
  rdfs:label "blood interleukin-3 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a multi-lineage cell growth factor secreted by lymphocytes, epithelial cells and astrocytes which stimulates clonal proliferation and differentiation of various types of blood and tissue cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0004113 a rdfs:Class ;
  rdfs:label "aortic arch morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the descending aorta proceeding from the arch of the aorta and extending to the diaphragm." ;
  rdfs:subClassOf obo:VT_0000272 .

obo:VT_0010227 a rdfs:Class ;
  rdfs:label "ileum mucosa thickness" ;
  rdfs:comment "The distance between the surfaces of the portion of the small intestine that extends from the jejunum to the colon." ;
  rdfs:subClassOf obo:VT_0002581 , obo:VT_0010223 .

obo:VT_0005345 a rdfs:Class ;
  rdfs:label "blood corticosterone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this adrenocortical steroid; induces glycogen deposition and regulates sodium conservation and potassium secretion." ;
  rdfs:subClassOf obo:VT_0003366 .

obo:VT_0002625 a rdfs:Class ;
  rdfs:label "heart left ventricle cell size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cells in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0002753 .

obo:VT_0015042 a rdfs:Class ;
  rdfs:label "egg production trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the generation of eggs by an organism; after development of the ovum is complete." ;
  rdfs:subClassOf obo:VT_0003699 .

obo:VT_0010092 a rdfs:Class ;
  rdfs:label "thoracic cage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony and cartilaginous structure enclosing the thoracic cavity, consisting of the thoracic vertebrae, ribs, costal cartilages, and sternum." ;
  rdfs:subClassOf obo:VT_0002114 .

obo:VT_0001388 a rdfs:Class ;
  rdfs:label "stationary movement trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to change body posture or shift a body part." ;
  rdfs:subClassOf obo:VT_0003491 .

obo:VT_0010926 a rdfs:Class ;
  rdfs:label "blood plasminogen activator inhibitor 1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of plasminogen activator inhibitor 1,  the principal inhibitor of tissue plasminogen activator (tPA) and urokinase (uPA), and hence an inhibitor of fibrinolysis." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0002282 a rdfs:Class ;
  rdfs:label "trachea morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tube descending from the larynx and branching into the right and left main bronchi." ;
  rdfs:subClassOf obo:VT_0002132 .

obo:VT_0008112 a rdfs:Class ;
  rdfs:label "monocyte development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and released into the blood." ;
  rdfs:subClassOf obo:VT_0001601 .

obo:VT_0010647 a rdfs:Class ;
  rdfs:label "forelimb muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscle tissue of the anterior/superior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0010106 .

obo:VT_0001874 a rdfs:Class ;
  rdfs:label "epidermis stratum spinosum cell quantity" ;
  rdfs:comment "The proportion or number of cells in the layer between the stratum granulosum and stratum basale in the epidermis." ;
  rdfs:subClassOf obo:VT_0001236 .

obo:VT_0008662 a rdfs:Class ;
  rdfs:label "interleukin-12 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a heterodimeric cytokine that plays a role in innate and adaptive immune responses; it is produced by dendritic cells, macrophages and a variety of other immune cells and plays a role in the stimulation of interferon-gamma production by T-cells and natural killer cells." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0002472 a rdfs:Class ;
  rdfs:label "complement alternative pathway physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the plasma protein cascade triggered by direct contact with pathogen surfaces." ;
  rdfs:subClassOf obo:VT_0002471 .

obo:VT_0004209 a rdfs:Class ;
  rdfs:label "sweet taste sensitivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to perceive a particular flavor or suggestion of something sweet by the chemoreceptors of the gustatory system." ;
  rdfs:subClassOf obo:VT_0001986 .

obo:VT_0003722 a rdfs:Class ;
  rdfs:label "ureter quantity" ;
  rdfs:comment "The proportion or number of tubes that conduct the urine from the renal pelvis to the bladder." ;
  rdfs:subClassOf obo:VT_0000534 .

obo:VT_0008092 a rdfs:Class ;
  rdfs:label "T-helper 2 cell differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which relatively unspecialized cells acquire the specialized features of the type of T-helper cell whose cytokine production promotes defense against extracellular parasites and humoral immune responses typical of allergy." ;
  rdfs:subClassOf obo:VT_0008076 .

obo:VT_0002912 a rdfs:Class ;
  rdfs:label "excitatory postsynaptic potential" ;
  rdfs:comment "The potential detected in postsynaptic cells when an excitatory impulse arrives at the synapse causing depolarization." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_1000244 a rdfs:Class ;
  rdfs:label "obsolete social tendency trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the tendency to choose between freely available food or food in combination with social stimuli in a maze test with several options.
consider: VT:0010455""" .

obo:VT_0010596 a rdfs:Class ;
  rdfs:label "heart left ventricle natriuretic peptide A amount" ;
  rdfs:comment "The proportion, quantity, or volume in the left lower chamber of the heart of the peptide hormone NPPA, which is involved in the control of extracellular fluid volume and electrolyte homeostasis." ;
  rdfs:subClassOf obo:VT_0010561 .

obo:VT_0004300 a rdfs:Class ;
  rdfs:label "organ of Corti supporting cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the highly differentiated epithelial cells with distinctive morphological features surrounding the hair cells in the organ of Corti; inner hair cells (IHCs) are normally surrounded by (inner and outer) phalangeal cells while OHCs are in contact with Deiters and pillar cells; Hensen cells are positioned further laterally in the organ of Corti." ;
  rdfs:subClassOf obo:VT_0000042 .

obo:VT_0001041 a rdfs:Class ;
  rdfs:label "obsolete lacrimal gland cholinergic innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to the gland that secretes tears.
consider: VT:0010100, VT:0010123""" .

obo:VT_0002620 a rdfs:Class ;
  rdfs:label "monocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and released into the blood." ;
  rdfs:subClassOf obo:VT_0008246 , obo:VT_0008248 .

obo:VT_0010164 a rdfs:Class ;
  rdfs:label "obsolete interleukin-6 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of this soluble factor produced by B- and T-cells, with effects on T- and B-cell growth and differentiation, and in acute phase reactions." .

obo:VT_0001070 a rdfs:Class ;
  rdfs:label "abducens nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the 6th cranial nerve, which originates in the abducens nucleus of the pons and sends motor fibers to the lateral rectus muscles of the eye." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0000461 a rdfs:Class ;
  rdfs:label "presacral vertebra quantity" ;
  rdfs:comment "The proportion or number of bony segments of the spinal column anterior/superior to the sacrum/sacral vertebrae." ;
  rdfs:subClassOf obo:VT_0000138 .

obo:VT_0001179 a rdfs:Class ;
  rdfs:label "alveolar septum thickness" ;
  rdfs:comment "The distance between the surfaces of the structure that separates the air sacs (alveoli) in the lung." ;
  rdfs:subClassOf obo:VT_0002270 .

obo:VT_0002673 a rdfs:Class ;
  rdfs:label "sperm quantity" ;
  rdfs:comment "The proportion or number of spermatozoa." ;
  rdfs:subClassOf obo:VT_0002209 , obo:VT_0010042 .

obo:VT_0000742 a rdfs:Class ;
  rdfs:label "ileal smooth muscle contractility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the non-striated, involuntary muscle tissue of the portion of the small intestine that extends from the jejunum to the colon to shorten or to develop increased tension." ;
  rdfs:subClassOf obo:VT_0004005 .

obo:VT_0000596 a rdfs:Class ;
  rdfs:label "liver development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0003943 .

obo:VT_0001169 a rdfs:Class ;
  rdfs:label "bulbourethral gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the gland in males that lies along the prostate gland and secretes a fluid component of the seminal fluid into the urethra." ;
  rdfs:subClassOf obo:VT_0000653 , obo:VT_0001145 .

obo:VT_0002231 a rdfs:Class ;
  rdfs:label "primitive streak morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the midline ridge of the embryonic epiblast that later develops into mesoderm and endoderm." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0002668 a rdfs:Class ;
  rdfs:label "blood potassium amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this alkaline metallic element, the most abundant intracellular ion." ;
  rdfs:subClassOf obo:VT_0000068 , obo:VT_0010998 .

obo:VT_0005592 a rdfs:Class ;
  rdfs:label "blood vessel smooth muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the nonstriated, involuntary muscle tissue of the structures that convey blood throughout the body." ;
  rdfs:subClassOf obo:VT_0000767 , obo:VT_0001614 .

obo:VT_0010793 a rdfs:Class ;
  rdfs:label "kidney ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the kidney. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0003014 , obo:VT_0010558 .

obo:VT_0000021 a rdfs:Class ;
  rdfs:label "outer ear prominence" ;
  rdfs:comment "The physical distance from the outer edge of the outer ear to the head." ;
  rdfs:subClassOf obo:VT_0002177 .

obo:VT_0010386 a rdfs:Class ;
  rdfs:label "milk monoacylglycerol amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of glycerol with an acyl moiety esterified to position 1 or 2; an intermediate in the degradation and synthesis of lipids." ;
  rdfs:subClassOf obo:VT_0010261 .

obo:VT_0010900 a rdfs:Class ;
  rdfs:label "Leydig cell integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural or biochemical soundness of the testosterone-secreting cells in the interstitial area, between the seminiferous tubules, in the testis." ;
  rdfs:subClassOf obo:VT_0002786 .

obo:VT_0005603 a rdfs:Class ;
  rdfs:label "neuron size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the structural and functional units of the nervous system, which consist of the nerve cell body, the dendrites, and the axon." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0010727 a rdfs:Class ;
  rdfs:label "spatial reference memory trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to recall spatial location information from previous encounters or training sessions in order to navigate or perform other behavior using such location cues." ;
  rdfs:subClassOf obo:VT_0002063 .

obo:VT_0011330 a rdfs:Class ;
  rdfs:label "nose pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the organ that is specialized for smell and is part of the respiratory system." ;
  rdfs:subClassOf obo:VT_0002233 .

obo:VT_0010111 a rdfs:Class ;
  rdfs:label "smooth muscle physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in any of the unstriated, involuntary muscle tissue of the internal organs, blood vessels, and other body structures not under willful control." ;
  rdfs:subClassOf obo:VT_0002106 .

obo:VT_0002398 a rdfs:Class ;
  rdfs:label "bone marrow cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells found in the bone marrow." ;
  rdfs:subClassOf obo:VT_0010250 .

obo:VT_0000837 a rdfs:Class ;
  rdfs:label "hypothalamus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the ventral part of the diencephalon extending from the region of the optic chiasm to the caudal border of the mammillary bodies and forming the inferior and lateral walls of the third ventricle; this region regulates the autonomic nervous system via hormone production and release." ;
  rdfs:subClassOf obo:VT_0000830 , obo:VT_0004166 .

obo:VT_0011003 a rdfs:Class ;
  rdfs:label "phosphocholine amount" ;
  rdfs:comment "The proportion, quantity, or volume of the phosphate of choline, and the parent compound of the phosphocholine family; an intermediate in the synthesis of phosphatidylcholine in tissues." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0010636 a rdfs:Class ;
  rdfs:label "vitamin and cofactor metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving a vitamin (organic substance found in food that is necessary in trace amounts for normal metabolic function) or cofactor (atom or molecule essential for the action of the vitamin)." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0011283 a rdfs:Class ;
  rdfs:label "joint molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the articulation point of two or more rigid skeletal components (bones, cartilage, or parts of a single bone)." ;
  rdfs:subClassOf obo:VT_0002932 .

obo:VT_0010081 a rdfs:Class ;
  rdfs:label "maxillary sinus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large pyramidal cavity within the body of the maxilla; its apex is formed by the zygomatic process and its base by the lateral wall of the nose." ;
  rdfs:subClassOf obo:VT_0000455 , obo:VT_0002240 .

obo:VT_0004412 a rdfs:Class ;
  rdfs:label "cochlear potential trait" ;
  rdfs:comment "Any measurable characteristic related to the bioelectric potentials produced by the hair cells of the organ of Corti in response to sound; cochlear microphonics faithfully represent the frequency and intensity of the acoustic stimulation." ;
  rdfs:subClassOf obo:VT_0000365 , obo:VT_0000483 .

obo:VT_0004263 a rdfs:Class ;
  rdfs:label "limb posture trait" ;
  rdfs:comment "Any measurable characteristic related to the position of the limbs, the projecting, paired, jointed appendages of the body used for locomotion or grasping, relative to the body." ;
  rdfs:subClassOf obo:VT_0001504 .

obo:VT_0003283 a rdfs:Class ;
  rdfs:label "digestive organ orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the alimentary tract organs in relation to each other or to the body." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0010237 a rdfs:Class ;
  rdfs:label "forestomach mass" ;
  rdfs:comment "The amount of matter in the large fermentation chamber situated anteriorly to the stomach in some species." ;
  rdfs:subClassOf obo:VT_0010235 .

obo:VT_0004340 a rdfs:Class ;
  rdfs:label "scapula length" ;
  rdfs:comment "The distance from point to point along the longest axis of either or both of the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0004343 .

obo:VT_0011119 a rdfs:Class ;
  rdfs:label "embryonic cell/tissue ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in any cell type or tissue in the embryo.  Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011118 .

obo:VT_0011341 a rdfs:Class ;
  rdfs:label "vertebra size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bony segments of the spinal column." ;
  rdfs:subClassOf obo:VT_0000137 .

obo:VT_0002997 a rdfs:Class ;
  rdfs:label "seminal gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the two folded, sac shaped glands that are diverticula of the ductus deferens." ;
  rdfs:subClassOf obo:VT_0000655 , obo:VT_0002059 .

obo:VT_0005196 a rdfs:Class ;
  rdfs:label "posterior uvea morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the rear, or dorsal, portion of the vascular, pigmentary, or middle coat of the eye, includes the choroid." ;
  rdfs:subClassOf obo:VT_0002864 , obo:VT_0005197 .

obo:VT_0001009 a rdfs:Class ;
  rdfs:label "paravertebral ganglion cell quantity" ;
  rdfs:comment "The proportion or number of cells in the group of neuronal cell bodies of the autonomic nervous system that are located at intervals along the sympathetic trunks." ;
  rdfs:subClassOf obo:VT_0015050 .

obo:VT_0000861 a rdfs:Class ;
  rdfs:label "barrel cortex organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the discrete functional units of the somatosensory cortex that processes tactile information derived from the vibrissae." ;
  rdfs:subClassOf obo:VT_0003989 .

obo:VT_0008588 a rdfs:Class ;
  rdfs:label "blood interleukin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of soluble factors which stimulate growth-related activities of leukocytes as well as other cell types; they enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli." ;
  rdfs:subClassOf obo:VT_0005416 , obo:VT_0008751 .

obo:VT_0002679 a rdfs:Class ;
  rdfs:label "corpus luteum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the yellow endocrine body formed in the ovary after follicle rupture." ;
  rdfs:subClassOf obo:VT_0001126 .

obo:VT_0001542 a rdfs:Class ;
  rdfs:label "bone strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of bone to withstand the application of force without yielding or breaking." ;
  rdfs:subClassOf obo:VT_0000070 .

obo:VT_0010201 a rdfs:Class ;
  rdfs:label "stomach muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the layer of smooth excitable and contractile fibers of the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0003883 .

obo:VT_0000166 a rdfs:Class ;
  rdfs:label "chondrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of non-dividing cartilage cells." ;
  rdfs:subClassOf obo:VT_0000163 .

obo:VT_0005450 a rdfs:Class ;
  rdfs:label "energy expenditure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the utilization of calories." ;
  rdfs:subClassOf obo:VT_0005448 .

obo:VT_0015069 a rdfs:Class ;
  rdfs:label "appendage development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of an external body part that projects from the body." ;
  rdfs:subClassOf obo:VT_0015067 .

obo:VT_0010499 a rdfs:Class ;
  rdfs:label "calcium amount" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportion, quantity or volume of this metallic bivalent element with atomic symbol Ca and atomic number 20." ;
  rdfs:subClassOf obo:VT_0000192 .

obo:VT_0010875 a rdfs:Class ;
  rdfs:label "brain norepinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the brain of a catecholamine hormone that functions as a neurotransmitter and is the precursor to epinephrine." ;
  rdfs:subClassOf obo:VT_0010585 .

obo:VT_0000606 a rdfs:Class ;
  rdfs:label "hepatocyte quantity" ;
  rdfs:comment "The proportion or number of the main structural components of the liver; these are specialized epithelial cells normally organized into interconnected plates called lobules." ;
  rdfs:subClassOf obo:VT_0000607 .

obo:VT_0011145 a rdfs:Class ;
  rdfs:label "blood interleukin-19 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine which is a member of the IL-10 cytokine subfamily and involved in the inflammatory response." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0010948 a rdfs:Class ;
  rdfs:label "tympanic cavity morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small, air-filled, membrane-lined chamber bound externally by the tympanic membrane and containing three osicles that vibrate in response to sound waves." ;
  rdfs:subClassOf obo:VT_0000049 .

obo:VT_0005461 a rdfs:Class ;
  rdfs:label "dendritic cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of 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:VT_0008195 , obo:VT_0008246 .

obo:VT_0010696 a rdfs:Class ;
  rdfs:label "preovulatory follicle quantity" ;
  rdfs:comment "The proportion or number of ovarian structures containing an oocyte at the last stage of growth, characterized in mammals by the formation of a cavity (antrum) filled with follicular fluid and in birds by the accumulation of vitellus." ;
  rdfs:subClassOf obo:VT_0001131 .

obo:VT_0010070 a rdfs:Class ;
  rdfs:label "distal convoluted tubule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the renal tubule that extends from the ascending limb of Henle's loop to a collecting tubule." ;
  rdfs:subClassOf obo:VT_0010067 .

obo:VT_0010429 a rdfs:Class ;
  rdfs:label "renal fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the kidney." ;
  rdfs:subClassOf obo:VT_0015006 .

obo:VT_0015070 a rdfs:Class ;
  rdfs:label "appendage physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in an external body part that projects from the body." ;
  rdfs:subClassOf obo:VT_0015068 .

obo:VT_0011186 a rdfs:Class ;
  rdfs:label "lumbar vertebra molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0010494 .

obo:VT_0010129 a rdfs:Class ;
  rdfs:label "esophagus mass" ;
  rdfs:comment "The amount of matter in the part of the digestive canal through which food passes from the pharynx to the stomach." ;
  rdfs:subClassOf obo:VT_0000006 .

obo:VT_0005382 a rdfs:Class ;
  rdfs:label "head trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0100003 .

obo:VT_0005334 a rdfs:Class ;
  rdfs:label "fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue." ;
  rdfs:subClassOf obo:VT_0000003 .

obo:VT_0000494 a rdfs:Class ;
  rdfs:label "cecum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the large sac at the ileum and large intestine junction." ;
  rdfs:subClassOf obo:VT_0000489 .

obo:VT_0008343 a rdfs:Class ;
  rdfs:label "gamma-delta T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of an immature or mature T cell expressing a gamma-delta T cell receptor complex." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0010029 a rdfs:Class ;
  rdfs:label "milk alpha-lactalbumin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of alpha-lactalbumin, an enzyme that catalyzes lactose synthesis in mammary epithelial cells." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0011138 a rdfs:Class ;
  rdfs:label "carotid body ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the small epithelioid structure consisting of a small cluster of chemoreceptive and supporting cells located near the bifurcation of the common carotid artery that serves as a chemoreceptive organ that senses the pH, carbon dioxide, and oxygen concentrations in the blood and plays a crucial role in their homeostatic control. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011137 .

obo:VT_0000674 a rdfs:Class ;
  rdfs:label "sweat gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the coiled glands of the skin that secrete sweat." ;
  rdfs:subClassOf obo:VT_0002163 , obo:VT_0010007 .

obo:VT_0011063 a rdfs:Class ;
  rdfs:label "temporomandibular joint molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the  temporomandibular joint, the synovial joint of the jaw that connects the mandible to the temporal bone." ;
  rdfs:subClassOf obo:VT_0011283 .

obo:VT_0011201 a rdfs:Class ;
  rdfs:label "muscle beta-alanine content" ;
  rdfs:comment "The proportion, quantity, or volume of an amino acid formed by the degradation of dihydrouracil and carnosine detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0002209 a rdfs:Class ;
  rdfs:label "germ cell quantity" ;
  rdfs:comment "Any measurable characteristic related to the proportion or numbers of any of the reproductive (generative) cells of a multicellular organism, whether they are undifferentiated or fully differentiated." ;
  rdfs:subClassOf obo:VT_0002208 .

obo:VT_0011023 a rdfs:Class ;
  rdfs:label "adipose ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in fat-storing cells/tissue. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010006 , obo:VT_0011060 , obo:VT_0011284 .

obo:VT_0011238 a rdfs:Class ;
  rdfs:label "tibialis anterior ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the muscle of the shin that is responsible for dorsiflexion and inversion of the foot. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0003083 , obo:VT_0011059 .

obo:VT_0002991 a rdfs:Class ;
  rdfs:label "sebaceous gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in any of the small, sacculated organs found within the dermis that normally secrete sebum." ;
  rdfs:subClassOf obo:VT_0002164 .

obo:VT_0002819 a rdfs:Class ;
  rdfs:label "pulp cavity morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the central hollow space of a tooth." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0010959 a rdfs:Class ;
  rdfs:label "urine integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the biochemical soundness of the internal equilibrium in  the fluid and dissolved substances excreted by the kidneys." ;
  rdfs:subClassOf obo:VT_0010912 .

obo:VT_0010294 a rdfs:Class ;
  rdfs:label "milk chloride amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of any binary compound of chlorine." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0009629 a rdfs:Class ;
  rdfs:label "brachial lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lymph nodes located along the brachial vein that receive drainage from most of the free upper limb and send efferent vessels to the central axillary lymph nodes." ;
  rdfs:subClassOf obo:VT_0005231 , obo:VT_0009631 .

obo:VT_0003825 a rdfs:Class ;
  rdfs:label "pillar cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the supporting cells that form the inner and outer walls of the tunnel in the organ of Corti." ;
  rdfs:subClassOf obo:VT_0004300 .

obo:VT_0002631 a rdfs:Class ;
  rdfs:label "epididymis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens." ;
  rdfs:subClassOf obo:VT_0001145 .

obo:VT_0006259 a rdfs:Class ;
  rdfs:label "foliate papillae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the papillae located on the sides of the tongue." ;
  rdfs:subClassOf obo:VT_0006256 .

obo:VT_0004101 a rdfs:Class ;
  rdfs:label "brain interneuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that exclusively interact with other neurons in the brain; this includes most brain neuronal cell types." ;
  rdfs:subClassOf obo:VT_0002152 , obo:VT_0006004 .

obo:VT_0011240 a rdfs:Class ;
  rdfs:label "islet of Langerhans ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the cellular masses consisting of several to several hundred cells in the interstitial tissue of the pancreas; they are composed of five different cell types that make up the endocrine portion of the pancreas. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0005215 , obo:VT_0011032 .

obo:VT_0015110 a rdfs:Class ;
  rdfs:label "synapse morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the membrane junction site of a nerve cell to a target cell, such as another nerve cell, an effector cell, or a sensory receptor cell; transmission of nerve impulses may be mediated by chemical or by electrical means." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0015036 a rdfs:Class ;
  rdfs:label "reproductive life span" ;
  rdfs:comment "The period of time in which an organism can produce offspring." ;
  rdfs:subClassOf obo:VT_0005372 , obo:VT_0010464 .

obo:VT_0002338 a rdfs:Class ;
  rdfs:label "pulmonary ventilation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the total volume of gas per minute inspired or expired." ;
  rdfs:subClassOf obo:VT_0002314 .

obo:VT_0000126 a rdfs:Class ;
  rdfs:label "tooth strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of teeth to withstand the application of force without yielding or breaking." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0011318 a rdfs:Class ;
  rdfs:label "kidney cortex molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the outer area of the kidney, which conains the glomeruli and the capsules that enclose them, as well as the proximal and distal tubules." ;
  rdfs:subClassOf obo:VT_0000521 , obo:VT_0010558 .

obo:VT_0010820 a rdfs:Class ;
  rdfs:label "comb mass" ;
  rdfs:comment "The amount of matter in the vascular, red cutaneous structure attached in a sagittal plane to the dorsum of the skull of domestic fowl." ;
  rdfs:subClassOf obo:VT_0010657 .

obo:VT_0000923 a rdfs:Class ;
  rdfs:label "roof plate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a transient group of neuroepithelial cells located at the dorsal midline of the neural tube that profoundly influences the development of the vertebrate central nervous system." ;
  rdfs:subClassOf obo:VT_0002151 .

obo:VT_0004296 a rdfs:Class ;
  rdfs:label "type IV spiral ligament fibrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the type IV spiral ligament fibrocytes found in the triangular space inferior to the basilar crest." ;
  rdfs:subClassOf obo:VT_0004292 .

obo:VT_0002899 a rdfs:Class ;
  rdfs:label "stamina trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the duration of activity (physical or mental) an individual can endure." ;
  rdfs:subClassOf obo:VT_1000152 .

obo:VT_0005595 a rdfs:Class ;
  rdfs:label "blood vessel smooth muscle physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the nonstriated, involuntary muscle tissue of the structures that convey blood throughout the body." ;
  rdfs:subClassOf obo:VT_0010111 .

obo:VT_0002827 a rdfs:Class ;
  rdfs:label "kidney corpuscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a tuft of glomerular capillaries and the glomerular capsule (Bowman's capsule) that encloses it." ;
  rdfs:subClassOf obo:VT_0000521 , obo:VT_0003881 .

obo:VT_0000466 a rdfs:Class ;
  rdfs:label "esophageal epithelium cell quantity" ;
  rdfs:comment "The proportion or number of cells in the epithelial layer of the esophagus." ;
  rdfs:subClassOf obo:VT_0000468 .

obo:VT_0010175 a rdfs:Class ;
  rdfs:label "obsolete C8 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C8." .

obo:VT_0008120 a rdfs:Class ;
  rdfs:label "myeloid dendritic cell quantity" ;
  rdfs:comment "The proportion or number of phagocytic cells of the myeloid lineage that capture antigens in the periphery and then migrate to the lymphoid organs and secrete cytokines to initiate immune responses." ;
  rdfs:subClassOf obo:VT_0006173 .

obo:VT_0002084 a rdfs:Class ;
  rdfs:label "developmental patterning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process in the embryo that results in the creation of defined areas or spaces to which cells respond and are eventually instructed to differentiate." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0010353 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-9,cis-11-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a trans double bond at C-9, and a cis double bond at C-11." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0011121 a rdfs:Class ;
  rdfs:label "chondrocyte ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in non-dividing (terminally differentiated) cartilage cells. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011120 .

obo:VT_0000689 a rdfs:Class ;
  rdfs:label "spleen morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organ that functions to filter blood and to store red corpuscles and platelets." ;
  rdfs:subClassOf obo:VT_0002722 , obo:VT_0010250 .

obo:VT_0010878 a rdfs:Class ;
  rdfs:label "blood bile acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any member of a group of hydroxy-5beta-cholanic acids occurring in bile, where they are present as the sodium salts of their amides with glycine or taurine." ;
  rdfs:subClassOf obo:VT_0010582 , obo:VT_0010917 .

obo:VT_0005361 a rdfs:Class ;
  rdfs:label "pituitary gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the pituitary gland, the compound gland suspended from the base of the hypothalamus, which secretes somatotropins, prolactin, TSH (thyroid-stimulating hormone), gonadotropins, adrenal corticotropin, and other related peptides." ;
  rdfs:subClassOf obo:VT_0000633 , obo:VT_0011083 .

obo:VT_0010088 a rdfs:Class ;
  rdfs:label "pubis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anteroinferior portion of the hip bone, which fuses with the ilium and ischium." ;
  rdfs:subClassOf obo:VT_0010090 .

obo:VT_0005144 a rdfs:Class ;
  rdfs:label "blood VLDL cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the lipoprotein:cholesterol complex that normally transports triglycerides from the intestine and liver to muscle and adipose tissue." ;
  rdfs:subClassOf obo:VT_0000180 .

obo:VT_0010868 a rdfs:Class ;
  rdfs:label "hypothalamus dopamine amount" ;
  rdfs:comment "The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0010877 .

obo:VT_0002370 a rdfs:Class ;
  rdfs:label "thymus trabecula morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the thymic connective tissue which extends into the parenchyma." ;
  rdfs:subClassOf obo:VT_0000703 .

obo:VT_0010818 a rdfs:Class ;
  rdfs:label "comb height" ;
  rdfs:comment "The vertical dimension of the vascular, red cutaneous structure attached in a sagittal plane to the dorsum of the skull of domestic fowl." ;
  rdfs:subClassOf obo:VT_0010657 .

obo:VT_1000740 a rdfs:Class ;
  rdfs:label "rump width" ;
  rdfs:comment "The distance from side to side between the caudal protrusions of the pelvis, viewed from behind." ;
  rdfs:subClassOf obo:VT_1000739 .

obo:VT_0005092 a rdfs:Class ;
  rdfs:label "double-positive T cell quantity" ;
  rdfs:comment "The proportion or number of the subset of T cells found in the thymus that express both CD4 and CD8." ;
  rdfs:subClassOf obo:VT_0002408 , obo:VT_0006387 .

obo:VT_0010551 a rdfs:Class ;
  rdfs:label "uvea integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the pigmented vascular coat of the eyeball, consisting of the iris, ciliary body, and choroid." ;
  rdfs:subClassOf obo:VT_0005197 .

obo:VT_1000414 a rdfs:Class ;
  rdfs:label "diaphragm mass" ;
  rdfs:comment "The amount of matter in the thin musculomebranous barrier that separates the abdominal and thoracic cavities." ;
  rdfs:subClassOf obo:VT_0010115 .

obo:VT_0015095 a rdfs:Class ;
  rdfs:label "sensory trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to receive a sensory stimulus, convert it to a molecular signal, and recognize and characterize the signal, or the morphology of the structures involved in any of these events." ;
  rdfs:subClassOf obo:VT_1000781 .

obo:VT_0003361 a rdfs:Class ;
  rdfs:label "blood gonadotropin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the peptide hormones that stimulate gonadal functions such as gametogenesis and sex steroid hormone production in the ovary and the testis." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010550 a rdfs:Class ;
  rdfs:label "hypodermis integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the irregular layer of adipose and connective tissue, stroma, or membrane immediately deep to the skin and superficial to the deep fascia; usually consists primarily of either just loose connective tissue, or a fatty layer that may also include a muscle layer, and/or a fibrous layer; may also occur as a membranous layer only, being nearly devoid of fat." ;
  rdfs:subClassOf obo:VT_0003705 .

obo:VT_0008551 a rdfs:Class ;
  rdfs:label "blood interferon-gamma amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the major interferon produced by mitogenically or antigenically stimulated lymphocytes that is involved in immunoregulation." ;
  rdfs:subClassOf obo:VT_0008548 .

obo:VT_0005168 a rdfs:Class ;
  rdfs:label "female meiosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of nuclear division that results in ova with one half the normal chromosome number of the original cell." ;
  rdfs:subClassOf obo:VT_0001930 , obo:VT_0001931 .

obo:VT_0002845 a rdfs:Class ;
  rdfs:label "aorta mass" ;
  rdfs:comment "The amount of matter in the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0007090 .

obo:VT_0010510 a rdfs:Class ;
  rdfs:label "lumbar vertebra mass" ;
  rdfs:comment "The amount of matter in the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0010518 , obo:VT_0011342 .

obo:VT_0010447 a rdfs:Class ;
  rdfs:label "emission behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the actions or reactions by which an organism produces or releases matter or energy." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0002726 a rdfs:Class ;
  rdfs:label "pulmonary vein morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the blood vessels that return oxygenated blood from the lungs to the left atrium of the heart." ;
  rdfs:subClassOf obo:VT_0002725 .

obo:VT_0006277 a rdfs:Class ;
  rdfs:label "parasympathetic nervous system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the craniosacral portion of the autonomic nervous system." ;
  rdfs:subClassOf obo:VT_0006276 .

obo:VT_0001968 a rdfs:Class ;
  rdfs:label "tactile sensory behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the actions or reactions of an organism in response to a tactile stimulus." ;
  rdfs:subClassOf obo:VT_0002067 .

obo:VT_0004124 a rdfs:Class ;
  rdfs:label "Purkinje fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cardiac muscle fibers composing the terminal portion of the heart conduction system located in the ventricle." ;
  rdfs:subClassOf obo:VT_0004123 .

obo:VT_0001676 a rdfs:Class ;
  rdfs:label "apical ectodermal ridge development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the multilayered ectodermal region at the tip of a limb bud necessary for the proper development of the underlying mesenchyme." ;
  rdfs:subClassOf obo:VT_0001675 .

obo:VT_0004374 a rdfs:Class ;
  rdfs:label "radius curvature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree or shape of the bend in the bone situated on the lateral side of the ulna in the forelimb." ;
  rdfs:subClassOf obo:VT_0000552 .

obo:VT_0005070 a rdfs:Class ;
  rdfs:label "natural killer cell cytolysis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of natural killer cells to induce pathological breakdown of target cells by the destruction of their outer membrane." ;
  rdfs:subClassOf obo:VT_0005069 .

obo:VT_0000696 a rdfs:Class ;
  rdfs:label "Peyer's patch morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the protruding lymphoid tissue located on the mucosa of the small intestine that is composed of densely packed B cell follicles." ;
  rdfs:subClassOf obo:VT_0002378 .

obo:VT_0011279 a rdfs:Class ;
  rdfs:label "psoas muscle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in a powerful flexor of the thigh at the hip joint (psoas major) and a weak flexor of the trunk and lumbar spinal column (psoas minor). Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011059 .

obo:VT_0000619 a rdfs:Class ;
  rdfs:label "salivary gland epithelial cell quantity" ;
  rdfs:comment "The proportion or number of cells in the epithelium of the salivary gland." ;
  rdfs:subClassOf obo:VT_0000613 .

obo:VT_0010591 a rdfs:Class ;
  rdfs:label "brain campesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the brain (one of the two components of the central nervous system and the center of thought and emotion) of a phytosterol with the formula C28H48O." ;
  rdfs:subClassOf obo:VT_0010590 .

obo:VT_0010395 a rdfs:Class ;
  rdfs:label "endometrium thickness" ;
  rdfs:comment "The distance between the surfaces of the glandular epithelium of the uterus." ;
  rdfs:subClassOf obo:VT_0001120 .

obo:VT_0002759 a rdfs:Class ;
  rdfs:label "caudal vertebra morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony segments of the tail; in tailless vertebrates, these vertebrae may be united to form the coccyx." ;
  rdfs:subClassOf obo:VT_0002111 .

obo:VT_0003409 a rdfs:Class ;
  rdfs:label "hypertrophic chondrocyte zone thickness" ;
  rdfs:comment "The distance between the surfaces of the layer of the epiphyseal plate where no cell division occurs and chondrocytes begin to terminally differentiate." ;
  rdfs:subClassOf obo:VT_0000165 .

obo:VT_0000032 a rdfs:Class ;
  rdfs:label "urine total protein amount" ;
  rdfs:comment "The total proportion, quantity, or volume in urine of macromolecules consisting of long chains of amino acids in peptide linkage." ;
  rdfs:subClassOf obo:VT_0005160 .

obo:VT_0011041 a rdfs:Class ;
  rdfs:label "small intestine molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the upper portion of the digestive tract, between the stomach and the large intestine." ;
  rdfs:subClassOf obo:VT_0000496 .

obo:VT_0010099 a rdfs:Class ;
  rdfs:label "enteric cholinergic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers that utilize acetylcholine as a neurotransmitter and transmit impulses to the alimentary tube." ;
  rdfs:subClassOf obo:VT_0010041 .

obo:VT_0010807 a rdfs:Class ;
  rdfs:label "feather pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the surface covering of birds, made of keratin." ;
  rdfs:subClassOf obo:VT_1000664 .

obo:VT_0002259 a rdfs:Class ;
  rdfs:label "epiglottis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the most superior of the laryngeal cartilages, which is found at the root of the tongue and folds back over the entrance to the larynx during swallowing." ;
  rdfs:subClassOf obo:VT_0002256 .

obo:VT_0000428 a rdfs:Class ;
  rdfs:label "craniofacial morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the region of the body that includes the front part of the head from the chin to the top of the forehead, where the mouth, eyes, nose, and other features are located, and the part of the skull enclosing the brain." ;
  rdfs:subClassOf obo:VT_0000432 .

obo:VT_0005010 a rdfs:Class ;
  rdfs:label "CD8-positive T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the regulatory subset of T lymphocytes that are involved in MHC class I restricted interactions." ;
  rdfs:subClassOf obo:VT_0002435 .

obo:VT_0011160 a rdfs:Class ;
  rdfs:label "extensor digitorum longus muscle mass" ;
  rdfs:comment "The amount of matter in the penniform muscle of the lateral front part of the leg responsible for extension of the toes and dorsiflexion of the ankle." ;
  rdfs:subClassOf obo:VT_0004246 , obo:VT_1000712 .

obo:VT_1000523 a rdfs:Class ;
  rdfs:label "adipose fatty acid C18:3 n-3 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an omega-3, polyunsaturated fatty acid (C18H30O2), with three carbon-carbon double bonds, present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005285 .

obo:VT_0008713 a rdfs:Class ;
  rdfs:label "cytokine amount" ;
  rdfs:comment "The proportion, quantity, or volume of any of the non-antibody proteins made by inflammatory leukocytes and some non-leukocytic cells that affect the behavior of other cells." ;
  rdfs:subClassOf obo:VT_0010034 .

obo:VT_0001725 a rdfs:Class ;
  rdfs:label "umbilical cord morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the connective stalk between the fetus and the placenta." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0000988 a rdfs:Class ;
  rdfs:label "Pacinian corpuscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the rapidly adapting mechanoreceptors found in subcutaneous tissue beneath both hairy and glabrous skin, and which normally contain an afferent nerve fiber surrounded by a capsule with multiple concentric layers." ;
  rdfs:subClassOf obo:VT_0000973 .

obo:VT_0008778 a rdfs:Class ;
  rdfs:label "lymphangiogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of lymphatic vessels, tubular vessels involved in the transport of lymph and lymphocytes." ;
  rdfs:subClassOf obo:VT_0010179 .

obo:VT_0004311 a rdfs:Class ;
  rdfs:label "otic vesicle cell quantity" ;
  rdfs:comment "The proportion or number of the cells in the paired epithelial sacs formed from the otic placode that give rise to the structures of the inner ear." ;
  rdfs:subClassOf obo:VT_0006030 .

obo:VT_0000483 a rdfs:Class ;
  rdfs:label "sensorineural hearing physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes involved in the form of hearing due to processes occurring in the auditory division of cranial nerve VIII or the inner ear." ;
  rdfs:subClassOf obo:VT_0002104 .

obo:VT_0010256 a rdfs:Class ;
  rdfs:label "colostrum trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the first secretion of the mammary gland before milk production; provides energy and passive immunity to newborn offspring." ;
  rdfs:subClassOf obo:VT_0000000 .

obo:VT_0002698 a rdfs:Class ;
  rdfs:label "sclera morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fibrous, outer envelope of the eyeball, covering it entirely excepting the segment covered anteriorly by the cornea." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0001100 a rdfs:Class ;
  rdfs:label "vagus ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of sensory neuron cell bodies associated with the vagus nerve." ;
  rdfs:subClassOf obo:VT_0001081 .

obo:VT_0100019 a rdfs:Class ;
  rdfs:label "integumentary system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the system consisting of the skin and its derivatives." ;
  rdfs:subClassOf obo:VT_0015068 , obo:VT_1000775 .

obo:VT_0010375 a rdfs:Class ;
  rdfs:label "ovary diameter" ;
  rdfs:comment "The distance across the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0001127 .

obo:VT_0010562 a rdfs:Class ;
  rdfs:label "forelimb integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the anterior/superior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0000550 .

obo:VT_0000608 a rdfs:Class ;
  rdfs:label "hepatocyte organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the main structural component of the liver; these are specialized epithelial cells normally organized into interconnected plates called lobules." ;
  rdfs:subClassOf obo:VT_0000607 .

obo:VT_0006063 a rdfs:Class ;
  rdfs:label "inferior vena cava morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the principal vein draining blood from the lower portion of the body." ;
  rdfs:subClassOf obo:VT_0006062 .

obo:VT_0011320 a rdfs:Class ;
  rdfs:label "kidney outer medulla ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the region of the kidney that lies between the renal cortex and the renal inner medulla. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010793 , obo:VT_0011321 .

obo:VT_1000732 a rdfs:Class ;
  rdfs:label "chest depth" ;
  rdfs:comment "The dorsal-ventral dimension of the chest, measured directly behind the forelimbs." ;
  rdfs:subClassOf obo:VT_0004134 , obo:VT_0011362 .

obo:VT_0010738 a rdfs:Class ;
  rdfs:label "skin mineral amount" ;
  rdfs:comment "The proportion, quantity, or volume in the skin of any inorganic element or compound that has importance in body functions." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0010737 .

obo:VT_0001283 a rdfs:Class ;
  rdfs:label "obsolete vibrissa density" ;
  rdfs:comment "OBSOLETE. The amount of space between whiskers." .

obo:VT_0005495 a rdfs:Class ;
  rdfs:label "macrophage recruitment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the accumulation of macrophages in a specific location in response to a wide variety of substances released at the sites of inflammatory reactions." ;
  rdfs:subClassOf obo:VT_0002451 .

obo:VT_0003179 a rdfs:Class ;
  rdfs:label "platelet quantity" ;
  rdfs:comment "The proportion or number of the disc-like fragments of megakaryocytes that are found in the blood and function in clotting." ;
  rdfs:subClassOf obo:VT_0000237 , obo:VT_0010183 .

obo:VT_0010909 a rdfs:Class ;
  rdfs:label "blood ceruloplasmin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of ceruloplasmin, a metalloprotein that binds most of the copper in plasma and is involved in the peroxidation of Fe(II)transferrin to Fe(III) transferrin." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0000444 a rdfs:Class ;
  rdfs:label "snout shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the flesh covered anterior facial part that contains the nose, jaws, teeth and mouth that projects from the head." ;
  rdfs:subClassOf obo:VT_0000443 .

obo:VT_0003311 a rdfs:Class ;
  rdfs:label "urine amino acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the organic compounds, which, when polymerized, form proteins." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0004391 a rdfs:Class ;
  rdfs:label "respiratory conducting tube morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tubes of the respiratory system that allow passage of air from the trachea to the alveoli of the lungs." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0010030 a rdfs:Class ;
  rdfs:label "udder height" ;
  rdfs:comment "The vertical dimension of the organ in certain species containing two or more mammary glands, each with its own nipple." ;
  rdfs:subClassOf obo:VT_0100035 .

obo:VT_0010318 a rdfs:Class ;
  rdfs:label "milk fatty acid C18:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with an eighteen-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0005404 a rdfs:Class ;
  rdfs:label "axon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the single process of a nerve cell that normally conducts impulses away from the cell body." ;
  rdfs:subClassOf obo:VT_0015108 .

obo:VT_0001072 a rdfs:Class ;
  rdfs:label "vestibulocochlear nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the sensory nerve innervating the receptor cells of the membranous labyrinth." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0002703 a rdfs:Class ;
  rdfs:label "kidney tubule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the loops of Henle, proximal and distal convoluted tubules, and collecting ducts in the kidney." ;
  rdfs:subClassOf obo:VT_0003881 .

obo:VT_0010705 a rdfs:Class ;
  rdfs:label "blood VLDL particle size" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the very low density lipoprotein particles found in whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0010702 .

obo:VT_0008172 a rdfs:Class ;
  rdfs:label "follicular B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a resting mature B cell with distinct phenotypic characteristics (CD23-positive, CD21-positive) found typically in the B cell follicle region of the spleen and lymph nodes." ;
  rdfs:subClassOf obo:VT_0008171 .

obo:VT_0000872 a rdfs:Class ;
  rdfs:label "cerebellum external granule cell layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the transient layer of the cerebellar cortex which is composed of the dividing and migrating granule cells." ;
  rdfs:subClassOf obo:VT_0000854 .

obo:VT_0003585 a rdfs:Class ;
  rdfs:label "ureter size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the tube that conducts the urine from the renal pelvis to the bladder." ;
  rdfs:subClassOf obo:VT_0000534 .

obo:VT_0011059 a rdfs:Class ;
  rdfs:label "skeletal muscle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in any of the striated muscles connected at either or both extremities with the bony framework of the body. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010797 , obo:VT_0011239 .

obo:VT_0010364 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-11-C20:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with a twenty-carbon backbone and cis double bond at C-11." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0005274 a rdfs:Class ;
  rdfs:label "viscerocranium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the part of the skull that comprises the facial bones." ;
  rdfs:subClassOf obo:VT_0010612 .

obo:VT_0010619 a rdfs:Class ;
  rdfs:label "liver glutathione amount" ;
  rdfs:comment "The proportion, quantity, or volume in the liver of this tripeptide antioxidant." ;
  rdfs:subClassOf obo:VT_0010497 .

obo:VT_0010789 a rdfs:Class ;
  rdfs:label "adrenal gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the endocrine glands located above the kidney responsible for hormone and epinephrine secretion." ;
  rdfs:subClassOf obo:VT_0000639 .

obo:VT_0001905 a rdfs:Class ;
  rdfs:label "dopamine amount" ;
  rdfs:comment "The proportion, quantity, or volume of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0003632 , obo:VT_0010543 .

obo:VT_0003986 a rdfs:Class ;
  rdfs:label "cochlear ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cochlear ganglion or of the sensory neuron cell bodies that convey auditory sensation from the organ of Corti to the hindbrain and reside on the cochlear part of the vestibulocochlear nerve (eighth cranial nerve)." ;
  rdfs:subClassOf obo:VT_0002855 .

obo:VT_0002332 a rdfs:Class ;
  rdfs:label "exercise endurance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to perform during controlled physical activity." ;
  rdfs:subClassOf obo:VT_0002899 .

obo:VT_0005501 a rdfs:Class ;
  rdfs:label "skin physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0100019 .

obo:VT_0000348 a rdfs:Class ;
  rdfs:label "aerobic fitness trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the metabolic ability to do physical work." ;
  rdfs:subClassOf obo:VT_1000152 .

obo:VT_0000859 a rdfs:Class ;
  rdfs:label "somatosensory cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the parietal lobe that lies posterior to the central sulcus and is concerned with receiving and processing general sensations from the body surface." ;
  rdfs:subClassOf obo:VT_0000788 , obo:VT_0000794 .

obo:VT_0002368 a rdfs:Class ;
  rdfs:label "thymus capsule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the fibrous connective tissue surrounding the thymus." ;
  rdfs:subClassOf obo:VT_0000703 .

obo:VT_0005226 a rdfs:Class ;
  rdfs:label "vertebral arch development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the posterior projection from the body of a vertebra that encloses the vertebral foramen." ;
  rdfs:subClassOf obo:VT_0005225 .

obo:VT_0003733 a rdfs:Class ;
  rdfs:label "retinal inner nuclear layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the retinal layer which contains the cell bodies of bipolar, horizontal, and amacrine cells." ;
  rdfs:subClassOf obo:VT_0006069 .

obo:VT_0004431 a rdfs:Class ;
  rdfs:label "hair cell mechanoelectric transduction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the conversion of mechanical energy into electric(al) energy by sensory cells, such as auditory and vestibular hair cells, required for auditory sensation." ;
  rdfs:subClassOf obo:VT_0003879 .

obo:VT_0007003 a rdfs:Class ;
  rdfs:label "atrioventricular cushion thickness" ;
  rdfs:comment "The distance between the two surfaces of the mounds of embryonic connective tissue that bulge into the embryonic atrioventricular canal; these mounds fuse to form the valves between the right and left atrioventricular orifices." ;
  rdfs:subClassOf obo:VT_0007002 .

obo:VT_0002662 a rdfs:Class ;
  rdfs:label "cauda epididymis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tail of the epididymis." ;
  rdfs:subClassOf obo:VT_0002631 .

obo:VT_0002253 a rdfs:Class ;
  rdfs:label "pharyngeal muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the muscles of the pharynx, the inferior, middle, and superior constrictors, palatopharyngeus, salpingopharyngeus, and stylopharyngeus." ;
  rdfs:subClassOf obo:VT_0000759 , obo:VT_0002234 .

obo:VT_0010952 a rdfs:Class ;
  rdfs:label "adrenal gland renin amount" ;
  rdfs:comment "The proportion, quantity, or volume in the adrenal glands of this enzyme which cleaves a bond in angiotensinogen to generate angiotensin I." ;
  rdfs:subClassOf obo:VT_0010789 , obo:VT_0010889 .

obo:VT_0015029 a rdfs:Class ;
  rdfs:label "outer ear development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of any of the components of the auricles or external acoustic meatus during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003938 .

obo:VT_0000821 a rdfs:Class ;
  rdfs:label "choroid plexus cell quantity" ;
  rdfs:comment "The proportion or number of cells in the tela choroidea of the cerebral ventricles." ;
  rdfs:subClassOf obo:VT_0000820 .

obo:VT_0010991 a rdfs:Class ;
  rdfs:label "blood sarcosine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a N-alkylglycine that is the N-methyl derivative of glycine. It is an intermediate in the metabolic pathway of glycine." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0010889 a rdfs:Class ;
  rdfs:label "tissue enzyme amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue of any of the proteins that act as catalysts for biological reactions." ;
  rdfs:subClassOf obo:VT_0010888 .

obo:VT_0010460 a rdfs:Class ;
  rdfs:label "behavioral response to novel food trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its actions or reactions as a result of exposure to new food." ;
  rdfs:subClassOf obo:VT_0001431 , obo:VT_0003107 .

obo:VT_0003148 a rdfs:Class ;
  rdfs:label "cochlear coil quantity" ;
  rdfs:comment "The proportion or number of turns in the spiral-shaped bony canal in the inner ear containing the hair cells that transduce sound." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_1000421 a rdfs:Class ;
  rdfs:label "small intestine length" ;
  rdfs:comment "The distance from point to point along the longest axis of the upper portion of the digestive tract, between the stomach and the large intestine." ;
  rdfs:subClassOf obo:VT_0000496 , obo:VT_0010195 .

obo:VT_0004426 a rdfs:Class ;
  rdfs:label "cochlear labyrinth morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the portion of the membranous labyrinth concerned with the sense of hearing (vs. the vestibular labyrinth, which is concerned with the sense of equilibration) and innervated by the cochlear nerve; it is located within the cochlea of the bony labyrinth, and consists of the cochlear duct, which contains the spiral organ." ;
  rdfs:subClassOf obo:VT_0000035 .

obo:VT_0001240 a rdfs:Class ;
  rdfs:label "epidermis stratum corneum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outer layer of the epidermis, consisting of several layers of flat keratinized non-nucleated cells." ;
  rdfs:subClassOf obo:VT_0001216 .

obo:VT_0010259 a rdfs:Class ;
  rdfs:label "colostrum immunoglobulin G amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of the major antibody for antitoxins, viruses, and bacteria; also activates complement." ;
  rdfs:subClassOf obo:VT_0010257 .

obo:VT_0004236 a rdfs:Class ;
  rdfs:label "masseter muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the masticatory muscle of the posterior cheek with origin from the inferior border and medial surface of the zygomatic arch, with insertion into the lateral surface of the ramus of the mandible, with nerve supply from the masseteric nerve, and whose action closes the jaw during chewing." ;
  rdfs:subClassOf obo:VT_0004235 , obo:VT_0010113 .

obo:VT_0010420 a rdfs:Class ;
  rdfs:label "adrenal gland mass" ;
  rdfs:comment "The amount of matter in the endocrine gland(s) located above the kidney responsible for hormone and epinephrine secretion." ;
  rdfs:subClassOf obo:VT_0000639 .

obo:VT_0011216 a rdfs:Class ;
  rdfs:label "blood lysozyme amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a glycoside hydrolase that is present in saliva, tears, egg white, and many animal fluids and functions as an antibacterial agent." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0008589 a rdfs:Class ;
  rdfs:label "blood interleukin-1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a soluble factor produced by monocytes, macrophages and other cells, which activates T-lymphocytes and potentiates their response to mitogens or antigens." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0001560 a rdfs:Class ;
  rdfs:label "blood insulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this polypeptide hormone, secreted by beta cells of the pancreas, that promotes glucose utilization, protein synthesis, and the formation and storage of neutral lipids." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010104 a rdfs:Class ;
  rdfs:label "forelimb long bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the elongated bones of the anterior/superior extremities, consisting of a tubular shaft (diaphysis) and two extremities (epiphyses)." ;
  rdfs:subClassOf obo:VT_0000550 , obo:VT_0003723 .

obo:VT_0007091 a rdfs:Class ;
  rdfs:label "aorta root width" ;
  rdfs:comment "The distance from side to side of the portion of the aorta attached to the atrioventricular fibrous rings and myocardium." ;
  rdfs:subClassOf obo:VT_0007090 .

obo:VT_0000109 a rdfs:Class ;
  rdfs:label "parietal bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the curved bone forming part of the vault of the cranium." ;
  rdfs:subClassOf obo:VT_0000076 .

obo:VT_0007032 a rdfs:Class ;
  rdfs:label "heart right ventricle capacity" ;
  rdfs:comment "The volume of or amount contained in the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0002754 .

obo:VT_0001173 a rdfs:Class ;
  rdfs:label "bulbourethral gland ductal cell quantity" ;
  rdfs:comment "The proportion or number of cells found in the ducts through which the bulbourethral glands discharge mucus into the spongy part of the urethra." ;
  rdfs:subClassOf obo:VT_0001169 .

obo:VT_0003210 a rdfs:Class ;
  rdfs:label "heart elastic fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the slender connective tissue fiber in cardiac tissue characterized by great elasticity." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0008548 a rdfs:Class ;
  rdfs:label "blood interferon amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of proteins secreted by vertebrate cells in response to a wide variety of inducers; they confer resistance against many different viruses, inhibit proliferation of normal and malignant cells, impede multiplication of intracellular parasites, enhance macrophage and granulocyte phagocytosis, augment natural killer cell activity, and show several other immunomodulatory functions." ;
  rdfs:subClassOf obo:VT_0005416 , obo:VT_0008750 .

obo:VT_0000913 a rdfs:Class ;
  rdfs:label "brain development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the brain during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0002371 a rdfs:Class ;
  rdfs:label "thymus cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outer part of a thymus lobule that surrounds the medulla and is composed of closely packed lymphocytes." ;
  rdfs:subClassOf obo:VT_0002367 .

obo:VT_0003749 a rdfs:Class ;
  rdfs:label "mouth shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the oral cavity." ;
  rdfs:subClassOf obo:VT_0000452 .

obo:VT_0001444 a rdfs:Class ;
  rdfs:label "scala tympani size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the spiral canal of the cochlea lying on the basal side of the spiral lamina." ;
  rdfs:subClassOf obo:VT_0003167 .

obo:VT_0008604 a rdfs:Class ;
  rdfs:label "blood interleukin-7 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine produced by bone marrow stromal cells that promotes the growth of B-cell precursors and is co-mitogenic with interleukin-2 for mature T-cell activation." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0010268 a rdfs:Class ;
  rdfs:label "milk lactoferrin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of lactoferrin, a globular multifunctional protein with antimicrobial activity; part of innate defense." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0010549 a rdfs:Class ;
  rdfs:label "cerebrum integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the largest part of the brain, derived from the telencephalon, and is composed of a right and a left hemisphere each which contains an outer cerebral cortex and a subcortical basal ganglia; cerebral functions include sensorimotor, emotional, and intellectual activities." ;
  rdfs:subClassOf obo:VT_0015105 .

obo:VT_0005464 a rdfs:Class ;
  rdfs:label "platelet physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the disc-like fragments of megakaryocytes that are found in the blood and function in clotting." ;
  rdfs:subClassOf obo:VT_0010249 .

obo:VT_0010037 a rdfs:Class ;
  rdfs:label "serum amyloid protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of an acute-phase reaction protein that is a precursor to amyloid A protein; it is present in very high levels during acute inflammatory episodes, and is present in low concentrations in normal sera, but is found at higher concentrations in sera of older persons and in patients with amyloidosis." ;
  rdfs:subClassOf obo:VT_0010035 .

obo:VT_0000638 a rdfs:Class ;
  rdfs:label "cochlear hair cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the sensory epithelial cells of the cochlea during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003938 .

obo:VT_0000198 a rdfs:Class ;
  rdfs:label "vasoconstriction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of a blood vessel to reduce its diameter in response to a chemical or mechanical signal." ;
  rdfs:subClassOf obo:VT_0000195 .

obo:VT_0010352 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-8,cis-10-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a trans double bond at C-8, and a cis double bond at C-10." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0004358 a rdfs:Class ;
  rdfs:label "tibia curvature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree or shape of the bend in the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0000558 .

obo:VT_0001125 a rdfs:Class ;
  rdfs:label "oocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the female germ cell that has entered meiosis." ;
  rdfs:subClassOf obo:VT_0002208 .

obo:VT_0001570 a rdfs:Class ;
  rdfs:label "blood enzyme amount" ;
  rdfs:comment "The proportion or quantity in whole blood, serum, or plasma of any of the proteins that act as catalysts for biological reactions." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0009623 a rdfs:Class ;
  rdfs:label "inguinal lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lymph nodes located in the groin area." ;
  rdfs:subClassOf obo:VT_0000701 , obo:VT_0002353 .

obo:VT_0003209 a rdfs:Class ;
  rdfs:label "pulmonary elastic fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a slender connective tissue fiber in pulmonary tissue characterized by great elasticity." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0000761 a rdfs:Class ;
  rdfs:label "diaphragm thickness" ;
  rdfs:comment "The distance between the surfaces of the thin musculomebranous barrier that separates the abdominal and thoracic cavities." ;
  rdfs:subClassOf obo:VT_0010115 .

obo:VT_0010792 a rdfs:Class ;
  rdfs:label "heart ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010755 .

obo:VT_0000137 a rdfs:Class ;
  rdfs:label "vertebra morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony segments of the spinal column." ;
  rdfs:subClassOf obo:VT_0010086 .

obo:VT_0010880 a rdfs:Class ;
  rdfs:label "serum reactive oxygen metabolite amount" ;
  rdfs:comment "The proportion, quantity, or volume of hydroperoxides measured in serum as derivatives in a DROM spectrophotometric test." ;
  rdfs:subClassOf obo:VT_0010879 .

obo:VT_0002664 a rdfs:Class ;
  rdfs:label "blood adrenocorticotropin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the pituitary hormone that stimulates the secretion of adrenal cortical steroids and induces growth of the adrenal cortex." ;
  rdfs:subClassOf obo:VT_0005116 .

obo:VT_0010343 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-9,cis-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a cis double bond at C-12, and a trans double bond at C-9." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0011291 a rdfs:Class ;
  rdfs:label "biceps femoris ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in a muscle of the posterior thigh. It has two parts, one of which (the long head) forms part of the hamstrings muscle group. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011059 , obo:VT_0011292 .

obo:VT_0003755 a rdfs:Class ;
  rdfs:label "palate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the roof of the mouth in vertebrates formed anteriorly by a bony projection of the upper jaw (hard palate) and posteriorly by the fold of connective tissue (soft palate)." ;
  rdfs:subClassOf obo:VT_0000452 .

obo:VT_0005475 a rdfs:Class ;
  rdfs:label "blood thyroxine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the major hormone derived from the thyroid gland; it normally affects cellular metabolism." ;
  rdfs:subClassOf obo:VT_0003351 .

obo:VT_0010156 a rdfs:Class ;
  rdfs:label "obsolete cytokine physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of any of the non-antibody proteins made by inflammatory leukocytes and some non-leukocytic cells that affect the behavior of other cells." .

obo:VT_0003817 a rdfs:Class ;
  rdfs:label "Rathke's pouch morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the pouch of ectoderm that grows out from the upper surface of the embryonic stomodeum and gives rise to the anterior and intermediate lobes of the pituitary gland." ;
  rdfs:subClassOf obo:VT_0003816 .

obo:VT_0001884 a rdfs:Class ;
  rdfs:label "mammary alveoli morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sac-like structure of the mammary gland that synthesizes and secretes milk after pregnancy." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0005045 a rdfs:Class ;
  rdfs:label "thymus cortex area" ;
  rdfs:comment "The two-dimensional extent of the outer part of a thymus lobule that surrounds the medulla and is composed of closely packed lymphocytes." ;
  rdfs:subClassOf obo:VT_0002364 , obo:VT_0002371 .

obo:VT_0010662 a rdfs:Class ;
  rdfs:label "toll-like receptor 2 protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in serum of toll-like receptor 2, a membrane protein which is expressed on the surface of certain cells and plays a role in immune response." ;
  rdfs:subClassOf obo:VT_0010034 .

obo:VT_0000976 a rdfs:Class ;
  rdfs:label "obsolete hair guard cell innervation pattern trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to the hair guard cells." .

obo:VT_0002855 a rdfs:Class ;
  rdfs:label "cochlear ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of nerve cell bodies that conveys auditory sensation from the organ of Corti to the hindbrain and resides on the cochlear part of the vestibulocochlear nerve (eighth cranial nerve)." ;
  rdfs:subClassOf obo:VT_0000960 , obo:VT_0001081 .

obo:VT_0007081 a rdfs:Class ;
  rdfs:label "interatrial septum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the wall between the upper chambers of the heart." ;
  rdfs:subClassOf obo:VT_0003105 , obo:VT_0006113 .

obo:VT_0010904 a rdfs:Class ;
  rdfs:label "tissue oxygen amount" ;
  rdfs:comment "The proportion, quantity, or volume of oxygen in some tissue." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0010013 a rdfs:Class ;
  rdfs:label "humerus mass" ;
  rdfs:comment "The amount of matter in the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0100000 .

obo:VT_0005337 a rdfs:Class ;
  rdfs:label "retroperitoneal fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue found on the dorsal/posterior side of the serous membrane lining the abdominal cavity and covering most of the viscera." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_1000226 a rdfs:Class ;
  rdfs:label "gizzard mass" ;
  rdfs:comment "The amount of matter in the secondary, muscular stomach in some vertebrates used for grinding up food." ;
  rdfs:subClassOf obo:VT_1000667 .

obo:VT_0004147 a rdfs:Class ;
  rdfs:label "porphyrin amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of porphyrins or protoporphyrins." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0011319 a rdfs:Class ;
  rdfs:label "kidney cortex ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the outer area of the kidney, which conains the glomeruli and the capsules that enclose them, as well as the proximal and distal tubules. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010793 , obo:VT_0011318 .

obo:VT_0006108 a rdfs:Class ;
  rdfs:label "hindbrain development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the caudal region of the brain during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000913 .

obo:VT_0004344 a rdfs:Class ;
  rdfs:label "scapula bone cell quantity" ;
  rdfs:comment "The proportion or number of bone cells in either or both of the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0000149 .

obo:VT_0010182 a rdfs:Class ;
  rdfs:label "blood cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of any of the cells found in the blood during their formation or differentiation." ;
  rdfs:subClassOf obo:VT_0010255 .

obo:VT_0010363 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-8-C20:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with a twenty-carbon backbone and cis double bond at C-8." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010749 a rdfs:Class ;
  rdfs:label "heart blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood pressure in the heart." ;
  rdfs:subClassOf obo:VT_0000183 .

obo:VT_0008895 a rdfs:Class ;
  rdfs:label "intraepithelial T cell quantity" ;
  rdfs:comment "The proportion or number of T cells present in columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0006387 , obo:VT_0008894 .

obo:VT_0008178 a rdfs:Class ;
  rdfs:label "germinal center B cell quantity" ;
  rdfs:comment "The proportion or number of rapidly cycling mature B cells which have downregulated IgD expression and exhibit high levels of binding by peanut agglutinin (PNA), and are involved in T-dependent immune responses; germinal center B cells are found typically in the germinal centers of lymph nodes and spleen." ;
  rdfs:subClassOf obo:VT_0008176 , obo:VT_0008211 .

obo:VT_0010413 a rdfs:Class ;
  rdfs:label "luteinizing hormone secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a glycoprotein that, in females, stimulates the Graafian follicles of the ovary and assists in follicular maturation and the secretion of estradiol; in males, it stimulates the epithelium of the seminiferous tubules and is partly responsible for spermatogenesis." ;
  rdfs:subClassOf obo:VT_0001746 .

obo:VT_4000011 a rdfs:Class ;
  rdfs:label "endocrine pancreas morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the Islets of Langerhans of the pancreas which secrete insulin and glucagon into the bloodstream." ;
  rdfs:subClassOf obo:VT_0001944 .

obo:VT_0010886 a rdfs:Class ;
  rdfs:label "blood urotensin II amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of urotensin II." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0010379 a rdfs:Class ;
  rdfs:label "milk epithelial cell quantity" ;
  rdfs:comment "The proportion or number of cells originating from the mammary epithelium present in milk." ;
  rdfs:subClassOf obo:VT_1000072 .

obo:VT_0010763 a rdfs:Class ;
  rdfs:label "superoxide dismutase activity" ;
  rdfs:comment "The degree of function or response of this family of enzymes that convert naturally-occurring but harmful superoxide radicals to molecular oxygen and hydrogen peroxide." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0010178 a rdfs:Class ;
  rdfs:label "obsolete factor D physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, factor D." .

obo:VT_0002174 a rdfs:Class ;
  rdfs:label "gastrulation movement trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the migration of embryonic cells during the development and invagination of the primary germ layers." ;
  rdfs:subClassOf obo:VT_0001695 .

obo:VT_0000965 a rdfs:Class ;
  rdfs:label "sensory neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells that innervate an effector (muscle or glandular) tissue and are responsible for transmission of sensory impulses." ;
  rdfs:subClassOf obo:VT_0000959 , obo:VT_0002882 .

obo:VT_0006029 a rdfs:Class ;
  rdfs:label "sclerotome morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one or more of the masses of mesodermal tissue that is derived from the somites and is adjacent to the notochord that give rise to the ribs and vertebrae." ;
  rdfs:subClassOf obo:VT_0010005 .

obo:VT_0000729 a rdfs:Class ;
  rdfs:label "skeletal myogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to embryonic formation or differentiation of skeletal muscle cells or fibers." ;
  rdfs:subClassOf obo:VT_0000733 .

obo:VT_0001010 a rdfs:Class ;
  rdfs:label "prevertebral ganglion cell quantity" ;
  rdfs:comment "The proportion or number of cells in the group of neuronal cell bodies of the autonomic nervous system that are located on the superior part of the abdominal aorta." ;
  rdfs:subClassOf obo:VT_0015051 .

obo:VT_0001739 a rdfs:Class ;
  rdfs:label "secretion by adrenal gland trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances by the suprarenal gland." ;
  rdfs:subClassOf obo:VT_0002909 .

obo:VT_0010752 a rdfs:Class ;
  rdfs:label "blood angiotensin II amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this hormone, a vasoconstrictor formed by the action of angiotensin-converting enzyme on angiotensin I." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010840 a rdfs:Class ;
  rdfs:label "cervical spinal cord dihyroxyphenylacetic acid (DOPAC) amount" ;
  rdfs:comment "The proportion, quantity or volume in a spinal cord segment adjacent to a cervical region of the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010577 , obo:VT_0010834 .

obo:VT_0010871 a rdfs:Class ;
  rdfs:label "brain epinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the brain of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0010585 .

obo:VT_0010525 a rdfs:Class ;
  rdfs:label "blood vessel smooth muscle cell quantity" ;
  rdfs:comment "The proportion or number of cells in the nonstriated, involuntary muscle tissue of the structures that convey blood throughout the body." ;
  rdfs:subClassOf obo:VT_0005592 .

obo:VT_0006097 a rdfs:Class ;
  rdfs:label "cerebellum lobule development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the lobes of the cerebellum during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000854 .

obo:VT_0005207 a rdfs:Class ;
  rdfs:label "aqueous vein morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the vessel that receives aqueous humor from the sinus venosus sclerae (canal of Schlemm)." ;
  rdfs:subClassOf obo:VT_0004221 .

obo:VT_2000006 a rdfs:Class ;
  rdfs:label "renal blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood flow in the kidneys." ;
  rdfs:subClassOf obo:VT_0000255 .

obo:VT_0001398 a rdfs:Class ;
  rdfs:label "strial basal cell tight junction morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, or pattern of the tight junctions between basal cells of stria vascularis, resulting in the paracellular barrier between basal cells; closing the intrastrial space off from the perilymph and establishing its electrical isolation." ;
  rdfs:subClassOf obo:VT_0004365 .

obo:VT_0010836 a rdfs:Class ;
  rdfs:label "tissue 5-hydroxyindoleacetic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in a tissue of indole-3-acetic acid substituted by a hydroxy group at C-5." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0005326 a rdfs:Class ;
  rdfs:label "podocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial cells of the glomerulus, attached to the outer surface of the glomerular capillary basement membrane by cytoplasmic foot processes." ;
  rdfs:subClassOf obo:VT_0005325 .

obo:VT_0003856 a rdfs:Class ;
  rdfs:label "hindlimb stylopod morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the proximal element of the developing hindlimb that will give rise to the femur." ;
  rdfs:subClassOf obo:VT_0006279 .

obo:VT_0011182 a rdfs:Class ;
  rdfs:label "Circle of Willis molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the Circle of Willis, a network of arteries at the base of the brain that connects the two major arterial systems supplying blood to the brain." ;
  rdfs:subClassOf obo:VT_0015090 .

obo:VT_0010125 a rdfs:Class ;
  rdfs:label "celiac lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the visceral lymph nodes located along the celiac trunk, which drain lymph from the stomach, duodenum, pancreas, spleen, and biliary tract." ;
  rdfs:subClassOf obo:VT_0000701 , obo:VT_0009626 .

obo:VT_0015103 a rdfs:Class ;
  rdfs:label "sympathetic cholinergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that utilize acetylcholine as a neurotransmitter, innervate smooth muscle, cardiac muscle and glands and mediate the body's response to stressful situations." ;
  rdfs:subClassOf obo:VT_0001025 , obo:VT_0001038 .

obo:VT_0011067 a rdfs:Class ;
  rdfs:label "bone molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in bone, the osseous tissue forming a part of the skeleton; consists of a dense outer layer surrounded by the periosteum, and an inner spongy substance." ;
  rdfs:subClassOf obo:VT_0010003 , obo:VT_0011282 .

obo:VT_0005267 a rdfs:Class ;
  rdfs:label "olfactory cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the piriform cortex, part of the olfactory tract, which receives its major afferents from the olfactory bulb, and is primarily responsible for the identification of odors." ;
  rdfs:subClassOf obo:VT_0005235 .

obo:VT_0002566 a rdfs:Class ;
  rdfs:label "sexual interaction trait" ;
  rdfs:comment "Any measurable or observable behavioral characteristic related to activities used to persuade or induce an individual to mate and activities involved in the physical act of mating." ;
  rdfs:subClassOf obo:VT_0010445 .

obo:VT_0015065 a rdfs:Class ;
  rdfs:label "gustatory system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to receive a gustatory stimulus, convert it to a molecular signal, and recognize and characterize the signal, or the morphology of the structures involved in any of these events." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0002458 a rdfs:Class ;
  rdfs:label "B cell quantity" ;
  rdfs:comment "The proportion or number of lymphocytes of B lineage with the phenotype CD19-positive and capable of B cell-mediated immunity." ;
  rdfs:subClassOf obo:VT_0000717 , obo:VT_0004939 .

obo:VT_0011115 a rdfs:Class ;
  rdfs:label "inferior alveolar nerve molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the branch of the mandibular nerve responsible for sensory innervation to the gingivae on the lower jaw." ;
  rdfs:subClassOf obo:VT_0011114 .

obo:VT_0005019 a rdfs:Class ;
  rdfs:label "early pro-B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of cells in the B lymphocyte lineage that undergo D-J rearrangement of the immunoglobulin heavy chain." ;
  rdfs:subClassOf obo:VT_0005432 .

obo:VT_0008354 a rdfs:Class ;
  rdfs:label "mature gamma-delta T cell quantity" ;
  rdfs:comment "The proportion or number of mature T cells expressing a gamma-delta T cell receptor complex." ;
  rdfs:subClassOf obo:VT_0008344 , obo:VT_0008345 .

obo:VT_0010955 a rdfs:Class ;
  rdfs:label "pulmonary arteriole morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the pulmonary arterioles, the smallest vessels which connect the pulmonary arteries to the capillaries that surround the pulmonary alveoli." ;
  rdfs:subClassOf obo:VT_0004007 , obo:VT_0010929 .

obo:VT_0006083 a rdfs:Class ;
  rdfs:label "blood vessel elastic tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the tissue that is found in the tunica media of the vessels wall and allows vessels to stretch." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_1000686 a rdfs:Class ;
  rdfs:label "paw/hand/foot/hoof mass" ;
  rdfs:comment "The amount of matter in the pedal or prehensile extremity of vertebrates." ;
  rdfs:subClassOf obo:VT_0004271 .

obo:VT_0009333 a rdfs:Class ;
  rdfs:label "splenocyte physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in any of the cells of the spleen." ;
  rdfs:subClassOf obo:VT_0008737 .

obo:VT_0000122 a rdfs:Class ;
  rdfs:label "blood vessel development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the tubular channels through which the blood circulates." ;
  rdfs:subClassOf obo:VT_0000121 .

obo:VT_0010623 a rdfs:Class ;
  rdfs:label "blood acetaminophen amount" ;
  rdfs:comment "The proportion, quantity, or volume in the blood of this antipyretic and analgesic." ;
  rdfs:subClassOf obo:VT_0010622 .

obo:VT_0010514 a rdfs:Class ;
  rdfs:label "blood transferrin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this iron-binding glycoprotein." ;
  rdfs:subClassOf obo:VT_0011345 .

obo:VT_0011346 a rdfs:Class ;
  rdfs:label "blood gamma-globulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the serum proteins that migrate to the gamma region (most positively charged) upon electrophoresis." ;
  rdfs:subClassOf obo:VT_0010628 .

obo:VT_0010233 a rdfs:Class ;
  rdfs:label "cecum muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the muscle surrounding the large sac at the ileum and large intestine junction." ;
  rdfs:subClassOf obo:VT_0000494 .

obo:VT_0011134 a rdfs:Class ;
  rdfs:label "blood pancreatic polypeptide amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this polypeptide hormone, secreted by the endocrine pancreas, that regulates pancreatic secretion activities, liver glycogen storage, and gastrointestinal secretion." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0004081 a rdfs:Class ;
  rdfs:label "globus pallidus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one of the basal ganglia involved with control of voluntary movement in the brain; consists of an external and an internal segment." ;
  rdfs:subClassOf obo:VT_0000830 , obo:VT_0006007 .

obo:VT_0000151 a rdfs:Class ;
  rdfs:label "atrioventricular canal partitioning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the right and left sides of the heart become separated." ;
  rdfs:subClassOf obo:VT_0000267 .

obo:VT_0009926 a rdfs:Class ;
  rdfs:label "transitional stage T2 B cell quantity" ;
  rdfs:comment "The proportion or number of a type of transitional stage B cell that has the phenotype surface IgM-positive, surface IgD-positive, CD21-positive, CD23-positive, CD62L-negative, and is located in the splenic B follicles." ;
  rdfs:subClassOf obo:VT_0008190 , obo:VT_0009920 .

obo:VT_1000197 a rdfs:Class ;
  rdfs:label "stillborn offspring quantity" ;
  rdfs:comment "The proportion or number of offspring that have died before birth process is completed." ;
  rdfs:subClassOf obo:VT_1000189 .

obo:VT_0010114 a rdfs:Class ;
  rdfs:label "intercostal muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the respiratory muscles that arise from the lower border of one rib and insert into the upper border of the adjoining rib." ;
  rdfs:subClassOf obo:VT_0002280 , obo:VT_0003398 .

obo:VT_0011205 a rdfs:Class ;
  rdfs:label "muscle creatine amount" ;
  rdfs:comment "The proportion, quantity, or volume of a glycine derivative with methyl and amidino groups attached to the nitrogen detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0003492 a rdfs:Class ;
  rdfs:label "involuntary movement trait" ;
  rdfs:comment "Any measurable or observable characteristic related to movements that occur independent of planning (e.g. reflexive behavior)." ;
  rdfs:subClassOf obo:VT_0010444 .

obo:VT_0011078 a rdfs:Class ;
  rdfs:label "parahippocampal gyrus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the ridge in the cerebral cortex that contains the olfactory cortex and that plays a role in the formation of topographical memory." ;
  rdfs:subClassOf obo:VT_0004168 .

obo:VT_0000010 a rdfs:Class ;
  rdfs:label "abdominal fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue in the cavity bounded by the abdominal walls, the diaphragm, and the pelvis." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0008194 a rdfs:Class ;
  rdfs:label "memory B cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in a distinctly differentiated long-lived B cell that is readily activated upon re-encounter of its antigenic determinant; memory B cells differentiate from antigen-activated B cells which have been selected for expression of higher affinity immunoglobulin." ;
  rdfs:subClassOf obo:VT_0002459 .

obo:VT_0008769 a rdfs:Class ;
  rdfs:label "plasmacytoid dendritic cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the phagocytic dendritic cells that are morphologically similar to plasma cells, but do not express B lineage markers, and produce large amounts of alpha/beta interferons (IFN-/) in response to viral and bacterial stimuli; plasmacytoid dendritic cells are found in the thymic medulla and lymph node T cell areas and are responsible for immune tolerance." ;
  rdfs:subClassOf obo:VT_0002376 .

obo:VT_0005008 a rdfs:Class ;
  rdfs:label "osteoblast development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of this bone-forming cell, which normally forms an osseous matrix in which it becomes enclosed as an osteocyte." ;
  rdfs:subClassOf obo:VT_0010005 .

obo:VT_0003632 a rdfs:Class ;
  rdfs:label "nervous system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the components of the system responsible for receiving and processing information about an organism's environment and controlling behavior." ;
  rdfs:subClassOf obo:VT_1000781 .

obo:VT_0000736 a rdfs:Class ;
  rdfs:label "skeletal myogenesis initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of formation and/or differentiation of skeletal muscle." ;
  rdfs:subClassOf obo:VT_0000729 .

obo:VT_0011142 a rdfs:Class ;
  rdfs:label "right pulmonary vein ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the right pulmonary vein, the vein that drains the right lung and returns blood to the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011141 .

obo:VT_0010612 a rdfs:Class ;
  rdfs:label "cranium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upper portion of the skull that excludes the mandible." ;
  rdfs:subClassOf obo:VT_0000438 .

obo:VT_0000336 a rdfs:Class ;
  rdfs:label "mast cell quantity" ;
  rdfs:comment "The proportion or number of the cells that are found in almost all tissues, containing numerous basophilic granules and capable of releasing large amounts of histamine and heparin upon activation." ;
  rdfs:subClassOf obo:VT_0000217 , obo:VT_0000359 .

obo:VT_0011048 a rdfs:Class ;
  rdfs:label "hypothalamus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the ventral part of the diencephalon extending from the region of the optic chiasm to the caudal border of the mammillary bodies and forming the inferior and lateral walls of the third ventricle; this region regulates the autonomic nervous system via hormone production and release. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011047 , obo:VT_0011259 .

obo:VT_0008745 a rdfs:Class ;
  rdfs:label "central B cell anergy trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the processes of B cell anergy, a state of functional inactivation that occurs as part of tolerance induction, in B cells in the bone marrow." ;
  rdfs:subClassOf obo:VT_0008744 .

obo:VT_0006216 a rdfs:Class ;
  rdfs:label "optic disc size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the area in the retina where all of the axons of the ganglion cells exit the retina to form the optic nerve." ;
  rdfs:subClassOf obo:VT_0006215 .

obo:VT_0000366 a rdfs:Class ;
  rdfs:label "brainstem auditory evoked potential" ;
  rdfs:comment "The electrical activity generated in response to short tone bursts; may be used to evaluate sensorineural hearing function." ;
  rdfs:subClassOf obo:VT_0000365 .

obo:VT_0002401 a rdfs:Class ;
  rdfs:label "lymphopoiesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of lymphocytes and plasma cells from lymphoid stem cells which develop from the pluripotent hematopoietic stem cells in the bone marrow; lymphoid stem cells differentiate into T-lymphocytes; B-lymphocytes; plasma cells; or NK cells (natural killer cells), depending on the organ or tissues to which they migrate." ;
  rdfs:subClassOf obo:VT_0005460 .

obo:VT_0001798 a rdfs:Class ;
  rdfs:label "macrophage phagocytosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to he ability of macrophage phagocytic cells to internalize particulate matter." ;
  rdfs:subClassOf obo:VT_0002419 , obo:VT_0002451 , obo:VT_0010667 .

obo:VT_0005193 a rdfs:Class ;
  rdfs:label "anterior eye segment morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the parts of the eye that lie in front of, or ventral to, the lens (inclusive)." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0003383 a rdfs:Class ;
  rdfs:label "gluconeogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of glucose from non-carbohydrates, such as proteins or fat." ;
  rdfs:subClassOf obo:VT_0015088 .

obo:VT_0011180 a rdfs:Class ;
  rdfs:label "gastric mucosa molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the surface epithelium of the stomach, which is made up of several different cell types." ;
  rdfs:subClassOf obo:VT_0005209 .

obo:VT_0004239 a rdfs:Class ;
  rdfs:label "temporalis muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the superior-most masticatory muscle." ;
  rdfs:subClassOf obo:VT_0004234 .

obo:VT_0000627 a rdfs:Class ;
  rdfs:label "mammary gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0001119 , obo:VT_0002163 .

obo:VT_0010839 a rdfs:Class ;
  rdfs:label "tissue dopamine amount" ;
  rdfs:comment "The proportion, quantity, or volume in a tissue of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0001905 , obo:VT_0015077 .

obo:VT_0010262 a rdfs:Class ;
  rdfs:label "muscle nerve fiber quantity" ;
  rdfs:comment "The proportion or number of sensory or motor nerve fibers to targets in the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0002108 , obo:VT_0010143 .

obo:VT_0005113 a rdfs:Class ;
  rdfs:label "anterior horn cell quantity" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportion or number of cells in the ventral gray column of the spinal cord." ;
  rdfs:subClassOf obo:VT_0005112 .

obo:VT_0005300 a rdfs:Class ;
  rdfs:label "corneal stroma morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the lamellated connective tissue of the cornea." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0003841 a rdfs:Class ;
  rdfs:label "lambdoid suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the articulation between the parietal bones and the occipital bone." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_1000528 a rdfs:Class ;
  rdfs:label "adipose fatty acid C18:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C18H36O2) present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005286 .

obo:VT_0001332 a rdfs:Class ;
  rdfs:label "obsolete optic nerve innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers from the second cranial nerve which is responsible for conveying visual information from the retina to the brain.
consider: VT:0006221, VT:0010141""" .

obo:VT_0004954 a rdfs:Class ;
  rdfs:label "thymus mass" ;
  rdfs:comment "The amount of matter in the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0002364 .

obo:VT_0011364 a rdfs:Class ;
  rdfs:label "embryo quantity" ;
  rdfs:comment "The proportion or number of the anatomical entity that comprises the organism 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:VT_0000069 .

obo:VT_0004136 a rdfs:Class ;
  rdfs:label "tongue muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscular portion of the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor." ;
  rdfs:subClassOf obo:VT_0000759 .

obo:VT_0002722 a rdfs:Class ;
  rdfs:label "immune system organ morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organs associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0000685 .

obo:VT_0004210 a rdfs:Class ;
  rdfs:label "bitter taste sensitivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to perceive a particular flavor or suggestion of something bitter by the chemoreceptors of the gustatory system." ;
  rdfs:subClassOf obo:VT_0001986 .

obo:VT_0011164 a rdfs:Class ;
  rdfs:label "food intake trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process whereby food (i.e. material, usually of plant or animal origin, that contains essential nutrients such as carbohydrates, fats, proteins, vitamins, and/or minerals and that is ingested and assimilated by an organism to produce energy, stimulate growth, and maintain life) is taken in for utilization by the body." ;
  rdfs:subClassOf obo:VT_0001431 .

obo:VT_0002483 a rdfs:Class ;
  rdfs:label "obsolete acute phase protein physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the series of proteins found in the blood shortly after infection, which participate in the early phases of host defense against infection." .

obo:VT_0011212 a rdfs:Class ;
  rdfs:label "sperm plasma membrane integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the plasma membrane that is part of a sperm cell." ;
  rdfs:subClassOf obo:VT_0010042 .

obo:VT_0010368 a rdfs:Class ;
  rdfs:label "milk fatty acid C22:6(n-3) amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated, omega-3 fatty acid with a twenty-two-carbon backbone and six double bonds." ;
  rdfs:subClassOf obo:VT_0010322 , obo:VT_0010374 .

obo:VT_0001317 a rdfs:Class ;
  rdfs:label "pupil morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the central circular aperture of the iris through which light rays enter the eye." ;
  rdfs:subClassOf obo:VT_0001322 .

obo:VT_0011245 a rdfs:Class ;
  rdfs:label "proximal tubule ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in a nephron tubule that connects the glomerular capsule to the loop of Henle. It has a brush border epithelial morphology. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010793 .

obo:VT_0015107 a rdfs:Class ;
  rdfs:label "obsolete sympathetic neuron innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to sympathetic termini.
consider: VT:0010296, VT:0010297""" .

obo:VT_0010601 a rdfs:Class ;
  rdfs:label "brain ventricle integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the cavities of the brain filled with cerebrospinal fluid." ;
  rdfs:subClassOf obo:VT_0000822 , obo:VT_0010579 .

obo:VT_0000890 a rdfs:Class ;
  rdfs:label "cerebellar molecular layer thickness" ;
  rdfs:comment "The distance between the surfaces of the outer of the three cortical layers of the cerebellum." ;
  rdfs:subClassOf obo:VT_0000889 .

obo:VT_0003006 a rdfs:Class ;
  rdfs:label "hippocampus fornix morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the compact, white, heavily myelinated fiber bundle arising from the Ammon horn of the hippocampus in each cerebral hemisphere and projecting to the hypothalamus and the mammillary body." ;
  rdfs:subClassOf obo:VT_0000807 .

obo:VT_0005445 a rdfs:Class ;
  rdfs:label "neurotransmitter release trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the secretion of endogenous signaling molecules into a synaptic cleft; neurotransmitters are released from presynaptic neurons and travel across the synaptic cleft to either excite or inhibit the target cell." ;
  rdfs:subClassOf obo:VT_0003635 .

obo:VT_0001039 a rdfs:Class ;
  rdfs:label "obsolete cholinergic innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers that utilize acetylcholine as a neurotransmitter to a target tissue or cell.
consider: VT:0010041, VT:0010062""" .

obo:VT_0003830 a rdfs:Class ;
  rdfs:label "testis development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the male reproductive glands where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0003936 , obo:VT_0015037 .

obo:VT_0005102 a rdfs:Class ;
  rdfs:label "iris pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the adjustable membrane, composed of the stroma and pigmented epithelium, located just in front of the crystalline lens within the eye." ;
  rdfs:subClassOf obo:VT_0001322 , obo:VT_0001324 .

obo:VT_0005609 a rdfs:Class ;
  rdfs:label "blood antidiuretic hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume of this peptide hormone in whole blood, serum, or plasma; it is normally released by the neurohypophysis to control water metabolism and balance by regulating water loss; it also contracts smooth muscle." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0000489 a rdfs:Class ;
  rdfs:label "large intestine morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the distal portion of the digestive tube that extends from the ileocecal valve to the anus." ;
  rdfs:subClassOf obo:VT_0000477 .

obo:VT_0010785 a rdfs:Class ;
  rdfs:label "blood carbon dioxide amount" ;
  rdfs:comment "The proportion, quantity, or volume of carbon dioxide in whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0002329 .

obo:VT_0008752 a rdfs:Class ;
  rdfs:label "tumor necrosis factor amount" ;
  rdfs:comment "The proportion, quantity, or volume of a serum glycoprotein produced by activated macrophages and NK cells and involved in initiating local inflammatory responses, particularly by its action on the endothelium of local blood vessels; its actions result in increased vascular permeability and induction of expression of adhesion molecules on the endothelium." ;
  rdfs:subClassOf obo:VT_0008713 .

obo:VT_0008246 a rdfs:Class ;
  rdfs:label "leukocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of nucleated cells of the myeloid or lymphoid lineages, found in blood or other tissue." ;
  rdfs:subClassOf obo:VT_0000716 , obo:VT_0002429 .

obo:VT_0010521 a rdfs:Class ;
  rdfs:label "spleen B cell follicle cell quantity" ;
  rdfs:comment "The proportion or number of cells in the area of the white pulp where the affinity maturation of B cells and the generation of memory B cells and plasma cells occur." ;
  rdfs:subClassOf obo:VT_0008470 .

obo:VT_0002242 a rdfs:Class ;
  rdfs:label "olfactory mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the nasal mucosa that contains the olfactory sensory endings." ;
  rdfs:subClassOf obo:VT_0002238 .

obo:VT_0001178 a rdfs:Class ;
  rdfs:label "lung cell quantity" ;
  rdfs:comment "The proportion or number of cells in all or part of either or both of the spongy organs of respiration contained within the pleural cavity of the thorax." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0010644 a rdfs:Class ;
  rdfs:label "iliac artery integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of any of the arteries that arise from a bifurcation of the aorta supplying the pelvis or abdomen." ;
  rdfs:subClassOf obo:VT_0010639 , obo:VT_0010643 .

obo:VT_0000050 a rdfs:Class ;
  rdfs:label "pancreas/salivary gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the pancreas or salivary glands." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0008628 a rdfs:Class ;
  rdfs:label "blood interleukin-9 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a multifunctional cytokine secreted by primarily by activated TH2 cells that may play a role as a regulator of allergic inflammation, and has been shown to enhance the growth and differentiation of mast cells, and can act on a variety of other immune cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0011026 a rdfs:Class ;
  rdfs:label "prostate molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the gland surrounding the beginning of the urethra in males that secretes part of the seminal fluid." ;
  rdfs:subClassOf obo:VT_0001158 .

obo:VT_0008053 a rdfs:Class ;
  rdfs:label "natural killer cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the non-T, non-B lymphocytes, having a granular morphology and which are important in innate immunity to viruses and other intracellular pathogens; in addition, these cells can kill certain tumor cells." ;
  rdfs:subClassOf obo:VT_0002401 .

obo:VT_0010561 a rdfs:Class ;
  rdfs:label "heart left ventricle molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003921 , obo:VT_0010755 .

obo:VT_0010994 a rdfs:Class ;
  rdfs:label "blood L-ornithine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an optically active form of ornithine having L-configuration." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0002096 a rdfs:Class ;
  rdfs:label "skin morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0100020 .

obo:VT_0001107 a rdfs:Class ;
  rdfs:label "Schwann cell quantity" ;
  rdfs:comment "The proportion or number of the cells that form the insulating myelin sheaths of peripheral axons." ;
  rdfs:subClassOf obo:VT_0001106 .

obo:VT_0001721 a rdfs:Class ;
  rdfs:label "blood island morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the pools of blood in the yolk sac." ;
  rdfs:subClassOf obo:VT_0001718 .

obo:VT_0002909 a rdfs:Class ;
  rdfs:label "adrenal gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the endocrine glands positioned in relation to the superior end of each kidney." ;
  rdfs:subClassOf obo:VT_0002164 .

obo:VT_0003935 a rdfs:Class ;
  rdfs:label "craniofacial development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the region of the body that includes the front part of the head from the chin to the top of the forehead, where the mouth, eyes, nose, and other features are and the part of the skull enclosing the brain." ;
  rdfs:subClassOf obo:VT_0015047 .

obo:VT_0010367 a rdfs:Class ;
  rdfs:label "milk fatty acid C22:5(n-3) amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated, omega-3 fatty acid with a twenty-two-carbon backbone and five double bonds." ;
  rdfs:subClassOf obo:VT_0010322 , obo:VT_0010374 .

obo:VT_0007033 a rdfs:Class ;
  rdfs:label "heart right ventricle mass" ;
  rdfs:comment "The amount of matter in the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0002754 .

obo:VT_0003795 a rdfs:Class ;
  rdfs:label "obsolete bone structure trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the composite material or the layered arrangement of bony tissue, common to multiple bones of the skeleton.
consider: VT:0010003""" .

obo:VT_0011012 a rdfs:Class ;
  rdfs:label "muscle selenium amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this metallic element chemically similar to sulfur." ;
  rdfs:subClassOf obo:VT_0001775 , obo:VT_0010652 .

obo:VT_0002062 a rdfs:Class ;
  rdfs:label "obsolete conditioning behavior trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the ability to change the frequency or form of a behavior as a result of the influence of the environment." .

obo:VT_0001150 a rdfs:Class ;
  rdfs:label "scrotum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the external sac of skin that encloses the testes." ;
  rdfs:subClassOf obo:VT_0002669 .

obo:VT_0007090 a rdfs:Class ;
  rdfs:label "aorta size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0000272 .

obo:VT_0010332 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-6-8-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at either C-6 or C-8." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0011052 a rdfs:Class ;
  rdfs:label "knee joint ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the joint that joins the thigh with the leg and consists of two articulations: one between the femur and tibia, and one between the femur and patella. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011051 .

obo:VT_0002893 a rdfs:Class ;
  rdfs:label "urine keto acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of organic acids containing a ketone group and a carboxylic acid group." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0011175 a rdfs:Class ;
  rdfs:label "connective tissue integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the physical or functional supporting tissue of the body, a major constituent of which is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0010002 a rdfs:Class ;
  rdfs:label "mammary gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0010633 a rdfs:Class ;
  rdfs:label "lipid metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving molecules composed of carbon and hydrogen that are characteristically insoluble in water." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0010402 a rdfs:Class ;
  rdfs:label "corpus luteum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the yellow endocrine body formed in the ovary after follicle rupture." ;
  rdfs:subClassOf obo:VT_0002679 .

obo:VT_0005082 a rdfs:Class ;
  rdfs:label "epidermis stratum lucidum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the clear, translucent layer of the epidermis in the deepest level of the stratum corneum." ;
  rdfs:subClassOf obo:VT_0001240 .

obo:VT_3000001 a rdfs:Class ;
  rdfs:label "platelet activation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of stimulating platelets to release substances that promote platelet adhesion and blood clotting." ;
  rdfs:subClassOf obo:VT_0000260 .

obo:VT_0010709 a rdfs:Class ;
  rdfs:label "behavioral response to novel object trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its actions or reactions as a result of exposure to an unfamiliar object." ;
  rdfs:subClassOf obo:VT_0003107 .

obo:VT_0004169 a rdfs:Class ;
  rdfs:label "fornicate gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the horseshoe-shaped gyrus of the cerebral cortex that consists of the cingulate gyrus and the parahippocampal gyrus." ;
  rdfs:subClassOf obo:VT_0004166 .

obo:VT_0008758 a rdfs:Class ;
  rdfs:label "T cell receptor beta chain V(D)J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which V, D, and J segments of the T cell receptor beta chain are recombined." ;
  rdfs:subClassOf obo:VT_0008754 .

obo:VT_0010778 a rdfs:Class ;
  rdfs:label "plasma alpha-fetoprotein amount" ;
  rdfs:comment "The proportion, quantity, or volume in plasma of the highly abundant plasma protein produced by the yolk sac, liver and gastrointestinal tract during fetal life and by certain neoplasms in the adult." ;
  rdfs:subClassOf obo:VT_0010776 .

obo:VT_0005294 a rdfs:Class ;
  rdfs:label "heart ventricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the lower chamber(s) of the heart." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0011100 a rdfs:Class ;
  rdfs:label "tongue molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor." ;
  rdfs:subClassOf obo:VT_0000762 .

obo:VT_0002432 a rdfs:Class ;
  rdfs:label "CD4-positive T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the subset of T lymphocytes that carry the CD4 marker, recognize intravesicular peptides bound to MHC class-II molecules, and turn on antibody production." ;
  rdfs:subClassOf obo:VT_0002435 .

obo:VT_0010398 a rdfs:Class ;
  rdfs:label "milk plasmin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of a fibrinolytic enzyme derived from the precursor plasminogen." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0008686 a rdfs:Class ;
  rdfs:label "interleukin-2 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a soluble substance elaborated by antigen- or mitogen-stimulated T-cells which induces DNA synthesis in naive lymphocytes." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0001940 a rdfs:Class ;
  rdfs:label "testis cell quantity" ;
  rdfs:comment "The proportion or number of cells in the male reproductive glands where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0001146 .

obo:VT_1000606 a rdfs:Class ;
  rdfs:label "skeletal muscle myosin heavy chain type I amount" ;
  rdfs:comment "The proportion, quantity, or volume of the type I isoform, predominant in slow-twitch fibers, of the most abundant protein in skeletal muscle." ;
  rdfs:subClassOf obo:VT_1000746 .

obo:VT_0000831 a rdfs:Class ;
  rdfs:label "diencephalon cell quantity" ;
  rdfs:comment "The proportion or number of cells in the paired caudal parts of the prosencephalon from which the thalamus, hypothalamus, epithalamus and subthalamus are derived." ;
  rdfs:subClassOf obo:VT_0000830 .

obo:VT_0010454 a rdfs:Class ;
  rdfs:label "organism trait" ;
  rdfs:subClassOf obo:VT_0000001 .

obo:VT_0004290 a rdfs:Class ;
  rdfs:label "stapes footpiece morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the flat portion of the stapes that fits in the oval window." ;
  rdfs:subClassOf obo:VT_0005107 .

obo:VT_0000167 a rdfs:Class ;
  rdfs:label "chondrocyte quantity" ;
  rdfs:comment "The proportion or number of non-dividing cartilage cells." ;
  rdfs:subClassOf obo:VT_0000166 .

obo:VT_0001071 a rdfs:Class ;
  rdfs:label "facial nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the 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:VT_0001056 .

obo:VT_0011276 a rdfs:Class ;
  rdfs:label "time of hair development" ;
  rdfs:comment "The stage in development when the fine, keratinized filamentous growths comprising the coat/hair begin to emerge through the epidermis." ;
  rdfs:subClassOf obo:VT_0015038 .

obo:VT_0003366 a rdfs:Class ;
  rdfs:label "blood glucocorticoid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the corticosteroids regulating carbohydrate metabolism and exhibiting anti-inflammatory activity." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010494 a rdfs:Class ;
  rdfs:label "lumbar vertebra morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0000137 .

obo:VT_0000344 a rdfs:Class ;
  rdfs:label "Cajal-Retzius cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the distinct population of large, bipolar cells, distributed in a continuous band along the marginal zone of the cortex extending to the molecular layer of the dentate gyrus." ;
  rdfs:subClassOf obo:VT_0000792 , obo:VT_0002882 .

obo:VT_1000711 a rdfs:Class ;
  rdfs:label "abdominal fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue in the cavity bounded by the abdominal walls, the diaphragm, and the pelvis." ;
  rdfs:subClassOf obo:VT_0000010 .

obo:VT_0000064 a rdfs:Class ;
  rdfs:label "secondary bone resorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of osteoclasts to degrade the organic and inorganic phases of bone by absorption." ;
  rdfs:subClassOf obo:VT_0001541 .

obo:VT_0005629 a rdfs:Class ;
  rdfs:label "lung mass" ;
  rdfs:comment "The amount of matter in either or both of the spongy organs of respiration contained within the pleural cavity of the thorax." ;
  rdfs:subClassOf obo:VT_0003641 .

obo:VT_0005311 a rdfs:Class ;
  rdfs:label "blood amino acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the organic compounds, which, when polymerized, form proteins." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0003402 a rdfs:Class ;
  rdfs:label "liver mass" ;
  rdfs:comment "The amount of matter in the bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0000599 .

obo:VT_0010814 a rdfs:Class ;
  rdfs:label "heart left ventricle interstitial angiotensin II amount" ;
  rdfs:comment "The proportion, quantity, or volume of interstitial angiotensin II in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010561 .

obo:VT_0010186 a rdfs:Class ;
  rdfs:label "cochlear inner hair cell efferent nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers to the normally dense plexus of efferent terminals that contact radial fibers of the spiral ganglion below cochlear IHCs or of the sparser plexus of terminals positioned around IHC somata; normally, lateral olivocochlear neurons, which are found in and/or around the lateral superior olive, project mainly to the ipsilateral cochlea and terminate mostly on dendritic fibers below IHCs." ;
  rdfs:subClassOf obo:VT_0004393 .

obo:VT_0010171 a rdfs:Class ;
  rdfs:label "obsolete C4 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C4." .

obo:VT_0001422 a rdfs:Class ;
  rdfs:label "drinking behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the consumption of liquids." ;
  rdfs:subClassOf obo:VT_0002069 .

obo:VT_2000017 a rdfs:Class ;
  rdfs:label "heart electrical impulse conduction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the conduction of an electrical impulse through the heart." ;
  rdfs:subClassOf obo:VT_0000231 .

obo:VT_0006230 a rdfs:Class ;
  rdfs:label "iris stroma cell quantity" ;
  rdfs:comment "The proportion or number of cells in the lamellated connective tissue of the iris." ;
  rdfs:subClassOf obo:VT_0005208 .

obo:VT_0000183 a rdfs:Class ;
  rdfs:label "blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the hydrostatic force exerted by the blood perpendicular to the blood-tissue surface." ;
  rdfs:subClassOf obo:VT_0000175 .

obo:VT_0000991 a rdfs:Class ;
  rdfs:label "primary muscle spindle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory organ in muscle; involved in the stretch reflex and sensitive to stretch velocity." ;
  rdfs:subClassOf obo:VT_0004069 .

obo:VT_0005502 a rdfs:Class ;
  rdfs:label "urinary system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in any of the organs involved in the production or excretion of urine." ;
  rdfs:subClassOf obo:VT_1000777 .

obo:VT_0003057 a rdfs:Class ;
  rdfs:label "epicardium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the visceral layer of the pericardium that surrounds and attaches to all the surfaces of the heart." ;
  rdfs:subClassOf obo:VT_0000288 .

obo:VT_0001986 a rdfs:Class ;
  rdfs:label "taste sensitivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to perceive a particular flavor or suggestion of something imparting a flavor by the chemoreceptors of the gustatory system." ;
  rdfs:subClassOf obo:VT_0001985 .

obo:VT_1000783 a rdfs:Class ;
  rdfs:label "immune system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the organs or cells associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0001219 a rdfs:Class ;
  rdfs:label "epidermis thickness" ;
  rdfs:comment "The distance between the surfaces of the superficial epithelial portion of the skin." ;
  rdfs:subClassOf obo:VT_0001216 .

obo:VT_0010966 a rdfs:Class ;
  rdfs:label "blood L-serine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of serine, an alpha-amino acid that is alanine substituted at position 3 by a hydroxy group." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0000172 a rdfs:Class ;
  rdfs:label "bone marrow cell quantity" ;
  rdfs:comment "The proportion or number of cells that make up the core cavities of bones." ;
  rdfs:subClassOf obo:VT_0002398 .

obo:VT_0006055 a rdfs:Class ;
  rdfs:label "blood vessel endothelial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells that line the blood vessels." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_0005222 a rdfs:Class ;
  rdfs:label "somite size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the paired, metamerically arranged cell masses formed in the embryonic paraxial mesoderm." ;
  rdfs:subClassOf obo:VT_0010122 .

obo:VT_0006250 a rdfs:Class ;
  rdfs:label "line of Schwalbe morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thickened peripheral margin of the vitreous membrane of the cornea." ;
  rdfs:subClassOf obo:VT_0005203 .

obo:VT_0006005 a rdfs:Class ;
  rdfs:label "interneuron quantity" ;
  rdfs:comment "The proportion or number of neurons that interact only with other neurons." ;
  rdfs:subClassOf obo:VT_0006004 , obo:VT_0015026 .

obo:VT_0010307 a rdfs:Class ;
  rdfs:label "milk fatty acid C5:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a five-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0010847 a rdfs:Class ;
  rdfs:label "midbrain/pons homovanillic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of HVA, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010835 , obo:VT_0010873 .

obo:VT_0010100 a rdfs:Class ;
  rdfs:label "lacrimal gland cholinergic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers that utilize acetylcholine as a neurotransmitter and transmit impulses to the gland that secretes tears." ;
  rdfs:subClassOf obo:VT_0010041 .

obo:VT_0004371 a rdfs:Class ;
  rdfs:label "femur curvature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree or shape of the bend in the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_0000559 .

obo:VT_0005359 a rdfs:Class ;
  rdfs:label "incisor growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size of the first kind of tooth in heterodont mammals. They are located in the premaxilla above and mandible below." ;
  rdfs:subClassOf obo:VT_0000116 .

obo:VT_0000534 a rdfs:Class ;
  rdfs:label "ureter morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tube that conducts the urine from the renal pelvis to the bladder." ;
  rdfs:subClassOf obo:VT_0000516 .

obo:VT_0005229 a rdfs:Class ;
  rdfs:label "intervertebral disk development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cartilaginous and gelatinous structures found between the bodies of adjacent vertebrae." ;
  rdfs:subClassOf obo:VT_0000164 , obo:VT_0010102 .

obo:VT_0003135 a rdfs:Class ;
  rdfs:label "reticulocyte quantity" ;
  rdfs:comment "The proportion or number of the immature erythrocytes containing a basophilic cytoplasmic network." ;
  rdfs:subClassOf obo:VT_0000172 , obo:VT_0002424 .

obo:VT_0008466 a rdfs:Class ;
  rdfs:label "mesenteric lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lymph nodes located in the mesentary, of which there are 3 classes: ileocolic, juxtaintestinal mesenteric, and central superior group." ;
  rdfs:subClassOf obo:VT_0000701 , obo:VT_0005232 .

obo:VT_0010893 a rdfs:Class ;
  rdfs:label "ovary molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0001126 .

obo:VT_0005278 a rdfs:Class ;
  rdfs:label "cholesterol homeostasis trait" ;
  rdfs:comment "Any measurable characteristic related to the state of equilibrium in the body of these most abundant steroids in animal tissues, and precursors to steroid hormones and bile salts; also components of plasma membranes." ;
  rdfs:subClassOf obo:VT_0015079 .

obo:VT_0001909 a rdfs:Class ;
  rdfs:label "NMDA receptor mediated synaptic activity in barrel cortex" ;
  rdfs:comment "The degree of function or response of excitatory synaptic current in the barrel cortex." ;
  rdfs:subClassOf obo:VT_0002888 .

obo:VT_0005663 a rdfs:Class ;
  rdfs:label "blood norepinephrine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this catecholamine hormone secreted by the adrenal medulla which also acts as a neurotransmitter in the central and sympathetic nervous systems; precursor of epinephrine." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0000417 a rdfs:Class ;
  rdfs:label "hair length" ;
  rdfs:comment "The distance from point to point along the longest axis of the hair, wool, or fur of an organism, that is, of either a single cylindrical, keratinized, often pigmented filament characteristically growing from the epidermis of a mammal, or of the aggregate of all such filaments." ;
  rdfs:subClassOf obo:VT_0000367 .

obo:VT_0011280 a rdfs:Class ;
  rdfs:label "retroperitoneal fat pad ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the encapsulated adipose tissue found on the dorsal/posterior side of the serous membrane lining the abdominal cavity and covering most of the viscera. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011023 , obo:VT_0011281 .

obo:VT_0007007 a rdfs:Class ;
  rdfs:label "atrioventricular canal configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the common canal connecting the primordial atrium and ventricle." ;
  rdfs:subClassOf obo:VT_0006107 .

obo:VT_0010385 a rdfs:Class ;
  rdfs:label "milk diacylglycerol amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of glycerol with two esterified acyl moieties." ;
  rdfs:subClassOf obo:VT_0010261 .

obo:VT_1000703 a rdfs:Class ;
  rdfs:label "udder height, floor to tarsal joint" ;
  rdfs:comment "The vertical dimension between the udder floor and tarsal joint (point of the hock), viewed from the side." ;
  rdfs:subClassOf obo:VT_0100035 .

obo:VT_0004367 a rdfs:Class ;
  rdfs:label "strial intermediate cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, or pattern of the melanocytes known to migrate from the neural crest during ontogeny to become located between the epithelial marginal cell layer and the mesodermal basal cell layer within the intrastrial space; the predominant cellular component of the electrogenic machinery that generates an endocochlear potential (80-100 mV)." ;
  rdfs:subClassOf obo:VT_0000048 .

obo:VT_0006241 a rdfs:Class ;
  rdfs:label "pupil orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the pupil within the eye." ;
  rdfs:subClassOf obo:VT_0001317 .

obo:VT_0010330 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-4-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at C-4." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0002357 a rdfs:Class ;
  rdfs:label "spleen white pulp morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the parenchymatous tissue of the spleen that surrounds splenic blood vessels, consists of compact masses of lymphatic cells and is where foreign material removed from the blood is used to initiate an immune reaction that results in the production of antibodies." ;
  rdfs:subClassOf obo:VT_0000689 .

obo:VT_0002792 a rdfs:Class ;
  rdfs:label "retina blood vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the blood vessels supplying the retina." ;
  rdfs:subClassOf obo:VT_0001325 , obo:VT_0001614 .

obo:VT_0009631 a rdfs:Class ;
  rdfs:label "axillary lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lymph nodes located around the axillary vein that receive lymphatic drainage from the upper or forelimb, scapular region and pectoral region." ;
  rdfs:subClassOf obo:VT_0000701 , obo:VT_0002340 .

obo:VT_0011335 a rdfs:Class ;
  rdfs:label "blood anti-Mullerian hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the heterodimeric glycoprotein hormone that plays an essential role in sex determination in early embryonic development." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010660 a rdfs:Class ;
  rdfs:label "feather tract width" ;
  rdfs:comment "The distance from side to side of the area(s) of the skin of a bird in which feathers grow; they are well defined and separated by unfeathered areas called apteria." ;
  rdfs:subClassOf obo:VT_0010659 .

obo:VT_0002346 a rdfs:Class ;
  rdfs:label "lymph node secondary follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the immunologically active area of the lymph node cortex." ;
  rdfs:subClassOf obo:VT_0002344 .

obo:VT_0010651 a rdfs:Class ;
  rdfs:label "tyrosinase activity" ;
  rdfs:comment "The degree of function or response of tyrosinase, the enzyme that acts on tyrosine to produce melanin." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0000894 a rdfs:Class ;
  rdfs:label "cochlear hair cell stereocilia size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the nonmotile, actin-filled specialized microvilli (stereocilia) which are normally arrayed on cochlear inner and outer hair cells." ;
  rdfs:subClassOf obo:VT_0000816 .

obo:VT_0005110 a rdfs:Class ;
  rdfs:label "talus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the tarsal bone that articulates with the tibia and fibula." ;
  rdfs:subClassOf obo:VT_0005109 .

obo:VT_0008522 a rdfs:Class ;
  rdfs:label "lymph node germinal center morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the lymph node secondary follicle where B cells are stimulated by antigens and helper T cells are stimulated to generate memory cells." ;
  rdfs:subClassOf obo:VT_0002346 .

obo:VT_0002123 a rdfs:Class ;
  rdfs:label "hematopoiesis trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the development of blood cells; in the fetus, they develop in the aorta, genital ridge and mesonephros region and in adults, in the bone marrow and lymphatic tissues." ;
  rdfs:subClassOf obo:VT_0010182 .

obo:VT_0003528 a rdfs:Class ;
  rdfs:label "vulva size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the external genitalia of the female." ;
  rdfs:subClassOf obo:VT_0003126 .

obo:VT_0000556 a rdfs:Class ;
  rdfs:label "hindlimb morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the posterior/inferior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0002109 .

obo:VT_0010073 a rdfs:Class ;
  rdfs:label "esophagus length" ;
  rdfs:comment "The distance from point to point along the longest axis of the part of the digestive canal through which food passes from the pharynx to the stomach." ;
  rdfs:subClassOf obo:VT_0000006 .

obo:VT_0010145 a rdfs:Class ;
  rdfs:label "rectum mass" ;
  rdfs:comment "The amount of matter in the terminal portion of the intestinal tube adjacent to the anus." ;
  rdfs:subClassOf obo:VT_0000492 , obo:VT_0010220 .

obo:VT_0002718 a rdfs:Class ;
  rdfs:label "inner cell mass morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells of the blastocyst of placental mammals that develop into the body of the embryo and some extraembryonic tissues." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0010756 a rdfs:Class ;
  rdfs:label "heart lactate dehydrogenase activity" ;
  rdfs:comment "The degree of function or response in the heart of the enzyme that catalyzes the oxidation of lactate to pyruvate." ;
  rdfs:subClassOf obo:VT_0010681 , obo:VT_0010755 .

obo:VT_0008568 a rdfs:Class ;
  rdfs:label "interleukin secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of soluble factors which stimulate growth-related activities of leukocytes and other cell types, that can act to enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli." ;
  rdfs:subClassOf obo:VT_0003009 .

obo:VT_0006227 a rdfs:Class ;
  rdfs:label "iris development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the iris (the adjustable membrane, composed of the stroma and pigmented epithelium, located just in front of the crystalline lens within the eye) during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0010335 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-13-14-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at either C-13 or C-14." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0000454 a rdfs:Class ;
  rdfs:label "jaw morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bony framework of the mouth where the teeth are held." ;
  rdfs:subClassOf obo:VT_0000438 .

obo:VT_0002281 a rdfs:Class ;
  rdfs:label "respiratory mucosa goblet cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells of the respiratory epithelial lining that produce and secrete mucins." ;
  rdfs:subClassOf obo:VT_0002277 .

obo:VT_0008165 a rdfs:Class ;
  rdfs:label "B-1b B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the B-1 B cell subset not bearing the CD5 surface marker, but having other phenotypic attributes of a B-1 B cell." ;
  rdfs:subClassOf obo:VT_0004940 .

obo:VT_0003405 a rdfs:Class ;
  rdfs:label "platelet shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of disc-like fragments of megakaryocytes that are found in the blood and function in clotting." ;
  rdfs:subClassOf obo:VT_0010183 .

obo:VT_0001248 a rdfs:Class ;
  rdfs:label "connective tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the physical or functional supporting tissue of the body, a major constituent of which is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins." ;
  rdfs:subClassOf obo:VT_0100002 .

obo:VT_1000067 a rdfs:Class ;
  rdfs:label "udder morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ in certain species containing two or more mammary glands, each with its own nipple." ;
  rdfs:subClassOf obo:VT_0001119 .

obo:VT_0000933 a rdfs:Class ;
  rdfs:label "rhombomere morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the transverse segments in the hindbrain region of the developing neural tube." ;
  rdfs:subClassOf obo:VT_0003208 , obo:VT_0006108 .

obo:VT_0006192 a rdfs:Class ;
  rdfs:label "conjunctival blood vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the blood vessel network of the conjunctiva." ;
  rdfs:subClassOf obo:VT_0001310 , obo:VT_0001614 .

obo:VT_0000014 a rdfs:Class ;
  rdfs:label "tracheal-esophageal septation extent" ;
  rdfs:comment "The degree to which the separation of the trachea and esophagus during development has reached its end point." ;
  rdfs:subClassOf obo:VT_0003117 .

obo:VT_0000646 a rdfs:Class ;
  rdfs:label "adrenocortical cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells of the adrenal gland." ;
  rdfs:subClassOf obo:VT_0000639 .

obo:VT_0010432 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-14-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a cis double bond at C-14." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0000972 a rdfs:Class ;
  rdfs:label "mechanoreceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the receptors of the body, usually nerve termini, that respond to mechanical pressure or distortion." ;
  rdfs:subClassOf obo:VT_0000965 , obo:VT_0015099 .

obo:VT_0001237 a rdfs:Class ;
  rdfs:label "epidermis stratum spinosum cell size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cells of the layer between the stratum granulosum and stratum basale in the epidermis." ;
  rdfs:subClassOf obo:VT_0001236 .

obo:VT_0005020 a rdfs:Class ;
  rdfs:label "late pro-B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells in the B lymphocyte lineage that undergo V-DJ rearrangement of the immunoglobulin heavy chain." ;
  rdfs:subClassOf obo:VT_0005432 .

obo:VT_0000869 a rdfs:Class ;
  rdfs:label "cerebellum posterior vermis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the posterior portion of the narrow middle zone between the two hemispheres of the cerebellum." ;
  rdfs:subClassOf obo:VT_0000864 .

obo:VT_0001081 a rdfs:Class ;
  rdfs:label "cranial ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the groups of nerve cell bodies associated with the twelve cranial nerves." ;
  rdfs:subClassOf obo:VT_0002752 .

obo:VT_0010472 a rdfs:Class ;
  rdfs:label "compulsivity behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions in tests for compulsive behaviors." ;
  rdfs:subClassOf obo:VT_0002572 .

obo:VT_0010716 a rdfs:Class ;
  rdfs:label "anxiety-related behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions in tests for anxiety-related behaviors (emotional response related to anticipation of non-specific threat)." ;
  rdfs:subClassOf obo:VT_1000241 .

obo:VT_0008208 a rdfs:Class ;
  rdfs:label "pro-B cell quantity" ;
  rdfs:comment "The proportion or number of the progenitor cells of the B cell lineage, with some lineage specific activity such as early stages of recombination of B cell receptor genes, but are not yet fully committed to the B cell lineage until the expression of PAX5 occurs." ;
  rdfs:subClassOf obo:VT_0005432 .

obo:VT_0010121 a rdfs:Class ;
  rdfs:label "sublingual salivary gland cholinergic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers that utilitze acetylcholine as a neurotransmitter and transmit impulses to the exocrine gland on the floor of the mouth that secretes saliva." ;
  rdfs:subClassOf obo:VT_0010041 .

obo:VT_0003463 a rdfs:Class ;
  rdfs:label "single cell response trait" ;
  rdfs:comment "Any measurable characteristic related to the response from a specific stimulus obtained upon extra- or intracellular recordings from single cells." ;
  rdfs:subClassOf obo:VT_0002272 .

obo:VT_0010970 a rdfs:Class ;
  rdfs:label "blood L-asparagine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an optically active form of asparagine (an alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 2-amino-2-oxoethyl group) having L-configuration." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0010457 a rdfs:Class ;
  rdfs:label "platelet size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of disc-like fragments of megakaryocytes that are found in the blood and function in clotting." ;
  rdfs:subClassOf obo:VT_0010183 .

obo:VT_0010199 a rdfs:Class ;
  rdfs:label "stomach capacity" ;
  rdfs:comment "The volume of or amount contained in the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0003883 .

obo:VT_1000737 a rdfs:Class ;
  rdfs:label "hind leg set" ;
  rdfs:comment "The squareness of the hind legs in relation to the body; may be assessed from the side or from behind." ;
  rdfs:subClassOf obo:VT_0000556 .

obo:VT_1000479 a rdfs:Class ;
  rdfs:label "muscle lipid amount" ;
  rdfs:comment "The proportion, quantity, or volume of fat-soluble substances (molecules composed of carbon and hydrogen and are characteristically insoluble in water) in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0001547 , obo:VT_0010021 .

obo:VT_0008398 a rdfs:Class ;
  rdfs:label "CD8-positive, alpha-beta regulatory T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD8-positive, alpha-beta T cell which regulates overall immune responses as well as the responses of other T cell subsets through direct cell-cell contact and cytokine release." ;
  rdfs:subClassOf obo:VT_0004941 , obo:VT_0005010 .

obo:VT_0000319 a rdfs:Class ;
  rdfs:label "endolymph physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes involved in the production (volume) or ionic homeostasis of the fluid contained within the membranous labyrinth of the inner ear." ;
  rdfs:subClassOf obo:VT_0003878 .

obo:VT_0000155 a rdfs:Class ;
  rdfs:label "rib attachment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the attachment of ribs to the vertebral column or to the sternum." ;
  rdfs:subClassOf obo:VT_0000150 .

obo:VT_0011037 a rdfs:Class ;
  rdfs:label "dorsal root ganglion ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the group of nerve cell bodies of each segmental nerve projecting from the spinal cord. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011036 .

obo:VT_0000842 a rdfs:Class ;
  rdfs:label "superior olivary complex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nucleus of neurons on the dorsal part of the lateral surface of the pons; it normally receives projection fibers from the cochlear nuclei and is prominently involved in spatial localization of sound." ;
  rdfs:subClassOf obo:VT_0000848 .

obo:VT_0010443 a rdfs:Class ;
  rdfs:label "cerebrospinal fluid homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the internal equilibrium in the fluid largely secreted by the choroid plexuses of the ventricles of the brain, filling the ventricles and the subarachnoid cavities of the brain and spinal cord." ;
  rdfs:subClassOf obo:VT_0001764 .

obo:VT_0000787 a rdfs:Class ;
  rdfs:label "telencephalon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired anteriolateral division of the prosencephalon plus the lamina terminalis from which the olfactory lobes, cerebral cortex, and subcortical nuclei are derived." ;
  rdfs:subClassOf obo:VT_0000783 .

obo:VT_0008557 a rdfs:Class ;
  rdfs:label "interferon-alpha secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of one of the type I interferons produced by peripheral blood leukocytes or lymphoblastoid cells that has antiviral activity and activates natural killer cells and B cells." ;
  rdfs:subClassOf obo:VT_0008555 .

obo:VT_0005636 a rdfs:Class ;
  rdfs:label "mineral homeostasis trait" ;
  rdfs:comment "Any measurable characteristic related to the state of equilibrium in the body with respect to any of the inorganic elements or compounds that have importance in body functions." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0010626 a rdfs:Class ;
  rdfs:label "blood vitamin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any of the organic substances found in food that are necessary in trace amounts for normal metabolic function." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010767 a rdfs:Class ;
  rdfs:label "kidney glutathione peroxidase activity" ;
  rdfs:comment "The degree of function or response in the kidney of the enzyme that catalyzes the following reaction: 2 glutathione + hydrogen peroxide = oxidized glutathione + 2 H2O." ;
  rdfs:subClassOf obo:VT_0010558 , obo:VT_0010766 .

obo:VT_0000961 a rdfs:Class ;
  rdfs:label "dorsal root ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the group of nerve cell bodies of each segmental nerve projecting from the spinal cord." ;
  rdfs:subClassOf obo:VT_0000960 .

obo:VT_0003672 a rdfs:Class ;
  rdfs:label "ureter development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the tube that conducts the urine from the renal pelvis to the bladder." ;
  rdfs:subClassOf obo:VT_0003942 .

obo:VT_0010940 a rdfs:Class ;
  rdfs:label "erythrocyte sodium amount" ;
  rdfs:comment "The proportion, quantity, or volume in red blood cells of  the monovalent cation of this alkali metal element, the most plentiful extracellular ion in the body." ;
  rdfs:subClassOf obo:VT_0010535 .

obo:VT_0015059 a rdfs:Class ;
  rdfs:label "thorax trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the portion of the body between the head and the abdomen; in mammals this region is formed by the sternum, thoracic vertebrae and ribs and does not include the upper limbs." ;
  rdfs:subClassOf obo:VT_0011359 .

obo:VT_0002928 a rdfs:Class ;
  rdfs:label "bile duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the channels that secrete bile from the liver to the gall bladder and intestines." ;
  rdfs:subClassOf obo:VT_0005083 .

obo:VT_0011230 a rdfs:Class ;
  rdfs:label "substantia nigra ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the substantia nigra of the brain, the layer of grey substance that separates the posterior parts of the cerebral peduncles (tegmentum mesencephali) from the anterior parts; it normally includes a posterior compact part with many pigmented cells (pars compacta) and an anterior reticular part whose cells contain little pigment (pars reticularis). Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011229 , obo:VT_0011288 .

obo:VT_0003679 a rdfs:Class ;
  rdfs:label "ear lobe size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the soft tissue at the base of the outer ear; consists of fat and fibrous tissue not reinforced by the auricular cartilage." ;
  rdfs:subClassOf obo:VT_0003677 .

obo:VT_0011310 a rdfs:Class ;
  rdfs:label "kidney blood vessel molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the network of vessels that convey blood in the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0000530 , obo:VT_0010558 .

obo:VT_0010891 a rdfs:Class ;
  rdfs:label "blood sorbital dehydrogenase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of sorbital dehydrogenase, an enzyme that converts sorbitol, the sugar alcohol form of glucose, into fructose." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0015007 a rdfs:Class ;
  rdfs:label "uterine fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0011095 a rdfs:Class ;
  rdfs:label "esophagus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the part of the digestive canal through which food passes from the pharynx to the stomach. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011094 .

obo:VT_0003271 a rdfs:Class ;
  rdfs:label "duodenum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the first division of the small intestine that extends from the pyloris to the junction with the jejunum." ;
  rdfs:subClassOf obo:VT_0000496 .

obo:VT_0011189 a rdfs:Class ;
  rdfs:label "CA1 stratum oriens ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the CA1 stratum oriens, the part of the hippocampus stratum oriens lying in area CA1, superficial to the alveus of CA1 and deep to the pyramidal cell layer of CA1. It is continuous with the stratum oriens of CA2 and bounded by the subiculum. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011300 .

obo:VT_0010119 a rdfs:Class ;
  rdfs:label "skeletal muscle cellular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of cells in any of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0000759 , obo:VT_0010118 .

obo:VT_0010573 a rdfs:Class ;
  rdfs:label "vertebra strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the bony segments of the spinal column to withstand the application of force without yielding or breaking." ;
  rdfs:subClassOf obo:VT_0001542 .

obo:VT_0002707 a rdfs:Class ;
  rdfs:label "kidney mass" ;
  rdfs:comment "The amount of matter in one or both of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0002706 .

obo:VT_0010988 a rdfs:Class ;
  rdfs:label "blood anserine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a dipeptide comprising of beta-alanine and 3-methyl-L-histidine units." ;
  rdfs:subClassOf obo:VT_0010987 .

obo:VT_0003419 a rdfs:Class ;
  rdfs:label "endochondral ossification initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of bone formation in bones that form from cartilage." ;
  rdfs:subClassOf obo:VT_0000060 .

obo:VT_0010483 a rdfs:Class ;
  rdfs:label "body lean mass" ;
  rdfs:comment "The amount of matter in the body of an organism that is not fat." ;
  rdfs:subClassOf obo:VT_0001259 .

obo:VT_0011357 a rdfs:Class ;
  rdfs:label "feather distribution trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the placement of the surface covering of birds, made of keratin, on the body." ;
  rdfs:subClassOf obo:VT_1000664 .

obo:VT_0005298 a rdfs:Class ;
  rdfs:label "clavicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one or both of the doubly curved long bones that form part of the shoulder girdle and articulate with the sternum and the scapula." ;
  rdfs:subClassOf obo:VT_0010089 .

obo:VT_0003553 a rdfs:Class ;
  rdfs:label "foreskin morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the loose fold of skin that covers the penis." ;
  rdfs:subClassOf obo:VT_0005187 .

obo:VT_0001459 a rdfs:Class ;
  rdfs:label "vestibule size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cavity between the semicircular canals and the cochlea of the inner ear." ;
  rdfs:subClassOf obo:VT_0000034 .

obo:VT_0001819 a rdfs:Class ;
  rdfs:label "immune system cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cells associated with associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0001790 .

obo:VT_0003620 a rdfs:Class ;
  rdfs:label "urine output" ;
  rdfs:comment "The amount of urine excreted." ;
  rdfs:subClassOf obo:VT_0000056 , obo:VT_0001756 , obo:VT_0001784 .

obo:VT_0010869 a rdfs:Class ;
  rdfs:label "forebrain dopamine amount" ;
  rdfs:comment "The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0010877 .

obo:VT_0011254 a rdfs:Class ;
  rdfs:label "cerebral cortex molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the surface of the cerebral hemisphere that develops from the telencephalon and folds into gyri; it is responsible for intellectual faculties and higher mental functions." ;
  rdfs:subClassOf obo:VT_0000788 , obo:VT_0011249 .

obo:VT_0008640 a rdfs:Class ;
  rdfs:label "blood interleukin-1 beta amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an interleukin-1 subtype that is synthesized as an inactive membrane-bound pro-protein on monocytes, macrophages and other cells; proteolytic processing of the precursor form by caspase 1 results in release of the active form of interleukin-1beta from the membrane." ;
  rdfs:subClassOf obo:VT_0008589 .

obo:VT_0010244 a rdfs:Class ;
  rdfs:label "rumen papillae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small, finger-like projections of the surface epithelial layer in the rumen." ;
  rdfs:subClassOf obo:VT_0010240 .

obo:VT_0005031 a rdfs:Class ;
  rdfs:label "trophoblast layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mesectodermal cell layer arising from the trophectoderm that erodes the uterine mucosa and contributes to the formation of the placenta." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_0011294 a rdfs:Class ;
  rdfs:label "dorsal striatum molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain; this region controls sensory and motor functions, including eye movement and coordination of auditory and visual reflexes." ;
  rdfs:subClassOf obo:VT_0004102 .

obo:VT_0003232 a rdfs:Class ;
  rdfs:label "forebrain development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the anterior primitive cerebral vesicle; this is the most rostral of three primary vesicles of the embryonic neural tube." ;
  rdfs:subClassOf obo:VT_0000913 .

obo:VT_0001431 a rdfs:Class ;
  rdfs:label "eating behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the consumption of solids." ;
  rdfs:subClassOf obo:VT_0002069 .

obo:VT_0000995 a rdfs:Class ;
  rdfs:label "secondary muscle spindle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the sensory organ in muscle; involved in the stretch reflex and is not sensitive to stretch velocity." ;
  rdfs:subClassOf obo:VT_0000994 .

obo:VT_0002249 a rdfs:Class ;
  rdfs:label "larynx morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the most superior portion of the respiratory tract, between the pharynx and the trachea." ;
  rdfs:subClassOf obo:VT_0002132 .

obo:VT_0004356 a rdfs:Class ;
  rdfs:label "radius cell quantity" ;
  rdfs:comment "The proportion or number of cells in the bone situated on the lateral side of the ulna in the forelimb." ;
  rdfs:subClassOf obo:VT_0000552 .

obo:VT_0010148 a rdfs:Class ;
  rdfs:label "Merkel's receptor nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers to the modified epidermal cells located in the stratum basale and found mostly in areas where sensory perception is acute." ;
  rdfs:subClassOf obo:VT_0000985 , obo:VT_0010142 .

obo:VT_0010069 a rdfs:Class ;
  rdfs:label "proximal convoluted tubule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the renal tubule that extends from the glomerular capsule to the descending limb of Henle's loop." ;
  rdfs:subClassOf obo:VT_0010067 .

obo:VT_0008496 a rdfs:Class ;
  rdfs:label "blood immunoglobulin G2a amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin class G2a." ;
  rdfs:subClassOf obo:VT_0011218 .

obo:VT_0010251 a rdfs:Class ;
  rdfs:label "hemolymphoid system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the blood forming organs and tissues and the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood." ;
  rdfs:subClassOf obo:VT_0010248 .

obo:VT_0002114 a rdfs:Class ;
  rdfs:label "axial skeleton morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the craniofacial, vertebral, rib, or sternal bones." ;
  rdfs:subClassOf obo:VT_0010003 .

obo:VT_0005211 a rdfs:Class ;
  rdfs:label "gastric mucosa thickness" ;
  rdfs:comment "The distance between the surfaces of the epithelial layer of the stomach." ;
  rdfs:subClassOf obo:VT_0005209 .

obo:VT_0003243 a rdfs:Class ;
  rdfs:label "dopaminergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that utilize dopamine as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0002073 a rdfs:Class ;
  rdfs:label "obsolete hair physiology trait" ;
  rdfs:comment """OBSOLETE. The function of or processes involved in the amount, growth or development of the filamentous appendages growing out of the skin, consisting primarily of keratin, and comprising a cylindrical shaft and a root which is contained in a follicle.
consider: VT:4000007""" .

obo:VT_0002945 a rdfs:Class ;
  rdfs:label "inhibitory postsynaptic current" ;
  rdfs:comment "The size or duration of currents detected in postsynaptic cells when an inhibitory impulse arrives at the synapse causing hyperpolarization." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0010882 a rdfs:Class ;
  rdfs:label "serum oxidized LDL amount" ;
  rdfs:comment "The proportion, quantity, or volume of oxidized LDL in serum." ;
  rdfs:subClassOf obo:VT_0010881 .

obo:VT_0001885 a rdfs:Class ;
  rdfs:label "mammary duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tubular structure running from the nipple to the alveoli clusters in the mammary gland." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0002809 a rdfs:Class ;
  rdfs:label "spinal cord size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cylindrical tissue of the vertebral canal that extends from the medulla oblongata to the conus medullaris." ;
  rdfs:subClassOf obo:VT_0000955 .

obo:VT_0001706 a rdfs:Class ;
  rdfs:label "left-right axis patterning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the establishment, maintenance, and elaboration of a pattern in relation to the left and right sides of the body." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0010933 a rdfs:Class ;
  rdfs:label "nipple size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the erectile protuberance at the tip of the mammary gland in which the mammary ducts terminate and from which milk can be secreted." ;
  rdfs:subClassOf obo:VT_0006078 .

obo:VT_0005674 a rdfs:Class ;
  rdfs:label "arterial trunk division extent" ;
  rdfs:comment "The degree to which the septation of the path through which blood exits the heart has reached its end point." ;
  rdfs:subClassOf obo:VT_0000135 .

obo:VT_0002237 a rdfs:Class ;
  rdfs:label "nasal cavity morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the respiratory tract that extends from the nares to the pharynx; the nasal cavity is lined with ciliated mucosa." ;
  rdfs:subClassOf obo:VT_0002233 .

obo:VT_0000029 a rdfs:Class ;
  rdfs:label "malleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the largest of the three auditory ossicles, which resembles a club." ;
  rdfs:subClassOf obo:VT_0005105 .

obo:VT_0004796 a rdfs:Class ;
  rdfs:label "blood anti-histone antibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies to histones." ;
  rdfs:subClassOf obo:VT_0004794 .

obo:VT_0000102 a rdfs:Class ;
  rdfs:label "nasal bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of either of two rectangular bone plates forming the bridge of the nose." ;
  rdfs:subClassOf obo:VT_0005274 .

obo:VT_0011257 a rdfs:Class ;
  rdfs:label "telencephalon ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the paired anteriolateral division of the prosencephalon plus the lamina terminalis from which the olfactory lobes, cerebral cortex, and subcortical nuclei are derived. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010791 , obo:VT_0011256 , obo:VT_0011259 .

obo:VT_0008198 a rdfs:Class ;
  rdfs:label "follicular dendritic cell antigen presentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of follicular dendritic cells to process and present antigen to B lymphocytes." ;
  rdfs:subClassOf obo:VT_0001835 , obo:VT_0008197 .

obo:VT_1000432 a rdfs:Class ;
  rdfs:label "muscle water amount" ;
  rdfs:comment "The proportion, quantity, or volume of this clear, odorless, tasteless liquid in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0005218 a rdfs:Class ;
  rdfs:label "pancreatic delta cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells found in the pancreas and gastrointestinal tract that secrete somatostatin." ;
  rdfs:subClassOf obo:VT_0005215 .

obo:VT_0010500 a rdfs:Class ;
  rdfs:label "platelet calcium amount" ;
  rdfs:comment "The proportion, quantity or volume of this metallic bivalent element in the disc-like fragments of megakaryocytes that are found in the blood and function in clotting." ;
  rdfs:subClassOf obo:VT_0001562 , obo:VT_0010183 .

obo:VT_0003564 a rdfs:Class ;
  rdfs:label "insulin secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of this hormone secreted by beta cells of the pancreas, which promotes glucose utilization, protein synthesis, and the formation and storage of neutral lipids." ;
  rdfs:subClassOf obo:VT_0002694 , obo:VT_0003562 .

obo:VT_0010666 a rdfs:Class ;
  rdfs:label "milk alpha-casein amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the alpha fraction of the casein phosphoprotein." ;
  rdfs:subClassOf obo:VT_0010280 .

obo:VT_0005240 a rdfs:Class ;
  rdfs:label "amacrine cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of one of the three types of interneurons found in the inner nuclear layer of the mature 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." ;
  rdfs:subClassOf obo:VT_0000965 , obo:VT_0001325 , obo:VT_0006004 .

obo:VT_0003517 a rdfs:Class ;
  rdfs:label "labia majora size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the folds of skin which form the outer lips (labia majora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003512 , obo:VT_0003515 .

obo:VT_0010691 a rdfs:Class ;
  rdfs:label "subscapular fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the encapsulated adipose tissue located beneath the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0010558 a rdfs:Class ;
  rdfs:label "kidney molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0010017 a rdfs:Class ;
  rdfs:label "white adipose mass" ;
  rdfs:comment "The amount of matter in the connective tissue consisting of fat-storing cells and arranged in lobular groups or along minor blood vessels." ;
  rdfs:subClassOf obo:VT_0001781 .

obo:VT_0011329 a rdfs:Class ;
  rdfs:label "semen color" ;
  rdfs:comment "The visually perceived hue of the substance that is composed of sperm cells suspended in seminal fluid." ;
  rdfs:subClassOf obo:VT_0011327 .

obo:VT_0005490 a rdfs:Class ;
  rdfs:label "club cell quantity" ;
  rdfs:comment "The proportion or number of the rounded, club-shaped, nonciliated cells found between ciliated cells in bronchiolar epithelium." ;
  rdfs:subClassOf obo:VT_0002264 .

obo:VT_0005078 a rdfs:Class ;
  rdfs:label "cytotoxic T cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the subset of CD8-positive T lymphocytes capable of directly killing appropriately targeted cells." ;
  rdfs:subClassOf obo:VT_0004392 .

obo:VT_0001077 a rdfs:Class ;
  rdfs:label "spinal nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the paired peripheral nerves formed by the union of the dorsal and ventral spinal roots from each spinal cord segment." ;
  rdfs:subClassOf obo:VT_0002752 .

obo:VT_0010302 a rdfs:Class ;
  rdfs:label "blood uric acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a crystalline acid occurring as an end product of purine metabolism." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010803 a rdfs:Class ;
  rdfs:label "thymus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the thymus. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010802 .

obo:VT_1000667 a rdfs:Class ;
  rdfs:label "gizzard morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the secondary, muscular stomach in some vertebrates used for grinding up food." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0010310 a rdfs:Class ;
  rdfs:label "milk fatty acid C8:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with an eight-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0005106 a rdfs:Class ;
  rdfs:label "incus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the middle of the three auditory ossicles." ;
  rdfs:subClassOf obo:VT_0005105 .

obo:VT_0011153 a rdfs:Class ;
  rdfs:label "laryngeal muscle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the muscles associated with the larynx. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011152 .

obo:VT_0006212 a rdfs:Class ;
  rdfs:label "orbit width" ;
  rdfs:comment "The distance from side to side of the bony cavity that contains the eyeball." ;
  rdfs:subClassOf obo:VT_0006210 .

obo:VT_0004095 a rdfs:Class ;
  rdfs:label "eyelash morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the short hairs fringing the edge of the eyelid." ;
  rdfs:subClassOf obo:VT_0001340 .

obo:VT_0011074 a rdfs:Class ;
  rdfs:label "vagina molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the female reproductive canal located between the uterus and the vulva." ;
  rdfs:subClassOf obo:VT_0001139 .

obo:VT_0011360 a rdfs:Class ;
  rdfs:label "trunk morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organism subdivision which is the part of the body posterior to the cervical region (or head, when cervical region not present) and anterior to the caudal region. Includes the sacrum when present." ;
  rdfs:subClassOf obo:VT_0011359 .

obo:VT_1000472 a rdfs:Class ;
  rdfs:label "subcutaneous adipose mass" ;
  rdfs:comment "The amount of matter in the fat-storing layer directly beneath the skin." ;
  rdfs:subClassOf obo:VT_0010017 , obo:VT_0010045 .

obo:VT_0011034 a rdfs:Class ;
  rdfs:label "pituitary gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the compound gland suspended from the base of the hypothalamus, which secretes somatotropins, prolactin, TSH (thyroid-stimulating hormone), gonadotropins, adrenal corticotropin, and other related peptides." ;
  rdfs:subClassOf obo:VT_0000633 , obo:VT_0011258 .

obo:VT_0006199 a rdfs:Class ;
  rdfs:label "obsolete vertical eye alignment trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the vertical alignment between the eyes.
consider: VT:0001299""" .

obo:VT_0000478 a rdfs:Class ;
  rdfs:label "intestine development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0003119 .

obo:VT_0003377 a rdfs:Class ;
  rdfs:label "menarche initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of menstrual cycles." ;
  rdfs:subClassOf obo:VT_0001938 .

obo:VT_0011009 a rdfs:Class ;
  rdfs:label "muscle manganese amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this metallic element that resembles iron." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0005236 a rdfs:Class ;
  rdfs:label "olfactory nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the first cranial nerve, which conveys the sense of smell." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0011193 a rdfs:Class ;
  rdfs:label "milk immunoglobulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of members of a diverse group of plasma proteins, made up of polypeptide chains, that function as a primary mechanism for protection against disease." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0004035 a rdfs:Class ;
  rdfs:label "sublingual gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small mucin-producing salivary glands in the floor of the mouth beneath the tongue, anterior to the submandibular gland." ;
  rdfs:subClassOf obo:VT_0003792 .

obo:VT_0005423 a rdfs:Class ;
  rdfs:label "somatic nervous system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the part of the peripheral nervous system that is responsible for conveying voluntary motor and external sensory information, including all nerves controlling the skeletal muscular system and external sensory receptors." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0003885 a rdfs:Class ;
  rdfs:label "rostral-caudal body axis extension trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the elongation of the long (rostral-caudal) axis of the body once patterning has been established." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0003588 a rdfs:Class ;
  rdfs:label "ureter width" ;
  rdfs:comment "The distance from side to side of the tube that conducts the urine from the renal pelvis to the bladder." ;
  rdfs:subClassOf obo:VT_0003585 .

obo:VT_0002108 a rdfs:Class ;
  rdfs:label "muscular system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0005369 .

obo:VT_0008720 a rdfs:Class ;
  rdfs:label "neutrophil migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement of neutrophils (granular leukocytes that have a three- to five-lobed nucleus and cytoplasm that contains inconspicuous granules stainable by neutral dyes) from point to point." ;
  rdfs:subClassOf obo:VT_0002463 , obo:VT_0005073 .

obo:VT_1000775 a rdfs:Class ;
  rdfs:label "integumentary system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the system consisting of the skin and its derivatives." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0000140 a rdfs:Class ;
  rdfs:label "pedicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of part of the posteriorlateral vertebral arch of a thoracic vertebra." ;
  rdfs:subClassOf obo:VT_0003047 .

obo:VT_0003145 a rdfs:Class ;
  rdfs:label "otolithic membrane attachment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the connection of the otolithic (otoconial) membrane to the underlying neuroepithelium." ;
  rdfs:subClassOf obo:VT_0002895 .

obo:VT_0010981 a rdfs:Class ;
  rdfs:label "blood L-methionine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of methionine, a sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0001807 a rdfs:Class ;
  rdfs:label "blood immunoglobulin A amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the principal immunoglobulin in exocrine secretions; prevents pathogens from invading the body through the mucosa of the gastrointestinal, pulmonary, and genitourinary tracts." ;
  rdfs:subClassOf obo:VT_0002460 .

obo:VT_0010862 a rdfs:Class ;
  rdfs:label "midbrain/pons serotonin amount" ;
  rdfs:comment "The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of a monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0010838 , obo:VT_0010876 .

obo:VT_0003834 a rdfs:Class ;
  rdfs:label "adrenergic chromaffin cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells responsible for epinephrine and norepinephrine secretion." ;
  rdfs:subClassOf obo:VT_0000639 .

obo:VT_0000653 a rdfs:Class ;
  rdfs:label "sex gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the organized aggregations of cells that function as secretory or excretory organs and are associated with reproduction." ;
  rdfs:subClassOf obo:VT_0002163 .

obo:VT_0002322 a rdfs:Class ;
  rdfs:label "respiratory transport trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of gas exchange." ;
  rdfs:subClassOf obo:VT_0001943 .

obo:VT_0000580 a rdfs:Class ;
  rdfs:label "nail shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of any of the thin, horny, translucent plates covering the dorsal surface of the distal end of each terminal phalanx of the digits." ;
  rdfs:subClassOf obo:VT_0000579 .

obo:VT_0010858 a rdfs:Class ;
  rdfs:label "hypothalamus norepinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of a catecholamine hormone that functions as a neurotransmitter and is the precursor to epinephrine." ;
  rdfs:subClassOf obo:VT_0010837 , obo:VT_0010875 .

obo:VT_3000004 a rdfs:Class ;
  rdfs:label "blood viscosity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the resistance of two layers of blood to sliding against each other." ;
  rdfs:subClassOf obo:VT_0000171 .

obo:VT_0002360 a rdfs:Class ;
  rdfs:label "spleen B cell corona morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the spleen secondary B follicle that surrounds the germinal center and harbors the small recirculating B lymphocytes." ;
  rdfs:subClassOf obo:VT_0008472 .

obo:VT_0001183 a rdfs:Class ;
  rdfs:label "respiratory alveoli size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the saclike terminal dilation of the respiratory bronchioles." ;
  rdfs:subClassOf obo:VT_0002270 .

obo:VT_0015086 a rdfs:Class ;
  rdfs:label "urine mineral amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of any inorganic element or compound that has importance in body functions." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0001757 .

obo:VT_0011104 a rdfs:Class ;
  rdfs:label "vibrissa follicle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the tubular invaginations of the epidermis enclosing the hair roots and from which grow the vibrissae located on the muzzle and face of many species. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011103 .

obo:VT_1000689 a rdfs:Class ;
  rdfs:label "hindlimb mass" ;
  rdfs:comment "The amount of matter in the posterior/inferior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0000556 .

obo:VT_0010279 a rdfs:Class ;
  rdfs:label "milk growth factor amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of any factors which promote cell proliferation." ;
  rdfs:subClassOf obo:VT_0010275 .

obo:VT_0004255 a rdfs:Class ;
  rdfs:label "spongiotrophoblast layer morphology trait (sensu Rodentia)" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the middle layer of the placenta between the outermost giant cells and the innermost labyrinth layer; it has a structural role and also produces several layer-specific secreted factors." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_0000805 a rdfs:Class ;
  rdfs:label "visual cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the occipital cortex concerned with vision." ;
  rdfs:subClassOf obo:VT_0000804 .

obo:VT_0010977 a rdfs:Class ;
  rdfs:label "blood L-isoleucine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of isoleucine, a 2-amino-3-methylpentanoic acid having either (2R,3R)- or (2S,3S)-configuration." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0010584 a rdfs:Class ;
  rdfs:label "liver sterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the bile-secreting exocrine gland of a steroid with one OH group." ;
  rdfs:subClassOf obo:VT_0010497 , obo:VT_0010581 .

obo:VT_0011089 a rdfs:Class ;
  rdfs:label "vena cava ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in either of the two largest veins in the body. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011088 .

obo:VT_0015003 a rdfs:Class ;
  rdfs:label "mammary fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the milk-secreting gland that lies within the breast." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0008756 a rdfs:Class ;
  rdfs:label "T cell receptor alpha chain V-J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which V and J gene segments of the T cell receptor alpha chain are recombined." ;
  rdfs:subClassOf obo:VT_0008754 .

obo:VT_0005225 a rdfs:Class ;
  rdfs:label "vertebra development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the bony segments of the spinal column during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0010102 .

obo:VT_0010465 a rdfs:Class ;
  rdfs:label "adipocyte free fatty acid secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of free fatty acids (those not bound to other molecules or moieties) secreted from a fat cell." ;
  rdfs:subClassOf obo:VT_0005666 .

obo:VT_0002871 a rdfs:Class ;
  rdfs:label "urine albumin amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of this simple protein." ;
  rdfs:subClassOf obo:VT_0005160 .

obo:VT_0006414 a rdfs:Class ;
  rdfs:label "T cell apoptosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which T cells undergo programmed cell death." ;
  rdfs:subClassOf obo:VT_0002444 .

obo:VT_0009258 a rdfs:Class ;
  rdfs:label "thymocyte apoptosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which immature T cells located in the thymus undergo programmed cell death." ;
  rdfs:subClassOf obo:VT_0003763 .

obo:VT_0000100 a rdfs:Class ;
  rdfs:label "ethmoid bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone lying between the orbital plates of the frontal bone and anterior to the sphenoid bone; it enters into the formation of the anterior cranial fossa, the orbits, and the nasal cavity." ;
  rdfs:subClassOf obo:VT_0005246 , obo:VT_0005273 .

obo:VT_0011249 a rdfs:Class ;
  rdfs:label "cerebrum molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the largest part of the brain, derived from the telencephalon, which is composed of a right and a left hemisphere, each of which contains an outer cerebral cortex and a subcortical basal ganglia; cerebral functions include sensorimotor, emotional, and intellectual activities." ;
  rdfs:subClassOf obo:VT_0011256 , obo:VT_0015105 .

obo:VT_0010136 a rdfs:Class ;
  rdfs:label "DN4 thymocyte quantity" ;
  rdfs:comment "The proportion or number of thymocytes that have the cell surface marker phenotype CD4-negative, CD8-negative, CD44-negative, CD25-negative, and pre-TCR-positive." ;
  rdfs:subClassOf obo:VT_0000715 , obo:VT_0005089 .

obo:VT_0011381 a rdfs:Class ;
  rdfs:label "excreta mass" ;
  rdfs:comment "The amount of matter in an organism substance that is the product of an excretion process that will be eliminated from the body. An excretion process is elimination by an organism of the waste products that arise as a result of metabolic activity." ;
  rdfs:subClassOf obo:VT_0011375 .

obo:VT_0001133 a rdfs:Class ;
  rdfs:label "luteal cell differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which relatively unspecialized cells acquire the specialized features of the cells of the corpus luteum of the ovary." ;
  rdfs:subClassOf obo:VT_0003356 .

obo:VT_0010022 a rdfs:Class ;
  rdfs:label "metacarpus length" ;
  rdfs:comment "The distance from point to point along the longest axis of the bones of the forelimbs that articulate proximally with the carpal bones and distally with the phalanges." ;
  rdfs:subClassOf obo:VT_0003073 .

obo:VT_0000054 a rdfs:Class ;
  rdfs:label "ear emergence initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of the growth of the outer ear." ;
  rdfs:subClassOf obo:VT_0015029 .

obo:VT_0002423 a rdfs:Class ;
  rdfs:label "mast cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the granulated cells found in most tissues and which contain large amounts of histamine and heparin in granules." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0011056 a rdfs:Class ;
  rdfs:label "thyroid gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the thyroid gland, a two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011055 .

obo:VT_0002164 a rdfs:Class ;
  rdfs:label "gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in an organized aggregation of cells functioning as a secretory or excretory organ." ;
  rdfs:subClassOf obo:VT_1000782 .

obo:VT_0001028 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell stereociliary bundle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mechanosensitive hair bundles located at the apical end of cochlear OHCs; each hair bundle is normally composed of ~100 nonmotile, actin-filled microvilli (stereocilia) arranged in rows of increasing height and coupled to one another by morphologically distinct links: tip links, horizontal top connectors, shaft connectors, and ankle links; most hair bundles also possess a single motile kinocilium immediately adjacent to the tallest (outermost) row of stereocilia; a fifth link type, the kinocilial link, connects the kinocilium to its neighboring stereocilia." ;
  rdfs:subClassOf obo:VT_0000816 , obo:VT_0004399 .

obo:VT_0010240 a rdfs:Class ;
  rdfs:label "reticulo-rumen morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the first two compartments of the forestomach of ruminants, composed of the reticulum and the rumen which communicates anteriorly with the oesophagus and posteriorly with the omasum." ;
  rdfs:subClassOf obo:VT_0010235 .

obo:VT_0003939 a rdfs:Class ;
  rdfs:label "myotome morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mesoderm that is derived from the somite and is fated to become the skeletal musculature." ;
  rdfs:subClassOf obo:VT_0000729 .

obo:VT_1000468 a rdfs:Class ;
  rdfs:label "intestinal adipose mass" ;
  rdfs:comment "The amount of matter in the fat-storing tissue associated with the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0010063 .

obo:VT_0010536 a rdfs:Class ;
  rdfs:label "rostral migratory stream morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the transient structure formed by neurons migrating from the subventricular zone into the olfactory bulbs." ;
  rdfs:subClassOf obo:VT_0002739 .

obo:VT_0003470 a rdfs:Class ;
  rdfs:label "summary potential trait" ;
  rdfs:comment "Any measurable characteristic related to the electrophysiological recording of the activity of several cells." ;
  rdfs:subClassOf obo:VT_0002272 .

obo:VT_0001447 a rdfs:Class ;
  rdfs:label "nest-building behavior trait" ;
  rdfs:comment "Any measurable or observable behavioral characteristic related to the construction of a container or shelter made out of available materials." ;
  rdfs:subClassOf obo:VT_0010446 .

obo:VT_0009543 a rdfs:Class ;
  rdfs:label "thymus corticomedullary boundary morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the dense region demarcating the thymus medulla from the surrounding cortex that is characterized by numerous blood vessels (predominantly arterioles) with some perivascular connective tissue, mature and immature T lymphocytes, dendritic cells, variable numbers of perivascular B-lymphocytes and plasma cells; site of entry of bone marrow stem cells and exit of mature, functional T cells." ;
  rdfs:subClassOf obo:VT_0002367 .

obo:VT_0004183 a rdfs:Class ;
  rdfs:label "sympathetic nervous system physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the functions of or processes in the part of the autonomic nervous system that innervates smooth muscle, cardiac muscle and glands and mediates the body's response to stressful situations." ;
  rdfs:subClassOf obo:VT_0006276 .

obo:VT_0000353 a rdfs:Class ;
  rdfs:label "vestibular system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the sensory system responsible for the sense of head position and movement of the body through space." ;
  rdfs:subClassOf obo:VT_0003878 , obo:VT_0015097 .

obo:VT_0001328 a rdfs:Class ;
  rdfs:label "retinal layer organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the sheets of cells comprising the optic part of the retina." ;
  rdfs:subClassOf obo:VT_0003727 .

obo:VT_0010640 a rdfs:Class ;
  rdfs:label "thoracic aorta integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the part of the descending aorta superior to the aortic hiatus of the diaphragm." ;
  rdfs:subClassOf obo:VT_0010567 , obo:VT_0010639 .

obo:VT_0000173 a rdfs:Class ;
  rdfs:label "lymph vessel physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the lymph vessels." ;
  rdfs:subClassOf obo:VT_0001790 , obo:VT_0010040 .

obo:VT_0000971 a rdfs:Class ;
  rdfs:label "thermoreceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the cellular receptors that mediate the sense of temperature; in vertebrates, these are most often located under the skin." ;
  rdfs:subClassOf obo:VT_0000965 .

obo:VT_0010680 a rdfs:Class ;
  rdfs:label "glucose-6-phosphatase activity" ;
  rdfs:comment "The degree of function or response of the enzyme that hydrolyzes glucose-6-phosphate to orthophosphate and glucose." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0010324 a rdfs:Class ;
  rdfs:label "milk conjugated linoleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of any/all isomers of linoleic acid in which the double bonds are conjugated (double bonds alternate with single bonds); found especially in meat and dairy products derived from ruminants." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0001504 a rdfs:Class ;
  rdfs:label "posture trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the position of the limbs or carriage of the body." ;
  rdfs:subClassOf obo:VT_0010444 .

obo:VT_0010216 a rdfs:Class ;
  rdfs:label "jejunum villi length" ;
  rdfs:comment "The distance from point to point along the longest axis of the finger-like projections of the mucosal cell layer of the jejunum." ;
  rdfs:subClassOf obo:VT_0004002 , obo:VT_0010222 .

obo:VT_0011308 a rdfs:Class ;
  rdfs:label "kidney blood vessel ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the network of vessels that convey blood in the kidneys. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010793 , obo:VT_0011310 .

obo:VT_0002885 a rdfs:Class ;
  rdfs:label "AMPA-mediated synaptic current trait" ;
  rdfs:comment "The measured amplitude or duration of response to stimulation of AMPA receptors." ;
  rdfs:subClassOf obo:VT_0002886 .

obo:VT_0010167 a rdfs:Class ;
  rdfs:label "obsolete complement protein physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of any of the complement proteins." .

obo:VT_0008361 a rdfs:Class ;
  rdfs:label "CD8-positive, gamma-delta intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD8-positive, gamma-delta T cell of the columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0008349 .

obo:VT_0003351 a rdfs:Class ;
  rdfs:label "blood thyroid hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of hormones in the blood that are synthesized and secreted by the thyroid." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010998 a rdfs:Class ;
  rdfs:label "blood electrolyte amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any electrolyte, a substance that dissociates into two or more ions, to some extent, in water. Has importance in body functions." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010810 a rdfs:Class ;
  rdfs:label "blood pyrophosphate amount" ;
  rdfs:comment "The proportion, quantity, or volume in the blood of pyrophosphate, a phosphorus oxyanion containing two phosphorus atoms in a P-O-P linkage." ;
  rdfs:subClassOf obo:VT_0000068 .

obo:VT_0010048 a rdfs:Class ;
  rdfs:label "muscle saturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons present in the contractile tissue that effects movement; the carbon chain contains only single carbon-carbon bonds." ;
  rdfs:subClassOf obo:VT_0003249 .

obo:VT_0002314 a rdfs:Class ;
  rdfs:label "respiratory mechanics trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the action of the lungs, diaphragm, ribs and chest wall during respiration." ;
  rdfs:subClassOf obo:VT_0001943 .

obo:VT_1000706 a rdfs:Class ;
  rdfs:label "longissimus thoracis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the muscle of the back which is the intermediate and largest of the continuations of the Sacrospinalis." ;
  rdfs:subClassOf obo:VT_0010693 .

obo:VT_0010825 a rdfs:Class ;
  rdfs:label "tongue size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor." ;
  rdfs:subClassOf obo:VT_0000762 .

obo:VT_0008470 a rdfs:Class ;
  rdfs:label "spleen B cell follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the white pulp where the affinity maturation of B cells and the generation of memory B cells and plasma cells occur." ;
  rdfs:subClassOf obo:VT_0002357 .

obo:VT_0010446 a rdfs:Class ;
  rdfs:label "nesting behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic of actions or reactions related to the construction, maintenance and use of a bed or receptacle prepared by an organism for shelter." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0004425 a rdfs:Class ;
  rdfs:label "otolith organ morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the utricle and saccule of the inner ear which possess otoliths and respond to linear acceleration and deceleration, including gravity." ;
  rdfs:subClassOf obo:VT_0000034 , obo:VT_0015096 .

obo:VT_0010095 a rdfs:Class ;
  rdfs:label "osteoclast morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a large, multinucleated cell that functions in the absorption and removal of osseous tissue." ;
  rdfs:subClassOf obo:VT_0010003 .

obo:VT_0011131 a rdfs:Class ;
  rdfs:label "lateral collateral ligament ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the lateral collateral ligament, a major stabilizing ligament in the knee that attaches to the surfaces of the femur and fibula. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011052 .

obo:VT_0000472 a rdfs:Class ;
  rdfs:label "stomach squamous epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the scaly epithelial layer of the stomach." ;
  rdfs:subClassOf obo:VT_0000471 .

obo:VT_0001776 a rdfs:Class ;
  rdfs:label "blood sodium amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this metallic element, the most plentiful extracellular ion in the body and the principal determinant of extracellular fluid volume." ;
  rdfs:subClassOf obo:VT_0000068 , obo:VT_0010998 .

obo:VT_0000043 a rdfs:Class ;
  rdfs:label "obsolete total urine molecular amount" ;
  rdfs:comment "OBSOLETE." .

obo:VT_0011171 a rdfs:Class ;
  rdfs:label "carotid artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bilaterally paired branched artery that originates from the aortic arches and divides into and includes as parts the internal and external carotid arteries." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0010374 a rdfs:Class ;
  rdfs:label "milk polyunsaturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons present in milk fat; the carbon chain has two or more double or triple carbon-carbon bonds." ;
  rdfs:subClassOf obo:VT_0010305 .

obo:VT_0000954 a rdfs:Class ;
  rdfs:label "oligodendrocyte progenitor quantity" ;
  rdfs:comment "The proportion or number of cells that differentiate into the neuroglia of the central nervous system that form the insulating myelin sheath of axons." ;
  rdfs:subClassOf obo:VT_0000953 .

obo:VT_0000911 a rdfs:Class ;
  rdfs:label "trigeminal motor nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of motor neurons innervating the muscles of mastication." ;
  rdfs:subClassOf obo:VT_0000848 .

obo:VT_1000419 a rdfs:Class ;
  rdfs:label "total foot mass" ;
  rdfs:comment "The total amount of matter in all of the pedal extremities of an organism." ;
  rdfs:subClassOf obo:VT_1000686 .

obo:VT_0001200 a rdfs:Class ;
  rdfs:label "skin thickness" ;
  rdfs:comment "The distance between the surfaces of the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0002393 a rdfs:Class ;
  rdfs:label "bronchus-associated lymphoid tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the regional immune system located near the bronchus." ;
  rdfs:subClassOf obo:VT_0002722 , obo:VT_0010071 .

obo:VT_0008081 a rdfs:Class ;
  rdfs:label "single-positive T cell quantity" ;
  rdfs:comment "The proportion or number of T cells bearing either CD4-positive or CD8-positive markers on their surface." ;
  rdfs:subClassOf obo:VT_0001830 .

obo:VT_0005442 a rdfs:Class ;
  rdfs:label "cerebral cortex pyramidal cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the projection neurons in the pyramidal cell layer of the cerebral cortex." ;
  rdfs:subClassOf obo:VT_0000788 , obo:VT_0002882 .

obo:VT_0003369 a rdfs:Class ;
  rdfs:label "blood estrogen amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any substance that causes development of the female reproductive organs and secondary sexual characteristics." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0011167 a rdfs:Class ;
  rdfs:label "sperm molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the male gamete, which is produced in the testes. Sperm cells play an important role in the process of fertilization, where they fuse with a female gamete or egg cell (ovum) to form a zygote." ;
  rdfs:subClassOf obo:VT_0010042 .

obo:VT_0006011 a rdfs:Class ;
  rdfs:label "endolymphatic duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small membranous canal, connecting with both saccule and utricle of the membranous labyrinth, passing through the aqueduct of vestibule, and terminating in the endolymphatic sac." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0011265 a rdfs:Class ;
  rdfs:label "uterine cervix molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the opening of the uterus to the vagina." ;
  rdfs:subClassOf obo:VT_0001135 .

obo:VT_0010356 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-12,cis-14-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a trans double bond at C-12, and a cis double bond at C-14." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_1000642 a rdfs:Class ;
  rdfs:label "uterus length" ;
  rdfs:comment "The distance from point to point along the longest axis of the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0002637 .

obo:VT_0001684 a rdfs:Class ;
  rdfs:label "axial mesoderm development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the portion of the middle primary germ layer, which gives rise to the notochord, during its formation during gastrulation." ;
  rdfs:subClassOf obo:VT_0001680 .

obo:VT_0008131 a rdfs:Class ;
  rdfs:label "Peyer's patch quantity" ;
  rdfs:comment "The proportion or number of the protruding lymphoid tissue located on the mucosa of the small intestine that is composed of densely packed B cell follicles." ;
  rdfs:subClassOf obo:VT_0000696 .

obo:VT_0010321 a rdfs:Class ;
  rdfs:label "milk trans fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of unsaturated fatty acids containing at least one double bond in the trans configuration." ;
  rdfs:subClassOf obo:VT_0010305 .

obo:VT_0003727 a rdfs:Class ;
  rdfs:label "retinal layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the layers that make up the thin layer of neural tissue lining the back of the eyeball which contains visual receptors." ;
  rdfs:subClassOf obo:VT_0001325 .

obo:VT_0010059 a rdfs:Class ;
  rdfs:label "muscle fatty acid cis-9-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a monounsaturated, omega-9 fatty acid (C18H34O2), present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010049 .

obo:VT_0002379 a rdfs:Class ;
  rdfs:label "oropharyngeal lymphoid tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the circular lymphoid tissue formed by the lingual, pharyngeal, and facial tonsils." ;
  rdfs:subClassOf obo:VT_0002377 .

obo:VT_0011007 a rdfs:Class ;
  rdfs:label "muscle calcium amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this metallic bivalent element with atomic symbol Ca and atomic number 20." ;
  rdfs:subClassOf obo:VT_0010499 , obo:VT_0010652 .

obo:VT_0000187 a rdfs:Class ;
  rdfs:label "triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of this molecule, glycerol esterified at each of its three hydroxyl groups by a fatty acid; triglyceride is an important molecule for storage of fatty acids in adipose tissue." ;
  rdfs:subClassOf obo:VT_0001547 .

obo:VT_0002658 a rdfs:Class ;
  rdfs:label "liver regeneration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the liver regenerates healthy tissue following tissue loss." ;
  rdfs:subClassOf obo:VT_0000609 .

obo:VT_0010063 a rdfs:Class ;
  rdfs:label "visceral adipose mass" ;
  rdfs:comment "The amount of matter in the fat-storing tissue surrounding the internal organs." ;
  rdfs:subClassOf obo:VT_0010017 , obo:VT_1000220 .

obo:VT_0000060 a rdfs:Class ;
  rdfs:label "ossification initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of the formation of bone or conversion of fibrous tissue or cartilage into bone." ;
  rdfs:subClassOf obo:VT_0000057 .

obo:VT_0011328 a rdfs:Class ;
  rdfs:label "sperm viability trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the male gamete to function adequately." ;
  rdfs:subClassOf obo:VT_0001922 .

obo:VT_0000941 a rdfs:Class ;
  rdfs:label "motor neuron target finding trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of innervating neurons to stop at target site and form terminal arbors." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0000661 a rdfs:Class ;
  rdfs:label "ventral prostate size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the ventral lobe of the prostate." ;
  rdfs:subClassOf obo:VT_0000659 .

obo:VT_0015054 a rdfs:Class ;
  rdfs:label "lumbar dorsal root ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the group of nerve cell bodies located on the dorsal spinal roots within the vertebral column at the level of the lumbar vertebrae." ;
  rdfs:subClassOf obo:VT_0000961 .

obo:VT_0010851 a rdfs:Class ;
  rdfs:label "medulla oblongata 5-hydroxyindoleacetic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the medulla oblongata (the region of the brainstem that lies directly above the spinal cord and controls vital autonomic functions) of indole-3-acetic acid substituted by a hydroxy group at C-5." ;
  rdfs:subClassOf obo:VT_0010836 , obo:VT_0010874 , obo:VT_0011252 .

obo:VT_0011015 a rdfs:Class ;
  rdfs:label "muscle copper amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this metallic bioelement found in a number of proteins." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0010685 a rdfs:Class ;
  rdfs:label "peritoneum pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the serous membrane that lines the peritoneal cavity." ;
  rdfs:subClassOf obo:VT_0010684 .

obo:VT_0010084 a rdfs:Class ;
  rdfs:label "long lived plasma cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a fully differentiated plasma cell that lives for years, as opposed to months, secretes immunoglobulin, and has the phenotype weakly CD19-positive, CD20-negative, CD38-negative, strongly CD138-positive, MHC Class II-negative, surface immunoglobulin-negative, IgD-negative, and strongly CXCR4-positive; the majority of these cells of this type reside in the bone marrow." ;
  rdfs:subClassOf obo:VT_0002439 .

obo:VT_0010381 a rdfs:Class ;
  rdfs:label "milk retinol amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of one of the active forms of vitamin A." ;
  rdfs:subClassOf obo:VT_0010261 .

obo:VT_0004097 a rdfs:Class ;
  rdfs:label "cerebellar cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the thin mantle of gray matter that covers the surface of each cerebral hemisphere, including the six layers of nerve cells and the nerve pathways that connect them; together, these regions are responsible for the processes of conscious thought, perception, emotion and memory as well as advanced motor function." ;
  rdfs:subClassOf obo:VT_0000849 .

obo:VT_0000883 a rdfs:Class ;
  rdfs:label "cochlear hair bundle tip links morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the single, three-stranded inter-row filaments that extend obliquely from the tip of one stereocilium to the lateral side of an adjacent taller stereocilium; in the mouse, tip links are already detectable at E17 and persist throughout life; tips links are thought to gate the mechanotransducer channel, are lost from the cell surface after exposure to either calcium chelator BAPTA or lanthanum, and resist degradation by the protease subtilisin." ;
  rdfs:subClassOf obo:VT_0000838 .

obo:VT_0001387 a rdfs:Class ;
  rdfs:label "spiral ligament size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the thickened periosteal lining of the bony cochlea that forms the outer wall of the cochlear duct to which the basal lamina attaches." ;
  rdfs:subClassOf obo:VT_0004288 .

obo:VT_1000241 a rdfs:Class ;
  rdfs:label "fear/anxiety-related behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions in tests for fear or anxiety related behaviors." ;
  rdfs:subClassOf obo:VT_0002572 .

obo:VT_0001365 a rdfs:Class ;
  rdfs:label "Deiters cell quantity" ;
  rdfs:comment "The proportion or numbers of the supporting cells of the spiral organ which are attached to the basement membrane and receive the hair cells between their free extremities." ;
  rdfs:subClassOf obo:VT_0004302 .

obo:VT_0000133 a rdfs:Class ;
  rdfs:label "long bone metaphysis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the conical section of bone between the epiphysis and diaphysis of the long bones." ;
  rdfs:subClassOf obo:VT_0003723 .

obo:VT_0015076 a rdfs:Class ;
  rdfs:label "subarcuate fossa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the irregular depression found on the posterior inner surface of the petrous portion of the temporal bone just below its crest and above and lateral to the internal acoustic meatus." ;
  rdfs:subClassOf obo:VT_0005272 .

obo:VT_0008656 a rdfs:Class ;
  rdfs:label "interleukin-1 beta secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of an interleukin-1 subtype that is synthesized as an inactive membrane-bound pro-protein on monocytes, macrophages and other cells; proteolytic processing of the precursor form by caspase 1 results in release of the active form of interleukin-1beta from the membrane." ;
  rdfs:subClassOf obo:VT_0008650 .

obo:VT_0010223 a rdfs:Class ;
  rdfs:label "ileum mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mucous lining of the portion of the small intestine that extends from the jejunum to the colon; this consists of epithelium, lamina propria, and a layer of smooth muscle cells." ;
  rdfs:subClassOf obo:VT_0000511 .

obo:VT_0010160 a rdfs:Class ;
  rdfs:label "obsolete tumor necrosis factor-alpha physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of a a serum glycoprotein produced by activated macrophages and NK cells and involved in initiating local inflammatory responses, particularly by its action on the endothelium of local blood vessels; its actions result in increased vascular permeability and induction of expression of adhesion molecules on the endothelium." .

obo:VT_0006075 a rdfs:Class ;
  rdfs:label "retinal cone bipolar cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the retinal bipolar cells that connect to both ganglion and amacrine cells." ;
  rdfs:subClassOf obo:VT_0006073 .

obo:VT_0001032 a rdfs:Class ;
  rdfs:label "peptidergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nerve fibers believed to release small peptides as their neurotransmitter." ;
  rdfs:subClassOf obo:VT_0001025 .

obo:VT_0000940 a rdfs:Class ;
  rdfs:label "obsolete motor neuron innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of the nerve fibers of motor axons to an effector tissue.
consider: VT:0010286, VT:0010289""" .

obo:VT_0011377 a rdfs:Class ;
  rdfs:label "obsolete urine trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the fluid and dissolved substances excreted by the kidneys. See VT:0000056." .

obo:VT_0010897 a rdfs:Class ;
  rdfs:label "abdominal adipose mass" ;
  rdfs:comment "The amount of matter in the fat-storing tissue lining the cavity bounded by the abdominal walls, the diaphragm, and the pelvis, and surrounding the internal organs." ;
  rdfs:subClassOf obo:VT_0010017 , obo:VT_1000220 .

obo:VT_0000935 a rdfs:Class ;
  rdfs:label "telencephalic vesicle development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the stereotypic invaginations forming the paired diverticula of the telencephalon, from which the forebrain develops." ;
  rdfs:subClassOf obo:VT_0000934 .

obo:VT_0010604 a rdfs:Class ;
  rdfs:label "urine chloride amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the monovalent anion of chlorine." ;
  rdfs:subClassOf obo:VT_0015086 .

obo:VT_0002653 a rdfs:Class ;
  rdfs:label "ependyma morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cellular membrane that lines the brain ventricles and the central canal of the spinal cord." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0004244 a rdfs:Class ;
  rdfs:label "spontaneous abortion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the natural or accidental termination of a pregnancy at a stage where the embryo or the fetus is incapable of surviving independently of the mother." ;
  rdfs:subClassOf obo:VT_0003699 .

obo:VT_0003421 a rdfs:Class ;
  rdfs:label "thyroid gland development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:VT_0015037 .

obo:VT_0001280 a rdfs:Class ;
  rdfs:label "vibrissa retention trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to maintain the whiskers without noticeable loss." ;
  rdfs:subClassOf obo:VT_0015057 .

obo:VT_0000816 a rdfs:Class ;
  rdfs:label "cochlear hair cell stereociliary bundle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mechanosensitive hair bundles which are composed of thick long microvilli (stereocilia) and are located at the apical end of cochlear inner and outer hair cells." ;
  rdfs:subClassOf obo:VT_0002622 .

obo:VT_0002145 a rdfs:Class ;
  rdfs:label "T cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to morphology or physiology during the formation or differentiation of mature lymphocytes that are responsible for cell-mediated immunity and immune system regulation." ;
  rdfs:subClassOf obo:VT_0002401 .

obo:VT_0001098 a rdfs:Class ;
  rdfs:label "superior glossopharyngeal ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the upper ganglion of the glossopharyngeal nerve located at the jugular foramen." ;
  rdfs:subClassOf obo:VT_0001097 .

obo:VT_0003806 a rdfs:Class ;
  rdfs:label "nucleotide metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving a nucleotide, a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the glycose moiety; may be mono-, di- or triphosphate; this definition includes cyclic nucleotides (nucleoside cyclic phosphates)." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0010313 a rdfs:Class ;
  rdfs:label "milk fatty acid C11:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with an eleven-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0010774 a rdfs:Class ;
  rdfs:label "ornithine decarboxylase activity" ;
  rdfs:comment "The degree of function or response of the enzyme that catalyzes the decarboxylation of ornithine (a product of the urea cycle) to form putrescine, the rate-limiting and first committed step in polyamine synthesis." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0008038 a rdfs:Class ;
  rdfs:label "NK T cell quantity" ;
  rdfs:comment "The proportion or number of the distinct lineage of T cells expressing natural killer cell markers and having T cell receptors characterized by the usage of a restricted repertoire of variable region gene segments." ;
  rdfs:subClassOf obo:VT_0006387 , obo:VT_0008036 .

obo:VT_0005197 a rdfs:Class ;
  rdfs:label "uvea morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the pigmented vascular coat of the eyeball, consisting of the iris, ciliary body, and choroid." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0000713 a rdfs:Class ;
  rdfs:label "Reichert's cartilage development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cartilage found in the mesenchyme of the second pharyngeal arch in the embryo from which develop the stapes, styloid process, lesser horn and upper part of the body of the hyoid bone; its proximal end gives rise to the stylohyoid ligament." ;
  rdfs:subClassOf obo:VT_0015047 .

obo:VT_0000443 a rdfs:Class ;
  rdfs:label "snout morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the flesh covered anterior facial part that contains the nose, jaws, teeth, and mouth that projects from the head." ;
  rdfs:subClassOf obo:VT_0003743 , obo:VT_0015066 .

obo:VT_0000268 a rdfs:Class ;
  rdfs:label "vibrissa quantity" ;
  rdfs:comment "The proportion or number of stiff hairs projecting from the face, which act as touch receptors." ;
  rdfs:subClassOf obo:VT_0002098 .

obo:VT_0000075 a rdfs:Class ;
  rdfs:label "blood-brain barrier morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the group of barriers and transport systems in the brain capillary endothelium that controls the entrance of substances into the brain extracellular space from the blood." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_0008484 a rdfs:Class ;
  rdfs:label "spleen germinal center size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the spleen secondary B follicles where rapid B-cell proliferation, somatic hypermutation, and selection for antigen binding occur." ;
  rdfs:subClassOf obo:VT_0002359 .

obo:VT_0001274 a rdfs:Class ;
  rdfs:label "vibrissa shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the stiff hairs projecting from the face, which act as touch receptors." ;
  rdfs:subClassOf obo:VT_0002098 .

obo:VT_0010724 a rdfs:Class ;
  rdfs:label "urine ketone body amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of ketone bodies (acetoacetate, 3-hydroxybutyrate and/or acetone). Ketone bodies are produced by fatty acid and carbohydrate metabolism and seen in conditions such as starvation and diabetes mellitus." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0004082 a rdfs:Class ;
  rdfs:label "habenula morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of nuclei that makes up the small eminence on the dorsomedial surface of the thalamus, just in front of the dorsal commissure on the lateral edge of the habenular trigone." ;
  rdfs:subClassOf obo:VT_0000840 .

obo:VT_0002895 a rdfs:Class ;
  rdfs:label "otolithic membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the gelatinous membrane which is supported by the stereocilia of the hair cells of the maculae of the saccule and utriculus of the inner ear; adhering to its surface are numerous calciferous crystalline particles called otoliths (statoconia)." ;
  rdfs:subClassOf obo:VT_0004425 .

obo:VT_0010028 a rdfs:Class ;
  rdfs:label "milk total protein amount" ;
  rdfs:comment "The total proportion, quantity, or volume of protein in milk." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0001938 a rdfs:Class ;
  rdfs:label "time of sexual maturation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the time of maturation of the sexual organs." ;
  rdfs:subClassOf obo:VT_0002212 .

obo:VT_0008401 a rdfs:Class ;
  rdfs:label "CD8-positive, alpha-beta intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD8-positive, alpha-beta T cell of the columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0005010 , obo:VT_0008399 .

obo:VT_0004214 a rdfs:Class ;
  rdfs:label "long bone diaphysis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the main or mid section (shaft) of a long bone." ;
  rdfs:subClassOf obo:VT_0003723 .

obo:VT_0002265 a rdfs:Class ;
  rdfs:label "left major bronchus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the conducting airway leading to the left lobe of the lungs." ;
  rdfs:subClassOf obo:VT_0002264 .

obo:VT_0000703 a rdfs:Class ;
  rdfs:label "thymus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0002722 , obo:VT_0010250 .

obo:VT_0000796 a rdfs:Class ;
  rdfs:label "sensory dissociation area morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the parietal lobe that integrates tactile and visual stimuli." ;
  rdfs:subClassOf obo:VT_0000794 .

obo:VT_0010428 a rdfs:Class ;
  rdfs:label "parametrial fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the extension of the subserous coat of the uterus laterally between the layers of the broad ligament." ;
  rdfs:subClassOf obo:VT_0015005 .

obo:VT_0002441 a rdfs:Class ;
  rdfs:label "granulocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of leukocytes that have abundant granules in the cytoplasm, including basophils, neutrophils, and eosinophils." ;
  rdfs:subClassOf obo:VT_0008246 .

obo:VT_0000165 a rdfs:Class ;
  rdfs:label "hypertrophic chondrocyte zone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the layer of the epiphyseal plate where no cell division occurs and chondrocytes begin to terminally differentiate." ;
  rdfs:subClassOf obo:VT_0003055 .

obo:VT_0002090 a rdfs:Class ;
  rdfs:label "vision trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes involved with the ability to see." ;
  rdfs:subClassOf obo:VT_0005253 .

obo:VT_0002700 a rdfs:Class ;
  rdfs:label "vitreous body clarity" ;
  rdfs:comment "The degree of transparency of the gel filling the inner portion of the eyeball between the lens and retina." ;
  rdfs:subClassOf obo:VT_0002699 .

obo:VT_0004797 a rdfs:Class ;
  rdfs:label "blood anti-erythrocyte antigen antibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies to erythrocyte antigen." ;
  rdfs:subClassOf obo:VT_0003725 .

obo:VT_0011058 a rdfs:Class ;
  rdfs:label "retina ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the thin layer of neural tissue lining the back of the eyeball which contains visual receptors. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011022 , obo:VT_0011057 .

obo:VT_0001547 a rdfs:Class ;
  rdfs:label "lipid amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body fluid or tissue of fat-soluble substances (molecules composed of carbon and hydrogen and are characteristically insoluble in water)." ;
  rdfs:subClassOf obo:VT_0002118 .

obo:VT_0011018 a rdfs:Class ;
  rdfs:label "stellate ganglion molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the postsynaptic neurons formed by the fusion of the inferior cervical and first thoracic ganglia." ;
  rdfs:subClassOf obo:VT_0001017 .

obo:VT_0002204 a rdfs:Class ;
  rdfs:label "obsolete neurotransmitter amount" ;
  rdfs:comment "OBSOLETE. The proportion, quantity, or volume of endogenous signaling molecules secreted by neurons that alter the behavior of neurons or effector cells." .

obo:VT_0011150 a rdfs:Class ;
  rdfs:label "intervertebral disk ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the cartilaginous and gelatinous structures found between the bodies of adjacent vertebrae. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011149 , obo:VT_0011234 .

obo:VT_0000786 a rdfs:Class ;
  rdfs:label "neuroepithelial layer differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which relatively unspecialized cells acquire the specialized features of the epithelial cell layer that lines the neural tube and develops into the nervous system and neural crest cells." ;
  rdfs:subClassOf obo:VT_0000913 , obo:VT_0004261 .

obo:VT_0007010 a rdfs:Class ;
  rdfs:label "cardiomyocyte quantity" ;
  rdfs:comment "The proportion or number of striated muscle cells in the heart as a whole or in any substructure of the heart." ;
  rdfs:subClassOf obo:VT_0000061 , obo:VT_0010118 .

obo:VT_0001649 a rdfs:Class ;
  rdfs:label "symphysis menti morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fibrocartilagenous union of the two halves of the mandible (embryonic stages)." ;
  rdfs:subClassOf obo:VT_0003935 .

obo:VT_0005443 a rdfs:Class ;
  rdfs:label "ethanol metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to metabolize the clear, colorless liquid that is the primary ingredient in alcoholic beverages." ;
  rdfs:subClassOf obo:VT_0015089 .

obo:VT_0001135 a rdfs:Class ;
  rdfs:label "uterine cervix morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the opening of the uterus to the vagina." ;
  rdfs:subClassOf obo:VT_0001119 .

obo:VT_0008169 a rdfs:Class ;
  rdfs:label "B-1b B cell quantity" ;
  rdfs:comment "The proportion or number of the B-1 B cell subset not bearing the CD5 surface marker, but having other phenotypic attributes of a B-1 B cell." ;
  rdfs:subClassOf obo:VT_0004976 , obo:VT_0008165 .

obo:VT_0001830 a rdfs:Class ;
  rdfs:label "effector T cell quantity" ;
  rdfs:comment "The proportion or numbers of the set of T lymphocytes that are able to respond immediately upon contact with cells bearing the appropriate peptide:MHC complex for the cell." ;
  rdfs:subClassOf obo:VT_0002435 , obo:VT_0006387 .

obo:VT_0003921 a rdfs:Class ;
  rdfs:label "heart left ventricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0005294 .

obo:VT_4000009 a rdfs:Class ;
  rdfs:label "skin layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the individual layers of the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0002210 a rdfs:Class ;
  rdfs:label "sex determination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to primary or secondary sexual development or characteristics." ;
  rdfs:subClassOf obo:VT_0003936 .

obo:VT_0001145 a rdfs:Class ;
  rdfs:label "male reproductive system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organs associated with producing offspring in the gender that produces spermatozoa." ;
  rdfs:subClassOf obo:VT_0002160 .

obo:VT_1000643 a rdfs:Class ;
  rdfs:label "sperm production trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the production of mature male germ cells." ;
  rdfs:subClassOf obo:VT_0001156 .

obo:VT_0000065 a rdfs:Class ;
  rdfs:label "medullary cavity morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the marrow cavity in the shaft of a long bone." ;
  rdfs:subClassOf obo:VT_0004214 .

obo:VT_0000190 a rdfs:Class ;
  rdfs:label "blood vessel permeability trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of gases, liquids, or solutes to pass through the blood vessel wall." ;
  rdfs:subClassOf obo:VT_0000170 .

obo:VT_0000886 a rdfs:Class ;
  rdfs:label "cerebellar granule layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the innermost cortical layer of the cerebellum; contains densely packed small neurons, mostly granule cells with some Golgi cells are found at the outer border." ;
  rdfs:subClassOf obo:VT_0004097 .

obo:VT_0000822 a rdfs:Class ;
  rdfs:label "brain ventricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cavities of the brain filled with cerebrospinal fluid." ;
  rdfs:subClassOf obo:VT_0002200 .

obo:VT_0010437 a rdfs:Class ;
  rdfs:label "response to parasitic infection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter immune processes or function as a result of invasion and multiplication of parasites (organisms that live in or on another and draw their nourishment therefrom) in the tissues, or of exposure to components of or toxins produced by parasites." ;
  rdfs:subClassOf obo:VT_0010434 .

obo:VT_0000150 a rdfs:Class ;
  rdfs:label "rib morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the elongated, curved bones forming the bony wall of the chest." ;
  rdfs:subClassOf obo:VT_0004134 , obo:VT_0010092 .

obo:VT_0010582 a rdfs:Class ;
  rdfs:label "blood sterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a steroid with one OH group." ;
  rdfs:subClassOf obo:VT_0003949 , obo:VT_0010581 .

obo:VT_0007031 a rdfs:Class ;
  rdfs:label "heart left ventricle mass" ;
  rdfs:comment "The amount of matter in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0002753 .

obo:VT_0001033 a rdfs:Class ;
  rdfs:label "parasympathetic nervous system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the autonomic nervous system that innervates smooth muscle, cardiac muscle and glands and regulates homeostasis." ;
  rdfs:subClassOf obo:VT_0002751 .

obo:VT_0003879 a rdfs:Class ;
  rdfs:label "hair cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the sensory epithelial cells of the inner ear." ;
  rdfs:subClassOf obo:VT_0003878 , obo:VT_0005423 .

obo:VT_0010542 a rdfs:Class ;
  rdfs:label "enamel thickness" ;
  rdfs:comment "The distance between the surfaces of the hard outer coating of the exposed portion of the tooth." ;
  rdfs:subClassOf obo:VT_0002576 .

obo:VT_0000819 a rdfs:Class ;
  rdfs:label "olfactory bulb morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the forebrain region that coordinates neuronal signaling involved in the perception of smell; it receives input from the sensory neurons and outputs to the olfactory cortex." ;
  rdfs:subClassOf obo:VT_0005235 .

obo:VT_0004138 a rdfs:Class ;
  rdfs:label "mucous neck cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mucin-producing epithelial cells present in the neck of the gastric glands." ;
  rdfs:subClassOf obo:VT_0003892 .

obo:VT_0005424 a rdfs:Class ;
  rdfs:label "body movement coordination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to skillful and effective interaction of motions of the whole body or a portion of the body." ;
  rdfs:subClassOf obo:VT_0001516 .

obo:VT_0010809 a rdfs:Class ;
  rdfs:label "urine sorbital dehydrogenase amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the enzyme sorbital dehydrogenase, an enzyme that converts sorbitol, the sugar alcohol form of glucose, into fructose." ;
  rdfs:subClassOf obo:VT_0100011 .

obo:VT_0010944 a rdfs:Class ;
  rdfs:label "liver glucokinase activity" ;
  rdfs:comment "The degree of function or response in the liver of the enzyme that catalyzes the phosphorylation of glucose to glucose-6-phosphate." ;
  rdfs:subClassOf obo:VT_0010943 .

obo:VT_0010074 a rdfs:Class ;
  rdfs:label "enteric cholinergic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers that utilize acetylcholine as a neurotransmitter and transmit impulses to the alimentary tube." ;
  rdfs:subClassOf obo:VT_0010062 .

obo:VT_0010053 a rdfs:Class ;
  rdfs:label "muscle fatty acid C18:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C18H36O2) present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010048 .

obo:VT_0010675 a rdfs:Class ;
  rdfs:label "semimembranosus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the muscle of the thigh that is the most medial of the three hamstring muscles." ;
  rdfs:subClassOf obo:VT_0003398 .

obo:VT_0003009 a rdfs:Class ;
  rdfs:label "cytokine secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of any of the non-antibody proteins made by inflammatory leukocytes and some non-leukocytic cells that affect the behavior of other cells." ;
  rdfs:subClassOf obo:VT_0010031 .

obo:VT_0000446 a rdfs:Class ;
  rdfs:label "snout length" ;
  rdfs:comment "The distance from point to point along the longest axis of the anterior facial part of the muzzle." ;
  rdfs:subClassOf obo:VT_0000002 , obo:VT_0000444 .

obo:VT_0008704 a rdfs:Class ;
  rdfs:label "interleukin-6 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine that stimulates the growth and differentiation of B-cells and is also a growth factor for hybridomas and plasmacytomas, and is produced by many different cells including T-cells, monocytes and fibroblasts." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_2000003 a rdfs:Class ;
  rdfs:label "regional blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the blood pressure in a specific region of the body, tissue, or organ." ;
  rdfs:subClassOf obo:VT_0000183 .

obo:VT_0010556 a rdfs:Class ;
  rdfs:label "aorta elastic tissue integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the slender connective tissue fiber in tissue of the main trunk of the systemic arteries which is characterized by great elasticity." ;
  rdfs:subClassOf obo:VT_0003211 , obo:VT_0010602 .

obo:VT_0010339 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-13-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a cis double bond at C-13." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010648 a rdfs:Class ;
  rdfs:label "muscle glycogen amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of the polysaccharide which is the storage form for glucose in the liver and muscles; readily converted to glucose when blood glucose level decreases." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0005667 a rdfs:Class ;
  rdfs:label "blood leptin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the peptide hormone secreted by white adipocytes and believed to regulate food intake and energy balance." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010879 a rdfs:Class ;
  rdfs:label "blood reactive oxygen metabolite amount" ;
  rdfs:comment "The proportion, quantity, or volume of hydroperoxides measured in whole blood, serum, or plasma as derivatives in a DROM spectrophotometric test." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0007048 a rdfs:Class ;
  rdfs:label "aorta elastic tissue molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic pertaining to the proportions of molecules (proteins, minerals, nutrients, gases, or other substances) within the slender connective tissue fiber in tissue of the main trunk of the systemic arteries which is characterized by great elasticity." ;
  rdfs:subClassOf obo:VT_0003211 , obo:VT_0010946 .

obo:VT_0008113 a rdfs:Class ;
  rdfs:label "macrophage development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the large mononuclear phagocytes which differentiate from monocytes, are typically resident in a particular tissue, and are capable of phagocytosing a variety of extracellular particulate material, including immune complexes, microorganisms, and dead cells." ;
  rdfs:subClassOf obo:VT_0001601 .

obo:VT_0001097 a rdfs:Class ;
  rdfs:label "superior glossopharyngeal ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upper ganglion of the glossopharyngeal nerve located at the jugular foramen." ;
  rdfs:subClassOf obo:VT_0001096 .

obo:VT_0001758 a rdfs:Class ;
  rdfs:label "urine glucose amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the monosaccharide that is the end product of carbohydrate digestion." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0002258 a rdfs:Class ;
  rdfs:label "cricoid cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the most inferior of the laryngeal cartilages." ;
  rdfs:subClassOf obo:VT_0002256 .

obo:VT_0008721 a rdfs:Class ;
  rdfs:label "chemokine amount" ;
  rdfs:comment "The proportion, quantity, or volume of any of the class of pro-inflammatory cytokines that attract and activate leukocytes." ;
  rdfs:subClassOf obo:VT_0008713 .

obo:VT_0002924 a rdfs:Class ;
  rdfs:label "central nervous system synapse formation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of generating connections between an axon and effector tissue or neuron." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0010165 a rdfs:Class ;
  rdfs:label "obsolete interleukin-2 activity" ;
  rdfs:comment "OBSOLETE. The degree of function or response of this cytokine released by helper T cells that stimulates proliferation of T lymphocytes and activated B lymphocytes." .

obo:VT_0002840 a rdfs:Class ;
  rdfs:label "lens fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the elongated cells of the crystalline lens of the eye." ;
  rdfs:subClassOf obo:VT_0001303 .

obo:VT_0011161 a rdfs:Class ;
  rdfs:label "tibialis anterior muscle mass" ;
  rdfs:comment "The amount of matter in the muscle of the shin that is responsible for dorsiflexion and inversion of the foot." ;
  rdfs:subClassOf obo:VT_0003083 , obo:VT_1000712 .

obo:VT_0011228 a rdfs:Class ;
  rdfs:label "emotional memory trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to recall experiences linked with strong emotions better than neutral experiences. This type of memory is influenced by brain regions like the amygdala and hippocampus and is less likely to be forgotten over time." ;
  rdfs:subClassOf obo:VT_0002063 .

obo:VT_0003156 a rdfs:Class ;
  rdfs:label "leukocyte migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement of white blood cells from point to point." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0003883 a rdfs:Class ;
  rdfs:label "stomach size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0000470 .

obo:VT_0000199 a rdfs:Class ;
  rdfs:label "blood albumin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the major blood protein that is important in maintenance of the colloidal osmotic pressure, fatty acid transport, and transport of large organic molecules." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0001882 a rdfs:Class ;
  rdfs:label "lactation trait" ;
  rdfs:comment "Any measurable characteristic related to the production of milk from the mammary gland." ;
  rdfs:subClassOf obo:VT_0001881 .

obo:VT_0008744 a rdfs:Class ;
  rdfs:label "B cell anergy trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process contributing to anergy in B cells, a state of functional inactivation which is part of B cell tolerance induction." ;
  rdfs:subClassOf obo:VT_0004944 , obo:VT_0005004 .

obo:VT_0000897 a rdfs:Class ;
  rdfs:label "midbrain morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the middle division of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes a ventral part containing the cerebral peduncles and a dorsal tectum containing the corpora quadrigemina and that surrounds the aqueduct of Sylvius connecting the third and fourth ventricles)." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0004771 a rdfs:Class ;
  rdfs:label "blood anti-single stranded DNA antibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies that recognize single stranded DNA." ;
  rdfs:subClassOf obo:VT_0004794 .

obo:VT_0005418 a rdfs:Class ;
  rdfs:label "blood hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any of the chemical substances that have specific regulatory effects on the activity of a certain organ or organs; originally applied to substances secreted by various endocrine glands and transported in the bloodstream to the target organs, it is sometimes extended to include substances that are not produced by the endocrine glands but that have similar effects." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010392 a rdfs:Class ;
  rdfs:label "milk mucin 1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of a cell-surface associated mucin protein." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0000639 a rdfs:Class ;
  rdfs:label "adrenal gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the endocrine glands located above the kidney responsible for hormone and epinephrine secretion." ;
  rdfs:subClassOf obo:VT_0002163 .

obo:VT_0007089 a rdfs:Class ;
  rdfs:label "heart right ventricle posterior wall thickness" ;
  rdfs:comment "The distance between the surfaces of the wall closest to the back of the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0007088 .

obo:VT_0000262 a rdfs:Class ;
  rdfs:label "venous blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood flow in the veins." ;
  rdfs:subClassOf obo:VT_0000182 .

obo:VT_0010213 a rdfs:Class ;
  rdfs:label "jejunum mass" ;
  rdfs:comment "The amount of matter in the portion of the small intestine that extends from the duodenum to the ileum." ;
  rdfs:subClassOf obo:VT_0004002 , obo:VT_0010140 .

obo:VT_0000135 a rdfs:Class ;
  rdfs:label "outflow tract morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the path through which blood exits the heart." ;
  rdfs:subClassOf obo:VT_0002127 .

obo:VT_0004167 a rdfs:Class ;
  rdfs:label "cingulate gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the ridge in the cerebral cortex located dorsal to the corpus callosum that controls autonomic functions regulating heart rate and blood pressure as well as cognitive and attentional processing." ;
  rdfs:subClassOf obo:VT_0000788 , obo:VT_0004169 .

obo:VT_0000741 a rdfs:Class ;
  rdfs:label "detrusor smooth muscle contractility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the non-striated, involuntary muscle tissue surrounding the urinary bladder to shorten or to develop increased tension." ;
  rdfs:subClassOf obo:VT_0000740 .

obo:VT_0000959 a rdfs:Class ;
  rdfs:label "somatic sensory system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the neural tissue involved in the transmission of sensory signals." ;
  rdfs:subClassOf obo:VT_0002752 .

obo:VT_0001359 a rdfs:Class ;
  rdfs:label "organ of Corti patterning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the organization of the various cell types within the organ of Corti into a set number of distinct rows." ;
  rdfs:subClassOf obo:VT_0000042 .

obo:VT_0004266 a rdfs:Class ;
  rdfs:label "placenta color" ;
  rdfs:comment "The visually perceived hue of the organ of metabolic interchange between fetus and mother, partly of embryonic origin and partly of maternal origin." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_1000283 a rdfs:Class ;
  rdfs:label "tibia mineral mass" ;
  rdfs:comment "The amount of matter in the minerals (inorganic elements or compounds that have importance in body functions) in the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0005007 , obo:VT_0010015 .

obo:VT_0010806 a rdfs:Class ;
  rdfs:label "quadriceps mass" ;
  rdfs:comment "The amount of matter in the group of four muscles (rectus femoris, vastus intermedius, vastus lteralis, and vastus medialis) which extend down the front of the thigh and are the major extensors of the knee joint." ;
  rdfs:subClassOf obo:VT_0010449 , obo:VT_0010569 .

obo:VT_0000527 a rdfs:Class ;
  rdfs:label "kidney development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0003942 .

obo:VT_0010409 a rdfs:Class ;
  rdfs:label "placenta physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organ of metabolic interchange between fetus and mother, partly of embryonic origin and partly of maternal origin." ;
  rdfs:subClassOf obo:VT_0004264 .

obo:VT_0002699 a rdfs:Class ;
  rdfs:label "vitreous body morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the transparent, semigelatinous substance that fills the cavity behind the crystalline lens of the eye and in front of the retina." ;
  rdfs:subClassOf obo:VT_0005195 , obo:VT_0005299 .

obo:VT_0010567 a rdfs:Class ;
  rdfs:label "thoracic aorta morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the descending aorta superior to the aortic hiatus of the diaphragm." ;
  rdfs:subClassOf obo:VT_0000272 .

obo:VT_0011004 a rdfs:Class ;
  rdfs:label "glycerophosphocholine amount" ;
  rdfs:comment "The proportion, quantity, or volume of the glycerol phosphate ester of a phosphocholine; one of two major forms of choline storage (along with phosphocholine) in the cytosol." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0003514 a rdfs:Class ;
  rdfs:label "interlabial sulcus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of grooves or furrows in the folds of skin between the labia on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003511 .

obo:VT_0015098 a rdfs:Class ;
  rdfs:label "nociception system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the structures involved in the series of events required for an organism to sense pain." ;
  rdfs:subClassOf obo:VT_0005392 .

obo:VT_0010115 a rdfs:Class ;
  rdfs:label "diaphragm size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the thin musculomebranous barrier that separates the abdominal and thoracic cavities; often used for breathing control." ;
  rdfs:subClassOf obo:VT_0002279 , obo:VT_0003398 .

obo:VT_0001418 a rdfs:Class ;
  rdfs:label "tectorial membrane size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the overlaying membrane of the cochlear duct." ;
  rdfs:subClassOf obo:VT_0003149 .

obo:VT_0010154 a rdfs:Class ;
  rdfs:label "Purkinje cell nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers that connect to the neurons located at the interface of the molecular and internal granule layers of the cerebellar cortex." ;
  rdfs:subClassOf obo:VT_0000877 , obo:VT_0010142 .

obo:VT_0004481 a rdfs:Class ;
  rdfs:label "conjunctival epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the conjunctival layer of epithelial cells covering inner surface of the eyelid and the front of the eyeball except over the cornea." ;
  rdfs:subClassOf obo:VT_0001310 .

obo:VT_0003452 a rdfs:Class ;
  rdfs:label "parotid gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of either of the largest of the major salivary glands situated below and in front of each ear and opening into the parotid duct." ;
  rdfs:subClassOf obo:VT_0003792 .

obo:VT_0010202 a rdfs:Class ;
  rdfs:label "stomach epithelium thickness" ;
  rdfs:comment "The distance between the surfaces of the layer of epithelial cells of the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0000471 , obo:VT_0003883 .

obo:VT_0001898 a rdfs:Class ;
  rdfs:label "long-term synaptic depression trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the persistent activity-dependent decrease in synaptic efficacy between neurons, often following slow, weak stimulation of neurons." ;
  rdfs:subClassOf obo:VT_0002915 .

obo:VT_0011274 a rdfs:Class ;
  rdfs:label "meibomian gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the sebaceous glands embedded in the tarsal plate of each eyelid." ;
  rdfs:subClassOf obo:VT_0005252 .

obo:VT_0002270 a rdfs:Class ;
  rdfs:label "respiratory alveolus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small sac-like dilations of the distal airspace of the lung; they are present along the walls of the alveolar sacs, alveolar ducts and terminal bronchioles; gas exchange of oxygen and carbon dioxide between alveolar air and blood in the pulmonary capillaries takes place across the cell walls." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0000763 a rdfs:Class ;
  rdfs:label "filiform papillae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the keratinized projections on the dorsal surface of the tongue." ;
  rdfs:subClassOf obo:VT_0000764 .

obo:VT_0011311 a rdfs:Class ;
  rdfs:label "conceptus quantity" ;
  rdfs:comment "The proportion or number of fertilized eggs, embryos, or fetuses." ;
  rdfs:subClassOf obo:VT_0002161 .

obo:VT_1000733 a rdfs:Class ;
  rdfs:label "heel depth" ;
  rdfs:comment "The vertical distance from the ground to the hairline at the back of the hoof." ;
  rdfs:subClassOf obo:VT_0011223 .

obo:VT_0005074 a rdfs:Class ;
  rdfs:label "granulocyte bactericidal activity" ;
  rdfs:comment "The degree of function or response of neutrophils, eosinophils, or basophils in the killing of bacteria." ;
  rdfs:subClassOf obo:VT_0002462 .

obo:VT_0006195 a rdfs:Class ;
  rdfs:label "eyeball orientation trait" ;
  rdfs:comment "The location or arrangement of the eye proper in relation to the eye socket." ;
  rdfs:subClassOf obo:VT_0001299 .

obo:VT_0011366 a rdfs:Class ;
  rdfs:label "viable embryo quantity" ;
  rdfs:comment "The proportion or number of embryos that have attained such form and development of structures as to be normally capable of survival." ;
  rdfs:subClassOf obo:VT_0011364 .

obo:VT_1000653 a rdfs:Class ;
  rdfs:label "lactation duration" ;
  rdfs:comment "The period of time over which milk is produced from the mammary gland." ;
  rdfs:subClassOf obo:VT_0001882 .

obo:VT_0004392 a rdfs:Class ;
  rdfs:label "CD8-positive T cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the subset of T lymphocytes that express the CD8 marker on the cell surface." ;
  rdfs:subClassOf obo:VT_0002444 .

obo:VT_0001456 a rdfs:Class ;
  rdfs:label "otic capsule size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cartilage or bony capsule surrounding the inner ear mechanism." ;
  rdfs:subClassOf obo:VT_0000039 .

obo:VT_0003507 a rdfs:Class ;
  rdfs:label "ovary physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0003699 , obo:VT_0005647 .

obo:VT_0011070 a rdfs:Class ;
  rdfs:label "tendon ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the fibrous bands or cords of connective tissue at the ends of muscle fibers that attach muscles to bones and other structures. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011069 , obo:VT_0011284 .

obo:VT_0003663 a rdfs:Class ;
  rdfs:label "behavioral response to thermal stimulus trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its actions or reactions as a result of a detectable change or difference in temperature." ;
  rdfs:subClassOf obo:VT_0002067 .

obo:VT_1000206 a rdfs:Class ;
  rdfs:label "nipple quantity" ;
  rdfs:comment "The proportion or number of mammary gland projections containing the outlets of the milk ducts through which milk is excreted." ;
  rdfs:subClassOf obo:VT_0006078 .

obo:VT_0005388 a rdfs:Class ;
  rdfs:label "respiratory system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the system responsible for the exchange of oxygen and carbon dioxide with the environment." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0003114 a rdfs:Class ;
  rdfs:label "parathyroid gland pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in either of the two small, paired endocrine glands, usually found embedded in the connective tissue capsule on the posterior surface of the thyroid gland; they secrete parathyroid hormone (PTH) that regulates calcium and phosphorus metabolism." ;
  rdfs:subClassOf obo:VT_0000678 .

obo:VT_0010531 a rdfs:Class ;
  rdfs:label "operant conditioning behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism pertaining to the ability of a behavior's antecedent and/or its consequence to influence the occurrence and form of behavior." ;
  rdfs:subClassOf obo:VT_0010527 .

obo:VT_0003626 a rdfs:Class ;
  rdfs:label "kidney medulla cell quantity" ;
  rdfs:comment "The proportion or number of cells in the inner portion of the kidney consisting of the renal pyramids." ;
  rdfs:subClassOf obo:VT_0003014 .

obo:VT_0011187 a rdfs:Class ;
  rdfs:label "lumbar vertebra ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011068 , obo:VT_0011186 .

obo:VT_0003850 a rdfs:Class ;
  rdfs:label "thymocyte activation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of producing activated thymocytes from naive thymocytes." ;
  rdfs:subClassOf obo:VT_0001828 , obo:VT_0003763 .

obo:VT_0000098 a rdfs:Class ;
  rdfs:label "vomer bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the triangular flat bone of the nasal septum." ;
  rdfs:subClassOf obo:VT_0005274 .

obo:VT_0003745 a rdfs:Class ;
  rdfs:label "mouth mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mucus-secreting tissue that lines the oral cavity." ;
  rdfs:subClassOf obo:VT_0000452 .

obo:VT_0010147 a rdfs:Class ;
  rdfs:label "obsolete inflammatory mediator physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of any of the endogenous compounds that mediate the local accumulation of fluid, plasma proteins, and leukocytes at the site of injury, insult, or infection." .

obo:VT_0003125 a rdfs:Class ;
  rdfs:label "cloaca septation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the separation of the single opening of the digestive, urinary, and reproductive tracts (cloaca) into multiple isolated openings during development." ;
  rdfs:subClassOf obo:VT_0003119 , obo:VT_0003936 , obo:VT_0003942 , obo:VT_0015067 .

obo:VT_0005335 a rdfs:Class ;
  rdfs:label "gonadal fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the ovaries or testes." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0010571 a rdfs:Class ;
  rdfs:label "prostate integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the gland surrounding the beginning of the urethra in males that secretes part of the seminal fluid." ;
  rdfs:subClassOf obo:VT_0001158 .

obo:VT_0002434 a rdfs:Class ;
  rdfs:label "T-helper 2 cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the type of T-helper cell whose cytokine production promotes defense against extracellular parasites and humoral immune responses typical of allergy." ;
  rdfs:subClassOf obo:VT_0002432 .

obo:VT_1000210 a rdfs:Class ;
  rdfs:label "scrotum circumference" ;
  rdfs:comment "The distance around the external sac of skin that encloses the testes." ;
  rdfs:subClassOf obo:VT_0001150 .

obo:VT_0011206 a rdfs:Class ;
  rdfs:label "muscle creatinine content" ;
  rdfs:comment "The proportion, quantity, or volume of a metabolite of creatine detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0000623 a rdfs:Class ;
  rdfs:label "salivation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the flow, secretion, or amount of saliva." ;
  rdfs:subClassOf obo:VT_0005310 .

obo:VT_0002199 a rdfs:Class ;
  rdfs:label "brain commissure morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the nerve fiber tracts that span the longitudinal fissure between the cerebral and/or cerebellar hemispheres of the brain." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0000184 a rdfs:Class ;
  rdfs:label "blood HDL cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the small lipoprotein:cholesterol complex that transports cholesterol out of the arteries and to the liver for reprocessing or excretion." ;
  rdfs:subClassOf obo:VT_0000180 .

obo:VT_0010365 a rdfs:Class ;
  rdfs:label "milk fatty acid C20:4(n-6) amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated, omega-6 fatty acid with a twenty-carbon backbone and four double bonds." ;
  rdfs:subClassOf obo:VT_0010323 .

obo:VT_0004280 a rdfs:Class ;
  rdfs:label "oculomotor nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of motor neurons in the floor of the midbrain that gives rise to motor fibers of the oculomotor nerve." ;
  rdfs:subClassOf obo:VT_0000897 .

obo:VT_0004203 a rdfs:Class ;
  rdfs:label "cranial flexure morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sharp, ventrally concave bend in the developing midbrain of the embryo." ;
  rdfs:subClassOf obo:VT_0003864 .

obo:VT_0000801 a rdfs:Class ;
  rdfs:label "temporal lobe morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lower lateral part of the cerebral hemisphere." ;
  rdfs:subClassOf obo:VT_0015105 .

obo:VT_0011116 a rdfs:Class ;
  rdfs:label "inferior alveolar nerve ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the branch of the mandibular nerve responsible for sensory innervation to the gingivae on the lower jaw. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011115 .

obo:VT_0002581 a rdfs:Class ;
  rdfs:label "ileum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the portion of the small intestine that extends from the jejunum to the colon." ;
  rdfs:subClassOf obo:VT_0000496 .

obo:VT_0011375 a rdfs:Class ;
  rdfs:label "excreta trait" ;
  rdfs:comment "Any measurable or observable characteristic related to an organism substance that is the product of an excretion process that will be eliminated from the body. An excretion process is elimination by an organism of the waste products that arise as a result of metabolic activity." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0010357 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-7,trans-9-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-7 and C-9." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0005277 a rdfs:Class ;
  rdfs:label "brainstem morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the midbrain, pons, or medulla." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_1000664 a rdfs:Class ;
  rdfs:label "feather morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the surface covering of birds, made of keratin." ;
  rdfs:subClassOf obo:VT_0010007 .

obo:VT_0010266 a rdfs:Class ;
  rdfs:label "milk beta-lactoglobulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of beta-lactoglobulin, which may bind retinol; this milk constituent is allergenic." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0003074 a rdfs:Class ;
  rdfs:label "metacarpus quantity" ;
  rdfs:comment "The proportion or number of bones of the forelimbs that articulate proximally with the carpal bones and distally with the phalanges." ;
  rdfs:subClassOf obo:VT_0003073 .

obo:VT_0010238 a rdfs:Class ;
  rdfs:label "crop morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the esophageal anatomical diverticulum in some species." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0000717 a rdfs:Class ;
  rdfs:label "lymphocyte quantity" ;
  rdfs:comment "The proportion or number of the cells involved in adaptive immune reactions of the body, including B cells, T cells, and natural killer cells." ;
  rdfs:subClassOf obo:VT_0000217 , obo:VT_0002619 .

obo:VT_0000558 a rdfs:Class ;
  rdfs:label "tibia morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0010105 .

obo:VT_0002408 a rdfs:Class ;
  rdfs:label "double-positive T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the subset of T cells found in the thymus that express both CD4 and CD8." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0001360 a rdfs:Class ;
  rdfs:label "social investigation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the behavior of animals to approach and examine other animals." ;
  rdfs:subClassOf obo:VT_0010445 .

obo:VT_0010328 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9-C17:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with a seventeen-carbon backbone and a cis double bond at C-9." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010380 a rdfs:Class ;
  rdfs:label "milk beta-carotene amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of a carotenoid that is the most common precursor to vitamin A." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_1000781 a rdfs:Class ;
  rdfs:label "nervous/sensory system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the system responsible for receiving and processing information about an organism's environment and controlling behavior." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0002377 a rdfs:Class ;
  rdfs:label "mucosa-associated lymphoid tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the regional immune system associated with the mucosa." ;
  rdfs:subClassOf obo:VT_0002722 , obo:VT_0010071 .

obo:VT_0000537 a rdfs:Class ;
  rdfs:label "urethra morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the canal leading from the bladder, discharging the urine externally." ;
  rdfs:subClassOf obo:VT_0000516 .

obo:VT_0002949 a rdfs:Class ;
  rdfs:label "neural crest cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the transient and migratory group of cells that emerge from the dorsal region of the neural tube and disperse to many peripheral locations, ultimately differentiating to form various tissues of the adult." ;
  rdfs:subClassOf obo:VT_0002151 .

obo:VT_0010161 a rdfs:Class ;
  rdfs:label "obsolete interleukin-1 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of this soluble factor produced by macrophages/monocytes that activates vascular endothelium and lymphocytes." .

obo:VT_0004194 a rdfs:Class ;
  rdfs:label "kidney pelvis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the flattened, funnel-shaped expansion of the ureter that is formed by convergence of the major calices." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0004370 a rdfs:Class ;
  rdfs:label "ulna length" ;
  rdfs:comment "The distance from point to point along the longest axis of the medial and larger of the two bones of the forearm or lower forelimb; fused with the radius in some species." ;
  rdfs:subClassOf obo:VT_0005108 .

obo:VT_0002779 a rdfs:Class ;
  rdfs:label "secretion by sex gland trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances from any of the organized aggregations of cells that function as secretory or excretory organs and are associated with reproduction." ;
  rdfs:subClassOf obo:VT_0005647 .

obo:VT_0015035 a rdfs:Class ;
  rdfs:label "auditory cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the region of the cerebral cortex that receives the auditory radiation from the medial geniculate body, a thalamic cell group receiving auditory input from the cochlear nuclei in the rhombencephalon and is responsible for processing of auditory (sound) information." ;
  rdfs:subClassOf obo:VT_0000801 .

obo:VT_0001667 a rdfs:Class ;
  rdfs:label "carbohydrate absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in substances composed of carbon, hydrogen, and oxygen according to the general formula Cn(H2O)n; sugars and starches are examples." ;
  rdfs:subClassOf obo:VT_0001666 .

obo:VT_0003641 a rdfs:Class ;
  rdfs:label "lung size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of either or both of the spongy organs of respiration contained within the pleural cavity of the thorax." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0010821 a rdfs:Class ;
  rdfs:label "oviduct mass" ;
  rdfs:comment "The amount of matter in the tube through which the ova pass from the ovary to the uterus (mammals) or to the outside (fish, birds)." ;
  rdfs:subClassOf obo:VT_0003576 .

obo:VT_0005394 a rdfs:Class ;
  rdfs:label "olfactory system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to receive an olfactory stimulus, convert it to a molecular signal, and recognize and characterize the signal, or to the morphology of the structures involved in any of these events." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0003771 a rdfs:Class ;
  rdfs:label "lip shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the fleshy margins of the mouth." ;
  rdfs:subClassOf obo:VT_0003769 .

obo:VT_0010585 a rdfs:Class ;
  rdfs:label "brain molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the brain, one of the two components of the central nervous system and the center of thought and emotion; controls coordination, bodily activities and the interpretation of information from the senses." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0010702 a rdfs:Class ;
  rdfs:label "blood lipoprotein particle size" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lipid-protein complexes involved in the transportation and metabolism of lipids." ;
  rdfs:subClassOf obo:VT_0015078 .

obo:VT_0011217 a rdfs:Class ;
  rdfs:label "mononuclear leukocyte quantity" ;
  rdfs:comment "The proportion or number of mature lymphocytes and monocytes transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules." ;
  rdfs:subClassOf obo:VT_0000217 .

obo:VT_0008747 a rdfs:Class ;
  rdfs:label "T cell anergy trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process contributing to anergy in T cells, a state of functional inactivation which is part of T cell tolerance induction." ;
  rdfs:subClassOf obo:VT_0004918 , obo:VT_0005004 .

obo:VT_0000008 a rdfs:Class ;
  rdfs:label "heart atrium appendage configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the small trabeculated chamber projecting from the atrium proper." ;
  rdfs:subClassOf obo:VT_0000024 .

obo:VT_0000087 a rdfs:Class ;
  rdfs:label "capillary morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small branching blood vessels that connect arterioles and venules." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_0010123 a rdfs:Class ;
  rdfs:label "lacrimal gland cholinergic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers that utilize acetylcholine as a neurotransmitter and transmit impulses to the gland that secretes tears." ;
  rdfs:subClassOf obo:VT_0010062 .

obo:VT_0011370 a rdfs:Class ;
  rdfs:label "methane excretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the elimination by an organism of methane, a colorless, flammable gas formed in the decomposition of organic matter." ;
  rdfs:subClassOf obo:VT_0011369 .

obo:VT_0004211 a rdfs:Class ;
  rdfs:label "sour taste sensitivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to perceive a particular flavor or suggestion of something sour by the chemoreceptors of the gustatory system." ;
  rdfs:subClassOf obo:VT_0001986 .

obo:VT_0010347 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-11,trans-15-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-11 and C-15." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0004918 a rdfs:Class ;
  rdfs:label "negative T cell selection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of elimination of immature T cells which react strongly with self-antigens." ;
  rdfs:subClassOf obo:VT_0004917 .

obo:VT_1000527 a rdfs:Class ;
  rdfs:label "adipose fatty acid cis-9-C16:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an omega-7, monounsaturated fatty acid (C16H30O2) present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005285 .

obo:VT_0011304 a rdfs:Class ;
  rdfs:label "time of ear canal opening" ;
  rdfs:comment "The stage of development when the tube running from the outer ear to the middle ear becomes visibly open." ;
  rdfs:subClassOf obo:VT_0015029 .

obo:VT_0000076 a rdfs:Class ;
  rdfs:label "calvaria morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the upper dome-like portion of the skull." ;
  rdfs:subClassOf obo:VT_0000074 .

obo:VT_0011075 a rdfs:Class ;
  rdfs:label "vagina ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the female reproductive canal located between the uterus and the vulva. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011074 .

obo:VT_0010284 a rdfs:Class ;
  rdfs:label "milk beta-casein amount" ;
  rdfs:comment "The proportion, quantity, or volume of beta-casein in milk." ;
  rdfs:subClassOf obo:VT_0010280 .

obo:VT_0010091 a rdfs:Class ;
  rdfs:label "appendicular skeleton morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bones of the limbs and the shoulder and pelvic girdles." ;
  rdfs:subClassOf obo:VT_0010003 .

obo:VT_0010228 a rdfs:Class ;
  rdfs:label "ileum villi length" ;
  rdfs:comment "The distance from point to point along the longest axis of the finger-like projections of the mucosal cell layer of the ileum." ;
  rdfs:subClassOf obo:VT_0002581 , obo:VT_0010223 .

obo:VT_0006027 a rdfs:Class ;
  rdfs:label "respiratory alveolus development" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the sacs for holding air in the lungs which are formed by the terminal dilation of air passageways." ;
  rdfs:subClassOf obo:VT_0001176 .

obo:VT_0004291 a rdfs:Class ;
  rdfs:label "conductive hearing physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in sound conduction through the middle-ear apparatus, e.g., velocity transfer responses at the umbo or incus level during sound stimulation of the tympanic membrane." ;
  rdfs:subClassOf obo:VT_0002104 .

obo:VT_1000243 a rdfs:Class ;
  rdfs:label "receiving feather pecking trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the receipt of pecking by the other birds." ;
  rdfs:subClassOf obo:VT_0002557 .

obo:VT_0000583 a rdfs:Class ;
  rdfs:label "nail length" ;
  rdfs:comment "The distance from point to point along the longest axis of any of the thin, horny, translucent plates covering the dorsal surface of the distal end of each terminal phalanx of the digits." ;
  rdfs:subClassOf obo:VT_0000579 .

obo:VT_0010798 a rdfs:Class ;
  rdfs:label "spleen molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the organ that functions to filter blood and to store red corpuscles and platelets." ;
  rdfs:subClassOf obo:VT_0000689 .

obo:VT_0002128 a rdfs:Class ;
  rdfs:label "obsolete blood circulation trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the flow of blood within the body.
consider: VT:0000153 or VT:0000182""" .

obo:VT_0002344 a rdfs:Class ;
  rdfs:label "lymph node B cell domain morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph node cortex in which B lymphocytes reside." ;
  rdfs:subClassOf obo:VT_0002343 .

obo:VT_0003723 a rdfs:Class ;
  rdfs:label "long bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the elongated bones of the extremities, consisting of a tubular shaft (diaphysis) and two extremities (epiphyses)." ;
  rdfs:subClassOf obo:VT_0002109 , obo:VT_0002115 .

obo:VT_0003345 a rdfs:Class ;
  rdfs:label "rib quantity" ;
  rdfs:comment "The proportion or number of the elongated, curved bones forming the bony wall of the chest." ;
  rdfs:subClassOf obo:VT_0000150 .

obo:VT_0004400 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell quantity" ;
  rdfs:comment "The proportion or number of the columnar outer hair sensory cells of the organ of Corti." ;
  rdfs:subClassOf obo:VT_0004399 .

obo:VT_0002416 a rdfs:Class ;
  rdfs:label "proerythroblast morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the immature, nucleated erythrocyte precursors that give rise to reticulocytes." ;
  rdfs:subClassOf obo:VT_0010263 .

obo:VT_1000415 a rdfs:Class ;
  rdfs:label "obsolete glycolytic potential" ;
  rdfs:comment "OBSOLETE. The measure of the available glycogen stores in a body tissue or fluid; available glycogen is dependent on glycogen, glucose, glucose-6-phosphate, and lactate levels." .

obo:VT_0002682 a rdfs:Class ;
  rdfs:label "obsolete mature ovarian follicle quantity" ;
  rdfs:comment "OBSOLETE. The proportion or number of fluid-filled, oocyte-containing ovarian structures at their last stage of growth (characterized by the formation of a cavity [antrum] filled with follicular fluid)." .

obo:VT_0010079 a rdfs:Class ;
  rdfs:label "sphenozygomatic suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the junction between the zygomatic bone and greater wing of the sphenoid." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0010717 a rdfs:Class ;
  rdfs:label "response to amphetamine trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of amphetamine exposure." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0000808 a rdfs:Class ;
  rdfs:label "hippocampus development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the deep lying structure of the cerebrum involved with memory storage and spatial navigation." ;
  rdfs:subClassOf obo:VT_0000913 .

obo:VT_0005006 a rdfs:Class ;
  rdfs:label "osteoblast physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in this bone-forming cell, which normally forms an osseous matrix in which it becomes enclosed as an osteocyte." ;
  rdfs:subClassOf obo:VT_0000070 .

obo:VT_0004002 a rdfs:Class ;
  rdfs:label "jejunum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the portion of the small intestine that extends from the duodenum to the ileum." ;
  rdfs:subClassOf obo:VT_0000496 .

obo:VT_0003104 a rdfs:Class ;
  rdfs:label "skull size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bones surrounding the brain and bones of the lower face and jaws." ;
  rdfs:subClassOf obo:VT_0000438 .

obo:VT_0001764 a rdfs:Class ;
  rdfs:label "homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to a state of equilibrium in the body with respect to various functions and to chemical composition of the fluids and tissues." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0002602 a rdfs:Class ;
  rdfs:label "eosinophil quantity" ;
  rdfs:comment "The proportion or number of the immature or mature form 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 and which can be stained by the dye eosin." ;
  rdfs:subClassOf obo:VT_0000334 , obo:VT_0005061 .

obo:VT_0007026 a rdfs:Class ;
  rdfs:label "heart left atrium mass" ;
  rdfs:comment "The amount of matter in the left upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000012 .

obo:VT_0010235 a rdfs:Class ;
  rdfs:label "forestomach morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large fermentation chamber situated anteriorly to the stomach in some species." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0010742 a rdfs:Class ;
  rdfs:label "blood cystatin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an inhibitor of cysteine proteases." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0011246 a rdfs:Class ;
  rdfs:label "large intestine molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the distal portion of the digestive tube that extends from the ileocecal valve to the anus." ;
  rdfs:subClassOf obo:VT_0000489 .

obo:VT_0006174 a rdfs:Class ;
  rdfs:label "isthmic organizer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organizing signaling center that forms at the boundary between the midbrain and hindbrain and plays an essential role in development of the midbrain and anterior hindbrain." ;
  rdfs:subClassOf obo:VT_0000913 .

obo:VT_0000839 a rdfs:Class ;
  rdfs:label "hypothalamus cell quantity" ;
  rdfs:comment "The proportion or number of cells in the ventral part of the diencephalon extending from the region of the optic chiasm to the caudal border of the mammillary bodies and forming the inferior and lateral walls of the third ventricle; this region regulates the autonomic nervous system via hormone production and release." ;
  rdfs:subClassOf obo:VT_0000837 .

obo:VT_0006276 a rdfs:Class ;
  rdfs:label "autonomic nervous system physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the sensory and motor neurons that run between the central nervous system (especially the hypothalamus and medulla oblongata) and various internal organs (heart, lungs, endocrine and exocrine glands), responsible for controlling involuntary bodily functions." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010085 a rdfs:Class ;
  rdfs:label "short lived plasma cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a fully differentiated plasma cell that lives for months, not years." ;
  rdfs:subClassOf obo:VT_0002439 .

obo:VT_0000048 a rdfs:Class ;
  rdfs:label "stria vascularis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the stratified, secretory epithelium which lines the upper part of the cochlear spiral ligament and maintains K+ homeostasis in the endolymph; stria vascularis normally consists of marginal, intermediate, and basal cells: basal and marginal cell tight junctions preclude paracellular diffusion into and out of the intrastrial space while basal and intermediate cells secrete into this space K+ derived from fibrocytes through gap junctions." ;
  rdfs:subClassOf obo:VT_0003169 .

obo:VT_1000401 a rdfs:Class ;
  rdfs:label "muscle androstenone amount" ;
  rdfs:comment "The proportion, quantity, or volume of the testicular steroid androstenone detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0010273 a rdfs:Class ;
  rdfs:label "colostrum growth factor amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of any factors which promote cell proliferation." ;
  rdfs:subClassOf obo:VT_0010269 .

obo:VT_0010042 a rdfs:Class ;
  rdfs:label "sperm morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the male gamete." ;
  rdfs:subClassOf obo:VT_0002208 .

obo:VT_0010108 a rdfs:Class ;
  rdfs:label "hippocampus pyramidal cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the projection neurons in the pyramidal layer of the hippocampus." ;
  rdfs:subClassOf obo:VT_0015046 , obo:VT_0015104 .

obo:VT_1000023 a rdfs:Class ;
  rdfs:label "food conversion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the organism's ability to convert food into body mass." ;
  rdfs:subClassOf obo:VT_0005448 .

obo:VT_0002276 a rdfs:Class ;
  rdfs:label "lung interstitium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the connective tissue located between the respiratory (airway and alveolar) epithelium, the capillary endothelium and pleural mesothelium." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0002324 a rdfs:Class ;
  rdfs:label "blood-air barrier morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the membrane between the capillary blood and alveolar air, comprised of the alveolar epithelium and the capillary epithelium and their adherent basement membranes and epithelial cell cytoplasm." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0010137 a rdfs:Class ;
  rdfs:label "sensory nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the fibers of afferent nerves conveying impulses processed by the central nervous system." ;
  rdfs:subClassOf obo:VT_0010142 .

obo:VT_0000836 a rdfs:Class ;
  rdfs:label "substantia nigra morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the layer of grey substance that separates the posterior parts of the cerebral peduncles (tegmentum mesencephali) from the anterior parts; it normally includes a posterior compact part with many pigmented cells (pars compacta) and an anterior reticular part whose cells contain little pigment (pars reticularis)." ;
  rdfs:subClassOf obo:VT_0000897 , obo:VT_0006007 .

obo:VT_0002729 a rdfs:Class ;
  rdfs:label "inner ear canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the tubular ducts of the inner ear." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0008552 a rdfs:Class ;
  rdfs:label "blood tumor necrosis factor amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a serum glycoprotein produced by activated macrophages and NK cells and involved in initiating local inflammatory responses, particularly by its action on the endothelium of local blood vessels; its actions result in increased vascular permeability and induction of expression of adhesion molecules on the endothelium." ;
  rdfs:subClassOf obo:VT_0005416 , obo:VT_0008752 .

obo:VT_0005201 a rdfs:Class ;
  rdfs:label "retinal pigment epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the epithelial layer of the retina composed of cells containing pigment granules." ;
  rdfs:subClassOf obo:VT_0003727 .

obo:VT_0008710 a rdfs:Class ;
  rdfs:label "interleukin-9 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a multifunctional cytokine secreted primarily by activated TH2 cells that may play a role as a regulator of allergic inflammation, and has been shown to enhance the growth and differentiation of mast cells, and can act on a variety of other immune cells." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0003705 a rdfs:Class ;
  rdfs:label "hypodermis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the irregular layer of adipose and connective tissue, stroma, or membrane immediately deep to the skin and superficial to the deep fascia; usually consists primarily of either just loose connective tissue, or a fatty layer that may also include a muscle layer, and/or a fibrous layer; may also occur as a membranous layer only, being nearly devoid of fat." ;
  rdfs:subClassOf obo:VT_0010007 .

obo:VT_0001008 a rdfs:Class ;
  rdfs:label "sympathetic ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the groups of neuronal cell bodies of the autonomic nervous system." ;
  rdfs:subClassOf obo:VT_0001007 .

obo:VT_0003861 a rdfs:Class ;
  rdfs:label "nervous system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the components of the system responsible for receiving and processing information about an organism's environment and controlling behavior." ;
  rdfs:subClassOf obo:VT_1000781 .

obo:VT_0010854 a rdfs:Class ;
  rdfs:label "forebrain 5-hydroxyindoleacetic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of indole-3-acetic acid substituted by a hydroxy group at C-5." ;
  rdfs:subClassOf obo:VT_0010836 , obo:VT_0010874 .

obo:VT_0010439 a rdfs:Class ;
  rdfs:label "response to viral infection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter immune processes or function as a result of invasion and multiplication of a virus (pathogen consisting of nucleic acid inside a protein shell, which can grow/reproduce only after infecting a host cell) in the tissues, or of exposure to components of or toxins produced by a virus." ;
  rdfs:subClassOf obo:VT_0010434 .

obo:VT_0001722 a rdfs:Class ;
  rdfs:label "yolk sac color" ;
  rdfs:comment "The visually perceived hue of the highly vascular layer surrounding the yolk of an embryo; it contributes to hematopoietic circulation in mammals." ;
  rdfs:subClassOf obo:VT_0001718 .

obo:VT_0011295 a rdfs:Class ;
  rdfs:label "dorsal striatum ribonucleic acid amount" ;
  rdfs:subClassOf obo:VT_0011159 , obo:VT_0011294 .

obo:VT_0000983 a rdfs:Class ;
  rdfs:label "Meissner's corpuscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the numerous oval bodies found in the dermal papillae of thick skin; believed to be mechanoreceptors for tactile sensation." ;
  rdfs:subClassOf obo:VT_0000982 .

obo:VT_0000031 a rdfs:Class ;
  rdfs:label "cochlea morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the spiral-shaped bony canal in the inner ear containing the hair cells that transduce sound." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0001337 a rdfs:Class ;
  rdfs:label "eye moisture amount" ;
  rdfs:comment "The proportion, quantity, or volume of moisture in the eye." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_1000369 a rdfs:Class ;
  rdfs:label "femur size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_0000559 .

obo:VT_0008473 a rdfs:Class ;
  rdfs:label "spleen follicular dendritic cell network morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the enmeshed group of antigen presenting cells with extensive dendritic processes in the spleen B cell follicle that present antigen to B cells during an immune response." ;
  rdfs:subClassOf obo:VT_0008470 .

obo:VT_0009056 a rdfs:Class ;
  rdfs:label "interleukin-21 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a pleiotropic cytokine that regulates immunoglobulin production, plasma cell and Th17 T cell differentiation, CD8+ T cell expansion, and inhibits antigen presentation by dendritic cells." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0004226 a rdfs:Class ;
  rdfs:label "canal of Schlemm size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the vascular structure encircling the anterior chamber of the eye, through which the aqueous humor is returned to the blood circulation." ;
  rdfs:subClassOf obo:VT_0005204 .

obo:VT_0003126 a rdfs:Class ;
  rdfs:label "vulva morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the external genitalia of the female." ;
  rdfs:subClassOf obo:VT_0001119 .

obo:VT_0010731 a rdfs:Class ;
  rdfs:label "gait trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the pattern of movement of the limbs, characterized by elements of progression, stability, speed and length over the ground." ;
  rdfs:subClassOf obo:VT_0010730 .

obo:VT_0010918 a rdfs:Class ;
  rdfs:label "liver bile acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in the liver of any member of a group of hydroxy-5beta-cholanic acids occurring in bile, where they are present as the sodium salts of their amides with glycine or taurine." ;
  rdfs:subClassOf obo:VT_0010584 , obo:VT_0010917 .

obo:VT_0001027 a rdfs:Class ;
  rdfs:label "obsolete adrenergic innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers of the autonomic nervous system that use norepinephrine as their neurotransmitter to a target tissue or cell.
consider: VT:0010038, VT:0010039""" .

obo:VT_0000864 a rdfs:Class ;
  rdfs:label "cerebellum vermis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the narrow medial zone between the two hemispheres of the cerebellum that is delimited by two longitudinal furrows; it may be continuous with the cerebellar hemispheres in some areas of the cerebellum, e.g., dorsally, or separated by deeper fissures in others (e.g., ventrally); it receives inputs from the spinocerebellar tracts which carry to the vermis information on the position and balance of the torso, and it sends projections to the fastigial nucleus of the cerebellum, which then sends output to the vestibular nuclei." ;
  rdfs:subClassOf obo:VT_0004097 .

obo:VT_0000847 a rdfs:Class ;
  rdfs:label "metencephalon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anterior part of the rhombencephalon." ;
  rdfs:subClassOf obo:VT_0000841 .

obo:VT_0003085 a rdfs:Class ;
  rdfs:label "egg cylinder morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the transient cup-like structure of the epiblast that consists of a single layer of embryonic cells." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0000071 a rdfs:Class ;
  rdfs:label "axial skeleton cell quantity" ;
  rdfs:comment "The proportion or number of cells in the craniofacial, vertebral, rib, or sternal bones." ;
  rdfs:subClassOf obo:VT_0002114 .

obo:VT_0010578 a rdfs:Class ;
  rdfs:label "pituitary gland integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the compound gland suspended from the base of the hypothalamus, which secretes somatotropins, prolactin, TSH (thyroid-stimulating hormone), gonadotropins, adrenal corticotropin, and other related peptides." ;
  rdfs:subClassOf obo:VT_0000633 .

obo:VT_0001569 a rdfs:Class ;
  rdfs:label "blood bilirubin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this yellow heme breakdown product." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0005637 a rdfs:Class ;
  rdfs:label "iron homeostasis trait" ;
  rdfs:comment "Any measurable characteristic related to the state of equilibrium in the body with respect to this metallic element that normally occurs in the heme of hemoglobin, myoglobin, transferrin, ferritin, and iron-containing porphyrins; it is an essential component of enzymes such as catalase, peroxidase, and various cytochromes." ;
  rdfs:subClassOf obo:VT_0005636 .

obo:VT_0011176 a rdfs:Class ;
  rdfs:label "artery ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in any of the blood vessels that carry blood away from the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0015090 .

obo:VT_0010031 a rdfs:Class ;
  rdfs:label "immune serum protein secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of circulating proteins involved in the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0001790 .

obo:VT_0000812 a rdfs:Class ;
  rdfs:label "dentate gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one of two interlocking gyri of the hippocampus that contains granule cells, which project to the pyramidal cells and interneurons of the CA3 region of the ammon gyrus." ;
  rdfs:subClassOf obo:VT_0000807 .

obo:VT_0004093 a rdfs:Class ;
  rdfs:label "Z line configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the cross-striation bisecting the I band of striated muscle myofibrils and serving as the anchoring point of actin filaments at either end of the sarcomere." ;
  rdfs:subClassOf obo:VT_0004091 .

obo:VT_0011148 a rdfs:Class ;
  rdfs:label "interleukin-25 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of interleukin-25, a member of the IL-17 cytokine subfamily and a pro-inflammatory cytokine favoring the Th2-type immune response." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0000471 a rdfs:Class ;
  rdfs:label "stomach epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the epithelial layer of the stomach." ;
  rdfs:subClassOf obo:VT_0000470 .

obo:VT_0010018 a rdfs:Class ;
  rdfs:label "mammary gland symmetry" ;
  rdfs:comment "Correspondence in size, shape, and relative position of milk-producing glands in female mammals on opposite sides of a dividing line or plane or about a center or axis." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0010426 a rdfs:Class ;
  rdfs:label "mammary fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the milk-secreting gland that lies within the breast." ;
  rdfs:subClassOf obo:VT_0015003 .

obo:VT_1000777 a rdfs:Class ;
  rdfs:label "urinary system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the organs involved in the production or excretion of urine or the urine produced." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0000042 a rdfs:Class ;
  rdfs:label "organ of Corti morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the highly specialized epithelium in the floor of the ductus cochlearis; also referred to a spiral organ (organum spirale), or acoustic papilla." ;
  rdfs:subClassOf obo:VT_0003169 .

obo:VT_0005503 a rdfs:Class ;
  rdfs:label "tendon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the fibrous bands or cords of connective tissue at the ends of muscle fibers that attach muscles to bones and other structures." ;
  rdfs:subClassOf obo:VT_0001248 , obo:VT_0002108 .

obo:VT_0010126 a rdfs:Class ;
  rdfs:label "sublingual salivary gland cholinergic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers that utilitze acetylcholine as a neurotransmitter and transmit impulses to the exocrine gland on the floor of the mouth that secretes saliva." ;
  rdfs:subClassOf obo:VT_0010062 .

obo:VT_0005462 a rdfs:Class ;
  rdfs:label "mast cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of a cell that is found in almost all tissues, containing numerous basophilic granules and capable of releasing large amounts of histamine and heparin upon activation." ;
  rdfs:subClassOf obo:VT_0001601 .

obo:VT_0010843 a rdfs:Class ;
  rdfs:label "hypothalamus dihydroxyphenylacetic acid (DOPAC) amount" ;
  rdfs:comment "The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010834 , obo:VT_0010872 .

obo:VT_0000826 a rdfs:Class ;
  rdfs:label "third ventricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the narrow cleft inferior to the corpus callosum, within the diencephalon, between the paired thalami; its floor is formed by the hypothalamus, its anterior wall by the lamina terminalis, and its roof by ependyma; it communicates with the fourth ventricle by the cerebral aqueduct, and with the lateral ventricles by the interventricular foramina." ;
  rdfs:subClassOf obo:VT_0000822 , obo:VT_0000830 .

obo:VT_0010024 a rdfs:Class ;
  rdfs:label "hindlimb length" ;
  rdfs:comment "The distance from point to point along the longest axis of the posterior/inferior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0000556 .

obo:VT_1000607 a rdfs:Class ;
  rdfs:label "skeletal muscle myosin heavy chain type IIa amount" ;
  rdfs:comment "The proportion, quantity, or volume of the type IIa isoform, found in greater amounts in fast fibers, of the most abundant protein in skeletal muscle." ;
  rdfs:subClassOf obo:VT_1000746 .

obo:VT_0002910 a rdfs:Class ;
  rdfs:label "excitatory postsynaptic current" ;
  rdfs:comment "The size or duration of currents detected in postsynaptic cells when an excitatory impulse arrives at the synapse causing depolarization." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0010291 a rdfs:Class ;
  rdfs:label "milk potassium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of potassium, an alkaline metallic element." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0010249 a rdfs:Class ;
  rdfs:label "blood cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in any of the cells found in the blood." ;
  rdfs:subClassOf obo:VT_0010254 .

obo:VT_0004353 a rdfs:Class ;
  rdfs:label "deltoid tuberosity morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the rough elevation at the middle of the lateral side of the shaft of the humerus to which the deltoid muscle attaches." ;
  rdfs:subClassOf obo:VT_0005296 .

obo:VT_0015024 a rdfs:Class ;
  rdfs:label "allogrooming behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the cleaning, parasite removal, surface covering adjustment, addition of conditioners to body surface, or other hygienic activities by one animal on another of the same species." ;
  rdfs:subClassOf obo:VT_0001440 , obo:VT_0002557 .

obo:VT_0004393 a rdfs:Class ;
  rdfs:label "cochlear inner hair cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory cells of the organ of Corti which are in synaptic contact with sensory as well as efferent fibers of the auditory nerve; there is a single row of flask-shaped inner hair cells tightly surrounded by supporting interphalangeal cells; the apical end of each cell is anchored to the cuticular plate and about 100 stereocilia arranged in a more or less linear (or shallow) U-shaped pattern extend from the cell's surface through the cuticular plate into the endolymphic space inferior to the tectorial membrane." ;
  rdfs:subClassOf obo:VT_0002622 .

obo:VT_0001964 a rdfs:Class ;
  rdfs:label "auditory threshold" ;
  rdfs:comment "The point at which one may first detect auditory signals at given frequencies." ;
  rdfs:subClassOf obo:VT_0002104 .

obo:VT_0008344 a rdfs:Class ;
  rdfs:label "mature gamma-delta T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a mature T cell expressing a gamma-delta T cell receptor complex." ;
  rdfs:subClassOf obo:VT_0008343 .

obo:VT_0010720 a rdfs:Class ;
  rdfs:label "response to morphine trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of morphine exposure." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0003357 a rdfs:Class ;
  rdfs:label "granulosa cell differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which a relatively unspecialized cell acquires the specialized features of a granulosa cell, a supporting cell for the developing female gamete in the ovary of mammals." ;
  rdfs:subClassOf obo:VT_0010043 .

obo:VT_0000061 a rdfs:Class ;
  rdfs:label "cardiomyocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the striated muscle cells comprising the myocardium; depending on the species, cells may be mono-, bi-, or multinucleated." ;
  rdfs:subClassOf obo:VT_0004087 , obo:VT_0005329 .

obo:VT_0003652 a rdfs:Class ;
  rdfs:label "skin elasticity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the membranous protective covering of the body to recover size and shape after deformation in any way." ;
  rdfs:subClassOf obo:VT_0005501 .

obo:VT_0002367 a rdfs:Class ;
  rdfs:label "thymus lobule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the basic structural unit of the thymus, the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0000703 .

obo:VT_0006084 a rdfs:Class ;
  rdfs:label "blood phospholipid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the fat derivatives in which one fatty acid has been replaced by a phosphate group." ;
  rdfs:subClassOf obo:VT_0003949 .

obo:VT_0011064 a rdfs:Class ;
  rdfs:label "temporomandibular joint ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the temporomandibular joint, the synovial joint of the jaw that connects the mandible to the temporal bone. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011063 .

obo:VT_0010735 a rdfs:Class ;
  rdfs:label "urination behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism with regard to the process in which parasympathetic nerves stimulate the bladder wall muscle to contract and expel urine from the body." ;
  rdfs:subClassOf obo:VT_0010461 .

obo:VT_0005223 a rdfs:Class ;
  rdfs:label "rostral-caudal axis somite development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the somites along the axis that runs from the rostral to the caudal region of the body." ;
  rdfs:subClassOf obo:VT_0001688 , obo:VT_0005221 .

obo:VT_0005028 a rdfs:Class ;
  rdfs:label "trophectoderm morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outermost layer of cells in the blastodermic vesicle, which will develop into the trophoblast layer and then contact the endometrium and take part in establishing the mammalian embryo's means of nutrition." ;
  rdfs:subClassOf obo:VT_0001712 , obo:VT_0002085 .

obo:VT_0007009 a rdfs:Class ;
  rdfs:label "interatrial septum configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the wall separating the upper chambers of the heart." ;
  rdfs:subClassOf obo:VT_0007081 .

obo:VT_0000026 a rdfs:Class ;
  rdfs:label "inner ear morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the labyrinth, including the semicircular canals, vestibule and cochlea." ;
  rdfs:subClassOf obo:VT_0002102 .

obo:VT_0002135 a rdfs:Class ;
  rdfs:label "kidney morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0000516 .

obo:VT_0006258 a rdfs:Class ;
  rdfs:label "circumvallate papillae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the large papillae, which have multiple taste buds in the trough surrounding the papillae, located near the base and on the dorsal side of the tongue." ;
  rdfs:subClassOf obo:VT_0006256 .

obo:VT_0001451 a rdfs:Class ;
  rdfs:label "vestibular hair bundle shaft connector morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure or pattern of the links that connect the shafts of neighboring stereocilia in vestibular hair bundles; each shaft connector is composed of a ruthenium red-reactive, electron-dense particle that is connected to the plasma membrane by several fine strands of variable length." ;
  rdfs:subClassOf obo:VT_0001450 .

obo:VT_0003734 a rdfs:Class ;
  rdfs:label "retinal inner plexiform layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the retinal cell layer where bipolar and amacrine cell axons synapse with ganglion cell dendrites." ;
  rdfs:subClassOf obo:VT_0006069 .

obo:VT_1000687 a rdfs:Class ;
  rdfs:label "forelimb mass" ;
  rdfs:comment "The amount of matter in the anterior/superior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0000550 .

obo:VT_0004492 a rdfs:Class ;
  rdfs:label "inner hair cell stereociliary bundle orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of inner hair cell (IHC) stereociliary bundles in relation to the hair cells." ;
  rdfs:subClassOf obo:VT_0000892 , obo:VT_0001180 .

obo:VT_0011239 a rdfs:Class ;
  rdfs:label "skeletal muscle molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in any of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0000759 , obo:VT_0010021 .

obo:VT_0002208 a rdfs:Class ;
  rdfs:label "germ cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the germ cell, that is, any of the reproductive (generative) cells of a multicellular organism, whether they are undifferentiated or fully differentiated." ;
  rdfs:subClassOf obo:VT_0002160 .

obo:VT_0011315 a rdfs:Class ;
  rdfs:label "cerebral neural tissue ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the portion of tissue in the cerebrum which consists of neurons and glial cells, and may also contain parts of the vasculature. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011250 .

obo:VT_0011014 a rdfs:Class ;
  rdfs:label "muscle sulfur amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this nonmetallic element with atomic symbol S and atomic number 16." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0005104 a rdfs:Class ;
  rdfs:label "tarsus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the bones of the lower/hind limb between the tibia and fibula and the metatarsus." ;
  rdfs:subClassOf obo:VT_0000556 , obo:VT_0002115 .

obo:VT_0000414 a rdfs:Class ;
  rdfs:label "hair retention trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to maintain the fine, keratinized filamentous growths arising from the epidermis of mammals without noticeable loss." ;
  rdfs:subClassOf obo:VT_4000007 .

obo:VT_0010832 a rdfs:Class ;
  rdfs:label "hypothalamus epinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0010828 , obo:VT_0010871 .

obo:VT_0002221 a rdfs:Class ;
  rdfs:label "immune system organ size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organs associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0002722 .

obo:VT_0010609 a rdfs:Class ;
  rdfs:label "areola morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the circular, pigmented area of the skin surrounding the mammalian nipple." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0008719 a rdfs:Class ;
  rdfs:label "neutrophil recruitment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the diffusion or accumulation of neutrophils (granular leukocytes that have a three- to five-lobed nucleus and cytoplasm that contains inconspicuous granules stainable by neutral dyes) in tissues or cells in response to a wide variety of substances released at the sites of inflammatory reactions." ;
  rdfs:subClassOf obo:VT_0002463 .

obo:VT_0010713 a rdfs:Class ;
  rdfs:label "milk selenium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this metallic element chemically similar to sulfur." ;
  rdfs:subClassOf obo:VT_0001775 , obo:VT_0010288 .

obo:VT_0011243 a rdfs:Class ;
  rdfs:label "basilar artery ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in a major artery that supplies the hindbrain and runs along the ventral keel of the hindbrain. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011176 .

obo:VT_0002484 a rdfs:Class ;
  rdfs:label "obsolete C-reactive protein physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of this plasma protein that normally circulates in increased amounts during inflammation or after tissue damage." .

obo:VT_0010529 a rdfs:Class ;
  rdfs:label "contextual fear conditioning behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the actions or reactions of an organism pertaining to the ability to learn and remember an association between an aversive experience (the unconditioned stimulus (US), usually a shock) and the neutral, unchanging environment (the conditioned stimulus (CS), or the environmental context in this case)." ;
  rdfs:subClassOf obo:VT_0010527 , obo:VT_0010715 .

obo:VT_0010112 a rdfs:Class ;
  rdfs:label "intercalated disc morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the electron-dense junctional complex, at the end-to-end contacts of cardiac muscle cells, that contains three types of membrane junctions (fascia adherens, gap junctions and occasionally desmosomes)." ;
  rdfs:subClassOf obo:VT_0005329 .

obo:VT_0004114 a rdfs:Class ;
  rdfs:label "atrioventricular node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small nodular mass of specialized muscle fibers located in the interatrial septum near the opening of the coronary sinus; this node gives rise to the electrical connection between the atria and ventricles and responds to the sinoatrial node." ;
  rdfs:subClassOf obo:VT_0000019 , obo:VT_0004123 .

obo:VT_0011198 a rdfs:Class ;
  rdfs:label "milk immunoglobulin M amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this immunoglobulin formed during the early part of the immune response that is the most efficient antibody in stimulating complement activity." ;
  rdfs:subClassOf obo:VT_0011193 .

obo:VT_0002350 a rdfs:Class ;
  rdfs:label "efferent lymphatic vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymphatic tube exiting the lymph node." ;
  rdfs:subClassOf obo:VT_0001879 , obo:VT_0002339 .

obo:VT_0002851 a rdfs:Class ;
  rdfs:label "blood sulfate amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this salt or ester of sulfuric acid." ;
  rdfs:subClassOf obo:VT_0000068 .

obo:VT_0010679 a rdfs:Class ;
  rdfs:label "tarsometatarsus diameter" ;
  rdfs:comment "The distance across the long bone in the lower leg of birds, formed by fusion of tarsal and metatarsal structures." ;
  rdfs:subClassOf obo:VT_0010671 .

obo:VT_0008174 a rdfs:Class ;
  rdfs:label "follicular B cell quantity" ;
  rdfs:comment "The proportion or number of resting mature B cells with distinct phenotypic characteristics (CD23-positive, CD21-positive) found typically in the B cell follicle region of the spleen and lymph nodes." ;
  rdfs:subClassOf obo:VT_0008172 , obo:VT_0008211 .

obo:VT_0010387 a rdfs:Class ;
  rdfs:label "milk phospholipid amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the fat derivatives in which one fatty acid has been replaced by a phosphate group." ;
  rdfs:subClassOf obo:VT_0010261 .

obo:VT_0000479 a rdfs:Class ;
  rdfs:label "intestinal cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells comprising the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0000477 .

obo:VT_0010469 a rdfs:Class ;
  rdfs:label "pancreas molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream." ;
  rdfs:subClassOf obo:VT_0001944 .

obo:VT_0005158 a rdfs:Class ;
  rdfs:label "ovary cell quantity" ;
  rdfs:comment "The proportion or number of cells in the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0001126 .

obo:VT_0010159 a rdfs:Class ;
  rdfs:label "obsolete interleukin physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of any of the cytokines produced by leukocytes." .

obo:VT_0010105 a rdfs:Class ;
  rdfs:label "hindlimb long bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the elongated bones of the posterior/inferior extremities, consisting of a tubular shaft (diaphysis) and two extremities (epiphyses)." ;
  rdfs:subClassOf obo:VT_0000556 , obo:VT_0003723 .

obo:VT_2000021 a rdfs:Class ;
  rdfs:label "heart muscle contractile force" ;
  rdfs:comment "The force generated by contraction of the striated, involuntary muscle comprising the myocardium." ;
  rdfs:subClassOf obo:VT_2000018 .

obo:VT_0010980 a rdfs:Class ;
  rdfs:label "blood L-lysine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-isomer of lysine, a diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_1000135 a rdfs:Class ;
  rdfs:label "subcutaneous adipose thickness" ;
  rdfs:comment "The distance between the surfaces of the fat-storing layer directly beneath the skin." ;
  rdfs:subClassOf obo:VT_0004127 , obo:VT_0010045 , obo:VT_1000126 .

obo:VT_0010448 a rdfs:Class ;
  rdfs:label "forelimb muscle mass" ;
  rdfs:comment "The amount of matter in the muscle tissue of the anterior/superior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0010647 , obo:VT_1000687 .

obo:VT_1000361 a rdfs:Class ;
  rdfs:label "cannon bone circumference" ;
  rdfs:comment "The distance around the metacarpal or metatarsal bone(s) in some hoofed mammals, extending between the knee or hock and the fetlock." ;
  rdfs:subClassOf obo:VT_0002115 .

obo:VT_0000815 a rdfs:Class ;
  rdfs:label "Ammon gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one or both of the two interlocking gyri of the hippocampus; a circonvolution of rhinencephalon, the grey substance of which is rich in big pyramidal neuronal cells." ;
  rdfs:subClassOf obo:VT_0000807 .

obo:VT_0001156 a rdfs:Class ;
  rdfs:label "spermatogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of the male gametes." ;
  rdfs:subClassOf obo:VT_0001929 .

obo:VT_0001680 a rdfs:Class ;
  rdfs:label "mesoderm development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the middle of the three embryonic germ layers during its formation and differentiation during gastrulation." ;
  rdfs:subClassOf obo:VT_0001674 .

obo:VT_0010197 a rdfs:Class ;
  rdfs:label "duodenum length" ;
  rdfs:comment "The distance from point to point along the longest axis of the first division of the small intestine that extends from the pyloris to the junction with the jejunum." ;
  rdfs:subClassOf obo:VT_0003271 , obo:VT_1000421 .

obo:VT_0003760 a rdfs:Class ;
  rdfs:label "palate length" ;
  rdfs:comment "The distance from point to point along the longest axis of the roof of the oral cavity." ;
  rdfs:subClassOf obo:VT_0003755 .

obo:VT_0004165 a rdfs:Class ;
  rdfs:label "lateral geniculate nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of neurons that serve as the primary processor of visual information received from the retina via the optic tract and send processed information to the visual cortex of the occipital lobe." ;
  rdfs:subClassOf obo:VT_0000832 .

obo:VT_0015094 a rdfs:Class ;
  rdfs:label "equilibrioception system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to receive an orientational stimulus, convert it to a molecular signal, and recognize and characterize the signal, or the morphology of the structures involved in any of these events." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0005248 a rdfs:Class ;
  rdfs:label "Harderian gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the gland located behind the eyeball in some species that excretes fluid that facilitates movement of the nictitating membrane." ;
  rdfs:subClassOf obo:VT_0000647 .

obo:VT_0001754 a rdfs:Class ;
  rdfs:label "blood corticotropin-releasing hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume of CRH in whole blood, serum, or plasma; CRH is normally released by the hypothalamus and stimulates the release of corticotropin by the anterior pituitary gland." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0008671 a rdfs:Class ;
  rdfs:label "interleukin-13 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine synthesized by T-cells that produces proliferation, immunoglobulin isotype switching, and immunoglobulin production by immature B-cells, and appears to play a role in regulating inflammatory and immune responses." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0010188 a rdfs:Class ;
  rdfs:label "Meissner's corpuscle nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers to any part of the numerous oval bodies found in the dermal papillae of thick skin and which are believed to be mechanoreceptors for tactile sensation." ;
  rdfs:subClassOf obo:VT_0000982 .

obo:VT_1000062 a rdfs:Class ;
  rdfs:label "chest circumference" ;
  rdfs:comment "The distance around an organism's thorax measured just posterior to the forelimbs." ;
  rdfs:subClassOf obo:VT_0004134 , obo:VT_0011361 .

obo:VT_0008185 a rdfs:Class ;
  rdfs:label "naive B cell quantity" ;
  rdfs:comment "The proportion or number of mature B cells which have not yet been activated by antigen." ;
  rdfs:subClassOf obo:VT_0008184 , obo:VT_0008211 .

obo:VT_0002191 a rdfs:Class ;
  rdfs:label "artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the blood vessels that carry blood away from the heart." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_0001664 a rdfs:Class ;
  rdfs:label "digestion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the mechanical, chemical, and enzymatic conversion of ingested food into material suitable for assimilation for synthesis of tissues or liberation of energy." ;
  rdfs:subClassOf obo:VT_0001663 .

obo:VT_0000516 a rdfs:Class ;
  rdfs:label "urinary system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the organs involved in the production or excretion of urine." ;
  rdfs:subClassOf obo:VT_1000777 .

obo:VT_0010057 a rdfs:Class ;
  rdfs:label "muscle fatty acid cis-9,cis-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an omega-6 unsaturated fatty acid (C18H32O2), with two carbon-carbon double bonds, present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010049 .

obo:VT_0015051 a rdfs:Class ;
  rdfs:label "prevertebral ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sympathetic ganglia located in front of the vertebral column and associated with the major branches of the abdominal aorta; these include the celiac, aorticorenal, superior and inferior mesenteric ganglia." ;
  rdfs:subClassOf obo:VT_0001008 .

obo:VT_0005476 a rdfs:Class ;
  rdfs:label "blood triiodothyronine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this hormone synthesized and secreted by the thyroid; normally, this is the main thyroid hormone used by the tissues." ;
  rdfs:subClassOf obo:VT_0003351 .

obo:VT_0010973 a rdfs:Class ;
  rdfs:label "blood L-proline amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of pyrrolidine in which the pro-S hydrogen at position 2 is substituted by a carboxylic acid group. L-Proline is the only one of the twenty DNA-encoded amino acids which has a secondary amino group alpha to the carboxyl group." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0003005 a rdfs:Class ;
  rdfs:label "hippocampus fimbria morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the flattened band of efferent fibers arising from the subiculum and medial border of the hippocampus, which then thickens to form the fornix and fibers of the hippocampal commissure." ;
  rdfs:subClassOf obo:VT_0000807 .

obo:VT_0002758 a rdfs:Class ;
  rdfs:label "tail length" ;
  rdfs:comment "The distance from point to point along the longest axis of the appendage at the caudal end of the vertebral column." ;
  rdfs:subClassOf obo:VT_0003456 .

obo:VT_0000385 a rdfs:Class ;
  rdfs:label "hair follicle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the tubular invaginations of the epidermis from which the hair shaft develops." ;
  rdfs:subClassOf obo:VT_0002076 .

obo:VT_0010929 a rdfs:Class ;
  rdfs:label "arteriole morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the blood vessels that are the smallest arterial vessel located between the muscular arteries and the capillaries." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_0010396 a rdfs:Class ;
  rdfs:label "milk stomatin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of stomatin, an integral membrane protein." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0001038 a rdfs:Class ;
  rdfs:label "cholinergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that utilize acetylcholine as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0011278 a rdfs:Class ;
  rdfs:label "soleus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the superficial flat broad muscle of the calf that is responsible for plantar flexion of the foot. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011059 , obo:VT_0011277 .

obo:VT_0009340 a rdfs:Class ;
  rdfs:label "splenocyte apoptosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which spleen cells undergo programmed cell death." ;
  rdfs:subClassOf obo:VT_0009333 .

obo:VT_0003905 a rdfs:Class ;
  rdfs:label "aorta elastin amount" ;
  rdfs:comment "The proportion, quantity, or volume of elastin in the aorta." ;
  rdfs:subClassOf obo:VT_0007048 .

obo:VT_0010637 a rdfs:Class ;
  rdfs:label "energy metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involved in the production and utilization of various forms of energy." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0000053 a rdfs:Class ;
  rdfs:label "milk total casein amount" ;
  rdfs:comment "The total proportion, quantity, or volume in milk of all fractions of casein, which is the predominant phosphoprotein in milk." ;
  rdfs:subClassOf obo:VT_0010280 .

obo:VT_0004389 a rdfs:Class ;
  rdfs:label "respiratory bronchiole morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the smallest bronchioles, which connect the terminal bronchioles to alveolar ducts and have alveoli rising from their walls." ;
  rdfs:subClassOf obo:VT_0002267 .

obo:VT_0011347 a rdfs:Class ;
  rdfs:label "skin temperature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the level of heat on the external surface of the skin of an organism." ;
  rdfs:subClassOf obo:VT_0005535 .

obo:VT_0001082 a rdfs:Class ;
  rdfs:label "geniculate ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of sensory neuron cell bodies associated with the facial nerve (seventh cranial nerve)." ;
  rdfs:subClassOf obo:VT_0000960 , obo:VT_0001081 .

obo:VT_0003096 a rdfs:Class ;
  rdfs:label "cornea light-scattering trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the transmission of light through the cornea." ;
  rdfs:subClassOf obo:VT_0005253 .

obo:VT_0011098 a rdfs:Class ;
  rdfs:label "cornea molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the transparent anterior portion of the fibrous coat of the eye that serves as the chief refractory structure." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0003424 a rdfs:Class ;
  rdfs:label "neuronal precursor differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which relatively unspecialized cells acquire the specialized features of neurons." ;
  rdfs:subClassOf obo:VT_0006008 .

obo:VT_0003056 a rdfs:Class ;
  rdfs:label "hyoid bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the U-shaped bone lying between the mandible and the larynx that supports the tongue muscles." ;
  rdfs:subClassOf obo:VT_0002116 .

obo:VT_0010829 a rdfs:Class ;
  rdfs:label "cervical spinal cord epinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in a spinal cord segment adjacent to a cervical region of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0010577 , obo:VT_0010828 .

obo:VT_0003110 a rdfs:Class ;
  rdfs:label "processus brevis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the part of the malleus that contacts the upper part of the tympanic membrane where the tympanic cavity makes a deep pocket (epitympanic pocket) surrounding this cartilaginous nodule." ;
  rdfs:subClassOf obo:VT_0000029 .

obo:VT_0000482 a rdfs:Class ;
  rdfs:label "fibula length" ;
  rdfs:comment "The distance from point to point along the longest axis of the lateral and smaller bone of the lower/hind limb." ;
  rdfs:subClassOf obo:VT_0002187 .

obo:VT_0001747 a rdfs:Class ;
  rdfs:label "adrenocorticotropin secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of this pituitary hormone from the pituitary gland that stimulates the secretion of adrenal cortical steroids and induces growth of the adrenal cortex." ;
  rdfs:subClassOf obo:VT_0001746 .

obo:VT_0004184 a rdfs:Class ;
  rdfs:label "baroreceptor physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the functions of or processes in the sensory nerve endings found in the wall of the atria of the heart, vena cava, aortic arch and carotid sinus that are sensitive to changes in blood pressure." ;
  rdfs:subClassOf obo:VT_0004183 .

obo:VT_0015056 a rdfs:Class ;
  rdfs:label "cloaca respiration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the movement of gases into and out of the posterior opening that serves as the only such opening for the intestinal, reproductive and urinary tracts." ;
  rdfs:subClassOf obo:VT_0015068 .

obo:VT_0000037 a rdfs:Class ;
  rdfs:label "lateral semicircular canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the lateral long bony tube of the labyrinth that is involved in the sense of balance." ;
  rdfs:subClassOf obo:VT_0002428 .

obo:VT_0005431 a rdfs:Class ;
  rdfs:label "oocyte quantity" ;
  rdfs:comment "The proportion or number of female germ cells that have entered meiosis." ;
  rdfs:subClassOf obo:VT_0001125 , obo:VT_0002209 .

obo:VT_1000736 a rdfs:Class ;
  rdfs:label "obsolete temperament trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the general attitude or characteristic reactions of an organism exhibited toward another organism.
consider: VT:0010452""" .

obo:VT_0010563 a rdfs:Class ;
  rdfs:label "hindlimb integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the posterior/inferior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0000556 .

obo:VT_0002641 a rdfs:Class ;
  rdfs:label "erythrocyte shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the cells in the blood that carry oxygen, red blood cells." ;
  rdfs:subClassOf obo:VT_0002447 .

obo:VT_0001016 a rdfs:Class ;
  rdfs:label "middle cervical ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small ganglion located at the level of the cricoid cartilage of the laryngeal wall." ;
  rdfs:subClassOf obo:VT_0015050 .

obo:VT_0010257 a rdfs:Class ;
  rdfs:label "colostrum immunoglobulin amount" ;
  rdfs:comment "The proportion, quantity, or volume of proteins that function as a primary mechanism for protection against disease present in the first secretion of the mammary gland before milk production." ;
  rdfs:subClassOf obo:VT_0011210 .

obo:VT_0010376 a rdfs:Class ;
  rdfs:label "milk soluble calcium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of calcium not linked to casein micelles; may be in an associated form (with citrate, inorganic phosphate, or chloride) or a free/ionic form." ;
  rdfs:subClassOf obo:VT_0010290 .

obo:VT_0003167 a rdfs:Class ;
  rdfs:label "scala tympani morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the division of the spiral canal of the cochlea lying on the basal side of the spiral lamina." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0004338 a rdfs:Class ;
  rdfs:label "clavicle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of one or both of the doubly curved long bones that form part of the shoulder girdle and articulate with the sternum and the scapula." ;
  rdfs:subClassOf obo:VT_0005298 .

obo:VT_0011053 a rdfs:Class ;
  rdfs:label "anterior cruciate ligament ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the anterior cruciate ligament, a major stabilizing ligament in the knee that attaches to the surfaces of the femur and tibia. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011052 .

obo:VT_0001675 a rdfs:Class ;
  rdfs:label "ectoderm development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the outermost of the three germ layers during its formation and differentiation during gastrulation." ;
  rdfs:subClassOf obo:VT_0001674 .

obo:VT_0011267 a rdfs:Class ;
  rdfs:label "diaphragm molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the thin musculomebranous barrier that separates the abdominal and thoracic cavities; often used for breathing control." ;
  rdfs:subClassOf obo:VT_0002279 .

obo:VT_0006062 a rdfs:Class ;
  rdfs:label "vena cava morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of either of the two largest veins in the body." ;
  rdfs:subClassOf obo:VT_0002725 .

obo:VT_1000181 a rdfs:Class ;
  rdfs:label "viable offspring quantity" ;
  rdfs:comment "The proportion or number of offspring born alive." ;
  rdfs:subClassOf obo:VT_1000189 .

obo:VT_0003797 a rdfs:Class ;
  rdfs:label "compact bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outer layers of solid, hard bone that cover spongy bone; consist of parallel osteons containing mineral deposits and interstitial lamellae." ;
  rdfs:subClassOf obo:VT_0010003 .

obo:VT_0000179 a rdfs:Class ;
  rdfs:label "obsolete blood molecular composition trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the blood.
consider: VT:0015078

Reinstated 6/29/21, VT:0010931""" .

obo:VT_0003932 a rdfs:Class ;
  rdfs:label "molar crown morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the upper part of the molar, which is normally covered with enamel." ;
  rdfs:subClassOf obo:VT_0002689 .

obo:VT_0000613 a rdfs:Class ;
  rdfs:label "salivary gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the saliva-secreting glands of the oral cavity." ;
  rdfs:subClassOf obo:VT_0000050 , obo:VT_0002163 .

obo:VT_0003164 a rdfs:Class ;
  rdfs:label "posterior semicircular canal size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the posterior segment of the long bony tube of the labyrinth that is involved in the sense of balance." ;
  rdfs:subClassOf obo:VT_0002858 .

obo:VT_0003943 a rdfs:Class ;
  rdfs:label "hepatobiliary system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the liver, gall bladder, or bile ducts during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0000124 a rdfs:Class ;
  rdfs:label "tooth quantity" ;
  rdfs:comment "The proportion or number of the hard structures of the upper and lower jaws used in mastication." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0008689 a rdfs:Class ;
  rdfs:label "interleukin-23 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a heterodimeric cytokine that plays a role in innate and adaptive immune responses; it is produced by dendritic cells, macrophages and a variety of other immune cells." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0011351 a rdfs:Class ;
  rdfs:label "wattle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the fleshy dewlap or caruncle hanging from various parts of the head or neck in several groups of birds, goats, and other animals." ;
  rdfs:subClassOf obo:VT_0010007 , obo:VT_0015071 .

obo:VT_0010697 a rdfs:Class ;
  rdfs:label "blood chylomicron cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the cholesterol associated with lipoprotein complexes that transport exogenous triglycerides and cholesterol from the intestines to other tissues." ;
  rdfs:subClassOf obo:VT_0000180 .

obo:VT_0000832 a rdfs:Class ;
  rdfs:label "thalamus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large ovoid mass of paired bodies containing mostly gray matter and forming part of the lateral wall of the third ventricle of the brain." ;
  rdfs:subClassOf obo:VT_0000830 .

obo:VT_0008088 a rdfs:Class ;
  rdfs:label "T-helper 1 cell differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which relatively unspecialized cells acquire the specialized features of the subset of the type of T-helper cell whose cytokine production favors cellular immune responses and delayed type hypersensitivity." ;
  rdfs:subClassOf obo:VT_0008076 .

obo:VT_0002985 a rdfs:Class ;
  rdfs:label "urine calcium amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of this metallic bivalent element with atomic symbol Ca and atomic number 20." ;
  rdfs:subClassOf obo:VT_0010499 , obo:VT_0015086 .

obo:VT_0002388 a rdfs:Class ;
  rdfs:label "Peyer's patch epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the specialized epithelium of the protruding lymphoid tissue located on the mucosa of the small intestine that is composed of densely packed B cell follicles." ;
  rdfs:subClassOf obo:VT_0000696 .

obo:VT_0010007 a rdfs:Class ;
  rdfs:label "skin adnexa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the tissues or structures associated with or embedded in the skin." ;
  rdfs:subClassOf obo:VT_0100020 .

obo:VT_0002557 a rdfs:Class ;
  rdfs:label "conspecific interaction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the behavior of animals towards other individuals of the same species." ;
  rdfs:subClassOf obo:VT_0010445 .

obo:VT_0011202 a rdfs:Class ;
  rdfs:label "muscle carnosine amount" ;
  rdfs:comment "The proportion, quantity, or volume of a dipeptide molecule made up of beta-alanine and histidine detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0007086 a rdfs:Class ;
  rdfs:label "heart ventricle septum thickness" ;
  rdfs:comment "The distance between the surfaces of the wall between the two lower chambers of the heart." ;
  rdfs:subClassOf obo:VT_0007082 .

obo:VT_0001305 a rdfs:Class ;
  rdfs:label "lens size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the transparent structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0001303 .

obo:VT_0010659 a rdfs:Class ;
  rdfs:label "feather tract morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the areas of the skin of a bird in which feathers grow; they are well defined and separated by unfeathered areas called apteria." ;
  rdfs:subClassOf obo:VT_0010007 .

obo:VT_0008184 a rdfs:Class ;
  rdfs:label "naive B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a mature B cell which has not yet been activated by antigen." ;
  rdfs:subClassOf obo:VT_0008171 .

obo:VT_0002292 a rdfs:Class ;
  rdfs:label "gestation period duration" ;
  rdfs:comment "The length of time between when a fertilized egg implants in the wall of the uterus and the birth of offspring." ;
  rdfs:subClassOf obo:VT_0003699 .

obo:VT_0000511 a rdfs:Class ;
  rdfs:label "intestinal mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mucous lining of the intestine; this consists of epithelium, lamina propria, and a layer of smooth muscle cells." ;
  rdfs:subClassOf obo:VT_0000477 .

obo:VT_0011256 a rdfs:Class ;
  rdfs:label "telencephalon molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the paired anteriolateral division of the prosencephalon plus the lamina terminalis from which the olfactory lobes, cerebral cortex, and subcortical nuclei are derived." ;
  rdfs:subClassOf obo:VT_0000787 , obo:VT_0011258 .

obo:VT_0010459 a rdfs:Class ;
  rdfs:label "behavioral response to novel environment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its actions or reactions as a result of exposure to new surroundings." ;
  rdfs:subClassOf obo:VT_0003107 .

obo:VT_0011321 a rdfs:Class ;
  rdfs:label "kidney medulla molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the inner portion of the kidney consisting of the renal pyramids." ;
  rdfs:subClassOf obo:VT_0003014 , obo:VT_0010558 .

obo:VT_0005500 a rdfs:Class ;
  rdfs:label "gustatory system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the components of the organs involved in taste." ;
  rdfs:subClassOf obo:VT_0015065 .

obo:VT_0010911 a rdfs:Class ;
  rdfs:label "glomerular capillary morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small branching blood vessels in the kidney glomerulus that receive blood from the kidney afferent arterioles." ;
  rdfs:subClassOf obo:VT_0005325 .

obo:VT_0003619 a rdfs:Class ;
  rdfs:label "urine color" ;
  rdfs:comment "The visually perceived hue of the fluid and dissolved substances excreted by the kidneys." ;
  rdfs:subClassOf obo:VT_0000056 .

obo:VT_0000188 a rdfs:Class ;
  rdfs:label "blood glucose amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the monosaccharide that is the end product of carbohydrate digestion; D-glucose serves as a primary energy source for living organisms." ;
  rdfs:subClassOf obo:VT_0010903 .

obo:VT_0000875 a rdfs:Class ;
  rdfs:label "cerebellar Purkinje cell layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cell layer that lies just underneath the molecular layer of the cerebellar cortex; it contains the neuronal cell bodies of the Purkinje cells that are arranged side by side in a single layer, and candelabrum interneurons are vertically oriented between the Purkinje cells." ;
  rdfs:subClassOf obo:VT_0004097 .

obo:VT_0010850 a rdfs:Class ;
  rdfs:label "cervical spinal cord 5-hydroxyindoleacetic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in a spinal cord segment adjacent to a cervical region of indole-3-acetic acid substituted by a hydroxy group at C-5." ;
  rdfs:subClassOf obo:VT_0010577 , obo:VT_0010836 .

obo:VT_0003894 a rdfs:Class ;
  rdfs:label "obsolete Purkinje cell innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers that connect to the Purkinje cells.
consider: VT:0010151, VT:0010154""" .

obo:VT_0005273 a rdfs:Class ;
  rdfs:label "cranial base morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bones that form the floor of the cranial cavity." ;
  rdfs:subClassOf obo:VT_0000074 .

obo:VT_0010341 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9,trans-13-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a cis double bond at C-9, and a trans double bond at C-13." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0011300 a rdfs:Class ;
  rdfs:label "CA1 field of hippocampus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the part of the hippocampus proper bounded by CA2 and the subiculum, characterized by pyramidal neurons that receive projections from pyramidal neurons of CA3 via the Schaffer collaterals. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011151 .

obo:VT_0011120 a rdfs:Class ;
  rdfs:label "chondrocyte molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in non-dividing (terminally differentiated) cartilage cells." ;
  rdfs:subClassOf obo:VT_0000166 , obo:VT_0011233 .

obo:VT_1000639 a rdfs:Class ;
  rdfs:label "uterine horn length" ;
  rdfs:comment "The distance from point to point along the longest axis of the upper right or left portion of the uterus to which the uterine tube is connected." ;
  rdfs:subClassOf obo:VT_0002637 , obo:VT_0010394 .

obo:VT_0004406 a rdfs:Class ;
  rdfs:label "cochlear hair cell quantity" ;
  rdfs:comment "The proportion or number of the sensory epithelial cells of the cochlea, which are normally in synaptic contact with the auditory nerve." ;
  rdfs:subClassOf obo:VT_0002622 .

obo:VT_0005346 a rdfs:Class ;
  rdfs:label "blood aldosterone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this hormone, secreted by the adrenal cortex; regulates sodium conservation and potassium secretion in the distal renal tubule." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0004007 a rdfs:Class ;
  rdfs:label "lung blood vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the blood vessels of either or both of the spongy organs of respiration contained within the pleural cavity of the thorax." ;
  rdfs:subClassOf obo:VT_0001175 , obo:VT_0001614 .

obo:VT_0002340 a rdfs:Class ;
  rdfs:label "axillary lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph nodes located around the axillary vein that receive lymphatic drainage from the upper or forelimb, scapular region and pectoral region." ;
  rdfs:subClassOf obo:VT_0008463 .

obo:VT_0004281 a rdfs:Class ;
  rdfs:label "hypoglossal nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of motor neurons throughout most of the length of the medulla oblongata that give rise to the motor fibers of the hypoglossal nerve." ;
  rdfs:subClassOf obo:VT_0000846 .

obo:VT_0010590 a rdfs:Class ;
  rdfs:label "brain phytosterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the brain (one of the two components of the central nervous system and the center of thought and emotion) of a plant-derived steroid with one OH group." ;
  rdfs:subClassOf obo:VT_0010583 .

obo:VT_0000059 a rdfs:Class ;
  rdfs:label "osteoclast development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of this multinucleated cell, which normally functions in the absorption and removal of osseous tissue." ;
  rdfs:subClassOf obo:VT_0010005 .

obo:VT_0002663 a rdfs:Class ;
  rdfs:label "blastocele development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cavity in the blastula of the developing embryo." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0002463 a rdfs:Class ;
  rdfs:label "neutrophil physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the immature or mature forms of a granular leukocyte that in its mature form has a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes." ;
  rdfs:subClassOf obo:VT_0002462 .

obo:VT_0000072 a rdfs:Class ;
  rdfs:label "bone elasticity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of bone to recover size and shape after deformation in any way." ;
  rdfs:subClassOf obo:VT_0000070 .

obo:VT_0005271 a rdfs:Class ;
  rdfs:label "lacrimal bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the irregularly thin plate that forms part of the medial wall of the orbit behind the frontal process of the maxilla." ;
  rdfs:subClassOf obo:VT_0005246 , obo:VT_0005274 .

obo:VT_0005301 a rdfs:Class ;
  rdfs:label "corneal endothelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the single layer of large flattened cells that cover the surface of the cornea." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0000020 a rdfs:Class ;
  rdfs:label "heart left atrium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the left upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003105 .

obo:VT_0000019 a rdfs:Class ;
  rdfs:label "heart right atrium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the right upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003105 .

obo:VT_0010794 a rdfs:Class ;
  rdfs:label "liver ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the liver. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010497 .

obo:VT_0000467 a rdfs:Class ;
  rdfs:label "esophagus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the part of the digestive canal through which food passes from the pharynx to the stomach." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0005465 a rdfs:Class ;
  rdfs:label "T-helper 1 physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the type of T-helper cell whose cytokine production favors cellular immune responses and delayed type hypersensitivity." ;
  rdfs:subClassOf obo:VT_0005463 .

obo:VT_0010176 a rdfs:Class ;
  rdfs:label "obsolete C9 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C9." .

obo:VT_0011001 a rdfs:Class ;
  rdfs:label "trimethylamine N-oxide amount" ;
  rdfs:comment "The proportion, quantity, or volume of a tertiary amine oxide resulting from the oxidation of the amino group of trimethylamine; a metabolite derived from gut bacteria." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0011369 a rdfs:Class ;
  rdfs:label "digestive gas excretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to any excreted gas that is produced by the digestive tract." ;
  rdfs:subClassOf obo:VT_0001664 .

obo:VT_0003572 a rdfs:Class ;
  rdfs:label "uterus development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0003936 .

obo:VT_0009919 a rdfs:Class ;
  rdfs:label "transitional stage T1 B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a type of transitional stage B cell that migrates from the bone marrow into the peripheral circulation, and finally to the spleen; this cell type has the phenotype surface IgM-positive, surface IgD-negative, CD21-negative, CD23-negative, and CD62L-negative." ;
  rdfs:subClassOf obo:VT_0008188 .

obo:VT_0010354 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-10,cis-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a trans double bond at C-10, and a cis double bond at C-12." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0010280 a rdfs:Class ;
  rdfs:label "milk casein amount" ;
  rdfs:comment "The proportion, quantity, or volume of casein, the predominant phosphoprotein in milk." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0010474 a rdfs:Class ;
  rdfs:label "blood non-HDL cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the lipoprotein:cholesterol complex that is not in the high density lipoprotein fraction; includes low density lipoproteins (LDL), very low density lipoproteins (VLDL), and intermediate density lipoproteins (IDL)." ;
  rdfs:subClassOf obo:VT_0000180 .

obo:VT_0000004 a rdfs:Class ;
  rdfs:label "forelimb conformation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the assessment of the overall structure and proportions of the anterior or superior jointed appendages of an animal, used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_1000738 .

obo:VT_0000138 a rdfs:Class ;
  rdfs:label "vertebra quantity" ;
  rdfs:comment "The proportion or number of bony segments of the spinal column." ;
  rdfs:subClassOf obo:VT_0000137 .

obo:VT_0010746 a rdfs:Class ;
  rdfs:label "coronary artery integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of any of the arteries that branch from the aorta to supply blood to the heart." ;
  rdfs:subClassOf obo:VT_0004111 , obo:VT_0010639 .

obo:VT_0008242 a rdfs:Class ;
  rdfs:label "perivascular macrophage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of macrophages that line the small blood vessels." ;
  rdfs:subClassOf obo:VT_0001614 , obo:VT_0002446 .

obo:VT_0000432 a rdfs:Class ;
  rdfs:label "head morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0005382 .

obo:VT_0011105 a rdfs:Class ;
  rdfs:label "nucleus accumbens molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the group of neurons located at the head of the caudate nucleus and anterior to the putamen; these neurons normally are involved in sensations of pleasure and reactions to addictive substances." ;
  rdfs:subClassOf obo:VT_0004080 , obo:VT_0011256 .

obo:VT_0011336 a rdfs:Class ;
  rdfs:label "blood beta-carotene amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a carotenoid that is a precursor of vitamin A." ;
  rdfs:subClassOf obo:VT_0010626 .

obo:VT_0010865 a rdfs:Class ;
  rdfs:label "cervical spinal cord dopamine amount" ;
  rdfs:comment "The proportion, quantity or volume in a spinal cord segment adjacent to a cervical region of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0010577 , obo:VT_0010839 .

obo:VT_0002725 a rdfs:Class ;
  rdfs:label "vein morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the blood vessels that carry blood towards the heart." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_0010552 a rdfs:Class ;
  rdfs:label "mammary gland integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0002674 a rdfs:Class ;
  rdfs:label "sperm motility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the mobility of the spermatozoa." ;
  rdfs:subClassOf obo:VT_0003698 .

obo:VT_0001942 a rdfs:Class ;
  rdfs:label "lung capacity" ;
  rdfs:comment "The volume of or amount of air contained in the lungs at various points of the respiratory cycle." ;
  rdfs:subClassOf obo:VT_0001943 .

obo:VT_0003015 a rdfs:Class ;
  rdfs:label "blood bicarbonate amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of inorganic salts that contain the -HCO3 radical, which are an important factor in regulating the pH of the blood." ;
  rdfs:subClassOf obo:VT_0010998 .

obo:VT_0010589 a rdfs:Class ;
  rdfs:label "blood sitosterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a plant-derived sterol similar to cholesterol." ;
  rdfs:subClassOf obo:VT_0010587 .

obo:VT_0011069 a rdfs:Class ;
  rdfs:label "tendon molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the fibrous bands or cords of connective tissue at the ends of muscle fibers that attach muscles to bones and other structures." ;
  rdfs:subClassOf obo:VT_0005503 , obo:VT_0011282 .

obo:VT_0011123 a rdfs:Class ;
  rdfs:label "neck trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the portion of the body that extends from the head to the pectoral girdle, encompassing the cervical vertebral column." ;
  rdfs:subClassOf obo:VT_0100003 .

obo:VT_0000616 a rdfs:Class ;
  rdfs:label "palatine gland ductal branching morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the branches and distal tips of the vesicles of the palatine gland." ;
  rdfs:subClassOf obo:VT_0000615 , obo:VT_0000620 .

obo:VT_0004323 a rdfs:Class ;
  rdfs:label "sternum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the long, flat bone of the chest." ;
  rdfs:subClassOf obo:VT_0000157 .

obo:VT_0000804 a rdfs:Class ;
  rdfs:label "occipital lobe morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the posterior part of the cerebral hemisphere." ;
  rdfs:subClassOf obo:VT_0015105 .

obo:VT_0003630 a rdfs:Class ;
  rdfs:label "urothelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial lining in organs of the urinary tract." ;
  rdfs:subClassOf obo:VT_0000516 .

obo:VT_1000146 a rdfs:Class ;
  rdfs:label "longissimus thoracis mass" ;
  rdfs:comment "The amount of matter in the muscle of the back which is the intermediate and largest of the continuations of the Sacrospinalis." ;
  rdfs:subClassOf obo:VT_0010117 , obo:VT_1000712 .

obo:VT_0009539 a rdfs:Class ;
  rdfs:label "Hassall's corpuscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small spherical bodies of epithelial cells found in the medulla of the thymus, that are arranged in a concentric pattern around clusters of degenerating lymphocytes, eosinophils and macrophages." ;
  rdfs:subClassOf obo:VT_0002375 , obo:VT_0009544 .

obo:VT_0002447 a rdfs:Class ;
  rdfs:label "erythrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fetal and adult cells in the blood that carry oxygen, red blood cells." ;
  rdfs:subClassOf obo:VT_0002429 .

obo:VT_0015105 a rdfs:Class ;
  rdfs:label "cerebrum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the largest part of the brain, derived from the telencephalon, which is composed of a right and a left hemisphere, each of which contains an outer cerebral cortex and a subcortical basal ganglia; cerebral functions include sensorimotor, emotional, and intellectual activities." ;
  rdfs:subClassOf obo:VT_0000787 .

obo:VT_1000524 a rdfs:Class ;
  rdfs:label "adipose fatty acid C14:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C14H28O2) present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005286 .

obo:VT_0002693 a rdfs:Class ;
  rdfs:label "pancreas gland physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream." ;
  rdfs:subClassOf obo:VT_0000066 , obo:VT_0002164 .

obo:VT_0010922 a rdfs:Class ;
  rdfs:label "liver iron amount" ;
  rdfs:comment "The proportion, quantity, or volume in liver tissue of this metallic element that normally occurs in the heme of hemoglobin, myoglobin, transferrin, ferritin, and iron-containing porphyrins; it is an essential component of enzymes such as catalase, peroxidase, and various cytochromes." ;
  rdfs:subClassOf obo:VT_0001770 , obo:VT_0010497 .

obo:VT_0000154 a rdfs:Class ;
  rdfs:label "obsolete lymph circulatory physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable functional characteristic related to the function of or processes in the flow of lymph through its vasculature or of the lymph or vasculature itself." .

obo:VT_0015046 a rdfs:Class ;
  rdfs:label "hippocampus neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons located in the hippocampus, the deep-lying structure of the cerebrum involved with memory storage and spatial navigation." ;
  rdfs:subClassOf obo:VT_0000807 , obo:VT_0002882 .

obo:VT_0001044 a rdfs:Class ;
  rdfs:label "enteric nervous system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the autonomic nervous system that innervates the gastrointestinal tract, the pancreas, and the gallbladder and can autonomously sense the tension and the chemical environment in the gut and regulate blood vessel tone, motility, secretions, and fluid transport." ;
  rdfs:subClassOf obo:VT_0002751 .

obo:VT_0010520 a rdfs:Class ;
  rdfs:label "spleen periarteriolar lymphoid sheath cell quantity" ;
  rdfs:comment "The proportion or number of cells in the area of the spleen within the marginal sinus, in which T cells surround the central arteriole." ;
  rdfs:subClassOf obo:VT_0002358 .

obo:VT_0000239 a rdfs:Class ;
  rdfs:label "common myeloid progenitor cell quantity" ;
  rdfs:comment "The proportion or number of the hematopoietic stem cells that are capable of forming any of the myeloid lineage cells." ;
  rdfs:subClassOf obo:VT_0000172 , obo:VT_0002123 .

obo:VT_0010560 a rdfs:Class ;
  rdfs:label "pancreas integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream." ;
  rdfs:subClassOf obo:VT_0001944 .

obo:VT_0000149 a rdfs:Class ;
  rdfs:label "scapula morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of either or both of the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0010089 .

obo:VT_0011029 a rdfs:Class ;
  rdfs:label "urethra ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the urethra and adjacent tissue. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011028 .

obo:VT_0001101 a rdfs:Class ;
  rdfs:label "superior vagus ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upper ganglion of the vagus nerve located at the jugular foramen." ;
  rdfs:subClassOf obo:VT_0001100 .

obo:VT_0008077 a rdfs:Class ;
  rdfs:label "CD8-positive T cell quantity" ;
  rdfs:comment "The proportion or number of the regulatory subset of T lymphocytes that are involved in MHC class I restricted interactions." ;
  rdfs:subClassOf obo:VT_0001830 , obo:VT_0005010 .

obo:VT_0000860 a rdfs:Class ;
  rdfs:label "primary somatosensory cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the postcentral gyrus and central sulcus that is involved in somatic sensation." ;
  rdfs:subClassOf obo:VT_0000859 .

obo:VT_0001096 a rdfs:Class ;
  rdfs:label "glossopharyngeal ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of neuron cell bodies associated with the ninth cranial nerve." ;
  rdfs:subClassOf obo:VT_0001081 .

obo:VT_0011081 a rdfs:Class ;
  rdfs:label "middle temporal gyrus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the longitudinal ridge on the lateral surface of the temporal lobe with the superior temporal gyrus along its dorsal edge and with the inferior temporal gyrus along its ventral edge." ;
  rdfs:subClassOf obo:VT_0011077 .

obo:VT_0005402 a rdfs:Class ;
  rdfs:label "action potential trait" ;
  rdfs:comment "Any measurable characteristic related to the change in electrical potential of a neuron or muscle fiber when stimulated above its threshold potential." ;
  rdfs:subClassOf obo:VT_0002272 .

obo:VT_0000194 a rdfs:Class ;
  rdfs:label "obsolete blood vessel proliferation trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the process of increasing the number of blood vessels within a given area or volume of tissue.
consider: VT:0010299, VT:0010300""" .

obo:VT_0001011 a rdfs:Class ;
  rdfs:label "superior cervical ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of neurons that is the largest of the sympathetic trunk; normally lies at the base of the skull and innervates the head and neck." ;
  rdfs:subClassOf obo:VT_0015050 .

obo:VT_1000747 a rdfs:Class ;
  rdfs:label "type I muscle fiber quantity" ;
  rdfs:comment "The proportion or number of type I, slow oxidative fibers in skeletal muscle; these red fibers are rich in sarcoplasm, myoglobin, and mitochondria and contract more slowly than white fibers." ;
  rdfs:subClassOf obo:VT_1000743 .

obo:VT_0001348 a rdfs:Class ;
  rdfs:label "lacrimal gland physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the glands that secrete tears." ;
  rdfs:subClassOf obo:VT_0002164 , obo:VT_0005253 .

obo:VT_0005121 a rdfs:Class ;
  rdfs:label "blood prolactin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the hormone that stimulates milk secretion." ;
  rdfs:subClassOf obo:VT_0003361 , obo:VT_0005116 .

obo:VT_0000987 a rdfs:Class ;
  rdfs:label "obsolete Merkel's receptor innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to the modified epidermal cells located in the stratum basale and found mostly in areas where sensory perception is acute.
consider: VT:0010148, VT:0010150""" .

obo:VT_0003249 a rdfs:Class ;
  rdfs:label "muscle fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons in the contractile tissue that effects movement; they are saturated and unsaturated." ;
  rdfs:subClassOf obo:VT_0010021 , obo:VT_0010046 , obo:VT_1000479 .

obo:VT_0003974 a rdfs:Class ;
  rdfs:label "endocardium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thin serous membrane, primarily composed of endothelial tissue, that lines the interior of the heart." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0010096 a rdfs:Class ;
  rdfs:label "osteoblast quantity" ;
  rdfs:comment "The proportion or number of bone-forming cells that are derived from mesenchymal osteoprogenitor cells and form an osseous matrix in which they become enclosed as osteocytes." ;
  rdfs:subClassOf obo:VT_0010094 .

obo:VT_0010616 a rdfs:Class ;
  rdfs:label "blood lactate amount" ;
  rdfs:comment "The proportion, quantity, or volume in blood of the compound produced from pyruvate by lactate dehydrogenase." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0008643 a rdfs:Class ;
  rdfs:label "blood interleukin-12a amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the p35 subunit of interleukin-12." ;
  rdfs:subClassOf obo:VT_0008616 .

obo:VT_0005645 a rdfs:Class ;
  rdfs:label "hypothalamus physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the functions of or processes in the ventral and medial region of the diencephalon forming the walls of the ventral half of the third ventricle, which is normally involved in the functions of the autonomic (visceral motor) nervous system and, through its vascular link with the anterior lobe of the pituitary gland, in endocrine mechanisms." ;
  rdfs:subClassOf obo:VT_0015058 , obo:VT_4000013 .

obo:VT_0006126 a rdfs:Class ;
  rdfs:label "outflow tract development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the path through which blood exits the heart." ;
  rdfs:subClassOf obo:VT_0000121 .

obo:VT_0002095 a rdfs:Class ;
  rdfs:label "skin pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0010706 a rdfs:Class ;
  rdfs:label "kidney glutathione amount" ;
  rdfs:comment "The proportion, quantity, or volume in kidney of this tripeptide antioxidant." ;
  rdfs:subClassOf obo:VT_0010558 .

obo:VT_0004140 a rdfs:Class ;
  rdfs:label "chief cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the pepsinogen producing epithelial cells that are clustered at the base of the gastric gland." ;
  rdfs:subClassOf obo:VT_0003892 .

obo:VT_0010690 a rdfs:Class ;
  rdfs:label "pericardial fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue found around the heart." ;
  rdfs:subClassOf obo:VT_0010689 .

obo:VT_0004995 a rdfs:Class ;
  rdfs:label "B cell clonal deletion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of removal by apoptosis of immature B lymphocytes that interact with self antigens during maturation." ;
  rdfs:subClassOf obo:VT_0004944 , obo:VT_0005001 .

obo:VT_0010068 a rdfs:Class ;
  rdfs:label "kidney collecting duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small ducts that receive urine from several renal tubules, which converge to join larger collecting tubules (papillary ducts of Bellini) that open into the renal pelvis." ;
  rdfs:subClassOf obo:VT_0002703 .

obo:VT_0002921 a rdfs:Class ;
  rdfs:label "post-tetanic potential" ;
  rdfs:comment "The size or duration of potentials that persist after tetanic stimulation of central synapses." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0003699 a rdfs:Class ;
  rdfs:label "female reproductive system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the female organs associated with producing offspring." ;
  rdfs:subClassOf obo:VT_0001919 .

obo:VT_0001022 a rdfs:Class ;
  rdfs:label "L5 dorsal root ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of nerve cell bodies located on the dorsal spinal roots within the vertebral column at the level of the fifth lumbar vertebra." ;
  rdfs:subClassOf obo:VT_0015054 .

obo:VT_0003857 a rdfs:Class ;
  rdfs:label "hindlimb zeugopod morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the distal elements of the developing hindlimb that will give rise to the tibia and fibula." ;
  rdfs:subClassOf obo:VT_0006279 .

obo:VT_0010455 a rdfs:Class ;
  rdfs:label "rhythmic behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic of an action or reaction of an organism that recurs with measured regularity." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0008495 a rdfs:Class ;
  rdfs:label "blood immunoglobulin G1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin class G1." ;
  rdfs:subClassOf obo:VT_0001805 .

obo:VT_0000425 a rdfs:Class ;
  rdfs:label "eyelash retention trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to maintain the stiff hairs projecting from the margin of the eyelid without noticeable loss." ;
  rdfs:subClassOf obo:VT_4000007 .

obo:VT_0010739 a rdfs:Class ;
  rdfs:label "skin chloride amount" ;
  rdfs:comment "The proportion, quantity, or volume in the skin of the monovalent anion of chlorine." ;
  rdfs:subClassOf obo:VT_0010738 .

obo:VT_1000683 a rdfs:Class ;
  rdfs:label "obsolete total heart ventricle size trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the physical magnitude of both of the lower chambers of the heart." .

obo:VT_0011235 a rdfs:Class ;
  rdfs:label "carotid artery molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the bilaterally paired branched artery that originates from the aortic arches and divides into and includes as parts the internal and external carotid arteries." ;
  rdfs:subClassOf obo:VT_0011171 , obo:VT_0015090 .

obo:VT_0000386 a rdfs:Class ;
  rdfs:label "hair follicle root sheath morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epidermally derived layer surrounding the hair follicle." ;
  rdfs:subClassOf obo:VT_0002076 .

obo:VT_0010295 a rdfs:Class ;
  rdfs:label "milk magnesium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of  this alkaline earth element, atomic number 12, atomic symbol Mg." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0010172 a rdfs:Class ;
  rdfs:label "obsolete C5 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C5." .

obo:VT_0005587 a rdfs:Class ;
  rdfs:label "Meckel's cartilage development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cartilage bar in the mandibular arch that forms a temporary supporting structure in the embryonic mandible; gives rise to middle ear bones and sphenomandibular and anterior malleolar ligaments." ;
  rdfs:subClassOf obo:VT_0015047 .

obo:VT_0003240 a rdfs:Class ;
  rdfs:label "hippocampus neuron quantity" ;
  rdfs:comment "The proportion or number of neurons in the deep lying structure of the cerebrum involved with memory storage and spatial navigation." ;
  rdfs:subClassOf obo:VT_0015026 , obo:VT_0015046 .

obo:VT_0005100 a rdfs:Class ;
  rdfs:label "choroid pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the thin, highly vascularized membrane covering most of the posterior of the eye between the retina and the sclera." ;
  rdfs:subClassOf obo:VT_0005098 .

obo:VT_0001421 a rdfs:Class ;
  rdfs:label "scala media size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the division of the spiral canal of the cochlea that contains the organ of Corti (the neuroepithelial receptor organ for hearing)." ;
  rdfs:subClassOf obo:VT_0003169 .

obo:VT_0010250 a rdfs:Class ;
  rdfs:label "hematopoietic system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of cells found in the blood and/or the blood-forming organs and tissues." ;
  rdfs:subClassOf obo:VT_0010252 .

obo:VT_0005372 a rdfs:Class ;
  rdfs:label "life span trait" ;
  rdfs:comment "Any measurable or observable characteristic pertaining to the period of time an organism survives or is expected to survive or maintains or is expected to maintain a specific function." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0003871 a rdfs:Class ;
  rdfs:label "myelin sheath morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the insulating envelope that surrounds nerve fibers or axons." ;
  rdfs:subClassOf obo:VT_0005404 .

obo:VT_0011060 a rdfs:Class ;
  rdfs:label "tissue ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in a tissue or mix of tissues of ribonucleic acid (RNA), a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0015055 a rdfs:Class ;
  rdfs:label "cloaca morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the posterior opening that serves as the only such opening for the intestinal, reproductive and urinary tracts." ;
  rdfs:subClassOf obo:VT_0015066 .

obo:VT_0004102 a rdfs:Class ;
  rdfs:label "dorsal striatum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the regions of the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain; this region controls sensory and motor functions, including eye movement and coordination of auditory and visual reflexes." ;
  rdfs:subClassOf obo:VT_0004077 .

obo:VT_0000602 a rdfs:Class ;
  rdfs:label "sinusoidal space size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cavities in the liver." ;
  rdfs:subClassOf obo:VT_0000598 .

obo:VT_0010101 a rdfs:Class ;
  rdfs:label "medullary cavity development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the marrow cavity in the shaft of a long bone during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0010005 .

obo:VT_0010306 a rdfs:Class ;
  rdfs:label "milk fatty acid C4:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a four-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0000081 a rdfs:Class ;
  rdfs:label "cranial suture closure initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of fusion of the bones of the skull." ;
  rdfs:subClassOf obo:VT_0003420 .

obo:VT_0011082 a rdfs:Class ;
  rdfs:label "superior temporal gyrus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the longitudinal ridge on the lateral surface of the temporal lobe." ;
  rdfs:subClassOf obo:VT_0000802 .

obo:VT_0001711 a rdfs:Class ;
  rdfs:label "placenta morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organ of metabolic interchange between fetus and mother, partly of embryonic origin and partly of maternal origin." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0006103 a rdfs:Class ;
  rdfs:label "midbrain roof plate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mesencephalic roof plate, including the caudal and rostral part of the midbrain roof." ;
  rdfs:subClassOf obo:VT_0000897 .

obo:VT_0002250 a rdfs:Class ;
  rdfs:label "hypopharynx morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the pharynx that lies below the upper edge of the epiglottis and opens into the larynx and the esophagus." ;
  rdfs:subClassOf obo:VT_0002234 .

obo:VT_2000018 a rdfs:Class ;
  rdfs:label "heart muscle contractility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of cardiac muscle fibers to shorten." ;
  rdfs:subClassOf obo:VT_0010110 , obo:VT_2000009 .

obo:VT_0008625 a rdfs:Class ;
  rdfs:label "blood interleukin-5 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine that promotes differentiation and activation of eosinophils; it also triggers activated B-cells to differentiate into immunoglobulin-secreting cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0003511 a rdfs:Class ;
  rdfs:label "labium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the folds of skin which form the inner lips (labia minora) and outer lips (labia majora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003126 .

obo:VT_0010605 a rdfs:Class ;
  rdfs:label "urine norepinephrine amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of this catecholamine hormone secreted by the adrenal medulla which also acts as a neurotransmitter in the central and sympathetic nervous systems; precursor of epinephrine." ;
  rdfs:subClassOf obo:VT_0010502 .

obo:VT_0001930 a rdfs:Class ;
  rdfs:label "meiosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of nuclear division that results in gametes with one half the normal chromosome number of the original cell." ;
  rdfs:subClassOf obo:VT_0001929 .

obo:VT_0011290 a rdfs:Class ;
  rdfs:label "ventral tegmental area ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in  the unpaired midbrain region situated in the ventromedial portion of the reticular formation. The VTA is medial to the substantia nigra and ventral to the red nucleus, and extends caudally from the posterior hypothalamus in the diencephalon. The VTA contains dopamine neurons that project to various limbic and cortical areas and is a critical component of the brain's reward circuitry. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011288 .

obo:VT_0011047 a rdfs:Class ;
  rdfs:label "hypothalamus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the ventral part of the diencephalon extending from the region of the optic chiasm to the caudal border of the mammillary bodies and forming the inferior and lateral walls of the third ventricle; this region regulates the autonomic nervous system via hormone production and release." ;
  rdfs:subClassOf obo:VT_0000837 , obo:VT_0011258 .

obo:VT_0011194 a rdfs:Class ;
  rdfs:label "milk immunoglobulin A amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the principal immunoglobulin in exocrine secretions; prevents pathogens from invading the body through the mucosa of the gastrointestinal, pulmonary, and genitourinary tracts." ;
  rdfs:subClassOf obo:VT_0011193 .

obo:VT_0010369 a rdfs:Class ;
  rdfs:label "milk fatty acid C18:3(n-3) amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated, omega-3 fatty acid with an eighteen-carbon backbone and three double bonds." ;
  rdfs:subClassOf obo:VT_0010322 , obo:VT_0010374 .

obo:VT_0010984 a rdfs:Class ;
  rdfs:label "blood L-tryptophan amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of tryptophan an alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0000780 a rdfs:Class ;
  rdfs:label "corpus callosum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the thick bundle of nerve fibers comprising a commissural plate connecting the two cerebral hemispheres; it consists of contralateral axon projections that provides communications between the right and left cerebral hemispheres." ;
  rdfs:subClassOf obo:VT_0002199 , obo:VT_0015105 .

obo:VT_0005194 a rdfs:Class ;
  rdfs:label "anterior uvea morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the front, or ventral, portion of the vascular, pigmentary, or middle coat of the eye, including the ciliary body and the iris." ;
  rdfs:subClassOf obo:VT_0005193 , obo:VT_0005197 .

obo:VT_0010734 a rdfs:Class ;
  rdfs:label "anorectal integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the rectum and anus." ;
  rdfs:subClassOf obo:VT_0000492 , obo:VT_0005034 .

obo:VT_0002389 a rdfs:Class ;
  rdfs:label "Peyer's patch follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the Peyer's patch normally occupied by B cells." ;
  rdfs:subClassOf obo:VT_0000696 .

obo:VT_0003211 a rdfs:Class ;
  rdfs:label "aorta elastic tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the slender connective tissue fiber in tissue of the main trunk of the systemic arteries which is characterized by great elasticity." ;
  rdfs:subClassOf obo:VT_0000272 , obo:VT_0006083 .

obo:VT_0004493 a rdfs:Class ;
  rdfs:label "cochlea size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the spiral-shaped bony canal in the inner ear containing the hair cells that transduce sound." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0010777 a rdfs:Class ;
  rdfs:label "serum alpha-fetoprotein amount" ;
  rdfs:comment "The proportion, quantity, or volume in serum of the highly abundant plasma protein produced by the yolk sac, liver and gastrointestinal tract during fetal life and by certain neoplasms in the adult." ;
  rdfs:subClassOf obo:VT_0010776 .

obo:VT_0008665 a rdfs:Class ;
  rdfs:label "interleukin-12a secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of the p35 subunit of interleukin-12." ;
  rdfs:subClassOf obo:VT_0008662 .

obo:VT_0010650 a rdfs:Class ;
  rdfs:label "blood haptoglobin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any alpha2 globulin that can combine with free oxyhemoglobin to form a stable complex." ;
  rdfs:subClassOf obo:VT_0011344 .

obo:VT_0001700 a rdfs:Class ;
  rdfs:label "embryo turning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the axial rotation of the germ layers of the embryo during the primitive streak/early somite stage (Mus:E8.5-E9.5) such that the curvature of the entire trunk region is reversed and the neural ectoderm moves to the convex region and the midgut region becomes located in the concave region." ;
  rdfs:subClassOf obo:VT_0001695 .

obo:VT_0002351 a rdfs:Class ;
  rdfs:label "cervical lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph nodes found near the neck and shoulders." ;
  rdfs:subClassOf obo:VT_0008463 .

obo:VT_0015038 a rdfs:Class ;
  rdfs:label "coat/hair development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the fine, keratinized filamentous growths arising from the epidermis of mammals." ;
  rdfs:subClassOf obo:VT_0010008 .

obo:VT_0008164 a rdfs:Class ;
  rdfs:label "B-1a B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the B-1 B cell subset bearing the CD5 surface marker." ;
  rdfs:subClassOf obo:VT_0004940 .

obo:VT_0003529 a rdfs:Class ;
  rdfs:label "clitoris size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the small, erectile body located at the anterior end of the vulva." ;
  rdfs:subClassOf obo:VT_0003127 .

obo:VT_0010874 a rdfs:Class ;
  rdfs:label "brain 5-hydroxyindoleacetic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the brain of indole-3-acetic acid substituted by a hydroxy group at C-5." ;
  rdfs:subClassOf obo:VT_0010585 .

obo:VT_0000927 a rdfs:Class ;
  rdfs:label "floor plate size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the floor plate." ;
  rdfs:subClassOf obo:VT_0000925 .

obo:VT_0004292 a rdfs:Class ;
  rdfs:label "spiral ligament fibrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the four types of fibrocytes (types I, II , III and IV) that constitute the spiral ligament." ;
  rdfs:subClassOf obo:VT_0004288 .

obo:VT_0004252 a rdfs:Class ;
  rdfs:label "heart tube looping direction" ;
  rdfs:comment "The orientation of bending during the process by which the embryonic heart tube bends to transform from a straight tube into the final folded configuration of the adult heart." ;
  rdfs:subClassOf obo:VT_0000269 .

obo:VT_0015090 a rdfs:Class ;
  rdfs:label "artery molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of molecules (proteins, minerals, nutrients, gases, or other substances) within the blood vessels that carry blood away from the heart." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0010155 a rdfs:Class ;
  rdfs:label "cochlear inner hair cell afferent nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of afferent terminals and/or their synapses in the cochlear IHC region." ;
  rdfs:subClassOf obo:VT_0004393 .

obo:VT_0007019 a rdfs:Class ;
  rdfs:label "aortic valve configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the valve between the left ventricle and the ascending aorta." ;
  rdfs:subClassOf obo:VT_0000040 .

obo:VT_0001005 a rdfs:Class ;
  rdfs:label "retinal rod cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the photoreceptors that contain rhodopsin." ;
  rdfs:subClassOf obo:VT_0001004 .

obo:VT_0008755 a rdfs:Class ;
  rdfs:label "immunoglobulin V(D)J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which immunoglobulin V, D, and J or V and J gene segments, depending on the specific locus, are recombined within a single locus." ;
  rdfs:subClassOf obo:VT_0002144 .

obo:VT_0011094 a rdfs:Class ;
  rdfs:label "esophagus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the part of the digestive canal through which food passes from the pharynx to the stomach." ;
  rdfs:subClassOf obo:VT_0000467 .

obo:VT_0010539 a rdfs:Class ;
  rdfs:label "urine potassium amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the monovalent cation of this alkali metal element." ;
  rdfs:subClassOf obo:VT_0015086 .

obo:VT_0010723 a rdfs:Class ;
  rdfs:label "conditioned place preference behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the actions or reactions of an organism pertaining to the ability to learn and remember an association between a putative rewarding internal state produced by a xenobiotic or drug with a neutral, unchanging environment." ;
  rdfs:subClassOf obo:VT_0010527 .

obo:VT_0004482 a rdfs:Class ;
  rdfs:label "interdental cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the long, spindle-shaped cells arranged in parallel rows, oriented with their vertical axis perpendicular to the luminal surface of the spiral limbus; they secrete K+ into the endolymph and secrete the tectoral membrane." ;
  rdfs:subClassOf obo:VT_0004287 .

obo:VT_0005153 a rdfs:Class ;
  rdfs:label "B cell proliferation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the B cell population undergoes expansion by cell division." ;
  rdfs:subClassOf obo:VT_0008217 .

obo:VT_0005353 a rdfs:Class ;
  rdfs:label "patella morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large sesamoid bone that articulates with the femur and, in some species, covers the anterior surface of the knee." ;
  rdfs:subClassOf obo:VT_0002109 , obo:VT_0002115 .

obo:VT_0015027 a rdfs:Class ;
  rdfs:label "craniofacial physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the region of the body that includes the front part of the head from the chin to the top of the forehead, where the mouth, eyes, nose, and other features are and the part of the skull enclosing the brain." ;
  rdfs:subClassOf obo:VT_0015057 .

obo:VT_0001931 a rdfs:Class ;
  rdfs:label "oogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of female germ cells." ;
  rdfs:subClassOf obo:VT_0001929 .

obo:VT_0003092 a rdfs:Class ;
  rdfs:label "corneal stroma thickness" ;
  rdfs:comment "The distance between the surfaces of the lamellated connective tissue layer of the cornea." ;
  rdfs:subClassOf obo:VT_0005300 , obo:VT_0005543 .

obo:VT_0000662 a rdfs:Class ;
  rdfs:label "mammary ductal tree branching trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the development of the channels that secrete milk and direct milk to the nipple." ;
  rdfs:subClassOf obo:VT_0000628 .

obo:VT_0010471 a rdfs:Class ;
  rdfs:label "exploratory behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions in tests for exploratory related behaviors." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0001450 a rdfs:Class ;
  rdfs:label "vestibular hair bundle inter-stereocilial link morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure or pattern of the morphologically and biochemically distinct link types that extend between the stereocilia of vestibular hair bundles." ;
  rdfs:subClassOf obo:VT_0001445 .

obo:VT_0003160 a rdfs:Class ;
  rdfs:label "esophagus development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the part of the digestive canal through which food passes from the pharynx to the stomach during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003119 .

obo:VT_0002399 a rdfs:Class ;
  rdfs:label "pluripotent precursor cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells that give rise to most types of cells necessary for fetal development." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0010528 a rdfs:Class ;
  rdfs:label "avoidance learning behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the actions or reactions of an organism pertaining to the ability to associate a previously neutral stimulus with an unpleasant or punishing stimulus so that the animal learns to avoid the previously neutral stimulus." ;
  rdfs:subClassOf obo:VT_0010527 .

obo:VT_0010903 a rdfs:Class ;
  rdfs:label "blood carbohydrate or carbohydrate derivative amount" ;
  rdfs:comment "The proportion, quantity, or volume of any organooxygen compound that is a polyhydroxy-aldehyde or -ketone, or a compound derived from one. Carbohydrates contain only carbon, hydrogen and oxygen and usually have an empirical formula Cm(H2O)n; carbohydrate derivatives may contain other elements by substitution or condensation." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010643 a rdfs:Class ;
  rdfs:label "iliac artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the arteries that arise from a bifurcation of the aorta supplying the pelvis or abdomen." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0010412 a rdfs:Class ;
  rdfs:label "chorionic gonadotropin secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of this glycoprotein produced by trophoblastic cells originating from the placenta." ;
  rdfs:subClassOf obo:VT_0010411 .

obo:VT_0010362 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-12,trans-14-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-12 and C-14." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0011325 a rdfs:Class ;
  rdfs:label "cingulate cortex ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in a part of the brain situated in the medial aspect of the cortex. It is extended from the corpus callosum below to the cingulate sulcus above, at least anteriorly. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011255 .

obo:VT_0010183 a rdfs:Class ;
  rdfs:label "platelet morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of disc-like fragments of megakaryocytes that are found in the blood and function in clotting." ;
  rdfs:subClassOf obo:VT_0002429 .

obo:VT_0000962 a rdfs:Class ;
  rdfs:label "obsolete dorsal root ganglion organization trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the segmentation pattern of one or more dorsal root ganglia." .

obo:VT_0001106 a rdfs:Class ;
  rdfs:label "Schwann cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells which form the insulating myelin sheaths of peripheral axons." ;
  rdfs:subClassOf obo:VT_0001105 .

obo:VT_0006102 a rdfs:Class ;
  rdfs:label "tegmentum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the floor of the midbrain which extends from the substantia nigra to the level of the cerebral aqueduct." ;
  rdfs:subClassOf obo:VT_0006100 .

obo:VT_0003656 a rdfs:Class ;
  rdfs:label "erythrocyte physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cells in the blood that carry oxygen, red blood cells." ;
  rdfs:subClassOf obo:VT_0010249 .

obo:VT_0002362 a rdfs:Class ;
  rdfs:label "spleen marginal zone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the zone between the red and white pulp of the spleen containing numerous macrophages and lymphocytes, and a rich plexus of sinusoids supplied by white pulp arterioles carrying blood-borne antigens." ;
  rdfs:subClassOf obo:VT_0002357 .

obo:VT_0010762 a rdfs:Class ;
  rdfs:label "catalase activity" ;
  rdfs:comment "The degree of function or response of this enzyme that converts the reactive oxygen species hydrogen peroxide to water and oxygen." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0010993 a rdfs:Class ;
  rdfs:label "blood 1-methylhistidine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a methylhistidine in which the methyl group is located at N-1." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0010824 a rdfs:Class ;
  rdfs:label "milk iodine amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this nonmetallic element of the halogen group, which is especially important in thyroid hormone synthesis." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0004269 a rdfs:Class ;
  rdfs:label "optic cup morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the double walled structure formed by expansion and invagination of the distal end of the optic vesicle that develops into the pigmented and sensory layers of the retina; the mouth of the optic cup eventually forms the pupil of the eye." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0003936 a rdfs:Class ;
  rdfs:label "reproductive system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organs involved in the production of offspring." ;
  rdfs:subClassOf obo:VT_0005389 .

obo:VT_0004273 a rdfs:Class ;
  rdfs:label "basal lamina morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sheet of extracellular matrix characteristically situated under epithelial cells, around muscles, nerves, capillaries, and fat cells, and situated between these elements and the underlying or surrounding connective tissue." ;
  rdfs:subClassOf obo:VT_0004272 .

obo:VT_0005403 a rdfs:Class ;
  rdfs:label "nerve conduction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the act of transmitting electricity along a single nerve." ;
  rdfs:subClassOf obo:VT_0002272 .

obo:VT_0001085 a rdfs:Class ;
  rdfs:label "petrosal ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the inferior of two sensory ganglia on the glossopharyngeal nerve immediately inferior to its exit from the jugular formamen." ;
  rdfs:subClassOf obo:VT_0001084 .

obo:VT_0002823 a rdfs:Class ;
  rdfs:label "rib development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the bones forming the bony wall of the chest." ;
  rdfs:subClassOf obo:VT_0010005 , obo:VT_0015061 .

obo:VT_0010245 a rdfs:Class ;
  rdfs:label "omasum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the third forestomach of ruminants which connects the reticulum to the abomasum." ;
  rdfs:subClassOf obo:VT_0010235 .

obo:VT_0010397 a rdfs:Class ;
  rdfs:label "milk fat globule-EGF factor 8 protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this integrin-binding protein found in milk fat globules." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0003471 a rdfs:Class ;
  rdfs:label "summary potential threshold" ;
  rdfs:comment "The point at which a stimulus first elicits a recordable response recorded in several cells or a tissue slice." ;
  rdfs:subClassOf obo:VT_0003470 .

obo:VT_0005206 a rdfs:Class ;
  rdfs:label "aqueous humor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the clear, watery fluid that fills the anterior and possibly posterior chambers of the eye." ;
  rdfs:subClassOf obo:VT_0005205 .

obo:VT_0010401 a rdfs:Class ;
  rdfs:label "ovarian follicle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the ovarian structure containing an oocyte." ;
  rdfs:subClassOf obo:VT_0001131 .

obo:VT_0005086 a rdfs:Class ;
  rdfs:label "bile amount" ;
  rdfs:comment "The proportion, quantity, or volume of the bitter, alkaline, brownish-yellow or greenish-yellow fluid that is secreted by the liver, stored in the gallbladder, and discharged into the duodenum and aids in the emulsification, digestion, and absorption of fats." ;
  rdfs:subClassOf obo:VT_0005084 .

obo:VT_0001323 a rdfs:Class ;
  rdfs:label "inner hair cell stereocilia size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the nonmotile, actin-filled specialized microvilli (stereocilia) normally arrayed on cochlear inner hair cells." ;
  rdfs:subClassOf obo:VT_0000894 , obo:VT_0001180 .

obo:VT_0001225 a rdfs:Class ;
  rdfs:label "epidermis development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the superficial epithelial portion of the skin during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003941 .

obo:VT_0011354 a rdfs:Class ;
  rdfs:label "wattle length" ;
  rdfs:comment "The distance from point to point along the longest axis of the fleshy dewlap or caruncle hanging from various parts of the head or neck in several groups of birds, goats, and other animals." ;
  rdfs:subClassOf obo:VT_0011352 .

obo:VT_0005448 a rdfs:Class ;
  rdfs:label "energy balance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the equilibrium between intake and expenditure of calories." ;
  rdfs:subClassOf obo:VT_0010637 .

obo:VT_0003949 a rdfs:Class ;
  rdfs:label "blood lipid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of fat-soluble substances (molecules composed of carbon and hydrogen and are characteristically insoluble in water)." ;
  rdfs:subClassOf obo:VT_0001547 , obo:VT_0010931 .

obo:VT_0000189 a rdfs:Class ;
  rdfs:label "blood vessel distensibility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the blood vessels (tubular channels through which the blood circulates) to stretch." ;
  rdfs:subClassOf obo:VT_0000170 .

obo:VT_0001140 a rdfs:Class ;
  rdfs:label "vagina epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial layer of the vagina." ;
  rdfs:subClassOf obo:VT_0001139 .

obo:VT_0002869 a rdfs:Class ;
  rdfs:label "blood anti-insulin autoantibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies to insulin." ;
  rdfs:subClassOf obo:VT_0003725 .

obo:VT_0003328 a rdfs:Class ;
  rdfs:label "portal blood pressure" ;
  rdfs:comment "The arterial blood pressure in the hepatic portal system." ;
  rdfs:subClassOf obo:VT_0000609 .

obo:VT_0000431 a rdfs:Class ;
  rdfs:label "palatine shelf morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the outgrowth of the palatine bone; normally fuses with maxillary shelf to form secondary palate." ;
  rdfs:subClassOf obo:VT_0005249 .

obo:VT_0002462 a rdfs:Class ;
  rdfs:label "granulocyte physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in leukocytes that have abundant granules in the cytoplasm, including basophils, neutrophils, and eosinophils." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0000544 a rdfs:Class ;
  rdfs:label "urinary bladder transitional epithelium thickness" ;
  rdfs:comment "The distance between the surfaces of the transitional epithelial layer (stratified epithelium with large, polyploid superfical cells that are dome-shaped when relaxed, but broad and flattened when distended) of the distensible musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0000541 .

obo:VT_0005329 a rdfs:Class ;
  rdfs:label "heart muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the striated, involuntary muscle comprising the myocardium." ;
  rdfs:subClassOf obo:VT_0000266 , obo:VT_0002108 .

obo:VT_0010039 a rdfs:Class ;
  rdfs:label "adrenergic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers of the autonomic nervous system that use norepinephrine as their neurotransmitter." ;
  rdfs:subClassOf obo:VT_0010142 .

obo:VT_0010745 a rdfs:Class ;
  rdfs:label "heart left ventricle integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003921 , obo:VT_0010757 .

obo:VT_0002446 a rdfs:Class ;
  rdfs:label "macrophage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large mononuclear phagocytes which differentiate from monocytes, are typically resident in a particular tissue, and are capable of phagocytosing a variety of extracellular particulate material, including immune complexes, microorganisms, and dead cells." ;
  rdfs:subClassOf obo:VT_0008195 , obo:VT_0008246 , obo:VT_0008248 .

obo:VT_0001985 a rdfs:Class ;
  rdfs:label "gustatory system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to a function of or process in the organs involved in the perception of taste." ;
  rdfs:subClassOf obo:VT_0015065 .

obo:VT_0002160 a rdfs:Class ;
  rdfs:label "reproductive system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the organs or tissues involved in the production of offspring." ;
  rdfs:subClassOf obo:VT_0005389 .

obo:VT_0000871 a rdfs:Class ;
  rdfs:label "cerebellum vermis lobule IX morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the triangular elevation on the vermis of the cerebellum." ;
  rdfs:subClassOf obo:VT_0015085 .

obo:VT_0010314 a rdfs:Class ;
  rdfs:label "milk fatty acid C12:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a twelve-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0002384 a rdfs:Class ;
  rdfs:label "nasopharyngeal tonsil morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph tissue in the roof and posterior wall of the nasopharynx." ;
  rdfs:subClassOf obo:VT_0002379 .

obo:VT_0010003 a rdfs:Class ;
  rdfs:label "bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of osseous tissue forming a part of the skeleton; consists of a dense outer layer surrounded by the periosteum, and an inner spongy substance." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0000363 a rdfs:Class ;
  rdfs:label "cochlear microphonics trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the bioelectric potentials produced by the hair cells of the organ of Corti in response to sound; the cochlear microphonic (CM) is an electric response dominated by OHC receptor potentials from the basal turn of the cochlea and provides a measure of transducer function in OHCs; in an active ear, CM waveforms show post-stimulus ringing (i.e. a cochlear echo) whereas in a passive ear system, CM decays at the cessation of the tone burst." ;
  rdfs:subClassOf obo:VT_0004412 , obo:VT_0004434 .

obo:VT_0002184 a rdfs:Class ;
  rdfs:label "innervation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement, distribution or supply of the connection of nerve fibers to a target tissue or cell." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0001781 a rdfs:Class ;
  rdfs:label "white adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of the connective tissue consisting of fat-storing cells and arranged in lobular groups or along minor blood vessels." ;
  rdfs:subClassOf obo:VT_0002970 , obo:VT_0005452 .

obo:VT_0100026 a rdfs:Class ;
  rdfs:label "mammary gland cistern capacity" ;
  rdfs:comment "The volume of or amount contained in the largest area for milk accumulation in the ductal system of the mammary gland in some species." ;
  rdfs:subClassOf obo:VT_0010002 , obo:VT_0100025 .

obo:VT_0003522 a rdfs:Class ;
  rdfs:label "labia minora size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the folds of skin which form the inner lips (labia minora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003512 , obo:VT_0003520 .

obo:VT_0009334 a rdfs:Class ;
  rdfs:label "splenocyte proliferation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the splenocyte cell population undergoes expansion by cell division." ;
  rdfs:subClassOf obo:VT_0009333 .

obo:VT_0009920 a rdfs:Class ;
  rdfs:label "transitional stage T2 B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a type of transitional stage B cell that has the phenotype surface IgM-positive, surface IgD-positive, CD21-positive, CD23-positive, CD62L-negative, and is located in the splenic B follicles." ;
  rdfs:subClassOf obo:VT_0008188 .

obo:VT_0100015 a rdfs:Class ;
  rdfs:label "circulatory system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the system that moves extracellular fluids to and from tissues during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_1000784 .

obo:VT_0011262 a rdfs:Class ;
  rdfs:label "inner ear molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the labyrinth, including the semicircular canals, vestibule and cochlea." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0005217 a rdfs:Class ;
  rdfs:label "pancreatic beta cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells of the pancreas that secrete insulin." ;
  rdfs:subClassOf obo:VT_0005215 .

obo:VT_0008595 a rdfs:Class ;
  rdfs:label "blood interleukin-6 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine that stimulates the growth and differentiation of B-cells and is also a growth factor for hybridomas and plasmacytomas, and is produced by many different cells including T-cells, monocytes and fibroblasts." ;
  rdfs:subClassOf obo:VT_0008588 , obo:VT_0010035 .

obo:VT_0010508 a rdfs:Class ;
  rdfs:label "neurocranium mass" ;
  rdfs:comment "The amount of matter in the bones of the skull enclosing the brain." ;
  rdfs:subClassOf obo:VT_0010517 .

obo:VT_0011143 a rdfs:Class ;
  rdfs:label "lymphatic vessel molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or ther substances in the lymphatic vessels, vessels that contain or convey lymph, that originate as an interfibrillar or intercellular cleft or space in a tissue or organ." ;
  rdfs:subClassOf obo:VT_0001879 .

obo:VT_0010513 a rdfs:Class ;
  rdfs:label "blood ferritin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this ubiquitous intracellular protein that stores iron and releases it in a controlled fashion." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0003847 a rdfs:Class ;
  rdfs:label "obsolete lens bow organization trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the arrangement of the area where the lens epithelium pushes into the lens proper and forms new lens fibers." .

obo:VT_0010187 a rdfs:Class ;
  rdfs:label "Meissner's corpuscle nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers to any part of the numerous oval bodies found in the dermal papillae of thick skin and which are believed to be mechanoreceptors for tactile sensation." ;
  rdfs:subClassOf obo:VT_0000982 .

obo:VT_0000905 a rdfs:Class ;
  rdfs:label "superior colliculus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the paired superior eminence of the mesencephalic tectum." ;
  rdfs:subClassOf obo:VT_0000900 , obo:VT_0000904 .

obo:VT_0010813 a rdfs:Class ;
  rdfs:label "heart left ventricle interstitial bradykinin amount" ;
  rdfs:comment "The proportion, quantity, or volume of interstitial bradykinin, a linear nonapeptide messenger belonging to the kinin group of proteins, in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010561 .

obo:VT_0010788 a rdfs:Class ;
  rdfs:label "blood alpha-N-acetylgalactosaminidase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of alpha-N-acetylgalactosaminidase,  a  lysosomal enzyme involved in the degradation of blood type A epitope." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0003942 a rdfs:Class ;
  rdfs:label "urinary system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organs involved in the production or excretion of urine." ;
  rdfs:subClassOf obo:VT_1000777 .

obo:VT_0002236 a rdfs:Class ;
  rdfs:label "internal nares morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the opening of the nasal cavity into the nasal pharynx." ;
  rdfs:subClassOf obo:VT_0002233 .

obo:VT_0008195 a rdfs:Class ;
  rdfs:label "antigen presenting cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a cell capable of processing and presenting lipid and protein antigens to T cells in order to initiate an immune response." ;
  rdfs:subClassOf obo:VT_0000716 .

obo:VT_0001301 a rdfs:Class ;
  rdfs:label "inner hair cell stereocilia quantity" ;
  rdfs:comment "The proportion or numbers of the nonmotile, actin-filled specialized microvilli (stereocilia) normally arrayed on the inner sensory epithelial cells of the cochlea, which are normally in synaptic contact with the auditory nerve." ;
  rdfs:subClassOf obo:VT_0000893 , obo:VT_0001180 .

obo:VT_0008674 a rdfs:Class ;
  rdfs:label "interleukin-15 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine that stimulates the proliferation of T-cells and can induce proliferation and differentiation of B-cells; interleukin-15 shares biological activities with interleukin-2." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0010728 a rdfs:Class ;
  rdfs:label "discrimination learning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to exhibit a differential response to different stimuli that is achieved by the reinforcement of the desired response for each particular stimulus." ;
  rdfs:subClassOf obo:VT_0002063 .

obo:VT_0010892 a rdfs:Class ;
  rdfs:label "heart right ventricular blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood pressure in the lower right chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010749 .

obo:VT_0008555 a rdfs:Class ;
  rdfs:label "interferon secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of proteins secreted by vertebrate cells in response to a wide variety of inducers; they confer resistance against many different viruses, inhibit proliferation of normal and malignant cells, impede multiplication of intracellular parasites, enhance macrophage and granulocyte phagocytosis, augment natural killer cell activity, and show several other immunomodulatory functions." ;
  rdfs:subClassOf obo:VT_0003009 .

obo:VT_0010802 a rdfs:Class ;
  rdfs:label "thymus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0000703 .

obo:VT_0003633 a rdfs:Class ;
  rdfs:label "nervous system physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the components of the system responsible for receiving and processing information about an organism's environment and controlling behavior." ;
  rdfs:subClassOf obo:VT_1000781 .

obo:VT_0100021 a rdfs:Class ;
  rdfs:label "mammary alveoli size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the sac-like structure of the mammary gland that synthesizes and secretes milk after pregnancy." ;
  rdfs:subClassOf obo:VT_0001884 , obo:VT_0010002 .

obo:VT_0000374 a rdfs:Class ;
  rdfs:label "cochlear frequency tuning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the frequency resolution of the cochlea, normally determined by the passive mechanical properties of the basilar membrane and active feedback from the outer hair cells which detect and amplify sound-induced basilar membrane motions." ;
  rdfs:subClassOf obo:VT_0000365 , obo:VT_0000483 .

obo:VT_0010466 a rdfs:Class ;
  rdfs:label "prostate mass" ;
  rdfs:comment "The amount of matter in the gland surrounding the beginning of the urethra in males that secretes part of the seminal fluid." ;
  rdfs:subClassOf obo:VT_0000659 .

obo:VT_0002473 a rdfs:Class ;
  rdfs:label "complement classical pathway physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the plasma protein cascade triggered by antigen:antibody complexes." ;
  rdfs:subClassOf obo:VT_0002471 .

obo:VT_0003159 a rdfs:Class ;
  rdfs:label "esophageal smooth muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nonstriated, involuntary muscle tissue lining the portion of the alimentary canal between the pharynx and stomach." ;
  rdfs:subClassOf obo:VT_0000767 .

obo:VT_0015077 a rdfs:Class ;
  rdfs:label "molecule homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the an internal equilibrium of proteins, minerals, nutrients, gases, or other substances." ;
  rdfs:subClassOf obo:VT_0001764 .

obo:VT_0003842 a rdfs:Class ;
  rdfs:label "metopic suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the articulation of the frontal bone from the sagittal suture to the root of the nose." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0002356 a rdfs:Class ;
  rdfs:label "spleen red pulp morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the parenchymatous tissue network of the spleen that consists of loose plates or cords (sinuses) infiltrated with red blood cells where most of the blood filtration occurs and degenerate erythrocytes are removed from the circulation." ;
  rdfs:subClassOf obo:VT_0000689 .

obo:VT_0010278 a rdfs:Class ;
  rdfs:label "milk prolactin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the hormone that stimulates milk secretion." ;
  rdfs:subClassOf obo:VT_0010275 .

obo:VT_0004316 a rdfs:Class ;
  rdfs:label "saccule size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to physical magnitude of the smaller of the two sacs in the vestibule." ;
  rdfs:subClassOf obo:VT_0006089 .

obo:VT_0003346 a rdfs:Class ;
  rdfs:label "pectoralis muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the two muscles that make up the upper and fore part of the chest that adduct and rotate the forelimb and lift the ribs." ;
  rdfs:subClassOf obo:VT_0000759 .

obo:VT_0005342 a rdfs:Class ;
  rdfs:label "lipid absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in fat-soluble substances (molecules composed of carbon and hydrogen and characteristically insoluble in water)." ;
  rdfs:subClassOf obo:VT_0001666 , obo:VT_0002118 .

obo:VT_0010907 a rdfs:Class ;
  rdfs:label "blood copper amount" ;
  rdfs:comment "The proportion, quantity, or volume in blood of this metallic element that has formula Cu, and normally occurs as a cofactor for a number of proteins including amine oxidases and chaperone proteins." ;
  rdfs:subClassOf obo:VT_0000068 , obo:VT_0003952 .

obo:VT_0011031 a rdfs:Class ;
  rdfs:label "blood ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the cell-containing fluid that circulates through the body, carrying nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues and taking away waste matter and carbon dioxide. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0002361 a rdfs:Class ;
  rdfs:label "spleen central arteriole morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the blood vessel surrounded by the periarteriolar lymphoid sheath that connects the trabecular artery to the trabecular vein." ;
  rdfs:subClassOf obo:VT_0002357 , obo:VT_0010929 .

obo:VT_1000000 a rdfs:Class ;
  rdfs:label "body conformation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the symmetry, size and shape of the various body regions relative to each other or general appearance of an organism." ;
  rdfs:subClassOf obo:VT_0100006 .

obo:VT_0011270 a rdfs:Class ;
  rdfs:label "oocyte molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the female germ cell that has entered meiosis." ;
  rdfs:subClassOf obo:VT_0001125 .

obo:VT_0000598 a rdfs:Class ;
  rdfs:label "liver morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0002138 .

obo:VT_0010261 a rdfs:Class ;
  rdfs:label "milk fat amount" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportion, quantity, or volume of butterfat present in milk." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0003576 a rdfs:Class ;
  rdfs:label "oviduct size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the tube through which the ova pass from the ovary to the uterus (mammals) or to the outside (fish, birds)." ;
  rdfs:subClassOf obo:VT_0003574 .

obo:VT_0010861 a rdfs:Class ;
  rdfs:label "medulla oblongata serotonin amount" ;
  rdfs:comment "The proportion, quantity or volume in the medulla oblongata (the region of the brainstem that lies directly above the spinal cord and controls vital autonomic functions) of  a monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0010838 , obo:VT_0010876 , obo:VT_0011252 .

obo:VT_0010351 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-7,cis-9-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a trans double bond at C-7, and a cis double bond at C-9." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0000452 a rdfs:Class ;
  rdfs:label "mouth morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the oral cavity." ;
  rdfs:subClassOf obo:VT_0003744 .

obo:VT_0004107 a rdfs:Class ;
  rdfs:label "thoracic duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the largest lymph vessel in the body, beginning at the cisterna chyli at about the level of the second lumbar vertebra." ;
  rdfs:subClassOf obo:VT_0001879 .

obo:VT_0010317 a rdfs:Class ;
  rdfs:label "milk fatty acid C17:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a seventeen-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0010548 a rdfs:Class ;
  rdfs:label "joint integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the articulation point of two or more rigid skeletal components (bones, cartilage, or parts of a single bone)." ;
  rdfs:subClassOf obo:VT_0002932 , obo:VT_0011175 .

obo:VT_0008607 a rdfs:Class ;
  rdfs:label "blood interleukin-13 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine synthesized by T-cells that produces proliferation, immunoglobulin isotype switching, and immunoglobulin production by immature B-cells, and appears to play a role in regulating inflammatory and immune responses." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0010267 a rdfs:Class ;
  rdfs:label "milk whey acidic protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of whey acidic protein (WAP), a major protein of whey in rodents and rabbits (as well as marsupials), which belongs to the four disulfide core family." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0006280 a rdfs:Class ;
  rdfs:label "digit development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the digits during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000572 .

obo:VT_0011332 a rdfs:Class ;
  rdfs:label "CD3-negative, CD8-positive T cell quantity" ;
  rdfs:comment "The proportion or number of T lymphocytes that are negative for the CD3 T-cell co-receptor complex and positive for the CD8 glycoprotein." ;
  rdfs:subClassOf obo:VT_0011214 .

obo:VT_0010791 a rdfs:Class ;
  rdfs:label "brain ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the brain. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010585 .

obo:VT_0001312 a rdfs:Class ;
  rdfs:label "cornea morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the transparent anterior portion of the fibrous coat of the eye that serves as the chief refractory structure." ;
  rdfs:subClassOf obo:VT_0005193 .

obo:VT_1000704 a rdfs:Class ;
  rdfs:label "mammary gland length" ;
  rdfs:comment "The distance from point to point along the longest axis of the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0010002 .

obo:VT_0010751 a rdfs:Class ;
  rdfs:label "response to methylenedioxymethamphetamine trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of methylenedioxymethamphetamine exposure (also known as MDMA or Ecstasy)." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0010036 a rdfs:Class ;
  rdfs:label "C-reactive protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of this plasma protein that normally circulates in increased amounts during inflammation or after tissue damage." ;
  rdfs:subClassOf obo:VT_0010035 .

obo:VT_0011101 a rdfs:Class ;
  rdfs:label "tongue ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in  the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011100 .

obo:VT_0000652 a rdfs:Class ;
  rdfs:label "sebaceous gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the holocrine glands of the dermis that secrete sebum." ;
  rdfs:subClassOf obo:VT_0000647 .

obo:VT_1000480 a rdfs:Class ;
  rdfs:label "intramuscular adipose mass" ;
  rdfs:comment "The amount of matter in the fat-storing cells/tissue present within skeletal muscle." ;
  rdfs:subClassOf obo:VT_0010017 , obo:VT_0010044 .

obo:VT_0015002 a rdfs:Class ;
  rdfs:label "interscapular fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue located between the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0015108 a rdfs:Class ;
  rdfs:label "neurite morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neuronal process, either a dendrite or an axon in vivo, or a filamentous projection from a neuron such as is seen in tissue culture." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0000334 a rdfs:Class ;
  rdfs:label "granulocyte quantity" ;
  rdfs:comment "The proportion or number of leukocytes that have abundant granules in the cytoplasm, including basophils, neutrophils, and eosinophils." ;
  rdfs:subClassOf obo:VT_0000217 , obo:VT_0002441 .

obo:VT_0003756 a rdfs:Class ;
  rdfs:label "hard palate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the anterior part of the palate that is supported by and includes the palatal extensions of the maxillary and palatine bones." ;
  rdfs:subClassOf obo:VT_0003755 .

obo:VT_0003947 a rdfs:Class ;
  rdfs:label "cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the body of these most abundant steroids in animal tissues, and precursors to steroid hormones and bile salts; also components of plasma membranes." ;
  rdfs:subClassOf obo:VT_0001547 , obo:VT_0005278 , obo:VT_0010581 .

obo:VT_0010458 a rdfs:Class ;
  rdfs:label "outer ear area" ;
  rdfs:comment "The two-dimensional extent of any of the components of the auricles or external acoustic meatus." ;
  rdfs:subClassOf obo:VT_0000017 .

obo:VT_0010661 a rdfs:Class ;
  rdfs:label "hoof pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the tip of a toe of an ungulate mammal, strengthened by a thick horny (keratin) covering. The hoof consists of a hard or rubber sole and a hard wall formed by a thick nail rolled around the tip of the toe." ;
  rdfs:subClassOf obo:VT_0011223 .

obo:VT_0001076 a rdfs:Class ;
  rdfs:label "hypoglossal nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of motor axons to the tongue." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0011042 a rdfs:Class ;
  rdfs:label "small intestine ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the upper portion of the digestive tract, between the stomach and the large intestine. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011041 .

obo:VT_0011159 a rdfs:Class ;
  rdfs:label "striatum ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the striatum of the brain. The striatum region of the forebrain consists of the caudate nucleus, putamen, and fundus striati. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0004077 , obo:VT_0011257 .

obo:VT_4000012 a rdfs:Class ;
  rdfs:label "mucous gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the glands that secret mucous." ;
  rdfs:subClassOf obo:VT_0002163 .

obo:VT_0004020 a rdfs:Class ;
  rdfs:label "amniotic fluid amount" ;
  rdfs:comment "The proportion, quantity, or volume of the liquid that envelops the fetus inside the amniotic sac." ;
  rdfs:subClassOf obo:VT_0001784 .

obo:VT_0003618 a rdfs:Class ;
  rdfs:label "cervical opening size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cervical opening." ;
  rdfs:subClassOf obo:VT_0001135 .

obo:VT_0002630 a rdfs:Class ;
  rdfs:label "endocochlear potential trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the electrical potential difference between the endolymphatic and perilymphatic compartments of the cochlea." ;
  rdfs:subClassOf obo:VT_0000319 , obo:VT_0000365 , obo:VT_0000483 .

obo:VT_0004288 a rdfs:Class ;
  rdfs:label "spiral ligament morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thickened periosteal lining of the bony cochlea that forms the outer wall of the cochlear duct to which the basal lamina attaches." ;
  rdfs:subClassOf obo:VT_0003169 .

obo:VT_0000977 a rdfs:Class ;
  rdfs:label "obsolete hair-tylotrich neuron morphology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the shape, structure, color, or pattern of the subcutaneous mechanoreceptors that innervate tylotrich hair follicles." .

obo:VT_0011190 a rdfs:Class ;
  rdfs:label "blood estrone sulfate amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this steroid that is the 3-sulfate of estrone." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0007082 a rdfs:Class ;
  rdfs:label "heart ventricle septum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the wall between the lower chambers of the heart." ;
  rdfs:subClassOf obo:VT_0005294 , obo:VT_0006113 .

obo:VT_0011127 a rdfs:Class ;
  rdfs:label "blood IDL triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume of triglyceride found in the intermediate density lipoprotein fraction of whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0002644 .

obo:VT_0000800 a rdfs:Class ;
  rdfs:label "prefrontal gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the frontal lobe that is involved with integration of voluntary movements and with speech." ;
  rdfs:subClassOf obo:VT_0000798 .

obo:VT_0003356 a rdfs:Class ;
  rdfs:label "luteinization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the transformation of the mature ovarian follicle and its theca interna into a corpus luteum after ovulation." ;
  rdfs:subClassOf obo:VT_0003507 .

obo:VT_0004162 a rdfs:Class ;
  rdfs:label "mammillary body morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the protrusion at the posterior end of the hypothalamus that contains hypothalamic nuclei." ;
  rdfs:subClassOf obo:VT_0000830 .

obo:VT_0010627 a rdfs:Class ;
  rdfs:label "blood vitamin A amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any of the vitamin A compounds, retinol, retinal (retinaldehyde), and retinoic acid, all of which are derivatives of beta-carotene." ;
  rdfs:subClassOf obo:VT_0010626 .

obo:VT_0003938 a rdfs:Class ;
  rdfs:label "ear development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the organ of hearing, responsible for maintaining equilibrium as well as sensing sound, during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0015047 .

obo:VT_0003818 a rdfs:Class ;
  rdfs:label "eye muscle development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the muscles of the organ of vision during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000733 , obo:VT_0001286 .

obo:VT_0002424 a rdfs:Class ;
  rdfs:label "reticulocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the immature erythrocytes containing a basophilic cytoplasmic network." ;
  rdfs:subClassOf obo:VT_0010263 .

obo:VT_0002136 a rdfs:Class ;
  rdfs:label "kidney physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0005502 .

obo:VT_0008054 a rdfs:Class ;
  rdfs:label "uterine natural killer cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the uterine subset of the non-T, non-B lymphocytes, having a granular morphology and which are important in innate immunity to viruses and other intracellular pathogens; uNK cells contribute to uterine decidualization and are recruited to implantation sites." ;
  rdfs:subClassOf obo:VT_0001120 .

obo:VT_0011140 a rdfs:Class ;
  rdfs:label "superior cervical ganglion ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the group of neurons that is the largest of the sympathetic trunk; normally lies at the base of the skull and innervates the head and neck. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011139 .

obo:VT_0000497 a rdfs:Class ;
  rdfs:label "small intestine orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the small intestinal tract in relation to other organs or to the body." ;
  rdfs:subClassOf obo:VT_0000496 , obo:VT_0003283 .

obo:VT_0010482 a rdfs:Class ;
  rdfs:label "body fat mass" ;
  rdfs:comment "The amount of matter in the body of an organism that is fat or adipose tissue." ;
  rdfs:subClassOf obo:VT_0001259 .

obo:VT_0003673 a rdfs:Class ;
  rdfs:label "inguinal canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the passage in the lower abdominal wall through which the spermatic cord in the male or the round ligament in the female, nerves and vessels pass from the pelvic cavity to the scrotum or labia majora, respectively." ;
  rdfs:subClassOf obo:VT_0002160 .

obo:VT_0010177 a rdfs:Class ;
  rdfs:label "obsolete factor B physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, factor B." .

obo:VT_0010885 a rdfs:Class ;
  rdfs:label "urine urotensin II amount" ;
  rdfs:comment "The proportion, quantity, or volume of urotensin II in a specified volume of urine." ;
  rdfs:subClassOf obo:VT_0005160 .

obo:VT_0010493 a rdfs:Class ;
  rdfs:label "heart left atrium diameter" ;
  rdfs:comment "The distance across the left upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000012 .

obo:VT_0015008 a rdfs:Class ;
  rdfs:label "total fat pad mass" ;
  rdfs:comment "The total amount of matter in all of the encapsulated adipose tissue in the body." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0002576 a rdfs:Class ;
  rdfs:label "enamel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the hard outer coating of the exposed portion of the tooth." ;
  rdfs:subClassOf obo:VT_0003930 .

obo:VT_0001052 a rdfs:Class ;
  rdfs:label "obsolete muscle innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of sensory or motor nerve fibers to targets in the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body.
consider: VT:0010189, VT:0010262""" .

obo:VT_0004074 a rdfs:Class ;
  rdfs:label "Schwann cell precursor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the progenitors of cells that sheath the axons of the peripheral nervous system." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0001770 a rdfs:Class ;
  rdfs:label "iron amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of this metallic element that normally occurs in the heme of hemoglobin, myoglobin, transferrin, ferritin, and iron-containing porphyrins; it is an essential component of enzymes such as catalase, peroxidase, and various cytochromes." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0005637 .

obo:VT_0008698 a rdfs:Class ;
  rdfs:label "interleukin-4 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a soluble factor produced by activated T-cells that induces the expression of MHC class II genes and FC receptors on B-cells and causes their proliferation and differentiation; it also acts on T-cells, mast cells and several other hematopoietic lineage cells." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0010712 a rdfs:Class ;
  rdfs:label "milk manganese amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this metallic element that resembles iron." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0011025 a rdfs:Class ;
  rdfs:label "skin ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the membranous protective covering of the body. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010737 .

obo:VT_0008766 a rdfs:Class ;
  rdfs:label "B cell receptor editing trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of replacing receptors on B cells, in which RAG gene expression allows continued light-chain gene rearrangement and expression of a new light chain which combines with the previous heavy chain to form a new receptor." ;
  rdfs:subClassOf obo:VT_0002144 .

obo:VT_0011251 a rdfs:Class ;
  rdfs:label "amygdala ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the almond-shaped body of basal nuclei anterior to the inferior horn of the lateral ventricle of the brain, within the temporal lobe; this area is involved in aggression and fear responses. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0000818 , obo:VT_0011259 .

obo:VT_0006168 a rdfs:Class ;
  rdfs:label "epicanthal fold morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of fold of skin of the upper eyelid that partially covers the inner corner of the eye." ;
  rdfs:subClassOf obo:VT_0001340 .

obo:VT_0011132 a rdfs:Class ;
  rdfs:label "right pulmonary vein morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the right pulmonary vein, the vein that drains the right lung and returns blood to the heart." ;
  rdfs:subClassOf obo:VT_0002726 .

obo:VT_0010632 a rdfs:Class ;
  rdfs:label "carbohydrate metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving carbohydrates (substances composed of carbon, hydrogen, and oxygen according to the general formula Cn(H2O)n)." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0003796 a rdfs:Class ;
  rdfs:label "obsolete cortical bone morphology trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the shape, structure, color, or pattern of the superficial thin layer of compact bone.
Replace with VT:0003797.""" .

obo:VT_0002769 a rdfs:Class ;
  rdfs:label "vas deferens morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the secretory duct of the testicle that carries spermatozoa, running from the epididymis, of which it is the continuation, to the prostatic urethra, where it terminates to form the ejaculatory duct." ;
  rdfs:subClassOf obo:VT_0001145 .

obo:VT_0009323 a rdfs:Class ;
  rdfs:label "spleen development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organ that filters blood and stores red corpuscles and platelets." ;
  rdfs:subClassOf obo:VT_0002450 , obo:VT_0010255 .

obo:VT_3000000 a rdfs:Class ;
  rdfs:label "platelet adhesion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of platelets sticking to exposed extracellular matrix proteins." ;
  rdfs:subClassOf obo:VT_0000260 .

obo:VT_0004432 a rdfs:Class ;
  rdfs:label "cochlear hair cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cochlear hair cells, i.e., the sensory cells in the spiral organ which are in synaptic contact with sensory as well as efferent fibers of the cochlear (auditory) nerve." ;
  rdfs:subClassOf obo:VT_0003879 .

obo:VT_1000575 a rdfs:Class ;
  rdfs:label "longissimus thoracis muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the muscle of the back which is the intermediate and largest of the continuations of the Sacrospinalis." ;
  rdfs:subClassOf obo:VT_0010117 .

obo:VT_1000726 a rdfs:Class ;
  rdfs:label "back conformation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of an organism's back, neck, and area between the shoulder blades, known as the withers in some animals." ;
  rdfs:subClassOf obo:VT_1000000 .

obo:VT_0002248 a rdfs:Class ;
  rdfs:label "sphenoid sinus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired evaginations of the mucous membrane of the nasal cavity into the air space located within the sphenoid bone, and which opens to the upper posterior nasal cavity." ;
  rdfs:subClassOf obo:VT_0002240 .

obo:VT_0000430 a rdfs:Class ;
  rdfs:label "palatine process morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the medially directed shelves of the maxillae that, with the horizontal plate of the palatine bone, form the bony palate." ;
  rdfs:subClassOf obo:VT_0000455 .

obo:VT_2000007 a rdfs:Class ;
  rdfs:label "obsolete pulmonary blood flow trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the blood flow in the lungs.
consider: VT:0002295""" .

obo:VT_0000955 a rdfs:Class ;
  rdfs:label "spinal cord morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cylindrical tissue of the vertebral canal that extends from the medulla oblongata to the conus medullaris." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0002378 a rdfs:Class ;
  rdfs:label "gut-associated lymphoid tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the regional immune system located in the gut." ;
  rdfs:subClassOf obo:VT_0002722 , obo:VT_0010071 .

obo:VT_0002419 a rdfs:Class ;
  rdfs:label "innate immune response trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter processes in the early phase of the response to infection; normally, it is present at all times, does not increase with exposure to specific pathogens, and does not discriminate between pathogens." ;
  rdfs:subClassOf obo:VT_0010139 .

obo:VT_0008080 a rdfs:Class ;
  rdfs:label "CD8-positive T cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the regulatory subset of T lymphocytes that are involved in MHC class I restricted interactions." ;
  rdfs:subClassOf obo:VT_0002145 .

obo:VT_0003244 a rdfs:Class ;
  rdfs:label "dopaminergic neuron quantity" ;
  rdfs:comment "The proportion or number of neurons that utilize dopamine as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0003243 , obo:VT_0015026 .

obo:VT_0001828 a rdfs:Class ;
  rdfs:label "T cell activation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific." ;
  rdfs:subClassOf obo:VT_0002145 , obo:VT_0002444 .

obo:VT_0004204 a rdfs:Class ;
  rdfs:label "stapes size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the smallest and innermost of the three auditory ossicles." ;
  rdfs:subClassOf obo:VT_0003739 , obo:VT_0005107 .

obo:VT_0011137 a rdfs:Class ;
  rdfs:label "carotid body molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the small epithelioid structure consisting of a small cluster of chemoreceptive and supporting cells located near the bifurcation of the common carotid artery that serves as a chemoreceptive organ that senses the pH, carbon dioxide, and oxygen concentrations in the blood and plays a crucial role in their homeostatic control." ;
  rdfs:subClassOf obo:VT_0003437 .

obo:VT_0010058 a rdfs:Class ;
  rdfs:label "muscle fatty acid C18:3 n-3 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an omega-3, polyunsaturated fatty acid (C18H30O2), with three carbon-carbon double bonds, present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010049 .

obo:VT_0002271 a rdfs:Class ;
  rdfs:label "respiratory alveolar duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the respiratory conducting tubes distal to the respiratory bronchiole that lead to the alveolar sacs and the alveoli." ;
  rdfs:subClassOf obo:VT_0004391 .

obo:VT_0000121 a rdfs:Class ;
  rdfs:label "cardiovascular system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the heart or blood vessels during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0100015 .

obo:VT_0002327 a rdfs:Class ;
  rdfs:label "respiratory function trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the processes involved in respiration." ;
  rdfs:subClassOf obo:VT_0001943 .

obo:VT_0000359 a rdfs:Class ;
  rdfs:label "mast cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a cell that is found in almost all tissues, containing numerous basophilic granules and capable of releasing large amounts of histamine and heparin upon activation." ;
  rdfs:subClassOf obo:VT_0008246 .

obo:VT_0003853 a rdfs:Class ;
  rdfs:label "skin water amount" ;
  rdfs:comment "The proportion, quantity, or volume of moisture in the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0003684 a rdfs:Class ;
  rdfs:label "inferior olivary complex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the capsule-shaped structure in the ventral medulla located just lateral and dorsal to the medullary pyramids; neurons in the inferior olivary nucleus are the source of climbing fiber input to the cerebellar cortex and have been implicated in various functions, such as learning and timing of movements." ;
  rdfs:subClassOf obo:VT_0000846 .

obo:VT_0010686 a rdfs:Class ;
  rdfs:label "blood calcidiol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the product of the first step in the biologic conversion of vitamin D3 to the more active form, calcitriol." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0008781 a rdfs:Class ;
  rdfs:label "B cell apoptosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which B cells undergo programmed cell death." ;
  rdfs:subClassOf obo:VT_0002459 .

obo:VT_0004249 a rdfs:Class ;
  rdfs:label "crista ampullaris morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the elevation found on the inner surface of the ampullae of each semicircular duct; filaments of the vestibular nerve pass through the crista to reach hair cells on its surface; the hair cells are capped by the cupula, a gelatinous protein-polysaccharide mass." ;
  rdfs:subClassOf obo:VT_0002428 .

obo:VT_0010064 a rdfs:Class ;
  rdfs:label "connective tissue physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the physical or functional supporting tissue of the body, a major constituent of which is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins." ;
  rdfs:subClassOf obo:VT_0100002 .

obo:VT_0004262 a rdfs:Class ;
  rdfs:label "physical strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of an organism to exert force on physical objects or of the body to support its load." ;
  rdfs:subClassOf obo:VT_0010444 .

obo:VT_0010373 a rdfs:Class ;
  rdfs:label "milk monounsaturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons present in milk fat; the carbon chain has only one double or triple carbon-carbon bond." ;
  rdfs:subClassOf obo:VT_0010305 .

obo:VT_0000069 a rdfs:Class ;
  rdfs:label "embryo trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the anatomical entity that comprises the organism 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:VT_0010454 .

obo:VT_0005189 a rdfs:Class ;
  rdfs:label "perineum length" ;
  rdfs:comment "The distance from point to point along the longest axis of the space between the genitals and the anus." ;
  rdfs:subClassOf obo:VT_0003315 .

obo:VT_0010780 a rdfs:Class ;
  rdfs:label "cerebrovascular system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the network of vessels that convey blood in the brain." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_0008076 a rdfs:Class ;
  rdfs:label "CD4-positive T cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the subset of T lymphocytes that carry the CD4 marker, recognize intravesicular peptides bound to MHC class-II molecules, and turn on antibody production." ;
  rdfs:subClassOf obo:VT_0002145 .

obo:VT_0011020 a rdfs:Class ;
  rdfs:label "foot pad ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the metapodial pad. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0000574 .

obo:VT_0005183 a rdfs:Class ;
  rdfs:label "blood estradiol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this most potent estrogen." ;
  rdfs:subClassOf obo:VT_0003369 .

obo:VT_1000433 a rdfs:Class ;
  rdfs:label "muscle protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of macromolecules consisting of long chains of amino acids in peptide linkage in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0005280 a rdfs:Class ;
  rdfs:label "adipose fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons present in fat-storing cells/tissue; they are saturated and unsaturated." ;
  rdfs:subClassOf obo:VT_0010006 , obo:VT_0010046 .

obo:VT_0006213 a rdfs:Class ;
  rdfs:label "orbit depth" ;
  rdfs:comment "The distance from exterior to interior of the bony cavity that contains the eyeball or of any of the parts of the bones which form the cavity." ;
  rdfs:subClassOf obo:VT_0006210 .

obo:VT_0004364 a rdfs:Class ;
  rdfs:label "stria vascularis size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the stratified, secretory epithelium which lines the upper part of the cochlear spiral ligament and maintains K+ homeostasis in the endolymph." ;
  rdfs:subClassOf obo:VT_0000048 .

obo:VT_0000171 a rdfs:Class ;
  rdfs:label "blood physiology trait" ;
  rdfs:comment "Any measurable functional characteristic related to the function of or processes in the fluid that circulates through the heart, arteries, veins, and capillaries, carrying oxygen and nutritive materials and removing waste products and carbon dioxide." ;
  rdfs:subClassOf obo:VT_0001544 .

obo:VT_1000784 a rdfs:Class ;
  rdfs:label "circulatory system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the system that moves extracellular fluids to and from tissues." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0010817 a rdfs:Class ;
  rdfs:label "comb length" ;
  rdfs:comment "The distance from point to point along the longest axis of the vascular, red cutaneous structure attached in a sagittal plane to the dorsum of the skull of domestic fowl." ;
  rdfs:subClassOf obo:VT_0010657 .

obo:VT_1000242 a rdfs:Class ;
  rdfs:label "feather pecking trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the pecking of the other birds." ;
  rdfs:subClassOf obo:VT_0002557 , obo:VT_0015014 .

obo:VT_0100002 a rdfs:Class ;
  rdfs:label "connective tissue trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical or functional supporting tissue of the body, a major constituent of which is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0002345 a rdfs:Class ;
  rdfs:label "lymph node primary follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the immunologically inactive B cell area of the lymph node cortex." ;
  rdfs:subClassOf obo:VT_0002344 .

obo:VT_0000132 a rdfs:Class ;
  rdfs:label "epiphysis width" ;
  rdfs:comment "The distance from side to side of the part of the head of a long bone which, during development and growth, is separated from the shaft by the epiphyseal plate." ;
  rdfs:subClassOf obo:VT_0000131 .

obo:VT_0010559 a rdfs:Class ;
  rdfs:label "kidney renin amount" ;
  rdfs:comment "The proportion, quantity, or volume in the kidney of this enzyme which cleaves a bond in angiotensionogen to generate angiotensin I." ;
  rdfs:subClassOf obo:VT_0010558 .

obo:VT_0002861 a rdfs:Class ;
  rdfs:label "tail bud morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the primordial region of the embryo that arises to form the tail of the adult." ;
  rdfs:subClassOf obo:VT_0006281 .

obo:VT_0000779 a rdfs:Class ;
  rdfs:label "cochlea basement membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the continuous basement membrane found within the membranous labyrinth of the cochlea, known to extend from the limbus, down to the inner sulcus, across the basilar membrane, up to the external sulcus to the spiral prominence and radiating into the spiral ligament ensheathing the root cell processes." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0001908 a rdfs:Class ;
  rdfs:label "somatosensory cortex physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the area of the parietal lobe that lies posterior to the central sulcus and is concerned with receiving and processing general sensations from the body surface." ;
  rdfs:subClassOf obo:VT_0003876 .

obo:VT_0011273 a rdfs:Class ;
  rdfs:label "epididymis ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011272 .

obo:VT_0002656 a rdfs:Class ;
  rdfs:label "keratinocyte development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cells of the epidermis that produce keratin in the process of differentiating into the dead and fully keratinized cells of the stratum corneum." ;
  rdfs:subClassOf obo:VT_0003941 .

obo:VT_0011154 a rdfs:Class ;
  rdfs:label "tibia molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the tibia, the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0000558 .

obo:VT_0001927 a rdfs:Class ;
  rdfs:label "estrous cycle trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the sexual cycle of female animals." ;
  rdfs:subClassOf obo:VT_0003699 .

obo:VT_0002261 a rdfs:Class ;
  rdfs:label "laryngeal mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mucous lining of the larynx, which is composed of squamous epithelium in the upper larynx and ciliated columnar epithelium in the lower larynx." ;
  rdfs:subClassOf obo:VT_0002249 , obo:VT_0002277 .

obo:VT_0010611 a rdfs:Class ;
  rdfs:label "uterus mass" ;
  rdfs:comment "The amount of matter in the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0002637 .

obo:VT_0005306 a rdfs:Class ;
  rdfs:label "phalanx morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the long bones of the digits." ;
  rdfs:subClassOf obo:VT_0002110 , obo:VT_0003723 .

obo:VT_0003384 a rdfs:Class ;
  rdfs:label "ventral body wall morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the anterior portion of a human body or the lower surface of an animal body comprised of ectoderm and mesoderm layers that encloses the body cavity." ;
  rdfs:subClassOf obo:VT_0003385 .

obo:VT_0000526 a rdfs:Class ;
  rdfs:label "kidney pyramid size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the pyramidal masses; contain part of the secreting tubules and collecting tubules." ;
  rdfs:subClassOf obo:VT_0004192 .

obo:VT_0000571 a rdfs:Class ;
  rdfs:label "obsolete interdigital webbing trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the presence of a fold of skin, or web, between the fingers or toes." .

obo:VT_0005543 a rdfs:Class ;
  rdfs:label "cornea thickness trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the distance between the surfaces of the cornea, the transparent anterior portion of the fibrous coat of the eye that serves as the chief refractory structure." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0000195 a rdfs:Class ;
  rdfs:label "blood vessel reactivity trait" ;
  rdfs:comment "Any measurable characteristic related to the ability of a blood vessel to change diameter in response to a chemical or mechanical signal." ;
  rdfs:subClassOf obo:VT_0000170 .

obo:VT_0000269 a rdfs:Class ;
  rdfs:label "heart tube looping morphogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristics pertaining to the process by which the embryonic heart tube bends to transform from a straight tube into the final folded configuration of the adult heart." ;
  rdfs:subClassOf obo:VT_0000267 .

obo:VT_0010654 a rdfs:Class ;
  rdfs:label "muscle zinc amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this essential metallic element that is involved in most metabolic pathways." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0008117 a rdfs:Class ;
  rdfs:label "Langerhans cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a stellate dendritic cell of myeloid origin, that appears clear on light microscopy and has a dark-staining, indented nucleus and characteristic inclusions (Birbeck granules) in the cytoplasm; Langerhans cells are found principally in the stratum spinosum of the epidermis, but they also occur in other stratified epithelia and have been identified in the lung, lymph nodes, spleen, and thymus." ;
  rdfs:subClassOf obo:VT_0006173 .

obo:VT_0000882 a rdfs:Class ;
  rdfs:label "cochlear hair bundle horizontal top connectors morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the inter-stereocilial links that connect the top of a shorter stereocilium to an adjacent longer stereocilium at a short distance below the tip links; the appearance of horizontal top connectors, which persist into adulthood, occurs concomitant with this loss of ankle links; top connectors are essentially unaffected by treatment with subtilisin and EGTA." ;
  rdfs:subClassOf obo:VT_0000838 .

obo:VT_0010773 a rdfs:Class ;
  rdfs:label "peripheral nervous system integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the major division of the nervous system that contains nerves which connect the central nervous system (CNS) with sensory organs, other organs, muscles, blood vessels and glands." ;
  rdfs:subClassOf obo:VT_0010566 .

obo:VT_0001168 a rdfs:Class ;
  rdfs:label "prostate epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the prostate epithelium." ;
  rdfs:subClassOf obo:VT_0001158 .

obo:VT_0000893 a rdfs:Class ;
  rdfs:label "cochlear hair cell stereocilia quantity" ;
  rdfs:comment "The proportion or number of the nonmotile, actin-filled specialized microvilli (stereocilia) normally arrayed on the sensory epithelial cells of the cochlea, which are normally in synaptic contact with the auditory nerve." ;
  rdfs:subClassOf obo:VT_0000816 .

obo:VT_1000776 a rdfs:Class ;
  rdfs:label "alimentary system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the system dedicated to the mechanical, chemical, and enzymatic processing of food." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0004305 a rdfs:Class ;
  rdfs:label "Rosenthal canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the winding tube of the bony labyrinth that makes two and a half turns about the modiolus of the cochlea; it is divided incompletely into two compartments by a winding shelf of bone, the bony spiral lamina." ;
  rdfs:subClassOf obo:VT_0000031 , obo:VT_0002729 .

obo:VT_0001065 a rdfs:Class ;
  rdfs:label "trigeminal nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the chief sensory nerve of the face and motor nerve of the muscles of mastication; has three major divisions: ophthalmic, maxillary and mandibular." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0004258 a rdfs:Class ;
  rdfs:label "placenta size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organ of metabolic interchange between fetus and mother." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_0010914 a rdfs:Class ;
  rdfs:label "blood glucagon-like peptide amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a peptide hormone derived from proglucagon and mainly produced by intestinal L cells." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0004173 a rdfs:Class ;
  rdfs:label "intervertebral disk morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cartilaginous and gelatinous structures found between the bodies of adjacent vertebrae." ;
  rdfs:subClassOf obo:VT_0000163 , obo:VT_0010086 .

obo:VT_0005239 a rdfs:Class ;
  rdfs:label "Bruch membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the transparent, nearly structureless inner layer of the choroid in contact with the pigmented layer of the retina." ;
  rdfs:subClassOf obo:VT_0005098 .

obo:VT_0004277 a rdfs:Class ;
  rdfs:label "lateral ganglionic eminence morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a distinct elevation of a transient proliferating cell mass of the fetal 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:VT_0004274 .

obo:VT_0010336 a rdfs:Class ;
  rdfs:label "obsolete milk fatty acid cis-14/trans-16-C18:1 amount" ;
  rdfs:comment "OBSOLETE. The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and either a cis double bond at C-14 or a trans double bond at C-16." .

obo:VT_0005537 a rdfs:Class ;
  rdfs:label "cerebral aqueduct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the channel in the mesencephalon that connects the third and fourth ventricles." ;
  rdfs:subClassOf obo:VT_0000897 .

obo:VT_0001685 a rdfs:Class ;
  rdfs:label "endoderm development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the innermost of the three germ layers during its formation and differentiation during gastrulation." ;
  rdfs:subClassOf obo:VT_0001674 .

obo:VT_0004135 a rdfs:Class ;
  rdfs:label "mammary gland embryonic development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation during early embryogenesis of the milk-secreting gland in female mammals." ;
  rdfs:subClassOf obo:VT_0000628 .

obo:VT_0001049 a rdfs:Class ;
  rdfs:label "obsolete enteric cholinergic innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers that utilize acetylcholine as a neurotransmitter to the alimentary tube.
consider: VT:0010074, VT:0010099""" .

obo:VT_0010997 a rdfs:Class ;
  rdfs:label "response to Coronaviridae infection" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter immune processes or function as a result of invasion and multiplication of Coronaviridae viruses (enveloped positive-sense single-stranded RNA viruses with a genome of up to 32kb in length) in the tissues, or of exposure to components of or toxins produced by a coronavirus." ;
  rdfs:subClassOf obo:VT_0010439 .

obo:VT_0010594 a rdfs:Class ;
  rdfs:label "liver campesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the bile-secreting exocrine gland of a phytosterol with the formula C28H48O." ;
  rdfs:subClassOf obo:VT_0010593 .

obo:VT_0001919 a rdfs:Class ;
  rdfs:label "reproductive system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organs associated with producing offspring." ;
  rdfs:subClassOf obo:VT_0005389 .

obo:VT_0015087 a rdfs:Class ;
  rdfs:label "vitamin metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to any process that causes a chemical change in any of the organic substances found in food that are necessary in trace amounts for normal metabolic function." ;
  rdfs:subClassOf obo:VT_0010636 .

obo:VT_0005286 a rdfs:Class ;
  rdfs:label "adipose saturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons present in fat-storing cells/tissue; the carbon chain contains only single carbon-carbon bonds." ;
  rdfs:subClassOf obo:VT_0005280 .

obo:VT_0010416 a rdfs:Class ;
  rdfs:label "seminal gland physiology" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the glandular structure that is a diverticulum of the ductus deferens; its secretion is one of the components of semen." ;
  rdfs:subClassOf obo:VT_0003698 .

obo:VT_0010217 a rdfs:Class ;
  rdfs:label "jejunum crypt of Lieberkuhn depth" ;
  rdfs:comment "The distance between the inferior and superior edges of the straight tubular glands located in the epithelial layer of the intestine between the bases of the villi of the jejunum." ;
  rdfs:subClassOf obo:VT_0000490 , obo:VT_0004002 , obo:VT_0010222 .

obo:VT_0011224 a rdfs:Class ;
  rdfs:label "paw/hand/foot/hoof integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the pedal or prehensile extremity of vertebrates." ;
  rdfs:subClassOf obo:VT_0004271 .

obo:VT_0011284 a rdfs:Class ;
  rdfs:label "connective tissue ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the physical or functional supporting tissue of the body, a major constituent of which is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011282 .

obo:VT_0003464 a rdfs:Class ;
  rdfs:label "single cell response threshold" ;
  rdfs:comment "The point at which a stimulus first elicits a recordable response recorded in a single cell." ;
  rdfs:subClassOf obo:VT_0003463 .

obo:VT_0010600 a rdfs:Class ;
  rdfs:label "maternal nurturing trait" ;
  rdfs:comment "Any measurable or observable characteristic related to a female tending to young." ;
  rdfs:subClassOf obo:VT_0010599 .

obo:VT_0008692 a rdfs:Class ;
  rdfs:label "interleukin-23a secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of the p19 subunit of interleukin-23." ;
  rdfs:subClassOf obo:VT_0008689 .

obo:VT_0006251 a rdfs:Class ;
  rdfs:label "ability to open eyelids" ;
  rdfs:comment "The ability to open the eyelids." ;
  rdfs:subClassOf obo:VT_0005253 .

obo:VT_0011165 a rdfs:Class ;
  rdfs:label "bone marrow molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in bone marrow, the soft tissue that fills the cavities of bones." ;
  rdfs:subClassOf obo:VT_0011067 .

obo:VT_0004469 a rdfs:Class ;
  rdfs:label "zygomatic arch morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bony arch in vertebrates that extends along the side or front of the skull beneath the eye socket and is formed by the temporal process of the zygomatic bone and the zygomatic process of the temporal bone." ;
  rdfs:subClassOf obo:VT_0005246 .

obo:VT_0000785 a rdfs:Class ;
  rdfs:label "telencephalon cell quantity" ;
  rdfs:comment "The proportion or number of cells in cerebral cortex and basal ganglia." ;
  rdfs:subClassOf obo:VT_0000787 .

obo:VT_0000854 a rdfs:Class ;
  rdfs:label "cerebellum development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the part of the metencephalon that lies dorsal to the pons and medulla behind the brain stem and controls balance for walking and standing, modulates the force and range of movement and is involved in the learning of motor skills." ;
  rdfs:subClassOf obo:VT_0006108 .

obo:VT_1000152 a rdfs:Class ;
  rdfs:label "wellness/fitness trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the healthfulness of an organism." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0010209 a rdfs:Class ;
  rdfs:label "duodenum villi length" ;
  rdfs:comment "The distance from point to point along the longest axis of the finger-like projections of the mucosal layer of the duodenum." ;
  rdfs:subClassOf obo:VT_0003271 , obo:VT_0010221 .

obo:VT_0008209 a rdfs:Class ;
  rdfs:label "pre-B cell quantity" ;
  rdfs:comment "The proportion or number of cells in the B lymphocyte lineage that have undergone VDJ rearrangement of the immunoglobulin heavy chain and are in the process of V-J rearrangement of the light chain: these cells express mu heavy chain on the cell surface." ;
  rdfs:subClassOf obo:VT_0002403 , obo:VT_0008215 .

obo:VT_0000823 a rdfs:Class ;
  rdfs:label "lateral ventricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cavity in each of the cerebral hemispheres derived from the cavity of the embryonic neural tube; they are separated from each other by the septum pellucidum, and each communicates with the third ventricle by the foramen of Monro, through which also the choroid plexuses of the lateral ventricles become continuous with that of the third ventricle." ;
  rdfs:subClassOf obo:VT_0000787 , obo:VT_0000822 .

obo:VT_0002260 a rdfs:Class ;
  rdfs:label "thyroid cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the largest of the laryngeal cartilages." ;
  rdfs:subClassOf obo:VT_0002256 .

obo:VT_0010325 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9,cis-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated, omega-6 fatty acid with an eighteen-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010323 .

obo:VT_0010444 a rdfs:Class ;
  rdfs:label "kinesthetic behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic of behavior related to the actions or reactions of an organism with regard to the movement of the body's muscles, tendons, and joints." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0000272 a rdfs:Class ;
  rdfs:label "aorta morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0008751 a rdfs:Class ;
  rdfs:label "interleukin amount" ;
  rdfs:comment "The proportion, quantity, or volume of soluble factors which stimulate growth-related activities of leukocytes as well as other cell types; they enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli." ;
  rdfs:subClassOf obo:VT_0008713 .

obo:VT_0003812 a rdfs:Class ;
  rdfs:label "hair medulla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the central axis of the hair shaft." ;
  rdfs:subClassOf obo:VT_0003809 .

obo:VT_0010947 a rdfs:Class ;
  rdfs:label "liver adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of the fat-storing tissue in the liver, the bile-secreting exocrine gland which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0000598 , obo:VT_0001781 .

obo:VT_0010535 a rdfs:Class ;
  rdfs:label "erythrocyte ion amount" ;
  rdfs:comment "The proportion, quantity, or volume in red blood cells of atoms carrying an electric charge." ;
  rdfs:subClassOf obo:VT_0010939 .

obo:VT_0002106 a rdfs:Class ;
  rdfs:label "muscular system physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0005369 .

obo:VT_0010206 a rdfs:Class ;
  rdfs:label "proventriculus mucosa thickness" ;
  rdfs:comment "The distance between the surfaces of the mucosal layer lining the first muscular and glandular part of the stomach of birds where digestive enzymes are secreted and mixed with food." ;
  rdfs:subClassOf obo:VT_0010203 .

obo:VT_0002163 a rdfs:Class ;
  rdfs:label "gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of an organized aggregation of cells functioning as a secretory or excretory organ." ;
  rdfs:subClassOf obo:VT_1000782 .

obo:VT_0010766 a rdfs:Class ;
  rdfs:label "gluthathione peroxidase activity" ;
  rdfs:comment "The degree of function or response of the enzyme that catalyzes the following reaction: 2 glutathione + hydrogen peroxide = oxidized glutathione + 2 H2O." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0001139 a rdfs:Class ;
  rdfs:label "vagina morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the female reproductive canal located between the uterus and the vulva." ;
  rdfs:subClassOf obo:VT_0001119 .

obo:VT_0004409 a rdfs:Class ;
  rdfs:label "ampullary crest neuroepithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the specialized sensory hair cells of the ampullary crest of the ampulla of each semicircular duct." ;
  rdfs:subClassOf obo:VT_0004249 .

obo:VT_1000072 a rdfs:Class ;
  rdfs:label "milk somatic cell quantity" ;
  rdfs:comment "The proportion or number of somatic cells (leukocytes and epithelial cells) in milk; a high number is an indicator of mastitis." ;
  rdfs:subClassOf obo:VT_0004047 .

obo:VT_0000116 a rdfs:Class ;
  rdfs:label "tooth development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the bone-like structures embedded in the jaw." ;
  rdfs:subClassOf obo:VT_0003935 .

obo:VT_0002451 a rdfs:Class ;
  rdfs:label "macrophage physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the large mononuclear phagocytes which differentiate from monocytes, are typically resident in a particular tissue, and capable of phagocytosing a variety of extracellular particulate material, including immune complexes, microorganisms, and dead cells." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0006034 a rdfs:Class ;
  rdfs:label "urine myoglobin amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the oxygen-carrying protein of muscle." ;
  rdfs:subClassOf obo:VT_0005160 .

obo:VT_0010524 a rdfs:Class ;
  rdfs:label "seminal gland mass" ;
  rdfs:comment "The amount of matter in the two folded, sac shaped glands that are diverticula of the ductus deferens." ;
  rdfs:subClassOf obo:VT_0002997 .

obo:VT_0010870 a rdfs:Class ;
  rdfs:label "blood enzyme inhibitor amount" ;
  rdfs:comment "The proportion, quantity, or volume in the blood of any pharmacologically, endocrinologically, or toxicologically active substance which decreases or interferes with the activity of an enzyme." ;
  rdfs:subClassOf obo:VT_0010622 .

obo:VT_0011307 a rdfs:Class ;
  rdfs:label "time of incisor eruption" ;
  rdfs:comment "The stage of development when a developing incisor first emerges through the gingival/oral epithelium and becomes visible in the oral cavity." ;
  rdfs:subClassOf obo:VT_0005359 .

obo:VT_0001151 a rdfs:Class ;
  rdfs:label "foreskin size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the loose fold of skin that covers the penis." ;
  rdfs:subClassOf obo:VT_0003553 .

obo:VT_0001102 a rdfs:Class ;
  rdfs:label "superior vagus ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the upper ganglion of the vagus nerve located at the jugular foramen." ;
  rdfs:subClassOf obo:VT_0001101 .

obo:VT_0010289 a rdfs:Class ;
  rdfs:label "motor nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers that convey impulses from the central nervous system to stimulate muscle contraction or glandular secretion." ;
  rdfs:subClassOf obo:VT_0010143 .

obo:VT_0002884 a rdfs:Class ;
  rdfs:label "branchial arch development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the transient structures of the embryo that develop into regions of the head and neck in higher vertebrates; in fish and amphibians, they support the gills." ;
  rdfs:subClassOf obo:VT_0003935 , obo:VT_0005380 .

obo:VT_0011358 a rdfs:Class ;
  rdfs:label "blood immunoglobulin Y amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the immunoglobulin which is the major antibody in amphibian, bird, reptile, and lungfish blood." ;
  rdfs:subClassOf obo:VT_0002460 .

obo:VT_0003864 a rdfs:Class ;
  rdfs:label "midbrain development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the part of the brainstem developing from the middle of the three primary cerebral vesicles of the embryo." ;
  rdfs:subClassOf obo:VT_0000913 .

obo:VT_0001775 a rdfs:Class ;
  rdfs:label "selenium amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of this essential trace element, required for glutathione peroxidase and other enzymes." ;
  rdfs:subClassOf obo:VT_0000192 .

obo:VT_0010166 a rdfs:Class ;
  rdfs:label "obsolete induced interleukin-2 activity" ;
  rdfs:comment "OBSOLETE. The degree of function or response to an external intervention of the cytokine released by helper T cells that stimulates proliferation of T lymphocytes and activated B lymphocytes." .

obo:VT_2000002 a rdfs:Class ;
  rdfs:label "venous blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the blood pressure in the veins." ;
  rdfs:subClassOf obo:VT_0000183 .

obo:VT_0010405 a rdfs:Class ;
  rdfs:label "sperm size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the male gamete." ;
  rdfs:subClassOf obo:VT_0010042 .

obo:VT_0000240 a rdfs:Class ;
  rdfs:label "hematopoiesis location trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical site where formation and development of blood cells occurs." ;
  rdfs:subClassOf obo:VT_0002123 .

obo:VT_0004230 a rdfs:Class ;
  rdfs:label "embryonic erythrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the embryonic blood cells that carry oxygen." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0000994 a rdfs:Class ;
  rdfs:label "secondary muscle spindle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory organ in muscle; involved in the stretch reflex and not sensitive to stretch velocity." ;
  rdfs:subClassOf obo:VT_0004069 .

obo:VT_0007075 a rdfs:Class ;
  rdfs:label "heart left ventricle wall thickness" ;
  rdfs:comment "The distance between the surfaces of the wall of the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003921 .

obo:VT_0002076 a rdfs:Class ;
  rdfs:label "hair follicle morphology trait" ;
  rdfs:comment "Any measurable characteristic related to the shape, structure, color, or pattern of the tubular invaginations of the epidermis from which the hair shaft develops." ;
  rdfs:subClassOf obo:VT_0010007 .

obo:VT_0015073 a rdfs:Class ;
  rdfs:label "fin regeneration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which a fin or portion of a fin is regrown after damage or amputation." ;
  rdfs:subClassOf obo:VT_0015070 .

obo:VT_0001146 a rdfs:Class ;
  rdfs:label "testis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the male reproductive gland(s) where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0000653 , obo:VT_0001145 .

obo:VT_0002894 a rdfs:Class ;
  rdfs:label "otolith morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the crystalline particles composed of calcium carbonate and a protein which adhere to the gelatinous membrane of the maculae of the utricle and saccule (otolithic membrane)." ;
  rdfs:subClassOf obo:VT_0002895 .

obo:VT_0011112 a rdfs:Class ;
  rdfs:label "sinoatrial node molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the small mass of modified cardiac muscle fibers located at the junction of the superior vena cava and the right atrium that is the source of contraction impulses for the heart." ;
  rdfs:subClassOf obo:VT_0004115 .

obo:VT_0002946 a rdfs:Class ;
  rdfs:label "time of axon outgrowth" ;
  rdfs:comment "The time required for an axon to extend from a neuron cell body and find the target." ;
  rdfs:subClassOf obo:VT_0003651 .

obo:VT_0002069 a rdfs:Class ;
  rdfs:label "consumption behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism with regard to the consumption of solids or liquids." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0001765 a rdfs:Class ;
  rdfs:label "ion homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to any process involved in the maintenance of an internal equilibrium of ions within an organism or cell." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0010881 a rdfs:Class ;
  rdfs:label "blood oxidized LDL amount" ;
  rdfs:comment "The proportion, quantity, or volume of oxidized LDL in whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0000181 , obo:VT_0010505 , obo:VT_0010699 , obo:VT_0010931 .

obo:VT_0000548 a rdfs:Class ;
  rdfs:label "limb length" ;
  rdfs:comment "The distance from point to point along the longest axis of the projecting, paired, jointed appendages of the body used for movement and grasping." ;
  rdfs:subClassOf obo:VT_0002109 .

obo:VT_0003637 a rdfs:Class ;
  rdfs:label "cochlear ganglion cell quantity" ;
  rdfs:comment "The proportion or number of the group of nerve cell bodies that convey auditory sensation from the organ of Corti to the hindbrain and reside on the cochlear part of the vestibulocochlear nerve (eighth cranial nerve)." ;
  rdfs:subClassOf obo:VT_0002855 .

obo:VT_0011289 a rdfs:Class ;
  rdfs:label "midbrain molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the middle division of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes a ventral part containing the cerebral peduncles and a dorsal tectum containing the corpora quadrigemina and that surrounds the aqueduct of Sylvius connecting the third and fourth ventricles)." ;
  rdfs:subClassOf obo:VT_0000897 , obo:VT_0010585 .

obo:VT_0000157 a rdfs:Class ;
  rdfs:label "sternum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the long, flat bone of the chest." ;
  rdfs:subClassOf obo:VT_0004134 , obo:VT_0010092 .

obo:VT_0010234 a rdfs:Class ;
  rdfs:label "cecum mucosa thickness" ;
  rdfs:comment "The distance between the surfaces of the mucosal layer lining the large sac at the ileum and large intestine junction." ;
  rdfs:subClassOf obo:VT_0000494 .

obo:VT_0001544 a rdfs:Class ;
  rdfs:label "cardiovascular system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the heart or blood vessels." ;
  rdfs:subClassOf obo:VT_0100017 .

obo:VT_0000781 a rdfs:Class ;
  rdfs:label "corpus callosum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the commissural plate interconnecting the cortical hemispheres of the brain." ;
  rdfs:subClassOf obo:VT_0000780 .

obo:VT_0011183 a rdfs:Class ;
  rdfs:label "Circle of Willis ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the Circle of Willis, a network of arteries at the base of the brain that connects the two major arterial systems supplying blood to the brain. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011182 .

obo:VT_0010936 a rdfs:Class ;
  rdfs:label "head temperature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the level of heat maintained in the head of a living being." ;
  rdfs:subClassOf obo:VT_0005535 .

obo:VT_0015102 a rdfs:Class ;
  rdfs:label "parasympathetic cholinergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that utilize acetylcholine as a neurotransmitter, innervate smooth muscle, cardiac muscle and glands and regulate homeostasis." ;
  rdfs:subClassOf obo:VT_0001037 , obo:VT_0001038 .

obo:VT_0002359 a rdfs:Class ;
  rdfs:label "spleen germinal center morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the spleen secondary B follicle where rapid B-cell proliferation, somatic hypermutation, and selection for antigen binding occurs." ;
  rdfs:subClassOf obo:VT_0008472 .

obo:VT_0000330 a rdfs:Class ;
  rdfs:label "endolymph production trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the secretion of the fluid that is normally contained within the membranous labyrinth of the inner ear." ;
  rdfs:subClassOf obo:VT_0000319 .

obo:VT_0010517 a rdfs:Class ;
  rdfs:label "neurocranium size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bones of the skull enclosing the brain." ;
  rdfs:subClassOf obo:VT_0000074 , obo:VT_0003104 .

obo:VT_0000554 a rdfs:Class ;
  rdfs:label "carpus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nodular bones of the joint between the radius and ulna of the forelimb and the metacarpal bones." ;
  rdfs:subClassOf obo:VT_0000550 , obo:VT_0002115 .

obo:VT_0011343 a rdfs:Class ;
  rdfs:label "blood alpha-1 globulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the proteins in the alpha-1 (faster) subgroup of the serum proteins that have the most rapid migration during electrophoresis." ;
  rdfs:subClassOf obo:VT_0010628 .

obo:VT_0010665 a rdfs:Class ;
  rdfs:label "gluteus medius mass" ;
  rdfs:comment "The amount of matter in one of the three gluteal muscles, situated on the outer surface of the pelvis." ;
  rdfs:subClassOf obo:VT_1000712 .

obo:VT_0000538 a rdfs:Class ;
  rdfs:label "urinary bladder morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the distensible musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0000516 .

obo:VT_0010622 a rdfs:Class ;
  rdfs:label "blood xenobiotic amount" ;
  rdfs:comment "The proportion, quantity, or volume in the blood of any pharmacologically, endocrinologically, or toxicologically active substance not endogenously produced and therefore foreign to an organism." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0015005 a rdfs:Class ;
  rdfs:label "parametrial fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the extension of the subserous coat of the uterus laterally between the layers of the broad ligament." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0002782 a rdfs:Class ;
  rdfs:label "secretion by testes trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances from the male reproductive glands where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0000051 , obo:VT_0002779 .

obo:VT_0010303 a rdfs:Class ;
  rdfs:label "milk fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of straight chain monocarboxylic acids naturally occurring in fats found in milk fat; they are saturated and unsaturated." ;
  rdfs:subClassOf obo:VT_0010046 , obo:VT_0010261 .

obo:VT_0010951 a rdfs:Class ;
  rdfs:label "heart right ventricle molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003920 .

obo:VT_0010224 a rdfs:Class ;
  rdfs:label "ileum length" ;
  rdfs:comment "The distance from point to point along the longest axis of the portion of the small intestine that extends from the jejunum to the colon." ;
  rdfs:subClassOf obo:VT_0002581 , obo:VT_1000421 .

obo:VT_0001087 a rdfs:Class ;
  rdfs:label "nodose ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large group of sensory neuron cell bodies, anterior to the jugular vein, associated with the vagus nerve (tenth cranial nerve)." ;
  rdfs:subClassOf obo:VT_0000960 , obo:VT_0001100 .

obo:VT_0005109 a rdfs:Class ;
  rdfs:label "talus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tarsal bone that articulates with the tibia and fibula." ;
  rdfs:subClassOf obo:VT_0005104 .

obo:VT_0011376 a rdfs:Class ;
  rdfs:label "feces trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the semisolid bodily waste discharged through the anus." ;
  rdfs:subClassOf obo:VT_0011375 .

obo:VT_0006006 a rdfs:Class ;
  rdfs:label "sensory neuron quantity" ;
  rdfs:comment "The proportion or number of cells that innervate an effector (muscle or glandular) tissue and are responsible for transmission of sensory impulses." ;
  rdfs:subClassOf obo:VT_0000965 .

obo:VT_1000130 a rdfs:Class ;
  rdfs:label "internal adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of fat-storing tissue in the body cavity, specifically in the areas of the kidneys, pelvis, and heart." ;
  rdfs:subClassOf obo:VT_0001781 .

obo:VT_0010925 a rdfs:Class ;
  rdfs:label "kidney glomerulus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the capillary loops at the beginning of each nephric tubule in the kidney." ;
  rdfs:subClassOf obo:VT_0005325 .

obo:VT_0005425 a rdfs:Class ;
  rdfs:label "macrophage quantity" ;
  rdfs:comment "The proportion or numbers of the large mononuclear phagocytes which differentiate from monocytes, are typically resident in a particular tissue, and are capable of phagocytosing a variety of extracellular particulate material, including immune complexes, microorganisms, and dead cells." ;
  rdfs:subClassOf obo:VT_0000217 , obo:VT_0002446 .

obo:VT_0008610 a rdfs:Class ;
  rdfs:label "blood interleukin-15 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine that stimulates the proliferation of T-cells and can induce proliferation and differentiation of B-cells; interleukin-15 shares biological activities with interleukin-2." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0011209 a rdfs:Class ;
  rdfs:label "colostrum albumin amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of the major blood protein that is important in maintenance of the colloidal osmotic pressure, fatty acid transport, and transport of large organic molecules." ;
  rdfs:subClassOf obo:VT_0011210 .

obo:VT_0010967 a rdfs:Class ;
  rdfs:label "blood L-alanine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of alanine, an alpha-amino acid that consists of propionic acid bearing an amino substituent at position 2." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0010358 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-8,trans-10-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-8 and C-10." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0004295 a rdfs:Class ;
  rdfs:label "type III spiral ligament fibrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the type III spiral ligament fibrocytes which form a cell layer attached to the otic capsule." ;
  rdfs:subClassOf obo:VT_0004292 .

obo:VT_0010896 a rdfs:Class ;
  rdfs:label "femur area" ;
  rdfs:comment "The two-dimensional extent of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_1000369 .

obo:VT_0015031 a rdfs:Class ;
  rdfs:label "obsolete behavioral response to xenobiotic stimulus trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to behavior or change in behavior in response to exposure to a foreign compound." .

obo:VT_0006076 a rdfs:Class ;
  rdfs:label "blood homocysteine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this cysteine homologue produced by the demethylation of methionine, an intermediate in the biosynthesis of l-cysteine from l-methionine via l-cystathionine." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0005228 a rdfs:Class ;
  rdfs:label "vertebral body/neural arch fusion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the joining of the main portion of the vertebra anterior to the vertebral canal and the posterior element of a developing vertebra, which will become the vertebral arch and the posterolateral portion of the vertebral body." ;
  rdfs:subClassOf obo:VT_0005225 .

obo:VT_0002645 a rdfs:Class ;
  rdfs:label "cholesterol absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in these most abundant steroids in animal tissues, and precursors to steroid hormones and bile salts; also components of plasma membranes." ;
  rdfs:subClassOf obo:VT_0005342 .

obo:VT_0005389 a rdfs:Class ;
  rdfs:label "reproductive system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the organs associated with producing offspring." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0006091 a rdfs:Class ;
  rdfs:label "olfactory epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the epithelial cells that line the interior of the nose." ;
  rdfs:subClassOf obo:VT_0005499 .

obo:VT_0003677 a rdfs:Class ;
  rdfs:label "ear lobe morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the soft tissue at the base of the outer ear; consists of fat and fibrous tissue not reinforced by the auricular cartilage." ;
  rdfs:subClassOf obo:VT_0002177 .

obo:VT_0010384 a rdfs:Class ;
  rdfs:label "oviduct length" ;
  rdfs:comment "The distance from point to point along the longest axis of the tube through which the ova pass from the ovary to the uterus (mammals) or to the outside (fish, birds)." ;
  rdfs:subClassOf obo:VT_0003576 .

obo:VT_0005666 a rdfs:Class ;
  rdfs:label "adipose physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the fat-storing cells/tissue." ;
  rdfs:subClassOf obo:VT_0010064 .

obo:VT_0010503 a rdfs:Class ;
  rdfs:label "blood IDL cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the lipoprotein:cholesterol complex in which the lipoproteins are formed in degradation of very low density lipoproteins." ;
  rdfs:subClassOf obo:VT_0000180 .

obo:VT_0011071 a rdfs:Class ;
  rdfs:label "heart right ventricle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the right lower chamber of the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010792 , obo:VT_0010951 .

obo:VT_0003713 a rdfs:Class ;
  rdfs:label "obsolete ear rotation trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the orientation of the outer ears in relation to the anterior-posterior body axis, does not refer to the point of emergence on the head.
consider: VT:0010274""" .

obo:VT_0000628 a rdfs:Class ;
  rdfs:label "mammary gland development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the milk-secreting gland in female mammals during early embryogenesis or during sexual maturity or reproduction." ;
  rdfs:subClassOf obo:VT_0003936 , obo:VT_0015037 .

obo:VT_0008542 a rdfs:Class ;
  rdfs:label "cervical lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lymph nodes found near the neck and shoulders." ;
  rdfs:subClassOf obo:VT_0000701 , obo:VT_0002351 .

obo:VT_0001019 a rdfs:Class ;
  rdfs:label "L4 dorsal root ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of nerve cell bodies located on the dorsal spinal roots within the vertebral column at the level of the fourth lumbar vertebra." ;
  rdfs:subClassOf obo:VT_0015054 .

obo:VT_0002913 a rdfs:Class ;
  rdfs:label "PNS synaptic transmission trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the communication from a neuron to a target across a synapse in the peripheral nervous system." ;
  rdfs:subClassOf obo:VT_0003635 .

obo:VT_0003339 a rdfs:Class ;
  rdfs:label "pancreatic beta cell quantity" ;
  rdfs:comment "The proportion or number of the cells of the pancreas that secrete insulin." ;
  rdfs:subClassOf obo:VT_0005217 .

obo:VT_0011363 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-12-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at C-12." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0003886 a rdfs:Class ;
  rdfs:label "embryonic epiblast morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the tissue that gives rise to the ectoderm, endoderm and mesoderm of the embryo proper." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0000768 a rdfs:Class ;
  rdfs:label "common crus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the united, nonampullary ends of the superior and posterior semicircular ducts of the inner ear." ;
  rdfs:subClassOf obo:VT_0002428 .

obo:VT_0100035 a rdfs:Class ;
  rdfs:label "udder size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organ in certain species containing two or more mammary glands, each with its own nipple." ;
  rdfs:subClassOf obo:VT_1000067 .

obo:VT_0010433 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-16-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at C-16." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010755 a rdfs:Class ;
  rdfs:label "heart molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the heart." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0000070 a rdfs:Class ;
  rdfs:label "bone physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in a portion of osseous tissue forming a part of the skeleton; consists of a dense outer layer surrounded by the periosteum, and an inner spongy substance." ;
  rdfs:subClassOf obo:VT_0010064 .

obo:VT_0011036 a rdfs:Class ;
  rdfs:label "dorsal root ganglion molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the group of nerve cell bodies of each segmental nerve projecting from the spinal cord." ;
  rdfs:subClassOf obo:VT_0000961 .

obo:VT_0010150 a rdfs:Class ;
  rdfs:label "Merkel's receptor nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers to the modified epidermal cells located in the stratum basale and found mostly in areas where sensory perception is acute." ;
  rdfs:subClassOf obo:VT_0000985 , obo:VT_0010143 .

obo:VT_0003081 a rdfs:Class ;
  rdfs:label "soleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the superficial flat broad muscle of the calf that is responsible for plantar flexion of the foot." ;
  rdfs:subClassOf obo:VT_0010107 .

obo:VT_0003791 a rdfs:Class ;
  rdfs:label "minor salivary gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the smaller, largely mucus-secreting, exocrine glands of the oral cavity, consisting of the labial, buccal, molar, lingual, and palatine glands." ;
  rdfs:subClassOf obo:VT_0000613 .

obo:VT_0001573 a rdfs:Class ;
  rdfs:label "blood alanine transaminase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which transfers amino groups from l-alanine to 2-ketoglutarate, or the reverse (from l-glutamate to pyruvate); serum concentration is increased in viral hepatitis and myocardial infarction." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0011213 a rdfs:Class ;
  rdfs:label "blood androstenone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the testicular steroid androstenone." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0005098 a rdfs:Class ;
  rdfs:label "choroid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thin, highly vascularized membrane covering most of the posterior of the eye between the retina and the sclera." ;
  rdfs:subClassOf obo:VT_0005196 .

obo:VT_0004050 a rdfs:Class ;
  rdfs:label "kidney sympathetic nerve activity" ;
  rdfs:comment "The degree of function or response of the nerve projecting to the kidney from the division of the nervous system that mediates the body's response to stress." ;
  rdfs:subClassOf obo:VT_0002136 .

obo:VT_0004067 a rdfs:Class ;
  rdfs:label "heart ventricle trabeculae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the supporting bundles of muscular fibers lining the walls of the ventricles of the heart." ;
  rdfs:subClassOf obo:VT_0005294 .

obo:VT_0003420 a rdfs:Class ;
  rdfs:label "intramembranous ossification initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of bone formation in bones that form without a cartilaginous intermediate, including the cranium and clavicle." ;
  rdfs:subClassOf obo:VT_0000060 .

obo:VT_0002272 a rdfs:Class ;
  rdfs:label "nervous system electrophysiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the functions of or processes in the nervous system as they relate to electrical phenomena." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0001236 a rdfs:Class ;
  rdfs:label "epidermis stratum spinosum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the layer of polyhedral cells in the epidermis between the stratum granulosum and stratum basale." ;
  rdfs:subClassOf obo:VT_0001216 .

obo:VT_0000973 a rdfs:Class ;
  rdfs:label "cutaneous/subcutaneous mechanoreceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the receptors that respond to mechanical pressure or distortion in the skin." ;
  rdfs:subClassOf obo:VT_0000972 .

obo:VT_0004284 a rdfs:Class ;
  rdfs:label "Descemet membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the transparent homogeneous acellular layer found between the substantia propria and the endothelial layer of the cornea, considered to be a highly developed basement membrane." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0011086 a rdfs:Class ;
  rdfs:label "mammary gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0011382 a rdfs:Class ;
  rdfs:label "colostrum immunoglobulin G1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of immunoglobulin class G1 in colostrum, the thin, yellow, milky fluid secreted by the mammary gland, before or after parturition, preceding the production of milk." ;
  rdfs:subClassOf obo:VT_0010259 .

obo:VT_0010133 a rdfs:Class ;
  rdfs:label "gizzard capacity" ;
  rdfs:comment "The volume of or amount contained in the secondary, muscular stomach in some vertebrates used for grinding up food." ;
  rdfs:subClassOf obo:VT_1000667 .

obo:VT_0000700 a rdfs:Class ;
  rdfs:label "lymph node quantity" ;
  rdfs:comment "The proportion or number of the oval or bean shaped bodies located along the lymphatic system that consist of densely packed lymphocytes, lymph fluid and connective tissue; the sites where acquired immune responses are launched." ;
  rdfs:subClassOf obo:VT_0002339 .

obo:VT_0003118 a rdfs:Class ;
  rdfs:label "tracheal-bronchial branching morphogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the repeated division of the trachea and bronchi during development of the lung." ;
  rdfs:subClassOf obo:VT_0003115 , obo:VT_0003119 .

obo:VT_0010014 a rdfs:Class ;
  rdfs:label "femur circumference" ;
  rdfs:comment "The distance around the long bone of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_1000369 .

obo:VT_0003893 a rdfs:Class ;
  rdfs:label "hepatocyte proliferation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which liver cells undergo expansion by cell division." ;
  rdfs:subClassOf obo:VT_0000609 .

obo:VT_0002200 a rdfs:Class ;
  rdfs:label "brain ventricle/choroid plexus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cavities of the brain filled with cerebrospinal fluid, or the associated fringe of their tela choroidea." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0000901 a rdfs:Class ;
  rdfs:label "corpora quadrigemina organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the inferior and/or superior colliculus." ;
  rdfs:subClassOf obo:VT_0000899 .

obo:VT_0010784 a rdfs:Class ;
  rdfs:label "blood oxygen amount" ;
  rdfs:comment "The proportion, quantity, or volume of oxygen in whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0002329 .

obo:VT_1000429 a rdfs:Class ;
  rdfs:label "muscle lactate amount" ;
  rdfs:comment "The proportion, quantity, or volume of the compound produced from pyruvate by lactate dehydrogenase in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0010504 a rdfs:Class ;
  rdfs:label "blood HDL phospholipid amount" ;
  rdfs:comment "The proportion, quantity, or volume of phospholipid found in the high density lipoprotein fraction of whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0006084 .

obo:VT_0001501 a rdfs:Class ;
  rdfs:label "sleep behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the behaviors related to the readily reversible state of reduced awareness and metabolic activity that occurs periodically in many animals." ;
  rdfs:subClassOf obo:VT_0010455 .

obo:VT_1000444 a rdfs:Class ;
  rdfs:label "adipose androstenone amount" ;
  rdfs:comment "The proportion, quantity, or volume of the testicular steroid androstenone present in fat tissue." ;
  rdfs:subClassOf obo:VT_0010006 .

obo:VT_0002243 a rdfs:Class ;
  rdfs:label "vomeronasal organ morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the specialized portion of the nasal septum that is composed of chemosensitive cells and lies anteriorly in the nasal cavity." ;
  rdfs:subClassOf obo:VT_0002239 , obo:VT_0005499 .

obo:VT_0000843 a rdfs:Class ;
  rdfs:label "facial nuclei cell quantity" ;
  rdfs:comment "The proportion or number of neurons in the group of motor neurons in the hindbrain; receives fibers from the facial muscles, stapedus muscle and stylohyoid muscle." ;
  rdfs:subClassOf obo:VT_0000909 .

obo:VT_0001525 a rdfs:Class ;
  rdfs:label "balance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to maintain equilibrium." ;
  rdfs:subClassOf obo:VT_0001516 .

obo:VT_0001716 a rdfs:Class ;
  rdfs:label "placenta labyrinth morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the structure where embryonic blood vessels are surrounded by trophoblast cells and maternal blood." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_0006245 a rdfs:Class ;
  rdfs:label "lens orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the transparent structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0001303 .

obo:VT_0100024 a rdfs:Class ;
  rdfs:label "mammary gland fetal development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation during the fetal period of the milk-secreting gland in female mammals." ;
  rdfs:subClassOf obo:VT_0000628 .

obo:VT_0003115 a rdfs:Class ;
  rdfs:label "respiratory system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the system responsible for the exchange of oxygen and carbon dioxide with the environment during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0005388 .

obo:VT_0004345 a rdfs:Class ;
  rdfs:label "acromion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lateral extension of the spine of the scapula which projects as a broad flattened process and articulates with the clavicle, and forms the point of the shoulder." ;
  rdfs:subClassOf obo:VT_0000149 .

obo:VT_0002348 a rdfs:Class ;
  rdfs:label "lymph node medulla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the lymph node through which lymph flows on its way to the efferent lymphatics; it contains macrophages and antibody-secreting plasma cells." ;
  rdfs:subClassOf obo:VT_0002339 .

obo:VT_0008241 a rdfs:Class ;
  rdfs:label "metallophilic macrophage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the macrophage cells that surround the white pulp of the spleen, adjacent to the marginal sinus." ;
  rdfs:subClassOf obo:VT_0002357 , obo:VT_0002446 .

obo:VT_0003690 a rdfs:Class ;
  rdfs:label "glia physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the non-neuronal cells of the nervous system, which are interposed between neurons and the blood vessels supplying the nervous system." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_1000220 a rdfs:Class ;
  rdfs:label "abdominal adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of the fat-storing tissue lining the cavity bounded by the abdominal walls, the diaphragm, and the pelvis, and surrounding the internal organs." ;
  rdfs:subClassOf obo:VT_0001781 .

obo:VT_0005002 a rdfs:Class ;
  rdfs:label "T cell clonal deletion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of removal of immature T lymphocytes that interact with self antigens during maturation." ;
  rdfs:subClassOf obo:VT_0004918 , obo:VT_0005001 .

obo:VT_0005521 a rdfs:Class ;
  rdfs:label "blood atrial natriuretic factor amount" ;
  rdfs:comment "The proportion, quantity, or volume of this peptide hormone in whole blood, serum, or plasma; it regulates the water-electrolyte balance and acts as a vasodilator." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010574 a rdfs:Class ;
  rdfs:label "lumbar vertebra strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae to withstand the application of force without yielding or breaking." ;
  rdfs:subClassOf obo:VT_0010573 .

obo:VT_0011172 a rdfs:Class ;
  rdfs:label "carotid artery integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the bilaterally paired branched artery that originates from the aortic arches and divides into and includes as parts the internal and external carotid arteries." ;
  rdfs:subClassOf obo:VT_0010639 , obo:VT_0011171 .

obo:VT_0000228 a rdfs:Class ;
  rdfs:label "thrombopoiesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to development of the non-nucleated cells of the blood (platelets, thrombocytes) involved in blood coagulation." ;
  rdfs:subClassOf obo:VT_0002123 .

obo:VT_0015066 a rdfs:Class ;
  rdfs:label "surface structure morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organism subdivision which is the collection of anatomical structures on the body surface." ;
  rdfs:subClassOf obo:VT_0015052 .

obo:VT_0010142 a rdfs:Class ;
  rdfs:label "nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the elongated processes of neurons." ;
  rdfs:subClassOf obo:VT_0002184 .

obo:VT_0010047 a rdfs:Class ;
  rdfs:label "tendon physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the fibrous bands or cords of connective tissue at the ends of muscle fibers that attach muscles to bones and other structures." ;
  rdfs:subClassOf obo:VT_0002106 , obo:VT_0010064 .

obo:VT_0010962 a rdfs:Class ;
  rdfs:label "soleus muscle mass" ;
  rdfs:comment "The amount of matter in either or both of the soleus muscles, a deep muscle of the triceps surae group, in the superficial posterior compartment of the leg." ;
  rdfs:subClassOf obo:VT_1000712 .

obo:VT_0010060 a rdfs:Class ;
  rdfs:label "muscle fatty acid cis-9-C16:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an omega-7, monounsaturated fatty acid (C16H30O2) present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010049 .

obo:VT_0008556 a rdfs:Class ;
  rdfs:label "tumor necrosis factor secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a serum glycoprotein produced by activated macrophages and NK cells and involved in initiating local inflammatory responses, particularly by its action on the endothelium of local blood vessels; its actions result in increased vascular permeability and induction of expression of adhesion molecules on the endothelium." ;
  rdfs:subClassOf obo:VT_0003009 .

obo:VT_0003399 a rdfs:Class ;
  rdfs:label "skeletal muscle fiber size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the skeletal muscle fibers, the large multinucleated cells that make up the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0003084 , obo:VT_0003398 .

obo:VT_0005265 a rdfs:Class ;
  rdfs:label "blood urea nitrogen amount" ;
  rdfs:comment "The proportion, quantity, or volume of nitrogen, in the form of urea, in whole blood, serum, or plasma; commonly used to measure renal function." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0003107 a rdfs:Class ;
  rdfs:label "behavioral response to novelty trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its actions or reactions as a result of exposure to a new stimulus or situation." ;
  rdfs:subClassOf obo:VT_0002572 .

obo:VT_0001674 a rdfs:Class ;
  rdfs:label "germ layer development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the primary cellular layers from which the organs and tissues develop." ;
  rdfs:subClassOf obo:VT_0001695 .

obo:VT_0000073 a rdfs:Class ;
  rdfs:label "lifetime offspring quantity" ;
  rdfs:comment "The proportion or number of offspring born over the reproductive life of a female organism." ;
  rdfs:subClassOf obo:VT_1000189 .

obo:VT_0001319 a rdfs:Class ;
  rdfs:label "pupil shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the aperture of the iris through which light rays enter the eye." ;
  rdfs:subClassOf obo:VT_0001317 .

obo:VT_0003491 a rdfs:Class ;
  rdfs:label "voluntary movement trait" ;
  rdfs:comment "Any measurable or observable characteristic related to coordinated movements executed with a purpose that can be improved by learning and/or experience." ;
  rdfs:subClassOf obo:VT_0010444 .

obo:VT_0010635 a rdfs:Class ;
  rdfs:label "xenobiotic pharmacokinetics trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the absorption, distribution, metabolism or elimination of a foreign compound." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0006237 a rdfs:Class ;
  rdfs:label "choroid blood vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the blood vessels of the choroid." ;
  rdfs:subClassOf obo:VT_0001614 , obo:VT_0005098 .

obo:VT_0003989 a rdfs:Class ;
  rdfs:label "barrel cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the discrete functional unit of the somatosensory cortex that processes tactile information derived from the vibrissae." ;
  rdfs:subClassOf obo:VT_0000860 .

obo:VT_0003940 a rdfs:Class ;
  rdfs:label "dermatome morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lateral portion of the embryonic somite that is fated to become the dermis." ;
  rdfs:subClassOf obo:VT_0003941 .

obo:VT_0011166 a rdfs:Class ;
  rdfs:label "bone marrow ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in bone marrow, the soft tissue that fills the cavities of bones. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011068 , obo:VT_0011165 .

obo:VT_0000049 a rdfs:Class ;
  rdfs:label "middle ear morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the components of the tympanic cavity or its ossicles." ;
  rdfs:subClassOf obo:VT_0002102 .

obo:VT_0003763 a rdfs:Class ;
  rdfs:label "thymus physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0003762 , obo:VT_0010254 .

obo:VT_0011068 a rdfs:Class ;
  rdfs:label "bone ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in bone, the osseous tissue forming a part of the skeleton; consists of a dense outer layer surrounded by the periosteum, and an inner spongy substance. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011067 , obo:VT_0011284 .

obo:VT_0010449 a rdfs:Class ;
  rdfs:label "hindlimb muscle mass" ;
  rdfs:comment "The amount of matter in the muscle tissue of the posterior/inferior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0010107 , obo:VT_1000689 .

obo:VT_0002753 a rdfs:Class ;
  rdfs:label "heart left ventricle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003921 , obo:VT_0010298 .

obo:VT_0001281 a rdfs:Class ;
  rdfs:label "vibrissa length" ;
  rdfs:comment "The distance from point to point along the longest axis of the stiff hairs projecting from the face, which act as touch receptors." ;
  rdfs:subClassOf obo:VT_0002098 .

obo:VT_0011229 a rdfs:Class ;
  rdfs:label "substantia nigra molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the substantia nigra of the brain, the layer of grey substance that separates the posterior parts of the cerebral peduncles (tegmentum mesencephali) from the anterior parts; it normally includes a posterior compact part with many pigmented cells (pars compacta) and an anterior reticular part whose cells contain little pigment (pars reticularis)." ;
  rdfs:subClassOf obo:VT_0000836 , obo:VT_0011289 .

obo:VT_0008251 a rdfs:Class ;
  rdfs:label "phagocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of cells capable of ingesting particulate matter via phagocytosis." ;
  rdfs:subClassOf obo:VT_0008246 .

obo:VT_0010864 a rdfs:Class ;
  rdfs:label "forebrain serotonin amount" ;
  rdfs:comment "The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of a monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0010838 , obo:VT_0010876 .

obo:VT_0004276 a rdfs:Class ;
  rdfs:label "medial ganglionic eminence morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a distinct elevation of a transient proliferating cell mass of the fetal 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:VT_0004274 .

obo:VT_0001253 a rdfs:Class ;
  rdfs:label "body height" ;
  rdfs:comment "The vertical dimension of the body of an organism, usually measured from the top of the head to the bottom of feet or hindlimbs." ;
  rdfs:subClassOf obo:VT_0100005 .

obo:VT_0010009 a rdfs:Class ;
  rdfs:label "femur mass" ;
  rdfs:comment "The amount of matter in the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_1000369 .

obo:VT_0000009 a rdfs:Class ;
  rdfs:label "obsolete red blood cell quantity" ;
  rdfs:comment "OBSOLETE. Replace with VT:00001586, erythrocyte quantity." .

obo:VT_0008472 a rdfs:Class ;
  rdfs:label "spleen secondary B follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nodules of antigen-activated, differentiating B cells, follicular dendritic cells, antigen-presenting T cells and macrophages in the spleen white pulp." ;
  rdfs:subClassOf obo:VT_0008470 .

obo:VT_0010270 a rdfs:Class ;
  rdfs:label "colostrum steroid amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of members of the hormone family that includes estrogens, progesterone, glucocorticoids, and androgens." ;
  rdfs:subClassOf obo:VT_0010269 .

obo:VT_0010422 a rdfs:Class ;
  rdfs:label "femoral fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the long bone of the thigh." ;
  rdfs:subClassOf obo:VT_0015001 .

obo:VT_0011277 a rdfs:Class ;
  rdfs:label "soleus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the superficial flat broad muscle of the calf that is responsible for plantar flexion of the foot." ;
  rdfs:subClassOf obo:VT_0003081 .

obo:VT_0011247 a rdfs:Class ;
  rdfs:label "large intestine ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the distal portion of the digestive tube that extends from the ileocecal valve to the anus. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011246 .

obo:VT_0010515 a rdfs:Class ;
  rdfs:label "blood fibronectin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole, blood, serum, or plasma of this glycoprotein that binds to integrins." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0000175 a rdfs:Class ;
  rdfs:label "hemodynamics trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the circulation of blood throughout the body, including both the movement and the forces created by the movement." ;
  rdfs:subClassOf obo:VT_0000171 .

obo:VT_0010138 a rdfs:Class ;
  rdfs:label "lymphatic vessel cell quantity" ;
  rdfs:comment "The proportion or number of cells in the network of vessels which carries lymph around the body." ;
  rdfs:subClassOf obo:VT_0001879 .

obo:VT_0000803 a rdfs:Class ;
  rdfs:label "transverse gyrus of Heschl morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the area of the temporal lobe concerned with hearing." ;
  rdfs:subClassOf obo:VT_0015035 .

obo:VT_0000222 a rdfs:Class ;
  rdfs:label "neutrophil quantity" ;
  rdfs:comment "The proportion or number of the granular leukocytes that have a three- to five-lobed nucleus and a cytoplasm containing inconspicuous granules." ;
  rdfs:subClassOf obo:VT_0000334 , obo:VT_0005065 .

obo:VT_0010950 a rdfs:Class ;
  rdfs:label "blood angiotensin I amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this hormone, a decapeptide that is cleaved from precursor angiotensin by renin. It is converted to angiotensin II by angiotensin converting enzyme." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0000217 a rdfs:Class ;
  rdfs:label "leukocyte quantity" ;
  rdfs:comment "The proportion or number of nucleated cells of the myeloid or lymphoid lineages, found in blood or other tissue." ;
  rdfs:subClassOf obo:VT_0000237 , obo:VT_0008246 , obo:VT_0010191 .

obo:VT_0003704 a rdfs:Class ;
  rdfs:label "hair follicle development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the tubular invaginations of the epidermis from which the hair shaft develops." ;
  rdfs:subClassOf obo:VT_0010008 .

obo:VT_0006078 a rdfs:Class ;
  rdfs:label "nipple morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the erectile protuberance at the tip of the mammary gland in which the mammary ducts terminate and from which milk can be secreted." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0002102 a rdfs:Class ;
  rdfs:label "ear morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ of hearing, responsible for maintaining equilibrium as well as sensing sound and divided in mammals into the external ear, the middle ear, and the inner ear." ;
  rdfs:subClassOf obo:VT_0000432 , obo:VT_0015066 .

obo:VT_0006127 a rdfs:Class ;
  rdfs:label "great vessel orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the pulmonary vessels and aorta in relation to the heart." ;
  rdfs:subClassOf obo:VT_0000135 .

obo:VT_0001045 a rdfs:Class ;
  rdfs:label "enteric ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the groups of nerve cell bodies associated with the enteric neurons." ;
  rdfs:subClassOf obo:VT_0001044 .

obo:VT_1000666 a rdfs:Class ;
  rdfs:label "femur width" ;
  rdfs:comment "The distance from side to side of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_1000369 .

obo:VT_0004062 a rdfs:Class ;
  rdfs:label "heart right atrium capacity" ;
  rdfs:comment "The volume of or amount contained in the right upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000005 .

obo:VT_0001074 a rdfs:Class ;
  rdfs:label "vagus nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the autonomic, sensory and motor axons of the tenth cranial nerve to the pharynx, larynx, trachea, lungs, heart and GI tract." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0001778 a rdfs:Class ;
  rdfs:label "brown adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of the thermogenic form of adipose capable of rapid liberation of energy; composed of brown adipocytes, which contain multiple small droplets of triglycerides and a high number of mitochondria." ;
  rdfs:subClassOf obo:VT_0002971 , obo:VT_0005452 .

obo:VT_0000034 a rdfs:Class ;
  rdfs:label "vestibule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cavity between the semicircular canals and the cochlea of the inner ear." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0002285 a rdfs:Class ;
  rdfs:label "tracheal ciliated epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial lining of the trachea which contains numerous ciliated cells." ;
  rdfs:subClassOf obo:VT_0002282 .

obo:VT_0001723 a rdfs:Class ;
  rdfs:label "yolk sac vascular plexus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the pattern of the primary (honeycomb-like) vasculature of the yolk sac prior to remodeling into a mature vascular network." ;
  rdfs:subClassOf obo:VT_0003229 .

obo:VT_0000857 a rdfs:Class ;
  rdfs:label "cerebellum foliation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of small offshoots of the cerebellar lobules." ;
  rdfs:subClassOf obo:VT_0000854 .

obo:VT_0010116 a rdfs:Class ;
  rdfs:label "pectoralis muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of either or both of the two muscles that make up the upper and fore part of the chest that adduct and rotate the forelimb and lift the ribs." ;
  rdfs:subClassOf obo:VT_0003346 , obo:VT_0003398 .

obo:VT_0005180 a rdfs:Class ;
  rdfs:label "blood testosterone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a potent androgen that promotes development of male secondary sex characteristics and the development of spermatozoa and may regulate sexual desire and help maintain bone and muscle health in both males and females." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0100006 a rdfs:Class ;
  rdfs:label "anatomical relation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location of a part of the body in relation to the body as a whole or to other parts." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0004278 a rdfs:Class ;
  rdfs:label "caudal ganglionic eminence morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the caudally located, distinct elevation of a transient proliferating cell mass of the fetal subventricular zone, located adjacent to the lateral ventricle." ;
  rdfs:subClassOf obo:VT_0004274 .

obo:VT_0003248 a rdfs:Class ;
  rdfs:label "glutaminergic neuron quantity" ;
  rdfs:comment "The proportion or number of neurons that utilize glutamate as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0003247 , obo:VT_0015026 .

obo:VT_0010996 a rdfs:Class ;
  rdfs:label "blood 3-hydroxybutyrate amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a hydroxy fatty acid anion that is the conjugate base of 3-hydroxybutyric acid, obtained by deprotonation of the carboxy group." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0002915 a rdfs:Class ;
  rdfs:label "synaptic depression trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the duration of the reduction of effectiveness of synaptic connections between neurons and target after repetitive stimulation." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0006021 a rdfs:Class ;
  rdfs:label "Reissner membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the Reissner's membrane which separates the cochlear duct from the vestibular canal, i.e., the endolymph of the scala media from the perilymph of the scala vestibuli; the Reissner membrane consists of squamous epithelial cells with microvilli toward the ductus, a basement membrane, and a thin layer of connective tissue toward the scala." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0010546 a rdfs:Class ;
  rdfs:label "kidney glomerulus integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the capillary loops at the beginning of each nephric tubule in the kidney." ;
  rdfs:subClassOf obo:VT_0005325 , obo:VT_0010580 .

obo:VT_0010949 a rdfs:Class ;
  rdfs:label "tympanic cavity integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the small, air-filled, membrane-lined chamber bound externally by the tympanic membrane and containing three osicles that vibrate in response to sound waves." ;
  rdfs:subClassOf obo:VT_0010948 .

obo:VT_0002439 a rdfs:Class ;
  rdfs:label "plasma cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a terminally differentiated, post-mitotic, short-lived cell of the B cell lineage devoted to producing large amounts of immunoglobulin." ;
  rdfs:subClassOf obo:VT_0008171 .

obo:VT_0010961 a rdfs:Class ;
  rdfs:label "potassium ion homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to any process involved in the maintenance of an internal equilibrium of potassium ions within an organism or cell." ;
  rdfs:subClassOf obo:VT_0001765 .

obo:VT_0002876 a rdfs:Class ;
  rdfs:label "thyroid gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:VT_0002164 .

obo:VT_0002761 a rdfs:Class ;
  rdfs:label "hippocampus mossy fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the axons of neuronal cells in the dentate gyrus." ;
  rdfs:subClassOf obo:VT_0000807 .

obo:VT_0003162 a rdfs:Class ;
  rdfs:label "lateral semicircular canal size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lateral long bony tube of the labyrinth that is involved in the sense of balance." ;
  rdfs:subClassOf obo:VT_0000037 .

obo:VT_3000003 a rdfs:Class ;
  rdfs:label "fibrin formation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process whereby prothrombin is activated to thrombin which acts to convert fibrinogen to fibrin, allowing for formation of a fibrin clot." ;
  rdfs:subClassOf obo:VT_0000260 .

obo:VT_0004479 a rdfs:Class ;
  rdfs:label "oval window morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the oval opening on the medial wall of the tympanic cavity leading into the vestibule, close to the foot of the stapes." ;
  rdfs:subClassOf obo:VT_0000049 .

obo:VT_0000846 a rdfs:Class ;
  rdfs:label "medulla oblongata morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the most caudal region of the brainstem that lies directly rostral to the spinal cord; includes regions responsible for autonomic functions such as digestion, breathing and control of heart rate." ;
  rdfs:subClassOf obo:VT_0000841 .

obo:VT_0001731 a rdfs:Class ;
  rdfs:label "postnatal growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size or mass of an organism after birth." ;
  rdfs:subClassOf obo:VT_0100007 .

obo:VT_0010489 a rdfs:Class ;
  rdfs:label "response to alcohol trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of alcohol exposure." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0005120 a rdfs:Class ;
  rdfs:label "blood growth hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the hormone that promotes body growth, fat mobilization, and inhibition of glucose utilization." ;
  rdfs:subClassOf obo:VT_0005116 .

obo:VT_0009332 a rdfs:Class ;
  rdfs:label "splenocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells of the spleen." ;
  rdfs:subClassOf obo:VT_0000689 .

obo:VT_0008761 a rdfs:Class ;
  rdfs:label "immunoglobulin light chain V-J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which V and J gene segments of the immunoglobulin light chain are recombined." ;
  rdfs:subClassOf obo:VT_0008755 .

obo:VT_0001378 a rdfs:Class ;
  rdfs:label "ejaculation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the propulsion of semen from the genital ducts and the urethra to the exterior." ;
  rdfs:subClassOf obo:VT_0003698 .

obo:VT_0000833 a rdfs:Class ;
  rdfs:label "thalamus cell quantity" ;
  rdfs:comment "The proportion or number of cells in the large ovoid mass of paired bodies containing mostly grey matter and forming part of the lateral wall of the third ventricle of the brain." ;
  rdfs:subClassOf obo:VT_0000832 .

obo:VT_0100031 a rdfs:Class ;
  rdfs:label "mammary blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the volume of blood that flows through the vascular system of the mammary gland." ;
  rdfs:subClassOf obo:VT_0001881 .

obo:VT_1000385 a rdfs:Class ;
  rdfs:label "total vertebra quantity" ;
  rdfs:comment "The total number of bony segments constituting the vertebral column." ;
  rdfs:subClassOf obo:VT_0000138 .

obo:VT_0010372 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9-C16:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with a sixteen-carbon backbone and a cis double bond at C-9." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0005250 a rdfs:Class ;
  rdfs:label "Sertoli cell quantity" ;
  rdfs:comment "The proportion or number of cells of the seminiferous tubules that create the blood-testes barrier and enable spermatogenesis." ;
  rdfs:subClassOf obo:VT_0002784 .

obo:VT_0006151 a rdfs:Class ;
  rdfs:label "cornea curvature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree or shape of the bend in the transparent anterior portion of the fibrous coat of the eye that serves as the chief refractory structure." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0000795 a rdfs:Class ;
  rdfs:label "postcentral gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the parietal lobe that receives general sensation from the body." ;
  rdfs:subClassOf obo:VT_0000794 .

obo:VT_0011288 a rdfs:Class ;
  rdfs:label "midbrain ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the middle division of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes a ventral part containing the cerebral peduncles and a dorsal tectum containing the corpora quadrigemina and that surrounds the aqueduct of Sylvius connecting the third and fourth ventricles). Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010791 , obo:VT_0011289 .

obo:VT_0010800 a rdfs:Class ;
  rdfs:label "testis molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the  male reproductive gland(s) where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0001146 .

obo:VT_0000315 a rdfs:Class ;
  rdfs:label "urine hemoglobin amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the oxygen-carrying protein of erythrocytes." ;
  rdfs:subClassOf obo:VT_0005160 .

obo:VT_0005499 a rdfs:Class ;
  rdfs:label "olfactory system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organs involved in smell." ;
  rdfs:subClassOf obo:VT_0005394 .

obo:VT_0002442 a rdfs:Class ;
  rdfs:label "leukocyte physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in any of the white blood cells (basophils, eosinophils, neutrophils, lymphocytes, dendritic cells, macrophages, mast cells, or monocytes)." ;
  rdfs:subClassOf obo:VT_0001819 , obo:VT_0010249 .

obo:VT_0000952 a rdfs:Class ;
  rdfs:label "central nervous system glial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the non-neuronal cells of the central nervous system that form the myelin insulation of nervous pathways, guide neuronal migration during development, and exchange metabolites with neurons." ;
  rdfs:subClassOf obo:VT_0003634 .

obo:VT_0003691 a rdfs:Class ;
  rdfs:label "microglial cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the small, migratory, phagocytic, interstitial cells derived from myeloid progenitor cells and found in the parenchyma of the central nervous system; microglia are scavengers, engulfing dead cells and other debris, and in Alzheimer's disease, microglia are found associated with dying nerve cells and amyloid plaques." ;
  rdfs:subClassOf obo:VT_0002451 , obo:VT_0003690 .

obo:VT_0000341 a rdfs:Class ;
  rdfs:label "bile color" ;
  rdfs:comment "The visually perceived hue of the fluid secreted by the liver through the bile duct, determined by relative levels of bile pigments." ;
  rdfs:subClassOf obo:VT_0005085 .

obo:VT_0010326 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9-C14:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with a fourteen-carbon backbone and a cis double bond at C-9." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0003479 a rdfs:Class ;
  rdfs:label "nerve fiber response intensity" ;
  rdfs:comment "The degree of de- or hyperpolarization or number of action potentials in response to a specific stimulus recorded in a single or several nerve fiber(s)." ;
  rdfs:subClassOf obo:VT_0003477 .

obo:VT_0010703 a rdfs:Class ;
  rdfs:label "blood HDL particle size" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the high density lipoprotein particles found in whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0010702 .

obo:VT_0000062 a rdfs:Class ;
  rdfs:label "heart muscle trabeculae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the supporting bundles of muscular fibers lining the walls of the heart." ;
  rdfs:subClassOf obo:VT_0005329 .

obo:VT_0002582 a rdfs:Class ;
  rdfs:label "extraembryonic tissue organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the membranes involved with the embryo's protection and nutrition." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0011057 a rdfs:Class ;
  rdfs:label "retina molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the thin layer of neural tissue lining the back of the eyeball which contains visual receptors." ;
  rdfs:subClassOf obo:VT_0001325 .

obo:VT_0010265 a rdfs:Class ;
  rdfs:label "colostrum somatic cell quantity" ;
  rdfs:comment "The proportion or number of somatic cells (leukocytes and epithelial cells) present in colostrum." ;
  rdfs:subClassOf obo:VT_0010256 .

obo:VT_0000276 a rdfs:Class ;
  rdfs:label "heart right ventricle cell size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cells in the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0002754 .

obo:VT_0003800 a rdfs:Class ;
  rdfs:label "digit quantity" ;
  rdfs:comment "The proportion or number of fingers or toes, or their corresponding parts in other vertebrates." ;
  rdfs:subClassOf obo:VT_0002110 .

obo:VT_0004491 a rdfs:Class ;
  rdfs:label "outer hair cell stereociliary bundle orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of outer hair cell (OHC) stereociliary bundles in relation to the hair cells." ;
  rdfs:subClassOf obo:VT_0000892 , obo:VT_0001028 .

obo:VT_0000716 a rdfs:Class ;
  rdfs:label "immune system cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0000685 .

obo:VT_0010478 a rdfs:Class ;
  rdfs:label "blood lipase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which catalyzes the formation or hydrolysis of lipids." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0011005 a rdfs:Class ;
  rdfs:label "tissue deoxyribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in a tissue of deoxyribonucleic acid (DNA), the molecule composed of the sugar deoxyribose, phosphate groups and any combination of the bases adenine, guanine, cytosine, and/or thymine." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0004361 a rdfs:Class ;
  rdfs:label "ulna curvature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree or shape of the bend in the medial and larger of the two bones of the forearm or lower forelimb; fused with the radius in some species." ;
  rdfs:subClassOf obo:VT_0005108 .

obo:VT_0000889 a rdfs:Class ;
  rdfs:label "cerebellar molecular layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outermost layer of the cerebral cortex that contains the parallel fibers of the granule cells, interneurons such as stellate and basket cells, and the dendrites of the underlying Purkinje cells." ;
  rdfs:subClassOf obo:VT_0004097 .

obo:VT_0002255 a rdfs:Class ;
  rdfs:label "glottis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the vocal apparatus of the larynx, which includes the vocal cords and the opening between them." ;
  rdfs:subClassOf obo:VT_0002249 .

obo:VT_0000818 a rdfs:Class ;
  rdfs:label "amygdala morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the almond-shaped body of basal nuclei anterior to the inferior horn of the lateral ventricle of the brain, within the temporal lobe; this area is involved in aggression and fear responses." ;
  rdfs:subClassOf obo:VT_0004166 .

obo:VT_0010383 a rdfs:Class ;
  rdfs:label "milk cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of these precursors to steroid hormones and bile salts; also components of plasma membranes." ;
  rdfs:subClassOf obo:VT_0003947 , obo:VT_0010261 .

obo:VT_0010598 a rdfs:Class ;
  rdfs:label "thoracic aorta cellular protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of intracellular proteins in the part of the descending aorta superior to the aortic hiatus of the diaphragm." ;
  rdfs:subClassOf obo:VT_0010568 .

obo:VT_0007030 a rdfs:Class ;
  rdfs:label "heart left ventricle capacity" ;
  rdfs:comment "The volume of or amount contained in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0002753 .

obo:VT_0004195 a rdfs:Class ;
  rdfs:label "kidney calyx morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the branches of the renal pelvis that surround each renal papilla and collect urine." ;
  rdfs:subClassOf obo:VT_0004194 .

obo:VT_0011091 a rdfs:Class ;
  rdfs:label "salivary gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the saliva-secreting glands of the oral cavity. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011090 .

obo:VT_0003431 a rdfs:Class ;
  rdfs:label "parathyroid gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the paired endocrine gland that normally produces parathyroid hormone (PTH) that regulates calcium and phosphorus metabolism." ;
  rdfs:subClassOf obo:VT_0002164 .

obo:VT_0000481 a rdfs:Class ;
  rdfs:label "intestinal cell quantity" ;
  rdfs:comment "The proportion or number of cells comprising the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0000479 .

obo:VT_0006162 a rdfs:Class ;
  rdfs:label "eyelid thickness" ;
  rdfs:comment "The distance between the external and internal surfaces of the skin folds covering the front of the eyeball." ;
  rdfs:subClassOf obo:VT_0001340 .

obo:VT_0010462 a rdfs:Class ;
  rdfs:label "defecation behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism with regard to the expulsion of feces from the body." ;
  rdfs:subClassOf obo:VT_0010461 .

obo:VT_0003594 a rdfs:Class ;
  rdfs:label "urethra size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the canal that leads from the bladder and discharges urine externally." ;
  rdfs:subClassOf obo:VT_0000537 .

obo:VT_0002543 a rdfs:Class ;
  rdfs:label "phalanx length" ;
  rdfs:comment "The distance from point to point along the longest axis of any of the long bones of the digits." ;
  rdfs:subClassOf obo:VT_0005306 .

obo:VT_0004242 a rdfs:Class ;
  rdfs:label "plasmacytoid dendritic cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of phagocytic dendritic cells that are morphologically similar to plasma cells, but do not express B lineage markers, and produce large amounts of alpha/beta interferons (IFN-/) in response to viral and bacterial stimuli; plasmacytoid dendritic cells are found in the thymic medulla and lymph node T cell areas and are responsible for immune tolerance." ;
  rdfs:subClassOf obo:VT_0005461 .

obo:VT_0006057 a rdfs:Class ;
  rdfs:label "blood vessel endothelial cell quantity" ;
  rdfs:comment "The proportion or number of cells that line blood vessels." ;
  rdfs:subClassOf obo:VT_0006055 .

obo:VT_0004919 a rdfs:Class ;
  rdfs:label "positive T cell selection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of sparing immature T cells which react with self-MHC protein complexes with low affinity levels from apoptotic death." ;
  rdfs:subClassOf obo:VT_0004917 .

obo:VT_0005547 a rdfs:Class ;
  rdfs:label "Muller cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the elongated neuroglial cells that traverse all the layers of the retina and that act as supporting elements." ;
  rdfs:subClassOf obo:VT_0001325 .

obo:VT_0005488 a rdfs:Class ;
  rdfs:label "bronchial epithelial cell quantity" ;
  rdfs:comment "The proportion or number of cells lining the inner surfaces of the bronchi." ;
  rdfs:subClassOf obo:VT_0002264 .

obo:VT_1000526 a rdfs:Class ;
  rdfs:label "adipose fatty acid C16:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C16H32O2) present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005286 .

obo:VT_0011218 a rdfs:Class ;
  rdfs:label "blood immunoglobulin G2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin class G2." ;
  rdfs:subClassOf obo:VT_0001805 .

obo:VT_0004139 a rdfs:Class ;
  rdfs:label "gastric parietal cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the gastric acid producing epithelial cells that are distributed throughout the length of the gastric gland." ;
  rdfs:subClassOf obo:VT_0003892 .

obo:VT_0003651 a rdfs:Class ;
  rdfs:label "axon outgrowth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of an axon to extend from a neuron cell body." ;
  rdfs:subClassOf obo:VT_0006008 .

obo:VT_0010179 a rdfs:Class ;
  rdfs:label "immune system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the organs or cells associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_1000783 .

obo:VT_0002464 a rdfs:Class ;
  rdfs:label "basophil physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the granular leukocytes that are characterized by pale-staining, lobate nucleus and cytoplasm and contain dark-staining granules of varying size and are stained by basic dyes." ;
  rdfs:subClassOf obo:VT_0002462 .

obo:VT_0010090 a rdfs:Class ;
  rdfs:label "pelvic girdle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony structure by which the lower or hind limbs are attached to the axial skeleton." ;
  rdfs:subClassOf obo:VT_0010091 .

obo:VT_0010311 a rdfs:Class ;
  rdfs:label "milk fatty acid C9:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a nine-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0015044 a rdfs:Class ;
  rdfs:label "beak morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the horny projection of the face containing the jaws, mouth and nares and lacking teeth." ;
  rdfs:subClassOf obo:VT_0003743 , obo:VT_0015066 .

obo:VT_1000720 a rdfs:Class ;
  rdfs:label "nonfunctional nipple quantity" ;
  rdfs:comment "The proportion or number of nipples incapable of secreting milk." ;
  rdfs:subClassOf obo:VT_1000206 .

obo:VT_0010729 a rdfs:Class ;
  rdfs:label "olfactory discrimination memory trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to exhibit a differential response to olfactory stimuli that is achieved by the reinforcement of the desired response for each particular olfactory stimulus." ;
  rdfs:subClassOf obo:VT_0010728 .

obo:VT_0010757 a rdfs:Class ;
  rdfs:label "heart integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the heart." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0002182 a rdfs:Class ;
  rdfs:label "astrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the large neuroglia cells of nervous tissue." ;
  rdfs:subClassOf obo:VT_0000952 .

obo:VT_0003730 a rdfs:Class ;
  rdfs:label "photoreceptor inner segment morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the photoreceptor layer which contains the machinery of the cell (mitochondria, golgi, endoplasmic reticulum, etc)." ;
  rdfs:subClassOf obo:VT_0001004 .

obo:VT_0000449 a rdfs:Class ;
  rdfs:label "nasal bridge width" ;
  rdfs:comment "The distance from side to side across the upper part of the ridge of the nose." ;
  rdfs:subClassOf obo:VT_0002233 .

obo:VT_0006228 a rdfs:Class ;
  rdfs:label "iris size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the adjustable membrane, composed of the stroma and pigmented epithelium, located just in front of the crystalline lens within the eye." ;
  rdfs:subClassOf obo:VT_0001322 .

obo:VT_0003442 a rdfs:Class ;
  rdfs:label "blood glycerol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma this trihydroxy alcohol, the backbone of lipids, which is important for gluconeogenesis during starvation." ;
  rdfs:subClassOf obo:VT_0003949 .

obo:VT_0001239 a rdfs:Class ;
  rdfs:label "epidermis stratum granulosum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the layer of flattened cells containing basophilic granules of keratohyalin and lying just above the stratum spinosum (spiny layer) of the epidermis." ;
  rdfs:subClassOf obo:VT_0001216 .

obo:VT_0001757 a rdfs:Class ;
  rdfs:label "urine molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the fluid and dissolved substances that is excreted by the kidneys." ;
  rdfs:subClassOf obo:VT_0010912 , obo:VT_0011378 .

obo:VT_1000126 a rdfs:Class ;
  rdfs:label "adipose thickness" ;
  rdfs:comment "The distance between the surfaces of a layer of fat-storing tissue." ;
  rdfs:subClassOf obo:VT_0005452 .

obo:VT_0002992 a rdfs:Class ;
  rdfs:label "sebaceous lipid secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of lipids onto the hair and skin from the sebaceous glands." ;
  rdfs:subClassOf obo:VT_0002991 .

obo:VT_0010956 a rdfs:Class ;
  rdfs:label "quinidine metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving quinidine,  an alkaloid that dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes." ;
  rdfs:subClassOf obo:VT_0010638 .

obo:VT_0003666 a rdfs:Class ;
  rdfs:label "sperm capacitation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the change undergone by spermatozoa in the female genital tract that enables them to penetrate and fertilize an egg." ;
  rdfs:subClassOf obo:VT_0003698 .

obo:VT_0001064 a rdfs:Class ;
  rdfs:label "trochlear nerve size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the nerve of the superior oblique muscle." ;
  rdfs:subClassOf obo:VT_0001063 .

obo:VT_0000023 a rdfs:Class ;
  rdfs:label "obsolete ear orientation trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the location or placement of the outer ears in relation to each other or to the skull.
replace with VT:0010274""" .

obo:VT_1000149 a rdfs:Class ;
  rdfs:label "intercostal muscle mass" ;
  rdfs:comment "The amount of matter in the respiratory muscles that arise from the lower border of one rib and insert into the upper border of the adjoining rib." ;
  rdfs:subClassOf obo:VT_0010114 .

obo:VT_0004368 a rdfs:Class ;
  rdfs:label "stria vascularis blood vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the blood vessels supplying the stria vascularis in the cochlea of the inner ear." ;
  rdfs:subClassOf obo:VT_0000048 , obo:VT_0001614 .

obo:VT_0011039 a rdfs:Class ;
  rdfs:label "heart left ventricle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the left lower chamber of the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010561 , obo:VT_0010792 .

obo:VT_0001562 a rdfs:Class ;
  rdfs:label "blood calcium amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this metallic bivalent element with atomic symbol Ca and atomic number 20." ;
  rdfs:subClassOf obo:VT_0000068 , obo:VT_0010499 , obo:VT_0010998 .

obo:VT_0005675 a rdfs:Class ;
  rdfs:label "gall bladder size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the gall bladder, the organ that serves as a storage reservoir for bile." ;
  rdfs:subClassOf obo:VT_0005084 .

obo:VT_0000759 a rdfs:Class ;
  rdfs:label "skeletal muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0002108 .

obo:VT_0010638 a rdfs:Class ;
  rdfs:label "xenobiotic metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving a foreign compound." ;
  rdfs:subClassOf obo:VT_0010635 .

obo:VT_0010300 a rdfs:Class ;
  rdfs:label "vasculogenesis" ;
  rdfs:comment "Any measurable or observable characteristic related to the initial establishment of the vascular network." ;
  rdfs:subClassOf obo:VT_0000122 .

obo:VT_0011233 a rdfs:Class ;
  rdfs:label "cartilage molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the nonvascular, resilient, flexible connective tissue found primarily in joints, walls of the thorax, and tubular structures, but which also comprises most of the skeleton in early fetal life; some species have skeletons that are completely composed of cartilage which is never ossified." ;
  rdfs:subClassOf obo:VT_0000163 , obo:VT_0011282 .

obo:VT_0011097 a rdfs:Class ;
  rdfs:label "stomach ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the sac-like structure of the digestive canal between the esophagus and the small intestine. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011096 .

obo:VT_0000615 a rdfs:Class ;
  rdfs:label "palatine gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the salivary gland of the hard palate." ;
  rdfs:subClassOf obo:VT_0003791 .

obo:VT_0003151 a rdfs:Class ;
  rdfs:label "tunnel of Corti morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the triangular, fluid-filled space normally found between the inner and outer rows of supporting pillar cells in the organ of Corti." ;
  rdfs:subClassOf obo:VT_0000042 .

obo:VT_0010831 a rdfs:Class ;
  rdfs:label "midbrain/pons epinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0010828 , obo:VT_0010871 .

obo:VT_0003565 a rdfs:Class ;
  rdfs:label "glucagon secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of this hormone secreted by the alpha cells of the islets of Langerhans; it normally plays a role in regulation of blood glucose concentration, ketone metabolism, and other biochemical and physiological processes." ;
  rdfs:subClassOf obo:VT_0002694 , obo:VT_0003563 .

obo:VT_0010043 a rdfs:Class ;
  rdfs:label "ovarian follicle physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the ovarian follicle." ;
  rdfs:subClassOf obo:VT_0003507 .

obo:VT_0004189 a rdfs:Class ;
  rdfs:label "alveolar process morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the projecting ridge of bone that holds the tooth sockets." ;
  rdfs:subClassOf obo:VT_0000454 .

obo:VT_0000974 a rdfs:Class ;
  rdfs:label "obsolete hair guard neuron morphology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the shape, structure, color, or pattern of the subcutaneous mechanoreceptors that innervate guard hairs." .

obo:VT_1000284 a rdfs:Class ;
  rdfs:label "tibia strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the medial and larger of the two bones of the lower leg to withstand the application of force without yielding or breaking." ;
  rdfs:subClassOf obo:VT_0001542 .

obo:VT_0010545 a rdfs:Class ;
  rdfs:label "blood adiponectin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this protein hormone secreted by adipose tissue and the placenta; involved in glucose regulation and fatty acid oxidation." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0005119 a rdfs:Class ;
  rdfs:label "blood thyroid-stimulating hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the hormone that stimulates the growth and function of the thyroid gland." ;
  rdfs:subClassOf obo:VT_0005116 .

obo:VT_0000153 a rdfs:Class ;
  rdfs:label "obsolete blood circulatory physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable functional characteristic related to the function of or processes in the blood or vasculature." .

obo:VT_0000528 a rdfs:Class ;
  rdfs:label "kidney development initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of the induction and/or differentiation of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0000527 .

obo:VT_0003634 a rdfs:Class ;
  rdfs:label "glial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the non-neuronal cells of the nervous system that form the myelin insulation of nervous pathways, guide neuronal migration during development, and exchange metabolites with neurons." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0003425 a rdfs:Class ;
  rdfs:label "optic vesicle development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the hollow outgrowth from the lateral aspects of the embryonic forebrain from which the retina and optic nerve develop." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0004480 a rdfs:Class ;
  rdfs:label "round window morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the opening on the medial wall of the middle ear leading into the cochlea, closed in life by the secondary tympanic membrane; serves to regulate fluid pressure in the inner ear." ;
  rdfs:subClassOf obo:VT_0000049 .

obo:VT_0010853 a rdfs:Class ;
  rdfs:label "hypothalamus 5-hydroxyindoleacetic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of indole-3-acetic acid substituted by a hydroxy group at C-5." ;
  rdfs:subClassOf obo:VT_0010836 , obo:VT_0010874 .

obo:VT_0010628 a rdfs:Class ;
  rdfs:label "blood globulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the globular proteins that have higher molecular weights and water solubility than the albumins." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0002181 a rdfs:Class ;
  rdfs:label "brain cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any or all brain cell types." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0000863 a rdfs:Class ;
  rdfs:label "secondary somatosensory cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the area of the upper bank of the lateral sulcus that is involved in somatic sensation." ;
  rdfs:subClassOf obo:VT_0000859 .

obo:VT_0004022 a rdfs:Class ;
  rdfs:label "cone electrophysiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cells in the outer layer of the retina that are stimulated by wavelengths of light of different colors; essential for color discrimination." ;
  rdfs:subClassOf obo:VT_0005551 .

obo:VT_0001457 a rdfs:Class ;
  rdfs:label "vestibular dark cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the nonsensory epithelial cells located above the vestibular melanocytes and adjacent to the sensory structures in the utricle and in the ampullae at the ends of each of the semicircular canals; these cells provide and maintain the high K+ ionic environment within the vestibular labyrinth and are therefore homologous to the marginal cells of the stria vascularis; they are joined to each other by tight junctions and provide a barrier between endolymph and perilymph." ;
  rdfs:subClassOf obo:VT_0000034 .

obo:VT_0011019 a rdfs:Class ;
  rdfs:label "stellate ganglion ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the stellate ganglion, the postsynaptic neurons formed by the fusion of the inferior cervical and first thoracic ganglia. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011018 .

obo:VT_0001961 a rdfs:Class ;
  rdfs:label "reflex trait" ;
  rdfs:comment "Any measurable or observable characteristic related to an involuntary response to a peripheral stimulus." ;
  rdfs:subClassOf obo:VT_0002067 , obo:VT_0003492 .

obo:VT_0001349 a rdfs:Class ;
  rdfs:label "tear production trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the secretion of watery saline solution by the lacrimal glands." ;
  rdfs:subClassOf obo:VT_0001348 .

obo:VT_0010337 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-11-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a cis double bond at C-11." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010877 a rdfs:Class ;
  rdfs:label "brain dopamine amount" ;
  rdfs:comment "The proportion, quantity or volume in the brain of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0010585 , obo:VT_0010839 .

obo:VT_0010180 a rdfs:Class ;
  rdfs:label "bone marrow cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the cells found in the bone marrow during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0010255 .

obo:VT_0010427 a rdfs:Class ;
  rdfs:label "mesenteric fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the peritoneal fold that encloses the small intestine and connects it to the abdominal wall." ;
  rdfs:subClassOf obo:VT_0015004 .

obo:VT_0002187 a rdfs:Class ;
  rdfs:label "fibula morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lateral and smaller bone of the lower/hind limb." ;
  rdfs:subClassOf obo:VT_0010105 .

obo:VT_0002486 a rdfs:Class ;
  rdfs:label "obsolete serum amyloid protein physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of an acute-phase reaction protein that is a precursor to amyloid A protein; it is present in very high levels during acute inflammatory episodes, and is present in low concentrations in normal sera, but is found at higher concentrations in sera of older persons and in patients with amyloidosis." .

obo:VT_0000244 a rdfs:Class ;
  rdfs:label "obsolete cardiac output amount" ;
  rdfs:comment "OBSOLETE. The proportion, quantity, or volume of blood that is ejected from the heart into the aorta." .

obo:VT_0000992 a rdfs:Class ;
  rdfs:label "primary muscle spindle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the sensory organ in muscle; involved in the stretch reflex and is sensitive to stretch velocity." ;
  rdfs:subClassOf obo:VT_0000991 .

obo:VT_0005116 a rdfs:Class ;
  rdfs:label "blood pituitary hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any of the hormones secreted by the pituitary." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0004094 a rdfs:Class ;
  rdfs:label "M line morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the fine line in the center of the A band of the sarcomere of striated muscle myofibrils." ;
  rdfs:subClassOf obo:VT_0004090 .

obo:VT_0008191 a rdfs:Class ;
  rdfs:label "follicular B cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in resting mature B cells with distinct phenotypic characteristics (CD23-positive, CD21-positive) found typically in the B cell follicle region of the spleen." ;
  rdfs:subClassOf obo:VT_0002459 .

obo:VT_0000825 a rdfs:Class ;
  rdfs:label "lateral ventricle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the horseshoe-shaped cavities of the cerebrum." ;
  rdfs:subClassOf obo:VT_0000823 .

obo:VT_0000492 a rdfs:Class ;
  rdfs:label "rectum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the terminal portion of the intestinal tube adjacent to the anus." ;
  rdfs:subClassOf obo:VT_0000489 .

obo:VT_0002689 a rdfs:Class ;
  rdfs:label "molar morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the most posterior teeth located on either side of the jaw, and characterized by a large crown and broad chewing surface." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0010694 a rdfs:Class ;
  rdfs:label "blood fructosamine amount" ;
  rdfs:comment "The proportion, quantity, or volume in the blood of fructosamine, the compound that results from glycation reactions between a sugar and a primary amine, followed by isomerization via the Amadori rearrangement." ;
  rdfs:subClassOf obo:VT_0010903 .

obo:VT_0011219 a rdfs:Class ;
  rdfs:label "blood serotonin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0005418 , obo:VT_0010484 .

obo:VT_0006068 a rdfs:Class ;
  rdfs:label "horizontal cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the laterally interconnecting neurons in the outer plexiform layer that connect rods of one part of the retina with cones in another part of the retina." ;
  rdfs:subClassOf obo:VT_0000965 , obo:VT_0001325 , obo:VT_0006004 .

obo:VT_0010292 a rdfs:Class ;
  rdfs:label "milk sodium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of sodium, a metallic element." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0005463 a rdfs:Class ;
  rdfs:label "CD4-positive T cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the subset of T lymphocytes that carry the CD4 marker, recognize intravesicular peptides bound to MHC class-II molecules, and turn on antibody production." ;
  rdfs:subClassOf obo:VT_0002444 .

obo:VT_0010842 a rdfs:Class ;
  rdfs:label "midbrain/pons dihydroxyphenylacetic acid (DOPAC) amount" ;
  rdfs:comment "The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010834 , obo:VT_0010872 .

obo:VT_0011188 a rdfs:Class ;
  rdfs:label "CA1 stratum radiatum ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the CA1 stratum radiatum, the part of the hippocampus stratum radiatum lying in area CA1, superficial to the CA1 pyramidal cell layer and deep to the CA1 stratum lucidum-moleculare, continuous with the stratum radiatum of CA2 and bounded by the subiculum. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011300 .

obo:VT_0002932 a rdfs:Class ;
  rdfs:label "joint morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the articulation point of two or more rigid skeletal components (bones, cartilage, or parts of a single bone)." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0011203 a rdfs:Class ;
  rdfs:label "muscle chromium amount" ;
  rdfs:comment "The proportion, quantity, or volume of a trace element that plays a role in glucose metabolism detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0008707 a rdfs:Class ;
  rdfs:label "interleukin-7 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine produced by bone marrow stromal cells that promotes the growth of B-cell precursors and is co-mitogenic with interleukin-2 for mature T-cell activation." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0011259 a rdfs:Class ;
  rdfs:label "forebrain ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010791 , obo:VT_0011258 .

obo:VT_0010027 a rdfs:Class ;
  rdfs:label "milk fatty acid C24:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a twenty-four-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0006089 a rdfs:Class ;
  rdfs:label "saccule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the smaller of the two sacs in the vestibule." ;
  rdfs:subClassOf obo:VT_0004425 .

obo:VT_0005105 a rdfs:Class ;
  rdfs:label "auditory ossicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small bones of the middle ear." ;
  rdfs:subClassOf obo:VT_0000049 , obo:VT_0002114 .

obo:VT_0010888 a rdfs:Class ;
  rdfs:label "tissue protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue of macromolecules consisting of long sequences of amino acids in peptide linkage." ;
  rdfs:subClassOf obo:VT_0010120 .

obo:VT_0011117 a rdfs:Class ;
  rdfs:label "eyelid pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the skin folds covering the front of the eyeball." ;
  rdfs:subClassOf obo:VT_0001324 , obo:VT_0001340 .

obo:VT_0000643 a rdfs:Class ;
  rdfs:label "adrenal central medulla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the inner portion of the adrenal gland, consisting mainly of chromaffin cells which are responsible for secretion of epinephrine." ;
  rdfs:subClassOf obo:VT_0000639 .

obo:VT_1000238 a rdfs:Class ;
  rdfs:label "feather development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the surface covering of birds, made of keratin." ;
  rdfs:subClassOf obo:VT_0010008 .

obo:VT_0010768 a rdfs:Class ;
  rdfs:label "kidney superoxide dismutase activity" ;
  rdfs:comment "The degree of function or response in the kidney of this family of enzymes that convert naturally-occurring but harmful superoxide radicals to molecular oxygen and hydrogen peroxide." ;
  rdfs:subClassOf obo:VT_0010558 , obo:VT_0010763 .

obo:VT_0000904 a rdfs:Class ;
  rdfs:label "superior colliculus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired superior eminence of the mesencephalic tectum that is involved in auditory processing." ;
  rdfs:subClassOf obo:VT_0000899 .

obo:VT_0006105 a rdfs:Class ;
  rdfs:label "tectum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the rostral part of the midbrain roof." ;
  rdfs:subClassOf obo:VT_0006104 .

obo:VT_0001095 a rdfs:Class ;
  rdfs:label "trigeminal ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of sensory neuron cell bodies associated with the trigeminal nerve." ;
  rdfs:subClassOf obo:VT_0001092 .

obo:VT_0009627 a rdfs:Class ;
  rdfs:label "submandibular lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph nodes beneath the mandible that receive vessels from the face and tongue and drain into the superior deep cervical nodes." ;
  rdfs:subClassOf obo:VT_0008463 .

obo:VT_0015009 a rdfs:Class ;
  rdfs:label "white adipocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fat cells with light coloration and few mitochondria; these contain a scant ring of cytoplasm surrounding a single large lipid droplet or vacuole." ;
  rdfs:subClassOf obo:VT_0002970 , obo:VT_0004128 .

obo:VT_0011151 a rdfs:Class ;
  rdfs:label "hippocampal formation ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the hippocampal formation of the brain. The hippocampal formation includes the hippocampus (proper) plus dentate gyrus and subiculum. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010791 , obo:VT_0011301 .

obo:VT_0001970 a rdfs:Class ;
  rdfs:label "pain threshold" ;
  rdfs:comment "The point at which stimulation first elicits the perception of pain." ;
  rdfs:subClassOf obo:VT_0015100 .

obo:VT_0001929 a rdfs:Class ;
  rdfs:label "gametogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation or differentiation of germ cells." ;
  rdfs:subClassOf obo:VT_0001919 .

obo:VT_0004188 a rdfs:Class ;
  rdfs:label "timing of embryo turning" ;
  rdfs:comment "The time of completion of axial rotation." ;
  rdfs:subClassOf obo:VT_0001700 .

obo:VT_0006032 a rdfs:Class ;
  rdfs:label "ureteric bud morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the ureteric bud that with the metanephric mesenchyme gives rise to the kidneys." ;
  rdfs:subClassOf obo:VT_0000527 .

obo:VT_0010537 a rdfs:Class ;
  rdfs:label "lateral septum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of this portion of the septum which has strong projections to hypothalamic and midbrain regions and receives projections from the hippocampus and amygdala." ;
  rdfs:subClassOf obo:VT_0000787 .

obo:VT_0010146 a rdfs:Class ;
  rdfs:label "obsolete mannose-binding protein physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of a protein involved in innate immunity, which can bind mannosylated microorganisms and activate the complement pathway." .

obo:VT_0001138 a rdfs:Class ;
  rdfs:label "uterine cervix squamous epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the scaly epithelial layer of the cervix." ;
  rdfs:subClassOf obo:VT_0001137 .

obo:VT_1000434 a rdfs:Class ;
  rdfs:label "muscle skatole amount" ;
  rdfs:comment "The proportion, quantity, or volume of skatole, a tryptophan degradation product, detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0009921 a rdfs:Class ;
  rdfs:label "transitional stage T3 B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a type of a transitional stage B cell that expresses surface IgM and IgD, and CD62L; this cell type appears to be an anergic B cell that does not proliferate upon BCR signaling, is found in the spleen and lymph nodes, and has the phenotype surface IgM-positive, surface IgD-positive, CD21-positive, CD23-positive, and CD62L-positive." ;
  rdfs:subClassOf obo:VT_0008188 .

obo:VT_0004128 a rdfs:Class ;
  rdfs:label "adipocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells in the body that store fats." ;
  rdfs:subClassOf obo:VT_0000003 .

obo:VT_0002858 a rdfs:Class ;
  rdfs:label "posterior semicircular canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the posterior segment of the long bony tube of the labyrinth that is involved in the sense of balance." ;
  rdfs:subClassOf obo:VT_0002428 .

obo:VT_0002207 a rdfs:Class ;
  rdfs:label "long-term potentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the persistent robust synaptic response induced by synchronous stimulation of pre- and postsynaptic cells." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0000539 a rdfs:Class ;
  rdfs:label "urinary bladder size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the distensible musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0000538 .

obo:VT_0011372 a rdfs:Class ;
  rdfs:label "rumen mass" ;
  rdfs:comment "The amount of matter in the first compartment of the ruminant stomach. It lies on the left side of the body, occupying the whole of the left side of the abdomen and even stretching across the median plane of the body to the right side. It is capacious, divided into an upper and a lower sac, each of which has a blind sac at its posterior extremity." ;
  rdfs:subClassOf obo:VT_0010242 .

obo:VT_0009626 a rdfs:Class ;
  rdfs:label "celiac lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern any of the visceral lymph nodes located along the celiac trunk, which drain lymph from the stomach, duodenum, pancreas, spleen, and biliary tract." ;
  rdfs:subClassOf obo:VT_0009625 .

obo:VT_0008192 a rdfs:Class ;
  rdfs:label "germinal center B cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in rapidly cycling mature B cells which have downregulated IgD expression and exhibit high levels of binding by peanut agglutinin (PNA), and are involved in T-dependent immune responses; germinal center B cells are found typically in the germinal centers of lymph nodes." ;
  rdfs:subClassOf obo:VT_0002459 .

obo:VT_0003838 a rdfs:Class ;
  rdfs:label "milk secretion trait" ;
  rdfs:comment "Any measurable characteristic related to the controlled release of milk from the mammary gland." ;
  rdfs:subClassOf obo:VT_0001882 .

obo:VT_0010765 a rdfs:Class ;
  rdfs:label "head and neck integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the head and/or neck." ;
  rdfs:subClassOf obo:VT_0100003 .

obo:VT_0001180 a rdfs:Class ;
  rdfs:label "inner hair cell stereociliary bundle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the typically linear or U-shaped pattern of arrangement of mechanosensitive hair bundles located at the apical end of cochlear IHCs; each hair bundle is normally composed of ~100 nonmotile, actin-filled microvilli (stereocilia) arranged in rows of increasing height and coupled to one another by morphologically distinct links: tip links, horizontal top connectors, shaft connectors, and ankle links; most hair bundles also possess a single motile kinocilium immediately adjacent to the tallest row of stereocilia; a fifth link type, the kinocilial link, connects the kinocilium to its neighboring stereocilia." ;
  rdfs:subClassOf obo:VT_0000816 , obo:VT_0004393 .

obo:VT_0015011 a rdfs:Class ;
  rdfs:label "white adipocyte size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of fat cells with light coloration and few mitochondria." ;
  rdfs:subClassOf obo:VT_0010934 , obo:VT_0015009 .

obo:VT_0008631 a rdfs:Class ;
  rdfs:label "blood interleukin-16 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine produced by activated T-cells that stimulates the migration of CD4-positive lymphocytes and monocytes." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0008748 a rdfs:Class ;
  rdfs:label "central T cell anergy trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the processes of T cell anergy, a state of functional inactivation which is part of tolerance induction, that occur in the thymus." ;
  rdfs:subClassOf obo:VT_0008747 .

obo:VT_0005272 a rdfs:Class ;
  rdfs:label "temporal bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the large, irregular bone located at the base and side of the skull; consists of three parts which are distinct at birth: squamous, tympanic, and petrous." ;
  rdfs:subClassOf obo:VT_0000076 .

obo:VT_0008073 a rdfs:Class ;
  rdfs:label "CD4-positive T cell quantity" ;
  rdfs:comment "The proportion or number of the subset of T lymphocytes that carry the CD4 marker, recognize intravesicular peptides bound to MHC class-II molecules, and turn on antibody production." ;
  rdfs:subClassOf obo:VT_0001830 , obo:VT_0002432 .

obo:VT_0002086 a rdfs:Class ;
  rdfs:label "extraembryonic tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the membranes involved with embryonic protection and nutrition." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0011305 a rdfs:Class ;
  rdfs:label "time of pinna detachment" ;
  rdfs:comment "The stage of development when the pinna (the part of the ear that projects from the head, connecting to the external acoustic meatus) detaches from the head." ;
  rdfs:subClassOf obo:VT_0000052 .

obo:VT_0002731 a rdfs:Class ;
  rdfs:label "colon size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the portion of the large intestine between the cecum and the rectum." ;
  rdfs:subClassOf obo:VT_0000495 .

obo:VT_0000521 a rdfs:Class ;
  rdfs:label "kidney cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outer area of the kidney, which contains the glomeruli and the capsules that enclose them, as well as the proximal and distal convoluted tubules." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0005369 a rdfs:Class ;
  rdfs:label "muscular system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0002829 a rdfs:Class ;
  rdfs:label "juxtaglomerular apparatus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the complex of modified smooth muscle cells consisting of juxtaglomerular cells, extraglomerular mesangium lacis cells, the macula densa of the distal convoluted tubule, and granular epithelial peripolar cells; these cells are found in the walls of afferent and efferent glomerular arterioles." ;
  rdfs:subClassOf obo:VT_0000521 .

obo:VT_1000190 a rdfs:Class ;
  rdfs:label "estrus intensity" ;
  rdfs:comment "The degree to which the female displays the state of sexual excitement during which she is most receptive to mating." ;
  rdfs:subClassOf obo:VT_0001927 .

obo:VT_0010799 a rdfs:Class ;
  rdfs:label "spleen ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the spleen. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010798 .

obo:VT_0006096 a rdfs:Class ;
  rdfs:label "retinal bipolar cell quantity" ;
  rdfs:comment "The proportion or numbers of the cells that transmit signals from the photoreceptors to retinal amacrine and ganglion cells." ;
  rdfs:subClassOf obo:VT_0006073 , obo:VT_0015026 .

obo:VT_0010348 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9,cis-11-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and cis double bonds at C-9 and C-11." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0002746 a rdfs:Class ;
  rdfs:label "semilunar valve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the valves that gate the flow of blood from the ventricles into the aorta and pulmonary trunk." ;
  rdfs:subClassOf obo:VT_0000285 .

obo:VT_0001670 a rdfs:Class ;
  rdfs:label "mineral absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in any inorganic element or compound that has importance in body functions." ;
  rdfs:subClassOf obo:VT_0001666 .

obo:VT_0010010 a rdfs:Class ;
  rdfs:label "femur strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds to withstand the application of force without yielding or breaking." ;
  rdfs:subClassOf obo:VT_0001542 .

obo:VT_0011109 a rdfs:Class ;
  rdfs:label "heart right atrium ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the right upper chamber of the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010792 , obo:VT_0011108 .

obo:VT_0003457 a rdfs:Class ;
  rdfs:label "blood ketone body amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of acetoacetate, 3-hydroxybutyrate and acetone; produced by fatty acid and carbohydrate metabolism and seen in conditions such as starvation and diabetes mellitus." ;
  rdfs:subClassOf obo:VT_0003949 .

obo:VT_0001416 a rdfs:Class ;
  rdfs:label "strial marginal cell quantity" ;
  rdfs:comment "The proportion or numbers of the polarized columnar cells of epithelial origin which cover the lateral surface of the cochlear duct, secrete K+ and form a continuous sheet in contact with the endolymph." ;
  rdfs:subClassOf obo:VT_0004366 .

obo:VT_0003607 a rdfs:Class ;
  rdfs:label "prostate physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the gland surrounding the beginning of the urethra in males that secretes part of the seminal fluid." ;
  rdfs:subClassOf obo:VT_0003698 , obo:VT_0005647 .

obo:VT_0000771 a rdfs:Class ;
  rdfs:label "brain size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the brain, one of the two components of the central nervous system and the center of thought and emotion; controls coordination, bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.)." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0010281 a rdfs:Class ;
  rdfs:label "milk alpha-S1-casein amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the most abundant casein in the milk of ruminants and rabbits." ;
  rdfs:subClassOf obo:VT_0010666 .

obo:VT_0000579 a rdfs:Class ;
  rdfs:label "nail morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the thin, horny, translucent plates covering the dorsal surface of the distal end of each terminal phalanx of the digits." ;
  rdfs:subClassOf obo:VT_0010007 .

obo:VT_0002717 a rdfs:Class ;
  rdfs:label "preputial gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sebaceous glands of the corona and neck of the glans penis." ;
  rdfs:subClassOf obo:VT_0000653 .

obo:VT_0010475 a rdfs:Class ;
  rdfs:label "blood amylase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a group of amylolytic enzymes that cleave starch, glycogen, and related alpha-1,4-glucans." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0000969 a rdfs:Class ;
  rdfs:label "nociceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the peripheral receptors for pain, including receptors sensitive to painful mechanical stimuli, extreme heat or cold, and chemical stimuli." ;
  rdfs:subClassOf obo:VT_0000965 , obo:VT_0015098 .

obo:VT_0000470 a rdfs:Class ;
  rdfs:label "stomach morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0011162 a rdfs:Class ;
  rdfs:label "cerebral artery molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of molecules (proteins, minerals, nutrients, gases, or other substances) within any of the arteries which irrigate the cerebrum of the brain." ;
  rdfs:subClassOf obo:VT_0010920 , obo:VT_0015090 .

obo:VT_0002847 a rdfs:Class ;
  rdfs:label "glomerular filtration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the filtration of water out of the plasma through glomerular capillary walls into the Bowman's capsule." ;
  rdfs:subClassOf obo:VT_0003606 .

obo:VT_0011106 a rdfs:Class ;
  rdfs:label "nucleus accumbens ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the group of neurons located at the head of the caudate nucleus and anterior to the putamen; these neurons normally are involved in sensations of pleasure and reactions to addictive substances. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011105 , obo:VT_0011159 .

obo:VT_0003143 a rdfs:Class ;
  rdfs:label "otolith size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the crystalline calciferous particles adhering to the otolithic membrane." ;
  rdfs:subClassOf obo:VT_0002894 .

obo:VT_0010987 a rdfs:Class ;
  rdfs:label "blood dipeptide amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any molecule that contains two amino-acid residues connected by peptide linkages." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0011043 a rdfs:Class ;
  rdfs:label "pineal gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the midline, cone-like structure located in the dorso-caudal roof of the third ventricle, attached by peduncles to the habenular and posterior commissures, which produces melatonin." ;
  rdfs:subClassOf obo:VT_0000632 .

obo:VT_0000077 a rdfs:Class ;
  rdfs:label "interparietal bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone of the cranium that lies above and anterior to the occipital bone in some mammals." ;
  rdfs:subClassOf obo:VT_0000076 .

obo:VT_0004164 a rdfs:Class ;
  rdfs:label "neurohypophysis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the posterior part of the pituitary gland that secretes hormones involved in blood pressure regulation." ;
  rdfs:subClassOf obo:VT_0000633 .

obo:VT_0010930 a rdfs:Class ;
  rdfs:label "kidney arteriole morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the renal arterioles, the blood vessels that branch from the kidney interlobular arteries and convey blood to the glomerular capillaries and from the glomerulocapillary network to the capillary beds of the proximal convoluted tubules." ;
  rdfs:subClassOf obo:VT_0000530 , obo:VT_0010929 .

obo:VT_0004372 a rdfs:Class ;
  rdfs:label "fibula curvature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree or shape of the bend in the lateral and smaller bone of the lower/hind limb." ;
  rdfs:subClassOf obo:VT_0002187 .

obo:VT_0008759 a rdfs:Class ;
  rdfs:label "T cell receptor delta chain V(D)J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which V, D, and J segments of the T cell receptor delta chain are recombined." ;
  rdfs:subClassOf obo:VT_0008754 .

obo:VT_0000807 a rdfs:Class ;
  rdfs:label "hippocampus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the deep lying structure of the cerebrum involved with memory storage and spatial navigation." ;
  rdfs:subClassOf obo:VT_0000787 , obo:VT_0000801 , obo:VT_0004166 .

obo:VT_0001943 a rdfs:Class ;
  rdfs:label "respiration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the movement of gases into and out of the lung." ;
  rdfs:subClassOf obo:VT_0002133 .

obo:VT_0005358 a rdfs:Class ;
  rdfs:label "incisor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the first kind of tooth in heterodont mammals. They are located in the premaxilla above and mandible below." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0001037 a rdfs:Class ;
  rdfs:label "parasympathetic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons of the autonomic nervous system that are responsible for innervation of smooth muscle, cardiac muscle and glands and regulation of homeostasis." ;
  rdfs:subClassOf obo:VT_0001033 .

obo:VT_0010274 a rdfs:Class ;
  rdfs:label "ear orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the outer ears in relation to each other or to the skull." ;
  rdfs:subClassOf obo:VT_0002177 .

obo:VT_0004287 a rdfs:Class ;
  rdfs:label "spiral limbus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the border of the spiral lamina, i.e., the thickened periosteum covering the upper plate of the bony spiral lamina of the cochlea." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0008099 a rdfs:Class ;
  rdfs:label "plasma cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of terminally differentiated, post-mitotic, short-lived cells of the B cell lineage devoted to producing large amounts of immunoglobulin." ;
  rdfs:subClassOf obo:VT_0002144 .

obo:VT_0002937 a rdfs:Class ;
  rdfs:label "synovial blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood flow to the synovial joint." ;
  rdfs:subClassOf obo:VT_0000255 , obo:VT_0010064 .

obo:VT_0015088 a rdfs:Class ;
  rdfs:label "glucose metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving glucose, the aldohexose gluco-hexose. D-glucose is dextrorotatory and is sometimes known as dextrose; it is an important source of energy for living organisms and is found free as well as combined in homo- and hetero-oligosaccharides and polysaccharides." ;
  rdfs:subClassOf obo:VT_0010632 .

obo:VT_0010210 a rdfs:Class ;
  rdfs:label "duodenum crypt of Lieberkuhn depth" ;
  rdfs:comment "The distance between the inferior and superior edges of any of the straight tubular glands located in the epithelial layer of the intestine between the bases of the villi of the duodenum." ;
  rdfs:subClassOf obo:VT_0000490 , obo:VT_0003271 , obo:VT_0010221 .

obo:VT_0003055 a rdfs:Class ;
  rdfs:label "epiphyseal plate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cartilaginous center of ossification on the long bones permitting growth of the bone in both directions during development." ;
  rdfs:subClassOf obo:VT_0000163 , obo:VT_0003723 , obo:VT_0010005 .

obo:VT_0003166 a rdfs:Class ;
  rdfs:label "superior semicircular canal size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the upper, superior segment of the long bony tube of the labyrinth that is involved in the sense of balance." ;
  rdfs:subClassOf obo:VT_0003069 .

obo:VT_0008683 a rdfs:Class ;
  rdfs:label "interleukin-18 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine which enhances the cytotoxic activity of NK cells and cytotoxic T-cells and appears to play a role both as neuroimmunomodulator and in the induction of mucosal immunity." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0004153 a rdfs:Class ;
  rdfs:label "kidney tubule apoptosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the cells of the loops of Henle, proximal and distal convoluted tubules, and collecting ducts in the kidney undergo programmed cell death." ;
  rdfs:subClassOf obo:VT_0003606 .

obo:VT_0010523 a rdfs:Class ;
  rdfs:label "cervical lymph node cell quantity" ;
  rdfs:comment "The proportion or number of cells in the lymph nodes found near the neck and shoulders." ;
  rdfs:subClassOf obo:VT_0002351 .

obo:VT_0000307 a rdfs:Class ;
  rdfs:label "blood-inner ear barrier physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the group of barriers and transport systems which regulate the transport of various substances from blood to inner ear tissue and maintain the microhomeostasis and functional integrity of the inner ear; the endothelial cells of the inner ear blood capillaries, linked to each other by tight junctions, represent the main component of the blood-inner ear barrier." ;
  rdfs:subClassOf obo:VT_0003878 .

obo:VT_0015109 a rdfs:Class ;
  rdfs:label "dendrite morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the highly branched tree-like process of a neuron that serves as a receptive field and conducts impulses toward the cell body." ;
  rdfs:subClassOf obo:VT_0015108 .

obo:VT_0002607 a rdfs:Class ;
  rdfs:label "basophil quantity" ;
  rdfs:comment "The proportion or number of granular leukocytes that are characterized by pale-staining, lobate nucleus and cytoplasm, contain dark-staining granules of varying size, and are stained by basic dyes." ;
  rdfs:subClassOf obo:VT_0000334 , obo:VT_0002422 .

obo:VT_0010787 a rdfs:Class ;
  rdfs:label "eicosanoid amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of eicosanoids, signaling molecules derived from C20 fatty acids." ;
  rdfs:subClassOf obo:VT_0001547 .

obo:VT_0006004 a rdfs:Class ;
  rdfs:label "interneuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that exclusively interact with other neurons." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0010032 a rdfs:Class ;
  rdfs:label "chemokine secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of any of the class of pro-inflammatory cytokines that attract and activate leukocytes." ;
  rdfs:subClassOf obo:VT_0003009 .

obo:VT_0001588 a rdfs:Class ;
  rdfs:label "blood hemoglobin amount" ;
  rdfs:comment "The proportion, quantity, or volume in blood of the oxygen-carrying protein of erythrocytes." ;
  rdfs:subClassOf obo:VT_0002447 , obo:VT_0005416 .

obo:VT_0010859 a rdfs:Class ;
  rdfs:label "forebrain norepinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of a catecholamine hormone that functions as a neurotransmitter and is the precursor to epinephrine." ;
  rdfs:subClassOf obo:VT_0010837 , obo:VT_0010875 .

obo:VT_0001089 a rdfs:Class ;
  rdfs:label "nodose ganglion neuron quantity" ;
  rdfs:comment "The proportion or number of the sensory neurons comprising the nodose ganglion." ;
  rdfs:subClassOf obo:VT_0001087 .

obo:VT_0001746 a rdfs:Class ;
  rdfs:label "secretion by pituitary trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances from the pituitary." ;
  rdfs:subClassOf obo:VT_0005646 .

obo:VT_1000644 a rdfs:Class ;
  rdfs:label "testis mass" ;
  rdfs:comment "The amount of matter in the male reproductive gland(s) where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0001148 .

obo:VT_0006074 a rdfs:Class ;
  rdfs:label "retinal rod bipolar cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bipolar cells that function in low light and transmit signals only through amacrine cells." ;
  rdfs:subClassOf obo:VT_0006073 .

obo:VT_0002900 a rdfs:Class ;
  rdfs:label "urine phosphate amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of this salt or ester of phosphoric acid." ;
  rdfs:subClassOf obo:VT_0015086 .

obo:VT_0008397 a rdfs:Class ;
  rdfs:label "CD4-positive, CD25-positive, alpha-beta regulatory T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD4-positive, CD25-positive, alpha-beta T cell which regulates overall immune responses as well as the responses of other T cell subsets through direct cell-cell contact and cytokine release." ;
  rdfs:subClassOf obo:VT_0002432 , obo:VT_0004941 .

obo:VT_0011028 a rdfs:Class ;
  rdfs:label "urethra molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the canal leading from the bladder, discharging the urine externally." ;
  rdfs:subClassOf obo:VT_0000537 .

obo:VT_0008248 a rdfs:Class ;
  rdfs:label "mononuclear phagocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a vertebrate phagocyte with a single nucleus." ;
  rdfs:subClassOf obo:VT_0008251 .

obo:VT_0015001 a rdfs:Class ;
  rdfs:label "femoral fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the long bone of the thigh." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0010505 a rdfs:Class ;
  rdfs:label "blood LDL phospholipid amount" ;
  rdfs:comment "The proportion, quantity, or volume of phospholipid found in the low density lipoprotein fraction of whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0006084 .

obo:VT_0003613 a rdfs:Class ;
  rdfs:label "kidney medulla development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the inner portion of the kidney during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000527 .

obo:VT_0011054 a rdfs:Class ;
  rdfs:label "posterior cruciate ligament ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the posterior cruciate ligament, a major stabilizing ligament in the knee that attaches to the surfaces of the femur and tibia. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011052 .

obo:VT_0011378 a rdfs:Class ;
  rdfs:label "excreta molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in an organism substance that is the product of an excretion process that will be eliminated from the body. An excretion process is elimination by an organism of the waste products that arise as a result of metabolic activity." ;
  rdfs:subClassOf obo:VT_0011375 .

obo:VT_0002240 a rdfs:Class ;
  rdfs:label "paranasal sinus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired, air-filled cavities surrounded by the bones of the face that are lined by mucous membranes and are continuous with the nasal cavity." ;
  rdfs:subClassOf obo:VT_0002233 .

obo:VT_0008051 a rdfs:Class ;
  rdfs:label "memory T cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the set of distinctly differentiated long-lived T cells that have the phenotype CD45RO-positive and CD127-positive." ;
  rdfs:subClassOf obo:VT_0002444 .

obo:VT_0000666 a rdfs:Class ;
  rdfs:label "prostate duct quantity" ;
  rdfs:comment "The proportion or number of minute canals that pass the prostatic secretions to the urethra." ;
  rdfs:subClassOf obo:VT_0001158 .

obo:VT_0002435 a rdfs:Class ;
  rdfs:label "effector T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the set of T lymphocytes that are able to respond immediately upon contact with cells bearing the appropriate peptide:MHC complex for the cell." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0011367 a rdfs:Class ;
  rdfs:label "non-viable embryo quantity" ;
  rdfs:comment "The proportion or number of embryos that are not capable of living, growing, or developing successfully." ;
  rdfs:subClassOf obo:VT_0011364 .

obo:VT_0010322 a rdfs:Class ;
  rdfs:label "milk omega-3 fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of unsaturated fatty acids in which the first unsaturated bond is in the third position from the omega carbon (C18:3, n-3; C20:5, n-3; C22:6, n-3)." ;
  rdfs:subClassOf obo:VT_0010305 .

obo:VT_0006065 a rdfs:Class ;
  rdfs:label "heart orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement within the chest cavity of the organ that pumps blood through the body." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0001053 a rdfs:Class ;
  rdfs:label "neuromuscular synapse morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the membrane to membrane contact of a motor axon and a muscle myofiber." ;
  rdfs:subClassOf obo:VT_0001051 , obo:VT_0015110 .

obo:VT_0003229 a rdfs:Class ;
  rdfs:label "yolk sac vasculature morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the vessels of the highly vascular layer surrounding the yolk of an embryo; it contributes to hematopoietic circulation in mammals." ;
  rdfs:subClassOf obo:VT_0001718 .

obo:VT_0010512 a rdfs:Class ;
  rdfs:label "histocompatibility type" ;
  rdfs:comment "The Major Histocompatibility Complex (MHC) molecules expressed by an organism; these cell surface molecules distinguish self from nonself and mediate interactions of immune cells through antigen processing and presentation." ;
  rdfs:subClassOf obo:VT_1000783 .

obo:VT_0000362 a rdfs:Class ;
  rdfs:label "mast cell histamine storage trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the amounts of histamine stored in mast cells." ;
  rdfs:subClassOf obo:VT_0000359 .

obo:VT_0015093 a rdfs:Class ;
  rdfs:label "hearing system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to receive an auditory stimulus, convert it to a molecular signal, and recognize and characterize the signal, or to the morphology of the structures involved in any of these events." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0000045 a rdfs:Class ;
  rdfs:label "hair cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the sensory epithelial cells of the inner ear." ;
  rdfs:subClassOf obo:VT_0000026 , obo:VT_0000972 .

obo:VT_0000038 a rdfs:Class ;
  rdfs:label "head length" ;
  rdfs:comment "The distance from point to point along the longest axis of the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0000002 .

obo:VT_0011281 a rdfs:Class ;
  rdfs:label "retroperitoneal fat pad molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the encapsulated adipose tissue found on the dorsal/posterior side of the serous membrane lining the abdominal cavity and covering most of the viscera." ;
  rdfs:subClassOf obo:VT_0005337 .

obo:VT_0003662 a rdfs:Class ;
  rdfs:label "epiphyseal plate proliferative zone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the germinal layer of the epiphyseal plate where cells are actively dividing as well as producing extracellular matrix." ;
  rdfs:subClassOf obo:VT_0003055 .

obo:VT_0001026 a rdfs:Class ;
  rdfs:label "adrenergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that release catecholamines at a synapse after an impulse." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0002211 a rdfs:Class ;
  rdfs:label "primary sex determination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process that results in the initial specification of sexual status of an organism." ;
  rdfs:subClassOf obo:VT_0002210 .

obo:VT_0100033 a rdfs:Class ;
  rdfs:label "mammary gland circumference" ;
  rdfs:comment "The distance around the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0010002 .

obo:VT_0000367 a rdfs:Class ;
  rdfs:label "coat/hair morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the hair, wool, or fur of an organism, that is, of either a single cylindrical, keratinized, often pigmented filament characteristically growing from the epidermis of a mammal, or of the aggregate of all such filaments." ;
  rdfs:subClassOf obo:VT_0010007 .

obo:VT_0011350 a rdfs:Class ;
  rdfs:label "milk molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the fluid secreted by the mammary glands of female mammals for the nourishment of their young." ;
  rdfs:subClassOf obo:VT_0004047 .

obo:VT_0001911 a rdfs:Class ;
  rdfs:label "cerebrospinal fluid production trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the secretion of the fluid that fills the ventricles and other cavities of the brain and spinal cord." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010776 a rdfs:Class ;
  rdfs:label "blood alpha-fetoprotein amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the highly abundant plasma protein produced by the yolk sac, liver, and gastrointestinal tract during fetal life and by certain neoplasms in the adult." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0001286 a rdfs:Class ;
  rdfs:label "eye development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organ of vision and its supporting structures." ;
  rdfs:subClassOf obo:VT_0003935 .

obo:VT_0000438 a rdfs:Class ;
  rdfs:label "skull morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bones surrounding the brain and bones of the lower face and jaws." ;
  rdfs:subClassOf obo:VT_0002116 .

obo:VT_0002911 a rdfs:Class ;
  rdfs:label "inhibitory postsynaptic potential" ;
  rdfs:comment "The membrane potential detected in postsynaptic cells when an inhibitory impulse arrives at the synapse causing hyperpolarization." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0008089 a rdfs:Class ;
  rdfs:label "T-helper 2 cell quantity" ;
  rdfs:comment "The proportion or number of the type of T-helper cell whose cytokine production promotes defense against extracellular parasites and humoral immune responses typical of allergy." ;
  rdfs:subClassOf obo:VT_0002434 , obo:VT_0008073 .

obo:VT_0007041 a rdfs:Class ;
  rdfs:label "heart tube orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the early embryonic heart in relation to itself and the surrounding tissue." ;
  rdfs:subClassOf obo:VT_0000125 .

obo:VT_0005065 a rdfs:Class ;
  rdfs:label "neutrophil morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the immature or mature forms of a granular leukocyte that in its mature form has a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes." ;
  rdfs:subClassOf obo:VT_0002441 , obo:VT_0008251 .

obo:VT_0002970 a rdfs:Class ;
  rdfs:label "white adipose morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the connective tissue consisting of fat-storing cells and arranged in lobular groups or along minor blood vessels." ;
  rdfs:subClassOf obo:VT_0000003 .

obo:VT_0001727 a rdfs:Class ;
  rdfs:label "embryo implantation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the mammalian blastocyst to attach to the endometrium of the uterus." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0010388 a rdfs:Class ;
  rdfs:label "milk polyphenol amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of compounds containing more than one phenol group." ;
  rdfs:subClassOf obo:VT_0010261 .

obo:VT_0010687 a rdfs:Class ;
  rdfs:label "response to heat trait" ;
  rdfs:comment "Any measurable or observable characteristic related to a change in state or activity of a cell or an organism as a result of a heat stimulus, a temperature stimulus above the optimal temperature for that organism." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0011192 a rdfs:Class ;
  rdfs:label "milk cyclophilin A amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of cyclophilin A, a peptidylprolyl isomerase involved in immunoregulation." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0011322 a rdfs:Class ;
  rdfs:label "mouth mucosa molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the mucus-secreting tissue that lines the oral cavity." ;
  rdfs:subClassOf obo:VT_0003745 .

obo:VT_0003984 a rdfs:Class ;
  rdfs:label "embryonic growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size or mass during the embryonic period (sensu Mus: up to E14, or the completion of organogenesis)." ;
  rdfs:subClassOf obo:VT_0005380 , obo:VT_0011174 .

obo:VT_0003446 a rdfs:Class ;
  rdfs:label "kidney cell quantity" ;
  rdfs:comment "The proportion or number of cells in one or both of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0011017 a rdfs:Class ;
  rdfs:label "aorta ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in any part of the aorta, the main trunk of the systemic arteries. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010946 , obo:VT_0011176 .

obo:VT_0011292 a rdfs:Class ;
  rdfs:label "biceps femoris morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a muscle of the posterior thigh. It has two parts, one of which (the long head) forms part of the hamstrings muscle group." ;
  rdfs:subClassOf obo:VT_0010107 .

obo:VT_0001669 a rdfs:Class ;
  rdfs:label "glucose absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in the monosaccharide that is the end product of carbohydrate digestion; D-glucose serves as a primary energy source for living organisms." ;
  rdfs:subClassOf obo:VT_0001667 .

obo:VT_0010173 a rdfs:Class ;
  rdfs:label "obsolete C6 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C6." .

obo:VT_0001465 a rdfs:Class ;
  rdfs:label "malleus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the largest of the three auditory ossicles, which resembles a club." ;
  rdfs:subClassOf obo:VT_0000029 , obo:VT_0003739 .

obo:VT_0000066 a rdfs:Class ;
  rdfs:label "pancreas/salivary gland physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the pancreas or salivary glands." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0005623 a rdfs:Class ;
  rdfs:label "meninges morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the membranes covering the spinal cord and brain, including the dura mater (external), arachnoid (middle), and pia mater (internal)." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0005504 a rdfs:Class ;
  rdfs:label "ligament morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the flexible bands or sheets of fibrous tissue that connect bones, cartilages, or other structures." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0010978 a rdfs:Class ;
  rdfs:label "blood L-leucine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of leucine, a branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0000878 a rdfs:Class ;
  rdfs:label "Purkinje cell quanitity" ;
  rdfs:comment "The proportion or number of neuronal cells that are located in the interface of the molecular and granular layers of the cerebellar cortex." ;
  rdfs:subClassOf obo:VT_0000877 , obo:VT_0015026 .

obo:VT_0010434 a rdfs:Class ;
  rdfs:label "response to infection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter immune processes or function as a result of invasion and multiplication of microorganisms in the tissues, or of exposure to components of or toxins produced by pathogenic microorganisms." ;
  rdfs:subClassOf obo:VT_0010139 .

obo:VT_0011083 a rdfs:Class ;
  rdfs:label "diencephalon size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the paired caudal parts of the prosencephalon from which the thalamus, hypothalamus, epithalamus and subthalamus are derived; these regions regulate autonomic, visceral and endocrine function, and process information directed to the cerebral cortex." ;
  rdfs:subClassOf obo:VT_0000830 .

obo:VT_0100020 a rdfs:Class ;
  rdfs:label "integumentary system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the system consisting of the skin and its derivatives." ;
  rdfs:subClassOf obo:VT_0015066 , obo:VT_1000775 .

obo:VT_0010954 a rdfs:Class ;
  rdfs:label "gastrointestinal system mass" ;
  rdfs:comment "The amount of matter in the components of the system that converts ingested food to nutrients and energy." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0001900 a rdfs:Class ;
  rdfs:label "synaptic plasticity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the nervous system to change its reactivity as a result of successive activations." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0000255 a rdfs:Class ;
  rdfs:label "regional blood flow trait" ;
  rdfs:comment "Any measurable functional characteristic related to blood flow in a specific region of the body, tissue, or organ." ;
  rdfs:subClassOf obo:VT_0000182 .

obo:VT_0000979 a rdfs:Class ;
  rdfs:label "obsolete hair-down neuron morphology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the shape, structure, color, or pattern of the subcutaneous mechanoreceptors that innervate vellus hairs." .

obo:VT_0010340 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-15-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a cis double bond at C-15." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0000413 a rdfs:Class ;
  rdfs:label "phalanx quantity" ;
  rdfs:comment "The proportion or number of the long bones in any of the digits." ;
  rdfs:subClassOf obo:VT_0005306 .

obo:VT_0010045 a rdfs:Class ;
  rdfs:label "subcutaneous adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of fat-storing tissue located directly beneath the skin." ;
  rdfs:subClassOf obo:VT_0001781 , obo:VT_0003705 .

obo:VT_0006387 a rdfs:Class ;
  rdfs:label "T cell quantity" ;
  rdfs:comment "The proportion or number of lymphocytes that are responsible for cell-mediated immunity and immune system regulation." ;
  rdfs:subClassOf obo:VT_0000717 , obo:VT_0008037 .

obo:VT_0010102 a rdfs:Class ;
  rdfs:label "vertebral column development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the supporting, flexible bony structure that encases the spinal cord." ;
  rdfs:subClassOf obo:VT_0010065 .

obo:VT_0002948 a rdfs:Class ;
  rdfs:label "neuron specification trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the developmental patterning of neurons." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0008590 a rdfs:Class ;
  rdfs:label "blood interleukin-10 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine produced by a variety of cell types, including T-cells, monocytes, dendritic cells and epithelial cells that exerts a variety of effects on immunoregulation and inflammation." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0008036 a rdfs:Class ;
  rdfs:label "NK T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the distinct lineage of T cells expressing natural killer cell markers and having T cell receptors characterized by the usage of a restricted repertoire of variable region gene segments." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0010056 a rdfs:Class ;
  rdfs:label "muscle fatty acid cis-11-C20:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a monounsaturated fatty acid (C20H38O2), with a carbon-carbon double bond at C-11, present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010049 .

obo:VT_0003720 a rdfs:Class ;
  rdfs:label "neural tube closure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the invagination and fusion of the neuroepithelial layer in early development." ;
  rdfs:subClassOf obo:VT_0002151 .

obo:VT_0000261 a rdfs:Class ;
  rdfs:label "arterial blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood flow in the arteries." ;
  rdfs:subClassOf obo:VT_0000182 .

obo:VT_0004234 a rdfs:Class ;
  rdfs:label "masticatory muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the muscles responsible for the movement of the jaws during mastication, including the masseter, temporalis, and medial and lateral pterygoid muscles." ;
  rdfs:subClassOf obo:VT_0000759 .

obo:VT_0010899 a rdfs:Class ;
  rdfs:label "bone marrow cell integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural or biochemical soundness of the cells found in the bone marrow." ;
  rdfs:subClassOf obo:VT_0002398 .

obo:VT_0011080 a rdfs:Class ;
  rdfs:label "inferior temporal gyrus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the longitudinal ridge on the rostroventral surface of the temporal lobe." ;
  rdfs:subClassOf obo:VT_0011076 .

obo:VT_0011000 a rdfs:Class ;
  rdfs:label "choline amount" ;
  rdfs:comment "The proportion, quantity, or volume of choline (2-hydroxyethyltrimethylammonium), an amino alcohol that occurs widely in living organisms as a constituent of certain types of phospholipids and in the neurotransmitter acetylcholine." ;
  rdfs:subClassOf obo:VT_0001765 .

obo:VT_0002790 a rdfs:Class ;
  rdfs:label "blood follicle stimulating hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the hormone that, in females, stimulates the Graafian follicles of the ovary and assists in follicular maturation and the secretion of estradiol; in the male it stimulates the epithelium of the seminiferous tubules and is partly responsible for spermatogenesis." ;
  rdfs:subClassOf obo:VT_0003361 , obo:VT_0005116 .

obo:VT_0010649 a rdfs:Class ;
  rdfs:label "adipose beta-carotene amount" ;
  rdfs:comment "The proportion, quantity, or volume in fat-storing cells/tissue of a carotenoid that is the most common precursor to vitamin A." ;
  rdfs:subClassOf obo:VT_0010006 .

obo:VT_0010989 a rdfs:Class ;
  rdfs:label "blood balenine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of A dipeptide composed of beta-alanine and 1-methylhistidine." ;
  rdfs:subClassOf obo:VT_0010987 .

obo:VT_0000139 a rdfs:Class ;
  rdfs:label "transverse process morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony protrusion on either side of the arch of a thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0003047 .

obo:VT_0010315 a rdfs:Class ;
  rdfs:label "milk fatty acid C14:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a fourteen-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0004054 a rdfs:Class ;
  rdfs:label "periocular mesenchyme morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mesenchymal cells that give rise to the corneal endothelium, corneal stroma, sclera, iris stroma, ciliary muscle, ciliary stroma, and trabecular meshwork of the eye." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0002491 a rdfs:Class ;
  rdfs:label "blood immunoglobulin D amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin present on the surface of B lymphocytes that acts as an antigen receptor." ;
  rdfs:subClassOf obo:VT_0002460 .

obo:VT_0005001 a rdfs:Class ;
  rdfs:label "clonal deletion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of removal of immature lymphocytes that interact with self antigens during maturation." ;
  rdfs:subClassOf obo:VT_0005000 .

obo:VT_0002127 a rdfs:Class ;
  rdfs:label "cardiovascular system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the heart or blood vessels." ;
  rdfs:subClassOf obo:VT_0100016 .

obo:VT_0010676 a rdfs:Class ;
  rdfs:label "semimembranosus width" ;
  rdfs:comment "The distance from side to side of the muscle of the thigh that is the most medial of the three hamstring muscles." ;
  rdfs:subClassOf obo:VT_0010675 .

obo:VT_0002121 a rdfs:Class ;
  rdfs:label "metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the processes that cause many of the chemical changes in living organisms, including anabolism and catabolism; metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0002233 a rdfs:Class ;
  rdfs:label "nose morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organ that is specialized for smell and is part of the respiratory system." ;
  rdfs:subClassOf obo:VT_0002132 , obo:VT_0003743 , obo:VT_0015066 .

obo:VT_0000896 a rdfs:Class ;
  rdfs:label "obsolete cochlear inner hair cell efferent innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to the normally dense plexus of efferent terminals that contact radial fibers of the spiral ganglion below cochlear IHCs or of the sparser plexus of terminals positioned around IHC somata; normally, lateral olivocochlear neurons, which are found in and/or around the lateral superior olive, project mainly to the ipsilateral cochlea and terminate mostly on dendritic fibers below IHCs.
consider: VT:0010157, VT:0010186""" .

obo:VT_0010983 a rdfs:Class ;
  rdfs:label "blood L-threonine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an optically active form of threonine (An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 1-hydroxyethyl group) having L-configuration." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0008619 a rdfs:Class ;
  rdfs:label "blood interleukin-23 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a heterodimeric cytokine that plays a role in innate and adaptive immune responses; it is produced by dendritic cells, macrophages and a variety of other immune cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0011337 a rdfs:Class ;
  rdfs:label "blood vitamin E amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a fat-soluble vitamin that acts as a natural antioxidant by scavenging free radicals and molecular oxygen." ;
  rdfs:subClassOf obo:VT_0010626 .

obo:VT_0004130 a rdfs:Class ;
  rdfs:label "muscle cell glucose uptake trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of contractile cells that effect movement of an organ or part of the body to take in the monosaccharide that is the end product of carbohydrate digestion." ;
  rdfs:subClassOf obo:VT_0002106 .

obo:VT_0001753 a rdfs:Class ;
  rdfs:label "hypothalamus corticotropin-releasing hormone secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of this factor, which stimulates the pituitary to release adrenocorticotropic hormone, from the hypothalamus." ;
  rdfs:subClassOf obo:VT_0001752 .

obo:VT_0010848 a rdfs:Class ;
  rdfs:label "hypothalamus homovanillic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of HVA, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010835 , obo:VT_0010873 .

obo:VT_0010568 a rdfs:Class ;
  rdfs:label "thoracic aorta molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the part of the descending aorta superior to the aortic hiatus of the diaphragm." ;
  rdfs:subClassOf obo:VT_0010567 , obo:VT_0010946 .

obo:VT_0001705 a rdfs:Class ;
  rdfs:label "proximal-distal axis patterning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the establishment, maintenance, and elaboration of a pattern in relation to proximity to the trunk or point of origin." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0002685 a rdfs:Class ;
  rdfs:label "spermatogonia proliferation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the spermatogonial stem cells undergo expansion by cell division." ;
  rdfs:subClassOf obo:VT_0001156 .

obo:VT_0003349 a rdfs:Class ;
  rdfs:label "blood renin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme which is secreted by the kidney; it cleaves a bond in angiotensionogen to generate angiotensin I." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0004170 a rdfs:Class ;
  rdfs:label "orbitofrontal cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the region of the cerebral cortex covering the basal surface of the frontal lobes; this region normally controls emotion and decision making." ;
  rdfs:subClassOf obo:VT_0000788 , obo:VT_0000798 , obo:VT_0004166 .

obo:VT_0005466 a rdfs:Class ;
  rdfs:label "T-helper 2 physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the type of T-helper cell whose cytokine production promotes defense against extracellular parasites and humoral immune responses typical of allergy." ;
  rdfs:subClassOf obo:VT_0005463 .

obo:VT_0000016 a rdfs:Class ;
  rdfs:label "hindlimb conformation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the assessment of the overall structure and proportions of the posterior or inferior jointed appendages of an animal, used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_1000738 .

obo:VT_0004190 a rdfs:Class ;
  rdfs:label "direction of embryo turning" ;
  rdfs:comment "The direction of axial rotation of the embryo when viewed towards the caudal pole during the late primitive streak/early somite stage (Mus E8.5-E9.5)." ;
  rdfs:subClassOf obo:VT_0001700 .

obo:VT_0002352 a rdfs:Class ;
  rdfs:label "popliteal lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph nodes which drain the legs." ;
  rdfs:subClassOf obo:VT_0008463 .

obo:VT_0001663 a rdfs:Class ;
  rdfs:label "gastrointestinal system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organ system that converts ingested food to nutrients and energy." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0001075 a rdfs:Class ;
  rdfs:label "accessory nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the 11th cranial nerve, which normally originates from neurons in the medulla and in the cervical spinal cord." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0004047 a rdfs:Class ;
  rdfs:label "milk trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the content or the appearance of a fluid secreted by the mammary glands of female mammals for the nourishment of their young." ;
  rdfs:subClassOf obo:VT_0000000 .

obo:VT_1000280 a rdfs:Class ;
  rdfs:label "humerus width" ;
  rdfs:comment "The distance from side to side of the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0100000 .

obo:VT_0000942 a rdfs:Class ;
  rdfs:label "motor neuron axon outgrowth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the projection of innervating motor neurons to endplate targets." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010333 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-9-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at C-9." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010928 a rdfs:Class ;
  rdfs:label "bone marrow physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the soft tissue that fills the core cavities of bones." ;
  rdfs:subClassOf obo:VT_0010254 .

obo:VT_0006173 a rdfs:Class ;
  rdfs:label "myeloid dendritic cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of phagocytic cells of the myeloid lineage that capture antigens in the periphery and then migrate to the lymphoid organs and secrete cytokines to initiate immune responses." ;
  rdfs:subClassOf obo:VT_0005461 , obo:VT_0008248 .

obo:VT_0010304 a rdfs:Class ;
  rdfs:label "milk saturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of straight chain monocarboxylic acids without double bonds in their chains found in milk fat." ;
  rdfs:subClassOf obo:VT_0010303 .

obo:VT_0004076 a rdfs:Class ;
  rdfs:label "vitelline vascular remodeling trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the conversion of the primary (honeycomb-like) vascular plexus of the yolk sac into a mature vascular network." ;
  rdfs:subClassOf obo:VT_0004264 .

obo:VT_0008111 a rdfs:Class ;
  rdfs:label "granulocyte development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of leukocytes that have abundant granules in the cytoplasm, including basophils, neutrophils, and eosinophils." ;
  rdfs:subClassOf obo:VT_0001601 .

obo:VT_0011348 a rdfs:Class ;
  rdfs:label "horn morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of a pointed projection of the skin on the head of various animals, consisting of a covering of horn (keratin and other proteins) surrounding a core of living bone." ;
  rdfs:subClassOf obo:VT_0015071 .

obo:VT_0003185 a rdfs:Class ;
  rdfs:label "angiotensin I-converting enzyme activity" ;
  rdfs:comment "The degree of function or response of the exopeptidase that catalyses the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor, and is also involved in the inactivation of bradykinin." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0008659 a rdfs:Class ;
  rdfs:label "interleukin-10 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine produced by a variety of cell types, including T-cells, monocytes, dendritic cells and epithelial cells that exerts a variety of effects on immunoregulation and inflammation." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0010718 a rdfs:Class ;
  rdfs:label "response to cocaine trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of cocaine exposure." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0000084 a rdfs:Class ;
  rdfs:label "fontanelle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the membranous interval at the margins of cranial bones in neonates." ;
  rdfs:subClassOf obo:VT_0003935 , obo:VT_0010005 .

obo:VT_4000013 a rdfs:Class ;
  rdfs:label "neuroendocrine gland physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organized aggregations of cells that release hormones in response to neural stimuli." ;
  rdfs:subClassOf obo:VT_0002164 .

obo:VT_0000867 a rdfs:Class ;
  rdfs:label "cerebellum anterior vermis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anterior portion of the narrow middle zone between the two hemispheres of the cerebellum that is located anterior to the primary fissure." ;
  rdfs:subClassOf obo:VT_0000864 .

obo:VT_0000835 a rdfs:Class ;
  rdfs:label "subthalamic nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of 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:VT_0000834 , obo:VT_0006007 .

obo:VT_0010438 a rdfs:Class ;
  rdfs:label "response to prion infection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter immune processes or function as a result of invasion of the tissues by small, infectious proteinaceous particles of non-nucleic acid composition." ;
  rdfs:subClassOf obo:VT_0010434 .

obo:VT_0000844 a rdfs:Class ;
  rdfs:label "pontine flexure morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bend in the developing neural tube that produces a thinning of the roof of the pons and medulla oblongata and defines the boundary between the metencephalon and medulla oblongata in the embryo." ;
  rdfs:subClassOf obo:VT_0000913 .

obo:VT_0010239 a rdfs:Class ;
  rdfs:label "crop mass" ;
  rdfs:comment "The amount of matter in the esophageal anatomical diverticulum in some species." ;
  rdfs:subClassOf obo:VT_0010238 .

obo:VT_0010361 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-11,trans-13-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-11 and C-13." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0005254 a rdfs:Class ;
  rdfs:label "visual axis alignment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the alignment of the visual axes of the eyes." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0005452 a rdfs:Class ;
  rdfs:label "adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of fat-storing cells/tissue." ;
  rdfs:subClassOf obo:VT_0000003 .

obo:VT_0010668 a rdfs:Class ;
  rdfs:label "muscle dry matter amount" ;
  rdfs:comment "The proportion, quantity, or volume of solids (all constituents excluding water) in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0011296 a rdfs:Class ;
  rdfs:label "femur molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_0000559 .

obo:VT_1000735 a rdfs:Class ;
  rdfs:label "hoof angle" ;
  rdfs:comment "The angle at which the hoof wall meets the ground." ;
  rdfs:subClassOf obo:VT_0011223 .

obo:VT_0011383 a rdfs:Class ;
  rdfs:label "colostrum immunoglobulin G2 amount" ;
  rdfs:comment "The proportion, quantity, or volume of immunoglobulin class G2 in colostrum, the thin, yellow, milky fluid secreted by the mammary gland, before or after parturition, preceding the production of milk." ;
  rdfs:subClassOf obo:VT_0010259 .

obo:VT_1000694 a rdfs:Class ;
  rdfs:label "muscle glycogen homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the state of equilibrium in muscle with respect to this readily converted carbohydrate reserve, found in most tissues, especially liver and muscle." ;
  rdfs:subClassOf obo:VT_0002106 .

obo:VT_0001308 a rdfs:Class ;
  rdfs:label "lens polarity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the orientation of the lens during development." ;
  rdfs:subClassOf obo:VT_0005545 .

obo:VT_0010976 a rdfs:Class ;
  rdfs:label "blood L-hisitidine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of the amino acid histidine, an alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0007052 a rdfs:Class ;
  rdfs:label "aortic arch configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the portion of the descending aorta proceeding from the arch of the aorta and extending to the diaphragm." ;
  rdfs:subClassOf obo:VT_0004113 .

obo:VT_0011079 a rdfs:Class ;
  rdfs:label "precentral gyrus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the area of the frontal lobe that contains the cell bodies of the primary motor pathways." ;
  rdfs:subClassOf obo:VT_0000799 .

obo:VT_0011181 a rdfs:Class ;
  rdfs:label "gastric mucosa ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the surface epithelium of the stomach, which is made up of several different cell types. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011180 .

obo:VT_0001334 a rdfs:Class ;
  rdfs:label "optic tract size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the paired bands of optic nerve fibers running from the optic chiasma to the lateral geniculate body and midbrain." ;
  rdfs:subClassOf obo:VT_0004267 .

obo:VT_0000789 a rdfs:Class ;
  rdfs:label "cerebral cortex thickness" ;
  rdfs:comment "The distance between the surfaces of the mantle covering the surface of the cerebral hemispheres." ;
  rdfs:subClassOf obo:VT_0000788 .

obo:VT_0008897 a rdfs:Class ;
  rdfs:label "blood immunoglobulin G2c amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin class G2c." ;
  rdfs:subClassOf obo:VT_0011218 .

obo:VT_0011093 a rdfs:Class ;
  rdfs:label "lymph node ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the oval or bean shaped bodies located along the lymphatic system that consist of densely packed lymphocytes, lymph fluid and connective tissue; the sites where acquired immune responses are launched. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011092 .

obo:VT_0010184 a rdfs:Class ;
  rdfs:label "lymphocyte proliferation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which lymphocyte populations (any of the white blood cells that include B cells, T cells, and NK cells) undergo expansion by cell division." ;
  rdfs:subClassOf obo:VT_0003945 , obo:VT_0010417 .

obo:VT_1000746 a rdfs:Class ;
  rdfs:label "skeletal muscle myosin isoform amount" ;
  rdfs:comment "The proportion, quantity, or volume of any of several forms of the thick filament protein in any of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0011239 .

obo:VT_0010423 a rdfs:Class ;
  rdfs:label "gonadal fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the ovaries or testes." ;
  rdfs:subClassOf obo:VT_0005335 .

obo:VT_0011266 a rdfs:Class ;
  rdfs:label "uterine cervix ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the opening of the uterus to the vagina. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011265 .

obo:VT_0003811 a rdfs:Class ;
  rdfs:label "hair cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the principal structural component of the hair shaft." ;
  rdfs:subClassOf obo:VT_0003809 .

obo:VT_0001068 a rdfs:Class ;
  rdfs:label "mandibular nerve branching morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the projected axons of the mandibular nerve, the third division of the trigeminal nerve." ;
  rdfs:subClassOf obo:VT_0001067 .

obo:VT_0008497 a rdfs:Class ;
  rdfs:label "blood immunoglobulin G2b amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin class G2b." ;
  rdfs:subClassOf obo:VT_0011218 .

obo:VT_0010754 a rdfs:Class ;
  rdfs:label "kidney adrenomedullin amount" ;
  rdfs:comment "The proportion, quantity, or volume of adrenomedullin in the kidney." ;
  rdfs:subClassOf obo:VT_0010558 .

obo:VT_2000000 a rdfs:Class ;
  rdfs:label "arterial blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood pressure in the arteries." ;
  rdfs:subClassOf obo:VT_0000183 .

obo:VT_0010008 a rdfs:Class ;
  rdfs:label "skin adnexa development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of any of the tissues or structures associated with or embedded in the skin." ;
  rdfs:subClassOf obo:VT_0100018 .

obo:VT_0004350 a rdfs:Class ;
  rdfs:label "humerus length" ;
  rdfs:comment "The distance from point to point along the longest axis of the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0100000 .

obo:VT_0003627 a rdfs:Class ;
  rdfs:label "leukocyte tethering or rolling trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the transient adhesive interactions between leukocytes and endothelial cells lining blood vessels mediated primarily by selectins and which are typically the first step in cellular extravasation." ;
  rdfs:subClassOf obo:VT_0009858 .

obo:VT_0002266 a rdfs:Class ;
  rdfs:label "right major bronchus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the conducting airway leading to the right lobe of the lungs." ;
  rdfs:subClassOf obo:VT_0002264 .

obo:VT_0008737 a rdfs:Class ;
  rdfs:label "spleen physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organ that filters blood and stores red corpuscles and platelets." ;
  rdfs:subClassOf obo:VT_0003762 , obo:VT_0010254 .

obo:VT_0010965 a rdfs:Class ;
  rdfs:label "blood glycine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the simplest (and the only achiral) proteinogenic amino acid, with a hydrogen atom as its side chain." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_1000430 a rdfs:Class ;
  rdfs:label "muscle cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume of the most abundant steroid in animal tissues present in the total lipid extracted from the contractile tissue that effects movement." ;
  rdfs:subClassOf obo:VT_0003947 , obo:VT_1000479 .

obo:VT_0000164 a rdfs:Class ;
  rdfs:label "cartilage development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the nonvascular, resilient, flexible connective tissue found primarily in joints, walls of the thorax, and tubular structures, but which also comprises most of the skeleton in early fetal life. Some aquatic vertebrates have skeletons comprised entirely of cartilage." ;
  rdfs:subClassOf obo:VT_0010065 .

obo:VT_0010698 a rdfs:Class ;
  rdfs:label "blood HDL triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the triglyceride in small lipoproteins that transport triglycerides and cholesterol." ;
  rdfs:subClassOf obo:VT_0002644 .

obo:VT_0004271 a rdfs:Class ;
  rdfs:label "paw/hand/foot/hoof morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the pedal or prehensile extremity of vertebrates." ;
  rdfs:subClassOf obo:VT_0002109 .

obo:VT_0010157 a rdfs:Class ;
  rdfs:label "cochlear inner hair cell efferent nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers to the normally dense plexus of efferent terminals that contact radial fibers of the spiral ganglion below cochlear IHCs or of the sparser plexus of terminals positioned around IHC somata; normally, lateral olivocochlear neurons, which are found in and/or around the lateral superior olive, project mainly to the ipsilateral cochlea and terminate mostly on dendritic fibers below IHCs." ;
  rdfs:subClassOf obo:VT_0004393 .

obo:VT_0010657 a rdfs:Class ;
  rdfs:label "comb size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the vascular, red cutaneous structure attached in a sagittal plane to the dorsum of the skull of domestic fowl." ;
  rdfs:subClassOf obo:VT_0010656 .

obo:VT_0011309 a rdfs:Class ;
  rdfs:label "inner ear ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the labyrinth of the ear, including the semicircular canals, vestibule and cochlea. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011262 .

obo:VT_0002385 a rdfs:Class ;
  rdfs:label "lingual tonsillar tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph tissue on the floor of the oropharyngeal passage, near the root of the tongue." ;
  rdfs:subClassOf obo:VT_0002379 .

obo:VT_0010127 a rdfs:Class ;
  rdfs:label "bursa of Fabricius size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of an epithelial outgrowth of the cloaca in birds; prior to involution, it is where B-lymphocyte maturation occurs." ;
  rdfs:subClassOf obo:VT_0002221 .

obo:VT_0011316 a rdfs:Class ;
  rdfs:label "cerebral blood vessel ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the vessels through which blood circulates in the cerebrum. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011250 .

obo:VT_0003854 a rdfs:Class ;
  rdfs:label "forelimb stylopod morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the proximal element of the developing forelimb that will give rise to the humerus." ;
  rdfs:subClassOf obo:VT_0006279 .

obo:VT_0005034 a rdfs:Class ;
  rdfs:label "anus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the lower opening of the digestive tract." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0002742 a rdfs:Class ;
  rdfs:label "submandibular lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lymph nodes beneath the mandible that receive vessels from the face and tongue and drain into the superior deep cervical nodes." ;
  rdfs:subClassOf obo:VT_0000701 , obo:VT_0009627 .

obo:VT_0001345 a rdfs:Class ;
  rdfs:label "meibomian gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the sebaceous glands embedded in the tarsal plate of each eyelid." ;
  rdfs:subClassOf obo:VT_0005252 .

obo:VT_0002735 a rdfs:Class ;
  rdfs:label "chemical nociception trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to sense pain elicited by chemical stimulation." ;
  rdfs:subClassOf obo:VT_0015100 .

obo:VT_0002453 a rdfs:Class ;
  rdfs:label "B cell antigen presentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of B lymphocytes to process and/or present antigen." ;
  rdfs:subClassOf obo:VT_0001835 , obo:VT_0002459 .

obo:VT_0005325 a rdfs:Class ;
  rdfs:label "kidney glomerulus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the capillary loops at the beginning of each nephric tubule in the kidney." ;
  rdfs:subClassOf obo:VT_0002827 .

obo:VT_0010023 a rdfs:Class ;
  rdfs:label "forelimb length" ;
  rdfs:comment "The distance from point to point along the longest axis of the anterior/superior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0000550 .

obo:VT_0010486 a rdfs:Class ;
  rdfs:label "cardiac output trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ejection of blood from the heart into the aorta." ;
  rdfs:subClassOf obo:VT_0000182 .

obo:VT_0010203 a rdfs:Class ;
  rdfs:label "proventriculus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the first muscular and glandular part of the stomach of birds where digestive enzymes are secreted and mixed with food." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_1000688 a rdfs:Class ;
  rdfs:label "metatarsus mass" ;
  rdfs:comment "The amount of matter in any of the bones of the lower/hindlimbs that articulate proximally with the tarsus and distally with the phalanges." ;
  rdfs:subClassOf obo:VT_0003072 .

obo:VT_0006257 a rdfs:Class ;
  rdfs:label "fungiform papillae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mushroom-shaped papillae, which have a single taste bud at the tip, located mostly on the dorsal anterior portion of the tongue." ;
  rdfs:subClassOf obo:VT_0006256 .

obo:VT_0002428 a rdfs:Class ;
  rdfs:label "semicircular canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ of balance composed of three long bony tubes of the labyrinth." ;
  rdfs:subClassOf obo:VT_0002729 .

obo:VT_0000791 a rdfs:Class ;
  rdfs:label "cerebral cortex layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the layers of the gray cellular mantle covering the surface of the brain." ;
  rdfs:subClassOf obo:VT_0000788 .

obo:VT_0001063 a rdfs:Class ;
  rdfs:label "trochlear nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the 4th cranial nerve, which normally carries the motor innervation of the superior oblique muscles of the eye." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0000056 a rdfs:Class ;
  rdfs:label "urine trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the fluid and dissolved substances excreted by the kidneys." ;
  rdfs:subClassOf obo:VT_0011375 , obo:VT_1000777 .

obo:VT_0000027 a rdfs:Class ;
  rdfs:label "head width" ;
  rdfs:comment "The distance from side to side across the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0000002 .

obo:VT_0011255 a rdfs:Class ;
  rdfs:label "cerebral cortex ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the surface of the cerebral hemisphere that develops from the telencephalon and folds into gyri; it is responsible for intellectual faculties and higher mental functions. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011250 , obo:VT_0011254 .

obo:VT_0010075 a rdfs:Class ;
  rdfs:label "occipitomastoid suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cranial suture that lies between the occipital bone and the mastoid portion of the temporal bones; continuous with the lambdoid suture." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0010019 a rdfs:Class ;
  rdfs:label "epididymis mass" ;
  rdfs:comment "The amount of matter in the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens." ;
  rdfs:subClassOf obo:VT_0002631 .

obo:VT_0008677 a rdfs:Class ;
  rdfs:label "interleukin-16 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine produced by activated T-cells that stimulates the migration of CD4-positive lymphocytes and monocytes." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0011242 a rdfs:Class ;
  rdfs:label "leukocyte ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the nucleated cells of the myeloid or lymphoid lineages, found in blood or other tissue. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011241 .

obo:VT_0002783 a rdfs:Class ;
  rdfs:label "secretion by ovary trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances from the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0002779 , obo:VT_0003507 .

obo:VT_0010811 a rdfs:Class ;
  rdfs:label "heart left ventricle interstitial epinephrine amount" ;
  rdfs:comment "The proportion, quantity, or volume of interstitial epinephrine in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010561 .

obo:VT_0010941 a rdfs:Class ;
  rdfs:label "erythrocyte potassium amount" ;
  rdfs:comment "The proportion, quantity, or volume in red blood cells of the monovalent cation of this alkali metal element." ;
  rdfs:subClassOf obo:VT_0010535 .

obo:VT_0005336 a rdfs:Class ;
  rdfs:label "inguinal fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue found in the groin." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0004357 a rdfs:Class ;
  rdfs:label "tibia length" ;
  rdfs:comment "The distance from point to point along the longest axis of the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0100001 .

obo:VT_0010822 a rdfs:Class ;
  rdfs:label "blood inhibin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of either of two glycoproteins (designated A and B), secreted by the gonads, that inhibit pituitary production of follicle-stimulating hormone." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0011092 a rdfs:Class ;
  rdfs:label "lymph node molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the oval or bean shaped bodies located along the lymphatic system that consist of densely packed lymphocytes, lymph fluid and connective tissue; the sites where acquired immune responses are launched." ;
  rdfs:subClassOf obo:VT_0002339 .

obo:VT_0010526 a rdfs:Class ;
  rdfs:label "aorta physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0000170 .

obo:VT_0010285 a rdfs:Class ;
  rdfs:label "milk nitrogen amount" ;
  rdfs:comment "The proportion, quantity, or volume of this element in milk." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0006019 a rdfs:Class ;
  rdfs:label "tympanic membrane size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the drum membrane that forms the greater part of the lateral wall of the tympanic cavity." ;
  rdfs:subClassOf obo:VT_0006018 .

obo:VT_2000020 a rdfs:Class ;
  rdfs:label "heart muscle relaxation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of striated, involuntary muscle comprising the myocardium to lengthen following contraction." ;
  rdfs:subClassOf obo:VT_0010110 , obo:VT_2000009 .

obo:VT_0010407 a rdfs:Class ;
  rdfs:label "sperm head size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the portion of the spermatozoa containing the nucleus." ;
  rdfs:subClassOf obo:VT_0010405 , obo:VT_0011211 .

obo:VT_0000005 a rdfs:Class ;
  rdfs:label "heart right atrium size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the right upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000019 , obo:VT_0003140 .

obo:VT_0002093 a rdfs:Class ;
  rdfs:label "obsolete cornea/lens morphology trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the shape, structure, color or pattern of the lens or cornea.
consider: VT:0001312 or VT:0001303""" .

obo:VT_0010054 a rdfs:Class ;
  rdfs:label "muscle fatty acid trans-11-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a monounsaturated fatty acid (C18H34O2), with a carbon-carbon double bond at C-11 position, present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010049 .

obo:VT_0010837 a rdfs:Class ;
  rdfs:label "tissue norepinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in a tissue of a catecholamine hormone that functions as a neurotransmitter and is the precursor to epinephrine." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0003764 a rdfs:Class ;
  rdfs:label "palate depth" ;
  rdfs:comment "The average distance of the deepest point in the midline of the palate relative to the midline point on the anterior crest of the alveolar gum pad ridge." ;
  rdfs:subClassOf obo:VT_0003755 .

obo:VT_0000909 a rdfs:Class ;
  rdfs:label "facial motor nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of motor neurons residing in the pons that innervate the muscles of facial expression." ;
  rdfs:subClassOf obo:VT_0000848 .

obo:VT_0010672 a rdfs:Class ;
  rdfs:label "tarsometatarsus mass" ;
  rdfs:comment "The amount of matter in the long bone in the lower leg of birds, formed by fusion of tarsal and metatarsal structures." ;
  rdfs:subClassOf obo:VT_0010671 .

obo:VT_0006281 a rdfs:Class ;
  rdfs:label "tail development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the appendage at the caudal end of the vertebral column in some vertebrates including remnant structures in species that normally lack a tail." ;
  rdfs:subClassOf obo:VT_0015069 .

obo:VT_0003099 a rdfs:Class ;
  rdfs:label "retinal attachment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the connection of the retina from the underlying inner wall of the eye." ;
  rdfs:subClassOf obo:VT_0001325 .

obo:VT_0010553 a rdfs:Class ;
  rdfs:label "tongue integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor." ;
  rdfs:subClassOf obo:VT_0000762 .

obo:VT_0010913 a rdfs:Class ;
  rdfs:label "kidney tubule molecule reabsorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the cells of the loops of Henle, proximal and distal convoluted tubules, and collecting ducts in the kidney reabsorb water, electrolytes, or other molecules, thereby removing them from the newly produced urine." ;
  rdfs:subClassOf obo:VT_0003606 .

obo:VT_0010389 a rdfs:Class ;
  rdfs:label "milk butyrophilin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of butyrophilin, one of the three predominant proteins in the milk fat globule membrane." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0001330 a rdfs:Class ;
  rdfs:label "optic nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the second cranial nerve which is responsible for conveying visual information from the retina to the brain; it extends from the retina to the optic chiasma where part of its fibers become the optic tract and cross to the opposite side and pass to the geniculate bodies." ;
  rdfs:subClassOf obo:VT_0001056 , obo:VT_0005195 .

obo:VT_0011010 a rdfs:Class ;
  rdfs:label "muscle phosphorus amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this nonmetallic essential element which occurs naturally in phosphates and takes part in a broad variety of chemical reactions." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0011102 a rdfs:Class ;
  rdfs:label "vibrissa follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tubular invaginations of the epidermis enclosing the hair roots and from which grow the vibrissae located on the muzzle and face of many species." ;
  rdfs:subClassOf obo:VT_0010007 .

obo:VT_0010920 a rdfs:Class ;
  rdfs:label "cerebral artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the arteries which irrigate the cerebrum of the brain." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_1000734 a rdfs:Class ;
  rdfs:label "hoof diagonal" ;
  rdfs:comment "The distance from the tip of the hoof to the hairline at the back of the hoof." ;
  rdfs:subClassOf obo:VT_0011223 .

obo:VT_0005247 a rdfs:Class ;
  rdfs:label "extraocular muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the striated muscles that move the eye and include: superior rectus, inferior rectus, medial rectus, lateral rectus, superior oblique, inferior oblique, retractor bulbi, levator palpebrae superioris." ;
  rdfs:subClassOf obo:VT_0000759 , obo:VT_0003686 .

obo:VT_0010106 a rdfs:Class ;
  rdfs:label "limb muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscles of the anterior or posterior extremities." ;
  rdfs:subClassOf obo:VT_0002109 , obo:VT_0003358 .

obo:VT_0001048 a rdfs:Class ;
  rdfs:label "enteric neuron quantity" ;
  rdfs:comment "The proportion or number of neurons that innervate the alimentary tube." ;
  rdfs:subClassOf obo:VT_0001046 .

obo:VT_0011158 a rdfs:Class ;
  rdfs:label "voluntary immobility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to intentional lack of movement executed with a purpose based on learning and/or experience." ;
  rdfs:subClassOf obo:VT_0010444 .

obo:VT_0010593 a rdfs:Class ;
  rdfs:label "liver phytosterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the bile-secreting exocrine gland of a plant-derived steroid with one OH group." ;
  rdfs:subClassOf obo:VT_0010584 .

obo:VT_0003876 a rdfs:Class ;
  rdfs:label "cerebrum physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the largest part of the brain, derived from the telencephalon, which is composed of right and left hemispheres, each of which contains an outer cerebral cortex and a subcortical basal ganglia; cerebral functions include sensorimotor, emotional, and intellectual activities." ;
  rdfs:subClassOf obo:VT_0015058 .

obo:VT_0005391 a rdfs:Class ;
  rdfs:label "vision system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to see." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0002110 a rdfs:Class ;
  rdfs:label "digit morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the fingers or toes, or their corresponding parts in other vertebrates." ;
  rdfs:subClassOf obo:VT_0004271 .

obo:VT_0010049 a rdfs:Class ;
  rdfs:label "muscle unsaturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons present in the contractile tissue that effects movement; the carbon chain has one or more double or triple carbon-carbon bonds." ;
  rdfs:subClassOf obo:VT_0003249 .

obo:VT_0011087 a rdfs:Class ;
  rdfs:label "mammary gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011086 .

obo:VT_0008754 a rdfs:Class ;
  rdfs:label "T cell receptor V(D)J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which T cell receptor V, D, and J, or V and J gene segments, depending on the specific locus, are recombined within a single locus." ;
  rdfs:subClassOf obo:VT_0002145 .

obo:VT_0003330 a rdfs:Class ;
  rdfs:label "auditory tube morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the tube connecting the tympanic cavity and the nasopharynx that allows equalization of pressure between the tympanic cavity and the environment." ;
  rdfs:subClassOf obo:VT_0000049 .

obo:VT_0005275 a rdfs:Class ;
  rdfs:label "skin tensile strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the membranous protective covering of the body to withstand applied tension without tearing." ;
  rdfs:subClassOf obo:VT_0005501 .

obo:VT_0000892 a rdfs:Class ;
  rdfs:label "cochlear hair cell stereociliary bundle orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of inner and/or outer hair cell stereociliary bundles in relation to the hair cells." ;
  rdfs:subClassOf obo:VT_0000816 .

obo:VT_0005362 a rdfs:Class ;
  rdfs:label "Langerhans cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the stellate dendritic cell of myeloid origin, that appears clear on light microscopy and has a dark-staining, indented nucleus and characteristic inclusions (Birbeck granules) in the cytoplasm; Langerhans cells are found principally in the stratum spinosum of the epidermis, but they also occur in other stratified epithelia and have been identified in the lung, lymph nodes, spleen, and thymus." ;
  rdfs:subClassOf obo:VT_0002376 .

obo:VT_0004941 a rdfs:Class ;
  rdfs:label "regulatory T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the specialized subpopulation of T cells that act to suppress activation of the immune system and thus maintain immune system homeostasis and prevent pathological self-reactivity; these may include T cells that express the CD8 transmembrane glycoprotein (CD8-positive T cells), those that express CD4 and CD25 (CD4-positive, CD25-positive regulatory T cells or Tregs) and other T cell types that have suppressor function." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0001835 a rdfs:Class ;
  rdfs:label "antigen presentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which an antigen-presenting cell expresses antigen (peptide or lipid) on its cell surface in association with an MHC protein complex." ;
  rdfs:subClassOf obo:VT_0001790 .

obo:VT_0010463 a rdfs:Class ;
  rdfs:label "coat/hair pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the hair, wool, or fur of an organism, that is, of either a single cylindrical, keratinized, often pigmented filament characteristically growing from the epidermis of a mammal, or of the aggregate of all such filaments." ;
  rdfs:subClassOf obo:VT_0000367 .

obo:VT_0008095 a rdfs:Class ;
  rdfs:label "memory B cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of distinctly differentiated long-lived B cells that are readily activated upon reencounter of an antigenic determinant; memory B cells differentiate from antigen-activated B cells which have been selected for expression of higher affinity immunoglobulin." ;
  rdfs:subClassOf obo:VT_0002144 .

obo:VT_0002098 a rdfs:Class ;
  rdfs:label "vibrissa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the stiff hairs projecting from the face, which act as touch receptors." ;
  rdfs:subClassOf obo:VT_0000432 , obo:VT_0010007 .

obo:VT_0001771 a rdfs:Class ;
  rdfs:label "blood magnesium amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this alkaline earth element, atomic number 12, atomic symbol Mg." ;
  rdfs:subClassOf obo:VT_0000068 , obo:VT_0010998 .

obo:VT_0002244 a rdfs:Class ;
  rdfs:label "turbinated bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small curved bones that extend horizontally along the lateral wall of the nasal passage." ;
  rdfs:subClassOf obo:VT_0002233 , obo:VT_0005274 .

obo:VT_0010242 a rdfs:Class ;
  rdfs:label "reticulo-rumen mass" ;
  rdfs:comment "The amount of matter in the forestomach of ruminants, composed of the reticulum and the rumen which communicates anteriorly with the oesophagus and posteriorly with the omasum." ;
  rdfs:subClassOf obo:VT_0010237 , obo:VT_0010240 .

obo:VT_0005354 a rdfs:Class ;
  rdfs:label "ilium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the broad, flaring portion of the hip bone, which fuses with the ischium and the pubis." ;
  rdfs:subClassOf obo:VT_0010090 .

obo:VT_0006000 a rdfs:Class ;
  rdfs:label "corneal epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the layers of epithelial cells covering the front of the cornea." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0001449 a rdfs:Class ;
  rdfs:label "obsolete learning/memory trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the ability to ascertain, retain or recall information." .

obo:VT_0011050 a rdfs:Class ;
  rdfs:label "limb joint molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in a limb joint, any joint (mostly synovial) that is part of a limb." ;
  rdfs:subClassOf obo:VT_0011049 , obo:VT_0011283 .

obo:VT_1000640 a rdfs:Class ;
  rdfs:label "uterine horn mass" ;
  rdfs:comment "The matter of the upper right or left portion of the hollow muscular organ where the embryo/fetus develops to which the uterine tube is connected." ;
  rdfs:subClassOf obo:VT_0010394 , obo:VT_0010611 .

obo:VT_0001464 a rdfs:Class ;
  rdfs:label "incus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the middle of the three auditory ossicles." ;
  rdfs:subClassOf obo:VT_0003739 , obo:VT_0005106 .

obo:VT_0008211 a rdfs:Class ;
  rdfs:label "mature B cell quantity" ;
  rdfs:comment "The proportion or number of the mature form of B cells, a type of lymphocyte whose defining characteristic is the expression of an immunoglobulin complex." ;
  rdfs:subClassOf obo:VT_0002458 , obo:VT_0008171 .

obo:VT_0011024 a rdfs:Class ;
  rdfs:label "colon ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the portion of the large intestine between the cecum and the rectum. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010894 , obo:VT_0011247 .

obo:VT_0010682 a rdfs:Class ;
  rdfs:label "inguinal canal integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of  the passage in the lower abdominal wall through which the spermatic cord in the male or the round ligament in the female, nerves and vessels pass from the pelvic cavity to the scrotum or labia majora, respectively." ;
  rdfs:subClassOf obo:VT_0003673 .

obo:VT_0002820 a rdfs:Class ;
  rdfs:label "premaxillary bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the anterior and inner portion of the maxilla." ;
  rdfs:subClassOf obo:VT_0000455 .

obo:VT_0000986 a rdfs:Class ;
  rdfs:label "Merkel's receptor quantity" ;
  rdfs:comment "The proportion or number of modified epidermal cells located in the stratum basale and found mostly in areas where sensory perception is acute." ;
  rdfs:subClassOf obo:VT_0000985 .

obo:VT_1000521 a rdfs:Class ;
  rdfs:label "adipose fatty acid C17:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C17H34O2) present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005286 .

obo:VT_0008244 a rdfs:Class ;
  rdfs:label "peritoneal macrophage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a mononuclear phagocyte that develops from bone marrow precursors but is resident in the peritoneum." ;
  rdfs:subClassOf obo:VT_0002446 .

obo:VT_0010823 a rdfs:Class ;
  rdfs:label "milk lactoperoxidase amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of an enzyme that catalyzes the radioiodination of tyrosine and its derivatives and of peptides containing tyrosine." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0011260 a rdfs:Class ;
  rdfs:label "cerebellum molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the part of the metencephalon that lies in the posterior cranial fossa dorsal to the pons and medulla that is concerned with the coordination of movement and learning of motor skills." ;
  rdfs:subClassOf obo:VT_0000849 , obo:VT_0010585 .

obo:VT_0010089 a rdfs:Class ;
  rdfs:label "shoulder girdle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the incomplete bony ring by which the upper/fore limbs are attached to the axial skeleton." ;
  rdfs:subClassOf obo:VT_0010091 .

obo:VT_0010214 a rdfs:Class ;
  rdfs:label "jejunum muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the muscle layer of the portion of the small intestine that extends from the duodenum to the ileum." ;
  rdfs:subClassOf obo:VT_0004002 .

obo:VT_0010046 a rdfs:Class ;
  rdfs:label "fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body fluid or tissue of organic, monobasic acids derived from hydrocarbons; they are saturated and unsaturated." ;
  rdfs:subClassOf obo:VT_0001547 .

obo:VT_0002579 a rdfs:Class ;
  rdfs:label "secondary lens fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the lens fibers which result from elongation and differentiation of epithelial cells throughout life; they are arranged around a core of primary lens fibers." ;
  rdfs:subClassOf obo:VT_0002840 .

obo:VT_0003088 a rdfs:Class ;
  rdfs:label "prepulse inhibition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of a relatively mild stimulus to suppress the response to a strong, startle-eliciting stimulus." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_1000161 a rdfs:Class ;
  rdfs:label "milk total fat amount" ;
  rdfs:comment "The total proportion, quantity, or volume of fat in milk." ;
  rdfs:subClassOf obo:VT_0010261 .

obo:VT_0001105 a rdfs:Class ;
  rdfs:label "peripheral nervous system glial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the non-neuronal cells of the peripheral nervous system that form the myelin insulation of nervous pathways, guide neuronal migration during development, and exchange metabolites with neurons." ;
  rdfs:subClassOf obo:VT_0003634 .

obo:VT_0011173 a rdfs:Class ;
  rdfs:label "monocyte physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and released into the blood." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0010004 a rdfs:Class ;
  rdfs:label "milk flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the rate of milk flow from the mammary gland." ;
  rdfs:subClassOf obo:VT_0003838 .

obo:VT_0003617 a rdfs:Class ;
  rdfs:label "urinary bladder cell quantity" ;
  rdfs:comment "The proportion or number of cells in the inflatable musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0000538 .

obo:VT_0006070 a rdfs:Class ;
  rdfs:label "retinal photoreceptor quantity" ;
  rdfs:comment "The proportion or number of rods and/or cones." ;
  rdfs:subClassOf obo:VT_0001004 .

obo:VT_0001231 a rdfs:Class ;
  rdfs:label "epidermis stratum basale morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the deepest layer of the epidermis, which is composed of dividing stem cells and anchoring cells." ;
  rdfs:subClassOf obo:VT_0001216 .

obo:VT_0015045 a rdfs:Class ;
  rdfs:label "thoracic cavity morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cavity in the vertebrate body enclosed by the ribcage between the diaphragm and the neck, and contains the lungs, heart, thoracic aorta, pulmonary artery and its branches, thymus gland, and the respiratory airway." ;
  rdfs:subClassOf obo:VT_0004134 .

obo:VT_0011133 a rdfs:Class ;
  rdfs:label "blood secretin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this polypeptide hormone, secreted by the wall of the upper part of the small intestine (duodenum), that regulates gastric acid secretion and water homeostasis throughout the body." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0001322 a rdfs:Class ;
  rdfs:label "iris morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the adjustable membrane, composed of the stroma and pigmented epithelium, located just in front of the crystalline lens within the eye." ;
  rdfs:subClassOf obo:VT_0005194 .

obo:VT_0000057 a rdfs:Class ;
  rdfs:label "ossification trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of bone formation or conversion of fibrous tissue or cartilage into bone." ;
  rdfs:subClassOf obo:VT_0010005 .

obo:VT_0002139 a rdfs:Class ;
  rdfs:label "hepatobiliary system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the liver, gall bladder, or bile ducts." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0010404 a rdfs:Class ;
  rdfs:label "cervical fold quantity" ;
  rdfs:comment "The proportion or number of ridges in the lining of the cervical canal." ;
  rdfs:subClassOf obo:VT_0001135 .

obo:VT_0010020 a rdfs:Class ;
  rdfs:label "seminiferous tubule diameter" ;
  rdfs:comment "The distance across the tubules in the testes where spermatogenesis occurs." ;
  rdfs:subClassOf obo:VT_0001153 .

obo:VT_0004940 a rdfs:Class ;
  rdfs:label "B-1 B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the subset of B cells found predominantly in the peritoneum, pleural cavities, and spleen, which are enriched for self-reactivity; B-1 B cells are thought to be the primary source of natural IgM immunoglobulin, that is, IgM produced in large quantities without prior antigenic stimulation and generally reactive against various microorganisms, as well as the source of T-independent IgA immunoglobulin in the mucosal areas." ;
  rdfs:subClassOf obo:VT_0008171 .

obo:VT_0006061 a rdfs:Class ;
  rdfs:label "heart atrium symmetry" ;
  rdfs:comment "Correspondence in size, shape, and relative position of the upper chambers of the heart on opposite sides of a dividing line or plane or about a center or axis." ;
  rdfs:subClassOf obo:VT_0003105 .

obo:VT_0000041 a rdfs:Class ;
  rdfs:label "endolymphatic duct size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the small membranous canal, connecting with both saccule and utricle of the membranous labyrinth, passing through the aqueduct of vestibule, and terminating in the endolymphatic sac." ;
  rdfs:subClassOf obo:VT_0006011 .

obo:VT_0002504 a rdfs:Class ;
  rdfs:label "serotonin activity" ;
  rdfs:comment "The degree of function or response of this biochemical messenger and regulator, found in the CNS, gastrointestinal tract, and produced by platelets; it normally mediates neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0000106 a rdfs:Class ;
  rdfs:label "basisphenoid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the part of the base of the cranium between the basioccipital and the presphenoid, which usually ossifies separately in the embryo or in the young, and becomes a part of the sphenoid in the adult; in many animals it persists as a separate bone between the basioccipital bone and the presphenoid bone." ;
  rdfs:subClassOf obo:VT_0000104 .

obo:VT_0002363 a rdfs:Class ;
  rdfs:label "spleen marginal sinus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the border region surrounding the spleen B cell follicles and the periarteriolar lymphoid sheath (PALS) that separates it from the marginal zone that mediates lymphocyte entry into the white pulp from the blood." ;
  rdfs:subClassOf obo:VT_0002357 .

obo:VT_0000474 a rdfs:Class ;
  rdfs:label "foregut morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cephalic portion of the primitive digestive tube of the embryo." ;
  rdfs:subClassOf obo:VT_0003119 .

obo:VT_0005069 a rdfs:Class ;
  rdfs:label "natural killer cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in non-T, non-B lymphocytes, having a granular morphology and which are important in innate immunity to viruses and other intracellular pathogens; in addition, these cells can kill certain tumor cells." ;
  rdfs:subClassOf obo:VT_0003945 .

obo:VT_0000989 a rdfs:Class ;
  rdfs:label "Ruffini's corpuscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory cells in the subcutaneous tissue of the digits specialized to transduce mechanical stimuli." ;
  rdfs:subClassOf obo:VT_0000973 .

obo:VT_0010744 a rdfs:Class ;
  rdfs:label "urine podocalyxin amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of this sialoglycoprotein." ;
  rdfs:subClassOf obo:VT_0005160 .

obo:VT_0010452 a rdfs:Class ;
  rdfs:label "heterospecific interaction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the behavior of animals towards a member of another species." ;
  rdfs:subClassOf obo:VT_0010445 .

obo:VT_0004917 a rdfs:Class ;
  rdfs:label "T cell selection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process through which T cells that express T cell receptors that are restricted by self MHC protein complexes and tolerant to self antigens are selected for further maturation." ;
  rdfs:subClassOf obo:VT_0002145 .

obo:VT_0010038 a rdfs:Class ;
  rdfs:label "adrenergic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers of the autonomic nervous system that use norepinephrine as their neurotransmitter." ;
  rdfs:subClassOf obo:VT_0010143 .

obo:VT_0001213 a rdfs:Class ;
  rdfs:label "skin cell quantity" ;
  rdfs:comment "The proportion or number of cells in the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0010093 a rdfs:Class ;
  rdfs:label "costal cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nonvascular, flexible hyaline connective tissue that forms the anterior continuation of a rib, the means by which it articulates with the sternum." ;
  rdfs:subClassOf obo:VT_0000163 , obo:VT_0010092 .

obo:VT_0001984 a rdfs:Class ;
  rdfs:label "olfaction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to receive an olfactory stimulus, convert it to a molecular signal, and recognize and characterize the signal; olfaction involves the detection of chemical composition of an organism's ambient medium by chemoreceptors." ;
  rdfs:subClassOf obo:VT_0001983 .

obo:VT_0000001 a rdfs:Class ;
  rdfs:label "vertebrate trait" ;
  rdfs:comment "Any measurable or observable characteristic of a vertebrate organism." .

obo:VT_0010050 a rdfs:Class ;
  rdfs:label "muscle fatty acid C17:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C17H34O2) present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010048 .

obo:VT_0010288 a rdfs:Class ;
  rdfs:label "milk mineral amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of any inorganic element or compound that has importance in body functions." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0011350 .

obo:VT_0000277 a rdfs:Class ;
  rdfs:label "heart shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the organ that pumps blood through the body." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0011263 a rdfs:Class ;
  rdfs:label "vestibular epithelium ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in an epithelium that is part of a vestibular labyrinth. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011309 .

obo:VT_0000046 a rdfs:Class ;
  rdfs:label "sulcus ampullaris morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the transverse groove on the membranous ampulla of each semicircular duct, where the nerve enters the ampullary crest." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0010642 a rdfs:Class ;
  rdfs:label "renal artery integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of either or both of the laterally paired arteries that supply the kidneys." ;
  rdfs:subClassOf obo:VT_0010639 , obo:VT_0010641 .

obo:VT_0005432 a rdfs:Class ;
  rdfs:label "pro-B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the progenitor cells of the B cell lineage, with some lineage specific activity such as early stages of recombination of B cell receptor genes, but are not yet fully committed to the B cell lineage until the expression of PAX5 occurs." ;
  rdfs:subClassOf obo:VT_0002144 .

obo:VT_0005660 a rdfs:Class ;
  rdfs:label "blood epinephrine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this catecholamine hormone that stimulates the adrenergic receptors and that causes systemic vasoconstriction and gastrointestinal relaxation, stimulates the heart, and dilates bronchi and cerebral vessels." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0002001 a rdfs:Class ;
  rdfs:label "visual acuity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the sharpness or clarity of vision." ;
  rdfs:subClassOf obo:VT_0002090 .

obo:VT_0010065 a rdfs:Class ;
  rdfs:label "connective tissue development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the physical or functional supporting tissue of the body, a major constituent of which is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins." ;
  rdfs:subClassOf obo:VT_0100002 .

obo:VT_0010812 a rdfs:Class ;
  rdfs:label "heart left ventricle interstitial norepinephrine amount" ;
  rdfs:comment "The proportion, quantity, or volume of interstitial norepinephrine in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010561 .

obo:VT_0005541 a rdfs:Class ;
  rdfs:label "iris stromal pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the lamellated connective tissue of the iris." ;
  rdfs:subClassOf obo:VT_0005102 , obo:VT_0005208 .

obo:VT_0011210 a rdfs:Class ;
  rdfs:label "colostrum molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the first secretion of the mammary gland before milk production." ;
  rdfs:subClassOf obo:VT_0010256 .

obo:VT_0002177 a rdfs:Class ;
  rdfs:label "outer ear morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the components of the auricles or external acoustic meatus." ;
  rdfs:subClassOf obo:VT_0002102 .

obo:VT_0011013 a rdfs:Class ;
  rdfs:label "muscle sodium amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of the monovalent cation of this alkali metal element." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0010683 a rdfs:Class ;
  rdfs:label "abdominal wall integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the margins that enclose the abdominal cavity; the major part is muscular but also includes skin, subcutaneous fat, fascia and the parietal peritoneum." ;
  rdfs:subClassOf obo:VT_0003257 .

obo:VT_0100001 a rdfs:Class ;
  rdfs:label "tibia size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0000558 .

obo:VT_0011326 a rdfs:Class ;
  rdfs:label "sex gland secreted fluid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of fluids released by any of the organized aggregations of cells that function as secretory or excretory organs and are associated with reproduction." ;
  rdfs:subClassOf obo:VT_0000653 .

obo:VT_0007038 a rdfs:Class ;
  rdfs:label "atrioventricular cushion orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement in relation to each other and the developing heart of the mounds of embryonic connective tissue that bulge into the embryonic atrioventricular canal; these mounds eventually fuse to form the valves between the right and left atrioventricular orifices." ;
  rdfs:subClassOf obo:VT_0007001 .

obo:VT_0005096 a rdfs:Class ;
  rdfs:label "erythroblast quantity" ;
  rdfs:comment "The proportion or number of nucleated red blood cells." ;
  rdfs:subClassOf obo:VT_0010263 .

obo:VT_0004433 a rdfs:Class ;
  rdfs:label "cochlear inner hair cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cochlear IHCs which constitute the true sensory cell type sending impulses via the cochlear (auditory) nerve." ;
  rdfs:subClassOf obo:VT_0004432 .

obo:VT_0010895 a rdfs:Class ;
  rdfs:label "gastrocnemius molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the two-headed large muscle of the posterior portion of the lower hindlimb, the most superficial of the calf muscles." ;
  rdfs:subClassOf obo:VT_0003082 .

obo:VT_0004428 a rdfs:Class ;
  rdfs:label "type I vestibular cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the flask-shaped sensory cells of the maculae and cristae of the vestibular labyrinth of the inner ear, which are normally enclosed in calyx endings of afferent neurons; afferent and efferent nerve fibers of the vestibular nerve synapse with them; from the apical end of each cell a bundle of stereocilia and a kinocilium extend into the otolithic membrane of the maculae or the cupula of the cristae." ;
  rdfs:subClassOf obo:VT_0002623 .

obo:VT_0006007 a rdfs:Class ;
  rdfs:label "basal ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of a group of nuclei associated with the ability to carry out willed movements, including the caudate, putamen, nucleus accumbens, globus pallidus, substantia nigra, and subthalamic nucleus." ;
  rdfs:subClassOf obo:VT_0000783 .

obo:VT_0010939 a rdfs:Class ;
  rdfs:label "erythrocyte molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the erythrocyte,  the fetal or adult cell in the blood that carries oxygen." ;
  rdfs:subClassOf obo:VT_0002447 .

obo:VT_0000937 a rdfs:Class ;
  rdfs:label "motor neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells that innervate an effector (muscle or glandular) tissue and are responsible for transmission of motor impulses." ;
  rdfs:subClassOf obo:VT_0000955 , obo:VT_0002882 .

obo:VT_0001242 a rdfs:Class ;
  rdfs:label "epidermis stratum corneum thickness" ;
  rdfs:comment "The distance between the surfaces of the outer layer of the epidermis, consisting of several layers of flat keratinized non-nucleated cells." ;
  rdfs:subClassOf obo:VT_0001240 .

obo:VT_0010968 a rdfs:Class ;
  rdfs:label "blood L-cysteine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an optically active form of cysteine having L-configuration." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0004248 a rdfs:Class ;
  rdfs:label "epaxial muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscles derived from the region of the myotome closest to the neural tube; includes the intrinsic back muscles." ;
  rdfs:subClassOf obo:VT_0000759 .

obo:VT_0010990 a rdfs:Class ;
  rdfs:label "blood carnosine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a dipeptide that is the N-(beta-alanyl) derivative of L-histidine." ;
  rdfs:subClassOf obo:VT_0010987 .

obo:VT_0005410 a rdfs:Class ;
  rdfs:label "fertilization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process beginning with penetration of the secondary oocyte by the sperm and completed by fusion of the male and female pronuclei." ;
  rdfs:subClassOf obo:VT_0001919 .

obo:VT_0011379 a rdfs:Class ;
  rdfs:label "feces molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the semisolid bodily waste discharged through the anus." ;
  rdfs:subClassOf obo:VT_0011376 , obo:VT_0011378 .

obo:VT_0003133 a rdfs:Class ;
  rdfs:label "early pro-B cell quantity" ;
  rdfs:comment "The proportion or number of cells in the B lymphocyte lineage that undergo D-J rearrangement of the immunoglobulin heavy chain." ;
  rdfs:subClassOf obo:VT_0005019 , obo:VT_0008208 .

obo:VT_0011169 a rdfs:Class ;
  rdfs:label "parathyroid gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in one of the two small, paired endocrine glands, usually found embedded in the connective tissue capsule on the posterior surface of the thyroid gland." ;
  rdfs:subClassOf obo:VT_0000678 .

obo:VT_0010309 a rdfs:Class ;
  rdfs:label "milk fatty acid C7:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a seven-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0004111 a rdfs:Class ;
  rdfs:label "coronary artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the arteries that branch from the aorta to supply blood to the heart." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0007005 a rdfs:Class ;
  rdfs:label "atrioventricular canal formation extent" ;
  rdfs:comment "The degree to which the development of the common canal connecting the primordial atrium and ventricle has reached its end point." ;
  rdfs:subClassOf obo:VT_0006107 .

obo:VT_0005316 a rdfs:Class ;
  rdfs:label "obsolete tactition trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the series of events required for an organism to receive a touch stimulus, convert it to a molecular signal, and recognize and characterize the signal.
Replace with VT:0015099""" .

obo:VT_0004320 a rdfs:Class ;
  rdfs:label "sternum shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the long, flat bone of the chest." ;
  rdfs:subClassOf obo:VT_0000157 .

obo:VT_0006073 a rdfs:Class ;
  rdfs:label "retinal bipolar cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells that transmit signals from the photoreceptors to retinal amacrine and ganglion cells." ;
  rdfs:subClassOf obo:VT_0001325 , obo:VT_0006004 .

obo:VT_0010906 a rdfs:Class ;
  rdfs:label "lung integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of either or both of the spongy organs of respiration contained within the pleural cavity of the thorax." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0001034 a rdfs:Class ;
  rdfs:label "parasympathetic ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the ganglia of the parasympathetic nervous system, including the ciliary, pterygopalatine, submandibular, and otic ganglia in the cranial region and intrinsic (terminal) ganglia associated with target organs in the thorax and abdomen." ;
  rdfs:subClassOf obo:VT_0001033 .

obo:VT_0003252 a rdfs:Class ;
  rdfs:label "bile duct physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the channels that secrete bile from the liver to the gall bladder and intestines." ;
  rdfs:subClassOf obo:VT_0002139 .

obo:VT_0011333 a rdfs:Class ;
  rdfs:label "adipose color" ;
  rdfs:comment "The visually perceived hue of the fat-storing cells/tissue." ;
  rdfs:subClassOf obo:VT_0000003 .

obo:VT_0010071 a rdfs:Class ;
  rdfs:label "lymphatic system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood." ;
  rdfs:subClassOf obo:VT_0010252 , obo:VT_0100016 .

obo:VT_0005227 a rdfs:Class ;
  rdfs:label "vertebral body development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the main portion of the vertebra anterior to the vertebral canal, and distinct from the vertebral arch, during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0005225 .

obo:VT_0010225 a rdfs:Class ;
  rdfs:label "ileum mass" ;
  rdfs:comment "The amount of matter in the portion of the small intestine that extends from the jejunum to the colon." ;
  rdfs:subClassOf obo:VT_0002581 , obo:VT_0010140 .

obo:VT_0001073 a rdfs:Class ;
  rdfs:label "glossopharyngeal nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of sensory and autonomic axons to the parotid gland, carotid body, posterior third of the tongue." ;
  rdfs:subClassOf obo:VT_0001056 .

obo:VT_0004118 a rdfs:Class ;
  rdfs:label "baroreceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory nerve endings in the wall of the atria of the heart, vena cava, aortic arch and carotid sinus that are sensitive to changes in blood pressure." ;
  rdfs:subClassOf obo:VT_0000972 .

obo:VT_0008114 a rdfs:Class ;
  rdfs:label "Kupffer cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the phagocytic macrophages residing on the luminal surface of the hepatic sinusoids." ;
  rdfs:subClassOf obo:VT_0002446 .

obo:VT_0001175 a rdfs:Class ;
  rdfs:label "lung morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of either or both of the spongy organs of respiration contained within the pleural cavity of the thorax." ;
  rdfs:subClassOf obo:VT_0002132 .

obo:VT_0010779 a rdfs:Class ;
  rdfs:label "blood integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the biochemical soundness of the internal equilibrium in the cell containing fluid that circulates through the body, carrying nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues and taking away waste matter and carbon dioxide." ;
  rdfs:subClassOf obo:VT_0015078 .

obo:VT_0010492 a rdfs:Class ;
  rdfs:label "heart left ventricle diameter" ;
  rdfs:comment "The distance across the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0002753 .

obo:VT_0015099 a rdfs:Class ;
  rdfs:label "touch perception trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to receive a touch stimulus, convert it to a molecular signal, and recognize and characterize the signal." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0004237 a rdfs:Class ;
  rdfs:label "pterygoid muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscles descending from the sphenoid bone to the lower jaw including the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle; action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side." ;
  rdfs:subClassOf obo:VT_0004234 .

obo:VT_0007027 a rdfs:Class ;
  rdfs:label "heart right atrium mass" ;
  rdfs:comment "The amount of matter in the right upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000005 .

obo:VT_0010194 a rdfs:Class ;
  rdfs:label "colon mass" ;
  rdfs:comment "The amount of matter in the portion of the large intestine between the cecum and the rectum." ;
  rdfs:subClassOf obo:VT_0002731 , obo:VT_0010220 .

obo:VT_0003082 a rdfs:Class ;
  rdfs:label "gastrocnemius morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the two-headed large muscle of the posterior portion of the lower hindlimb, the most superficial of the calf muscles." ;
  rdfs:subClassOf obo:VT_0010107 .

obo:VT_0000855 a rdfs:Class ;
  rdfs:label "interlobular fissure development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the major fissures of the cerebellum." ;
  rdfs:subClassOf obo:VT_0000854 .

obo:VT_0001130 a rdfs:Class ;
  rdfs:label "ovarian folliculogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of the spherical ovum in the ovary." ;
  rdfs:subClassOf obo:VT_0010043 .

obo:VT_0004043 a rdfs:Class ;
  rdfs:label "pH regulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of the buffer systems of the body in combination with the respiratory and renal systems that control the relative acidity or alkalinity of the body, as measured by the concentration of hydrogen ion." ;
  rdfs:subClassOf obo:VT_0001765 .

obo:VT_0010485 a rdfs:Class ;
  rdfs:label "venous return trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the return of blood to the heart through the great veins and coronary sinus." ;
  rdfs:subClassOf obo:VT_0000182 .

obo:VT_0009625 a rdfs:Class ;
  rdfs:label "abdominal lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the parietal or visceral lymph nodes of the abdomen." ;
  rdfs:subClassOf obo:VT_0002339 .

obo:VT_0001127 a rdfs:Class ;
  rdfs:label "ovary size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0000655 , obo:VT_0001126 .

obo:VT_0005005 a rdfs:Class ;
  rdfs:label "self tolerance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the response to autologous (self) antigens." ;
  rdfs:subClassOf obo:VT_0005000 .

obo:VT_0010430 a rdfs:Class ;
  rdfs:label "retroperitoneal fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue found on the dorsal/posterior side of the serous membrane lining the abdominal cavity and covering most of the viscera." ;
  rdfs:subClassOf obo:VT_0005337 .

obo:VT_0010158 a rdfs:Class ;
  rdfs:label "obsolete interferon physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of any of the cytokines produced by T cells, fibroblasts and other cells in response to a challenge by a foreign agents such as viruses, bacteria, parasites and tumor cells." .

obo:VT_0000128 a rdfs:Class ;
  rdfs:label "molar growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size of the most posterior teeth, located on either side of the jaw and characterized by a large crown and broad chewing surface." ;
  rdfs:subClassOf obo:VT_0000116 .

obo:VT_0008125 a rdfs:Class ;
  rdfs:label "dendritic cell quantity" ;
  rdfs:comment "The proportion or number of cells 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:VT_0005461 .

obo:VT_0011285 a rdfs:Class ;
  rdfs:label "pericardium ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the fibroserous membrane covering the heart and beginning of the great vessels. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010792 .

obo:VT_0002818 a rdfs:Class ;
  rdfs:label "dentin morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root." ;
  rdfs:subClassOf obo:VT_0003930 .

obo:VT_0010714 a rdfs:Class ;
  rdfs:label "milk zinc amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this metallic element that is a cofactor in many proteins." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0006221 a rdfs:Class ;
  rdfs:label "optic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of fibers in the optic nerve." ;
  rdfs:subClassOf obo:VT_0001330 , obo:VT_0010143 .

obo:VT_0002467 a rdfs:Class ;
  rdfs:label "neutrophil phagocytosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of neutrophils (granular leukocytes that have a three- to five-lobed nucleus and cytoplasm that contains inconspicuous granules stainable by neutral dyes) to internalize particulate matter." ;
  rdfs:subClassOf obo:VT_0002419 , obo:VT_0002463 , obo:VT_0010667 .

obo:VT_0007016 a rdfs:Class ;
  rdfs:label "tricuspid valve configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the valve between the right atrium and the right ventricle of the heart." ;
  rdfs:subClassOf obo:VT_0000036 .

obo:VT_0010722 a rdfs:Class ;
  rdfs:label "withdrawal response to addictive substance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the intensity, duration, or type of morphological, physiological, or behavioral response displayed after discontinuation of an addictive substance." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0010790 a rdfs:Class ;
  rdfs:label "adrenal gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the adrenal glands. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010789 .

obo:VT_0001932 a rdfs:Class ;
  rdfs:label "spermiogenesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which immature spermatids become mature sperm." ;
  rdfs:subClassOf obo:VT_0001156 .

obo:VT_0011124 a rdfs:Class ;
  rdfs:label "neck morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the portion of the body that extends from the head to the pectoral girdle, encompassing the cervical vertebral column." ;
  rdfs:subClassOf obo:VT_0011123 .

obo:VT_0010015 a rdfs:Class ;
  rdfs:label "tibia mass" ;
  rdfs:comment "The amount of matter in the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0100001 .

obo:VT_0010664 a rdfs:Class ;
  rdfs:label "semimembranosus mass" ;
  rdfs:comment "The amount of matter in the muscle of the thigh that is the most medial of the three hamstring muscles." ;
  rdfs:subClassOf obo:VT_0010449 , obo:VT_0010675 , obo:VT_1000712 .

obo:VT_0010470 a rdfs:Class ;
  rdfs:label "pancreas insulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in the pancreas of the polypeptide hormone, secreted by beta cells, that promotes glucose utilization, protein synthesis, and the formation and storage of neutral lipids." ;
  rdfs:subClassOf obo:VT_0010469 .

obo:VT_0015049 a rdfs:Class ;
  rdfs:label "tail regeneration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which the tail or portion of the tail is regrown after damage or amputation." ;
  rdfs:subClassOf obo:VT_0015070 .

obo:VT_0010350 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-12,trans-14-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a cis double bond at C-12, and a trans double bond at C-14." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0005460 a rdfs:Class ;
  rdfs:label "leukopoiesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of generating white blood cells (leukocytes) from the pluripotent hematopoietic stem cells of the bone marrow; two significant pathways generate various types of leukocytes: myelopoiesis, in which leukocytes in the blood are derived from myeloid stem cells, and lymphopoiesis, in which leukocytes of the lymphatic system (lymphocytes) are generated from lymphoid stem cells." ;
  rdfs:subClassOf obo:VT_0002123 , obo:VT_0010179 .

obo:VT_0010415 a rdfs:Class ;
  rdfs:label "prolactin secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of the peptide hormone which normally stimulates milk production by the mammary gland." ;
  rdfs:subClassOf obo:VT_0001746 .

obo:VT_0010972 a rdfs:Class ;
  rdfs:label "blood L-glutamine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an optically active form of glutamine (an alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4) having L-configuration." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0004142 a rdfs:Class ;
  rdfs:label "muscle tone" ;
  rdfs:comment "The resting tautness or laxity of a muscle, normally somewhere in the middle of the range between total contraction and total relaxation." ;
  rdfs:subClassOf obo:VT_0002106 .

obo:VT_0002277 a rdfs:Class ;
  rdfs:label "respiratory mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mucous membrane lining the respiratory tract." ;
  rdfs:subClassOf obo:VT_0002132 .

obo:VT_0010440 a rdfs:Class ;
  rdfs:label "bacteria quantity" ;
  rdfs:comment "The proportion or number of unicellular, prokaryotic organisms characterized by peptidoglycan cell walls." ;
  rdfs:subClassOf obo:VT_0010435 .

obo:VT_0015057 a rdfs:Class ;
  rdfs:label "head physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0005382 .

obo:VT_0004032 a rdfs:Class ;
  rdfs:label "interventricular groove morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the indentation dividing the two ventricles, comprised of the sulcus interventricularis anterior and the sulcus interventricularis posterior." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0008180 a rdfs:Class ;
  rdfs:label "marginal zone B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the CD23-negative, CD21-positive B cells of the marginal zone of the spleen expressing a B cell receptor usually reactive to bacterial cell wall components or senescent self components such as oxidized-LDL." ;
  rdfs:subClassOf obo:VT_0002362 , obo:VT_0008171 .

obo:VT_0003117 a rdfs:Class ;
  rdfs:label "tracheal-esophageal septation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to separation of the trachea and esophagus during development." ;
  rdfs:subClassOf obo:VT_0003115 , obo:VT_0003119 .

obo:VT_0010902 a rdfs:Class ;
  rdfs:label "blood eicosanoid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of eicosanoids, signaling molecules derived from C20 fatty acids." ;
  rdfs:subClassOf obo:VT_0003949 , obo:VT_0010787 .

obo:VT_0002295 a rdfs:Class ;
  rdfs:label "pulmonary blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the circulation of blood through the lungs." ;
  rdfs:subClassOf obo:VT_0000255 , obo:VT_0002133 .

obo:VT_0010208 a rdfs:Class ;
  rdfs:label "duodenum mucosa thickness" ;
  rdfs:comment "The distance from between the surfaces of the mucosal layer lining the first division of the small intestine that extends from the pyloris to the junction with the jejunum." ;
  rdfs:subClassOf obo:VT_0003271 , obo:VT_0010221 .

obo:VT_0001299 a rdfs:Class ;
  rdfs:label "eye orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the eyes and their supporting structures in relation to each other or in relation to other craniofacial structures." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0005209 a rdfs:Class ;
  rdfs:label "gastric mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the surface epithelium of the stomach, which is made up of several different cell types." ;
  rdfs:subClassOf obo:VT_0000473 .

obo:VT_0010400 a rdfs:Class ;
  rdfs:label "milk ammonia amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of an alkaline gas formed by decomposition of nitrogen-containing substances such as proteins and amino acids." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0000920 a rdfs:Class ;
  rdfs:label "myelination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which myelin sheaths are formed and maintained around neurons." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010617 a rdfs:Class ;
  rdfs:label "blood pyruvate amount" ;
  rdfs:comment "The proportion, quantity, or volume  in  blood of  pyruvate (the carboxylate anion of pyruvic acid), which is the  end product of glycolysis." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010750 a rdfs:Class ;
  rdfs:label "heart left ventricular blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood pressure in the lower left chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010749 .

obo:VT_0015067 a rdfs:Class ;
  rdfs:label "surface structure development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the organism subdivision which is the collection of anatomical structures on the body surface." ;
  rdfs:subClassOf obo:VT_0015052 .

obo:VT_0100027 a rdfs:Class ;
  rdfs:label "nipple shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the projection near the center of the mammary gland, on the surface of which the lactiferous ducts open." ;
  rdfs:subClassOf obo:VT_0006078 .

obo:VT_0001392 a rdfs:Class ;
  rdfs:label "locomotor behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to move from place to place." ;
  rdfs:subClassOf obo:VT_0003491 .

obo:VT_0011252 a rdfs:Class ;
  rdfs:label "medulla oblongata molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the most caudal region of the brainstem that lies directly rostral to the spinal cord; includes regions responsible for autonomic functions such as digestion, breathing and control of heart rate." ;
  rdfs:subClassOf obo:VT_0000846 .

obo:VT_0000840 a rdfs:Class ;
  rdfs:label "epithalamus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small dorsomedial area of the thalamus including the habenular nuclei and associated fiber bundles, the pineal body, and the epithelial roof of the third ventricle." ;
  rdfs:subClassOf obo:VT_0000830 .

obo:VT_0005085 a rdfs:Class ;
  rdfs:label "gall bladder physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organ that stores and concentrates bile." ;
  rdfs:subClassOf obo:VT_0002139 .

obo:VT_0010711 a rdfs:Class ;
  rdfs:label "milk iron amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this metallic element that is an essential constituent of hemoglobins, cytochromes, and iron-binding proteins." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0003398 a rdfs:Class ;
  rdfs:label "skeletal muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of one or more of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0000759 .

obo:VT_0011355 a rdfs:Class ;
  rdfs:label "blood pepsinogen amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the granular zymogen of the gastric glands that is converted to pepsin under acidic conditions." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0010246 a rdfs:Class ;
  rdfs:label "omasum capacity" ;
  rdfs:comment "The volume of or amount contained in the third forestomach of ruminants which connects the reticulum to the abomasum." ;
  rdfs:subClassOf obo:VT_0010236 , obo:VT_0010245 .

obo:VT_0010061 a rdfs:Class ;
  rdfs:label "brown adipocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells of the thermogenic form of adipose capable of rapid liberation of energy; contain multiple small droplets of triglycerides and a high number of mitochondria." ;
  rdfs:subClassOf obo:VT_0002971 , obo:VT_0004128 .

obo:VT_0005328 a rdfs:Class ;
  rdfs:label "blood creatinine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this product of creatine catabolism." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0003881 a rdfs:Class ;
  rdfs:label "nephron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the filtering unit of the kidney that includes the renal corpuscle, proximal and distal convoluted tubules, loop of Henle, and the collecting tubule." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0008646 a rdfs:Class ;
  rdfs:label "blood interleukin-12b amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the p40 cytokine subunit that is a component of both interleukin-12 and interleukin-23." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0002649 a rdfs:Class ;
  rdfs:label "enamel rod organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the structural units of tooth enamel." ;
  rdfs:subClassOf obo:VT_0002576 .

obo:VT_1000574 a rdfs:Class ;
  rdfs:label "longissimus thoracis muscle area" ;
  rdfs:comment "The two-dimensional extent of the muscle of the back which is the intermediate and largest of the continuations of the Sacrospinalis." ;
  rdfs:subClassOf obo:VT_0010117 .

obo:VT_0010693 a rdfs:Class ;
  rdfs:label "longissimus muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the longest subdivision of the sacrospinalis that extends forward into the transverse processes of the posterior cervical vertebrae." ;
  rdfs:subClassOf obo:VT_0004248 .

obo:VT_0001704 a rdfs:Class ;
  rdfs:label "dorsal-ventral axis patterning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the establishment, maintenance, and elaboration of a pattern along the axis that runs from the front or lower side of an organism to the back or upper side of the body." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0010957 a rdfs:Class ;
  rdfs:label "verapamil metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving verapamil,  a calcium channel blocker used (particularly as the hydrochloride salt) in the treatment of hypertension, angina pectoris and cardiac arrhythmia, and as a preventive medication for migraine." ;
  rdfs:subClassOf obo:VT_0010638 .

obo:VT_0002568 a rdfs:Class ;
  rdfs:label "obsolete behavioral response to addictive substance trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to a behavioral reaction to an addictive substance." .

obo:VT_0011221 a rdfs:Class ;
  rdfs:label "blood glutamic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of glutamic acid (2-aminopentanedioic acid), a non-essential alpha-amino used in the biosynthesis of proteins; its anion form, glutamate, is the major excitatory neurotransmitter in the mammalian central nervous system and also serves as the metabolic precursor of gamma-aminobutyric acid (GABA), an inhibitory neurotransmitter." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0000550 a rdfs:Class ;
  rdfs:label "forelimb morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the anterior/superior jointed appendages used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0002109 .

obo:VT_0100012 a rdfs:Class ;
  rdfs:label "kidney blood vessel physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the network of vessels that convey blood in the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0002136 .

obo:VT_0010653 a rdfs:Class ;
  rdfs:label "muscle iron amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this metallic element that normally occurs in the heme of hemoglobin, myoglobin, transferrin, ferritin, and iron-containing porphyrins; it is an essential component of enzymes such as catalase, peroxidase, and various cytochromes." ;
  rdfs:subClassOf obo:VT_0001770 , obo:VT_0010652 .

obo:VT_0010067 a rdfs:Class ;
  rdfs:label "convoluted tubule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the convoluted segments of nephron made up of the proximal tubule, leading from the glomerular capsule to the descending limb of Henle's loop, and the distal tubule, leading from the ascending limb of Henle's loop to a collecting tubule." ;
  rdfs:subClassOf obo:VT_0000521 , obo:VT_0002703 .

obo:VT_0002456 a rdfs:Class ;
  rdfs:label "Langerhans cell antigen presentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of phagocytic cells of the epidermis to display antigen for recognition by T lymphocytes." ;
  rdfs:subClassOf obo:VT_0001835 , obo:VT_0005362 .

obo:VT_0005269 a rdfs:Class ;
  rdfs:label "occipital bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone at the lower, posterior part of the skull." ;
  rdfs:subClassOf obo:VT_0000076 , obo:VT_0005273 .

obo:VT_0000968 a rdfs:Class ;
  rdfs:label "obsolete sensory neuron innervation pattern trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to sensory termini or to the spinal cord." .

obo:VT_0001440 a rdfs:Class ;
  rdfs:label "grooming behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism with regard to the standard behavior of cleaning and/or keeping outward appearance tidy (self, mate or offspring)." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0008233 a rdfs:Class ;
  rdfs:label "pro-B cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the progenitor cells of the B cell lineage, with some lineage specific activity such as early stages of recombination of B cell receptor genes, but are not yet fully committed to the B cell lineage until the expression of PAX5 occurs." ;
  rdfs:subClassOf obo:VT_0002144 .

obo:VT_0010253 a rdfs:Class ;
  rdfs:label "hemolymphoid system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the blood forming organs and tissues and the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood." ;
  rdfs:subClassOf obo:VT_0010248 .

obo:VT_2000004 a rdfs:Class ;
  rdfs:label "coronary blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood flow in the heart." ;
  rdfs:subClassOf obo:VT_0000255 .

obo:VT_0000424 a rdfs:Class ;
  rdfs:label "hair growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in length of the fine, keratinized filamentous growths arising from the epidermis of mammals." ;
  rdfs:subClassOf obo:VT_4000007 .

obo:VT_0003245 a rdfs:Class ;
  rdfs:label "GABA neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that utilize gamma-aminobutyric acid as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0011312 a rdfs:Class ;
  rdfs:label "fetus quantity" ;
  rdfs:comment "The proportion or number of unborn or unhatched vertebrates especially after attaining the basic structural plan of their kind." ;
  rdfs:subClassOf obo:VT_0010937 , obo:VT_0011311 .

obo:VT_1000684 a rdfs:Class ;
  rdfs:label "total heart ventricle mass" ;
  rdfs:comment "The total amount of matter in both of the lower chambers of the heart." ;
  rdfs:subClassOf obo:VT_0010298 .

obo:VT_0015072 a rdfs:Class ;
  rdfs:label "fin morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the appendages primarily used to maintain position, move, steer or stop in a liquid medium." ;
  rdfs:subClassOf obo:VT_0015071 .

obo:VT_0010080 a rdfs:Class ;
  rdfs:label "skeletal muscle physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in any of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0002106 .

obo:VT_0010570 a rdfs:Class ;
  rdfs:label "lumbar vertebra area" ;
  rdfs:comment "The two-dimensional extent (surface or cross-section) of the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0010518 .

obo:VT_0003685 a rdfs:Class ;
  rdfs:label "cardiac ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the parasympathetic ganglia of the cardiac plexus between the arch of the aorta and the bifurcation of the pulmonary artery." ;
  rdfs:subClassOf obo:VT_0001034 .

obo:VT_0001304 a rdfs:Class ;
  rdfs:label "lens clarity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree of transparency of the structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0001303 .

obo:VT_0011236 a rdfs:Class ;
  rdfs:label "left common carotid artery ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the leftmost of the two common carotid arteries, originating from the aortic arch in the thorax. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011235 .

obo:VT_0010130 a rdfs:Class ;
  rdfs:label "DN1 thymic pro-T cell quantity" ;
  rdfs:comment "The proportion or number of pro-T cells that have the cell surface marker phenotype CD4-negative, CD8-negative, CD44-positive, and CD25-negative." ;
  rdfs:subClassOf obo:VT_0000715 , obo:VT_0005089 .

obo:VT_0003515 a rdfs:Class ;
  rdfs:label "labia majora morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the folds of skin which form the outer lips (labia majora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003511 .

obo:VT_1000739 a rdfs:Class ;
  rdfs:label "rump morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the hindquarters." ;
  rdfs:subClassOf obo:VT_0015060 .

obo:VT_0008349 a rdfs:Class ;
  rdfs:label "gamma-delta intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a gamma-delta T cell present in columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0008343 , obo:VT_0008894 .

obo:VT_0015101 a rdfs:Class ;
  rdfs:label "proprioception system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events by which an organism senses the position, location, orientation, and movement of the body and its parts, or to the morphology of the structures involved in any of these events." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0011065 a rdfs:Class ;
  rdfs:label "trigeminal ganglion molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the group of sensory neuron cell bodies associated with the trigeminal nerve (fifth cranial nerve)." ;
  rdfs:subClassOf obo:VT_0001092 .

obo:VT_0004794 a rdfs:Class ;
  rdfs:label "blood anti-nuclear antigen antibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies to nuclear antigens." ;
  rdfs:subClassOf obo:VT_0003725 .

obo:VT_0011344 a rdfs:Class ;
  rdfs:label "blood alpha-2 globulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the proteins in the alpha-1 (faster) subgroup of the serum proteins that have the most rapid migration during electrophoresis." ;
  rdfs:subClassOf obo:VT_0010628 .

obo:VT_0002697 a rdfs:Class ;
  rdfs:label "eye size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organ of vision." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0010621 a rdfs:Class ;
  rdfs:label "urine taurine amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of an aminosulfonic acid synthesized from l-cysteine." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0000603 a rdfs:Class ;
  rdfs:label "liver pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0000598 .

obo:VT_0011199 a rdfs:Class ;
  rdfs:label "muscle anserine amount" ;
  rdfs:comment "The proportion, quantity, or volume of a dipeptide comprising beta-alanine and 3-methyl-L-histidine units detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0000384 a rdfs:Class ;
  rdfs:label "hair follicle organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the tubular invaginations of the epidermis from which the hair shaft develops." ;
  rdfs:subClassOf obo:VT_0002076 .

obo:VT_0002835 a rdfs:Class ;
  rdfs:label "cranial suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fibrous joints between the bones of the head." ;
  rdfs:subClassOf obo:VT_0010612 .

obo:VT_0005593 a rdfs:Class ;
  rdfs:label "blood vessel smooth muscle contractility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the nonstriated, involuntary muscle tissue of the structures that convey blood throughout the body to shorten or develop increased tension." ;
  rdfs:subClassOf obo:VT_0000740 , obo:VT_0005595 .

obo:VT_0002786 a rdfs:Class ;
  rdfs:label "Leydig cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the testosterone-secreting cells in the interstitial area, between the seminiferous tubules, in the testis." ;
  rdfs:subClassOf obo:VT_0001146 .

obo:VT_0010264 a rdfs:Class ;
  rdfs:label "colostrum amount" ;
  rdfs:comment "The proportion, quantity, or volume of the thin, yellow, milky fluid secreted by the mammary gland, before or after parturition, preceding the production of milk." ;
  rdfs:subClassOf obo:VT_0010256 .

obo:VT_0001712 a rdfs:Class ;
  rdfs:label "placenta development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organ of metabolic exchange between the fetus and mother." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_1000223 a rdfs:Class ;
  rdfs:label "pectoralis muscle mass" ;
  rdfs:comment "The amount of matter in either or both of the muscles that make up the upper and fore part of the chest that adduct and rotate the arm and lift the ribs." ;
  rdfs:subClassOf obo:VT_0010116 , obo:VT_1000712 .

obo:VT_0003512 a rdfs:Class ;
  rdfs:label "labia size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the folds of skin which form the inner lips (labia minora) and outer lips (labia majora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003511 .

obo:VT_0000655 a rdfs:Class ;
  rdfs:label "sex gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the organized aggregations of cells that function as secretory or excretory organs and are associated with reproduction." ;
  rdfs:subClassOf obo:VT_0000653 , obo:VT_0002160 .

obo:VT_0003385 a rdfs:Class ;
  rdfs:label "body wall morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the external portion of an animal body comprised of ectoderm and mesoderm layers that encloses the body cavity." ;
  rdfs:subClassOf obo:VT_0004134 .

obo:VT_0005305 a rdfs:Class ;
  rdfs:label "coagulating gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the anterior lobe of the prostate." ;
  rdfs:subClassOf obo:VT_0001163 .

obo:VT_0000012 a rdfs:Class ;
  rdfs:label "heart left atrium size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the left upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000020 , obo:VT_0003140 .

obo:VT_0010530 a rdfs:Class ;
  rdfs:label "cued fear conditioning behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism pertaining to the ability to learn and remember an association between an aversive experience (the unconditioned stimulus (US), usually a shock) and a neutral stimulus (the conditioned stimulus (CS), usually an auditory cue or light flash)." ;
  rdfs:subClassOf obo:VT_0010527 , obo:VT_0010715 .

obo:VT_0006210 a rdfs:Class ;
  rdfs:label "orbit size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bony cavity that contains the eyeball or of any of the parts of the bones which form the cavity." ;
  rdfs:subClassOf obo:VT_0005246 .

obo:VT_0000476 a rdfs:Class ;
  rdfs:label "cochlear nerve fiber response trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter the electrophysiological recordings from the elongated processes of auditory neurons over time or as a result of internal or external influences." ;
  rdfs:subClassOf obo:VT_0000365 , obo:VT_0000483 , obo:VT_0003477 .

obo:VT_0002262 a rdfs:Class ;
  rdfs:label "nasal mucosa goblet cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells lining the nasal epithelium that produce and secrete mucins." ;
  rdfs:subClassOf obo:VT_0002238 .

obo:VT_0000203 a rdfs:Class ;
  rdfs:label "blood aspartate transaminase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which catalyzes the reversible transfer of an amine group from l-glutamic acid to oxaloacetic acid, forming alpha-ketoglutaric acid and l-aspartic acid; aids in diagnosis of viral hepatitis and myocardial infarction." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0011032 a rdfs:Class ;
  rdfs:label "pancreas ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010469 .

obo:VT_0003887 a rdfs:Class ;
  rdfs:label "hepatocyte apoptosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which liver cells undergo programmed cell death." ;
  rdfs:subClassOf obo:VT_0000609 .

obo:VT_0002706 a rdfs:Class ;
  rdfs:label "kidney size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of one or both of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0002403 a rdfs:Class ;
  rdfs:label "pre-B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells in the B lymphocyte lineage that have undergone VDJ rearrangement of the immunoglobulin heavy chain and are in the process of V-J rearrangement of the light chain: these cells express mu heavy chain on the cell surface." ;
  rdfs:subClassOf obo:VT_0005022 .

obo:VT_0011072 a rdfs:Class ;
  rdfs:label "urinary bladder molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the distensible musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0000538 .

obo:VT_0008613 a rdfs:Class ;
  rdfs:label "blood interleukin-17 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a proinflammatory cytokine produced primarily by T-cells or their precursors." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0000223 a rdfs:Class ;
  rdfs:label "monocyte quantity" ;
  rdfs:comment "The proportion or number of large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and released into the blood." ;
  rdfs:subClassOf obo:VT_0000217 , obo:VT_0002620 .

obo:VT_0000131 a rdfs:Class ;
  rdfs:label "long bone epiphysis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the head of a long bone which, during development and growth, is separated from the shaft by the epiphyseal plate." ;
  rdfs:subClassOf obo:VT_0003723 .

obo:VT_1000276 a rdfs:Class ;
  rdfs:label "humerus area" ;
  rdfs:comment "The two-dimensional extent of the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0100000 .

obo:VT_0001001 a rdfs:Class ;
  rdfs:label "chemoreceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the cells specialized to detect chemical substances and relay that information centrally in the nervous system." ;
  rdfs:subClassOf obo:VT_0000965 .

obo:VT_0010231 a rdfs:Class ;
  rdfs:label "colon muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the muscle surrounding the portion of the large intestine between the cecum and the rectum." ;
  rdfs:subClassOf obo:VT_0002731 .

obo:VT_0003044 a rdfs:Class ;
  rdfs:label "basement membrane development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the extracellular supportive tissue closely adjacent to the basal surface of the epithelium of muscle cells, fat cells and Schwann cells, which is comprised of type IV collagen, laminin, and sulfated proteoglycans and other components." ;
  rdfs:subClassOf obo:VT_0010065 .

obo:VT_0010519 a rdfs:Class ;
  rdfs:label "liver triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in the bile-secreting exocrine gland of this molecule, glycerol esterified at each of its three hydroxyl groups by a fatty acid; triglyceride is an important molecule for storage of fatty acids in adipose tissue." ;
  rdfs:subClassOf obo:VT_0000187 .

obo:VT_0011214 a rdfs:Class ;
  rdfs:label "CD3-negative T cell quantity" ;
  rdfs:comment "The proportion or number of T lymphocytes that are negative for the CD3 T-cell co-receptor complex." ;
  rdfs:subClassOf obo:VT_0006387 .

obo:VT_0011362 a rdfs:Class ;
  rdfs:label "trunk depth" ;
  rdfs:comment "The dorsal-ventral dimension of the organism subdivision which is the part of the body posterior to the cervical region (or head, when cervical region not present) and anterior to the caudal region." ;
  rdfs:subClassOf obo:VT_0011360 .

obo:VT_0001688 a rdfs:Class ;
  rdfs:label "somite development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of any of the paired, metamerically arranged cell masses formed in the embryonic paraxial mesoderm." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0010671 a rdfs:Class ;
  rdfs:label "tarsometatarsus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the long bone in the lower leg of birds, formed by fusion of tarsal and metatarsal structures." ;
  rdfs:subClassOf obo:VT_0010105 .

obo:VT_0010277 a rdfs:Class ;
  rdfs:label "milk leptin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the peptide hormone secreted by white adipocytes and believed to regulate food intake and energy balance." ;
  rdfs:subClassOf obo:VT_0010275 .

obo:VT_1000741 a rdfs:Class ;
  rdfs:label "rump angle" ;
  rdfs:comment "The slope of the topline of the rump, between the cranial and caudal protrusions of the pelvic bone, viewed from the side." ;
  rdfs:subClassOf obo:VT_1000739 .

obo:VT_0002950 a rdfs:Class ;
  rdfs:label "neural crest cell migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement from point to point of the transient and migratory group of cells that emerge from the dorsal region of the neural tube and migrate to many peripheral locations, ultimately differentiating to form various tissues of the adult." ;
  rdfs:subClassOf obo:VT_0002949 .

obo:VT_0001691 a rdfs:Class ;
  rdfs:label "somite shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of any of the paired, metamerically arranged cell masses formed in the embryonic paraxial mesoderm." ;
  rdfs:subClassOf obo:VT_0010122 .

obo:VT_0004166 a rdfs:Class ;
  rdfs:label "limbic system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of a collection of structures in the brain involved in emotion, motivation, and emotional aspects of memory; these structures act together to control the endocrine system and the autonomic nervous system." ;
  rdfs:subClassOf obo:VT_0000783 .

obo:VT_0004134 a rdfs:Class ;
  rdfs:label "thorax morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the part of the body between the head and the abdomen or any of its component parts." ;
  rdfs:subClassOf obo:VT_0011360 , obo:VT_0015059 .

obo:VT_0001004 a rdfs:Class ;
  rdfs:label "retinal photoreceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the receptors sensitive to light." ;
  rdfs:subClassOf obo:VT_0000965 , obo:VT_0003728 .

obo:VT_0100034 a rdfs:Class ;
  rdfs:label "mammary gland mass" ;
  rdfs:comment "The amount of matter in the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0010002 .

obo:VT_0003952 a rdfs:Class ;
  rdfs:label "copper amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of this metallic element that has formula Cu, and normally occurs as a cofactor for a number of proteins including amine oxidases and chaperone proteins." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0003951 .

obo:VT_0003892 a rdfs:Class ;
  rdfs:label "gastric gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the branched tubular glands in the mucosa of the fundus and body of the stomach that contain parietal cells that secrete hydrochloric acid and zymogenic cells that produce pepsin." ;
  rdfs:subClassOf obo:VT_0005209 .

obo:VT_0011225 a rdfs:Class ;
  rdfs:label "hoof integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the tip of a toe of an ungulate mammal, strengthened by a thick horny (keratin) covering. The hoof consists of a hard or rubbery sole, and a hard wall formed by a thick nail rolled around the tip of the toe." ;
  rdfs:subClassOf obo:VT_0011223 , obo:VT_0011224 .

obo:VT_0015050 a rdfs:Class ;
  rdfs:label "paravertebral ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the groups of postsynaptic neurons located at intervals along the sympatheic trunk, including the superior cervical, middle cervical and stellate (cervicothoracic) ganglia as well as the thoracic, lumbar and sacral ganglia." ;
  rdfs:subClassOf obo:VT_0001008 .

obo:VT_0005285 a rdfs:Class ;
  rdfs:label "adipose unsaturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of organic, monobasic acids derived from hydrocarbons present in fat-storing cells/tissue; the carbon chain has one or more double or triple carbon-carbon bonds." ;
  rdfs:subClassOf obo:VT_0005280 .

obo:VT_0010417 a rdfs:Class ;
  rdfs:label "leukocyte proliferation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which any of the white blood cells (basophils, eosinophils, neutrophils, lymphocytes, dendritic cells, macrophages, mast cells, or monocytes) undergo expansion by cell division." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0008750 a rdfs:Class ;
  rdfs:label "interferon amount" ;
  rdfs:comment "The proportion, quantity, or volume of proteins secreted by vertebrate cells in response to a wide variety of inducers; they confer resistance against many different viruses, inhibit proliferation of normal and malignant cells, impede multiplication of intracellular parasites, enhance macrophage and granulocyte phagocytosis, augment natural killer cell activity, and show several other immunomodulatory functions." ;
  rdfs:subClassOf obo:VT_0008713 .

obo:VT_0000052 a rdfs:Class ;
  rdfs:label "ear unfolding initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of opening and spreading out of the outer ear." ;
  rdfs:subClassOf obo:VT_0015029 .

obo:VT_0006279 a rdfs:Class ;
  rdfs:label "limb development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the limbs, the projecting, paired, jointed appendages of the body used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0015069 .

obo:VT_0010134 a rdfs:Class ;
  rdfs:label "DN3 thymocyte quantity" ;
  rdfs:comment "The proportion or number of thymocytes that have the cell surface marker phenotype CD4-negative, CD8-negative, CD44-negative, and CD25-positive and expressing the T cell receptor beta-chain in complex with the pre-T cell receptor alpha chain." ;
  rdfs:subClassOf obo:VT_0000715 , obo:VT_0005089 .

obo:VT_0010393 a rdfs:Class ;
  rdfs:label "milk CD36 molecule amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of CD36, an integral membrane protein." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0010805 a rdfs:Class ;
  rdfs:label "uterus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the uterus. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010804 .

obo:VT_0000485 a rdfs:Class ;
  rdfs:label "otoacoustic response trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter the acoustic energy produced by the cochlea in the presence or absence of sound stimulation." ;
  rdfs:subClassOf obo:VT_0002104 .

obo:VT_0004103 a rdfs:Class ;
  rdfs:label "ventral striatum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the regions of the nucleus accumbens and some nuclei of the olfactory tubercle that lie ventral to the anterior commissure." ;
  rdfs:subClassOf obo:VT_0004077 .

obo:VT_0000633 a rdfs:Class ;
  rdfs:label "pituitary gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the compound gland suspended from the base of the hypothalamus, which secretes somatotropins, prolactin, TSH (thyroid-stimulating hormone), gonadotropins, adrenal corticotropin, and other related peptides." ;
  rdfs:subClassOf obo:VT_0000631 , obo:VT_0000830 .

obo:VT_0001176 a rdfs:Class ;
  rdfs:label "lung development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the either or both of the spongy organs of respiration contained within the pleural cavity of the thorax during its/their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003115 .

obo:VT_0010646 a rdfs:Class ;
  rdfs:label "biceps femoris muscle mass" ;
  rdfs:comment "The amount of matter in a muscle of the posterior thigh. It has two parts, one of which (the long head) forms part of the hamstrings muscle group." ;
  rdfs:subClassOf obo:VT_0010449 .

obo:VT_0010564 a rdfs:Class ;
  rdfs:label "heart right ventricle deoxyribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of deoxyribonucleic acid (DNA), the molecule composed of the sugar deoxyribose, phosphate groups and any combination of the bases adenine, guanine, cytosine, and/or thymine, in the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010951 , obo:VT_0011005 .

obo:VT_0010597 a rdfs:Class ;
  rdfs:label "blood murinoglobulin 1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of Mug1, a serine-type endopeptidase inhibitor." ;
  rdfs:subClassOf obo:VT_0010035 .

obo:VT_0004466 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell length" ;
  rdfs:comment "The distance from point to point along the longest axis of the cochlear outer hair cells." ;
  rdfs:subClassOf obo:VT_0004399 .

obo:VT_0015061 a rdfs:Class ;
  rdfs:label "thorax development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the portion of the body between the head and the abdomen during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0015059 .

obo:VT_0008215 a rdfs:Class ;
  rdfs:label "immature B cell quantity" ;
  rdfs:comment "The proportion or number of the cells of the B lymphocyte lineage that have undergone VDJ rearrangement of the heavy chain and V-J rearrangement of the light chain; these cells express IgM on the cell surface but have not yet been selected for self-reactivity." ;
  rdfs:subClassOf obo:VT_0002458 , obo:VT_0005022 .

obo:VT_0003933 a rdfs:Class ;
  rdfs:label "cementum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bonelike rigid connective tissue covering the root of a tooth." ;
  rdfs:subClassOf obo:VT_0003930 .

obo:VT_1000525 a rdfs:Class ;
  rdfs:label "adipose fatty acid cis-9-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a monounsaturated, omega-9 fatty acid (C18H34O2), present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005285 .

obo:VT_0010730 a rdfs:Class ;
  rdfs:label "locomotor coordination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of an animal to maintain skillful and effective interaction of movements while engaging in behavioral locomotor activity." ;
  rdfs:subClassOf obo:VT_0001392 .

obo:VT_0004337 a rdfs:Class ;
  rdfs:label "clavicle cell quantity" ;
  rdfs:comment "The proportion or number of cells in one or both of the doubly curved long bones that form part of the shoulder girdle and articulate with the sternum and the scapula." ;
  rdfs:subClassOf obo:VT_0005298 .

obo:VT_0004268 a rdfs:Class ;
  rdfs:label "optic stalk morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the narrow, proximal portion of the optic vesicle which connects the embryonic eye and forebrain." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0003993 a rdfs:Class ;
  rdfs:label "ventral spinal root morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the anterior bundle of nerves emerging from the spinal cord to join with the posterior/dorsal nerve bundle at each spinal cord segment to form one of the 31 paired peripheral nerves." ;
  rdfs:subClassOf obo:VT_0001077 .

obo:VT_0001141 a rdfs:Class ;
  rdfs:label "vaginal epithelium thickness" ;
  rdfs:comment "The distance between the surfaces of the vaginal epithelial layer." ;
  rdfs:subClassOf obo:VT_0001140 .

obo:VT_0002824 a rdfs:Class ;
  rdfs:label "chorioallantoic fusion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of the membrane that forms the fetal portion of the placenta in most mammals; derived from the fusion of the chorion and the allantois." ;
  rdfs:subClassOf obo:VT_0001712 .

obo:VT_0008240 a rdfs:Class ;
  rdfs:label "spleen marginal zone macrophage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells present in the splenic marginal zone that are involved in the recognition and clearance of material, such as pathogen-derived material, from the splenic circulation." ;
  rdfs:subClassOf obo:VT_0002362 , obo:VT_0002446 .

obo:VT_0000792 a rdfs:Class ;
  rdfs:label "cortical marginal zone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the developing superficial cortical layer located just under the pia matter." ;
  rdfs:subClassOf obo:VT_0000934 .

obo:VT_0010736 a rdfs:Class ;
  rdfs:label "wound healing trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of repair of trauma to any tissues of the body, especially that caused by physical means." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0010826 a rdfs:Class ;
  rdfs:label "tongue length" ;
  rdfs:comment "The distance from point to point along the longest axis of the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor." ;
  rdfs:subClassOf obo:VT_0010825 .

obo:VT_0005406 a rdfs:Class ;
  rdfs:label "heart size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organ that pumps blood through the body or any of its component structures." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0001084 a rdfs:Class ;
  rdfs:label "petrosal ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lower group of sensory neuron cell bodies associated with the glossopharyngeal nerve." ;
  rdfs:subClassOf obo:VT_0001096 .

obo:VT_0003150 a rdfs:Class ;
  rdfs:label "tectorial membrane attachment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the connection of the overlaying membrane of the cochlear duct to the cochlear epithelium or spiral limbus." ;
  rdfs:subClassOf obo:VT_0003149 .

obo:VT_0010631 a rdfs:Class ;
  rdfs:label "amino acid metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving the organic compounds, which, when polymerized, form proteins." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0001445 a rdfs:Class ;
  rdfs:label "vestibular hair cell stereociliary bundle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mechanosensitive hair bundles which are composed of thick long microvilli (stereocilia) and are located at the apical end of vestibular hair cells of the utricle and saccule." ;
  rdfs:subClassOf obo:VT_0002623 .

obo:VT_0004293 a rdfs:Class ;
  rdfs:label "type I spiral ligament fibrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the type I spiral ligament fibrocytes which occupy the region beneath the stria vascularis." ;
  rdfs:subClassOf obo:VT_0004292 .

obo:VT_0011177 a rdfs:Class ;
  rdfs:label "mesenteric artery ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in any of the arteries which arise from the abdominal aorta and distribute to most of the intestines. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010786 , obo:VT_0011176 .

obo:VT_0010169 a rdfs:Class ;
  rdfs:label "obsolete C2 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C2." .

obo:VT_0009858 a rdfs:Class ;
  rdfs:label "cellular extravasation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the migration of leukocytes from the blood vessels into the surrounding tissue." ;
  rdfs:subClassOf obo:VT_0003156 .

obo:VT_0010770 a rdfs:Class ;
  rdfs:label "kidney paraoxonase 1 activity" ;
  rdfs:comment "The degree of function or response in the kidney of the arylesterase that hydrolyzes paroxon, an organophosphorus anticholinesterase compound, to produce p-nitrophenol." ;
  rdfs:subClassOf obo:VT_0010558 , obo:VT_0010769 .

obo:VT_0005447 a rdfs:Class ;
  rdfs:label "synaptic norepinephrine release trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the secretion across synapses of this widespread central and autonomic neurotransmitter, the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus." ;
  rdfs:subClassOf obo:VT_0005445 .

obo:VT_0003519 a rdfs:Class ;
  rdfs:label "labia majora shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the folds of skin which form the outer lips (labia majora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003515 .

obo:VT_0002623 a rdfs:Class ;
  rdfs:label "vestibular hair cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the sensory epithelium of the maculae and cristae of the membranous labyrinth of the internal ear; afferent and efferent nerve fibers of the vestibular nerve end synaptically on them; from the apical end of each cell a bundle of stereocilia and a kinocilium extend into the statoconial membrane of the maculae and the cupula of the cristae." ;
  rdfs:subClassOf obo:VT_0000034 , obo:VT_0000045 , obo:VT_0015096 .

obo:VT_0001614 a rdfs:Class ;
  rdfs:label "blood vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the tubular channels through which the blood circulates." ;
  rdfs:subClassOf obo:VT_0002127 .

obo:VT_0002445 a rdfs:Class ;
  rdfs:label "mononuclear leukocyte differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which relatively unspecialized cells acquire the specialized features of leukocytes with a single non-segmented nucleus in the mature form." ;
  rdfs:subClassOf obo:VT_0005460 .

obo:VT_0010451 a rdfs:Class ;
  rdfs:label "stress-related behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic of actions or reactions related to how the body reacts to a stressor (a stimulus that causes stress), real or imagined." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0000799 a rdfs:Class ;
  rdfs:label "precentral gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the frontal lobe that contains the cell bodies of the primary motor pathways." ;
  rdfs:subClassOf obo:VT_0000798 .

obo:VT_0003725 a rdfs:Class ;
  rdfs:label "blood autoantibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies to self-antigens." ;
  rdfs:subClassOf obo:VT_0002460 .

obo:VT_0003308 a rdfs:Class ;
  rdfs:label "cochlea sensory epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the epithelial cell layer containing the sensory hair cells and their associated sensory nerve terminals." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0002068 a rdfs:Class ;
  rdfs:label "parental behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the behavior of animals towards offspring." ;
  rdfs:subClassOf obo:VT_0010445 .

obo:VT_0008252 a rdfs:Class ;
  rdfs:label "multinucleated phagocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a phagocyte formed by the fusion of mononuclear phagocytes." ;
  rdfs:subClassOf obo:VT_0008251 .

obo:VT_0008471 a rdfs:Class ;
  rdfs:label "spleen primary B follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nodules of small undifferentiated B lymphocytes and follicular dendritic cells located in the spleen white pulp." ;
  rdfs:subClassOf obo:VT_0008470 .

obo:VT_0000117 a rdfs:Class ;
  rdfs:label "tooth primordium development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cells that give rise to the teeth." ;
  rdfs:subClassOf obo:VT_0000116 .

obo:VT_0004326 a rdfs:Class ;
  rdfs:label "vestibular hair cell quantity" ;
  rdfs:comment "The proportion or numbers of the cells in the sensory epithelium of the maculae and cristae of the membranous labyrinth of the internal ear." ;
  rdfs:subClassOf obo:VT_0002623 .

obo:VT_0001907 a rdfs:Class ;
  rdfs:label "cerebellum physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the portion of the brain in the back of the head between the cerebrum and the pons, that controls balance for walking and standing, modulates the force and range of movement and is involved in the learning of motor skills." ;
  rdfs:subClassOf obo:VT_0015058 .

obo:VT_0010747 a rdfs:Class ;
  rdfs:label "heart left ventricle interstitial collagen amount" ;
  rdfs:comment "The proportion, quantity, or volume of collagen types I and III in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010561 .

obo:VT_0010198 a rdfs:Class ;
  rdfs:label "duodenum mass" ;
  rdfs:comment "The amount of matter in the first division of the small intestine that extends from the pyloris to the junction with the jejunum." ;
  rdfs:subClassOf obo:VT_0003271 , obo:VT_0010140 .

obo:VT_0002251 a rdfs:Class ;
  rdfs:label "nasopharynx morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the section of the pharynx that lies above the soft palate." ;
  rdfs:subClassOf obo:VT_0002234 .

obo:VT_0008653 a rdfs:Class ;
  rdfs:label "interleukin-1 alpha secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of an interleukin-1 subtype that occurs as a membrane-bound pro-protein form that is cleaved by proteases to form a secreted mature form; both membrane-bound and secreted forms of interleukin-1alpha are biologically active." ;
  rdfs:subClassOf obo:VT_0008650 .

obo:VT_0010700 a rdfs:Class ;
  rdfs:label "blood VLDL triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the triglyceride in lipoprotein complexes formed to transport endogenously derived triglycerides to extra-hepatic tissues." ;
  rdfs:subClassOf obo:VT_0002644 .

obo:VT_0000185 a rdfs:Class ;
  rdfs:label "obsolete blood flow velocity" ;
  rdfs:comment "OBSOLETE. The speed at which blood moves through the vessels." .

obo:VT_0010707 a rdfs:Class ;
  rdfs:label "kidney malondialdehyde amount" ;
  rdfs:comment "The proportion, quantity, or volume in kidney of the dialdehyde of malonic acid." ;
  rdfs:subClassOf obo:VT_0010558 .

obo:VT_0003731 a rdfs:Class ;
  rdfs:label "retinal outer nuclear layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the retinal layer that contains the nuclei and cell bodies of rods and cones." ;
  rdfs:subClassOf obo:VT_0006069 .

obo:VT_0004069 a rdfs:Class ;
  rdfs:label "muscle spindle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory organs in muscle that are involved in the stretch reflex." ;
  rdfs:subClassOf obo:VT_0000990 .

obo:VT_0010269 a rdfs:Class ;
  rdfs:label "colostrum hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of chemical substances produced by an organ, cells of an organ, or scattered cells, having a specific regulatory effect on the activity of an organ or organs." ;
  rdfs:subClassOf obo:VT_0011210 .

obo:VT_0010518 a rdfs:Class ;
  rdfs:label "lumbar vertebra size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0010494 , obo:VT_0011341 .

obo:VT_0002660 a rdfs:Class ;
  rdfs:label "caput epididymis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the head of the epididymis." ;
  rdfs:subClassOf obo:VT_0002631 .

obo:VT_0010162 a rdfs:Class ;
  rdfs:label "obsolete interleukin-10 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of this factor that is a co-regulator of mast cell growth and produced by T and B cells." .

obo:VT_1000120 a rdfs:Class ;
  rdfs:label "intercostal muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the respiratory muscles that arise from the lower border of one rib and insert into the upper border of the adjoining rib." ;
  rdfs:subClassOf obo:VT_0010114 .

obo:VT_0015079 a rdfs:Class ;
  rdfs:label "sterol homeostasis trait" ;
  rdfs:comment "Any measurable characteristic related to any process involved in the maintenance of an internal equilibrium of sterol (a steroid with one OH group) within an organism or cell." ;
  rdfs:subClassOf obo:VT_0002118 .

obo:VT_0000170 a rdfs:Class ;
  rdfs:label "blood vessel physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the tubular channels through which the blood circulates." ;
  rdfs:subClassOf obo:VT_0001544 .

obo:VT_0015048 a rdfs:Class ;
  rdfs:label "limb regeneration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which a limb or portion of a limb is regrown after damage or amputation." ;
  rdfs:subClassOf obo:VT_0015070 .

obo:VT_0000080 a rdfs:Class ;
  rdfs:label "exoccipital bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone or region on the lateral sides of the great foramen of the skull, which often forms a part of the occipital in the adult, but is usually distinct in the young." ;
  rdfs:subClassOf obo:VT_0005269 .

obo:VT_0015078 a rdfs:Class ;
  rdfs:label "blood homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the internal equilibrium in the cell-containing fluid that circulates through the body, carrying nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues and taking away waste matter and carbon dioxide." ;
  rdfs:subClassOf obo:VT_0001764 .

obo:VT_0010924 a rdfs:Class ;
  rdfs:label "blood amount" ;
  rdfs:comment "The proportion, quantity, or volume in the cardiovascular system of the cell-containing fluid that circulates through the body, carrying nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues and taking away waste matter and carbon dioxide." ;
  rdfs:subClassOf obo:VT_0002127 .

obo:VT_0004365 a rdfs:Class ;
  rdfs:label "strial basal cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, or pattern of the polarized cells which are juxtaposed to fibrocytes in the underlying spiral ligament." ;
  rdfs:subClassOf obo:VT_0000048 .

obo:VT_0010496 a rdfs:Class ;
  rdfs:label "pituitary gland mass" ;
  rdfs:comment "The amount of matter in the compound gland suspended from the base of the hypothalamus, which secretes somatotropins, prolactin, TSH (thyroid-stimulating hormone), gonadotropins, adrenal corticotropin, and other related peptides." ;
  rdfs:subClassOf obo:VT_0005361 .

obo:VT_0010845 a rdfs:Class ;
  rdfs:label "cervical spinal cord homovanillic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in a spinal cord segment adjacent to a cervical region of HVA, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010577 , obo:VT_0010835 .

obo:VT_0008598 a rdfs:Class ;
  rdfs:label "blood interleukin-2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a soluble substance elaborated by antigen- or mitogen-stimulated T-cells which induces DNA synthesis in naive lymphocytes." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0007001 a rdfs:Class ;
  rdfs:label "atrioventricular cushion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mounds of embryonic connective tissue that bulge into the embryonic atrioventricular canal; these mounds eventually fuse to form the valves between the right and left atrioventricular orifices." ;
  rdfs:subClassOf obo:VT_0000267 .

obo:VT_0010082 a rdfs:Class ;
  rdfs:label "zygomatic process of maxilla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the rough projection of the upper bony framework of the mouth, which articulates with the zygomatic bone." ;
  rdfs:subClassOf obo:VT_0000455 .

obo:VT_0010725 a rdfs:Class ;
  rdfs:label "startle reflex trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the threshold or reflex response to variable stimuli, often auditory; usually measured by amplitude of whole body flinch." ;
  rdfs:subClassOf obo:VT_0001961 .

obo:VT_0011208 a rdfs:Class ;
  rdfs:label "muscle taurine amount" ;
  rdfs:comment "The proportion, quantity, or volume of an amino acid derived from methionine and cysteine metabolism detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0002655 a rdfs:Class ;
  rdfs:label "keratinocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells of the epidermis that produce keratin in the process of differentiating into the dead and fully keratinized cells of the stratum corneum." ;
  rdfs:subClassOf obo:VT_0001216 .

obo:VT_0100005 a rdfs:Class ;
  rdfs:label "body size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the overall physical magnitude of an organism." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0002644 a rdfs:Class ;
  rdfs:label "blood triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of triacylglycerols (glycerol esterified at each of its three hydroxyl groups by a fatty acid)." ;
  rdfs:subClassOf obo:VT_0000187 , obo:VT_0003949 .

obo:VT_0010606 a rdfs:Class ;
  rdfs:label "urine vanillylmandelic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in the  urine of the major urinary metabolite of adrenal and sympathetic catecholamines such as epinephrine and norepinephrine." ;
  rdfs:subClassOf obo:VT_0010605 .

obo:VT_0004946 a rdfs:Class ;
  rdfs:label "regulatory T cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the specialized subpopulation of T cells that act to suppress activation of the immune system and thus maintain immune system homeostasis and prevent pathological self-reactivity; these may include T cells that express the CD8 transmembrane glycoprotein (CD8-positive T cells), those that express CD4 and CD25 (CD4-positive, CD25-positive regulatory T cells or Tregs) and other T cell types that have suppressor function." ;
  rdfs:subClassOf obo:VT_0002444 .

obo:VT_0010502 a rdfs:Class ;
  rdfs:label "urine catecholamine amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of biologically active amines derived from tyrosine, including metanephrine, dopamine, epinephrine, and norepinephrine." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0010221 a rdfs:Class ;
  rdfs:label "duodenum mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mucous lining of the first division of the small intestine that extends from the pyloris to the junction with the jejunum; this consists of epithelium, lamina propria, and a layer of smooth muscle cells." ;
  rdfs:subClassOf obo:VT_0000511 .

obo:VT_0010733 a rdfs:Class ;
  rdfs:label "trigeminal nerve integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the chief sensory nerve of the face and motor nerve of the muscles of mastication." ;
  rdfs:subClassOf obo:VT_0001065 .

obo:VT_0015000 a rdfs:Class ;
  rdfs:label "epididymal fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0010411 a rdfs:Class ;
  rdfs:label "secretion by placenta trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances from the organ of metabolic interchange between the fetus and mother." ;
  rdfs:subClassOf obo:VT_0010409 .

obo:VT_0010860 a rdfs:Class ;
  rdfs:label "cervical spinal cord serotonin amount" ;
  rdfs:comment "The proportion, quantity or volume in a spinal cord segment adjacent to a cervical region of a monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0010577 , obo:VT_0010838 .

obo:VT_0003696 a rdfs:Class ;
  rdfs:label "zona pellucida morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the thick solid transparent outer membrane that surrounds the developing ovum and embryo prior to implantation." ;
  rdfs:subClassOf obo:VT_0001131 .

obo:VT_0000266 a rdfs:Class ;
  rdfs:label "heart morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ that pumps blood through the body." ;
  rdfs:subClassOf obo:VT_0002127 .

obo:VT_0000572 a rdfs:Class ;
  rdfs:label "autopod morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the distal elements of the developing limb of vertebrates that will give rise to the pedal or prehensile appendages (e.g. hand, foot, paw, phalanges and/or digits)." ;
  rdfs:subClassOf obo:VT_0006279 .

obo:VT_0005099 a rdfs:Class ;
  rdfs:label "ciliary body morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thickened portion of the vascular tunic, which lies between the choroid and the iris." ;
  rdfs:subClassOf obo:VT_0005194 .

obo:VT_0011046 a rdfs:Class ;
  rdfs:label "sciatic nerve ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the  nerve which originates in the lumbar and sacral spinal cord and supplies motor and sensory innervation to the lower extremity. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011045 .

obo:VT_0007012 a rdfs:Class ;
  rdfs:label "mitral valve configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the valve between the left atrium and the left ventricle of the heart." ;
  rdfs:subClassOf obo:VT_0000033 .

obo:VT_0000767 a rdfs:Class ;
  rdfs:label "smooth muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the unstriated, involuntary muscle tissue of the internal organs, blood vessels, and other body structures not under willful control." ;
  rdfs:subClassOf obo:VT_0002108 .

obo:VT_0003486 a rdfs:Class ;
  rdfs:label "channel response intensity" ;
  rdfs:comment "The degree of de- or hyperpolarization or number of action potentials in response to a specific stimulus recorded from ion channels." ;
  rdfs:subClassOf obo:VT_0003484 .

obo:VT_0002380 a rdfs:Class ;
  rdfs:label "tonsil morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of either of the two small almond-shaped masses of lymph tissue found on either side of the oropharynx." ;
  rdfs:subClassOf obo:VT_0002379 .

obo:VT_0004399 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory cells of the organ of Corti which are in synaptic contact with sensory as well as efferent fibers of the auditory nerve; there are three rows of columnar outer hair cells largely surrounded by cortilymph and supporting phalangeal cells; the apical end of each cell is anchored to the cuticular plate and about 100 stereocilia arranged in a V-shaped pattern extend from the cell's surface through the cuticular plate into the tectorial membrane." ;
  rdfs:subClassOf obo:VT_0002622 .

obo:VT_0004939 a rdfs:Class ;
  rdfs:label "B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of lymphocytes of B lineage with the phenotype CD19-positive and capable of B cell-mediated immunity." ;
  rdfs:subClassOf obo:VT_0002619 .

obo:VT_1000519 a rdfs:Class ;
  rdfs:label "adipose fatty acid C20:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an unsaturated fatty acid (C20H36O2), with two carbon-carbon double bonds, present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005285 .

obo:VT_0010035 a rdfs:Class ;
  rdfs:label "acute phase protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of the series of proteins found in the blood shortly after infection, which participate in the early phases of host defense against infection." ;
  rdfs:subClassOf obo:VT_0010034 .

obo:VT_0004257 a rdfs:Class ;
  rdfs:label "placenta mass" ;
  rdfs:comment "The amount of matter in the organ of metabolic interchange between fetus and mother." ;
  rdfs:subClassOf obo:VT_0004258 .

obo:VT_0010741 a rdfs:Class ;
  rdfs:label "skin sodium amount" ;
  rdfs:comment "The proportion, quantity, or volume in the skin of the monovalent cation of this alkali metal element, the most plentiful extracellular ion in the body." ;
  rdfs:subClassOf obo:VT_0010738 .

obo:VT_0001928 a rdfs:Class ;
  rdfs:label "ovulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the release of an ovum from a rupturing Graafian follicle, normally regulated by a surge in luteinizing hormone." ;
  rdfs:subClassOf obo:VT_0001927 .

obo:VT_0010078 a rdfs:Class ;
  rdfs:label "sphenoparietal suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the union between the lower border of the parietal bone with the upper edge of the greater wing of the sphenoid." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0001565 a rdfs:Class ;
  rdfs:label "blood phosphate amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this salt or ester of phosphoric acid." ;
  rdfs:subClassOf obo:VT_0000068 , obo:VT_0010998 .

obo:VT_0008760 a rdfs:Class ;
  rdfs:label "immunoglobulin heavy chain V(D)J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which V, D, and J gene segments of the immunoglobulin heavy chain are recombined." ;
  rdfs:subClassOf obo:VT_0008755 .

obo:VT_0001541 a rdfs:Class ;
  rdfs:label "osteoclast physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in large, multinucleated cells that function in the absorption and removal of osseous tissue." ;
  rdfs:subClassOf obo:VT_0000070 .

obo:VT_0003792 a rdfs:Class ;
  rdfs:label "major salivary gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the three largest glands of the oral cavity that secrete most of the saliva, including the parotid, submandibular, and sublingual glands." ;
  rdfs:subClassOf obo:VT_0000613 .

obo:VT_0004229 a rdfs:Class ;
  rdfs:label "embryonic erythropoiesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the processes in the development of primarily large, nucleated erythroblasts occurring in blood islands in the yolk sac, generally occurs from E7-E11 in the mouse and through 10 weeks in humans." ;
  rdfs:subClassOf obo:VT_0003396 .

obo:VT_0004308 a rdfs:Class ;
  rdfs:label "basilar membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the membrane extending from the bony spiral membrane to the basilar crest of the cochlea; it forms the greater part of the floor of the cochlear duct separating the latter from the scala tympani, and it supports the organ of Corti." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_0004066 a rdfs:Class ;
  rdfs:label "primitive node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the regional thickening of cells at the rostral tip of the vertebrate primitive streak through which gastrulating cells migrate anteriorally to form tissues in the future head and neck; this region organizes the formation of the three embryonic layers and establishes the longitudinal axis and the polarity of the embryo." ;
  rdfs:subClassOf obo:VT_0002231 .

obo:VT_0000701 a rdfs:Class ;
  rdfs:label "lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the oval or bean shaped bodies located along the lymphatic system that consist of densely packed lymphocytes, lymph fluid and connective tissue; the sites where acquired immune responses are launched." ;
  rdfs:subClassOf obo:VT_0002221 , obo:VT_0002339 .

obo:VT_0010541 a rdfs:Class ;
  rdfs:label "orosomucoid 1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of this subgroup of the alpha-1-globulin fraction of blood." ;
  rdfs:subClassOf obo:VT_0010035 .

obo:VT_0010151 a rdfs:Class ;
  rdfs:label "Purkinje cell nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers that connect to the neurons located at the interface of the molecular and internal granule layers of the cerebellar cortex." ;
  rdfs:subClassOf obo:VT_0000877 , obo:VT_0010143 .

obo:VT_0011035 a rdfs:Class ;
  rdfs:label "pituitary gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the compound gland suspended from the base of the hypothalamus, which secretes somatotropins, prolactin, TSH (thyroid-stimulating hormone), gonadotropins, adrenal corticotropin, and other related peptides. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011034 , obo:VT_0011259 .

obo:VT_0011271 a rdfs:Class ;
  rdfs:label "oocyte ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the female germ cell that has entered meiosis. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011270 .

obo:VT_0000851 a rdfs:Class ;
  rdfs:label "cerebellum cell quantity" ;
  rdfs:comment "The proportion or number of cells in the part of the metencephalon that lies in the posterior cranial fossa dorsal to the pons and medulla that is concerned with the coordination of movement and learning of motor skills." ;
  rdfs:subClassOf obo:VT_0000849 .

obo:VT_0002273 a rdfs:Class ;
  rdfs:label "respiratory alveolar epithelial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells lining the alveoli." ;
  rdfs:subClassOf obo:VT_0002270 .

obo:VT_0011232 a rdfs:Class ;
  rdfs:label "primary motor cortex ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the part of the cerebral cortex that receives projections from the motor thalamus and which projects to motor neurons in the brainstem and spinal cord; the primary motor cortex, or M1, is located on the precentral gyrus and on the anterior paracentral lobule on the medial surface of the brain. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011231 , obo:VT_0011255 .

obo:VT_0004265 a rdfs:Class ;
  rdfs:label "placental transport trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the conveyance of metabolic products and nutrients across the placenta." ;
  rdfs:subClassOf obo:VT_0010409 .

obo:VT_2000009 a rdfs:Class ;
  rdfs:label "heart pumping trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the heart to pump blood through its various chambers and out into the circulatory system." ;
  rdfs:subClassOf obo:VT_0010301 .

obo:VT_0003606 a rdfs:Class ;
  rdfs:label "nephron physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the filtering unit of the kidney that includes the renal corpuscle, proximal and distal convoluted tubules, loop of Henle, and the collecting tubule." ;
  rdfs:subClassOf obo:VT_0002136 .

obo:VT_0000340 a rdfs:Class ;
  rdfs:label "perilymph physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the fluid contained within the osseous labyrinth, surrounding and protecting the membranous labyrinth." ;
  rdfs:subClassOf obo:VT_0003878 .

obo:VT_0003508 a rdfs:Class ;
  rdfs:label "blood dihydrotestosterone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this potent androgenic metabolite of testosterone." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0001051 a rdfs:Class ;
  rdfs:label "somatic motor system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the neural tissue involved in the transmission of motor signals." ;
  rdfs:subClassOf obo:VT_0002752 .

obo:VT_0010946 a rdfs:Class ;
  rdfs:label "aorta molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in any part of the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0000272 , obo:VT_0015090 .

obo:VT_0000288 a rdfs:Class ;
  rdfs:label "pericardium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fibroserous membrane covering the heart and beginning of the great vessels." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0010441 a rdfs:Class ;
  rdfs:label "parasite quantity" ;
  rdfs:comment "The proportion or number of organisms that live on or in another and draw their nourishment therefrom." ;
  rdfs:subClassOf obo:VT_0010437 .

obo:VT_0002634 a rdfs:Class ;
  rdfs:label "sensorimotor gating trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which inhibitory neural pathways filter multiple stimuli and allow attention to be focused on one stimulus; usually measured by pre-pulse inhibition (PPI)." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010873 a rdfs:Class ;
  rdfs:label "brain homovanillic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the brain of HVA, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010875 .

obo:VT_0003859 a rdfs:Class ;
  rdfs:label "Harderian gland physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the sebaceous gland located behind the eyeball in the orbit that secretes lipids, porphyrins, and indoles such as melatonin." ;
  rdfs:subClassOf obo:VT_0002991 .

obo:VT_0010481 a rdfs:Class ;
  rdfs:label "blood immunoglobulin M amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this immunoglobulin formed during the early part of the immune response that is the most efficient antibody in stimulating complement activity." ;
  rdfs:subClassOf obo:VT_0002460 .

obo:VT_0100023 a rdfs:Class ;
  rdfs:label "mammary alveoli epithelial cell quantity" ;
  rdfs:comment "The proportion or number of epithelial cells surrounding the mammary alveoli." ;
  rdfs:subClassOf obo:VT_0001884 .

obo:VT_0004348 a rdfs:Class ;
  rdfs:label "femur length" ;
  rdfs:comment "The distance from point to point along the longest axis of the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_1000369 .

obo:VT_0004145 a rdfs:Class ;
  rdfs:label "muscle electrophysiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree of function or response of the musculature as it relates to electrical phenomena." ;
  rdfs:subClassOf obo:VT_0002106 .

obo:VT_0002092 a rdfs:Class ;
  rdfs:label "eye morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ of vision and its supporting structures." ;
  rdfs:subClassOf obo:VT_0003743 , obo:VT_0015066 .

obo:VT_0003237 a rdfs:Class ;
  rdfs:label "lens epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the one or more of the layers of epithelial cells in the transparent structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0001303 .

obo:VT_0006274 a rdfs:Class ;
  rdfs:label "urine sodium amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of the monovalent cation of sodium, an alkali metal element." ;
  rdfs:subClassOf obo:VT_0015086 .

obo:VT_0005205 a rdfs:Class ;
  rdfs:label "eye anterior chamber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the space in the eye, filled with aqueous humor, and bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and part of the crystalline lens." ;
  rdfs:subClassOf obo:VT_0005193 .

obo:VT_0011147 a rdfs:Class ;
  rdfs:label "interleukin-19 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of interleukin-19 a monocytic cytokine which is a member of the IL-10 cytokine subfamily and involved in the inflammatory response." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0010917 a rdfs:Class ;
  rdfs:label "bile acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of any member of a group of hydroxy-5beta-cholanic acids occurring in bile, where they are present as the sodium salts of their amides with glycine or taurine." ;
  rdfs:subClassOf obo:VT_0010581 .

obo:VT_0008482 a rdfs:Class ;
  rdfs:label "spleen germinal center quantity" ;
  rdfs:comment "The proportion or number of spleen secondary B follicles where rapid B-cell proliferation, somatic hypermutation, and selection for antigen binding occur." ;
  rdfs:subClassOf obo:VT_0002359 .

obo:VT_0008559 a rdfs:Class ;
  rdfs:label "interferon-gamma secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of the major interferon produced by mitogenically or antigenically stimulated lymphocytes that is involved in immunoregulation." ;
  rdfs:subClassOf obo:VT_0008555 .

obo:VT_0010143 a rdfs:Class ;
  rdfs:label "nerve fiber quantity" ;
  rdfs:comment "The proportion or number of elongated processes of neurons." ;
  rdfs:subClassOf obo:VT_0002184 .

obo:VT_0000881 a rdfs:Class ;
  rdfs:label "cochlear hair bundle ankle links morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the long, single-stranded filaments that form a dense web or mesh around the base of cochlear hair bundles just above the region in which the stereocilia begin to taper down." ;
  rdfs:subClassOf obo:VT_0000838 .

obo:VT_0005296 a rdfs:Class ;
  rdfs:label "humerus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0010104 .

obo:VT_0011359 a rdfs:Class ;
  rdfs:label "trunk trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the organism subdivision which is the part of the body posterior to the cervical region (or head, when cervical region not present) and anterior to the caudal region. Includes the sacrum when present." ;
  rdfs:subClassOf obo:VT_0100003 .

obo:VT_0010406 a rdfs:Class ;
  rdfs:label "sperm flagellum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the whiplike locomotory organelle of the spermatozoa." ;
  rdfs:subClassOf obo:VT_0010405 .

obo:VT_0000229 a rdfs:Class ;
  rdfs:label "megakaryocyte development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of these very large bone marrow cells which release mature platelets." ;
  rdfs:subClassOf obo:VT_0000228 , obo:VT_0010180 .

obo:VT_0010011 a rdfs:Class ;
  rdfs:label "femur mineral mass" ;
  rdfs:comment "The amount of matter in the minerals (inorganic elements or compounds that have importance in body functions) in the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds." ;
  rdfs:subClassOf obo:VT_0005007 , obo:VT_0010009 .

obo:VT_0001412 a rdfs:Class ;
  rdfs:label "scratching trait" ;
  rdfs:comment "Any measurable or observable characteristic related to scraping of the skin, usually with the nails." ;
  rdfs:subClassOf obo:VT_0001440 .

obo:VT_0002414 a rdfs:Class ;
  rdfs:label "myeloblast morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells found in the bone marrow that give rise to the granulocyte line of blood cells." ;
  rdfs:subClassOf obo:VT_0002398 .

obo:VT_0002116 a rdfs:Class ;
  rdfs:label "craniofacial bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bones of the face and/or cranium." ;
  rdfs:subClassOf obo:VT_0000428 , obo:VT_0002114 .

obo:VT_0001023 a rdfs:Class ;
  rdfs:label "L5 ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of nerve cell bodies located on the dorsal spinal roots within the vertebral column at the level of the fifth lumbar vertebra." ;
  rdfs:subClassOf obo:VT_0000964 , obo:VT_0001022 .

obo:VT_0003646 a rdfs:Class ;
  rdfs:label "muscle fatigue trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of muscle exhaustion following contraction." ;
  rdfs:subClassOf obo:VT_0002106 .

obo:VT_0008345 a rdfs:Class ;
  rdfs:label "gamma-delta T cell quantity" ;
  rdfs:comment "The proportion or number of immature or mature T cells expressing a gamma-delta T cell receptor complex." ;
  rdfs:subClassOf obo:VT_0006387 , obo:VT_0008343 .

obo:VT_0000496 a rdfs:Class ;
  rdfs:label "small intestine morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the upper portion of the digestive tract, between the stomach and the large intestine." ;
  rdfs:subClassOf obo:VT_0000477 .

obo:VT_0010575 a rdfs:Class ;
  rdfs:label "uterus integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0001120 .

obo:VT_0008356 a rdfs:Class ;
  rdfs:label "gamma-delta T cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of T cells expressing a gamma-delta T cell receptor complex, and/or accumulation of gamma-delta T cell precursors." ;
  rdfs:subClassOf obo:VT_0002145 .

obo:VT_0011136 a rdfs:Class ;
  rdfs:label "blood resistin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this cysteine-rich peptide hormone, derived from adipose tissue, that is implicated in the modulation of insulin activity, energy, glucose, and lipid homeostasis." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0003729 a rdfs:Class ;
  rdfs:label "photoreceptor outer segment morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the photoreceptor layer which contains stacks of membranous discs that are rich in the visual pigment rhodopsin." ;
  rdfs:subClassOf obo:VT_0001004 .

obo:VT_0010296 a rdfs:Class ;
  rdfs:label "sympathetic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers to sympathetic termini." ;
  rdfs:subClassOf obo:VT_0010143 .

obo:VT_0004079 a rdfs:Class ;
  rdfs:label "putamen morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lens-shaped basal ganglion involved with control of voluntary movement in the brain." ;
  rdfs:subClassOf obo:VT_0004102 .

obo:VT_0002132 a rdfs:Class ;
  rdfs:label "respiratory system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the system responsible for the exchange of oxygen and carbon dioxide with the environment." ;
  rdfs:subClassOf obo:VT_0005388 .

obo:VT_0000829 a rdfs:Class ;
  rdfs:label "fourth ventricle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the 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:VT_0000828 .

obo:VT_0010884 a rdfs:Class ;
  rdfs:label "blood flavanone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a flavan bearing an oxo substituent at position 4." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0011113 a rdfs:Class ;
  rdfs:label "sinoatrial node ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the small mass of modified cardiac muscle fibers located at the junction of the superior vena cava and the right atrium that is the source of contraction impulses for the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011112 .

obo:VT_0010834 a rdfs:Class ;
  rdfs:label "tissue dihydroxyphenylacetic acid (DOPAC) amount" ;
  rdfs:comment "The proportion, quantity or volume in a tissue of the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0002756 a rdfs:Class ;
  rdfs:label "cerebral cortex pyramidal cell quantity" ;
  rdfs:comment "The proportion or number of projection neurons in the pyramidal cell layer of the cerebral cortex." ;
  rdfs:subClassOf obo:VT_0003241 , obo:VT_0005442 , obo:VT_0015026 .

obo:VT_0004186 a rdfs:Class ;
  rdfs:label "area postrema morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small, elevated area in the lateral wall of the inferior recess of the fourth ventricle, involved in the control of cardiorespiratory physiology." ;
  rdfs:subClassOf obo:VT_0000828 .

obo:VT_0011061 a rdfs:Class ;
  rdfs:label "lymphocyte molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the cells involved in adaptive immune reactions of the body, including B cells, T cells and natural killer cells." ;
  rdfs:subClassOf obo:VT_0002619 , obo:VT_0011241 .

obo:VT_0002124 a rdfs:Class ;
  rdfs:label "obsolete red blood cell trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the shape, structure, color, pattern or maintenance of erythrocytes or oxygen-transporting material in the blood.
consider: VT:0002447""" .

obo:VT_0003241 a rdfs:Class ;
  rdfs:label "cerebral cortex neuron quantity" ;
  rdfs:comment "The proportion or number of neurons in the cerebral cortex region of the brain." ;
  rdfs:subClassOf obo:VT_0000788 .

obo:VT_0000035 a rdfs:Class ;
  rdfs:label "membranous labyrinth morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the complex arrangement of communicating canaliculi and sacs suspended within the cavity of the bony labyrinth of the inner ear." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0005216 a rdfs:Class ;
  rdfs:label "pancreatic alpha cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cells of the pancreas that secrete glucagon." ;
  rdfs:subClassOf obo:VT_0005215 .

obo:VT_0100016 a rdfs:Class ;
  rdfs:label "circulatory system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic pertaining to the shape, structure, color, or pattern of the system that moves extracellular fluids to and from tissues." ;
  rdfs:subClassOf obo:VT_1000784 .

obo:VT_1000578 a rdfs:Class ;
  rdfs:label "longissimus thoracis length" ;
  rdfs:comment "The distance from point to point along the longest axis of the muscle of the back which is the intermediate and largest of the continuations of the Sacrospinalis." ;
  rdfs:subClassOf obo:VT_0010117 .

obo:VT_0000870 a rdfs:Class ;
  rdfs:label "cerebellum vermis lobule VIII morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of part of the inferior vermis of the cerebellum (vermis lobule VIII)." ;
  rdfs:subClassOf obo:VT_0015085 .

obo:VT_0010935 a rdfs:Class ;
  rdfs:label "urine pH trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the relative acidity or alkalinity of the urine, as measured by the concentration of hydrogen ion." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0011144 a rdfs:Class ;
  rdfs:label "lymphatic vessel ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the lymphatic vessels, vessels that contain or convey lymph, that originate as an interfibrillar or intercellular cleft or space in a tissue or organ. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011143 .

obo:VT_0010781 a rdfs:Class ;
  rdfs:label "cerebrovascular system integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the network of vessels that convey blood in the brain." ;
  rdfs:subClassOf obo:VT_0010780 .

obo:VT_0011184 a rdfs:Class ;
  rdfs:label "choroid plexus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the network formed by blood vessels and the tela choroidea which secretes CSF into the ventricular spaces." ;
  rdfs:subClassOf obo:VT_0000820 .

obo:VT_0000030 a rdfs:Class ;
  rdfs:label "tympanic ring morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bony ring at the ear canal to which the tympanic membrane is attached." ;
  rdfs:subClassOf obo:VT_0000049 .

obo:VT_0010299 a rdfs:Class ;
  rdfs:label "angiogenesis" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of blood vessel formation and remodeling, following initial formation of the vascular network." ;
  rdfs:subClassOf obo:VT_0000122 .

obo:VT_0000997 a rdfs:Class ;
  rdfs:label "joint capsule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sac that encloses the articulating ends of bones participating in a synovial joint; formed by an outer fibrous layer and an inner synovial membrane." ;
  rdfs:subClassOf obo:VT_0002932 .

obo:VT_0011128 a rdfs:Class ;
  rdfs:label "aqueous humor molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the clear, watery fluid that fills the anterior and possibly posterior chambers of the eye." ;
  rdfs:subClassOf obo:VT_0005206 .

obo:VT_0007087 a rdfs:Class ;
  rdfs:label "heart left ventricle posterior wall thickness" ;
  rdfs:comment "The distance between the surfaces of the wall closest to the back of the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0007075 .

obo:VT_0008196 a rdfs:Class ;
  rdfs:label "follicular dendritic cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a cell with extensive dendritic processes found in the B cell areas (primary follicles and germinal centers) of lymphoid tissue; follicular dendritic cells have Fc receptors and C3b receptors, and hold antigen in the form of immune complexes on their surfaces for long periods and can present antigen to B cells during an immune response." ;
  rdfs:subClassOf obo:VT_0000716 .

obo:VT_0011207 a rdfs:Class ;
  rdfs:label "muscle collagen amount" ;
  rdfs:comment "The proportion, quantity, or volume of the major protein of the white fibers of connective tissue, cartilage, and bone detected in the contractile tissue that effects movement." ;
  rdfs:subClassOf obo:VT_1000433 .

obo:VT_0005253 a rdfs:Class ;
  rdfs:label "eye physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organ of vision and its supporting structures." ;
  rdfs:subClassOf obo:VT_0005391 , obo:VT_0015027 .

obo:VT_0011021 a rdfs:Class ;
  rdfs:label "eye molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the organs of vision and their supporting structures." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0003562 a rdfs:Class ;
  rdfs:label "pancreatic beta cell physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the insulin-producing cells of the islets of Langerhans in the pancreas." ;
  rdfs:subClassOf obo:VT_0010501 .

obo:VT_0006214 a rdfs:Class ;
  rdfs:label "orbit symmetry" ;
  rdfs:comment "Correspondence in size, shape, and relative position of the bony cavities that contain the eyeball, or of any of the parts of the bones which form the cavity, on opposite sides of a dividing line or plane or about a center or axis." ;
  rdfs:subClassOf obo:VT_0005246 .

obo:VT_0001300 a rdfs:Class ;
  rdfs:label "obsolete distance between the eyes" ;
  rdfs:comment """OBSOLETE. The distance between the eyes.
consider: VT:0001299""" .

obo:VT_0005108 a rdfs:Class ;
  rdfs:label "ulna morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the medial and larger of the two bones of the forearm or lower forelimb; fused with the radius in some species." ;
  rdfs:subClassOf obo:VT_0010104 .

obo:VT_0010586 a rdfs:Class ;
  rdfs:label "brain cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the brain (one of the two components of the central nervous system and the center of thought and emotion) of these most abundant steroids in animal tissues." ;
  rdfs:subClassOf obo:VT_0003947 , obo:VT_0010583 .

obo:VT_0003093 a rdfs:Class ;
  rdfs:label "anterior stroma morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the anterior segment of the lamellated connective tissue layer of the cornea." ;
  rdfs:subClassOf obo:VT_0005300 .

obo:VT_0004951 a rdfs:Class ;
  rdfs:label "spleen mass" ;
  rdfs:comment "The amount of matter in the organ that functions to filter blood and to store red corpuscles and platelets." ;
  rdfs:subClassOf obo:VT_0002224 .

obo:VT_0010816 a rdfs:Class ;
  rdfs:label "urine aldosterone amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of aldosterone, a steroid hormone produced by the adrenal cortex that regulates reabsorption of water and ions in the kidney." ;
  rdfs:subClassOf obo:VT_0010815 .

obo:VT_0010801 a rdfs:Class ;
  rdfs:label "testis ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the testis. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010800 .

obo:VT_0004006 a rdfs:Class ;
  rdfs:label "jejunal smooth muscle contractility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the unstriated, involuntary muscle tissue of the portion of the small intestine that extends from the duodenum to the ileum to shorten or to develop increased tension." ;
  rdfs:subClassOf obo:VT_0004005 .

obo:VT_0010097 a rdfs:Class ;
  rdfs:label "osteocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a mature osteoblast that has become embedded in the bone matrix in small cavities called lacunae and has cytoplasmic processes that extend into canaliculi and make contact with the processes of other osteocytes." ;
  rdfs:subClassOf obo:VT_0010094 .

obo:VT_0000778 a rdfs:Class ;
  rdfs:label "nervous system tract morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the bundles of myelinated nerve fibers following a defined path through the brain and/or spinal cord." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0011299 a rdfs:Class ;
  rdfs:label "kidney glomerulus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the capillary loops at the beginning of each nephric tubule in the kidney." ;
  rdfs:subClassOf obo:VT_0005325 .

obo:VT_0003635 a rdfs:Class ;
  rdfs:label "synaptic transmission trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the communication from a neuron to a target across a synapse." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0006092 a rdfs:Class ;
  rdfs:label "olfactory neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the neurons in the olfactory epithelium that are activated by specific odorants." ;
  rdfs:subClassOf obo:VT_0001001 .

obo:VT_0011155 a rdfs:Class ;
  rdfs:label "tibia ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011068 , obo:VT_0011154 .

obo:VT_0010219 a rdfs:Class ;
  rdfs:label "large intestine length" ;
  rdfs:comment "The distance from point to point along the longest axis of the distal portion of the digestive tube that extends from the ileocecal valve to the anus." ;
  rdfs:subClassOf obo:VT_0000489 , obo:VT_0010195 .

obo:VT_0011195 a rdfs:Class ;
  rdfs:label "milk immunoglobulin G amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the major antibody for antitoxins, viruses, and bacteria; also activates complement." ;
  rdfs:subClassOf obo:VT_0011193 .

obo:VT_0010581 a rdfs:Class ;
  rdfs:label "sterol amount" ;
  rdfs:comment "The proportion, quantity, or volume of a steroid with one OH group." ;
  rdfs:subClassOf obo:VT_0015079 .

obo:VT_0011301 a rdfs:Class ;
  rdfs:label "hippocampus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the deep lying structure of the cerebrum involved with memory storage and spatial navigation." ;
  rdfs:subClassOf obo:VT_0000807 .

obo:VT_0010344 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-9,trans-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-9 and C-12." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0010610 a rdfs:Class ;
  rdfs:label "areola quantity" ;
  rdfs:comment "The proportion or number of the circular, pigmented areas of the skin surrounding the mammalian nipple." ;
  rdfs:subClassOf obo:VT_0010609 .

obo:VT_0010534 a rdfs:Class ;
  rdfs:label "erythrocyte ion transport trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the movement in red blood cells of atoms carrying an electric charge." ;
  rdfs:subClassOf obo:VT_0003656 .

obo:VT_0005380 a rdfs:Class ;
  rdfs:label "embryonic development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of an embryo during the progression from its formation until the end of its embryonic life stage." ;
  rdfs:subClassOf obo:VT_0000069 .

obo:VT_0010795 a rdfs:Class ;
  rdfs:label "lung molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the spongy organs of respiration contained within the pleural cavity of the thorax." ;
  rdfs:subClassOf obo:VT_0001175 .

obo:VT_0011340 a rdfs:Class ;
  rdfs:label "feather amount" ;
  rdfs:comment "The proportion or number of the surface covering of birds, made of keratin." ;
  rdfs:subClassOf obo:VT_1000664 .

obo:VT_0003843 a rdfs:Class ;
  rdfs:label "sagittal suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the articulation between the parietal bones." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0011076 a rdfs:Class ;
  rdfs:label "inferior temporal gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the longitudinal ridge on the rostroventral surface of the temporal lobe." ;
  rdfs:subClassOf obo:VT_0000801 .

obo:VT_0010086 a rdfs:Class ;
  rdfs:label "vertebral column morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the supporting, flexible bony structure that encases the spinal cord." ;
  rdfs:subClassOf obo:VT_0002114 .

obo:VT_0010260 a rdfs:Class ;
  rdfs:label "colostrum immunoglobulin M amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of an immunoglobulin formed during the early period of an immune response; also stimulates complement activity." ;
  rdfs:subClassOf obo:VT_0010257 .

obo:VT_0010999 a rdfs:Class ;
  rdfs:label "body water amount" ;
  rdfs:comment "The proportion, quantity, or volume of water retained in the body." ;
  rdfs:subClassOf obo:VT_0001784 .

obo:VT_0000468 a rdfs:Class ;
  rdfs:label "esophageal epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the epithelial layer that lines the esophagus, the part of the digestive canal through which food passes from the pharynx to the stomach." ;
  rdfs:subClassOf obo:VT_0000467 .

obo:VT_0010141 a rdfs:Class ;
  rdfs:label "optic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to systematic arrangement of the fibers of the second cranial nerve which is responsible for conveying visual information from the retina to the brain." ;
  rdfs:subClassOf obo:VT_0001330 , obo:VT_0010142 .

obo:VT_0000599 a rdfs:Class ;
  rdfs:label "liver size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0000598 .

obo:VT_0001018 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell efferent innervation morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the efferent terminals, occurring as clusters, in the cochlear OHC region; normally, medial olivocochlear neurons, which are primarily found in rostral and ventral periolivary regions, project mainly to the contralateral cochlea, and terminate directly on OHCs." ;
  rdfs:subClassOf obo:VT_0004399 .

obo:VT_0008190 a rdfs:Class ;
  rdfs:label "transitional stage B cell quantity" ;
  rdfs:comment "The proportion or number of immature B cells of an intermediate stage between the pre-B cell stage and the mature naive stage; transitional B cells express surface immunoglobulin, and are subject to the process of B cell selection." ;
  rdfs:subClassOf obo:VT_0008188 , obo:VT_0008215 .

obo:VT_1000705 a rdfs:Class ;
  rdfs:label "mammary gland width" ;
  rdfs:comment "The distance from side to side of the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0010002 .

obo:VT_0006069 a rdfs:Class ;
  rdfs:label "retinal neuronal layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the neuronal layers that make up the retina, including the ganglion cell, inner plexiform, inner nuclear, outer plexiform, outer nuclear layers, the inner and outer segments." ;
  rdfs:subClassOf obo:VT_0003727 .

obo:VT_0011258 a rdfs:Class ;
  rdfs:label "forebrain molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived." ;
  rdfs:subClassOf obo:VT_0000783 , obo:VT_0010585 .

obo:VT_0000873 a rdfs:Class ;
  rdfs:label "cerebellum external granule cell layer thickness" ;
  rdfs:comment "The distance between the surfaces of the transient layer of the cerebellar cortex which is composed of dividing and migrating granule cells." ;
  rdfs:subClassOf obo:VT_0000872 .

obo:VT_0010487 a rdfs:Class ;
  rdfs:label "response to xenobiotic stimulus trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of exposure to a foreign compound." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0011353 a rdfs:Class ;
  rdfs:label "wattle mass" ;
  rdfs:comment "The amount of matter in the fleshy dewlap or caruncle hanging from various parts of the head or neck in several groups of birds, goats, and other animals." ;
  rdfs:subClassOf obo:VT_0011352 .

obo:VT_0000659 a rdfs:Class ;
  rdfs:label "prostate size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the gland surrounding the beginning of the urethra in males that secretes part of the seminal fluid." ;
  rdfs:subClassOf obo:VT_0000655 , obo:VT_0001158 .

obo:VT_0010450 a rdfs:Class ;
  rdfs:label "cognitive behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic of actions or reactions of an organism that occur as the result of cognition; where cognition is defined as the operation of the mind by which an organism becomes aware of objects of thought or perception." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0010695 a rdfs:Class ;
  rdfs:label "blood ghrelin amount" ;
  rdfs:comment "The proportion, quantity, or volume of the peptide hormone produced mainly by P/D1 cells lining the fundus of the stomach and epsilon cells of the pancreas that stimulates hunger and serves as a potent stimulator of growth hormone from the anterior pituitary gland; in addition to stimulating appetite and growth, ghrelin also plays various roles in energy homeostasis, neuropathy, and in the cardiovascular and immune systems." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0001695 a rdfs:Class ;
  rdfs:label "gastrulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the development and invagination of the embryonic germ layers." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0000552 a rdfs:Class ;
  rdfs:label "radius morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bone situated on the lateral side of the ulna in the forelimb." ;
  rdfs:subClassOf obo:VT_0010104 .

obo:VT_0011185 a rdfs:Class ;
  rdfs:label "choroid plexus ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the network formed by blood vessels and the tela choroidea which secretes CSF into the ventricular spaces. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011184 .

obo:VT_0003809 a rdfs:Class ;
  rdfs:label "hair shaft morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the free portion of the hair, consisting of the cuticle, cortex, and the medulla." ;
  rdfs:subClassOf obo:VT_0000367 .

obo:VT_0015006 a rdfs:Class ;
  rdfs:label "renal fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the kidney." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0000834 a rdfs:Class ;
  rdfs:label "subthalamus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anterior part of the diencephalon that lies between the thalamus, hypothalamus, and tegmentum of the mesencephalon, including subthalamic nucleus, zona incerta, the fields of Forel, and the nucleus of ansa lenticularis." ;
  rdfs:subClassOf obo:VT_0000830 .

obo:VT_0010076 a rdfs:Class ;
  rdfs:label "parietomastoid suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the suture that unites the mastoid process of the temporal bone with the region of the mastoid angle of the parietal bone; continuous with the squamosal suture." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_1000712 a rdfs:Class ;
  rdfs:label "skeletal muscle mass" ;
  rdfs:comment "The amount of matter in one or more of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0003398 .

obo:VT_0000665 a rdfs:Class ;
  rdfs:label "coagulating gland ductal branching trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the branches and distal tips of the vesicles of the coagulating gland." ;
  rdfs:subClassOf obo:VT_0001163 .

obo:VT_0001062 a rdfs:Class ;
  rdfs:label "oculomotor nerve size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the nerve of the extraocular muscles, iris and ciliary body." ;
  rdfs:subClassOf obo:VT_0001061 .

obo:VT_0011323 a rdfs:Class ;
  rdfs:label "gingiva ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the fibrous investing tissue of the jaw, covered by keratinized epithelium, that immediately surrounds a tooth and is contiguous with its periodontal ligament and with the mucossal tissues of the mouth. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011322 .

obo:VT_0010783 a rdfs:Class ;
  rdfs:label "urinary system integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of any of the organs involved in the production or excretion of urine." ;
  rdfs:subClassOf obo:VT_0000516 .

obo:VT_0010979 a rdfs:Class ;
  rdfs:label "blood L-valine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of valine, a branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isopropyl group." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0008182 a rdfs:Class ;
  rdfs:label "marginal zone B cell quantity" ;
  rdfs:comment "The proportion or number of CD23-negative, CD21-positive B cells of the marginal zone of the spleen expressing a B cell receptor usually reactive to bacterial cell wall components or senescent self components such as oxidized-LDL." ;
  rdfs:subClassOf obo:VT_0008180 , obo:VT_0008211 .

obo:VT_0010359 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-9,trans-11-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-9 and C-11." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0008193 a rdfs:Class ;
  rdfs:label "marginal zone B cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in a CD23-negative, CD21-positive B cell of the marginal zone of the spleen expressing a B cell receptor usually reactive to bacterial cell wall components or senescent self components such as oxidized-LDL." ;
  rdfs:subClassOf obo:VT_0002459 .

obo:VT_0002929 a rdfs:Class ;
  rdfs:label "bile duct development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the channels that secrete bile from the liver to the gall bladder and intestines during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003943 .

obo:VT_0010538 a rdfs:Class ;
  rdfs:label "lateral septum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of this portion of the septum which has strong projections to hypothalamic and midbrain regions and receives projections from the hippocampus and amygdala." ;
  rdfs:subClassOf obo:VT_0010537 .

obo:VT_0011373 a rdfs:Class ;
  rdfs:label "respiratory gas excretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to any gas that is excreted by the respiratory system." ;
  rdfs:subClassOf obo:VT_0001943 .

obo:VT_0010953 a rdfs:Class ;
  rdfs:label "erythrocyte hemoglobin amount" ;
  rdfs:comment "The proportion, quantity, or volume in red blood cells of  the oxygen-carrying protein." ;
  rdfs:subClassOf obo:VT_0010939 .

obo:VT_0004192 a rdfs:Class ;
  rdfs:label "kidney pyramid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the conical mass of tissue, containing part of the secreting and collecting tubules, whose base faces the renal cortex." ;
  rdfs:subClassOf obo:VT_0003014 .

obo:VT_1000121 a rdfs:Class ;
  rdfs:label "lumbar vertebra quantity" ;
  rdfs:comment "The proportion or number of bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0000138 .

obo:VT_0004243 a rdfs:Class ;
  rdfs:label "motor nerve terminal sprouting trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of a motor neuron to form new neuritic processes (sprouts) that emerge from the nodes of Ranvier or terminal arborizations in response to nerve injury (such as denervation), application of nerve toxin, or muscle inactivity (usually due to disease)." ;
  rdfs:subClassOf obo:VT_0004220 .

obo:VT_0002544 a rdfs:Class ;
  rdfs:label "digit length" ;
  rdfs:comment "The distance from point to point along the longest axis of the fingers or toes, or their corresponding parts in other vertebrates." ;
  rdfs:subClassOf obo:VT_0002110 .

obo:VT_0000900 a rdfs:Class ;
  rdfs:label "corpora quadrigemina size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the inferior and/or superior colliculus." ;
  rdfs:subClassOf obo:VT_0000899 , obo:VT_0006105 .

obo:VT_0010382 a rdfs:Class ;
  rdfs:label "milk triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this molecule, glycerol esterified at each of its three hydroxyl groups by a fatty acid." ;
  rdfs:subClassOf obo:VT_0000187 , obo:VT_0010261 .

obo:VT_0004297 a rdfs:Class ;
  rdfs:label "proprioceptive neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sensory neurons of the dorsal root ganglia that sense body position and send information to the spinal cord about how much the muscle is stretched." ;
  rdfs:subClassOf obo:VT_0000965 , obo:VT_0002882 , obo:VT_0015101 .

obo:VT_0010301 a rdfs:Class ;
  rdfs:label "heart physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the hollow, muscular organ that pumps blood through the body." ;
  rdfs:subClassOf obo:VT_0001544 .

obo:VT_0002465 a rdfs:Class ;
  rdfs:label "eosinophil physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in 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 and which can be stained by the dye eosin; involved in clearance of parasitic infections and in allergic reactions." ;
  rdfs:subClassOf obo:VT_0002462 .

obo:VT_0002661 a rdfs:Class ;
  rdfs:label "corpus epididymis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the body of the epididymis." ;
  rdfs:subClassOf obo:VT_0002631 .

obo:VT_0011090 a rdfs:Class ;
  rdfs:label "salivary gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the saliva-secreting glands of the oral cavity." ;
  rdfs:subClassOf obo:VT_0000613 .

obo:VT_0003051 a rdfs:Class ;
  rdfs:label "tail shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the appendage at the caudal end of the vertebral column." ;
  rdfs:subClassOf obo:VT_0002111 .

obo:VT_0010282 a rdfs:Class ;
  rdfs:label "milk alpha-S2-casein amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of alpa-S2-casein, a minor form of casein." ;
  rdfs:subClassOf obo:VT_0010666 .

obo:VT_0010312 a rdfs:Class ;
  rdfs:label "milk fatty acid C10:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a ten-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0001671 a rdfs:Class ;
  rdfs:label "vitamin absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in any of a group of organic substances, present in food, that are essential to normal metabolism." ;
  rdfs:subClassOf obo:VT_0001666 .

obo:VT_0010349 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9,trans-11-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a cis double bond at C-9, and a trans double bond at C-11." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0002828 a rdfs:Class ;
  rdfs:label "glomerular capsule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the expanded beginning of a nephron that encloses the glomerulus." ;
  rdfs:subClassOf obo:VT_0002827 .

obo:VT_0011033 a rdfs:Class ;
  rdfs:label "spinal cord ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the cylindrical tissue of the vertebral canal that extends from the medulla oblangata to the conus medullaris. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010577 .

obo:VT_0003977 a rdfs:Class ;
  rdfs:label "blood carnitine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of carnitine, a quaternary ammonium amino acid derivative involved in transport of fatty acids across the mitochondrial membrane." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010410 a rdfs:Class ;
  rdfs:label "gonadotropin-releasing hormone secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of the peptide hormone secreted by the hypothalamus that stimulates release of follicle-stimulating hormone and leuteinizing hormone from the anterior pituitary." ;
  rdfs:subClassOf obo:VT_0001752 .

obo:VT_0002471 a rdfs:Class ;
  rdfs:label "complement physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes involved in the cascade of proteins that act together to attack extracellular pathogens." ;
  rdfs:subClassOf obo:VT_0002419 .

obo:VT_0000074 a rdfs:Class ;
  rdfs:label "neurocranium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bones of the skull enclosing the brain." ;
  rdfs:subClassOf obo:VT_0010612 .

obo:VT_0010476 a rdfs:Class ;
  rdfs:label "blood glutamate dehydrogenase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which converts glutamate to alpha-ketoglutarate, and vice versa." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0011306 a rdfs:Class ;
  rdfs:label "time of preputial separation" ;
  rdfs:comment "The stage of development when the prepuce (foreskin) is completely detached from the glans penis." ;
  rdfs:subClassOf obo:VT_0001938 .

obo:VT_0000017 a rdfs:Class ;
  rdfs:label "outer ear size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the components of the auricles or external acoustic meatus." ;
  rdfs:subClassOf obo:VT_0002177 .

obo:VT_0001455 a rdfs:Class ;
  rdfs:label "vestibular hair cell stereocilia size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the nonmotile, actin-filled specialized microvilli (stereocilia) which are normally arrayed on vestibular hair cells in a staircase-like pattern." ;
  rdfs:subClassOf obo:VT_0001445 .

obo:VT_0003941 a rdfs:Class ;
  rdfs:label "skin development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0100018 .

obo:VT_0010613 a rdfs:Class ;
  rdfs:label "cranium size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the upper portion of the skull that excludes the mandible." ;
  rdfs:subClassOf obo:VT_0010612 .

obo:VT_0003793 a rdfs:Class ;
  rdfs:label "submandibular gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of either of the large major salivary glands situated beneath the mandible." ;
  rdfs:subClassOf obo:VT_0003792 .

obo:VT_0000181 a rdfs:Class ;
  rdfs:label "blood LDL cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the lipoprotein: cholesterol complex that transports cholesterol out of the arteries and around the body, for use by various tissues in normal bodily functions." ;
  rdfs:subClassOf obo:VT_0000180 .

obo:VT_0000462 a rdfs:Class ;
  rdfs:label "gastrointestinal system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the components of the system that converts ingested food to nutrients and energy." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0001142 a rdfs:Class ;
  rdfs:label "vaginal opening morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the opening to the genital canal in the female." ;
  rdfs:subClassOf obo:VT_0001139 .

obo:VT_0011040 a rdfs:Class ;
  rdfs:label "pineal gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the midline, cone-like structure located in the dorso-caudal roof of the third ventricle, attached by peduncles to the habenular and posterior commissures,  which produces melatonin." ;
  rdfs:subClassOf obo:VT_0000632 .

obo:VT_0004321 a rdfs:Class ;
  rdfs:label "sternum length" ;
  rdfs:comment "The distance from point to point along the longest axis of the long, flat bone of the chest." ;
  rdfs:subClassOf obo:VT_0004323 .

obo:VT_0001944 a rdfs:Class ;
  rdfs:label "pancreas morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream." ;
  rdfs:subClassOf obo:VT_0000050 , obo:VT_0002163 .

obo:VT_0011234 a rdfs:Class ;
  rdfs:label "cartilage ribonucleic acid amount" ;
  rdfs:comment """The proportion, quantity, or volume of ribonucleic acid in nonvascular, 
resilient, flexible connective tissue found primarily in joints, walls of the thorax, and tubular structures, but which also comprises most of the skeleton in early fetal life; some species have skeletons that are completely composed of cartilage which is never ossified. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds.""" ;
  rdfs:subClassOf obo:VT_0011233 , obo:VT_0011284 .

obo:VT_0008085 a rdfs:Class ;
  rdfs:label "T-helper 1 cell quantity" ;
  rdfs:comment "The proportion or number of the type of T-helper cell whose cytokine production favors cellular immune responses and delayed type hypersensitivity." ;
  rdfs:subClassOf obo:VT_0002433 , obo:VT_0008073 .

obo:VT_0100025 a rdfs:Class ;
  rdfs:label "mammary gland cistern morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the largest area for milk accumulation in the ductal system of the mammary gland in some species." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_0001017 a rdfs:Class ;
  rdfs:label "stellate ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of neurons formed by the fusion of the inferior cervical and first thoracic ganglia." ;
  rdfs:subClassOf obo:VT_0015050 .

obo:VT_1000742 a rdfs:Class ;
  rdfs:label "sarcomere length" ;
  rdfs:comment "The distance from point to point along the longest axis of the segment of a myofibril between two Z lines." ;
  rdfs:subClassOf obo:VT_0004090 .

obo:VT_0002619 a rdfs:Class ;
  rdfs:label "lymphocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells involved in adaptive immune reactions of the body, including B cells, T cells and natural killer cells." ;
  rdfs:subClassOf obo:VT_0008246 .

obo:VT_0004373 a rdfs:Class ;
  rdfs:label "humerus curvature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree or shape of the bend in the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0005296 .

obo:VT_0010863 a rdfs:Class ;
  rdfs:label "hypothalamus serotonin amount" ;
  rdfs:comment "The proportion, quantity or volume in the hypothalamus (the ventral part of the diencephalon, which forms the floor and lateral wall of the third ventricle) of a monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0010838 , obo:VT_0010876 .

obo:VT_0000022 a rdfs:Class ;
  rdfs:label "outer ear shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of any of the components of the auricles or external acoustic meatus." ;
  rdfs:subClassOf obo:VT_0002177 .

obo:VT_0009544 a rdfs:Class ;
  rdfs:label "thymus epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the supporting framework of the thymus, the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0000703 .

obo:VT_0004438 a rdfs:Class ;
  rdfs:label "vestibular hair cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the sensory epithelium of the maculae and cristae in the membranous labyrinth of the inner ear." ;
  rdfs:subClassOf obo:VT_0003879 .

obo:VT_0011107 a rdfs:Class ;
  rdfs:label "eye integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the eye, the organ of vision." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0000006 a rdfs:Class ;
  rdfs:label "esophagus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the part of the digestive canal through which food passes from the pharynx to the stomach." ;
  rdfs:subClassOf obo:VT_0000467 .

obo:VT_0004152 a rdfs:Class ;
  rdfs:label "blood iron amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this metallic element that normally occurs in the heme of hemoglobin, myoglobin, transferrin, ferritin, and iron-containing porphyrins; it is an essential component of enzymes such as catalase, peroxidase, and various cytochromes." ;
  rdfs:subClassOf obo:VT_0000068 .

obo:VT_0000141 a rdfs:Class ;
  rdfs:label "vertebral body morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the main portion of the vertebra, anterior to the vertebral canal." ;
  rdfs:subClassOf obo:VT_0000137 .

obo:VT_0010719 a rdfs:Class ;
  rdfs:label "response to methamphetamine trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of methamphetamine exposure." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0011125 a rdfs:Class ;
  rdfs:label "placenta molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the organ of metabolic interchange between the fetus and mother, partly of embryonic origin and partly of maternal origin." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_1000518 a rdfs:Class ;
  rdfs:label "adipose fatty acid trans-11-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a monounsaturated fatty acid (C18H34O2), with a carbon-carbon double bond at C-11, present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005285 .

obo:VT_0010044 a rdfs:Class ;
  rdfs:label "intramuscular adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of fat-storing cells/tissue present within skeletal muscle." ;
  rdfs:subClassOf obo:VT_0000759 , obo:VT_0001781 .

obo:VT_0000033 a rdfs:Class ;
  rdfs:label "mitral valve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the valve between the left atrium and the left ventricle of the heart." ;
  rdfs:subClassOf obo:VT_0000025 .

obo:VT_0001238 a rdfs:Class ;
  rdfs:label "epidermis stratum spinosum thickness" ;
  rdfs:comment "The distance between the surfaces of the layer between the stratum granulosum and stratum basale in the epidermis." ;
  rdfs:subClassOf obo:VT_0001236 .

obo:VT_0001790 a rdfs:Class ;
  rdfs:label "immune system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organs or cells associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_1000783 .

obo:VT_0004127 a rdfs:Class ;
  rdfs:label "hypodermis thickness" ;
  rdfs:comment "The distance between the surfaces of the irregular layer of adipose and connective tissue, stroma, or membrane immediately deep to the skin and superficial to the deep fascia." ;
  rdfs:subClassOf obo:VT_0003705 .

obo:VT_0011157 a rdfs:Class ;
  rdfs:label "cranium ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the upper portion of the skull, excluding the mandible. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011156 .

obo:VT_0005647 a rdfs:Class ;
  rdfs:label "sex gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in any of the organized aggregations of cells that function as secretory or excretory organs and are associated with reproduction." ;
  rdfs:subClassOf obo:VT_0001919 , obo:VT_0002164 .

obo:VT_0000715 a rdfs:Class ;
  rdfs:label "thymocyte quantity" ;
  rdfs:comment "The proportion or number of immature T cells located in the thymus." ;
  rdfs:subClassOf obo:VT_0000703 , obo:VT_0006387 .

obo:VT_0100036 a rdfs:Class ;
  rdfs:label "mammary alveoli capacity" ;
  rdfs:comment "The volume of or amount contained in the sac-like structure of the mammary gland that synthesizes and secretes milk after pregnancy." ;
  rdfs:subClassOf obo:VT_0100021 .

obo:VT_0010506 a rdfs:Class ;
  rdfs:label "blood IDL phospholipid amount" ;
  rdfs:comment "The proportion, quantity, or volume of phospholipid found in the intermediate density lipoprotein fraction of whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0006084 .

obo:VT_0004063 a rdfs:Class ;
  rdfs:label "heart left atrium capacity" ;
  rdfs:comment "The volume of or amount contained in the left upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000012 .

obo:VT_0003687 a rdfs:Class ;
  rdfs:label "intraocular muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the unstriated, involuntary muscles within the eyeball." ;
  rdfs:subClassOf obo:VT_0000767 , obo:VT_0003686 .

obo:VT_0003880 a rdfs:Class ;
  rdfs:label "central pattern generator physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the functions of or processes in the neural networks that produce rhythmic patterned output without sensory input and underlie rhythmic motor patterns." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010625 a rdfs:Class ;
  rdfs:label "blood malondialdehyde amount" ;
  rdfs:comment "The proportion, quantity, or volume in the blood of the dialdehyde of malonic acid." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0000152 a rdfs:Class ;
  rdfs:label "proximal rib morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the rib structures near the spine; ribs do not contact vertebrae." ;
  rdfs:subClassOf obo:VT_0000150 .

obo:VT_0000174 a rdfs:Class ;
  rdfs:label "lymph physiology trait" ;
  rdfs:comment "Any measurable functional characteristic related to the function of or processes in the fluid which is collected from the tissues throughout the body, flows in the lymphatic vessels, and is eventually added to the venous blood circulation." ;
  rdfs:subClassOf obo:VT_0001790 , obo:VT_0010040 .

obo:VT_0004816 a rdfs:Class ;
  rdfs:label "class switch recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the rearrangement of the heavy chain genes of differentiating B cells such that the initially encoded heavy chain IgM molecule is altered to one encoding IgG, IgA or IgE; normally, this allows the body to produce antibodies with different effector functions." ;
  rdfs:subClassOf obo:VT_0002144 , obo:VT_0002459 .

obo:VT_0015074 a rdfs:Class ;
  rdfs:label "organ system trait" ;
  rdfs:comment "Any measurable or observable characteristic of an anatomical group that has as its parts distinct anatomical structures interconnected by anatomical structures at a lower level of granularity." ;
  rdfs:subClassOf obo:VT_0000001 .

obo:VT_0000192 a rdfs:Class ;
  rdfs:label "mineral amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of any inorganic element or compound that has importance in body functions." ;
  rdfs:subClassOf obo:VT_0005636 .

obo:VT_0000237 a rdfs:Class ;
  rdfs:label "blood cell quantity" ;
  rdfs:comment "The proportion or numbers of the various types of blood cells." ;
  rdfs:subClassOf obo:VT_0002429 .

obo:VT_0015032 a rdfs:Class ;
  rdfs:label "obsolete behavioral response to alcohol trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to a change in behavior elicited by alcohol consumption." .

obo:VT_0001222 a rdfs:Class ;
  rdfs:label "epidermis cell quantity" ;
  rdfs:comment "The proportion or number of cells in the superficial epithelial portion of the skin." ;
  rdfs:subClassOf obo:VT_0001216 .

obo:VT_0005195 a rdfs:Class ;
  rdfs:label "posterior eye segment morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the parts of the eye that lie in back of, or dorsal to, the lens (but not inclusive)." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0010852 a rdfs:Class ;
  rdfs:label "midbrain/pons 5-hydroxyindoleacetic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of indole-3-acetic acid substituted by a hydroxy group at C-5." ;
  rdfs:subClassOf obo:VT_0010836 , obo:VT_0010874 .

obo:VT_0002284 a rdfs:Class ;
  rdfs:label "tracheal smooth muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the unstriated, involuntary muscle lining the tube descending from the larynx and branching into the right and left main bronchi." ;
  rdfs:subClassOf obo:VT_0000767 , obo:VT_0002282 .

obo:VT_0003994 a rdfs:Class ;
  rdfs:label "dorsal spinal root morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the posterior bundle of nerves emerging from the spinal cord to join with the anterior/ventral nerve bundle at each spinal cord segment to form one of the 31 paired peripheral nerves." ;
  rdfs:subClassOf obo:VT_0001077 .

obo:VT_0010887 a rdfs:Class ;
  rdfs:label "blood bradykinin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of bradykinin, a linear nonapeptide messenger belonging to the kinin group of proteins." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0001947 a rdfs:Class ;
  rdfs:label "mucociliary clearance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the mechanism that removes mucus and other foreign particles and microorganisms from the lungs by directed ciliary and secretory activity of the respiratory submucosal glands." ;
  rdfs:subClassOf obo:VT_0002314 .

obo:VT_0002391 a rdfs:Class ;
  rdfs:label "Peyer's patch germinal center morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the Peyer's patch where B cells proliferate and differentiate into plasma cells." ;
  rdfs:subClassOf obo:VT_0002389 .

obo:VT_0010772 a rdfs:Class ;
  rdfs:label "central nervous system integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the neural tube derivatives: the brain and spinal cord. In invertebrates it includes central ganglia plus nerve cord." ;
  rdfs:subClassOf obo:VT_0010566 .

obo:VT_0002914 a rdfs:Class ;
  rdfs:label "endplate potential activity" ;
  rdfs:comment "The degree of function or response of peripheral synapses to stimulation; these amplitudes are larger than central synapse potentials." ;
  rdfs:subClassOf obo:VT_0002913 .

obo:VT_0011282 a rdfs:Class ;
  rdfs:label "connective tissue molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the physical or functional supporting tissue of the body, a major constituent of which is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0011297 a rdfs:Class ;
  rdfs:label "femur ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the major bone in the upper portion of the hindlimb of quadrupeds or the lower limb of bipeds. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011068 , obo:VT_0011296 .

obo:VT_0010614 a rdfs:Class ;
  rdfs:label "cranium mass" ;
  rdfs:comment "The amount of matter in the upper portion of the skull that excludes the mandible." ;
  rdfs:subClassOf obo:VT_0010613 .

obo:VT_0010602 a rdfs:Class ;
  rdfs:label "aorta integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0000272 , obo:VT_0010639 .

obo:VT_0003310 a rdfs:Class ;
  rdfs:label "modiolus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the central conical bony pillar of the cochlea." ;
  rdfs:subClassOf obo:VT_0003309 .

obo:VT_0000361 a rdfs:Class ;
  rdfs:label "mast cell protease storage trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the amounts of proteolytic enzymes stored in mast cells." ;
  rdfs:subClassOf obo:VT_0000359 .

obo:VT_0003247 a rdfs:Class ;
  rdfs:label "glutaminergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that utilize glutamate as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0000849 a rdfs:Class ;
  rdfs:label "cerebellum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the metencephalon that lies in the posterior cranial fossa dorsal to the pons and medulla that is concerned with the coordination of movement and learning of motor skills." ;
  rdfs:subClassOf obo:VT_0000847 .

obo:VT_0001922 a rdfs:Class ;
  rdfs:label "male fertility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of a male to produce live offspring." ;
  rdfs:subClassOf obo:VT_0003698 , obo:VT_0010464 .

obo:VT_0000245 a rdfs:Class ;
  rdfs:label "erythropoiesis trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the formation of red blood cells." ;
  rdfs:subClassOf obo:VT_0002123 .

obo:VT_0010960 a rdfs:Class ;
  rdfs:label "sodium ion homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to any process involved in the maintenance of an internal equilibrium of sodium ions within an organism or cell." ;
  rdfs:subClassOf obo:VT_0001765 .

obo:VT_0005000 a rdfs:Class ;
  rdfs:label "immune tolerance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process that directly activates any of the steps required for tolerance, a physiologic state in which the immune system does not react destructively against the components of an organism that harbors it or against antigens that are introduced to it." ;
  rdfs:subClassOf obo:VT_0001790 .

obo:VT_0001539 a rdfs:Class ;
  rdfs:label "caudal vertebra quantity" ;
  rdfs:comment "The proportion or number of the bony segments of the tail; in tailless vertebrates, these vertebrae may be united to form the coccyx." ;
  rdfs:subClassOf obo:VT_0000138 .

obo:VT_0003235 a rdfs:Class ;
  rdfs:label "alisphenoid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of either of the broad curved wing-like expanses on each side of the sphenoid bone in adults; may exist independently in the young." ;
  rdfs:subClassOf obo:VT_0000104 .

obo:VT_0010055 a rdfs:Class ;
  rdfs:label "muscle fatty acid C20:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an unsaturated fatty acid (C20H36O2), with two carbon-carbon double bonds, present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010049 .

obo:VT_0005416 a rdfs:Class ;
  rdfs:label "blood protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any of the macromolecules consisting of long chains of amino acids in peptide linkage." ;
  rdfs:subClassOf obo:VT_0010120 , obo:VT_0010931 .

obo:VT_0000495 a rdfs:Class ;
  rdfs:label "colon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the portion of the large intestine between the cecum and the rectum." ;
  rdfs:subClassOf obo:VT_0000489 .

obo:VT_0000675 a rdfs:Class ;
  rdfs:label "palmar eccrine gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, or pattern of the sweat glands of the palm." ;
  rdfs:subClassOf obo:VT_0000674 , obo:VT_0004271 .

obo:VT_0004335 a rdfs:Class ;
  rdfs:label "utricle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the larger of the two sacs in the vestibule." ;
  rdfs:subClassOf obo:VT_0006090 .

obo:VT_0003242 a rdfs:Class ;
  rdfs:label "basal ganglion neuron quantity" ;
  rdfs:comment "The proportion or number of neurons in the group of nuclei associated with the ability to carry out willed movements, including the caudate, putamen, nucleus accumbens, globus pallidus, substantia nigra, and subthalamic nucleus." ;
  rdfs:subClassOf obo:VT_0006007 .

obo:VT_0010293 a rdfs:Class ;
  rdfs:label "milk phosphorus amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this nonmetallic essential element which occurs naturally in phosphates and takes part in a broad variety of chemical reactions." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0010026 a rdfs:Class ;
  rdfs:label "milk fatty acid C15:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a fifteen-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0011293 a rdfs:Class ;
  rdfs:label "mutifidus muscle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the dorsal components of the small, triangular muscular and tendinous bundles located on either side of the spinal column that fill the groove between the transverse and spinous processes of the vertebrae. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011059 .

obo:VT_0010371 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a cis double bond at C-9." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010547 a rdfs:Class ;
  rdfs:label "liver integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0000598 .

obo:VT_0000953 a rdfs:Class ;
  rdfs:label "oligodendrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neuroglia of the central nervous system that form the insulating myelin sheath of axons." ;
  rdfs:subClassOf obo:VT_0000952 .

obo:VT_1000431 a rdfs:Class ;
  rdfs:label "muscle indole amount" ;
  rdfs:comment "The proportion, quantity, or volume of indole, a tryptophan degradation product, detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0000982 a rdfs:Class ;
  rdfs:label "Meissner's corpuscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any or all of the numerous oval bodies found in the dermal papillae of thick skin; believed to be mechanoreceptors for tactile sensation." ;
  rdfs:subClassOf obo:VT_0000973 .

obo:VT_0003647 a rdfs:Class ;
  rdfs:label "oligodendrocyte quantity" ;
  rdfs:comment "The proportion or number of the neuroglia of the central nervous system that form the insulating myelin sheath of axons." ;
  rdfs:subClassOf obo:VT_0000953 .

obo:VT_0005068 a rdfs:Class ;
  rdfs:label "natural killer cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of non-T, non-B lymphocytes, having a granular morphology and which are important in innate immunity to viruses and other intracellular pathogens; in addition, these cells can kill certain tumor cells." ;
  rdfs:subClassOf obo:VT_0002619 .

obo:VT_0002443 a rdfs:Class ;
  rdfs:label "eosinophil development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the granular leukocytes having a two-lobed nucleus and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin." ;
  rdfs:subClassOf obo:VT_0008111 .

obo:VT_0015026 a rdfs:Class ;
  rdfs:label "neuron quantity" ;
  rdfs:comment "The proportion or number of the functional cells of the nervous system that receive, conduct, and transmit impulses." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0002773 a rdfs:Class ;
  rdfs:label "blood luteinizing hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of LH, the hormone that regulates steroid production by the interstitial cells of the testis and the ovary." ;
  rdfs:subClassOf obo:VT_0003361 , obo:VT_0005116 .

obo:VT_0001170 a rdfs:Class ;
  rdfs:label "bulbourethral gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the gland in males that lies along the prostate gland and secretes a fluid component of the seminal fluid into the urethra." ;
  rdfs:subClassOf obo:VT_0000655 , obo:VT_0001169 .

obo:VT_0004078 a rdfs:Class ;
  rdfs:label "caudate nucleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one or both C-shaped structures containing input neurons involved with control of voluntary movement in the brain." ;
  rdfs:subClassOf obo:VT_0004102 .

obo:VT_0000794 a rdfs:Class ;
  rdfs:label "parietal lobe morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upper central part of the cerebral hemisphere." ;
  rdfs:subClassOf obo:VT_0015105 .

obo:VT_0005022 a rdfs:Class ;
  rdfs:label "immature B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells of the B lymphocyte lineage that have undergone VDJ rearrangement of the heavy chain and V-J rearrangement of the light chain; these cells express IgM on the cell surface but have not yet been selected for self-reactivity." ;
  rdfs:subClassOf obo:VT_0002144 , obo:VT_0004939 .

obo:VT_0001137 a rdfs:Class ;
  rdfs:label "uterine cervix epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial layer of the cervix." ;
  rdfs:subClassOf obo:VT_0001135 .

obo:VT_0000024 a rdfs:Class ;
  rdfs:label "heart atrium appendage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small trabeculated chamber projecting from the atrium proper." ;
  rdfs:subClassOf obo:VT_0003105 .

obo:VT_0001094 a rdfs:Class ;
  rdfs:label "trigeminal ganglion cell size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cells of the trigeminal ganglion, the group of sensory neuron cell bodies associated with the fifth cranial nerve." ;
  rdfs:subClassOf obo:VT_0001095 .

obo:VT_0003531 a rdfs:Class ;
  rdfs:label "vagina development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the female reproductive canal located between the uterus and the vulva during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0003936 .

obo:VT_0001256 a rdfs:Class ;
  rdfs:label "body length" ;
  rdfs:comment "The distance from point to point along the longest axis of the body of an organism." ;
  rdfs:subClassOf obo:VT_0100005 .

obo:VT_0000063 a rdfs:Class ;
  rdfs:label "heart ventricle papillary muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the group of myocardial bundles which terminate in the chordae tendineae that attach to the cusps of the atrioventricular valves; each ventricle has an anterior and a posterior papillary muscle; the right ventricle sometimes has a septal papillary muscle." ;
  rdfs:subClassOf obo:VT_0005294 , obo:VT_0005329 .

obo:VT_0010170 a rdfs:Class ;
  rdfs:label "obsolete C3 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C3." .

obo:VT_0003987 a rdfs:Class ;
  rdfs:label "vestibular ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the vestibular ganglion or of the sensory neuron cell bodies associated with the eighth cranial nerve." ;
  rdfs:subClassOf obo:VT_0002856 .

obo:VT_0100030 a rdfs:Class ;
  rdfs:label "nipple angle" ;
  rdfs:comment "The angle between the vertical and the teat axis." ;
  rdfs:subClassOf obo:VT_0006078 .

obo:VT_0000357 a rdfs:Class ;
  rdfs:label "limb quantity" ;
  rdfs:comment "The proportion or number of the projecting, paired, jointed appendages of the body used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0002109 .

obo:VT_0006031 a rdfs:Class ;
  rdfs:label "branchial pouch morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the series of projections that form between the branchial arches." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_1000764 a rdfs:Class ;
  rdfs:label "muscle myoglobin amount" ;
  rdfs:comment "The proportion, quantity, or volume of the heme-containing, oxygen-carrying and storage protein in the contractile tissue that effects movement." ;
  rdfs:subClassOf obo:VT_1000433 .

obo:VT_0010479 a rdfs:Class ;
  rdfs:label "blood insulin-like growth factor amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this protein hormone, which is similar in molecular structure to insulin and plays a role in childhood growth and anabolic effects in adults." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0002369 a rdfs:Class ;
  rdfs:label "thymus subcapsular epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial cells lining the capsule and trabeculae of the thymus." ;
  rdfs:subClassOf obo:VT_0009544 .

obo:VT_0003703 a rdfs:Class ;
  rdfs:label "vestibulocochlear ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of neuron cell bodies associated with the eighth cranial nerve during embryogenesis; splits in later development to form the cochlear and vestibular ganglia." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0015052 a rdfs:Class ;
  rdfs:label "surface structure trait" ;
  rdfs:comment "Any measurable or observable characteristic of the organism subdivision which is the collection of anatomical structures on the body surface." ;
  rdfs:subClassOf obo:VT_0100003 .

obo:VT_0011111 a rdfs:Class ;
  rdfs:label "heart left atrium ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the left upper chamber of the heart. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010792 , obo:VT_0011110 .

obo:VT_0010607 a rdfs:Class ;
  rdfs:label "blood gamma-glutamyltransferase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which catalyzes the transfer of the gamma-glutamyl moiety of glutathione to an acceptor such as amino acid, peptide, or water." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0001310 a rdfs:Class ;
  rdfs:label "conjunctiva morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mucous membrane that lines the inner surface of the eyelids and the front of the eyeball." ;
  rdfs:subClassOf obo:VT_0005193 .

obo:VT_0015111 a rdfs:Class ;
  rdfs:label "inner ear development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of any of the components the labyrinth, including the semicircular canals, vestibule, and cochlea." ;
  rdfs:subClassOf obo:VT_0003938 .

obo:VT_0010815 a rdfs:Class ;
  rdfs:label "urine hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of any of the chemical substances that have specific regulatory effects on the activity of a certain organ or organs; originally applied to substances secreted by various endocrine glands and transported in the bloodstream to the target organs, it is sometimes extended to include substances that are not produced by the endocrine glands but that have similar effects." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0002256 a rdfs:Class ;
  rdfs:label "laryngeal cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cartilaginous structures that support the larynx." ;
  rdfs:subClassOf obo:VT_0000163 , obo:VT_0002249 .

obo:VT_0010595 a rdfs:Class ;
  rdfs:label "liver sitosterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the bile-secreting exocrine gland of a plant-derived sterol similar to cholesterol." ;
  rdfs:subClassOf obo:VT_0010593 .

obo:VT_0002982 a rdfs:Class ;
  rdfs:label "germ cell migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement of a germ cell, a cell specialized to produce haploid gametes, from point to point." ;
  rdfs:subClassOf obo:VT_0001919 .

obo:VT_0010040 a rdfs:Class ;
  rdfs:label "lymphatic system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood." ;
  rdfs:subClassOf obo:VT_0010253 , obo:VT_0100017 .

obo:VT_0011084 a rdfs:Class ;
  rdfs:label "outer ear molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the auricles or external acoustic meatus." ;
  rdfs:subClassOf obo:VT_0002177 .

obo:VT_0010132 a rdfs:Class ;
  rdfs:label "DN2 thymocyte quantity" ;
  rdfs:comment "The proportion or number of thymocytes that have the cell surface marker phenotype CD4-negative, CD8-negative, CD44-positive, and CD25-positive." ;
  rdfs:subClassOf obo:VT_0000715 , obo:VT_0005089 .

obo:VT_0010421 a rdfs:Class ;
  rdfs:label "epididymal fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens." ;
  rdfs:subClassOf obo:VT_0015000 .

obo:VT_0000379 a rdfs:Class ;
  rdfs:label "hair follicle quantity" ;
  rdfs:comment "The proportion or number of the tubular invaginations of the epidermis from which the hair shaft develops." ;
  rdfs:subClassOf obo:VT_0002076 .

obo:VT_0005594 a rdfs:Class ;
  rdfs:label "blood vessel smooth muscle dilation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the widening of the nonstriated, involuntary muscle tissue of the structures that convey blood throughout the body." ;
  rdfs:subClassOf obo:VT_0005595 .

obo:VT_0005061 a rdfs:Class ;
  rdfs:label "eosinophil morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the immature or mature form 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 and which can be stained by the dye eosin; involved in clearance of parasitic infections and in allergic reactions." ;
  rdfs:subClassOf obo:VT_0002441 .

obo:VT_0010461 a rdfs:Class ;
  rdfs:label "excretion behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism with regard to the elimination of waste products that arise as a result of metabolic activity." ;
  rdfs:subClassOf obo:VT_0010447 .

obo:VT_0003650 a rdfs:Class ;
  rdfs:label "kidney shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0001031 a rdfs:Class ;
  rdfs:label "outer hair cell stereocilia quantity" ;
  rdfs:comment "The proportion or numbers of the nonmotile, actin-filled specialized microvilli (stereocilia) normally arrayed on the outer sensory epithelial cells of the cochlea, which are normally in synaptic contact with the auditory nerve." ;
  rdfs:subClassOf obo:VT_0000893 , obo:VT_0001028 .

obo:VT_0003456 a rdfs:Class ;
  rdfs:label "tail size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the appendage at the caudal end of the vertebral column." ;
  rdfs:subClassOf obo:VT_0002111 .

obo:VT_0008176 a rdfs:Class ;
  rdfs:label "germinal center B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of rapidly cycling, mature B cells which have downregulated IgD expression and exhibit high levels of binding by peanut agglutinin (PNA), and are involved in T-dependent immune responses; germinal center B cells are found typically in the germinal centers of lymph nodes and spleen." ;
  rdfs:subClassOf obo:VT_0008171 .

obo:VT_0008217 a rdfs:Class ;
  rdfs:label "B cell activation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the change in morphology and behavior of a mature or immature B cell during an immune response, resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific." ;
  rdfs:subClassOf obo:VT_0002144 , obo:VT_0002459 .

obo:VT_0004313 a rdfs:Class ;
  rdfs:label "vestibulocochlear ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of neuron cell bodies associated with the eighth cranial nerve during embryogenesis; splits in later development to form the cochlear and vestibular ganglia." ;
  rdfs:subClassOf obo:VT_0003703 .

obo:VT_0000777 a rdfs:Class ;
  rdfs:label "inferior colliculus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the paired inferior eminence of the mesencephalic tectum that is involved in preliminary visual processing, and control of eye movements." ;
  rdfs:subClassOf obo:VT_0000776 , obo:VT_0000900 .

obo:VT_0004174 a rdfs:Class ;
  rdfs:label "vertebral column orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of vertebra within the spinal column and the resulting rectilinear direction or curvature produced." ;
  rdfs:subClassOf obo:VT_0010086 .

obo:VT_0003762 a rdfs:Class ;
  rdfs:label "immune system organ physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organs associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0001790 .

obo:VT_0010195 a rdfs:Class ;
  rdfs:label "intestine length" ;
  rdfs:comment "The distance from point to point along the longest axis of the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0000477 .

obo:VT_0010758 a rdfs:Class ;
  rdfs:label "heart left ventricle end-diastolic diameter" ;
  rdfs:comment "The distance across the left lower chamber of the heart, immediately after mitral valve closure." ;
  rdfs:subClassOf obo:VT_0010492 .

obo:VT_0000574 a rdfs:Class ;
  rdfs:label "foot pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the body of fat on the foot." ;
  rdfs:subClassOf obo:VT_0004271 .

obo:VT_0001752 a rdfs:Class ;
  rdfs:label "secretion by hypothalamus trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of physiologically active substances from the hypothalamus." ;
  rdfs:subClassOf obo:VT_0005645 .

obo:VT_0010804 a rdfs:Class ;
  rdfs:label "uterus molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0001120 .

obo:VT_0004976 a rdfs:Class ;
  rdfs:label "B-1 B cell quantity" ;
  rdfs:comment "The proportion or number of the subset of B cells found predominantly in the peritoneum, pleural cavities, and spleen, which are enriched for self-reactivity; B-1 B cells are thought to be the primary source of natural IgM immunoglobulin, that is, IgM produced in large quantities without prior antigenic stimulation and generally reactive against various microorganisms, as well as the source of T-independent IgA immunoglobulin in the mucosal areas." ;
  rdfs:subClassOf obo:VT_0004940 , obo:VT_0008211 .

obo:VT_0000120 a rdfs:Class ;
  rdfs:label "bite alignment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the patterned arrangement of the upper and lower teeth with respect to each other or arrangement of the upper and lower jaws with respect to each other." ;
  rdfs:subClassOf obo:VT_0000438 , obo:VT_0100006 .

obo:VT_0001321 a rdfs:Class ;
  rdfs:label "pupil size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the central circular aperture of the iris through which light rays enter the eye." ;
  rdfs:subClassOf obo:VT_0001317 .

obo:VT_0010467 a rdfs:Class ;
  rdfs:label "lateral prostate mass" ;
  rdfs:comment "The amount of matter in the lateral lobe of the prostate." ;
  rdfs:subClassOf obo:VT_0000660 , obo:VT_0010466 .

obo:VT_0015096 a rdfs:Class ;
  rdfs:label "equilibrioception system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the structures involved in the processes by which an organism can perceive its orientation with respect to gravity." ;
  rdfs:subClassOf obo:VT_0015094 .

obo:VT_0002961 a rdfs:Class ;
  rdfs:label "axon guidance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the signaling mechanisms that allow precise navigation and connections of axonal growth cones to effector tissues." ;
  rdfs:subClassOf obo:VT_0006008 .

obo:VT_0006090 a rdfs:Class ;
  rdfs:label "utricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the larger of the two sacs in the vestibule." ;
  rdfs:subClassOf obo:VT_0004425 .

obo:VT_0010931 a rdfs:Class ;
  rdfs:label "blood molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the cell-containing fluid that circulates through the body, carrying nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues and taking away waste matter and carbon dioxide." ;
  rdfs:subClassOf obo:VT_0015078 .

obo:VT_0001437 a rdfs:Class ;
  rdfs:label "swallowing reflex trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to pull food through the esophagus to the stomach in response to feeding." ;
  rdfs:subClassOf obo:VT_0002069 .

obo:VT_0001666 a rdfs:Class ;
  rdfs:label "nutrient absorption trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the body to take in constituents of food necessary for normal physiologic function." ;
  rdfs:subClassOf obo:VT_0001663 .

obo:VT_0004275 a rdfs:Class ;
  rdfs:label "postnatal subventricular zone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mitotically active layer of cells surrounding the brain ventricles in the adult that consists of migrating neuroblasts, astrocytes and transitory amplifying progenitor cells." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0010509 a rdfs:Class ;
  rdfs:label "neurocranium mineral mass" ;
  rdfs:comment "The amount of matter in the minerals (inorganic elements or compounds that have importance in body functions) in the bones of the skull enclosing the brain." ;
  rdfs:subClassOf obo:VT_0005007 , obo:VT_0010508 .

obo:VT_0001697 a rdfs:Class ;
  rdfs:label "embryo size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the anatomical entity that comprises the organism 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:VT_0000069 , obo:VT_0005380 .

obo:VT_0010942 a rdfs:Class ;
  rdfs:label "erythrocyte ATP amount" ;
  rdfs:comment "The proportion, quantity, or volume in red blood cells of adenosine-5'-triphosphate, a molecule involved in the transportation of chemical energy during metabolic pathways." ;
  rdfs:subClassOf obo:VT_0010939 .

obo:VT_0010390 a rdfs:Class ;
  rdfs:label "milk xanthine oxidoreductase amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of xanthine oxidoreductase, one of the three predominant proteins in the milk fat globule membrane." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0003670 a rdfs:Class ;
  rdfs:label "glomerular capsule size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the expanded beginning of a nephron that encloses the glomerulus." ;
  rdfs:subClassOf obo:VT_0002828 .

obo:VT_0002752 a rdfs:Class ;
  rdfs:label "somatic nervous system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the peripheral nervous system that is responsible for conveying voluntary motor and external sensory information, including all nerves controlling the skeletal muscular system and external sensory receptors." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0010516 a rdfs:Class ;
  rdfs:label "blood glutathione amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this tripeptide antioxidant." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0001088 a rdfs:Class ;
  rdfs:label "nodose ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the large group of sensory neuron cell bodies, anterior to the jugular vein, associated with the vagus nerve (tenth cranial nerve)." ;
  rdfs:subClassOf obo:VT_0001087 .

obo:VT_0010334 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-10-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at C-10." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0005184 a rdfs:Class ;
  rdfs:label "blood progesterone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this anti-estrogenic steroid." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0001036 a rdfs:Class ;
  rdfs:label "submandibular ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the small parasympathetic ganglion of the lingual nerve." ;
  rdfs:subClassOf obo:VT_0001035 .

obo:VT_0010830 a rdfs:Class ;
  rdfs:label "medulla oblongata epinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the medulla oblongata (the region of the brainstem that lies directly above the spinal cord and controls vital autonomic functions) of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0010828 , obo:VT_0010871 , obo:VT_0011252 .

obo:VT_0003284 a rdfs:Class ;
  rdfs:label "large intestine orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement of the large intestinal tract in relation to other organs or to the body." ;
  rdfs:subClassOf obo:VT_0000489 , obo:VT_0003283 .

obo:VT_0011055 a rdfs:Class ;
  rdfs:label "thyroid gland molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the thyroid gland, a two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:VT_0000681 .

obo:VT_0003810 a rdfs:Class ;
  rdfs:label "hair cuticle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outermost layer of the hair shaft." ;
  rdfs:subClassOf obo:VT_0003809 .

obo:VT_0001777 a rdfs:Class ;
  rdfs:label "body temperature regulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the control of body heat." ;
  rdfs:subClassOf obo:VT_0005535 .

obo:VT_0004264 a rdfs:Class ;
  rdfs:label "extraembryonic tissue physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the membranes involved with embryonic protection and nutrition." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0010827 a rdfs:Class ;
  rdfs:label "tongue mass" ;
  rdfs:comment "The amount of matter in the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor." ;
  rdfs:subClassOf obo:VT_0010825 .

obo:VT_0006020 a rdfs:Class ;
  rdfs:label "tympanic ring size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bony ring at the ear canal to which the tympanic membrane is attached." ;
  rdfs:subClassOf obo:VT_0000030 .

obo:VT_0010255 a rdfs:Class ;
  rdfs:label "hematopoietic system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cells found in the blood and/or the blood-forming organs and tissues." ;
  rdfs:subClassOf obo:VT_0010251 .

obo:VT_0010327 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-11-C16:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with a sixteen-carbon backbone and a cis double bond at C-11." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0010200 a rdfs:Class ;
  rdfs:label "stomach mass" ;
  rdfs:comment "The amount of matter in the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0003883 .

obo:VT_0000784 a rdfs:Class ;
  rdfs:label "forebrain cell quantity" ;
  rdfs:comment "The proportion or numbers of cells in the anterior primitive cerebral vesicle; most rostral of three primary vesicles of the embryonic neural tube." ;
  rdfs:subClassOf obo:VT_0000783 .

obo:VT_0010995 a rdfs:Class ;
  rdfs:label "blood 4-hydroxyproline amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a monohydroxyproline where the hydroxy group is located at the 4-position. It is found in fibrillar collagen." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0003955 a rdfs:Class ;
  rdfs:label "ultimobranchial body morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the sac-like structure emanating from the caudal-most branchial pouch of the embryo; develops into the lateral portion of the thyroid that produces calcitonin in higher vertebrates." ;
  rdfs:subClassOf obo:VT_0003421 , obo:VT_0006031 .

obo:VT_0011269 a rdfs:Class ;
  rdfs:label "prefrontal cortex ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the anterior part of the frontal lobes of the brain, lying in front of the motor and premotor areas. This brain region has been implicated in planning complex cognitive behaviors, personality expression, decision making and moderating correct social behavior. The basic activity of this brain region is considered to be orchestration of thoughts and actions in accordance with internal goals. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011255 .

obo:VT_1000731 a rdfs:Class ;
  rdfs:label "chest width" ;
  rdfs:comment "The distance from side to side of the chest, viewed from the front; typically measured at the widest point above the forelimbs." ;
  rdfs:subClassOf obo:VT_0004134 .

obo:VT_0005084 a rdfs:Class ;
  rdfs:label "gall bladder morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the organ which serves as a storage reservoir for bile." ;
  rdfs:subClassOf obo:VT_0005083 .

obo:VT_0004261 a rdfs:Class ;
  rdfs:label "embryonic neuroepithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial cells that line the neural tube and develop into the neurons and glia of the nervous system and into the neural crest cells." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0010876 a rdfs:Class ;
  rdfs:label "brain serotonin amount" ;
  rdfs:comment "The proportion, quantity or volume in the brain of a monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0010585 .

obo:VT_0100003 a rdfs:Class ;
  rdfs:label "organism subdivision trait" ;
  rdfs:comment "Any measurable or observable characteristic of an anatomical structure which is a subpart of the whole organism; the mereological sum of these is the whole organism." ;
  rdfs:subClassOf obo:VT_0000001 .

obo:VT_0003661 a rdfs:Class ;
  rdfs:label "locus ceruleus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the dense cluster of neurons within the dorsorostral pons; it is the major location of neurons that release norepinephrine throughout the brain, and is responsible for physiological responses to stress and panic." ;
  rdfs:subClassOf obo:VT_0000848 .

obo:VT_0005524 a rdfs:Class ;
  rdfs:label "kidney plasma flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to plasma passing through the kidney." ;
  rdfs:subClassOf obo:VT_0100012 , obo:VT_2000006 .

obo:VT_0003743 a rdfs:Class ;
  rdfs:label "facial morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the region of the body that includes the front part of the head from the chin to the top of the forehead, where the mouth, eyes, nose, and other features are located." ;
  rdfs:subClassOf obo:VT_0000428 .

obo:VT_0001148 a rdfs:Class ;
  rdfs:label "testis size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the male reproductive gland(s) where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0000655 , obo:VT_0001146 .

obo:VT_0010247 a rdfs:Class ;
  rdfs:label "omasum mass" ;
  rdfs:comment "The amount of matter in the third forestomach in ruminants which connects the reticulum to the abomasum." ;
  rdfs:subClassOf obo:VT_0010237 , obo:VT_0010245 .

obo:VT_0008171 a rdfs:Class ;
  rdfs:label "mature B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the mature form of a B cell, a type of lymphocyte whose defining characteristic is the expression of an immunoglobulin complex." ;
  rdfs:subClassOf obo:VT_0004939 , obo:VT_0008195 .

obo:VT_0003315 a rdfs:Class ;
  rdfs:label "perineum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the area between the genital organs and the anus that lies beneath the pelvic diaphragm." ;
  rdfs:subClassOf obo:VT_0002160 .

obo:VT_1000278 a rdfs:Class ;
  rdfs:label "humerus mineral mass" ;
  rdfs:comment "The amount of matter in the minerals (inorganic elements or compounds that have importance in body functions) in the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0005007 , obo:VT_0005296 , obo:VT_0010013 .

obo:VT_0003930 a rdfs:Class ;
  rdfs:label "tooth hard tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the hard portion of the tooth surrounding the pulp, including the dentin, enamel and the cementum on the root." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0003180 a rdfs:Class ;
  rdfs:label "pulmonary endothelial cell surface area" ;
  rdfs:comment "The two-dimensional extent of the semi-permeable membrane that encloses the cytoplasm of a pulmonary endothelial cell." ;
  rdfs:subClassOf obo:VT_0000484 , obo:VT_0004007 , obo:VT_0006055 .

obo:VT_0000609 a rdfs:Class ;
  rdfs:label "liver physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in this bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0002139 .

obo:VT_0001025 a rdfs:Class ;
  rdfs:label "sympathetic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the neurons of the part of the autonomic nervous system that innervates smooth muscle, cardiac muscle and glands and mediates the body's response to stressful situations." ;
  rdfs:subClassOf obo:VT_0001007 .

obo:VT_0010620 a rdfs:Class ;
  rdfs:label "liver malondialdehyde amount" ;
  rdfs:comment "The proportion, quantity, or volume in the liver of the dialdehyde of malonic acid." ;
  rdfs:subClassOf obo:VT_0010497 .

obo:VT_0002386 a rdfs:Class ;
  rdfs:label "tubal tonsil morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph tissue associated with the pharyngeal opening of the auditory tube." ;
  rdfs:subClassOf obo:VT_0002379 .

obo:VT_0001379 a rdfs:Class ;
  rdfs:label "penile erection physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the achievement of a rigid and elevated state of the penis when the erectile tissue becomes filled with blood." ;
  rdfs:subClassOf obo:VT_0003698 .

obo:VT_0000877 a rdfs:Class ;
  rdfs:label "Purkinje cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons located at the interface of the molecular and internal granule layers of the cerebellar cortex; these inhibitory neurons provide the output of the cerebellar cortex through axons that project into the white matter, and extensive dendritic trees from the Purkinje cells extend upward in a single plane into the molecular layer where they synapse with parallel fibers of granule cells." ;
  rdfs:subClassOf obo:VT_0000875 , obo:VT_0002882 .

obo:VT_0003628 a rdfs:Class ;
  rdfs:label "leukocyte adhesion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which leukocytes adhere to the luminal aspects of high endothelial venules prior to transmigration out of the vessel." ;
  rdfs:subClassOf obo:VT_0003156 .

obo:VT_0015039 a rdfs:Class ;
  rdfs:label "body width" ;
  rdfs:comment "The distance from side to side of the body of an organism, perpendicular to the axis along which height is measured." ;
  rdfs:subClassOf obo:VT_0100005 .

obo:VT_0015100 a rdfs:Class ;
  rdfs:label "nociception system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the structures required for an organism to sense pain." ;
  rdfs:subClassOf obo:VT_0005392 .

obo:VT_0010051 a rdfs:Class ;
  rdfs:label "muscle fatty acid C14:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume of a saturated fatty acid (C14H28O2) present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010048 .

obo:VT_0002460 a rdfs:Class ;
  rdfs:label "blood immunoglobulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of members of a diverse group of plasma proteins, made up of polypeptide chains, that function as a primary mechanism for protection against disease." ;
  rdfs:subClassOf obo:VT_0010628 .

obo:VT_0002971 a rdfs:Class ;
  rdfs:label "brown adipose morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thermogenic form of adipose tissue that is composed of brown adipocytes." ;
  rdfs:subClassOf obo:VT_0000003 .

obo:VT_0010964 a rdfs:Class ;
  rdfs:label "CD25-positive T cell quantity" ;
  rdfs:comment "The proportion or number of the subset of regulatory T lymphocytes that carry the CD25 marker.  CD25 is the IL-2 receptor alpha chain." ;
  rdfs:subClassOf obo:VT_0010963 .

obo:VT_0004272 a rdfs:Class ;
  rdfs:label "basement membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the extracellular supportive tissue adjacent to the basal surface of the epithelia, including the epithelium of muscle cells, fat cells and Schwann cells; it is comprised of type IV collagen, laminin, and sulfated proteoglycans and other components and consists of two layers, the basal lamina and the lamina reticularis." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0006018 a rdfs:Class ;
  rdfs:label "tympanic membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thin, tense membrane forming the greater part of the lateral wall of the tympanic cavity and separating it from the external acoustic meatus; the tympanic membrane constitutes the boundary between the external and middle ear." ;
  rdfs:subClassOf obo:VT_0000049 .

obo:VT_0002990 a rdfs:Class ;
  rdfs:label "ureter length" ;
  rdfs:comment "The distance from point to point along the longest axis of the tube that conducts the urine from the renal pelvis to the bladder." ;
  rdfs:subClassOf obo:VT_0003585 .

obo:VT_0010618 a rdfs:Class ;
  rdfs:label "urine creatine amount" ;
  rdfs:comment "The proportion, quantity, or volume in urine of creatine, a naturally occurring amino acid in vertebrates that helps to supply energy to all cells in the body." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0002454 a rdfs:Class ;
  rdfs:label "macrophage antigen presentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of macrophage phagocytic cells to process and present antigen to T lymphocytes." ;
  rdfs:subClassOf obo:VT_0001835 , obo:VT_0002451 .

obo:VT_0005310 a rdfs:Class ;
  rdfs:label "salivary gland physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in any of the glands in the mouth that secrete saliva." ;
  rdfs:subClassOf obo:VT_0000066 , obo:VT_0002164 .

obo:VT_0004201 a rdfs:Class ;
  rdfs:label "fetal growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size or mass during the fetal period (sensu Mus: from E14 through birth)." ;
  rdfs:subClassOf obo:VT_0011174 .

obo:VT_0010856 a rdfs:Class ;
  rdfs:label "medulla oblongata norepinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the medulla oblongata (the region of the brainstem that lies directly above the spinal cord and controls vital autonomic functions) of a catecholamine hormone that functions as a neurotransmitter and is the precursor to epinephrine." ;
  rdfs:subClassOf obo:VT_0010837 , obo:VT_0010875 , obo:VT_0011252 .

obo:VT_0011200 a rdfs:Class ;
  rdfs:label "muscle arsenic amount" ;
  rdfs:comment "The proportion, quantity, or volume of this element which is toxic in most forms detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0003444 a rdfs:Class ;
  rdfs:label "neurotransmitter uptake trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the reabsorption of endogenous signaling molecules released into a synaptic cleft; neurotransmitters are released from presynaptic neurons and travel across the synaptic cleft to either excite or inhibit the target cell." ;
  rdfs:subClassOf obo:VT_0003635 .

obo:VT_0015037 a rdfs:Class ;
  rdfs:label "gland development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of an organized aggregation of cells functioning as a secretory or excretory organ." ;
  rdfs:subClassOf obo:VT_1000782 .

obo:VT_0003095 a rdfs:Class ;
  rdfs:label "corneal stroma development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the lamellated connective tissue layer of the cornea during its formation or differentiation." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0005220 a rdfs:Class ;
  rdfs:label "exocrine pancreas morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the acinar gland portion of the pancreas that secretes digestive enzymes." ;
  rdfs:subClassOf obo:VT_0001944 .

obo:VT_0002734 a rdfs:Class ;
  rdfs:label "mechanical nociception trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to sense pain elicited by mechanical stimulation." ;
  rdfs:subClassOf obo:VT_0015099 , obo:VT_0015100 .

obo:VT_0015071 a rdfs:Class ;
  rdfs:label "appendage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of an external body part that projects from the body." ;
  rdfs:subClassOf obo:VT_0015066 .

obo:VT_0001726 a rdfs:Class ;
  rdfs:label "allantois morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the fetal membrane between the chorion and the amnion and yolk sac, which contributes to the formation of the umbilical cord and placental blood vessels in mammals." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0010667 a rdfs:Class ;
  rdfs:label "phagocytosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the endocytosis process that results in the engulfment of external particulate material by phagocytes. The particles are initially contained within phagocytic vacuoles (phagosomes), which then fuse with primary lysosomes to effect digestion of the particles." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0004435 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell electromotility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the motility of the cochlear OHCs in response to electrical stimulation; normally, the motile response (i.e. rapid change in length and stiffness of OHCs) is closely coupled to the changing transduction current and provides a region-specific amplification in the movement of the spiral organ that enhances transduction at the IHCs in that specific region of the cochlear spiral, increasing both sensitivity and specificity; electromotility is believed to arise through voltage-gated conformational changes in motor protein (prestin) or proteins located in the lateral wall of the OHC." ;
  rdfs:subClassOf obo:VT_0004434 .

obo:VT_0005203 a rdfs:Class ;
  rdfs:label "trabecular meshwork morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the pore-like structure surrounding the entire circumference of the anterior chamber through which aqueous humor circulates." ;
  rdfs:subClassOf obo:VT_0004221 .

obo:VT_0011191 a rdfs:Class ;
  rdfs:label "milk acidity/alkalinity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of milk to resist changes in pH (buffering capacity)." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0002695 a rdfs:Class ;
  rdfs:label "blood glucagon amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a polypeptide hormone secreted by the pancreas that increases the blood glucose level by stimulating the liver to change stored glycogen to glucose; opposes the action of insulin." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0000907 a rdfs:Class ;
  rdfs:label "trigeminal V mesencephalic nucleus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of sensory neurons residing in a long, narrow plate in the midbrain; axons pass with the trigeminal nerve." ;
  rdfs:subClassOf obo:VT_0000906 .

obo:VT_0010229 a rdfs:Class ;
  rdfs:label "ileum crypt of Lieberkuhn depth" ;
  rdfs:comment "The distance between the inferior and superior edges of the straight tubular glands located in the epithelial layer of the intestine between the bases of the villi of the ileum." ;
  rdfs:subClassOf obo:VT_0000490 , obo:VT_0002581 , obo:VT_0010223 .

obo:VT_0008749 a rdfs:Class ;
  rdfs:label "peripheral T cell anergy trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the processes of T cell anergy, a state of functional inactivation which is part of tolerance induction, that occur outside the thymus." ;
  rdfs:subClassOf obo:VT_0008747 .

obo:VT_0010258 a rdfs:Class ;
  rdfs:label "colostrum immunoglobulin A amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of the principal immunoglobulin in exocrine secretions." ;
  rdfs:subClassOf obo:VT_0010257 .

obo:VT_0003759 a rdfs:Class ;
  rdfs:label "palate width" ;
  rdfs:comment "The distance from side to side of the roof of the oral cavity." ;
  rdfs:subClassOf obo:VT_0003755 .

obo:VT_0002784 a rdfs:Class ;
  rdfs:label "Sertoli cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells of the seminiferous tubules that create the blood-testes barrier and enable spermatogenesis." ;
  rdfs:subClassOf obo:VT_0002216 .

obo:VT_0002429 a rdfs:Class ;
  rdfs:label "blood cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the cells found in the blood." ;
  rdfs:subClassOf obo:VT_0010250 .

obo:VT_0008695 a rdfs:Class ;
  rdfs:label "interleukin-3 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a multilineage cell growth factor secreted by lymphocytes, epithelial cells and astrocytes which stimulates clonal proliferation and differentiation of various types of blood and tissue cells." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0004223 a rdfs:Class ;
  rdfs:label "trabecular meshwork size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the pore-like structure surrounding the entire circumference of the anterior chamber through which aqueous humor circulates." ;
  rdfs:subClassOf obo:VT_0005203 .

obo:VT_0010992 a rdfs:Class ;
  rdfs:label "blood 3-methylhistidine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a methylhistidine in which the methyl group is located at N-3." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0011215 a rdfs:Class ;
  rdfs:label "blood interleukin-8 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine produced by a variety of cell types that plays a role in the regulation of the acute inflammatory response; it induces chemotaxis of neutrophils and other inflammatory cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0003520 a rdfs:Class ;
  rdfs:label "labia minora morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the folds of skin which form the inner lips (labia minora) on both sides of the vaginal opening." ;
  rdfs:subClassOf obo:VT_0003511 .

obo:VT_0005392 a rdfs:Class ;
  rdfs:label "nociception system trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the series of events required for an organism to sense pain, or to the morphology of the structures involved in any of these events." ;
  rdfs:subClassOf obo:VT_0015095 .

obo:VT_0004427 a rdfs:Class ;
  rdfs:label "vestibular labyrinth morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the portion of the membranous labyrinth concerned with the sense of equilibration (vs. the cochlear labyrinth, which is concerned with the sense of hearing) and innervated by the vestibular nerve; it is located within the semicircular canals and vestibule of the bony labyrinth, and consists of the utricle, saccule, and the semicircular, utriculosaccular, and endolymphatic ducts." ;
  rdfs:subClassOf obo:VT_0000035 .

obo:VT_0004235 a rdfs:Class ;
  rdfs:label "masseter muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the masticatory muscle of the posterior cheek with origin from the inferior border and medial surface of the zygomatic arch, with insertion into the lateral surface of the ramus of the mandible, with nerve supply from the masseteric nerve, and whose action closes the jaw during chewing." ;
  rdfs:subClassOf obo:VT_0004234 .

obo:VT_0002864 a rdfs:Class ;
  rdfs:label "ocular fundus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the posterior concave interior of the eye, consisting of the retina, the choroid, the posterior segment of the sclera, the optic disk, and blood vessels." ;
  rdfs:subClassOf obo:VT_0005195 .

obo:VT_0002268 a rdfs:Class ;
  rdfs:label "terminal bronchiole morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the last conducting structure of non-respiratory bronchioles; after this point, the airways have alveoli in their walls." ;
  rdfs:subClassOf obo:VT_0002267 .

obo:VT_0004286 a rdfs:Class ;
  rdfs:label "internal auditory canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the canal beginning at the opening of the internal acoustic meatus in the posterior cranial fossa, passing laterally through the petrous portion of the temporal bone to end at the fundus, where a thin plate of bone separates it from the vestibule; it gives passage to the facial and vestibulocochlear nerves together with the labyrinthine artery and veins." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0002375 a rdfs:Class ;
  rdfs:label "thymus medulla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the inner area of thymus lobules." ;
  rdfs:subClassOf obo:VT_0002367 .

obo:VT_0003149 a rdfs:Class ;
  rdfs:label "tectorial membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the overlaying membrane of cochlear duct, an extracellular matrix of the inner ear that contacts the stereocilia bundles of specialized sensory hair cells; sound induces movement of these hair cells relative to the tectorial membrane, deflects the stereocilia, and leads to fluctuations in hair cell membrane potential, transducing sound into electrical signals." ;
  rdfs:subClassOf obo:VT_0003169 .

obo:VT_0001502 a rdfs:Class ;
  rdfs:label "behavioral circadian rhythm trait" ;
  rdfs:comment "Any measurable or observable behavioral characteristic related to a daily biological activity cycle." ;
  rdfs:subClassOf obo:VT_0010455 .

obo:VT_0010226 a rdfs:Class ;
  rdfs:label "ileum muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the muscle layer of the portion of the small intestine that extends from the jejunum to the colon." ;
  rdfs:subClassOf obo:VT_0002581 .

obo:VT_0010408 a rdfs:Class ;
  rdfs:label "bulbourethral gland physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the gland in males that lies along the prostate gland and secretes a fluid component of the seminal fluid into the urethra." ;
  rdfs:subClassOf obo:VT_0003698 .

obo:VT_0003698 a rdfs:Class ;
  rdfs:label "male reproductive system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the functions of or processes in the male organs associated with producing offspring." ;
  rdfs:subClassOf obo:VT_0001919 .

obo:VT_0011122 a rdfs:Class ;
  rdfs:label "digit integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the fingers or toes, or their corresponding parts in other vertebrates." ;
  rdfs:subClassOf obo:VT_0002110 , obo:VT_0011224 .

obo:VT_0010286 a rdfs:Class ;
  rdfs:label "motor nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the nerve fibers that convey impulses from the central nervous system to stimulate muscle contraction or glandular secretion." ;
  rdfs:subClassOf obo:VT_0010142 .

obo:VT_0000733 a rdfs:Class ;
  rdfs:label "muscular system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0005369 .

obo:VT_0001277 a rdfs:Class ;
  rdfs:label "vibrissa organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of the stiff hairs projecting from the face, which act as touch receptors." ;
  rdfs:subClassOf obo:VT_0002098 .

obo:VT_0010316 a rdfs:Class ;
  rdfs:label "milk fatty acid C16:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a sixteen-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0005231 a rdfs:Class ;
  rdfs:label "brachial lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph nodes located along the brachial vein that receive drainage from most of the free upper limb and send efferent vessels to the central axillary lymph nodes." ;
  rdfs:subClassOf obo:VT_0002340 .

obo:VT_0000960 a rdfs:Class ;
  rdfs:label "sensory ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the clusters of neurons in the somatic peripheral nervous system which contain the cell bodies of sensory nerve axons, interneurons, and non-neuonal supporting cells." ;
  rdfs:subClassOf obo:VT_0000959 .

obo:VT_0002234 a rdfs:Class ;
  rdfs:label "pharynx morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the passage between the mouth and the posterior nares and the larynx and esophagus." ;
  rdfs:subClassOf obo:VT_0002132 .

obo:VT_0005169 a rdfs:Class ;
  rdfs:label "male meiosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of nuclear division that results in sperm with one half the normal chromosome number of the original cell." ;
  rdfs:subClassOf obo:VT_0001156 , obo:VT_0001930 .

obo:VT_0008550 a rdfs:Class ;
  rdfs:label "blood interferon-beta amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of one of the type I interferons produced by fibroblasts in response to stimulation by live or inactivated virus or by double-stranded RNA with antiviral, antiproliferative, and immunomodulating activity." ;
  rdfs:subClassOf obo:VT_0008548 .

obo:VT_0002723 a rdfs:Class ;
  rdfs:label "obsolete immune serum protein activity trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the degree of function or response of circulating immune proteins." .

obo:VT_0003396 a rdfs:Class ;
  rdfs:label "embryonic hematopoiesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the development of primarily large, nucleated erythroblasts as well as some megakaryocytes and primitive macrophages occurring in blood islands in the yolk sac, generally occurs from E7-E11 in the mouse and through 10 weeks in humans." ;
  rdfs:subClassOf obo:VT_0005380 , obo:VT_0010182 .

obo:VT_0001002 a rdfs:Class ;
  rdfs:label "taste bud morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small sensory organs located in the tongue that contain gustatory receptor cells, basal cells, and supporting cells." ;
  rdfs:subClassOf obo:VT_0005500 .

obo:VT_0011380 a rdfs:Class ;
  rdfs:label "excreta water amount" ;
  rdfs:comment "The proportion, quantity, or volume of this clear, odorless, tasteless liquid in an organism substance that is the product of an excretion process that will be eliminated from the body. An excretion process is elimination by an organism of the waste products that arise as a result of metabolic activity." ;
  rdfs:subClassOf obo:VT_0011378 .

obo:VT_0001290 a rdfs:Class ;
  rdfs:label "time of eyelid opening" ;
  rdfs:comment "The stage of development when the eyelids first separate." ;
  rdfs:subClassOf obo:VT_0001340 .

obo:VT_0010569 a rdfs:Class ;
  rdfs:label "quadriceps morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of four muscles (rectus femoris, vastus intermedius, vastus lteralis, and vastus medialis) which extend down the front of the thigh and are the major extensors of the knee joint." ;
  rdfs:subClassOf obo:VT_0010107 .

obo:VT_0004302 a rdfs:Class ;
  rdfs:label "Deiters cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the supporting cells of the spiral organ which are attached to the basement membrane and receive the hair cells between their free extremities." ;
  rdfs:subClassOf obo:VT_0004300 .

obo:VT_0002151 a rdfs:Class ;
  rdfs:label "neural tube morphology/development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, pattern, or morphology or physiology during formation and differentiation of the epithelial tube formed from the neuroectoderm of the early embryo by the closure of the neural groove; develops into the spinal cord and brain." ;
  rdfs:subClassOf obo:VT_0003861 .

obo:VT_0001131 a rdfs:Class ;
  rdfs:label "ovarian follicle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the ovarian structure containing an oocyte." ;
  rdfs:subClassOf obo:VT_0001126 .

obo:VT_0006282 a rdfs:Class ;
  rdfs:label "posterior horn morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the dorsal gray matter of the spinal cord." ;
  rdfs:subClassOf obo:VT_0000955 .

obo:VT_0004123 a rdfs:Class ;
  rdfs:label "impulse conducting system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the impulse-conducting system composed of modified cardiac muscle and having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0007024 a rdfs:Class ;
  rdfs:label "heart left atrium configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the left upper chamber of the heart." ;
  rdfs:subClassOf obo:VT_0000020 .

obo:VT_0002111 a rdfs:Class ;
  rdfs:label "tail morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the appendage at the caudal end of the vertebral column in some vertebrates including remnant structures in species that normally lack a tail." ;
  rdfs:subClassOf obo:VT_0015071 .

obo:VT_0010522 a rdfs:Class ;
  rdfs:label "axillary lymph node cell quantity" ;
  rdfs:comment "The proportion or number of cells in the lymph nodes located around the axillary vein that receive lymphatic drainage from the upper or forelimb, scapular region and pectoral region." ;
  rdfs:subClassOf obo:VT_0002340 .

obo:VT_0008637 a rdfs:Class ;
  rdfs:label "blood interleukin-1 alpha amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an interleukin-1 subtype that occurs as a membrane-bound pro-protein form that is cleaved by proteases to form a secreted mature form; both membrane-bound and secreted forms of interleukin-1alpha are biologically active." ;
  rdfs:subClassOf obo:VT_0008589 .

obo:VT_0010271 a rdfs:Class ;
  rdfs:label "colostrum leptin amount" ;
  rdfs:comment "The proportion, quantity, or volume in colostrum of the peptide hormone secreted by white adipocytes and believed to regulate food intake and energy balance." ;
  rdfs:subClassOf obo:VT_0010269 .

obo:VT_1000637 a rdfs:Class ;
  rdfs:label "functional nipple quantity" ;
  rdfs:comment "The proportion or number of nipples capable of secreting milk." ;
  rdfs:subClassOf obo:VT_1000206 .

obo:VT_1000761 a rdfs:Class ;
  rdfs:label "muscle nitrogen amount" ;
  rdfs:comment "The proportion, quantity, or volume of this element present in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0004075 a rdfs:Class ;
  rdfs:label "Schwann cell precursor quantity" ;
  rdfs:comment "The proportion or number of the progenitors of cells that sheath the axons of the peripheral nervous system." ;
  rdfs:subClassOf obo:VT_0004074 .

obo:VT_0000838 a rdfs:Class ;
  rdfs:label "cochlear hair cell inter-stereocilial links trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, or pattern of the morphologically and biochemically distinct link types that extend between the stereocilia of cochlear hair bundles; link types can be distinguished by their relative sensitivities to treatment with calcium chelators and the protease subtilisin." ;
  rdfs:subClassOf obo:VT_0000816 .

obo:VT_0008200 a rdfs:Class ;
  rdfs:label "follicular dendritic cell quantity" ;
  rdfs:comment "The proportion or number of cells with extensive dendritic processes found in the B cell areas (primary follicles and germinal centers) of lymphoid tissue; follicular dendritic cells have Fc receptors and C3b receptors, and hold antigen in the form of immune complexes on their surfaces for long periods and can present antigen to B cells during an immune response." ;
  rdfs:subClassOf obo:VT_0008196 , obo:VT_0010191 .

obo:VT_0000085 a rdfs:Class ;
  rdfs:label "blood-cerebrospinal fluid barrier morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the group of barriers and transport systems in the choroid plexus located in the lateral, third, and fourth brain ventricles that controls the entrance of substances into the cerebrospinal fluid from the blood." ;
  rdfs:subClassOf obo:VT_0001614 .

obo:VT_1000522 a rdfs:Class ;
  rdfs:label "adipose fatty acid cis-9,cis-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume of an omega-6 unsaturated fatty acid (C18H32O2), with two carbon-carbon double bonds, present in a sample of fat." ;
  rdfs:subClassOf obo:VT_0005285 .

obo:VT_1000111 a rdfs:Class ;
  rdfs:label "bone mass" ;
  rdfs:comment "The amount of matter in osseous tissue forming a part of the skeleton; consists of a dense outer layer surrounded by the periosteum, and an inner spongy substance." ;
  rdfs:subClassOf obo:VT_0010003 .

obo:VT_0000866 a rdfs:Class ;
  rdfs:label "cerebellum vermis cell quantity" ;
  rdfs:comment "The proportion or number of cells in the narrow medial zone between the two hemispheres of the cerebellum that is delimited by two longitudinal furrows; it may be continuous with the cerebellar hemispheres in some areas of the cerebellum, e.g., dorsally, or separated by deeper fissures in others (e.g., ventrally); it receives inputs from the spinocerebellar tracts which carry to the vermis information on the position and balance of the torso, and it sends projections to the fastigial nucleus of the cerebellum, which then sends output to the vestibular nuclei." ;
  rdfs:subClassOf obo:VT_0000864 .

obo:VT_0001724 a rdfs:Class ;
  rdfs:label "extraembryonic endoderm morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the endoderm of the extraembryonic tissue that appears prior to gastrulation and performs critical functions during embryogenesis including nutrient uptake and transport from the mother to the embryo." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0003671 a rdfs:Class ;
  rdfs:label "eyelid aperture" ;
  rdfs:comment "The distance from the upper eyelid to the lower eyelid." ;
  rdfs:subClassOf obo:VT_0001340 .

obo:VT_0010305 a rdfs:Class ;
  rdfs:label "milk unsaturated fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of straight chain monocarboxylic acids with one or more double or triple carbon-carbon bonds found in milk fat." ;
  rdfs:subClassOf obo:VT_0010303 .

obo:VT_0000107 a rdfs:Class ;
  rdfs:label "frontal bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone forming the forehead and roof of the eye orbit." ;
  rdfs:subClassOf obo:VT_0000076 , obo:VT_0005246 , obo:VT_0005274 .

obo:VT_0004021 a rdfs:Class ;
  rdfs:label "rod electrophysiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the rhodopsin-containing photoreceptor cells of the retina." ;
  rdfs:subClassOf obo:VT_0005551 .

obo:VT_0002733 a rdfs:Class ;
  rdfs:label "thermal nociception trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to sense pain elicited by thermal stimulation." ;
  rdfs:subClassOf obo:VT_0015100 .

obo:VT_0010786 a rdfs:Class ;
  rdfs:label "mesenteric artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the arteries which arise from the abdominal aorta and distribute to most of the intestines." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0002241 a rdfs:Class ;
  rdfs:label "laryngeal mucosa goblet cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial cells lining the larynx, which produce mucins." ;
  rdfs:subClassOf obo:VT_0002261 .

obo:VT_0011342 a rdfs:Class ;
  rdfs:label "vertebra mass" ;
  rdfs:comment "The amount of matter in the bony segments of the spinal column." ;
  rdfs:subClassOf obo:VT_0011341 .

obo:VT_0003231 a rdfs:Class ;
  rdfs:label "placenta vascular morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the vessels of the organ of metabolic interchange between fetus and mother." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_0010699 a rdfs:Class ;
  rdfs:label "blood LDL triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the triglyceride in the lipoprotein complex that transports triglyceride and cholesterol out of the arteries and around the body, for use by various tissues in normal bodily functions." ;
  rdfs:subClassOf obo:VT_0002644 .

obo:VT_0011174 a rdfs:Class ;
  rdfs:label "prenatal growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size or mass of an organism before birth." ;
  rdfs:subClassOf obo:VT_0100007 .

obo:VT_0010110 a rdfs:Class ;
  rdfs:label "heart muscle physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the striated, involuntary muscle comprising the myocardium." ;
  rdfs:subClassOf obo:VT_0002106 , obo:VT_0010301 .

obo:VT_0002459 a rdfs:Class ;
  rdfs:label "B cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in lymphocytes of B lineage with the phenotype CD19-positive and capable of B cell-mediated immunity." ;
  rdfs:subClassOf obo:VT_0003945 .

obo:VT_0010737 a rdfs:Class ;
  rdfs:label "skin molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the membranous protective covering of the body." ;
  rdfs:subClassOf obo:VT_0002096 .

obo:VT_0011146 a rdfs:Class ;
  rdfs:label "blood interleukin-25 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine which is a member of the IL-17 cytokine subfamily and is a pro-inflammatory cytokine favoring the Th2-type immune response." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0000254 a rdfs:Class ;
  rdfs:label "cerebrospinal fluid amount" ;
  rdfs:comment "The proportion, quantity, or volume of the serum-like fluid that circulates through the ventricles of the brain, the cavity of the spinal cord, and the subarachnoid space, functioning in shock absorption." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0015068 a rdfs:Class ;
  rdfs:label "surface structure physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organism subdivision which is the collection of anatomical structures on the body surface." ;
  rdfs:subClassOf obo:VT_0015052 .

obo:VT_1000465 a rdfs:Class ;
  rdfs:label "intermuscular adipose amount" ;
  rdfs:comment "The proportion, quantity, or volume of fat-storing tissue present between the muscles." ;
  rdfs:subClassOf obo:VT_0001781 .

obo:VT_0003668 a rdfs:Class ;
  rdfs:label "periodontal ligament morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fibrous connective tissue that surrounds the root of a tooth, separating it from and attaching it to the alveolar bone; normally extends from the base of the gingival mucosa to the fundus of the bony socket, and its main function is to hold the tooth in its socket." ;
  rdfs:subClassOf obo:VT_0002100 .

obo:VT_0010753 a rdfs:Class ;
  rdfs:label "urine urea amount" ;
  rdfs:comment "The proportion, quantity, or volume in urine of this product of protein catabolism." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0010033 a rdfs:Class ;
  rdfs:label "complement protein amount" ;
  rdfs:comment "The proportion, quantity or volume of any of the cascade of circulating proteins that act together to attack extracellular pathogens." ;
  rdfs:subClassOf obo:VT_0010034 , obo:VT_0010927 .

obo:VT_0010192 a rdfs:Class ;
  rdfs:label "CD4-negative, CD8-negative, alpha-beta intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD4-negative, CD8-negative, alpha-beta T cell present in columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0002407 , obo:VT_0008399 .

obo:VT_0010323 a rdfs:Class ;
  rdfs:label "milk omega-6 fatty acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of unsaturated fatty acids in which the first unsaturated bond is in the sixth position from the omega carbon (C18:2, n-6; C18:3, n-6; C20:2, n-6; C20:3, n-6; C20:4, n-6; C22:2, n-6; C22:4, n-6; C22:5, n-6)." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0002212 a rdfs:Class ;
  rdfs:label "secondary sex determination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the appearance and development of traits, other than the sex organs, that distinguish the sexes." ;
  rdfs:subClassOf obo:VT_0002210 .

obo:VT_0005112 a rdfs:Class ;
  rdfs:label "anterior horn morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the ventral gray column of the spinal cord." ;
  rdfs:subClassOf obo:VT_0000955 .

obo:VT_0011139 a rdfs:Class ;
  rdfs:label "superior cervical ganglion molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases or other substances in the group of neurons that is the largest of the sympathetic trunk; normally lies at the base of the skull and innervates the head and neck." ;
  rdfs:subClassOf obo:VT_0001011 .

obo:VT_0000163 a rdfs:Class ;
  rdfs:label "cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the nonvascular, resilient, flexible connective tissue found primarily in joints, walls of the thorax, and tubular structures, but which also comprises most of the skeleton in early fetal life; some species have skeletons that are completely composed of cartilage which is never ossified." ;
  rdfs:subClassOf obo:VT_0001248 .

obo:VT_0004206 a rdfs:Class ;
  rdfs:label "dermomyotome development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the portion of the embryonic somite that remains after migration of the sclerotomic tissue." ;
  rdfs:subClassOf obo:VT_0000729 .

obo:VT_0002650 a rdfs:Class ;
  rdfs:label "ameloblast development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the epithelial cells of the inner layer of the enamel organ of the developing tooth during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000116 .

obo:VT_0003799 a rdfs:Class ;
  rdfs:label "macrophage migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement of macrophages from point to point." ;
  rdfs:subClassOf obo:VT_0002451 , obo:VT_0003156 .

obo:VT_0010775 a rdfs:Class ;
  rdfs:label "liver ornithine decarboxylase activity" ;
  rdfs:comment "The degree of function or response in the liver of the enzyme that catalyzes the decarboxylation of ornithine (a product of the urea cycle) to form putrescine, the rate-limiting and first committed step in polyamine synthesis." ;
  rdfs:subClassOf obo:VT_0010774 .

obo:VT_0003954 a rdfs:Class ;
  rdfs:label "Reichert's membrane morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the extraembryonic basement membrane in rodents that forms on the inner surface of the trophectoderm and is secreted by the distal endoderm; required for the maternofetal exchange of nutrients and is important for the post-gastrulation development." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0010424 a rdfs:Class ;
  rdfs:label "inguinal fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue found in the groin." ;
  rdfs:subClassOf obo:VT_0005336 .

obo:VT_0010704 a rdfs:Class ;
  rdfs:label "blood LDL particle size" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the low density lipoprotein particles found in whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0010702 .

obo:VT_0002059 a rdfs:Class ;
  rdfs:label "seminal gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one of the two folded, sac shaped glands that is a diverticulum of the ductus deferens." ;
  rdfs:subClassOf obo:VT_0000653 , obo:VT_0001145 .

obo:VT_0010656 a rdfs:Class ;
  rdfs:label "comb morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the vascular, red cutaneous structure attached in a sagittal plane to the dorsum of the skull of domestic fowl." ;
  rdfs:subClassOf obo:VT_0010007 , obo:VT_0015071 .

obo:VT_0001020 a rdfs:Class ;
  rdfs:label "L4 ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of nerve cell bodies located on the dorsal spinal roots within the vertebral column at the level of the fourth lumbar vertebra." ;
  rdfs:subClassOf obo:VT_0000964 , obo:VT_0001019 .

obo:VT_0008167 a rdfs:Class ;
  rdfs:label "B-1a B cell quantity" ;
  rdfs:comment "The proportion or number of the B-1 B cell subset bearing the CD5 surface marker." ;
  rdfs:subClassOf obo:VT_0004976 , obo:VT_0008164 .

obo:VT_0004212 a rdfs:Class ;
  rdfs:label "salty taste sensitivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to perceive a particular flavor or suggestion of something salty by the chemoreceptors of the gustatory system." ;
  rdfs:subClassOf obo:VT_0001986 .

obo:VT_4000007 a rdfs:Class ;
  rdfs:label "coat/hair physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes in the fine, keratinized filamentous growths arising from the epidermis of mammals." ;
  rdfs:subClassOf obo:VT_0100019 .

obo:VT_0010841 a rdfs:Class ;
  rdfs:label "medulla oblongata dihydroxyphenylacetic acid (DOPAC) amount" ;
  rdfs:comment "The proportion, quantity or volume in the medulla oblongata (the region of the brainstem that lies directly above the spinal cord and controls vital autonomic functions) of the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010834 , obo:VT_0010872 , obo:VT_0011252 .

obo:VT_0010128 a rdfs:Class ;
  rdfs:label "sensory nerve fiber quantity" ;
  rdfs:comment "The proportion or number of fibers of afferent nerves conveying impulses processed by the central nervous system." ;
  rdfs:subClassOf obo:VT_0010143 .

obo:VT_0002716 a rdfs:Class ;
  rdfs:label "preputial gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the modified sebaceous glands of the corona and neck of the glans penis." ;
  rdfs:subClassOf obo:VT_0000655 , obo:VT_0002717 .

obo:VT_0010190 a rdfs:Class ;
  rdfs:label "basophil development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of granular leukocytes that are characterized by pale-staining, lobate nucleus and cytoplasm and contain dark-staining granules of varying size and stainable by basic dyes." ;
  rdfs:subClassOf obo:VT_0008111 .

obo:VT_0004943 a rdfs:Class ;
  rdfs:label "B cell positive selection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to any process by which B cells are selected to survive based on signaling through the B cell antigen receptor." ;
  rdfs:subClassOf obo:VT_0004942 .

obo:VT_0006099 a rdfs:Class ;
  rdfs:label "granule layer thickness" ;
  rdfs:comment "The distance between the surfaces of the innermost cortical layer of the cerebellum that contains granule cells." ;
  rdfs:subClassOf obo:VT_0000886 .

obo:VT_0001143 a rdfs:Class ;
  rdfs:label "vaginal opening size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the external vaginal opening." ;
  rdfs:subClassOf obo:VT_0001142 .

obo:VT_0010419 a rdfs:Class ;
  rdfs:label "CD8-positive, CD25-positive, alpha-beta regulatory T cell quantity" ;
  rdfs:comment "The proportion or number of the subset of CD8-positive, alpha-beta-positive, FoxP3-positive T cells with suppressor function." ;
  rdfs:subClassOf obo:VT_0010418 .

obo:VT_0004220 a rdfs:Class ;
  rdfs:label "peripheral nervous system regeneration trait" ;
  rdfs:comment "Any measurable characteristic related to the ability of peripheral nervous system tissue to regenerate following injury or disease." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0011022 a rdfs:Class ;
  rdfs:label "eye ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the eye. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011021 .

obo:VT_0002741 a rdfs:Class ;
  rdfs:label "olfactory bulb size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the forebrain region that coordinates neuronal signaling involved in the perception of smell; it receives input from the sensory neurons and outputs to the olfactory cortex." ;
  rdfs:subClassOf obo:VT_0000819 .

obo:VT_0003478 a rdfs:Class ;
  rdfs:label "nerve fiber response threshold" ;
  rdfs:comment "The point at which a stimulus first elicits a recordable response recorded in a single or several nerve fiber(s)." ;
  rdfs:subClassOf obo:VT_0003477 .

obo:VT_0011237 a rdfs:Class ;
  rdfs:label "right common carotid artery ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the rightmost of the two common carotid arteries, originating from in the neck from the brachiocephalic trunk. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011235 .

obo:VT_0010435 a rdfs:Class ;
  rdfs:label "response to bacterial infection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter immune processes or function as a result of invasion and multiplication of bacteria (unicellular, prokaryotic organisms characterized by peptidoglycan cell walls) in the tissues, or of exposure to components of or toxins produced by bacteria." ;
  rdfs:subClassOf obo:VT_0010434 .

obo:VT_0000067 a rdfs:Class ;
  rdfs:label "obsolete blood morphology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the fluid that circulates through the heart, arteries, veins, and capillaries, carrying oxygen and nutritive materials and removing waste products and carbon dioxide." .

obo:VT_0011317 a rdfs:Class ;
  rdfs:label "lumbar dorsal root ganglion ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the group of nerve cell bodies located on the dorsal spinal roots within the vertebral column at the level of the lumbar vertebrae. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011037 .

obo:VT_0010688 a rdfs:Class ;
  rdfs:label "milk osteopontin amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of a secreted phosphoprotein, produced by many epithelial cell types, which is highly negatively charged and frequently associated with mineralization processes." ;
  rdfs:subClassOf obo:VT_1000165 .

obo:VT_0015010 a rdfs:Class ;
  rdfs:label "white adipocyte lipid droplet size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the single large lipid droplet or vacuole of the fat cells with light coloration and few mitochondria." ;
  rdfs:subClassOf obo:VT_0015009 .

obo:VT_0010174 a rdfs:Class ;
  rdfs:label "obsolete C7 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C7." .

obo:VT_0011170 a rdfs:Class ;
  rdfs:label "parathyroid gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in in one of the two small, paired endocrine glands, usually found embedded in the connective tissue capsule on the posterior surface of the thyroid gland. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011169 .

obo:VT_0001216 a rdfs:Class ;
  rdfs:label "epidermis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the superficial epithelial portion of the skin." ;
  rdfs:subClassOf obo:VT_4000009 .

obo:VT_0003359 a rdfs:Class ;
  rdfs:label "hypaxial muscle cell quantity" ;
  rdfs:comment "The proportion or number of cells in any of the muscles derived from the lateral myotome and lateral portion of the dermomyotome; these include the thoracic intercostal and abdominal muscles, limb muscles and superficial back muscles, as well as the diaphragm and the tip of the tongue." ;
  rdfs:subClassOf obo:VT_0003358 .

obo:VT_0002246 a rdfs:Class ;
  rdfs:label "frontal sinus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of these paired air spaces within the frontal bone." ;
  rdfs:subClassOf obo:VT_0002240 .

obo:VT_0003826 a rdfs:Class ;
  rdfs:label "Mullerian duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the transient embryonic tubes that empty into the cloaca and in the female develop into the oviducts, uterus, and vagina." ;
  rdfs:subClassOf obo:VT_0003936 .

obo:VT_0003381 a rdfs:Class ;
  rdfs:label "vitreal fibrous tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fibrous tissue in the vitreous body of the eye." ;
  rdfs:subClassOf obo:VT_0002699 .

obo:VT_0000125 a rdfs:Class ;
  rdfs:label "heart tube morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the primitive epithelial cardiac tube before the division into the chambers of the mature heart." ;
  rdfs:subClassOf obo:VT_0000267 .

obo:VT_0010103 a rdfs:Class ;
  rdfs:label "parotid salivary gland cholinergic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic arrangement of nerve fibers that utilize acetylcholine as a neurotransmitter and transmit impulses to the exocrine gland lateral to the jaw that secretes saliva." ;
  rdfs:subClassOf obo:VT_0010041 .

obo:VT_0000978 a rdfs:Class ;
  rdfs:label "obsolete hair-tylotrich cell innervation pattern trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to hair tylotrich cells." .

obo:VT_0011241 a rdfs:Class ;
  rdfs:label "leukocyte molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the nucleated cells of the myeloid or lymphoid lineages, found in blood or other tissue." ;
  rdfs:subClassOf obo:VT_0008246 .

obo:VT_0003693 a rdfs:Class ;
  rdfs:label "embryo hatching trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the mammalian embryo to break out of the zona pellucida, the thick, solid, transparent outer membrane that surrounds the developing ovum and embryo prior to implantation." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0003027 a rdfs:Class ;
  rdfs:label "blood pH regulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of the buffer systems of the blood in combination with the respiratory and renal systems that control the relative acidity or alkalinity of the blood, as measured by the concentration of the hydrogen ion." ;
  rdfs:subClassOf obo:VT_0004043 , obo:VT_0015078 .

obo:VT_0000884 a rdfs:Class ;
  rdfs:label "Purkinje cell layer lamination integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the layer of large neuron cell bodies between the molecular and granular layers of the cerebellum." ;
  rdfs:subClassOf obo:VT_0000875 .

obo:VT_0015028 a rdfs:Class ;
  rdfs:label "organ of Corti supporting cell differentiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process whereby relatively unspecialized cells acquire the specialized structural and/or functional features characteristic of the highly differentiated epithelial cells with distinctive morphological features that surround the hair cells in the organ of Corti." ;
  rdfs:subClassOf obo:VT_0015111 .

obo:VT_0011179 a rdfs:Class ;
  rdfs:label "corpus cavernosum penis ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in one of the columns of erectile tissue forming the dorsum and sides of the penis. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011178 .

obo:VT_0000820 a rdfs:Class ;
  rdfs:label "choroid plexus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the network formed by blood vessels and the tela choroidea which secretes CSF into the ventricular spaces." ;
  rdfs:subClassOf obo:VT_0002200 .

obo:VT_1000420 a rdfs:Class ;
  rdfs:label "head mass" ;
  rdfs:comment "The amount of matter in the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0000002 .

obo:VT_0005033 a rdfs:Class ;
  rdfs:label "trophoblast giant cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells covering the blastocyst that erode the uterine mucosa and contribute to the formation of the placenta." ;
  rdfs:subClassOf obo:VT_0005031 .

obo:VT_0003253 a rdfs:Class ;
  rdfs:label "bile duct size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bile ducts." ;
  rdfs:subClassOf obo:VT_0002928 .

obo:VT_0005308 a rdfs:Class ;
  rdfs:label "blood ammonia amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this colorless alkaline gas, formed in the body during organic decomposition." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0015063 a rdfs:Class ;
  rdfs:label "parasympathetic postganglionic fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any or all of the cholinergic axonal fibers projecting from a parasympathetic ganglion to an effector organ." ;
  rdfs:subClassOf obo:VT_0001033 .

obo:VT_0001091 a rdfs:Class ;
  rdfs:label "outer hair cell stereocilia size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the nonmotile, actin-filled specialized microvilli (stereocilia) which are normally arrayed on cochlear outer hair cells." ;
  rdfs:subClassOf obo:VT_0000894 , obo:VT_0001028 .

obo:VT_0011196 a rdfs:Class ;
  rdfs:label "milk immunoglobulin G1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of immunoglobulin class G1." ;
  rdfs:subClassOf obo:VT_0011195 .

obo:VT_0011223 a rdfs:Class ;
  rdfs:label "hoof morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tip of a toe of an ungulate mammal, strengthened by a thick horny (keratin) covering. The hoof consists of a hard or rubbery sole, and a hard wall formed by a thick nail rolled around the tip of the toe." ;
  rdfs:subClassOf obo:VT_0004271 .

obo:VT_0010527 a rdfs:Class ;
  rdfs:label "associative learning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of an organism to change the frequency or form of its actions or reactions as a result of the influence of the environment." ;
  rdfs:subClassOf obo:VT_0002063 .

obo:VT_0000259 a rdfs:Class ;
  rdfs:label "capillary permeability trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of gases, liquids, or solutes to pass through the capillary wall." ;
  rdfs:subClassOf obo:VT_0000190 .

obo:VT_0000588 a rdfs:Class ;
  rdfs:label "tail diameter" ;
  rdfs:comment "The distance across the appendage at the caudal end of the vertebral column." ;
  rdfs:subClassOf obo:VT_0003456 .

obo:VT_0000260 a rdfs:Class ;
  rdfs:label "hemostasis trait" ;
  rdfs:comment "Any measurable functional characteristic related to the process of prevention of blood loss." ;
  rdfs:subClassOf obo:VT_0000171 .

obo:VT_0000631 a rdfs:Class ;
  rdfs:label "neuroendocrine gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organized aggregations of cells that function as secretory or excretory organs and that release hormones in response to neural stimuli." ;
  rdfs:subClassOf obo:VT_0002163 .

obo:VT_0015043 a rdfs:Class ;
  rdfs:label "milk amount" ;
  rdfs:comment "The proportion, quantity, or volume of milk produced by the mammary gland." ;
  rdfs:subClassOf obo:VT_0003838 , obo:VT_0004047 .

obo:VT_0002085 a rdfs:Class ;
  rdfs:label "embryonic cell/tissue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any cell type or tissue in the embryo." ;
  rdfs:subClassOf obo:VT_0005380 .

obo:VT_0004163 a rdfs:Class ;
  rdfs:label "adenophysis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anterior part of the pituitary that secretes a variety of hormones; its function is regulated by the hypothalamus." ;
  rdfs:subClassOf obo:VT_0000633 .

obo:VT_0002492 a rdfs:Class ;
  rdfs:label "blood immunoglobulin E amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin that attaches to mast cells in the respiratory and intestinal tracts and plays a major role in allergic reactions." ;
  rdfs:subClassOf obo:VT_0002460 .

obo:VT_2000001 a rdfs:Class ;
  rdfs:label "capillary blood pressure trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood pressure in the capillaries." ;
  rdfs:subClassOf obo:VT_0000183 .

obo:VT_0010087 a rdfs:Class ;
  rdfs:label "ischium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lower, posterior part of the hip bone, which fuses with the ilium and pubis." ;
  rdfs:subClassOf obo:VT_0010090 .

obo:VT_0004090 a rdfs:Class ;
  rdfs:label "sarcomere morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the segment of a myofibril between two Z lines, comprised of multi-protein complexes consisting of three different filament systems; these systems work together to contract and relax muscle." ;
  rdfs:subClassOf obo:VT_0004087 .

obo:VT_0010677 a rdfs:Class ;
  rdfs:label "glycated serum protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of serum proteins which have undergone glycation (nonenzymic covalent bonding with a sugar molecule)." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0002100 a rdfs:Class ;
  rdfs:label "tooth morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone-like structures embedded in the jaw and used for mastication." ;
  rdfs:subClassOf obo:VT_0000452 .

obo:VT_0010867 a rdfs:Class ;
  rdfs:label "midbrain/pons dopamine amount" ;
  rdfs:comment "The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of this catecholamine neurotransmitter, derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0010877 .

obo:VT_1000122 a rdfs:Class ;
  rdfs:label "thoracic vertebra quantity" ;
  rdfs:comment "The proportion or number of bony segments of the vertebral column located anterior to the lumbar vertebrae and posterior to the cervical vertebrae, which articulate with the ribs." ;
  rdfs:subClassOf obo:VT_0000138 , obo:VT_0003047 .

obo:VT_0002846 a rdfs:Class ;
  rdfs:label "aorta capacity" ;
  rdfs:comment "The volume of or amount contained in the main trunk of the systemic arteries." ;
  rdfs:subClassOf obo:VT_0007090 .

obo:VT_0010986 a rdfs:Class ;
  rdfs:label "blood L-citrulline amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of citrulline, consisting of ornithine having a carbamoyl group at the N5-position." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0005535 a rdfs:Class ;
  rdfs:label "body temperature trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the level of heat maintained by a living being." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0000620 a rdfs:Class ;
  rdfs:label "salivary duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the tubular canals that carry saliva." ;
  rdfs:subClassOf obo:VT_0000613 .

obo:VT_0000899 a rdfs:Class ;
  rdfs:label "corpora quadrigemina morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the inferior and/or superior colliculus." ;
  rdfs:subClassOf obo:VT_0006104 .

obo:VT_0002796 a rdfs:Class ;
  rdfs:label "skin barrier function trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the membranous protective covering of the body to provide a protective barrier, to prevent water loss, moderate water integration and prevent foreign substances and bacteria from entering the body." ;
  rdfs:subClassOf obo:VT_0001784 , obo:VT_0005501 .

obo:VT_0001163 a rdfs:Class ;
  rdfs:label "coagulating gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anterior lobe of the prostate." ;
  rdfs:subClassOf obo:VT_0001158 .

obo:VT_1000060 a rdfs:Class ;
  rdfs:label "troponin T amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of one of a complex of three regulatory proteins required for skeletal and cardiac muscle contraction; used as an indicator for myocardial damage." ;
  rdfs:subClassOf obo:VT_0010120 .

obo:VT_0001756 a rdfs:Class ;
  rdfs:label "urine production trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the production and excretion of the fluid and dissolved substances excreted by the kidneys." ;
  rdfs:subClassOf obo:VT_0005502 .

obo:VT_0000078 a rdfs:Class ;
  rdfs:label "supraoccipital bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone on the dorsal side of the great foramen of the skull, usually forming a part of the occipital in the adult, but distinct in the young." ;
  rdfs:subClassOf obo:VT_0005269 .

obo:VT_0002279 a rdfs:Class ;
  rdfs:label "diaphragm morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the thin musculomebranous barrier that separates the abdominal and thoracic cavities; often used for breathing control." ;
  rdfs:subClassOf obo:VT_0002278 , obo:VT_0003358 .

obo:VT_0004131 a rdfs:Class ;
  rdfs:label "embryonic cilia morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the earliest cilia of the embryo, found on the cells of the embryonic node." ;
  rdfs:subClassOf obo:VT_0004066 .

obo:VT_0000856 a rdfs:Class ;
  rdfs:label "cerebellum plate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the embryonic pseudostratified epithelium of the fourth cerebellar ventricle that eventually forms the vermis and ventral neuroepithelium." ;
  rdfs:subClassOf obo:VT_0000854 .

obo:VT_0000540 a rdfs:Class ;
  rdfs:label "urinary bladder epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cellular avascular layer of the distensible musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0000538 .

obo:VT_0001047 a rdfs:Class ;
  rdfs:label "enteric cholinergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that utilize acetylcholine as a neurotransmitter and innervate the alimentary tube." ;
  rdfs:subClassOf obo:VT_0001038 , obo:VT_0001046 .

obo:VT_0001059 a rdfs:Class ;
  rdfs:label "optic nerve size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the second cranial nerve, which is responsible for conveying visual information from the retina to the brain." ;
  rdfs:subClassOf obo:VT_0001330 .

obo:VT_0004171 a rdfs:Class ;
  rdfs:label "pallium development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of roof region of the telencephalon during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000934 .

obo:VT_0011226 a rdfs:Class ;
  rdfs:label "adipose skatole amount" ;
  rdfs:comment "The proportion, quantity, or volume of skatole, a tryptophan degradation product, detected in fat-storing cells/tissue." ;
  rdfs:subClassOf obo:VT_0010006 .

obo:VT_0002669 a rdfs:Class ;
  rdfs:label "scrotum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the external sac of skin that encloses the testes." ;
  rdfs:subClassOf obo:VT_0001145 .

obo:VT_0006009 a rdfs:Class ;
  rdfs:label "neuron migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement of immature neurons from germinal zones to specific positions where they will reside as they mature." ;
  rdfs:subClassOf obo:VT_0006008 .

obo:VT_0002353 a rdfs:Class ;
  rdfs:label "inguinal lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the lymph nodes located in the groin area." ;
  rdfs:subClassOf obo:VT_0008463 .

obo:VT_1000294 a rdfs:Class ;
  rdfs:label "egg quantity" ;
  rdfs:comment "The proportion or number of eggs produced." ;
  rdfs:subClassOf obo:VT_0015042 .

obo:VT_0015015 a rdfs:Class ;
  rdfs:label "depression-related behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to responses to a stressful or pleasurable situation or stimulus." ;
  rdfs:subClassOf obo:VT_0002572 .

obo:VT_0005651 a rdfs:Class ;
  rdfs:label "gonad rudiment morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the undifferentiated mesoderm that gives rise to the gonads." ;
  rdfs:subClassOf obo:VT_0003936 .

obo:VT_0010592 a rdfs:Class ;
  rdfs:label "brain sitosterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the brain (one of the two components of the central nervous system and the center of thought and emotion) of a plant-derived sterol similar to cholesterol." ;
  rdfs:subClassOf obo:VT_0010590 .

obo:VT_0000925 a rdfs:Class ;
  rdfs:label "floor plate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a transient group of neuroepithelial cells located at the ventral midline of the neural tube that profoundly influences the development of the vertebrate central nervous system." ;
  rdfs:subClassOf obo:VT_0002151 .

obo:VT_0010220 a rdfs:Class ;
  rdfs:label "large intestine mass" ;
  rdfs:comment "The amount of matter in the distal portion of the digestive tube that extends from the ileocecal valve to the anus." ;
  rdfs:subClassOf obo:VT_0000489 , obo:VT_0010196 .

obo:VT_0002817 a rdfs:Class ;
  rdfs:label "tooth mineralization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which calcium salts are deposited into the dental enamel, dentin and cementum." ;
  rdfs:subClassOf obo:VT_0000116 , obo:VT_0003930 .

obo:VT_0004246 a rdfs:Class ;
  rdfs:label "extensor digitorum longus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the penniform muscle of the lateral front part of the leg responsible for extension of the toes and dorsiflexion of the ankle." ;
  rdfs:subClassOf obo:VT_0010107 .

obo:VT_0005355 a rdfs:Class ;
  rdfs:label "thyroid gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:VT_0000681 .

obo:VT_0011331 a rdfs:Class ;
  rdfs:label "CD3-negative, CD8-negative T cell quantity" ;
  rdfs:comment "The proportion or number of T lymphocytes that are negative for both the CD3 T-cell co-receptor complex and the CD8 glycoprotein." ;
  rdfs:subClassOf obo:VT_0011214 .

obo:VT_1000289 a rdfs:Class ;
  rdfs:label "tibia width" ;
  rdfs:comment "The distance from side to side of the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0100001 .

obo:VT_0015089 a rdfs:Class ;
  rdfs:label "alcohol metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving alcohols, any of a class of compounds containing one or more hydroxyl groups attached to a saturated carbon atom." ;
  rdfs:subClassOf obo:VT_0010638 .

obo:VT_0011002 a rdfs:Class ;
  rdfs:label "betaine amount" ;
  rdfs:comment "The proportion, quantity, or volume of this modified amino acid consisting of a glycine with three methyl groups that serves as a methyl donor for various metabolic pathways." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0002339 a rdfs:Class ;
  rdfs:label "lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the oval or bean shaped bodies located along the lymphatic system that consist of densely packed lymphocytes, lymph fluid and connective tissue; the sites where acquired immune responses are launched." ;
  rdfs:subClassOf obo:VT_0002722 , obo:VT_0010071 .

obo:VT_0010211 a rdfs:Class ;
  rdfs:label "duodenum crypt of Lieberkuhn width" ;
  rdfs:comment "The distance from side to side of the straight tubular glands located in the epithelial layer of the intestine between the bases of the villi of the duodenum." ;
  rdfs:subClassOf obo:VT_0000490 , obo:VT_0003271 , obo:VT_0010221 .

obo:VT_0000248 a rdfs:Class ;
  rdfs:label "erythrocyte size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the cells in the blood that carry oxygen, red blood cells" ;
  rdfs:subClassOf obo:VT_0002447 .

obo:VT_0004104 a rdfs:Class ;
  rdfs:label "eye shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the organ of vision." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0001288 a rdfs:Class ;
  rdfs:label "lens induction trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the beginning of the formation of the transparent structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0005545 .

obo:VT_0010764 a rdfs:Class ;
  rdfs:label "liver lipid amount" ;
  rdfs:comment "The proportion, quantity, or volume in liver tissue of fat-soluble substances (molecules composed of carbon and hydrogen and are characteristically insoluble in water)." ;
  rdfs:subClassOf obo:VT_0001547 , obo:VT_0010497 .

obo:VT_0007022 a rdfs:Class ;
  rdfs:label "pulmonary valve configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the valve between the right ventricle and the pulmonary trunk." ;
  rdfs:subClassOf obo:VT_0000044 .

obo:VT_0010639 a rdfs:Class ;
  rdfs:label "artery integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the blood vessels that carry blood away from the heart." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0002637 a rdfs:Class ;
  rdfs:label "uterus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0001120 .

obo:VT_0010761 a rdfs:Class ;
  rdfs:label "kidney lipid peroxide amount" ;
  rdfs:comment "The proportion, quantity, or volume in kidney of the lipid peroxidation end products produced by the oxidative degradation of lipids." ;
  rdfs:subClassOf obo:VT_0010558 .

obo:VT_0003090 a rdfs:Class ;
  rdfs:label "muscle progenitor cell migration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the directed and orderly movement from point to point of cells that will develop into muscle cells." ;
  rdfs:subClassOf obo:VT_0000729 .

obo:VT_0010236 a rdfs:Class ;
  rdfs:label "forestomach capacity" ;
  rdfs:comment "The volume of or amount contained in the large fermentation chamber situated anteriorly to the stomach in some species." ;
  rdfs:subClassOf obo:VT_0010235 .

obo:VT_0010204 a rdfs:Class ;
  rdfs:label "proventriculus capacity" ;
  rdfs:comment "The volume of or amount contained in the first muscular and glandular part of the stomach of birds where digestive enzymes are secreted and mixed with food." ;
  rdfs:subClassOf obo:VT_0010203 .

obo:VT_0003169 a rdfs:Class ;
  rdfs:label "scala media morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the division of the spiral canal of the cochlea that contains the organ of Corti (the neuroepithelial receptor organ for hearing)." ;
  rdfs:subClassOf obo:VT_0000031 .

obo:VT_1000738 a rdfs:Class ;
  rdfs:label "limb conformation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the assessment of the overall structure and proportions of the jointed appendages of an animal, used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0002109 , obo:VT_1000000 .

obo:VT_0004310 a rdfs:Class ;
  rdfs:label "otic vesicle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the paired epithelial sacs formed from the otic placode that give rise to the structures of the inner ear." ;
  rdfs:subClassOf obo:VT_0006030 .

obo:VT_0010975 a rdfs:Class ;
  rdfs:label "blood L-arginine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of  the L-isomer of arginine, an alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group." ;
  rdfs:subClassOf obo:VT_0005311 , obo:VT_0010932 .

obo:VT_0010378 a rdfs:Class ;
  rdfs:label "milk colloidal calcium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the calcium linked to casein micelles." ;
  rdfs:subClassOf obo:VT_0010290 .

obo:VT_0002161 a rdfs:Class ;
  rdfs:label "female fecundity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to a female's potential reproductive capacity." ;
  rdfs:subClassOf obo:VT_0001923 .

obo:VT_0006104 a rdfs:Class ;
  rdfs:label "tectum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the rostral part of the midbrain roof." ;
  rdfs:subClassOf obo:VT_0006103 .

obo:VT_0008249 a rdfs:Class ;
  rdfs:label "common lymphoid progenitor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a progenitor cell committed to the lymphoid lineage." ;
  rdfs:subClassOf obo:VT_0002398 .

obo:VT_0001153 a rdfs:Class ;
  rdfs:label "seminiferous tubule size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the tubules in the testes where spermatogenesis occurs." ;
  rdfs:subClassOf obo:VT_0002216 .

obo:VT_0000964 a rdfs:Class ;
  rdfs:label "dorsal root ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of one or more of the nerve cell bodies of each segmental nerve projecting from the spinal cord." ;
  rdfs:subClassOf obo:VT_0000961 .

obo:VT_0002436 a rdfs:Class ;
  rdfs:label "CD8-positive, alpha-beta cytotoxic T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD8-positive, alpha-beta T cell capable of killing target cells in an antigen specific manner." ;
  rdfs:subClassOf obo:VT_0005010 .

obo:VT_0011368 a rdfs:Class ;
  rdfs:label "sperm flagellum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a microtubule-based flagellum (or cilium) that is part of a sperm, a mature male germ cell that develops from a spermatid." ;
  rdfs:subClassOf obo:VT_0010042 .

obo:VT_0000530 a rdfs:Class ;
  rdfs:label "kidney blood vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the network of vessels that convey blood in the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0001614 , obo:VT_0002135 .

obo:VT_0010181 a rdfs:Class ;
  rdfs:label "myeloblast development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of cells found in the bone marrow, which eventually give rise to the granulocyte line of blood cells, during their formation and differentiation." ;
  rdfs:subClassOf obo:VT_0010180 .

obo:VT_0000068 a rdfs:Class ;
  rdfs:label "blood mineral amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any inorganic element or compound that has importance in body functions." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0010931 .

obo:VT_0006064 a rdfs:Class ;
  rdfs:label "superior vena cava morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the principal vein draining blood from the upper portion of the body." ;
  rdfs:subClassOf obo:VT_0006062 .

obo:VT_0000607 a rdfs:Class ;
  rdfs:label "hepatocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the main structural component of the liver; these are specialized epithelial cells normally organized into interconnected plates called lobules." ;
  rdfs:subClassOf obo:VT_0000598 .

obo:VT_0005208 a rdfs:Class ;
  rdfs:label "iris stroma morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the lamellated connective tissue of the iris." ;
  rdfs:subClassOf obo:VT_0001322 .

obo:VT_0010511 a rdfs:Class ;
  rdfs:label "lumbar vertebra mineral mass" ;
  rdfs:comment "The amount of matter in the minerals (inorganic elements or compounds that have importance in body functions) in the bony segments of the spinal column located anterior/superior to the sacral vertebrae and posterior/inferior to the thoracic vertebrae." ;
  rdfs:subClassOf obo:VT_0005007 , obo:VT_0010510 .

obo:VT_0003784 a rdfs:Class ;
  rdfs:label "lip vermillion border width" ;
  rdfs:comment "The distance from side to side of the line between the lip and the facial skin around the mouth." ;
  rdfs:subClassOf obo:VT_0003769 .

obo:VT_0000044 a rdfs:Class ;
  rdfs:label "pulmonary valve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the valve between the right ventricle and the pulmonary trunk." ;
  rdfs:subClassOf obo:VT_0002746 .

obo:VT_0010498 a rdfs:Class ;
  rdfs:label "liver cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in the bile-secreting exocrine gland of the most abundant steroid in animal tissues, precursor to steroid hormones and bile salts; also component of plasma membranes." ;
  rdfs:subClassOf obo:VT_0003947 , obo:VT_0010584 .

obo:VT_0008498 a rdfs:Class ;
  rdfs:label "blood immunoglobulin G3 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of immunoglobulin class G3." ;
  rdfs:subClassOf obo:VT_0001805 .

obo:VT_0008042 a rdfs:Class ;
  rdfs:label "NK T cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the distinct lineage of T cells expressing natural killer cell markers and having T cell receptors characterized by the usage of a restricted repertoire of variable region gene segments." ;
  rdfs:subClassOf obo:VT_0002444 .

obo:VT_0004390 a rdfs:Class ;
  rdfs:label "bronchoalveolar duct junction morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the branch point connecting the respiratory bronchioles to the alveolar ducts." ;
  rdfs:subClassOf obo:VT_0002271 , obo:VT_0004389 .

obo:VT_0003563 a rdfs:Class ;
  rdfs:label "pancreatic alpha cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the glucagon-producing cells of the islets of Langerhans in the pancreas." ;
  rdfs:subClassOf obo:VT_0010501 .

obo:VT_0008894 a rdfs:Class ;
  rdfs:label "intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a T cell present in columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0001601 a rdfs:Class ;
  rdfs:label "myelopoiesis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the formation of myeloid cells from the pluripotent hematopoietic stem cells in the bone marrow via myeloid stem cells, including the production of leukocytes in blood, such as monocytes and granulocytes, and precursor cells for macrophages and dendritic cells found in the lymphoid tissue." ;
  rdfs:subClassOf obo:VT_0005460 .

obo:VT_0011220 a rdfs:Class ;
  rdfs:label "large unstained cell quantity" ;
  rdfs:comment "The proportion or number of larger than normal cells which are unstained using routine blood count methodologies; large unstained cells (LUC) are larger than normal lymphocytes, and may be atypical lymphocytes, myeloperoxidase deficient cells or peroxidase negative blasts. Aberrations in the count of large unstained cells may be indicative of viral disease or leukemia." ;
  rdfs:subClassOf obo:VT_0010191 .

obo:VT_0003105 a rdfs:Class ;
  rdfs:label "heart atrium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the upper chamber(s) of the heart that receive blood from the vasculature and send blood into a ventricle." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0015104 a rdfs:Class ;
  rdfs:label "hippocampus pyramidal cell layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the hippocampal layer containing neurons with pyramidal shaped cell bodies." ;
  rdfs:subClassOf obo:VT_0000813 .

obo:VT_0010149 a rdfs:Class ;
  rdfs:label "obsolete chemokine physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of any of the class of pro-inflammatory cytokines that attract and activate leukocytes." .

obo:VT_0010958 a rdfs:Class ;
  rdfs:label "digoxin metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving digoxin, a cardiac glycoside used to control ventricular rate in atrial fibrillation and in the management of congestive heart failure with atrial fibrillation." ;
  rdfs:subClassOf obo:VT_0010638 .

obo:VT_0002074 a rdfs:Class ;
  rdfs:label "hair texture trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the visual or tactile surface characteristics of the hair, wool, or fur of an organism, that is, of either a single cylindrical, keratinized, often pigmented filament characteristically growing from the epidermis of a mammal, or of the aggregate of all such filaments." ;
  rdfs:subClassOf obo:VT_0000367 .

obo:VT_0005650 a rdfs:Class ;
  rdfs:label "limb bud morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the swellings on the trunk of the embryo that become limbs, the projecting, paired, jointed appendages of the body used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0006279 .

obo:VT_0000242 a rdfs:Class ;
  rdfs:label "heart electrical impulse generation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the generation of action potentials in cardiac muscle." ;
  rdfs:subClassOf obo:VT_0000231 .

obo:VT_0010934 a rdfs:Class ;
  rdfs:label "adipocyte size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of fat cells." ;
  rdfs:subClassOf obo:VT_0004128 .

obo:VT_0000186 a rdfs:Class ;
  rdfs:label "blood shear trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the mechanical force exerted by the blood parallel to the blood-tissue surface." ;
  rdfs:subClassOf obo:VT_0000175 .

obo:VT_0011345 a rdfs:Class ;
  rdfs:label "blood beta-globulin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the serum proteins with an electrophoretic mobility that falls between alpha-globulins and gamma-globulins." ;
  rdfs:subClassOf obo:VT_0010628 .

obo:VT_0010495 a rdfs:Class ;
  rdfs:label "inguinal lymph node mass" ;
  rdfs:comment "The amount of matter in the lymph nodes located in the groin area." ;
  rdfs:subClassOf obo:VT_0009623 .

obo:VT_0010743 a rdfs:Class ;
  rdfs:label "blood cystatin C amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of cystatin C." ;
  rdfs:subClassOf obo:VT_0010742 .

obo:VT_0011204 a rdfs:Class ;
  rdfs:label "muscle cobalt amount" ;
  rdfs:comment "The proportion, quantity, or volume of a trace element that is a component of vitamin B12 detected in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0010021 .

obo:VT_0003401 a rdfs:Class ;
  rdfs:label "tail bud size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the primordial region of the embryo that arises to form the tail of the adult." ;
  rdfs:subClassOf obo:VT_0002861 .

obo:VT_0000990 a rdfs:Class ;
  rdfs:label "skeletal muscle mechanoreceptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the receptors that respond to mechanical pressure or distortion in any of the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0000972 , obo:VT_0002108 .

obo:VT_0010232 a rdfs:Class ;
  rdfs:label "colon mucosa thickness" ;
  rdfs:comment "The distance between the surfaces of the mucosal layer lining the portion of the large intestine between the cecum and the rectum." ;
  rdfs:subClassOf obo:VT_0002731 .

obo:VT_0009923 a rdfs:Class ;
  rdfs:label "transitional stage T1 B cell quantity" ;
  rdfs:comment "The proportion or number of a type of transitional stage B cell that migrates from the bone marrow into the peripheral circulation, and finally to the spleen; this cell type has the phenotype surface IgM-positive, surface IgD-negative, CD21-negative, CD23-negative, and CD62L-negative." ;
  rdfs:subClassOf obo:VT_0008190 , obo:VT_0009919 .

obo:VT_0008649 a rdfs:Class ;
  rdfs:label "blood interleukin-23a amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the p19 subunit of interleukin-23." ;
  rdfs:subClassOf obo:VT_0008619 .

obo:VT_0010969 a rdfs:Class ;
  rdfs:label "blood L-aspartic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of aspartic acid, an alpha-amino acid that consists of succinic acid bearing a single alpha-amino substituent." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0002342 a rdfs:Class ;
  rdfs:label "lymph node trabecula morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the membranous processes on the internal surface of the lymph node capsule, consisting of connective tissue and muscle fibers." ;
  rdfs:subClassOf obo:VT_0002339 .

obo:VT_0007084 a rdfs:Class ;
  rdfs:label "heart ventricle septum configuration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the arrangement of the wall separating the lower chambers of the heart." ;
  rdfs:subClassOf obo:VT_0007082 .

obo:VT_0003014 a rdfs:Class ;
  rdfs:label "kidney medulla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the inner portion of the kidney consisting of the renal pyramids." ;
  rdfs:subClassOf obo:VT_0002135 .

obo:VT_0002987 a rdfs:Class ;
  rdfs:label "urine solute amount" ;
  rdfs:comment "The total proportion, quantity, or volume of substances dissolved in urine, total solute amount." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0002836 a rdfs:Class ;
  rdfs:label "chorion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outermost extraembryonic membrane." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0010501 a rdfs:Class ;
  rdfs:label "islet of Langerhans physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cellular masses in the interstitial tissue of the pancreas that form the endocrine portion of the gland." ;
  rdfs:subClassOf obo:VT_0002693 .

obo:VT_0010222 a rdfs:Class ;
  rdfs:label "jejunum mucosa morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mucous lining of the portion of the small intestine that extends from the duodenum to the ileum; this consists of epithelium, lamina propria, and a layer of smooth muscle cells." ;
  rdfs:subClassOf obo:VT_0000511 .

obo:VT_0015075 a rdfs:Class ;
  rdfs:label "styloid process of temporal bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the slender needle-like pointed projection that runs downward and slightly forward from the base of the inferior surface of the petrous portion of the temporal bone where it joins the tympanic portion; it gives attachment to the styloglossus, stylohyoid, and stylopharyngeus muscles and the stylohyoid and stylomandibular ligaments." ;
  rdfs:subClassOf obo:VT_0005272 .

obo:VT_0011141 a rdfs:Class ;
  rdfs:label "right pulmonary vein molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the vein that drains the right lung and returns blood to the heart." ;
  rdfs:subClassOf obo:VT_0011132 .

obo:VT_0011077 a rdfs:Class ;
  rdfs:label "middle temporal gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the longitudinal ridge on the lateral surface of the temporal lobe with the superior temporal gyrus along its dorsal edge and with the inferior temporal gyrus along its ventral edge." ;
  rdfs:subClassOf obo:VT_0000801 .

obo:VT_0000936 a rdfs:Class ;
  rdfs:label "telencephalic vesicle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the paired diverticula of the telencephalon, from which the forebrain develops." ;
  rdfs:subClassOf obo:VT_0000934 .

obo:VT_0000535 a rdfs:Class ;
  rdfs:label "ureter luminal epithelial cell quantity" ;
  rdfs:comment "The proportion or number of cells in the luminal epithelium of the tube that conducts the urine from the renal pelvis to the bladder." ;
  rdfs:subClassOf obo:VT_0000534 .

obo:VT_0001303 a rdfs:Class ;
  rdfs:label "lens morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the transparent structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0005193 .

obo:VT_0006014 a rdfs:Class ;
  rdfs:label "endolymphatic sac size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the dilated blind extremity of the endolymphatic duct." ;
  rdfs:subClassOf obo:VT_0006011 .

obo:VT_0002224 a rdfs:Class ;
  rdfs:label "spleen size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organ that functions to filter blood and to store red corpuscles and platelets." ;
  rdfs:subClassOf obo:VT_0000689 , obo:VT_0002221 .

obo:VT_0002907 a rdfs:Class ;
  rdfs:label "parturition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of labor and delivery in female animals." ;
  rdfs:subClassOf obo:VT_0003699 .

obo:VT_1000713 a rdfs:Class ;
  rdfs:label "skeletal muscle myosin heavy chain type IIb amount" ;
  rdfs:comment "The proportion, quantity, or volume of the type IIb isoform, found in the fastest fibers, of the most abundant protein in skeletal muscle." ;
  rdfs:subClassOf obo:VT_1000746 .

obo:VT_0011250 a rdfs:Class ;
  rdfs:label "cerebrum ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the largest part of the brain, derived from the telencephalon, which is composed of a right and a left hemisphere, each of which contains an outer cerebral cortex and a subcortical basal ganglia; cerebral functions include sensorimotor, emotional, and intellectual activities. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011249 , obo:VT_0011257 .

obo:VT_0010855 a rdfs:Class ;
  rdfs:label "cervical spinal cord norepinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in a spinal cord segment adjacent to a cervical region of a catecholamine hormone that functions as a neurotransmitter and is the precursor to epinephrine." ;
  rdfs:subClassOf obo:VT_0010577 , obo:VT_0010837 .

obo:VT_0003538 a rdfs:Class ;
  rdfs:label "hymen development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the thin membrane which may partially occlude the opening of the vagina; often absent in normal females." ;
  rdfs:subClassOf obo:VT_0003531 .

obo:VT_0010910 a rdfs:Class ;
  rdfs:label "skeletal muscle capillary amount" ;
  rdfs:comment "The proportion or number in skeletal muscle of the small branching blood vessels that connect arterioles and venules." ;
  rdfs:subClassOf obo:VT_0000087 .

obo:VT_0000136 a rdfs:Class ;
  rdfs:label "microglial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small, migratory, phagocytic, interstitial cells derived from myeloid progenitor cells and found in the parenchyma of the central nervous system; microglia are scavengers, engulfing dead cells and other debris, and in Alzheimer's disease, microglia are found associated with dying nerve cells and amyloid plaques." ;
  rdfs:subClassOf obo:VT_0000952 , obo:VT_0002446 .

obo:VT_0003467 a rdfs:Class ;
  rdfs:label "single cell response intensity" ;
  rdfs:comment "The degree of de- or hyperpolarization or number of action potentials in response to a specific stimulus recorded in a single cell." ;
  rdfs:subClassOf obo:VT_0003463 .

obo:VT_0010399 a rdfs:Class ;
  rdfs:label "milk urea amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of the chief end product of nitrogen metabolism in mammals." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0002235 a rdfs:Class ;
  rdfs:label "external nares morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anterior opening to the nasal cavity." ;
  rdfs:subClassOf obo:VT_0002233 .

obo:VT_0010898 a rdfs:Class ;
  rdfs:label "leukocyte integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural or biochemical soundness of the nucleated cells of the myeloid or lymphoid lineages, found in blood or other tissue." ;
  rdfs:subClassOf obo:VT_0008246 , obo:VT_0010779 .

obo:VT_0000202 a rdfs:Class ;
  rdfs:label "blood alkaline phosphatase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which hydrolyzes orthophosphoric monoesters." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0010263 a rdfs:Class ;
  rdfs:label "erythrocyte precursor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the immature erythrocyte precursors." ;
  rdfs:subClassOf obo:VT_0002398 .

obo:VT_0005107 a rdfs:Class ;
  rdfs:label "stapes morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the smallest and innermost of the three auditory ossicles." ;
  rdfs:subClassOf obo:VT_0005105 .

obo:VT_0005235 a rdfs:Class ;
  rdfs:label "olfactory lobe morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the composite substructure of the telencephalon that is identified with olfaction; in humans this includes the olfactory tract, the anterior olfactory nucleus, the olfactory tubercle, the medial olfactory stria, the lateral olfactory stria, parts of the amygdala and the prepyriform area." ;
  rdfs:subClassOf obo:VT_0000787 .

obo:VT_0010838 a rdfs:Class ;
  rdfs:label "tissue serotonin amount" ;
  rdfs:comment "The proportion, quantity, or volume in a tissue of this monoamine neurotransmitter derived primarily from tryptophan." ;
  rdfs:subClassOf obo:VT_0010484 , obo:VT_0015077 .

obo:VT_0010191 a rdfs:Class ;
  rdfs:label "immune system cell quantity" ;
  rdfs:comment "The proportion or number of cells associated with the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0000716 .

obo:VT_0002109 a rdfs:Class ;
  rdfs:label "limb morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the projecting, paired, jointed appendages of the body used for locomotion or grasping." ;
  rdfs:subClassOf obo:VT_0015071 .

obo:VT_0011334 a rdfs:Class ;
  rdfs:label "mouth size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the oral cavity." ;
  rdfs:subClassOf obo:VT_0000452 .

obo:VT_0010230 a rdfs:Class ;
  rdfs:label "ileum crypt of Lieberkuhn width" ;
  rdfs:comment "The distance from side to side of the straight tubular glands located in the epithelial layer of the intestine between the bases of the villi of the ileum." ;
  rdfs:subClassOf obo:VT_0000490 , obo:VT_0002581 , obo:VT_0010223 .

obo:VT_0007028 a rdfs:Class ;
  rdfs:label "heart mass" ;
  rdfs:comment "The amount of matter in the cardiac muscle that maintains the circulation of the blood." ;
  rdfs:subClassOf obo:VT_0005406 .

obo:VT_0000473 a rdfs:Class ;
  rdfs:label "stomach glandular epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the gland-containing epithelial layer of the stomach." ;
  rdfs:subClassOf obo:VT_0000471 .

obo:VT_0006113 a rdfs:Class ;
  rdfs:label "heart septum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the wall between the atria or ventricles of the heart." ;
  rdfs:subClassOf obo:VT_0000266 .

obo:VT_0006226 a rdfs:Class ;
  rdfs:label "iris cell quantity" ;
  rdfs:comment "The proportion or number of cells in the adjustable membrane, composed of the stroma and pigmented epithelium, located just in front of the crystalline lens within the eye." ;
  rdfs:subClassOf obo:VT_0001322 .

obo:VT_0001289 a rdfs:Class ;
  rdfs:label "hyaloid capillary system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the transient vascular system of the eye during its formation, differentiation, and degeneration." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0005567 a rdfs:Class ;
  rdfs:label "blood total protein amount" ;
  rdfs:comment "The total proportion, quantity, or volume in whole blood, serum, or plasma of macromolecules consisting of long chains of amino acids in peptide linkage." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0010670 a rdfs:Class ;
  rdfs:label "NADP+-malate dehydrogenase activity" ;
  rdfs:comment "The degree of function or response of the enzyme that catalyzes the dehydrogenation of malate to oxaloacetate." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0008739 a rdfs:Class ;
  rdfs:label "spleen iron amount" ;
  rdfs:comment "The proportion, quantity, or volume of iron present in the spleen tissue." ;
  rdfs:subClassOf obo:VT_0000689 , obo:VT_0001770 .

obo:VT_0001119 a rdfs:Class ;
  rdfs:label "female reproductive system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organs associated with producing offspring in the gender that bears the offspring." ;
  rdfs:subClassOf obo:VT_0002160 .

obo:VT_0002680 a rdfs:Class ;
  rdfs:label "corpus luteum quantity" ;
  rdfs:comment "The proportion or number of yellow endocrine bodies formed in the ovary after follicle rupture." ;
  rdfs:subClassOf obo:VT_0002679 .

obo:VT_0011211 a rdfs:Class ;
  rdfs:label "sperm head morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the spermatazoa containing the nucleus and acrosome." ;
  rdfs:subClassOf obo:VT_0010042 .

obo:VT_0010319 a rdfs:Class ;
  rdfs:label "milk fatty acid C20:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a twenty-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0001690 a rdfs:Class ;
  rdfs:label "somite differentiation initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of the process by which relatively unspecialized cells, tissues, or structures acquire the specialized features of the paired, metamerically arranged cell masses formed in the early embryo." ;
  rdfs:subClassOf obo:VT_0001688 .

obo:VT_0010431 a rdfs:Class ;
  rdfs:label "uterine fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue associated with the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0015007 .

obo:VT_0001318 a rdfs:Class ;
  rdfs:label "pupil clarity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree of transparency of the central circular aperture of the iris through which light rays normally enter the eye." ;
  rdfs:subClassOf obo:VT_0001317 .

obo:VT_0010275 a rdfs:Class ;
  rdfs:label "milk hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of any substance, usually a peptide or steroid, that has a specific metabolic regulatory effect on the activity or behavior of cells expressing a receptor for the hormone." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0011088 a rdfs:Class ;
  rdfs:label "vena cava molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in either of the two largest veins in the body." ;
  rdfs:subClassOf obo:VT_0006062 .

obo:VT_0015004 a rdfs:Class ;
  rdfs:label "mesenteric fat pad morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the peritoneal fold that encloses the small intestine and connects it to the abdominal wall." ;
  rdfs:subClassOf obo:VT_0005334 .

obo:VT_0000541 a rdfs:Class ;
  rdfs:label "urinary bladder transitional epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the transitional epithelial layer (stratified epithelium with large, polyploid superfical cells that are dome-shaped when relaxed, but broad and flattened when distended) of the distensible musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0000540 .

obo:VT_0010012 a rdfs:Class ;
  rdfs:label "humerus strength trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the bone of the forelimb that articulates with the scapula above and the radius and ulna below to withstand the application of force without yielding or breaking." ;
  rdfs:subClassOf obo:VT_0001542 .

obo:VT_0010857 a rdfs:Class ;
  rdfs:label "midbrain/pons norepinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the midbrain (the middle of the three cerebral vesicles of the embryo or the corresponding part of the adult brain) and neighboring pons (between the medulla oblongata and the midbrain) of a catecholamine hormone that functions as a neurotransmitter and is the precursor to epinephrine." ;
  rdfs:subClassOf obo:VT_0010837 , obo:VT_0010875 .

obo:VT_0010921 a rdfs:Class ;
  rdfs:label "cerebral artery size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the arteries which irrigate the cerebrum of the brain." ;
  rdfs:subClassOf obo:VT_0010920 .

obo:VT_0002713 a rdfs:Class ;
  rdfs:label "glycogen catabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to break down glycogen; or rate of glycogen breakdown." ;
  rdfs:subClassOf obo:VT_0015088 .

obo:VT_0011244 a rdfs:Class ;
  rdfs:label "white adipose ribonucleic acid amount" ;
  rdfs:comment """The proportion, quantity, or volume of ribonucleic acid 
in the connective tissue consisting of fat-storing cells and arranged in lobular groups or along minor blood vessels. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds.""" ;
  rdfs:subClassOf obo:VT_0002970 , obo:VT_0011023 .

obo:VT_0010726 a rdfs:Class ;
  rdfs:label "wildness behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions in tests to determine the ease with which an animal can be captured and/or handled." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0003877 a rdfs:Class ;
  rdfs:label "serotonergic neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that secrete serotonin." ;
  rdfs:subClassOf obo:VT_0002882 .

obo:VT_0010579 a rdfs:Class ;
  rdfs:label "brain integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the brain, one of the two components of the central nervous system and the center of thought and emotion; controls coordination, bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.)." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0004942 a rdfs:Class ;
  rdfs:label "B cell selection trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process dependent upon B cell antigen receptor signaling in response to self or foreign antigen through which B cells are selected for survival." ;
  rdfs:subClassOf obo:VT_0002144 .

obo:VT_0011038 a rdfs:Class ;
  rdfs:label "pineal gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the pineal gland, the midline, cone-like structure located in the dorso-caudal roof of the third ventricle, attached by peduncles to the habenular and posterior commissures, which produces melatonin. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011040 .

obo:VT_0003816 a rdfs:Class ;
  rdfs:label "pituitary gland development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the compound gland suspended from the base of the hypothalamus, which secretes somatotropins, prolactin, TSH (thyroid-stimulating hormone), gonadotropins, and adrenal corticotropin." ;
  rdfs:subClassOf obo:VT_0015037 .

obo:VT_0003072 a rdfs:Class ;
  rdfs:label "metatarsus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bones of the lower/hindlimbs that articulate proximally with the tarsus and distally with the phalanges." ;
  rdfs:subClassOf obo:VT_0000556 , obo:VT_0010105 .

obo:VT_0002856 a rdfs:Class ;
  rdfs:label "vestibular ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of neurons associated with the vestibular part of the eighth cranial nerve that are involved in equilibration." ;
  rdfs:subClassOf obo:VT_0001081 .

obo:VT_0005224 a rdfs:Class ;
  rdfs:label "left-right axis somite development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the somites along the axis that runs from the left to the right side of the body." ;
  rdfs:subClassOf obo:VT_0001688 , obo:VT_0001706 .

obo:VT_0002230 a rdfs:Class ;
  rdfs:label "primitive streak development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the midline ridge of embryonic epiblast that later develops into mesoderm and endoderm." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0010663 a rdfs:Class ;
  rdfs:label "toll-like receptor 9 protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in serum of toll-like receptor 9, a membrane protein which is expressed on the surface of certain cells and plays a role in immune response." ;
  rdfs:subClassOf obo:VT_0010034 .

obo:VT_0000509 a rdfs:Class ;
  rdfs:label "digestive mucosecretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a physiologically active substance (usually but not exclusively in liquid form) from the mucous membrane of the digestive system." ;
  rdfs:subClassOf obo:VT_0000501 .

obo:VT_0010139 a rdfs:Class ;
  rdfs:label "immune response trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter any immune system process or function as a result of a potential internal or invasive threat." ;
  rdfs:subClassOf obo:VT_0001790 .

obo:VT_0004423 a rdfs:Class ;
  rdfs:label "squama temporalis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thin, scale-like part of the temporal bone forming part of the lateral wall of the cranial vault." ;
  rdfs:subClassOf obo:VT_0005272 .

obo:VT_0002278 a rdfs:Class ;
  rdfs:label "respiratory muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the muscles involved in breathing." ;
  rdfs:subClassOf obo:VT_0002132 .

obo:VT_0100022 a rdfs:Class ;
  rdfs:label "mammary alveoli diameter" ;
  rdfs:comment "The distance across the sac-like structure of the mammary gland that synthesizes and secretes milk after pregnancy." ;
  rdfs:subClassOf obo:VT_0100021 .

obo:VT_0001718 a rdfs:Class ;
  rdfs:label "yolk sac morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the highly vascular layer surrounding the yolk of an embryo; it contributes to hematopoietic circulation in mammals." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0005493 a rdfs:Class ;
  rdfs:label "stomach epithelial cell quantity" ;
  rdfs:comment "The proportion or number of cells in the epithelial layer of the stomach." ;
  rdfs:subClassOf obo:VT_0000471 .

obo:VT_0011118 a rdfs:Class ;
  rdfs:label "embryonic cell/tissue molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in any cell type or tissue in the embryo." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0001046 a rdfs:Class ;
  rdfs:label "enteric neuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neurons that innervate the alimentary tube." ;
  rdfs:subClassOf obo:VT_0001044 .

obo:VT_0004343 a rdfs:Class ;
  rdfs:label "scapula size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of either or both of the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0000149 .

obo:VT_0010684 a rdfs:Class ;
  rdfs:label "peritoneum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the serous membrane that lines the peritoneal cavity." ;
  rdfs:subClassOf obo:VT_0004134 .

obo:VT_0004141 a rdfs:Class ;
  rdfs:label "enteroendocrine cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the hormone- or neurotransmitter-secreting epithelial cells present throughout the epithelium of the digestive tract." ;
  rdfs:subClassOf obo:VT_0000511 , obo:VT_0003892 .

obo:VT_0002245 a rdfs:Class ;
  rdfs:label "ethmoid sinus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of these small spaces found within the ethmoid bone." ;
  rdfs:subClassOf obo:VT_0002240 .

obo:VT_0011027 a rdfs:Class ;
  rdfs:label "prostate ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the gland surrounding the beginning of the urethra in males that secretes part of the seminal fluid. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011026 .

obo:VT_0004972 a rdfs:Class ;
  rdfs:label "regulatory T cell quantity" ;
  rdfs:comment "The proportion or number of the specialized subpopulation of T cells that act to suppress activation of the immune system and thus maintain immune system homeostasis and prevent pathological self-reactivity." ;
  rdfs:subClassOf obo:VT_0004941 , obo:VT_0006387 .

obo:VT_0003568 a rdfs:Class ;
  rdfs:label "uterine lumen morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the opening or lumen of the uterus." ;
  rdfs:subClassOf obo:VT_0001120 .

obo:VT_0010916 a rdfs:Class ;
  rdfs:label "blood gastric inhibitory polypeptide amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of gastric inhibitory polypeptide, a 42-amino-acid hormone that is produced by enteroendocrine K-cells and released into the circulation in response to nutrient stimulation." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010630 a rdfs:Class ;
  rdfs:label "blood glutathione peroxidase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this enzyme, which catalyzes the reaction of two glutathiones with H2O2, forming glutathione disulfide and two water molecules, and is a crucial enzyme in hydrogen peroxide detoxification." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0015064 a rdfs:Class ;
  rdfs:label "parasympathetic preganglionic fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any or all of the cholinergic axonal fibers projecting from the CNS to a parasympathetic ganglion." ;
  rdfs:subClassOf obo:VT_0001033 .

obo:VT_0000841 a rdfs:Class ;
  rdfs:label "hindbrain morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the caudal region of the brain; includes cerebellum, pons and medulla oblongata." ;
  rdfs:subClassOf obo:VT_0002152 .

obo:VT_0010062 a rdfs:Class ;
  rdfs:label "cholinergic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers that utilize acetylcholine as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0010143 .

obo:VT_0002063 a rdfs:Class ;
  rdfs:label "learning/memory/conditioning trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism associated with the ability to receive, store, process or recall informational stimuli." ;
  rdfs:subClassOf obo:VT_0010450 .

obo:VT_0004091 a rdfs:Class ;
  rdfs:label "Z line morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cross-striation bisecting the I band of striated muscle myofibrils and serving as the anchoring point of actin filaments at either end of the sarcomere." ;
  rdfs:subClassOf obo:VT_0004090 .

obo:VT_0003047 a rdfs:Class ;
  rdfs:label "thoracic vertebra morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony segments of the vertebral column located anterior to the lumbar vertebrae and posterior to the cervical vertebrae; they articulate with the ribs." ;
  rdfs:subClassOf obo:VT_0000137 , obo:VT_0004134 , obo:VT_0010092 .

obo:VT_0011253 a rdfs:Class ;
  rdfs:label "medulla oblongata ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the most caudal region of the brainstem that lies directly rostral to the spinal cord; includes regions responsible for autonomic functions such as digestion, breathing and control of heart rate. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010791 , obo:VT_0011252 .

obo:VT_0010001 a rdfs:Class ;
  rdfs:label "mammary gland progenitor cell quantity" ;
  rdfs:comment "The proportion or number of precursor cells from which the mammary cell lineage arises, capable of proliferation but unable to self-renew like stem cells, and thus proliferate indefinitely." ;
  rdfs:subClassOf obo:VT_0100024 .

obo:VT_0005081 a rdfs:Class ;
  rdfs:label "dermis stratum reticulare morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the inner layer of the dermis, consisting chiefly of dense fibrous tissue." ;
  rdfs:subClassOf obo:VT_0001243 .

obo:VT_0002648 a rdfs:Class ;
  rdfs:label "enamel delamination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the separation of the hard outer coating of the exposed portion of the tooth from the underlying hard tissue." ;
  rdfs:subClassOf obo:VT_0002576 .

obo:VT_0011062 a rdfs:Class ;
  rdfs:label "lymphocyte ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the cells involved in adaptive immune reactions of the body, including B cells, T cells and natural killer cells. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011061 , obo:VT_0011242 .

obo:VT_0003815 a rdfs:Class ;
  rdfs:label "obsolete hair quantity" ;
  rdfs:comment """OBSOLETE. The proportion or number of fine, keratinized filamentous growths arising from the epidermis of mammals.
see VT:0000416""" .

obo:VT_1000612 a rdfs:Class ;
  rdfs:label "type IIb muscle fiber quantity" ;
  rdfs:comment "The proportion or number of type IIb, fast glycolytic fibers in skeletal muscle; these white fibers are greater in diameter than red fibers, have less myoglobin, sarcoplasm, and mitochondria, and contract more quickly." ;
  rdfs:subClassOf obo:VT_1000743 .

obo:VT_0010124 a rdfs:Class ;
  rdfs:label "parotid salivary gland cholinergic nerve fiber quantity" ;
  rdfs:comment "The proportion or number of nerve fibers that utilize acetylcholine as a neurotransmitter and transmit impulses to the exocrine gland lateral to the jaw that secretes saliva." ;
  rdfs:subClassOf obo:VT_0010062 .

obo:VT_0003202 a rdfs:Class ;
  rdfs:label "neuron apoptosis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which neurons undergo programmed cell death." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010692 a rdfs:Class ;
  rdfs:label "subscapular fat pad mass" ;
  rdfs:comment "The amount of matter in the encapsulated adipose tissue located beneath the large, flat bones of the shoulder girdle." ;
  rdfs:subClassOf obo:VT_0010691 .

obo:VT_0010866 a rdfs:Class ;
  rdfs:label "medulla oblongata dopamine amount" ;
  rdfs:comment "The proportion, quantity, or volume of dopamine in the most caudal region of the brainstem that lies directly rostral to the spinal cord. Dopamine is a catecholamine neurotransmitter derived from tyrosine and the precursor to norepinephrine and epinephrine." ;
  rdfs:subClassOf obo:VT_0010877 , obo:VT_0011252 .

obo:VT_0010708 a rdfs:Class ;
  rdfs:label "sheltering behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism with regard to visiting a shelter or nest used for resting/sleeping." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0002267 a rdfs:Class ;
  rdfs:label "bronchiole morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the conducting airway of the lungs found terminal to the bronchi; these structures contain neither cartilage nor mucous-secreting glands; the epithelium of the bronchioles becomes thinner with each branching." ;
  rdfs:subClassOf obo:VT_0004391 .

obo:VT_0000910 a rdfs:Class ;
  rdfs:label "facial motor nucleus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of motor neurons residing in the pons that innervate the muscles of facial expression." ;
  rdfs:subClassOf obo:VT_0000909 .

obo:VT_0010652 a rdfs:Class ;
  rdfs:label "muscle mineral amount" ;
  rdfs:comment "The proportion, quantity, or volume of any inorganic element or compound that has importance in body functions in the tissue composed of contractile cells or fibers that effects movement." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0010021 .

obo:VT_0004355 a rdfs:Class ;
  rdfs:label "radius length" ;
  rdfs:comment "The distance from point to point along the longest axis of the bone situated on the lateral side of the ulna in the forelimb." ;
  rdfs:subClassOf obo:VT_0000552 .

obo:VT_0011135 a rdfs:Class ;
  rdfs:label "blood peptide YY (tyrosine tyrosine) amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this peptide hormone, released from cells in the ileum and colon in response to feeding, that plays a role in appetite regulation and obesity." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010252 a rdfs:Class ;
  rdfs:label "hemolymphoid system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the blood forming organs and tissues and the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood." ;
  rdfs:subClassOf obo:VT_0010248 .

obo:VT_0006256 a rdfs:Class ;
  rdfs:label "gustatory papillae morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the papillae that contain taste buds, including the fungiform, foliate, and circumvallate papillae." ;
  rdfs:subClassOf obo:VT_0000764 .

obo:VT_0000000 a rdfs:Class ;
  rdfs:label "mammary gland secreted fluid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of fluids released by the milk-producing glands in female mammals, consisting of lobes containing clusters of alveoli with a system of ducts to convey the milk to an external nipple or teat." ;
  rdfs:subClassOf obo:VT_0000627 .

obo:VT_2000005 a rdfs:Class ;
  rdfs:label "cerebral blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to blood flow in the brain." ;
  rdfs:subClassOf obo:VT_0000255 .

obo:VT_0008668 a rdfs:Class ;
  rdfs:label "interleukin-12b secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of the p40 cytokine subunit that is a component of both interleukin-12 and interleukin-23." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0002336 a rdfs:Class ;
  rdfs:label "pulmonary gas exchange trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the exchange of oxygen and carbon dioxide between the alveolar air and pulmonary capillary blood." ;
  rdfs:subClassOf obo:VT_0002322 .

obo:VT_0010480 a rdfs:Class ;
  rdfs:label "blood osteocalcin amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this protein found in bone and dentin, which is secreted by osteoblasts." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0010287 a rdfs:Class ;
  rdfs:label "milk lactose amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of lactose, the major sugar found in colostrum and milk; it is composed of one molecule of glucose and one molecule of galactose." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0006260 a rdfs:Class ;
  rdfs:label "gustatory papillae taste bud morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the taste buds located on the gustatory papillae, which includes the fungiform, foliate, and circumvallate papillae." ;
  rdfs:subClassOf obo:VT_0001002 .

obo:VT_0002329 a rdfs:Class ;
  rdfs:label "blood gas amount" ;
  rdfs:comment "The proportion, quantity, or volume of oxygen and carbon dioxide in whole blood, serum, or plasma." ;
  rdfs:subClassOf obo:VT_0010931 .

obo:VT_0010066 a rdfs:Class ;
  rdfs:label "Henle's loop morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the U-shaped portion of the renal tubule, consisting of descending and ascending limbs; situated between the proximal and distal convoluted tubules." ;
  rdfs:subClassOf obo:VT_0002703 , obo:VT_0003014 .

obo:VT_0011275 a rdfs:Class ;
  rdfs:label "meibomian gland ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the sebaceous glands embedded in the tarsal plate of each eyelid. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011274 .

obo:VT_0002455 a rdfs:Class ;
  rdfs:label "dendritic cell antigen presentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of dendritic cells to process and present antigen to T lymphocytes." ;
  rdfs:subClassOf obo:VT_0001835 , obo:VT_0002376 .

obo:VT_0010629 a rdfs:Class ;
  rdfs:label "bulbourethral gland mass" ;
  rdfs:comment "The amount of matter in the gland in males that lies along the prostate gland and secretes a fluid component of the seminal fluid into the urethra." ;
  rdfs:subClassOf obo:VT_0001170 .

obo:VT_1000685 a rdfs:Class ;
  rdfs:label "muscle pH regulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the relative acidity or alkalinity in the muscle, as measured by the concentration of hydrogen ion." ;
  rdfs:subClassOf obo:VT_0004043 .

obo:VT_0010760 a rdfs:Class ;
  rdfs:label "nitric oxide amount" ;
  rdfs:comment "The proportion, quantity, or volume in a body tissue or fluid of nitric oxide, the free radical oxide of nitrogen which functions in various physiological capacities." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0000055 a rdfs:Class ;
  rdfs:label "milk total mineral amount" ;
  rdfs:comment "The total proportion, quantity, or volume in milk of all inorganic elements or compounds that have importance in body functions." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0004080 a rdfs:Class ;
  rdfs:label "nucleus accumbens morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of neurons located at the head of the caudate nucleus and anterior to the putamen; these neurons normally are involved in sensations of pleasure and reactions to addictive substances." ;
  rdfs:subClassOf obo:VT_0004103 , obo:VT_0004166 .

obo:VT_0002176 a rdfs:Class ;
  rdfs:label "brain mass" ;
  rdfs:comment "The amount of matter in the brain, one of the two components of the central nervous system and the center of thought and emotion; controls coordination, bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.)." ;
  rdfs:subClassOf obo:VT_0000771 .

obo:VT_0001784 a rdfs:Class ;
  rdfs:label "fluid regulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the control of intracellular and/or extracellular fluid." ;
  rdfs:subClassOf obo:VT_0001764 .

obo:VT_0010113 a rdfs:Class ;
  rdfs:label "masticatory muscle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the muscles responsible for the movement of the jaws during mastication, including the masseter, temporalis, and medial and lateral pterygoid muscles." ;
  rdfs:subClassOf obo:VT_0003398 , obo:VT_0004234 .

obo:VT_0011006 a rdfs:Class ;
  rdfs:label "response to oxycodone trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of oxycodone exposure." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_1000782 a rdfs:Class ;
  rdfs:label "endocrine/exocrine system trait" ;
  rdfs:comment "Any measurable or observable characteristic of the system of glands that secrete hormones and other substances." ;
  rdfs:subClassOf obo:VT_0015074 .

obo:VT_0003855 a rdfs:Class ;
  rdfs:label "forelimb zeugopod morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the distal elements of the developing forelimb that will give rise to the radius and ulna." ;
  rdfs:subClassOf obo:VT_0006279 .

obo:VT_0004434 a rdfs:Class ;
  rdfs:label "cochlear outer hair cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cochlear OHCs which are known to enhance the performance of the cochlea, both qualitatively (increased selectivity) and quantitatively (increased sensitivity); in addition to the mechanoelectric transduction required for auditory sensation, OHCs also perform electromechanical transduction, whereby transmembrane voltage drives rapid changes in the length and stiffness of OHCs at audio frequencies in vitro (electromotility)." ;
  rdfs:subClassOf obo:VT_0004432 .

obo:VT_0010083 a rdfs:Class ;
  rdfs:label "frontal process of maxilla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upward extension from the body of the upper bony framework of the mouth, which articulates with the frontal bone." ;
  rdfs:subClassOf obo:VT_0000455 .

obo:VT_0010140 a rdfs:Class ;
  rdfs:label "small intestine mass" ;
  rdfs:comment "The amount of matter in the upper portion of the digestive tract, between the stomach and the large intestine." ;
  rdfs:subClassOf obo:VT_0000496 , obo:VT_0010196 .

obo:VT_0000383 a rdfs:Class ;
  rdfs:label "hair follicle orientation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the location or arrangement in relation to each other or the body of the tubular invaginations of the epidermis from which the hair shafts develop." ;
  rdfs:subClassOf obo:VT_0002076 .

obo:VT_0005249 a rdfs:Class ;
  rdfs:label "palatine bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of either of two irregularly shaped bones that form the back of the hard palate and help to form the nasal cavity and the floor of the orbits." ;
  rdfs:subClassOf obo:VT_0005246 , obo:VT_0005274 .

obo:VT_0003739 a rdfs:Class ;
  rdfs:label "auditory ossicle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of any of the small bones of the middle ear." ;
  rdfs:subClassOf obo:VT_0005105 .

obo:VT_0002347 a rdfs:Class ;
  rdfs:label "lymph node T cell domain morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the lymph node in which T lymphocytes reside." ;
  rdfs:subClassOf obo:VT_0002343 .

obo:VT_0001120 a rdfs:Class ;
  rdfs:label "uterus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the hollow muscular organ where the embryo/fetus develops." ;
  rdfs:subClassOf obo:VT_0001119 .

obo:VT_0002785 a rdfs:Class ;
  rdfs:label "Leydig cell quantity" ;
  rdfs:comment "The proportion or number of the testosterone-secreting cells in the interstitial area, between the seminiferous tubules, in the testis." ;
  rdfs:subClassOf obo:VT_0002786 .

obo:VT_0015047 a rdfs:Class ;
  rdfs:label "head development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the portion of the body containing the brain and organs of sight, hearing, taste, and smell during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0005382 .

obo:VT_0000737 a rdfs:Class ;
  rdfs:label "myotome development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the part of the somite that develops into the skeletal musculature." ;
  rdfs:subClassOf obo:VT_0000729 .

obo:VT_0010580 a rdfs:Class ;
  rdfs:label "kidney integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the paired organs responsible for urine excretion and regulation of ion concentrations." ;
  rdfs:subClassOf obo:VT_0002135 , obo:VT_0010783 .

obo:VT_0015085 a rdfs:Class ;
  rdfs:label "cerebellum vermis lobule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the region of a cerebellar lobule that resides in the central section of the cerebellum between the two hemispheres; in humans, vermis lobule regions may be nearly continuous with the cerebellar hemisphere lobules dorsally but are separated by deeper longitudinal fissures in the ventral regions; in mammals, the vermis portion of the cerebellum has a foliation pattern along the AP axis that is distinct from the lateral cerebellar hemispheres." ;
  rdfs:subClassOf obo:VT_0000864 .

obo:VT_1000047 a rdfs:Class ;
  rdfs:label "blood creatine kinase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the enzyme creatine kinase, which uses ATP to convert creatine to phosphocreatine and ADP; elevated levels are indicative of muscle damage." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0003094 a rdfs:Class ;
  rdfs:label "posterior stroma morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the posterior segment of the lamellated connective tissue layer of the cornea." ;
  rdfs:subClassOf obo:VT_0005300 .

obo:VT_0010308 a rdfs:Class ;
  rdfs:label "milk fatty acid C6:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a six-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0004762 a rdfs:Class ;
  rdfs:label "blood anti-double stranded DNA antibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies that recognize double stranded DNA." ;
  rdfs:subClassOf obo:VT_0004794 .

obo:VT_0010107 a rdfs:Class ;
  rdfs:label "hindlimb muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscles of the posterior extremities." ;
  rdfs:subClassOf obo:VT_0000556 , obo:VT_0010106 .

obo:VT_0006215 a rdfs:Class ;
  rdfs:label "optic disc morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the area in the retina where all of the axons of the ganglion cells exit the retina to form the optic nerve." ;
  rdfs:subClassOf obo:VT_0001330 , obo:VT_0002864 .

obo:VT_0002144 a rdfs:Class ;
  rdfs:label "B cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to morphology or physiology during the formation or differentiation of mature B cells, lymphocytes of B lineage with the phenotype CD19-positive and capable of B cell-mediated immunity." ;
  rdfs:subClassOf obo:VT_0002401 .

obo:VT_2000016 a rdfs:Class ;
  rdfs:label "obsolete venous return amount" ;
  rdfs:comment "OBSOLETE. The proportion, quantity, or volume of blood that enters the right heart from the vena cava." .

obo:VT_0002400 a rdfs:Class ;
  rdfs:label "multipotent stem cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the specialized cells that are committed to giving rise to cells with particular functions." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0003065 a rdfs:Class ;
  rdfs:label "liver copper amount" ;
  rdfs:comment "The proportion, quantity, or volume of copper present in liver tissue." ;
  rdfs:subClassOf obo:VT_0003952 , obo:VT_0010497 .

obo:VT_1000702 a rdfs:Class ;
  rdfs:label "udder cleft morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upward extension of the suspensory ligament separating the two halves of the udder." ;
  rdfs:subClassOf obo:VT_1000067 .

obo:VT_0003257 a rdfs:Class ;
  rdfs:label "abdominal wall morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the margins that enclose the abdominal cavity; the major part is muscular but also includes skin, subcutaneous fat, fascia and the parietal peritoneum." ;
  rdfs:subClassOf obo:VT_0003385 .

obo:VT_0010732 a rdfs:Class ;
  rdfs:label "head movement trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the motion of the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0001388 .

obo:VT_0008115 a rdfs:Class ;
  rdfs:label "dendritic cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of 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:VT_0001601 .

obo:VT_0010982 a rdfs:Class ;
  rdfs:label "blood L-phenylalanine amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the L-enantiomer of phenylalanine, an aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group." ;
  rdfs:subClassOf obo:VT_0005311 .

obo:VT_0002705 a rdfs:Class ;
  rdfs:label "kidney tubule size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the loops of Henle, proximal and distal convoluted tubules, and collecting ducts in the kidney." ;
  rdfs:subClassOf obo:VT_0002703 .

obo:VT_0004303 a rdfs:Class ;
  rdfs:label "Hensen cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the supporting cells that form the lateral border of the organ of Corti, immediately to the outer side of Deiters' cells." ;
  rdfs:subClassOf obo:VT_0004300 .

obo:VT_0003827 a rdfs:Class ;
  rdfs:label "Wolffian duct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the transient embryonic tubes that empty into the cloaca and differentiate into the vas deferens in the male in higher vertebrates." ;
  rdfs:subClassOf obo:VT_0003936 .

obo:VT_0008043 a rdfs:Class ;
  rdfs:label "natural killer cell quantity" ;
  rdfs:comment "The proportion or number of non-T, non-B lymphocytes, having a granular morphology and which are important in innate immunity to viruses and other intracellular pathogens; in addition, these cells can kill certain tumor cells." ;
  rdfs:subClassOf obo:VT_0000717 , obo:VT_0005068 .

obo:VT_0001067 a rdfs:Class ;
  rdfs:label "mandibular nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the third division of the trigeminal nerve." ;
  rdfs:subClassOf obo:VT_0001065 .

obo:VT_0000455 a rdfs:Class ;
  rdfs:label "maxilla morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the upper bony framework of the mouth where the superior teeth are held." ;
  rdfs:subClassOf obo:VT_0000454 , obo:VT_0005274 .

obo:VT_0003144 a rdfs:Class ;
  rdfs:label "otolith quantity" ;
  rdfs:comment "The proportion or number of the crystalline calciferous particles adhering to the otolithic membrane." ;
  rdfs:subClassOf obo:VT_0002894 .

obo:VT_0005545 a rdfs:Class ;
  rdfs:label "lens development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the transparent structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0001003 a rdfs:Class ;
  rdfs:label "olfactory receptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the proteins, usually projecting from the cilia of olfactory receptor neurons, that specifically bind odorant molecules and trigger responses in the specialized neurons of the olfactory epithelium." ;
  rdfs:subClassOf obo:VT_0005499 , obo:VT_0006092 .

obo:VT_0010673 a rdfs:Class ;
  rdfs:label "tarsometatarsus length" ;
  rdfs:comment "The distance from point to point along the longest axis of the long bone in the lower leg of birds, formed by fusion of tarsal and metatarsal structures." ;
  rdfs:subClassOf obo:VT_0010671 .

obo:VT_0003127 a rdfs:Class ;
  rdfs:label "clitoris morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small, erectile body located at the anterior end of the vulva." ;
  rdfs:subClassOf obo:VT_0003126 .

obo:VT_0000365 a rdfs:Class ;
  rdfs:label "hearing electrophysiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes involved in auditory function as it relates to electrical phenomena." ;
  rdfs:subClassOf obo:VT_0002104 .

obo:VT_0000488 a rdfs:Class ;
  rdfs:label "intestinal epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cellular avascular layer of the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0000511 .

obo:VT_0002216 a rdfs:Class ;
  rdfs:label "seminiferous tubule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tubules in the testes where spermatogenesis occurs." ;
  rdfs:subClassOf obo:VT_0001146 .

obo:VT_0000852 a rdfs:Class ;
  rdfs:label "cerebellum size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the part of the metencephalon that lies in the posterior cranial fossa dorsal to the pons and medulla that is concerned with the coordination of movement and learning of motor skills." ;
  rdfs:subClassOf obo:VT_0000849 .

obo:VT_0008757 a rdfs:Class ;
  rdfs:label "T cell receptor gamma chain V-J recombination trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process by which V and J gene segments of the T cell receptor gamma chain are recombined." ;
  rdfs:subClassOf obo:VT_0008754 .

obo:VT_0003154 a rdfs:Class ;
  rdfs:label "soft palate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the musculomembranous fold that partly separates the mouth and pharynx, located behind the hard palate." ;
  rdfs:subClassOf obo:VT_0003755 .

obo:VT_0011163 a rdfs:Class ;
  rdfs:label "cerebral artery ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in any of the arteries which irrigate the cerebrum of the brain. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011162 , obo:VT_0011176 .

obo:VT_0011096 a rdfs:Class ;
  rdfs:label "stomach molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0000470 .

obo:VT_0010377 a rdfs:Class ;
  rdfs:label "milk free calcium amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of unlinked/unassociated calcium in ionic form." ;
  rdfs:subClassOf obo:VT_0010376 .

obo:VT_0004100 a rdfs:Class ;
  rdfs:label "spinal cord interneuron morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of neurons that exclusively interact with other neurons in the spinal cord." ;
  rdfs:subClassOf obo:VT_0000955 , obo:VT_0006004 .

obo:VT_0010540 a rdfs:Class ;
  rdfs:label "urine creatinine amount" ;
  rdfs:comment "The proportion, quantity, or volume in urine of this product of creatine catabolism." ;
  rdfs:subClassOf obo:VT_0001757 .

obo:VT_0004182 a rdfs:Class ;
  rdfs:label "spermiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process in which mature spermatozoa are released from supporting Sertoli cells into spermiduct or vas deferens." ;
  rdfs:subClassOf obo:VT_0001932 .

obo:VT_0010098 a rdfs:Class ;
  rdfs:label "osteoclast quantity" ;
  rdfs:comment "The proportion or number of large, multinucleated cells that function in the absorption and removal of osseous tissue." ;
  rdfs:subClassOf obo:VT_0010095 .

obo:VT_0010464 a rdfs:Class ;
  rdfs:label "fertility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability to produce live offspring." ;
  rdfs:subClassOf obo:VT_0001919 .

obo:VT_0004415 a rdfs:Class ;
  rdfs:label "cochlear nerve compound action potential" ;
  rdfs:comment "The combined potentials resulting from activation of the auditory division of the eighth cranial nerve." ;
  rdfs:subClassOf obo:VT_0000365 , obo:VT_0000483 , obo:VT_0005402 .

obo:VT_0000895 a rdfs:Class ;
  rdfs:label "obsolete cochlear inner hair cell afferent innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of afferent terminals and/or their synapses in the cochlear IHC region.
consider: VT:0010155, VT:0010185""" .

obo:VT_0010971 a rdfs:Class ;
  rdfs:label "blood L-glutamic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of an optically active form of glutamic acid (an alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2) having L-configuration." ;
  rdfs:subClassOf obo:VT_0011221 .

obo:VT_0010418 a rdfs:Class ;
  rdfs:label "CD8-positive, CD25-positive, alpha-beta regulatory T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD8-positive, alpha-beta-positive, FoxP3-positive T cell with suppressor function." ;
  rdfs:subClassOf obo:VT_0008398 .

obo:VT_0010342 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-9,trans-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a cis double bond at C-9, and a trans double bond at C-12." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0000079 a rdfs:Class ;
  rdfs:label "basilar bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the basilar process of the occipital bone in the base of the cranium, frequently forming a direct part of the occipital in the adult, but usually distinct in the young." ;
  rdfs:subClassOf obo:VT_0005269 .

obo:VT_0008245 a rdfs:Class ;
  rdfs:label "alveolar macrophage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the round, granular, mononuclear phagocytes found in the alveoli of the lungs which ingest small inhaled particles resulting in degradation and presentation of the antigen to immunocompetent cells." ;
  rdfs:subClassOf obo:VT_0002270 , obo:VT_0002446 .

obo:VT_0010241 a rdfs:Class ;
  rdfs:label "reticulo-rumen capacity" ;
  rdfs:comment "The volume of or amount contained in the forestomach of ruminants, composed of the reticulum and the rumen which communicates anteriorly with the esophagus and posteriorly with the omasum." ;
  rdfs:subClassOf obo:VT_0010236 , obo:VT_0010240 .

obo:VT_0005257 a rdfs:Class ;
  rdfs:label "intraocular pressure" ;
  rdfs:comment "The amount of force per unit area exerted by the intraocular fluid within the eye." ;
  rdfs:subClassOf obo:VT_0005253 .

obo:VT_0005029 a rdfs:Class ;
  rdfs:label "amnion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the innermost layer of the extraembryonic membranes." ;
  rdfs:subClassOf obo:VT_0002086 .

obo:VT_0004267 a rdfs:Class ;
  rdfs:label "optic tract morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the paired bands of optic nerve fibers running from the optic chiasma to the lateral geniculate body and midbrain." ;
  rdfs:subClassOf obo:VT_0000778 .

obo:VT_0010748 a rdfs:Class ;
  rdfs:label "stereotypic behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic of behavior related to repetitive, invariant, perseverative motor patterns that do not appear to be purposeful." ;
  rdfs:subClassOf obo:VT_0010444 .

obo:VT_0010207 a rdfs:Class ;
  rdfs:label "duodenum muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the muscle layer of the first division of the small intestine that extends from the pyloris to the junction with the jejunum." ;
  rdfs:subClassOf obo:VT_0003271 .

obo:VT_0003477 a rdfs:Class ;
  rdfs:label "nerve fiber response trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter the electrophysiological recordings from the elongated processes of neurons over time or as a result of internal or external influences." ;
  rdfs:subClassOf obo:VT_0002272 .

obo:VT_0015058 a rdfs:Class ;
  rdfs:label "brain physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the functions of or processes in the brain, one of the two components of the central nervous system and the center of thought and emotion; controls coordination, bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.)." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0010681 a rdfs:Class ;
  rdfs:label "lactate dehydrogenase activity" ;
  rdfs:comment "The degree of function or response of the enzyme that catalyzes the oxidation of lactate to pyruvate." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0010945 a rdfs:Class ;
  rdfs:label "cardiac muscle capillary amount" ;
  rdfs:comment "The proportion or number in cardiac muscle of the small branching blood vessels that connect arterioles and venules." ;
  rdfs:subClassOf obo:VT_0000087 .

obo:VT_0001329 a rdfs:Class ;
  rdfs:label "retina cell quantity" ;
  rdfs:comment "The proportion or number of cells in the thin layer of neural tissue lining the back of the eyeball which contains visual receptors." ;
  rdfs:subClassOf obo:VT_0001325 .

obo:VT_0010442 a rdfs:Class ;
  rdfs:label "behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic of the actions or reactions of organisms." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0000632 a rdfs:Class ;
  rdfs:label "pineal gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the pineal gland, a midline, cone-like structure located in the dorso-caudal roof of the third ventricle, attached by peduncles to the habenular and posterior commissures,  which produces melatonin." ;
  rdfs:subClassOf obo:VT_0000631 , obo:VT_0000840 .

obo:VT_0011313 a rdfs:Class ;
  rdfs:label "viable fetus quantity" ;
  rdfs:comment "The proportion or number of fetuses that have attained such form and development of organs as to be normally capable of survival." ;
  rdfs:subClassOf obo:VT_0011312 .

obo:VT_0010215 a rdfs:Class ;
  rdfs:label "jejunum mucosa thickness" ;
  rdfs:comment "The distance between the surfaces of the mucosal layer lining the portion of the small intestine that extends from the duodenum to the ileum." ;
  rdfs:subClassOf obo:VT_0004002 , obo:VT_0010222 .

obo:VT_0011222 a rdfs:Class ;
  rdfs:label "blood cholinesterase amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of any of the enzymes that catalyze the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0010641 a rdfs:Class ;
  rdfs:label "renal artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of either or both of the laterally paired arteries that supply the kidneys." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0001516 a rdfs:Class ;
  rdfs:label "motor coordination/balance trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of an animal to maintain skillful and effective interaction of movements or maintenance of equilibrium." ;
  rdfs:subClassOf obo:VT_0010444 .

obo:VT_0006028 a rdfs:Class ;
  rdfs:label "bronchiole branching trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphogenesis of the bronchioles." ;
  rdfs:subClassOf obo:VT_0001176 .

obo:VT_0100028 a rdfs:Class ;
  rdfs:label "nipple diameter" ;
  rdfs:comment "The distance across the erectile protuberance at the tip of the mammary gland in which the mammary ducts terminate and from which milk can be secreted." ;
  rdfs:subClassOf obo:VT_0010933 .

obo:VT_0004394 a rdfs:Class ;
  rdfs:label "cochlear inner hair cell quantity" ;
  rdfs:comment "The proportion or number of the flask-shaped inner hair sensory cells of the organ of Corti which are in synaptic contact with sensory as well as efferent fibers of the auditory nerve." ;
  rdfs:subClassOf obo:VT_0004393 .

obo:VT_0003737 a rdfs:Class ;
  rdfs:label "outer ear cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the nonvascular, resilient, flexible connective tissue of the external portion of the organ of hearing." ;
  rdfs:subClassOf obo:VT_0000163 , obo:VT_0002177 .

obo:VT_0011261 a rdfs:Class ;
  rdfs:label "cerebellum ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the part of the metencephalon that lies in the posterior cranial fossa dorsal to the pons and medulla that is concerned with the coordination of movement and learning of motor skills. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010791 , obo:VT_0011260 .

obo:VT_0001083 a rdfs:Class ;
  rdfs:label "geniculate ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the intermediate nerve fibers associated with the facial nerve." ;
  rdfs:subClassOf obo:VT_0001082 .

obo:VT_0003592 a rdfs:Class ;
  rdfs:label "urethra width" ;
  rdfs:comment "The distance from side to side of the canal that leads from the bladder and discharges urine externally." ;
  rdfs:subClassOf obo:VT_0003594 .

obo:VT_0002104 a rdfs:Class ;
  rdfs:label "hearing physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes involved in the perception of sound." ;
  rdfs:subClassOf obo:VT_0003633 , obo:VT_0003878 , obo:VT_0015093 .

obo:VT_0010366 a rdfs:Class ;
  rdfs:label "milk fatty acid C20:5(n-3) amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated, omega-3 fatty acid with a twenty-carbon backbone and five double bonds." ;
  rdfs:subClassOf obo:VT_0010322 , obo:VT_0010374 .

obo:VT_0010453 a rdfs:Class ;
  rdfs:label "abdominal wall mass" ;
  rdfs:comment "The amount of matter in the margins that enclose the abdominal cavity; the major part is muscular but also includes skin, subcutaneous fat, fascia and the parietal peritoneum." ;
  rdfs:subClassOf obo:VT_0003257 .

obo:VT_0000039 a rdfs:Class ;
  rdfs:label "otic capsule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cartilage or bony capsule surrounding the inner ear mechanism." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0011011 a rdfs:Class ;
  rdfs:label "muscle potassium amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of potassium, an alkaline metallic element." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0003228 a rdfs:Class ;
  rdfs:label "sinus venosus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the cavity at the caudal end of the embryonic cardiac tube in which the veins from the intra- and extraembryonic circulatory arcs unite; in the adult this becomes the portion of the right atrium known as the sinus of the vena cava." ;
  rdfs:subClassOf obo:VT_0000267 .

obo:VT_0004256 a rdfs:Class ;
  rdfs:label "placenta maternal decidual layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the maternal uterine-derived portion of the placenta." ;
  rdfs:subClassOf obo:VT_0001711 .

obo:VT_0002364 a rdfs:Class ;
  rdfs:label "thymus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the primary lymphoid organ that is required for the maturation of T cells." ;
  rdfs:subClassOf obo:VT_0000703 , obo:VT_0002221 .

obo:VT_0010403 a rdfs:Class ;
  rdfs:label "cervical opening shape trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical form or contours of the external os cervix." ;
  rdfs:subClassOf obo:VT_0001135 .

obo:VT_0002739 a rdfs:Class ;
  rdfs:label "olfactory bulb development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the olfactory bulb during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0000934 .

obo:VT_0010360 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-10,trans-12-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-10 and C-12." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0010185 a rdfs:Class ;
  rdfs:label "cochlear inner hair cell afferent nerve fiber quantity" ;
  rdfs:comment "The proportion or number of afferent terminals and/or their synapses in the cochlear IHC region." ;
  rdfs:subClassOf obo:VT_0004393 .

obo:VT_0008723 a rdfs:Class ;
  rdfs:label "eosinophil recruitment trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the diffusion or accumulation of eosinophils (granular leukocytes having a two-lobed nucleus and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin) in tissues or cells in response to a wide variety of substances released at the sites of inflammatory reactions." ;
  rdfs:subClassOf obo:VT_0002465 .

obo:VT_0010331 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-5-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a trans double bond at C-5." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0003112 a rdfs:Class ;
  rdfs:label "parathyroid gland size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the two small, paired endocrine glands, usually found embedded in the connective tissue capsule on the posterior surface of the thyroid gland; they secrete parathyroid hormone (PTH) that regulates calcium and phosphorus metabolism." ;
  rdfs:subClassOf obo:VT_0000678 .

obo:VT_0003501 a rdfs:Class ;
  rdfs:label "iodide oxidation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to thyroid function in oxidation and organification of iodide." ;
  rdfs:subClassOf obo:VT_0002876 .

obo:VT_0006071 a rdfs:Class ;
  rdfs:label "retinal progenitor cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cells that give rise to the various cells of the retina." ;
  rdfs:subClassOf obo:VT_0001286 .

obo:VT_0000704 a rdfs:Class ;
  rdfs:label "thymus development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the primary lymphoid organ that is required for maturation of T cells." ;
  rdfs:subClassOf obo:VT_0002450 , obo:VT_0010255 .

obo:VT_0000182 a rdfs:Class ;
  rdfs:label "blood flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the movement of blood within a vessel or tissue." ;
  rdfs:subClassOf obo:VT_0000175 .

obo:VT_0003134 a rdfs:Class ;
  rdfs:label "late pro-B cell quantity" ;
  rdfs:comment "The proportion or number of the cells in the B lymphocyte lineage that undergo V-DJ rearrangement of the immunoglobulin heavy chain." ;
  rdfs:subClassOf obo:VT_0005020 , obo:VT_0008208 .

obo:VT_0004109 a rdfs:Class ;
  rdfs:label "Sertoli cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the cells of the seminiferous tubules that create the blood-testes barrier and enable spermatogenesis." ;
  rdfs:subClassOf obo:VT_0003830 .

obo:VT_0010905 a rdfs:Class ;
  rdfs:label "brain oxygen amount" ;
  rdfs:comment "The proportion, quantity, or volume of oxygen in the brain." ;
  rdfs:subClassOf obo:VT_0010904 .

obo:VT_0010005 a rdfs:Class ;
  rdfs:label "bone development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of a portion of osseous tissue forming a part of the skeleton; consists of a dense outer layer surrounded by the periosteum, and an inner spongy substance." ;
  rdfs:subClassOf obo:VT_0010065 .

obo:VT_0008048 a rdfs:Class ;
  rdfs:label "memory T cell quantity" ;
  rdfs:comment "The proportion or number of distinctly differentiated long-lived T cells that have the phenotype CD45RO-positive and CD127-positive." ;
  rdfs:subClassOf obo:VT_0006385 , obo:VT_0006387 .

<https://w3id.org/linkml/Any> a rdfs:Class ;
  rdfs:comment "An unconstrained type or object" .

obo:VT_0010701 a rdfs:Class ;
  rdfs:label "blood chylomicron triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of triglyceride (any of a group of lipids that are esters formed from one molecule of glycerol and three molecules of one or more fatty acids, are widespread in adipose tissue, and commonly circulate in the blood in the form of lipoproteins) carried in chylomicron molecules in a specified volume of blood. Chylomicrons are a class of lipoproteins that transport exogenous triglycerides and cholesterol from the small intestine to other tissues." ;
  rdfs:subClassOf obo:VT_0002644 .

obo:VT_0010883 a rdfs:Class ;
  rdfs:label "muscle triglyceride amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of this molecule, glycerol esterified at each of its three hydroxyl groups by a fatty acid." ;
  rdfs:subClassOf obo:VT_0000187 , obo:VT_0010021 .

obo:VT_0003728 a rdfs:Class ;
  rdfs:label "retinal photoreceptor layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the layer of light-sensitive receptors in the eye." ;
  rdfs:subClassOf obo:VT_0006069 .

obo:VT_0002067 a rdfs:Class ;
  rdfs:label "sensation behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism in response to a sensory stimulus; a sensory stimulus is any change in the external environment that is perceived and processed by any of the faculties by which outside stimuli are perceived." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0008357 a rdfs:Class ;
  rdfs:label "CD4-positive, gamma-delta intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD4-positive, gamma-delta T cell of the columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0008349 .

obo:VT_0002444 a rdfs:Class ;
  rdfs:label "T cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in lymphocytes that are responsible for cell-mediated immunity and immune system regulation." ;
  rdfs:subClassOf obo:VT_0003945 .

obo:VT_0008701 a rdfs:Class ;
  rdfs:label "interleukin-5 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a cytokine that promotes differentiation and activation of eosinophils; it also triggers activated B-cells to differentiate into immunoglobulin-secreting cells." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0002918 a rdfs:Class ;
  rdfs:label "paired-pulse facilitation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the response of central synapses when activated twice in rapid succession." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0011114 a rdfs:Class ;
  rdfs:label "inferior alveolar nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the inferior alveolar nerve, the branch of the mandibular nerve responsible for sensory innervation to the gingivae on the lower jaw." ;
  rdfs:subClassOf obo:VT_0001067 .

obo:VT_0011264 a rdfs:Class ;
  rdfs:label "blood plasma ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in blood plasma, the liquid component of blood which has blood cells and platelets removed from it. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011031 .

obo:VT_0000830 a rdfs:Class ;
  rdfs:label "diencephalon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired caudal parts of the prosencephalon from which the thalamus, hypothalamus, epithalamus and subthalamus are derived; these regions regulate autonomic, visceral and endocrine function, and process information directed to the cerebral cortex." ;
  rdfs:subClassOf obo:VT_0000783 .

obo:VT_0004115 a rdfs:Class ;
  rdfs:label "sinoatrial node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the small mass of modified cardiac muscle fibers located at the junction of the superior vena cava and the right atrium that is the source of contraction impulses for the heart." ;
  rdfs:subClassOf obo:VT_0000019 , obo:VT_0004123 .

obo:VT_0010298 a rdfs:Class ;
  rdfs:label "heart ventricle size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lower chamber(s) of the heart." ;
  rdfs:subClassOf obo:VT_0005294 , obo:VT_0005406 .

obo:VT_0004185 a rdfs:Class ;
  rdfs:label "adipocyte glucose uptake trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of fat-storing cells to take in the monosaccharide that is the end product of carbohydrate digestion; D-glucose serves as a primary energy source for living organisms." ;
  rdfs:subClassOf obo:VT_0005666 .

obo:VT_0010355 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-11,cis-13-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone, a trans double bond at C-11, and a cis double bond at C-13." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0004289 a rdfs:Class ;
  rdfs:label "bony labyrinth morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the series of cavities (cochlea, vestibule, and semicircular canals) contained within the otic capsule of the petrous portion of the temporal bone; the bony labyrinth is filled with perilymph, in which the delicate, endolymph-filled membranous labyrinth is suspended." ;
  rdfs:subClassOf obo:VT_0000026 .

obo:VT_0000142 a rdfs:Class ;
  rdfs:label "outer ear thickness" ;
  rdfs:comment "The distance between the exterior surface and the interior surface of the auricle." ;
  rdfs:subClassOf obo:VT_0000017 .

obo:VT_0002257 a rdfs:Class ;
  rdfs:label "arytenoid cartilage morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the paired triangular cartilages located postlaterally at the level of the thyroid cartilage." ;
  rdfs:subClassOf obo:VT_0002256 .

obo:VT_0010320 a rdfs:Class ;
  rdfs:label "milk fatty acid C22:0 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of a saturated fatty acid with a twenty-two-carbon backbone." ;
  rdfs:subClassOf obo:VT_0010304 .

obo:VT_0003407 a rdfs:Class ;
  rdfs:label "central nervous system regeneration trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of central nervous system tissue to regenerate following injury or disease." ;
  rdfs:subClassOf obo:VT_0003633 .

obo:VT_0001983 a rdfs:Class ;
  rdfs:label "olfactory system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the organs involved in smell." ;
  rdfs:subClassOf obo:VT_0005394 .

obo:VT_0100017 a rdfs:Class ;
  rdfs:label "circulatory system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic pertaining to the function of or processes in the system that moves extracellular fluids to and from tissues." ;
  rdfs:subClassOf obo:VT_1000784 .

obo:VT_0001805 a rdfs:Class ;
  rdfs:label "blood immunoglobulin G amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the major antibody for antitoxins, viruses, and bacteria; also activates complement." ;
  rdfs:subClassOf obo:VT_0002460 .

obo:VT_0003484 a rdfs:Class ;
  rdfs:label "channel response trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity to change, adjust, or alter the electrophysiological recordings from ion channels over time or as a result of internal or external influences." ;
  rdfs:subClassOf obo:VT_0002272 , obo:VT_0003635 .

obo:VT_0000765 a rdfs:Class ;
  rdfs:label "tongue squamous epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the scaly epithelial layer of the tongue." ;
  rdfs:subClassOf obo:VT_0000764 .

obo:VT_0011327 a rdfs:Class ;
  rdfs:label "semen trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the substance that is composed of sperm cells suspended in seminal fluid." ;
  rdfs:subClassOf obo:VT_0011326 .

obo:VT_0007088 a rdfs:Class ;
  rdfs:label "heart right ventricle wall thickness" ;
  rdfs:comment "The distance between the surfaces of the wall of the right lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0003920 .

obo:VT_0008197 a rdfs:Class ;
  rdfs:label "follicular dendritic cell physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in a cell with extensive dendritic processes found in the B cell areas (primary follicles and germinal centers) of lymphoid tissue; follicular dendritic cells have Fc receptors and C3b receptors, and hold antigen in the form of immune complexes on their surfaces for long periods and can present antigen to B cells during an immune response." ;
  rdfs:subClassOf obo:VT_0001819 .

obo:VT_0011349 a rdfs:Class ;
  rdfs:label "udder integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the organ in certain species containing two or more mammary glands, each with its own nipple." ;
  rdfs:subClassOf obo:VT_1000067 .

obo:VT_0010894 a rdfs:Class ;
  rdfs:label "colon molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the portion of the large intestine between the cecum and the rectum." ;
  rdfs:subClassOf obo:VT_0000495 .

obo:VT_0002239 a rdfs:Class ;
  rdfs:label "nasal septum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the structure that separates the two nasal cavities." ;
  rdfs:subClassOf obo:VT_0002233 .

obo:VT_0010587 a rdfs:Class ;
  rdfs:label "blood phytosterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a plant-derived steroid with one OH group." ;
  rdfs:subClassOf obo:VT_0010582 .

obo:VT_0010163 a rdfs:Class ;
  rdfs:label "obsolete interleukin-2 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of this cytokine released by helper T cells that stimulates proliferation of T lymphocytes and activated B lymphocytes." .

obo:VT_0010345 a rdfs:Class ;
  rdfs:label "milk fatty acid trans-9,trans-14-C18:2 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and trans double bonds at C-9 and C-14." ;
  rdfs:subClassOf obo:VT_0010374 .

obo:VT_0001078 a rdfs:Class ;
  rdfs:label "phrenic nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the motor and sensory neuron axons that project to the diaphragm and other tissues." ;
  rdfs:subClassOf obo:VT_0001077 .

obo:VT_0002903 a rdfs:Class ;
  rdfs:label "blood parathyroid hormone amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of this regulator of calcium and phosphorus concentration." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0000002 a rdfs:Class ;
  rdfs:label "head size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the portion of the body containing the brain and organs of sight, hearing, taste, and smell." ;
  rdfs:subClassOf obo:VT_0000432 .

obo:VT_0011302 a rdfs:Class ;
  rdfs:label "facial nerve molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the 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:VT_0001071 .

obo:VT_0006025 a rdfs:Class ;
  rdfs:label "Reissner membrane size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the Reissner's membrane which separates the cochlear duct from the vestibular canal, i.e. the endolymph of the scala media from the perilymph of the scala vestibuli; the Reissner membrane consists of squamous epithelial cells with microvilli toward the ductus, a basement membrane, and a thin layer of connective tissue toward the scala." ;
  rdfs:subClassOf obo:VT_0006021 .

obo:VT_0003140 a rdfs:Class ;
  rdfs:label "heart atrium size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the upper chamber(s) of the heart that receive blood from the vasculature and send blood into a ventricle." ;
  rdfs:subClassOf obo:VT_0003105 , obo:VT_0005406 .

obo:VT_0000013 a rdfs:Class ;
  rdfs:label "adipose distribution trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the placement of fat-storing cells/tissue on the body." ;
  rdfs:subClassOf obo:VT_0000003 .

obo:VT_0008463 a rdfs:Class ;
  rdfs:label "peripheral lymph node morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the lymph nodes located outside the thoracic and abdominal cavities, such as the submandibular, prescapular, axillary, inguinal and popliteal lymph nodes." ;
  rdfs:subClassOf obo:VT_0002339 .

obo:VT_0002983 a rdfs:Class ;
  rdfs:label "retinal ganglion cell quantity" ;
  rdfs:comment "The proportion or number of cells in the innermost nuclear layer of the retina, which projects axons through the optic nerve to the brain." ;
  rdfs:subClassOf obo:VT_0000965 , obo:VT_0005241 .

obo:VT_1000165 a rdfs:Class ;
  rdfs:label "milk protein amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of macromolecules consisting of long sequences of amino acids in peptide linkage." ;
  rdfs:subClassOf obo:VT_0011350 .

obo:VT_0004457 a rdfs:Class ;
  rdfs:label "orbitosphenoid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bone that is situated in the orbit on either side of the presphenoid; it generally forms a part of the sphenoid in the adult, and may be independent in the young." ;
  rdfs:subClassOf obo:VT_0000104 .

obo:VT_0010796 a rdfs:Class ;
  rdfs:label "lung ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the lung. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010795 .

obo:VT_0011073 a rdfs:Class ;
  rdfs:label "urinary bladder ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume distensible musculomembranous bag for holding urine. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011072 .

obo:VT_0001245 a rdfs:Class ;
  rdfs:label "dermis thickness" ;
  rdfs:comment "The distance between the surfaces of the layer of skin deep to the epidermis, consisting of a dense bed of vascular connective tissue." ;
  rdfs:subClassOf obo:VT_0001243 .

obo:VT_0003574 a rdfs:Class ;
  rdfs:label "oviduct morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the tube through which the ova pass from the ovary to the uterus (mammals) or to the outside (fish, birds)." ;
  rdfs:subClassOf obo:VT_0001119 .

obo:VT_0002358 a rdfs:Class ;
  rdfs:label "spleen periarteriolar lymphoid sheath morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the area of the spleen within the marginal sinus in which T cells surround the central arteriole." ;
  rdfs:subClassOf obo:VT_0002357 .

obo:VT_0005007 a rdfs:Class ;
  rdfs:label "bone mineral mass" ;
  rdfs:comment "The amount of matter in the minerals (inorganic elements or compounds that have importance in body functions) in osseous tissue forming a part of the skeleton." ;
  rdfs:subClassOf obo:VT_1000111 .

obo:VT_0003084 a rdfs:Class ;
  rdfs:label "skeletal muscle fiber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the skeletal muscle fibers, the large multinucleated cells that make up the striated muscles connected at either or both extremities with the bony framework of the body." ;
  rdfs:subClassOf obo:VT_0000759 , obo:VT_0004087 .

obo:VT_0010669 a rdfs:Class ;
  rdfs:label "longissimus thoracis width" ;
  rdfs:comment "The distance from side to side of the muscle of the back which is the intermediate and largest of the continuations of the Sacrospinalis." ;
  rdfs:subClassOf obo:VT_0010117 .

obo:VT_0008037 a rdfs:Class ;
  rdfs:label "T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of lymphocytes that are responsible for cell-mediated immunity and immune system regulation." ;
  rdfs:subClassOf obo:VT_0002619 .

obo:VT_0011008 a rdfs:Class ;
  rdfs:label "muscle magnesium amount" ;
  rdfs:comment "The proportion, quantity, or volume in muscle of  this alkaline earth element, atomic number 12, atomic symbol Mg." ;
  rdfs:subClassOf obo:VT_0010652 .

obo:VT_0010533 a rdfs:Class ;
  rdfs:label "passive avoidance behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions of an organism pertaining to the ability to enter a hostile environment where it receives an unpleasant or punishing stimulus applied previously with prolonged latency." ;
  rdfs:subClassOf obo:VT_0010528 .

obo:VT_0011338 a rdfs:Class ;
  rdfs:label "tail circumference" ;
  rdfs:comment "The distance around the appendage at the caudal end of the vertebral column." ;
  rdfs:subClassOf obo:VT_0003456 .

obo:VT_0010923 a rdfs:Class ;
  rdfs:label "cerebral cortex integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the grey matter on the surface of the cerebral hemisphere that develops from the telencephalon and folds into gyri; it is responsible for intellectual faculties and higher mental functions." ;
  rdfs:subClassOf obo:VT_0000788 , obo:VT_0010549 .

obo:VT_0000712 a rdfs:Class ;
  rdfs:label "vestibular hair cell development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the hair cells in the sensory epithelium of the maculae and cristae of the membranous labyrinth of the inner ear." ;
  rdfs:subClassOf obo:VT_0003938 .

obo:VT_0003844 a rdfs:Class ;
  rdfs:label "squamosal suture morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the articulation of the squamous portion of the temporal bones with the parietal bones." ;
  rdfs:subClassOf obo:VT_0002835 .

obo:VT_0010218 a rdfs:Class ;
  rdfs:label "jejunum crypt of Lieberkuhn width" ;
  rdfs:comment "The distance from side to side of the straight tubular glands located in the epithelial layer of the intestine between the bases of the villi of the jejunum." ;
  rdfs:subClassOf obo:VT_0000490 , obo:VT_0004002 , obo:VT_0010222 .

obo:VT_0002551 a rdfs:Class ;
  rdfs:label "blood coagulation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the sequential process by which the multiple coagulation factors of the blood interact, ultimately resulting in the formation of an insoluble fibrin clot; it may be divided into three stages: stage 1, the formation of intrinsic and extrinsic prothrombin converting principle; stage 2, the formation of thrombin; stage 3, the formation of stable fibrin polymers." ;
  rdfs:subClassOf obo:VT_0000260 .

obo:VT_0000469 a rdfs:Class ;
  rdfs:label "esophageal squamous epithelium morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the scaly epithelial layer of the part of the digestive canal through which food passes from the pharynx to the stomach." ;
  rdfs:subClassOf obo:VT_0000468 .

obo:VT_0005303 a rdfs:Class ;
  rdfs:label "urinary bladder physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the distensible musculomembranous bag for holding urine." ;
  rdfs:subClassOf obo:VT_0005502 .

obo:VT_0000573 a rdfs:Class ;
  rdfs:label "hind paw size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical dimensions of the rear feet." ;
  rdfs:subClassOf obo:VT_0004271 .

obo:VT_0010634 a rdfs:Class ;
  rdfs:label "peptide metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving peptides (compounds of two or more amino acids in which a carboxyl group of one is united with an amino group of another." ;
  rdfs:subClassOf obo:VT_0002121 .

obo:VT_0010740 a rdfs:Class ;
  rdfs:label "skin potassium amount" ;
  rdfs:comment "The proportion, quantity, or volume in the skin of the monovalent cation of this alkali metal element." ;
  rdfs:subClassOf obo:VT_0010738 .

obo:VT_0011044 a rdfs:Class ;
  rdfs:label "thoracic aorta ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the thoracic aorta, the part of the descending aorta superior to the aortic hiatus of the diaphragm. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010568 , obo:VT_0011176 .

obo:VT_0003083 a rdfs:Class ;
  rdfs:label "tibialis anterior morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscle of the shin that is responsible for dorsiflexion and inversion of the foot." ;
  rdfs:subClassOf obo:VT_0010107 .

obo:VT_0001314 a rdfs:Class ;
  rdfs:label "cornea clarity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the degree of transparency of the transparent anterior portion of the fibrous coat of the eye that serves as the chief refractory structure." ;
  rdfs:subClassOf obo:VT_0001312 .

obo:VT_0010034 a rdfs:Class ;
  rdfs:label "immune serum protein amount" ;
  rdfs:comment "The proportion, quantity, or volume of circulating proteins involved in the body's defense against foreign organisms or substances and aberrant native cells." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0001250 a rdfs:Class ;
  rdfs:label "dermis stratum papillare morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the outer layer of the dermis, characterized by ridges or papillae protruding into the epidermis." ;
  rdfs:subClassOf obo:VT_0001243 .

obo:VT_0003833 a rdfs:Class ;
  rdfs:label "satellite cell quantity" ;
  rdfs:comment "The proportion or number of unfused, spindle-shaped cells in skeletal muscle that play a role in muscle repair and regeneration." ;
  rdfs:subClassOf obo:VT_0010119 .

obo:VT_0002751 a rdfs:Class ;
  rdfs:label "autonomic nervous system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the neuronal regulatory system for the viscera, the smooth muscles of the body and exocrine glands." ;
  rdfs:subClassOf obo:VT_0003632 .

obo:VT_0003945 a rdfs:Class ;
  rdfs:label "lymphocyte physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in any of the white blood cells that include B cells, T cells, and NK cells." ;
  rdfs:subClassOf obo:VT_0002442 .

obo:VT_0010554 a rdfs:Class ;
  rdfs:label "intestine integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0000477 .

obo:VT_0001661 a rdfs:Class ;
  rdfs:label "total life span" ;
  rdfs:comment "The full period of time from birth to death of an organism." ;
  rdfs:subClassOf obo:VT_0005372 .

obo:VT_0010908 a rdfs:Class ;
  rdfs:label "urine copper amount" ;
  rdfs:comment "The proportion, quantity, or volume in urine of this metallic element that has formula Cu, and normally occurs as a cofactor for a number of proteins including amine oxidases and chaperone proteins." ;
  rdfs:subClassOf obo:VT_0003952 .

obo:VT_0002228 a rdfs:Class ;
  rdfs:label "spleen trabecular vein morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of one of the veins that feeds the splenic vein." ;
  rdfs:subClassOf obo:VT_0000689 .

obo:VT_0002280 a rdfs:Class ;
  rdfs:label "intercostal muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the respiratory muscles that arise from the lower border of one rib and insert into the upper border of the adjoining rib." ;
  rdfs:subClassOf obo:VT_0002278 , obo:VT_0003358 .

obo:VT_0010844 a rdfs:Class ;
  rdfs:label "forebrain dihydroxyphenylacetic acid (DOPAC) amount" ;
  rdfs:comment "The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010834 , obo:VT_0010872 .

obo:VT_0005004 a rdfs:Class ;
  rdfs:label "lymphocyte anergy trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of establishing a state of functional inactivation of self-reactive lymphocytes." ;
  rdfs:subClassOf obo:VT_0005000 .

obo:VT_0011361 a rdfs:Class ;
  rdfs:label "trunk circumference" ;
  rdfs:comment "The distance around the organism subdivision which is the part of the body posterior to the cervical region (or head, when cervical region not present) and anterior to the caudal region." ;
  rdfs:subClassOf obo:VT_0011360 .

obo:VT_0001879 a rdfs:Class ;
  rdfs:label "lymphatic vessel morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the the lymphatic vessels, vessels that contain or convey lymph, that originate as an interfibrillar or intercellular cleft or space in a tissue or organ." ;
  rdfs:subClassOf obo:VT_0000685 , obo:VT_0010071 .

obo:VT_0000762 a rdfs:Class ;
  rdfs:label "tongue morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mobile mass of muscular tissue and surrounding epithelial tissue occupying the cavity of the mouth and forming part of the floor." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0000681 a rdfs:Class ;
  rdfs:label "thyroid gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:VT_0002163 .

obo:VT_0010135 a rdfs:Class ;
  rdfs:label "gizzard muscle thickness" ;
  rdfs:comment "The distance between the surfaces of the layer of muscular tissue surrounding the secondary, muscular stomach in some vertebrates used for grinding up food." ;
  rdfs:subClassOf obo:VT_1000667 .

obo:VT_0005444 a rdfs:Class ;
  rdfs:label "retinol metabolism trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the chemical reactions and pathways involving retinol, one of the three compounds that makes up vitamin A; retinol plays an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response." ;
  rdfs:subClassOf obo:VT_0015087 .

obo:VT_0011103 a rdfs:Class ;
  rdfs:label "vibrissa follicle molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the tubular invaginations of the epidermis enclosing the hair roots and from which grow the vibrissae located on the muzzle and face of many species." ;
  rdfs:subClassOf obo:VT_0011102 .

obo:VT_0010715 a rdfs:Class ;
  rdfs:label "fear-related behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions in tests for fear-related behaviors (emotional response related to anticipation of specific pain or danger)." ;
  rdfs:subClassOf obo:VT_1000241 .

obo:VT_0100018 a rdfs:Class ;
  rdfs:label "integumentary system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation or differentiation of the system consisting of the skin and its derivatives." ;
  rdfs:subClassOf obo:VT_0015067 , obo:VT_1000775 .

obo:VT_0010456 a rdfs:Class ;
  rdfs:label "cerebrospinal fluid mineral amount" ;
  rdfs:comment "The proportion, quantity, or volume in cerebrospinal fluid (largely secreted by the choroid plexuses of the ventricles of the brain, filling the ventricles and the subarachnoid cavities of the brain and spinal cord) of any inorganic element or compound that has importance in body functions." ;
  rdfs:subClassOf obo:VT_0000192 , obo:VT_0010443 .

obo:VT_1000189 a rdfs:Class ;
  rdfs:label "offspring quantity" ;
  rdfs:comment "The proportion or number of offspring born in single or multiple births." ;
  rdfs:subClassOf obo:VT_0002161 .

obo:VT_0002998 a rdfs:Class ;
  rdfs:label "bone remodeling trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of the turnover of bone matrix that involves a balance of resorption and formation by osteoclasts and osteoblasts, respectively." ;
  rdfs:subClassOf obo:VT_0000070 .

obo:VT_0008680 a rdfs:Class ;
  rdfs:label "interleukin-17 secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a proinflammatory cytokine produced primarily by T-cells or their precursors." ;
  rdfs:subClassOf obo:VT_0008568 .

obo:VT_0001042 a rdfs:Class ;
  rdfs:label "obsolete sublingual salivary gland cholinergic innervation pattern trait" ;
  rdfs:comment """OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to the exocrine gland on the floor of the mouth that secretes saliva.
consider: VT:0010121, VT:0010126""" .

obo:VT_0000802 a rdfs:Class ;
  rdfs:label "superior temporal gyrus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the longitudinal ridge on the lateral surface of the temporal lobe." ;
  rdfs:subClassOf obo:VT_0000801 .

obo:VT_0011248 a rdfs:Class ;
  rdfs:label "gastrocnemius ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the two-headed large muscle of the posterior portion of the lower hindlimb, the most superficial of the calf muscles. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0010895 , obo:VT_0011059 .

obo:VT_0004452 a rdfs:Class ;
  rdfs:label "pterygoid process morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the process projecting downward from either side of the sphenoid bone, in vertebrates divided into two plates, an inner and an outer (sometimes called the lateral and medial); the posterior nares pass through the space, called the pterygoid fossa, between the processes." ;
  rdfs:subClassOf obo:VT_0000104 .

obo:VT_0015106 a rdfs:Class ;
  rdfs:label "neocortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the larger part of the mammalian cerebral cortex, distinguished from the allocortex by being composed of a larger number of nerve cells arranged in six layers." ;
  rdfs:subClassOf obo:VT_0000788 .

obo:VT_0010152 a rdfs:Class ;
  rdfs:label "obsolete chemotactic interleukin physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of any of a subset of interleukins that are involved in attracting leukocytes to a site of tissue injury." .

obo:VT_0008096 a rdfs:Class ;
  rdfs:label "plasma cell quantity" ;
  rdfs:comment "The proportion or number of terminally differentiated, post-mitotic, short-lived cells of the B cell lineage devoted to producing large amounts of immunoglobulin." ;
  rdfs:subClassOf obo:VT_0002439 , obo:VT_0008211 .

obo:VT_0002274 a rdfs:Class ;
  rdfs:label "type I pneumocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the epithelial cells lining the alveoli through which gas exchange occurs; these are thin cells with a large surface area." ;
  rdfs:subClassOf obo:VT_0002273 .

obo:VT_0010016 a rdfs:Class ;
  rdfs:label "adipocyte quantity" ;
  rdfs:comment "The proportion or number of fat-storing cells." ;
  rdfs:subClassOf obo:VT_0004128 .

obo:VT_0002138 a rdfs:Class ;
  rdfs:label "hepatobiliary system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of any of the tissues of the liver, gall bladder, or bile ducts." ;
  rdfs:subClassOf obo:VT_1000776 .

obo:VT_0015060 a rdfs:Class ;
  rdfs:label "rump trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the hindquarters." ;
  rdfs:subClassOf obo:VT_0100003 .

obo:VT_0010491 a rdfs:Class ;
  rdfs:label "heart left ventricle anterior wall thickness" ;
  rdfs:comment "The distance between the surfaces of the wall closest to the front of the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0007075 .

obo:VT_0010021 a rdfs:Class ;
  rdfs:label "muscle molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the tissue composed of contractile cells or fibers that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0002108 .

obo:VT_0004829 a rdfs:Class ;
  rdfs:label "blood anti-chromatin antibody amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of antibodies that recognize chromatin." ;
  rdfs:subClassOf obo:VT_0004794 .

obo:VT_0002422 a rdfs:Class ;
  rdfs:label "basophil morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the granular leukocytes that are characterized by pale-staining, lobate nucleus and cytoplasm and contain dark-staining granules of varying size and are stained by basic dyes." ;
  rdfs:subClassOf obo:VT_0002441 .

obo:VT_0000970 a rdfs:Class ;
  rdfs:label "polymodal receptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of a sensory receptor that may be stimulated by mechanical, thermal or chemical means." ;
  rdfs:subClassOf obo:VT_0000965 .

obo:VT_0001346 a rdfs:Class ;
  rdfs:label "lacrimal gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the glands that secrete tears." ;
  rdfs:subClassOf obo:VT_0002092 , obo:VT_0002163 .

obo:VT_0000985 a rdfs:Class ;
  rdfs:label "Merkel's receptor morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the modified epidermal cells located in the stratum basale and found mostly in areas where sensory perception is acute." ;
  rdfs:subClassOf obo:VT_0000973 .

obo:VT_0003794 a rdfs:Class ;
  rdfs:label "somite formation initiation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the start of the induction and/or formation of any of the paired, metamerically arranged cell masses formed in the embryonic paraxial mesoderm." ;
  rdfs:subClassOf obo:VT_0001688 .

obo:VT_0001013 a rdfs:Class ;
  rdfs:label "superior cervical ganglion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the group of neurons that is the largest of the ganglia of the sympathetic trunk; normally lies at the base of the skull and innervates the head and neck." ;
  rdfs:subClassOf obo:VT_0001011 .

obo:VT_0010484 a rdfs:Class ;
  rdfs:label "serotonin amount" ;
  rdfs:comment "The proportion, quantity, or volume of this monoamine neurotransmitter derived primarily from tryptophan; found primarily in the CNS, gastrointestinal tract, and platelets." ;
  rdfs:subClassOf obo:VT_0003632 , obo:VT_0015077 .

obo:VT_0010710 a rdfs:Class ;
  rdfs:label "milk copper amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this metallic bioelement found in a number of proteins." ;
  rdfs:subClassOf obo:VT_0003952 , obo:VT_0010288 .

obo:VT_0001335 a rdfs:Class ;
  rdfs:label "inner hair cell synaptic ribbon morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the presynaptic active zone of mature cochlear IHCs which usually contain a single synaptic ribbon, i.e. a submicrometer, electron-dense structure tethering synaptic vesicles; each spiral ganglion neuron receives input from only one IHC synapse." ;
  rdfs:subClassOf obo:VT_0004393 .

obo:VT_0008020 a rdfs:Class ;
  rdfs:label "dermis mast cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of cells in the dermis (the layer of the skin deep to the epidermis, consisting of a dense bed of vascular, connective tissue) containing numerous basophilic granules and capable of releasing large amounts of histamine and heparin upon activation." ;
  rdfs:subClassOf obo:VT_0000359 , obo:VT_0001243 .

obo:VT_0006107 a rdfs:Class ;
  rdfs:label "atrioventricular canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the common canal connecting the primordial atrium and ventricle." ;
  rdfs:subClassOf obo:VT_0000267 .

obo:VT_0010576 a rdfs:Class ;
  rdfs:label "urine epinephrine amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of this catecholamine hormone that stimulates the adrenergic receptors and that causes systemic vasoconstriction and gastrointestinal relaxation, stimulates the heart, and dilates bronchi and cerebral vessels." ;
  rdfs:subClassOf obo:VT_0010502 .

obo:VT_0000180 a rdfs:Class ;
  rdfs:label "blood cholesterol amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of the most abundant steroid in animal tissues, and precursor to steroid hormones and bile salts; also component of plasma membranes." ;
  rdfs:subClassOf obo:VT_0003947 , obo:VT_0010582 .

obo:VT_0010094 a rdfs:Class ;
  rdfs:label "osteoblast morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bone-forming cell that is derived from mesenchymal osteoprogenitor cells and forms an osseous matrix in which it becomes enclosed as an osteocyte." ;
  rdfs:subClassOf obo:VT_0010003 .

obo:VT_0011130 a rdfs:Class ;
  rdfs:label "medial collateral ligament ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the medial collateral ligament, a major stabilizing ligament in the knee that attaches to the surfaces of the femur and tibia. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011052 .

obo:VT_0008558 a rdfs:Class ;
  rdfs:label "interferon-beta secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of one of the type I interferons produced by fibroblasts in response to stimulation by live or inactivated virus or by double-stranded RNA with antiviral, antiproliferative, and immunomodulating activity." ;
  rdfs:subClassOf obo:VT_0008555 .

obo:VT_0003412 a rdfs:Class ;
  rdfs:label "afterhyperpolarization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the currents that follow an action potential and influence firing frequency and neuronal integration." ;
  rdfs:subClassOf obo:VT_0002272 .

obo:VT_0010445 a rdfs:Class ;
  rdfs:label "social interaction trait" ;
  rdfs:comment "Any measurable or observable characteristic of actions or reactions that typically occur in organisms that are part of a group." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0005327 a rdfs:Class ;
  rdfs:label "mesangial cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the phagocytic cells in the capillary tuft of the renal glomerulus, interposed between endothelial cells and the basement membrane in the central or stalk region of the tuft." ;
  rdfs:subClassOf obo:VT_0005325 .

obo:VT_0000040 a rdfs:Class ;
  rdfs:label "aortic valve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the valve between the left ventricle and the ascending aorta." ;
  rdfs:subClassOf obo:VT_0002746 .

obo:VT_0002227 a rdfs:Class ;
  rdfs:label "spleen capsule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the connective tissue that surrounds the spleen." ;
  rdfs:subClassOf obo:VT_0000689 .

obo:VT_0003246 a rdfs:Class ;
  rdfs:label "GABA neuron quantity" ;
  rdfs:comment "The proportion or number of neurons that utilize gamma-aminobutyric acid as a neurotransmitter." ;
  rdfs:subClassOf obo:VT_0003245 , obo:VT_0015026 .

obo:VT_3000002 a rdfs:Class ;
  rdfs:label "platelet aggregation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the process of platelets sticking to each other." ;
  rdfs:subClassOf obo:VT_0000260 .

obo:VT_0008119 a rdfs:Class ;
  rdfs:label "Langerhans cell quantity" ;
  rdfs:comment "The proportion or number of stellate dendritic cells of myeloid origin, that appear clear on light microscopy and have a dark-staining, indented nucleus and characteristic inclusions (Birbeck granules) in the cytoplasm; Langerhans cells are found principally in the stratum spinosum of the epidermis, but they also occur in other stratified epithelia and have been identified in the lung, lymph nodes, spleen, and thymus." ;
  rdfs:subClassOf obo:VT_0008117 .

obo:VT_0002115 a rdfs:Class ;
  rdfs:label "skeleton extremities morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bony framework of the limb, autopod, tail, or fin." ;
  rdfs:subClassOf obo:VT_0010091 , obo:VT_0015071 .

obo:VT_0002622 a rdfs:Class ;
  rdfs:label "cochlear hair cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the sensory epithelial cells of the cochlea; these cells are in synaptic contact with the auditory nerve." ;
  rdfs:subClassOf obo:VT_0000042 , obo:VT_0000045 , obo:VT_0003308 , obo:VT_0015093 .

obo:VT_0000427 a rdfs:Class ;
  rdfs:label "hair cycle trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the cyclical phases of growth (anagen), regression (catagen), and quiescence (telogen) in the life of a hair." ;
  rdfs:subClassOf obo:VT_4000007 .

obo:VT_0002133 a rdfs:Class ;
  rdfs:label "respiratory system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the system responsible for the exchange of oxygen and carbon dioxide with the environment." ;
  rdfs:subClassOf obo:VT_0005388 .

obo:VT_0010297 a rdfs:Class ;
  rdfs:label "sympathetic nerve fiber organization trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the systematic organization of nerve fibers to sympathetic termini." ;
  rdfs:subClassOf obo:VT_0010142 .

obo:VT_0000798 a rdfs:Class ;
  rdfs:label "frontal lobe morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the anterior part of the cerebral hemisphere." ;
  rdfs:subClassOf obo:VT_0015105 .

obo:VT_0010835 a rdfs:Class ;
  rdfs:label "tissue homovanillic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in a tissue of HVA, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0015077 .

obo:VT_0000828 a rdfs:Class ;
  rdfs:label "fourth ventricle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the 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:VT_0000822 , obo:VT_0000841 .

obo:VT_0000740 a rdfs:Class ;
  rdfs:label "smooth muscle contractility trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the unstriated, involuntary muscle tissue of the internal organs, blood vessels, hair follicles, etc. to shorten or to develop increased tension." ;
  rdfs:subClassOf obo:VT_0010111 .

obo:VT_0002206 a rdfs:Class ;
  rdfs:label "CNS synaptic transmission trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the communication from a neuron to a target across a synapse in the central nervous system." ;
  rdfs:subClassOf obo:VT_0003635 .

obo:VT_0011016 a rdfs:Class ;
  rdfs:label "CD3-positive T cell quantity" ;
  rdfs:comment "The proportion or number of T lymphocytes that are positive for the CD3 T-cell co-receptor complex." ;
  rdfs:subClassOf obo:VT_0006387 .

obo:VT_0008351 a rdfs:Class ;
  rdfs:label "gamma-delta intraepithelial T cell quantity" ;
  rdfs:comment "The proportion or number of gamma-delta T cells present in columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0008345 , obo:VT_0008349 , obo:VT_0008895 .

obo:VT_1000641 a rdfs:Class ;
  rdfs:label "ovary mass" ;
  rdfs:comment "The amount of matter in the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0001127 .

obo:VT_0010943 a rdfs:Class ;
  rdfs:label "glucokinase activity" ;
  rdfs:comment "The degree of function or response of the enzyme that catalyzes the phosphorylation of glucose to glucose-6-phosphate." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0002252 a rdfs:Class ;
  rdfs:label "oropharynx morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the portion of the pharynx that lies between the soft palate and the upper edge of the epiglottis." ;
  rdfs:subClassOf obo:VT_0002234 .

obo:VT_0010769 a rdfs:Class ;
  rdfs:label "paraoxonase 1 activity" ;
  rdfs:comment "The degree of function or response of the arylesterase that hydrolyzes paroxon, an organophosphorus anticholinesterase compound, to produce p-nitrophenol." ;
  rdfs:subClassOf obo:VT_0005584 .

obo:VT_0003732 a rdfs:Class ;
  rdfs:label "retinal outer plexiform layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the retinal layer that is the site of synapses between the rods and cones (axons) and the horizontal and bipolar cells (dendrites)." ;
  rdfs:subClassOf obo:VT_0006069 .

obo:VT_0003686 a rdfs:Class ;
  rdfs:label "eye muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the muscles of the organ of vision." ;
  rdfs:subClassOf obo:VT_0002092 , obo:VT_0002108 .

obo:VT_0011066 a rdfs:Class ;
  rdfs:label "trigeminal ganglion ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the group of sensory neuron cell bodies associated with the trigeminal nerve (fifth cranial nerve). Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011065 .

obo:VT_0000660 a rdfs:Class ;
  rdfs:label "lateral prostate size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lateral lobe of the prostate." ;
  rdfs:subClassOf obo:VT_0000659 .

obo:VT_0100000 a rdfs:Class ;
  rdfs:label "humerus size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the bone of the forelimb that articulates with the scapula above and the radius and ulna below." ;
  rdfs:subClassOf obo:VT_0005296 .

obo:VT_0004430 a rdfs:Class ;
  rdfs:label "Claudius cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the columnar cells located on the floor of the ductus cochlearis external to the spiral organ." ;
  rdfs:subClassOf obo:VT_0003169 .

obo:VT_1000435 a rdfs:Class ;
  rdfs:label "muscle conductivity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of the contractile tissue that effects movement of an organ or part of the body to conduct electrical current." ;
  rdfs:subClassOf obo:VT_0004145 .

obo:VT_0003289 a rdfs:Class ;
  rdfs:label "intestinal peristalsis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the intestinal movement characterized by waves of alternate circular contraction and relaxation of the muscular walls of the bowel that move bowel contents forward." ;
  rdfs:subClassOf obo:VT_0001664 .

obo:VT_0001006 a rdfs:Class ;
  rdfs:label "retinal cone cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the retinal receptors that give rise to color vision." ;
  rdfs:subClassOf obo:VT_0001004 .

obo:VT_0005187 a rdfs:Class ;
  rdfs:label "penis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the organ of copulation and urination in the male." ;
  rdfs:subClassOf obo:VT_0000516 , obo:VT_0001145 .

obo:VT_0003449 a rdfs:Class ;
  rdfs:label "intestinal goblet cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the unicellular mucin-secreting glands of the intestine." ;
  rdfs:subClassOf obo:VT_0000511 .

obo:VT_0010544 a rdfs:Class ;
  rdfs:label "kidney glomerulus quantity" ;
  rdfs:comment "The proportion or number of the capillary loops at the beginning of each nephric tubule in the kidney(s)." ;
  rdfs:subClassOf obo:VT_0005325 .

obo:VT_0010846 a rdfs:Class ;
  rdfs:label "medulla oblongata homovanillic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the medulla oblongata (the region of the brainstem that lies directly above the spinal cord and controls vital autonomic functions) of HVA, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010835 , obo:VT_0010873 , obo:VT_0011252 .

obo:VT_0004098 a rdfs:Class ;
  rdfs:label "cerebellar granule cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the small neurons of the granule cell layer that send parallel fibers to the upper molecular layer, where they synapse with Purkinje cell dendrites." ;
  rdfs:subClassOf obo:VT_0000886 .

obo:VT_0010938 a rdfs:Class ;
  rdfs:label "fetus integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the unborn young of a viviparous mammal after it has taken form in the uterus." ;
  rdfs:subClassOf obo:VT_0010937 .

obo:VT_0004099 a rdfs:Class ;
  rdfs:label "cerebellar glomerulus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the intertwined cluster of nerve fibers surrounded by glia where mossy fibers from the pontine nuclei in the white matter synapse with granule cell axons, Golgi cell axons and unipolar brush interneuron axons." ;
  rdfs:subClassOf obo:VT_0000886 .

obo:VT_0003372 a rdfs:Class ;
  rdfs:label "blood mineralcorticoid amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of corticosteroids that influence water and electrolyte metabolism and balance." ;
  rdfs:subClassOf obo:VT_0005418 .

obo:VT_0007002 a rdfs:Class ;
  rdfs:label "atrioventricular cushion size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical dimensions magnitude of the mounds of embryonic connective tissue that bulge into the embryonic atrioventricular canal; these mounds fuse to form the valves between the right and left atrioventricular orifices." ;
  rdfs:subClassOf obo:VT_0007001 .

obo:VT_0010557 a rdfs:Class ;
  rdfs:label "brain electrophysiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the functions of or processes in the brain (the center of thought and emotion; controls coordination, bodily activities, and the interpretation of information from the senses) as they relate to electrical phenomena." ;
  rdfs:subClassOf obo:VT_0002272 , obo:VT_0015058 .

obo:VT_0001243 a rdfs:Class ;
  rdfs:label "dermis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the layer of the skin deep to the epidermis, consisting of a dense bed of vascular, connective tissue." ;
  rdfs:subClassOf obo:VT_4000009 .

obo:VT_0005079 a rdfs:Class ;
  rdfs:label "cytotoxic T cell cytolysis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of cytotoxic T cells to induce pathological breakdown of target cells by the destruction of their outer membrane." ;
  rdfs:subClassOf obo:VT_0005078 .

obo:VT_0000130 a rdfs:Class ;
  rdfs:label "cancellous bone morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of bone that has a lattice-like or spongy structure." ;
  rdfs:subClassOf obo:VT_0010003 .

obo:VT_0010624 a rdfs:Class ;
  rdfs:label "blood superoxide dismutase amount" ;
  rdfs:comment "The proportion, quantity or volume in blood of the oxidoreductase that catalyzes the reaction between superoxide anions and hydrogen to yield molecular oxygen and hydrogen peroxide." ;
  rdfs:subClassOf obo:VT_0001570 .

obo:VT_0000813 a rdfs:Class ;
  rdfs:label "hippocampus layer morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the layers of the laminar structure of the hippocampus, the deep-lying structure of the cerebrum involved with memory storage and spatial navigation." ;
  rdfs:subClassOf obo:VT_0000807 .

obo:VT_0008746 a rdfs:Class ;
  rdfs:label "peripheral B cell anergy trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the processes of B cell anergy, a state of functional inactivation that occurs as part of tolerance induction, in B cells outside the bone marrow." ;
  rdfs:subClassOf obo:VT_0008744 .

obo:VT_0000011 a rdfs:Class ;
  rdfs:label "cloaca septation extent" ;
  rdfs:comment "The degree to which the separation of the single opening of the digestive, urinary, and reproductive tracts (cloaca) into multiple isolated openings during development has reached its end point." ;
  rdfs:subClassOf obo:VT_0003125 .

obo:VT_0011168 a rdfs:Class ;
  rdfs:label "sperm ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the male gamete, which is produced in the testes. Sperm cells play an important role in the process of fertilization, where they fuse with a female gamete or egg cell (ovum) to form a zygote. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0011167 .

obo:VT_0011152 a rdfs:Class ;
  rdfs:label "laryngeal muscle molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the muscles associated with the larynx." ;
  rdfs:subClassOf obo:VT_0002263 .

obo:VT_0010919 a rdfs:Class ;
  rdfs:label "feces bile acid amount" ;
  rdfs:comment "The proportion, quantity, or volume in feces of any member of a group of hydroxy-5beta-cholanic acids occurring in bile, where they are present as the sodium salts of their amides with glycine or taurine." ;
  rdfs:subClassOf obo:VT_0010917 , obo:VT_0011379 .

obo:VT_0004366 a rdfs:Class ;
  rdfs:label "strial marginal cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the polarized columnar cells of epithelial origin which cover the lateral surface of the cochlear duct, secrete K+ and form a continuous sheet in contact with the endolymph; marginal cells form extensive interdigitations with the basal and intermediate cells in the normal adult stria." ;
  rdfs:subClassOf obo:VT_0000048 .

obo:VT_0011049 a rdfs:Class ;
  rdfs:label "limb joint morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a limb joint, any joint (mostly synovial) that is part of a limb." ;
  rdfs:subClassOf obo:VT_0002109 , obo:VT_0002932 .

obo:VT_0001007 a rdfs:Class ;
  rdfs:label "sympathetic nervous system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the autonomic nervous system that innervates smooth muscle, cardiac muscle and glands and mediates the body's response to stressful situations." ;
  rdfs:subClassOf obo:VT_0002751 .

obo:VT_0010603 a rdfs:Class ;
  rdfs:label "stomach integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the sac-like structure of the digestive canal between the esophagus and the small intestine." ;
  rdfs:subClassOf obo:VT_0000470 .

obo:VT_0000416 a rdfs:Class ;
  rdfs:label "hair amount" ;
  rdfs:comment "The proportion or quantity of the hair, wool, or fur of an organism, that is, of either a single cylindrical, keratinized, often pigmented filament characteristically growing from the epidermis of a mammal, or of the aggregate of all such filaments." ;
  rdfs:subClassOf obo:VT_0000367 .

obo:VT_0003018 a rdfs:Class ;
  rdfs:label "blood chloride amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of chlorine salts." ;
  rdfs:subClassOf obo:VT_0000068 , obo:VT_0010998 .

obo:VT_0005149 a rdfs:Class ;
  rdfs:label "gubernaculum morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the genitoinguinal ligaments that, in the male, connect the fetal testis to the developing scrotum, and, in the female, connect the ovaries to the uterus." ;
  rdfs:subClassOf obo:VT_0002160 .

obo:VT_0001035 a rdfs:Class ;
  rdfs:label "submandibular ganglion morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the ganglion associated with the lingual nerve." ;
  rdfs:subClassOf obo:VT_0001034 .

obo:VT_0010497 a rdfs:Class ;
  rdfs:label "liver molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the bile-secreting exocrine gland, which is important for detoxification; for fat, carbohydrate, and protein metabolism; and for glycogen storage." ;
  rdfs:subClassOf obo:VT_0000598 .

obo:VT_0010819 a rdfs:Class ;
  rdfs:label "comb pigmentation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the deposition or aggregation of coloring matter in the vascular, red cutaneous structure attached in a sagittal plane to the dorsum of the skull of domestic fowl." ;
  rdfs:subClassOf obo:VT_0010656 .

obo:VT_0010599 a rdfs:Class ;
  rdfs:label "maternal behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the behavior of the mother or attending female associated with the ability of young to thrive." ;
  rdfs:subClassOf obo:VT_0002068 .

obo:VT_0003069 a rdfs:Class ;
  rdfs:label "superior semicircular canal morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the upper, superior segment of the long bony tube of the labyrinth that is involved in the sense of balance." ;
  rdfs:subClassOf obo:VT_0002428 .

obo:VT_0002263 a rdfs:Class ;
  rdfs:label "laryngeal muscle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the muscles associated with the larynx." ;
  rdfs:subClassOf obo:VT_0000759 , obo:VT_0002249 .

obo:VT_0004117 a rdfs:Class ;
  rdfs:label "atrioventricular bundle morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the specialized cardiac muscle fibers that originate in the atrioventricular node and extend into the ventricle." ;
  rdfs:subClassOf obo:VT_0000019 , obo:VT_0004123 .

obo:VT_0000477 a rdfs:Class ;
  rdfs:label "intestine morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the digestive tube passing from the stomach to the anus." ;
  rdfs:subClassOf obo:VT_0000462 .

obo:VT_0005089 a rdfs:Class ;
  rdfs:label "double-negative T cell quantity" ;
  rdfs:comment "The proportion or numbers of the subset of T cells found in the thymus that express neither CD4 nor CD8." ;
  rdfs:subClassOf obo:VT_0002407 , obo:VT_0006387 .

obo:VT_0100011 a rdfs:Class ;
  rdfs:label "urine enzyme amount" ;
  rdfs:comment "The proportion, quantity, or volume in the urine of proteins that act as catalysts for biological reactions." ;
  rdfs:subClassOf obo:VT_0005160 .

obo:VT_0005198 a rdfs:Class ;
  rdfs:label "aqueous drainage system morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the structures associated with drainage of the aqueous humor from the eye, these include the trabecular meshwork, Schlemm's canal, the uveoscleral network, and the aqueous veins." ;
  rdfs:subClassOf obo:VT_0005194 .

obo:VT_0000267 a rdfs:Class ;
  rdfs:label "heart development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organ that pumps blood through the body." ;
  rdfs:subClassOf obo:VT_0000121 .

obo:VT_0003769 a rdfs:Class ;
  rdfs:label "lip morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the fleshy margins of the mouth." ;
  rdfs:subClassOf obo:VT_0003744 , obo:VT_0015066 .

obo:VT_0010072 a rdfs:Class ;
  rdfs:label "lymphatic system development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the system of lymphoid channels and tissues that drains extracellular fluid from the periphery via the thoracic duct to the blood." ;
  rdfs:subClassOf obo:VT_0010251 , obo:VT_0100015 .

obo:VT_0008616 a rdfs:Class ;
  rdfs:label "blood interleukin-12 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a heterodimeric cytokine that plays a role in innate and adaptive immune responses; it is produced by dendritic cells, macrophages and a variety of other immune cells and plays a role in the stimulation of interferon-gamma production by T-cells and natural killer cells." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0000197 a rdfs:Class ;
  rdfs:label "vasodilation trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the ability of a blood vessel to increase its diameter in response to a chemical or mechanical signal." ;
  rdfs:subClassOf obo:VT_0000195 .

obo:VT_0000524 a rdfs:Class ;
  rdfs:label "kidney tubule quantity" ;
  rdfs:comment "The proportion or number of loops of Henle, proximal and distal convoluted tubules, and collecting ducts in the kidney." ;
  rdfs:subClassOf obo:VT_0002703 .

obo:VT_0010912 a rdfs:Class ;
  rdfs:label "urine homeostasis trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the internal equilibrium in the fluid and dissolved substances excreted by the kidneys." ;
  rdfs:subClassOf obo:VT_0000056 , obo:VT_0001764 .

obo:VT_0001452 a rdfs:Class ;
  rdfs:label "vestibular hair cell stereocilia quantity" ;
  rdfs:comment "The proportion or numbers of the nonmotile, actin-filled specialized microvilli (stereocilia) which are normally arrayed on vestibular hair cells in a staircase-like pattern." ;
  rdfs:subClassOf obo:VT_0001445 .

obo:VT_0008166 a rdfs:Class ;
  rdfs:label "B-2 B cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a conventional B cell subject to antigenic stimulation and dependent on T cell help and with a distinct surface marker expression pattern from B-1 B cells." ;
  rdfs:subClassOf obo:VT_0008171 .

obo:VT_0001126 a rdfs:Class ;
  rdfs:label "ovary morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the female reproductive gland containing the germ cells." ;
  rdfs:subClassOf obo:VT_0000653 , obo:VT_0001119 .

obo:VT_0003951 a rdfs:Class ;
  rdfs:label "copper homeostasis trait" ;
  rdfs:comment "Any measurable characteristic related to the state of equilibrium in the body with respect to this metallic element that normally occurs in a number of proteins including amine oxidases and chaperone proteins." ;
  rdfs:subClassOf obo:VT_0005636 .

obo:VT_0004087 a rdfs:Class ;
  rdfs:label "muscle cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the cells comprising the contractile tissue that effects movement of an organ or part of the body." ;
  rdfs:subClassOf obo:VT_0002108 .

obo:VT_0010276 a rdfs:Class ;
  rdfs:label "milk steroid amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of members of the hormone family that includes estrogens, progesterone, glucocorticoids, and androgens." ;
  rdfs:subClassOf obo:VT_0010275 .

obo:VT_0004137 a rdfs:Class ;
  rdfs:label "gastric surface mucous cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the mucus secreting epithelial cells that line the luminal surface of the stomach, gastric pits and gastric glands." ;
  rdfs:subClassOf obo:VT_0005209 .

obo:VT_0005246 a rdfs:Class ;
  rdfs:label "orbit morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the bony cavity that contains the eyeball or of any of the parts of the bones which form the cavity." ;
  rdfs:subClassOf obo:VT_0002092 , obo:VT_0010612 .

obo:VT_0000647 a rdfs:Class ;
  rdfs:label "sebaceous gland morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the holocrine glands of the dermis that secrete sebum." ;
  rdfs:subClassOf obo:VT_0002163 , obo:VT_0010007 .

obo:VT_0000981 a rdfs:Class ;
  rdfs:label "obsolete hair-down cell innervation pattern trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the arrangement, distribution or supply of nerve fibers to hair down cells." .

obo:VT_0008400 a rdfs:Class ;
  rdfs:label "CD4-positive, alpha-beta intraepithelial T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of a CD4-positive, alpha-beta T cell of the columnar epithelia such as in the gastrointestinal tract; intraepithelial T cells often have distinct developmental pathways and activation requirements." ;
  rdfs:subClassOf obo:VT_0002432 , obo:VT_0008399 .

obo:VT_0010808 a rdfs:Class ;
  rdfs:label "milk sulfur amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk of this nonmetallic element with atomic symbol S and atomic number 16." ;
  rdfs:subClassOf obo:VT_0010288 .

obo:VT_0004347 a rdfs:Class ;
  rdfs:label "scapular spine morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the triangular ridge on the dorsal aspect of the scapula, which separates the supra- from the infraspinatous fossa and where the trapezius and deltoid muscles are attached." ;
  rdfs:subClassOf obo:VT_0000149 .

obo:VT_1000281 a rdfs:Class ;
  rdfs:label "tibia area" ;
  rdfs:comment "The two-dimensional extent of the medial and larger of the two bones of the lower leg, which articulates with the femur, fibula, and talus." ;
  rdfs:subClassOf obo:VT_0100001 .

obo:VT_0008634 a rdfs:Class ;
  rdfs:label "blood interleukin-18 amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of a cytokine which enhances the cytotoxic activity of NK cells and cytotoxic T-cells and appears to play a role both as neuroimmunomodulator and in the induction of mucosal immunity." ;
  rdfs:subClassOf obo:VT_0008588 .

obo:VT_0002407 a rdfs:Class ;
  rdfs:label "double-negative T cell morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the subset of T cells found in the thymus that express neither CD4 nor CD8." ;
  rdfs:subClassOf obo:VT_0008037 .

obo:VT_0000868 a rdfs:Class ;
  rdfs:label "cerebellum anterior vermis size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the anterior portion of the narrow middle zone between the two hemispheres of the cerebellum that is located anterior to the primary fissure." ;
  rdfs:subClassOf obo:VT_0000867 .

obo:VT_0010473 a rdfs:Class ;
  rdfs:label "impulsivity behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions with regard to the ability of an individual to exert restraint over behavior." ;
  rdfs:subClassOf obo:VT_0002572 .

obo:VT_0010254 a rdfs:Class ;
  rdfs:label "hematopoietic system physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the cells found in the blood and/or the blood-forming organs and tissues." ;
  rdfs:subClassOf obo:VT_0010253 .

obo:VT_0011286 a rdfs:Class ;
  rdfs:label "heart muscle ribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of ribonucleic acid in the striated, involuntary muscle comprising the myocardium. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds." ;
  rdfs:subClassOf obo:VT_0005329 , obo:VT_0010792 .

obo:VT_0010414 a rdfs:Class ;
  rdfs:label "follicle-stimulating hormone secretion trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the controlled release of a glycoprotein that stimulates the graafian follicles of the ovary and assists in follicular maturation and the secretion of estradiol; in the male, it stimulates the epithelium of the seminiferous tubules and is partially responsible for inducing spermatogenesis." ;
  rdfs:subClassOf obo:VT_0001746 .

obo:VT_0010721 a rdfs:Class ;
  rdfs:label "response to nicotine trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the capacity of an organism to change, adjust, or alter its morphology, physiology, or behavior as a result of nicotine exposure." ;
  rdfs:subClassOf obo:VT_0010488 .

obo:VT_0010901 a rdfs:Class ;
  rdfs:label "colorectal integrity trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the structural soundness of the portion of the large intestine between the cecum and the anus." ;
  rdfs:subClassOf obo:VT_0000492 , obo:VT_0000495 .

obo:VT_0010394 a rdfs:Class ;
  rdfs:label "uterine horn morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the upper right or left portion of the uterus to which the uterine tube is connected." ;
  rdfs:subClassOf obo:VT_0001120 .

obo:VT_0010927 a rdfs:Class ;
  rdfs:label "blood complement amount" ;
  rdfs:comment "The proportion, quantity, or volume in whole blood, serum, or plasma of complement,  the thermolabile group of proteins in normal blood serum and plasma that in combination with antibodies causes the destruction especially of particulate antigens (such as bacteria and foreign blood corpuscles)." ;
  rdfs:subClassOf obo:VT_0005416 .

obo:VT_0010849 a rdfs:Class ;
  rdfs:label "forebrain homovanillic acid amount" ;
  rdfs:comment "The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of HVA, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010835 , obo:VT_0010873 .

obo:VT_0010117 a rdfs:Class ;
  rdfs:label "longissimus thoracis size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the muscle of the back which is the intermediate and largest of the continuations of the Sacrospinalis." ;
  rdfs:subClassOf obo:VT_0003398 , obo:VT_1000706 .

obo:VT_0011272 a rdfs:Class ;
  rdfs:label "epididymis molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens." ;
  rdfs:subClassOf obo:VT_0002631 .

obo:VT_0001933 a rdfs:Class ;
  rdfs:label "single birth offspring quantity" ;
  rdfs:comment "The proportion or number of offspring produced from a single pregnancy (mammals) or ovulation (fish) or nesting (birds)" ;
  rdfs:subClassOf obo:VT_1000189 .

obo:VT_0003450 a rdfs:Class ;
  rdfs:label "pancreas size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream." ;
  rdfs:subClassOf obo:VT_0001944 .

obo:VT_0015053 a rdfs:Class ;
  rdfs:label "opercular flap morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the structure that covers the gills." ;
  rdfs:subClassOf obo:VT_0015066 .

obo:VT_0010168 a rdfs:Class ;
  rdfs:label "obsolete C1 physiology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the function of the complement protein, C1." .

obo:VT_0000484 a rdfs:Class ;
  rdfs:label "pulmonary artery morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the artery that conveys unaerated blood to the lungs." ;
  rdfs:subClassOf obo:VT_0002191 .

obo:VT_0011231 a rdfs:Class ;
  rdfs:label "primary motor cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the part of the cerebral cortex that receives projections from the motor thalamus and which projects to motor neurons in the brainstem and spinal cord; the primary motor cortex, or M1, is located on the precentral gyrus and on the anterior paracentral lobule on the medial surface of the brain." ;
  rdfs:subClassOf obo:VT_0000788 , obo:VT_0000799 .

obo:VT_0000788 a rdfs:Class ;
  rdfs:label "cerebral cortex morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the grey matter on the surface of the cerebral hemisphere that develops from the telencephalon and folds into gyri; it is responsible for intellectual faculties and higher mental functions." ;
  rdfs:subClassOf obo:VT_0015105 .

obo:VT_0002572 a rdfs:Class ;
  rdfs:label "emotion/affect behavior trait" ;
  rdfs:comment "Any measurable or observable characteristic related to actions or reactions in tests for emotional-related behaviors." ;
  rdfs:subClassOf obo:VT_0010442 .

obo:VT_0010645 a rdfs:Class ;
  rdfs:label "biceps brachii muscle mass" ;
  rdfs:comment "The amount of matter in the muscle in the forelimb stylopod which in humans has several functions, the most important being to rotate the forearm and to flex the elbow." ;
  rdfs:subClassOf obo:VT_0010448 .

obo:VT_0001325 a rdfs:Class ;
  rdfs:label "retina morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the thin layer of neural tissue lining the back of the eyeball which contains visual receptors." ;
  rdfs:subClassOf obo:VT_0002864 .

obo:VT_0000028 a rdfs:Class ;
  rdfs:label "pars superior vestibularis morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the part of the vestibular ganglion that receives fibers from the maculae of the utricle and the sacculae and the ampullae of the anterior and lateral semicircular ducts." ;
  rdfs:subClassOf obo:VT_0000026 , obo:VT_0002856 .

obo:VT_0000051 a rdfs:Class ;
  rdfs:label "testis physiology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the function of or processes in the male reproductive glands where sperm production occurs." ;
  rdfs:subClassOf obo:VT_0003698 , obo:VT_0005647 .

obo:VT_0004387 a rdfs:Class ;
  rdfs:label "prechordal plate morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the horseshoe-shaped thickening of the endoderm at the cranial (rostral) end of the primitive streak formed by the involution of Spemann's organizer cells which, together with the notochord, induces the formation of the neural plate from the overlying ectodermal cells and contributes mesodermal type cells to the surrounding tissue." ;
  rdfs:subClassOf obo:VT_0002084 .

obo:VT_0009635 a rdfs:Class ;
  rdfs:label "popliteal lymph node size trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the physical magnitude of the lymph nodes which drain the legs." ;
  rdfs:subClassOf obo:VT_0000701 , obo:VT_0002352 .

obo:VT_1000059 a rdfs:Class ;
  rdfs:label "obsolete total heart ventricle morphology trait" ;
  rdfs:comment "OBSOLETE. Any measurable or observable characteristic related to the shape, structure, color or pattern of both of the lower chambers of the heart." .

obo:VT_0001056 a rdfs:Class ;
  rdfs:label "cranial nerve morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of any of the twelve nerves that emerge from the cranium as opposed to the spinal nerves." ;
  rdfs:subClassOf obo:VT_0002752 .

obo:VT_0010890 a rdfs:Class ;
  rdfs:label "intestine trypsin amount" ;
  rdfs:comment "The proportion, quantity, or volume in an intestinal tissue of the digestive enzyme trypsin." ;
  rdfs:subClassOf obo:VT_0010889 .

obo:VT_0003073 a rdfs:Class ;
  rdfs:label "metacarpus morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color, or pattern of the bones of the forelimbs that articulate proximally with the carpal bones and distally with the phalanges." ;
  rdfs:subClassOf obo:VT_0000550 , obo:VT_0010104 .

obo:VT_0010872 a rdfs:Class ;
  rdfs:label "brain dihydroxyphenylacetic acid (DOPAC) amount" ;
  rdfs:comment "The proportion, quantity or volume in the brain of the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid, a catecholamine metabolite." ;
  rdfs:subClassOf obo:VT_0010585 .

obo:VT_0003498 a rdfs:Class ;
  rdfs:label "thyroid gland cell quantity" ;
  rdfs:comment "The proportion or number of cells in the two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, that produces various hormones, such as triiodothyronine and calcitonin." ;
  rdfs:subClassOf obo:VT_0000681 .

obo:VT_0100007 a rdfs:Class ;
  rdfs:label "growth trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the increase in size of an organism." ;
  rdfs:subClassOf obo:VT_0010454 .

obo:VT_0010565 a rdfs:Class ;
  rdfs:label "heart left ventricle deoxyribonucleic acid amount" ;
  rdfs:comment "The proportion, quantity, or volume of deoxyribonucleic acid (DNA), the molecule composed of the sugar deoxyribose, phosphate groups and any combination of the bases adenine, guanine, cytosine, and/or thymine, in the left lower chamber of the heart." ;
  rdfs:subClassOf obo:VT_0010561 , obo:VT_0011005 .

obo:VT_0003934 a rdfs:Class ;
  rdfs:label "pancreas development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology during formation and differentiation of the organ that secretes pancreatic juice into the duodenum and secretes glucagon and insulin into the bloodstream." ;
  rdfs:subClassOf obo:VT_0015037 , obo:VT_1000776 .

obo:VT_0010833 a rdfs:Class ;
  rdfs:label "forebrain epinephrine amount" ;
  rdfs:comment "The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of a catecholamine secreted by the adrenal gland upon stimulation of the sympathetic nervous system." ;
  rdfs:subClassOf obo:VT_0010828 , obo:VT_0010871 .

obo:VT_0010338 a rdfs:Class ;
  rdfs:label "milk fatty acid cis-12-C18:1 amount" ;
  rdfs:comment "The proportion, quantity, or volume in milk fat of an unsaturated fatty acid with an eighteen-carbon backbone and a cis double bond at C-12." ;
  rdfs:subClassOf obo:VT_0010373 .

obo:VT_0001340 a rdfs:Class ;
  rdfs:label "eyelid morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the skin folds covering the front of the eyeball." ;
  rdfs:subClassOf obo:VT_0002092 .

obo:VT_0001292 a rdfs:Class ;
  rdfs:label "lens vesicle development trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the morphology or physiology of the primordium of the lens of the eye during its formation and differentiation." ;
  rdfs:subClassOf obo:VT_0005545 .

obo:VT_0003236 a rdfs:Class ;
  rdfs:label "lens capsule morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the elastic, clear, membrane-like structure, that is the outermost layer of the transparent structure of the eye responsible for focusing light rays." ;
  rdfs:subClassOf obo:VT_0001303 .

obo:VT_0000231 a rdfs:Class ;
  rdfs:label "heart excitatory physiology trait" ;
  rdfs:comment "Any measurable characteristic related to the function of or processes involved in generation and conduction of electrical impulses in the heart." ;
  rdfs:subClassOf obo:VT_0010301 .

obo:VT_0002825 a rdfs:Class ;
  rdfs:label "notochord morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the axial fibrocellular cord in embryos around which develops the vertebral primordia." ;
  rdfs:subClassOf obo:VT_0002085 .

obo:VT_0005299 a rdfs:Class ;
  rdfs:label "eye posterior chamber morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the ring-like space, filled with aqueous humor, between the iris/pupil anteriorly and the lens and ciliary body posteriorly." ;
  rdfs:subClassOf obo:VT_0005193 .

obo:VT_0002886 a rdfs:Class ;
  rdfs:label "glutamate receptor current trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the measured amplitude or duration of response to stimulation of glutamanergic receptors." ;
  rdfs:subClassOf obo:VT_0002206 .

obo:VT_0011051 a rdfs:Class ;
  rdfs:label "knee joint molecular composition trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the joint that joins the thigh with the leg and consists of two articulations: one between the femur and tibia, and one between the femur and patella." ;
  rdfs:subClassOf obo:VT_0011050 .

obo:VT_0004294 a rdfs:Class ;
  rdfs:label "type II spiral ligament fibrocyte morphology trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the shape, structure, color or pattern of the type II spiral ligament fibrocytes found in the suprastrial zone and the central area of the spiral ligament beneath the spiral prominence." ;
  rdfs:subClassOf obo:VT_0004292 .

obo:VT_2000008 a rdfs:Class ;
  rdfs:label "lymph flow trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the movement of lymph through the lymph vessels." ;
  rdfs:subClassOf obo:VT_0000174 .

obo:VT_0011356 a rdfs:Class ;
  rdfs:label "coat/hair distribution trait" ;
  rdfs:comment "Any measurable or observable characteristic related to the placement of the hair, wool, or fur of an organism, that is, of either a single cylindrical, keratinized, often pigmented filament characteristically growing from the epidermis of a mammal, or of the aggregate of all such filaments, on the body." ;
  rdfs:subClassOf obo:VT_0000367 .

obo:VT_0010243 a rdfs:Class ;
  rdfs:label "reticulo-rumen epithelium thickness" ;
  rdfs:comment "The distance between the surfaces of the layer of membranous tissue that lines the internal surface of the reticulo-rumen." ;
  rdfs:subClassOf obo:VT_0010240 .

obo:IAO_0000115 a rdf:Property ;
  rdfs:label "definition" ;
  rdfs:range xsd:string .

<http://purl.obolibrary.org/obo/vt#is_a> a rdf:Property ;
  rdfs:label "is a" ;
  rdfs:range <https://w3id.org/linkml/Any> .

<http://purl.obolibrary.org/obo/vt#part_of> a rdf:Property ;
  rdfs:label "part_of" ;
  rdfs:range <https://w3id.org/linkml/Any> .
