Property:Comment
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The definition of cell is intended to represent all cells, and thus a cell is defined as a material entity and not an anatomical structure, which implies that it is part of an organism (or the entirety of one). +
To accommodate unicellular organisms better, 'cell in vivo' has been re-labeled 'native cell' to better represent its intended meaning - that is, that it is a cell in the context of a multicellular organism or in a natural environment. 'Native' is intended to contrast with 'in vitro', which refers to cells or other biological entities that have been intentionally placed in a controlled, non-natural setting for the purpose of study or manipulation. (MAH 1.12.12). +
TODO - distinguish generic olfactory apparatus from nose; we have olfactory organ for the generic organ - add new class 'olfactory structure'? +
A primitive exocrine pancreas can be found in holocephalan cartilaginous fish; a pancreatic duct directly ending in the gut lumen is connected to a glandular structure made of exocrine cells and associated with cell islets, which comprises three different hormone-producing cell types: insulin, somatostatin and glucagon (Yui and Fujita, 1986)[PMID:16417468] +
Taxon notes: The lamprey possesses a distinct pituitary organ and hormones, the ascidian does not show distinct evidence of them [Sower S, Freamat M, Kavanaugh S. The origins of the vertebrate hypothalamic遯ｶ闖殃tuitary遯ｶ蝣ｵonadal (HPG) and hypothalamic遯ｶ闖殃tuitary遯ｶ骰紘yroid (HPT) endocrine systems: new insights from lampreys. Gen Comp Endocrinol 2009;161:20-9] +
The class has been re-labeled to 'culture' instead of 'line', as this class intends to cover cultured cells of multicellular and unicellular organisms, and both immortal and mortal cultured cells. 'Cell line' has different meanings to different people, in some cases referring to a culture that has been passaged, and in others referring to cultures that are immortal. 'Cell line cell' is included, however, as a narrow synonym. +
Development notes: has developmental contribution from NC in verteberates (UBERONREF:0000002) +
Development notes: has developmental contribution from NC in verteberates (UBERONREF:0000002) +
we assume that mouse, HOG and GAID all mean zone of skin when they say skin. We also choose skin as an exact synonym, as it is more intuitive +
Editor notes - endocrine and exocrine pancrease are no co-associated in hagfishes or lampreys [PMID:20959416] - create a separate class for these? +
AO notes: FMA distinguishes Eye (subdivision of face) which has its parts an Eyeball (organ). MA includes eyelid, conjunctiva and lacrimal apparatus as part of MA:eye - consistent with FMA - so we can infer that MA:eye is more like FMA:eye than FMA:eyeball. For other AOs this distinction is less meaningful - e.g. ZFA has no eyelid; XAO has no eyelid, but it has conjuctiva, which is considered part of the xao:eye. GO considers eyelid development part of eye development. See also notes on optic nerve - XAO, AAO and BTO consider this part of the eye. MA considers the eye muscles part of the eye, whereas FMA has a class 'orbital content' for this +
GO includes tree trunks, but excludes antennae. We modify trunk to body in our definition. Note this is currently a subtype of organism subdivision - which would exclude feathers +
Morphology: mononuclear cell, diameter 12-20 _M, non-granular, N/C ratio 3/1 - 4/1; markers: CD11b (shared with many other myeloid cells); location: Adult: bone marrow; fetal: liver, Yolk Sac; role or process: hematopoiesis, monocyte development; lineage: hematopoietic, myeloid. +
AO notes: in FMA, tendon is an organ component that with parts dense-irregular-connective-tissue of tendon and dense-irregular-connective-tissue of tendon sheath; we follow VSAO in making it a subtype of the former. In VSAO tendons connect muscle to bone; in WP the def states integument (e.g. auricular muscles) - but JB confirms this is not actually tendon but aponeurosis +
TODO - check vert vs invert. Other species: Any of a number of aggregations of neurons, glial cells and their processes, surrounded by a glial cell and connective tissue sheath (plural: ganglia). // Subdivision of neural tree (organ) which primarily consists of cell bodies of neurons located outside the neuraxis (brain and spinal cord); together with a nucleus and its associated nerve, it constitutes a neural tree (organ). Examples: spinal ganglion, trigeminal ganglion, superior cervical ganglion, celiac ganglion, inferior hypogastric (pelvic) ganglion. // a cluster of nerve cells and associated glial cells (nuclear location) // Portion of tissue that contains cell bodies of neurons and is located outside the central nervous system. // Structures containing a collection of nerve cell bodies. (Source: BioGlossary, www.Biology-Text.com). +
CLP are CD7-positive, CD10-positive, CD19-negative, CD34-positive, CD45RA-positive, CD79a-negative, CD127-positive, AA4.1-positive, RAG-negative, Sca-1-low, sIgM-negative, sIgD-negative, TdT-negative, Vpre-B-negative, and pre-BCR-negative. Expression of transcription factors include E2A-positive, EBF-positive, Ikaros-negative, PU.1-negative, and Pax5-negative. +
These cells may be vimentin-positive, fibronectin-positive, fsp1-positive, MMP-1-positive, collagen I-positive, collagen III-positive, and alpha-SMA-negative. +
TODO - make distinctions between duct and tube clearer. Single layer of cells vs multiples? Function (e.g. exocrine gland duct?). Different ontologies use it in different ways +
Note that MA:0000434 has subclasses upper and lower, so it corresponds to a segment of the tract, rather than the tract as a whole +
ZFA - The multi-tissue structure where the glomerular basement membrane supported by mesonephric podocytes filters blood from the glomerular capillaries. TODO - split glomerulus and glomerular tuft? DONE. GUDMAP: 'Together, the Bowman遯ｶ蜀ｱ capsule and the glomerulus comprise the definitive renal corpuscle.' - here the glomerulus is part of the capsule? +
Editor note: merge with non-neural. In vertebrates, the ectoderm has three parts: external ectoderm (also known as surface ectoderm), the neurectoderm (neural crest, and neural tube). +
Grouping term for query purposes. Notes that the developmental relationships are being refined such that most structures should develop in whole from at most one layer, but may have contributions from multiple +
Grouping term for query purposes. Notes that the developmental relationships are being refined such that most structures should develop in whole from at most one layer, but may have contributions from multiple +
By contrast to the pronephros, the histological features of the mesonephros, with its primitive glomeruli, suggest that it probably functions as a primitive kidney, and is involved in the production of much of the amniotic fluid. Within the two mesonephroi, one located on either side of the dorsal mesentery of the hindgut, a substantial number (in the region of about 40 or more) of cranio-caudally segmented mesonephric tubules are formed. It has, however, been suggested that only the most rostrally located 4-6 pairs of mesonephric tubules drain into the mesonephric portion of the nephric duct. This is now seen to extend along the length of the mesonephroi, being located towards their lateral sides. The mesonephros is also retained over a considerably longer period than the pronephros, but gradually undergoes regression in a cranio-caudal direction. While the rostral part displays clear evidence of regression its more caudal part appears to display evidence of functional activity. Within the medial part of the mesonephros, vesicles are formed, although no glomeruli are formed there in this species. It is, however, difficult to believe that the relatively enormous mesonephroi do not have an excretory role in the mouse, only serving as a base for gonadal differentiation. In the human embryo, the medial part of the mesonephric tubules enlarges, become invaginated by capillaries, and form glomeruli. These then take on an excretory role. In the mouse, the mesonephric ducts appear to be patent throughout their length[GUDMAP] comment: Taxon notes: The mesonephros persists and form the permanent kidneys in fishes and amphibians, but in reptiles, birds, and mammals, it atrophies and for the most part disappears rapidly as the permanent kidney (metanephros) begins to develop during the sixth or seventh week. By the beginning of the fifth month only the ducts and a few of the tubules of the mesonephros remain[WP] +
Development notes: The postimplantation derivatives of the trophectoderm, which make up most of the fetal part of the placenta[PMID:19829370] +
Morphology: Highly vesicular; markers: Surface: RANK, cFMS (MCSF receptor); Secreted: cathepsin K and TRAP (tartate resistant acid phosphatase); transcription factors: PU.1, cFOS, MITF, NFkB (p52); role or process: tissue remodelling: bone resorption; lineage: hematopoietic, myeloid. +
Mast cells are generally integrin beta-7-negative and positive for TLR2, TLR3, TLR4, TLR5, TLR7, TLR9, C3aR, C5aR, CR3, CR4, VEGF, FGF2, and renin. They can express MHC Class I and II on their surface. Activated murine mast cells (IgE+Antigen) were capable of expressing the following co-stimulatory molecules: CD95 (Fas), CD120b, CD137 (4-1BB), CD153 (CD30L), CD154 (CD40L), GITR, ICOSL, OX40L, PD-L1, and PD-L2. Note that there was some mouse strain variation. Mast cells have also been demonstrated to produce bFGF, CCL2, CCL4, CCL5, CCL11, CCL20, CXCL2, CXCL8, CXCL10, GM-CSF, IFN-gamma, IL-1, IL-2, IL-3, IL-8, IL-10, IL-11, IL-12, IL-13, IL-16, IL-25, IL-18, MIP-1, prostaglandin D2, SCF, TGF-beta, TNF-alpha, TSLP, VEGF, and XCL1. They express the transcription factors Transcription factors AP-1, GATA1, MITF, Notch2, PIAS3, PU.1, and STAT5. +
The term "neuroepithelial cell" is used to describe both this cell type and neurecto-epithelial cell (CL:0000710). +
From FMA: 9.07.2001: Endothelial cell has always been classified as a kind of epithelial cell, specifically a squamous cell but that is not true. First, endothelial cell can either be squamous or cuboidal (e.g. high-endothelial cell) and secondly, it has different embryological derivation (mesodermal) than a true epithelial cell (ectodermal and endodermal). The basis for present classification is the fact that it comprises the outermost layer or lining of anatomical structures (location-based) but a better structural basis for the differentia is the cytoskeleton of the cell. Endothelial cell has vimentin filaments while an epithelial cell has keratin filaments. [Onard]. +
do not include NIF_Subcellular:sao1702920020 Nucleus. Proposed CUMBO def from MM: A subcortical part of the nervous system consisting of a relatively compact group of cells that is distinguishable histologically that share a commonality of cytoarchitecture, chemoarchitecturel and connectivity. (comments: I put in "subcortical" because I don't think we consider either the cerebellar cortex or cerebral cortex to be nuclei. Some people distinguish between a nucleus and a laminar structure (see Wikipedia definition). However, there are structures identified as nuclei that are laminar, e.g., lateral geniculate nucleus, although they are not laminated in all species. Also, I put in "relatively compact" and "distiguishable by histology" because we have groups of cells, e.g., cholinergic cell groups, doparminergic cell groups that are related on the 3 criteria but which we don't tend to consider nuclei because they don't occupy an easily defined territory. But all is open to debate. +
Astrocytes are reportedly CD68-negative, CD121a-positive, CD184-positive, CD192-positive, CRF-positive, EGFR-positive, GFAP-positive, GLUT1-positive, MBP-negative, and NGFR-positive. +
Markers: Mouse: CD11b+, F4/80+, CD68+. They represent ~12% of the cells in the CNS, but they are not uniformly distributed within the CNS. A normal adult mouse brain has approximately 3.5x10e6 microglia. Microglia are also reportedly CD3-negative, CD4-positive, CD8-negative, CD11b-positive, CD19-negative, CD56-negative, CD163-negative, CD200R-positive, CD281-positive, CD282-positive, CD283-positive, CD284-positive, CD285-positive, CD286-positive, CD287-positive, CD288-positive, CD289-positive, Gr1-negative, nestin-positive, and PU.1-positive. +
Many but not all mesenchymal cells derive from the mesoderm. MSCs are reportedly CD3-negative, CD4-negative, CD5-negative, CD8-negative, CD11a-negative, CD11b-negative, CD14-negative, CD19-negative, CD29-positive, CD31-negative, CD34-negative, CD38-negative, CD40-negative, CD44-positive, CD45-negative, CD49-positive, CD54-positive, CD66b-negative, CD79a-negative, CD80-negative, CD102-positive, CD106-positive, CD117-positive, CD121a-positive, CD121b-positive, CD123-positive, CD124-positive, CD133-negative, CD146-positive, CD166-positive, CD271-positive, B220-negative, Gr1-negative, MHCI-positive, MHCII-negative, SSEA4-negative, sca1-positive, Ter119-negative, and glycophorin A-negative. Cultured MSCs are capable of producing stem cell factor, IL7, IL8, IL11, TGF-beta, cofilin, galectin-1, laminin-receptor 1, cyclophilin A, and MMP-2. +
Cultured human fibrocytes are MHCI-positive, MHCII-positive, CD1a-negative, CD3-negative, CD4-negative, CD8-negative, CD10-negative, CD11b-positive, CD13-positive, CD14-negative, CD16-negative, CD18-positive, CD19-negative, CD25-negative, CD29-positive, CD32-positive, CD33-negative, CD34-positive, CD38-negative, CD40-positive, CD44-negative, CD45RO-positive, CD49a-positive, CD49b-positive, CD49c-negative, CD49d-negative, CD49e-positive, CD49f-negative, CD56-negative, CD58-positive, CD61-positive, CD64-positive, CD70-negative, CD71-positive, CD80-positive, CD83-negative, CD86-positive, CD103-negative, CD105-positive, CD181-positive, CD182-negative, CD183-positive, CD184-positive, CD185-negative, CD186-negative, CD191-positive, CD192-negative, CD193-positive, CD194-positive, CD195-positive, CD196-negative, CD197-positive, CD199-positive, desmin-negative, F4/80-positive, Gr1-positive, LSP-1-positive, MHCI-positive, MHCII-positive, alpha-SMA-negative, TCRab-negative, TCRgd-negative, and vimentin-positive. Fibrocytes are also capable of secreting angiogenin, bFGF, CCL2, CCL3, CCL4, CCL8, CXCL1, type I collagen, type III collagen, CTGF, fibronectin, GM-CSF, IL-1a, IL-6, IL-8, IL-10, M-CSF, MMP-9, PDGF-A, TGF-alpha, TGF-beta1, TNF-alpha, VEGF-A, and type I collagen. +
Human beings only have an embryonic cloaca, which is split up into separate tracts during the development of the urinary and reproductive organs[WP]. We deliberately exclude the wbbt class here, but may in future have a grouping class +
Note that the term "urogenital sinus" may refer to the primitive urogenital sinus present as a transient developmental structure in most mammals or it may refer to a condition in which an unseptated cloaca persists in animals longer than normal[MP] +
TODO - check fly mouthpart. note in uberon we distinguish between the mouth and the oral opening. the mouth is part of the digestive tract. TODO - check isa parent subdivision of head - is it a subdivision of the head or digestive tract +
note MA includes as parts of 'oral region' the tongue, tonsils, etc, so an equivalence to the oral opening itself may not be appropriate. +
Pancreatic beta cells are also reportedly CD284-positive. Upon activation, they upregulate their CD14 expression. +
Myofibroblasts are alpha-SMA-positive, CD34-negative, CD45-negative. They are reportedly capable of secreting IL-1beta, IL-6, and TNF-alpha. +
Taxon notes: In humans the cerebrum has three parts: the archipallium, the paleopallium and the neopallium. The developing telencephalon or forebrain is divided into pallium and subpallium. In amphibians, the cerebrum includes archipallium, paleopallium and some of the basal nuclei. Reptiles first developed a neopallium, which continued to develop in the brains of more recent species to become the neocortex of humans and Old World monkeys. In fish, the archipallium is the largest part of the cerebrum. Some researchers suggest the early archipallium gave rise to the human hippocampus[WP] +
Note this groups both skeletal and non-skeletal ligaments. What is called a "ligament" in many AOs is actually a skeletal ligament +
Morphology: Diameter 30_M-80 _M, abundant cytoplasm, low N/C ratio, eccentric nucleus. Irregular shape with pseudopods, highly adhesive. Contain vacuoles and phagosomes, may contain azurophilic granules; markers: Mouse & Human: CD68, in most cases CD11b. Mouse: in most cases F4/80+; role or process: immune, antigen presentation, & tissue remodelling; lineage: hematopoietic, myeloid. +
TODO - check relationship with epiblast. Note in FMA this is not a subclass of embryo, but in uberon embryo is the whole organism from zygote onwards and thus includes the blastula +
Keratinocytes are reportedly CDw210a-negative, CDw210b-positive, CD281-positive, CD282-positive, CD285-positive, IL22Ra1-positive, Human keratinocytes are reportedly capable of secreting BD-2, BD-3, hCAP-18, CXCL1, CXCL5, CXCL8, elafin, MMP-3, NGAL, PDGF-A, S100A7, S100A8, and S100A9. Transcription factors: STAT3-positive. +
Taxon notes: The hyoid bone and the clavicle are the only bones located in the throat of mammals. +
Editor note: - check - mucosa vs region of mucosa. In FMA these are subtypes of Mucosa: Mucosa of gallbladder, tongue, .... The following are subtypes of Region of mucosa: Mucosa of zone of stomach, trachea, bronchus, dorsum of tongue.... Depends on whether the covered area is an organ or organ component. Uberon does not regard organ vs organ component as crucial distinction and thus collapses these into a single class deliberately +
obsoletion recommended. The current part_of children were chosen as the intersection of what is stated in wikipedia and in the FMA. NIF: We are including Limbic System because it is still used by neuroscientists and others, but as a data annotation term, it is very poor because it is not a clearly defined entity. +
consider merging with transitional epithelium. MA uses the label 'urothelium' exclusively. FMA uses 'transitional epithelium' and has 'urothelium' as a sibling. FMA also lists 'urothelium' as the only example of 'transitional epithelium' +
The term has been used in a few different ways: * It is a pair of nuclear masses which form the basal ganglia, along with the subthalamic nucleus and the substantia nigra. * It may also refer to both the basal ganglia and internal capsule collectively.[2] * According to the 1917 version of Gray's Anatomy, it is the combination of the lentiform nucleus (also known as the lenticular nucleus) and the caudate nucleus * According to BrainInfo it is a part of the basal ganglia comprising the globus pallidus and striatum +
Naming conventions for pod terms under discussion within phenoscape group. TODO - add distinct term for skeleton and place AAO class here +
AO notes: we place the MA term musculature here, rather than under uberon:musculature, as this seems more appropriate given the structure of MA +
AO notes: in FMA/NIF this is a superclass of PM/AM - in BTO it is the mereological sum. We go with superclass here, as we are naming the class in the singular. Editor notes: check relationship to secondary meninx +
Editor notes: in BTO this is part of the cochlear modiolus, but this leads to the CG being in both the nervous and skeletal systems +
Originally described in the dendritic cell ontology (DC_CL:0000021 )(PMID: 19243617). These cells are also CD1a-high, CD14-negative, CD207-positive (langerin), CD324-positive (E-cadherin), and DCIR-positive. They reside in the epidermis. +
todo - move metadata to GO and obsolete this class. Note the inconsistency between the usage of the label 'cell component' in GO and CARO +
Editor note: revise after CARO2. todo - check the inclusion of FMA 'cardinal body part here', and check child terms for consistency +
This class was sourced from CARO, which was initially sourced from FMA. Nomenclature changes have been made. Note also AEO introduces a class AEO:0000013 'single-cell tissue' +
These cells are also reportedly CD4-negative and CD200-positive. They are also capable of producing CD40L and IFN-gamma. +
Lineage negative is described here as CD2-negative, CD3-negative, CD4-negative, CD5-negative, CD8a-negative, CD14-negative, CD19-negative, CD20-negative, CD56-negative, Ly6g-negative, and Ter119-negative. +
Originally described in the dendritic cell ontology (DC_CL:0000042)(PMID: 19243617). GMPs are reportedly CD34-positive, CD38-positive, CD45RA-positive, and CD123-positive. +
Morphology: Mononuclear cell, diameter 14-18 _M, fine azurophilic granules; markers: CD11b (shared with many other myeloid cells); location: Adult: bone marrow; Fetal: Liver, Yolk Sac; role or process: hematopoiesis, monocyte development; lineage: hematopoietic, myeloid. +
These cells are reportedly CD31-positive, CD34-positive, CD144-positive, CD309-positive, and TAL1-positive. +
Morphology: Mononuclear cell, diameter, 14 to 20 _M, N/C ratio 2:1-1:1. Nucleus may appear in variety of shapes: round, kidney, lobulated, or convoluted. Fine azurophilic granules present; markers: CD11b (shared with other myeloid cells), human: CD14, mouse: F4/80-mid,GR1-low; location: Blood, but can be recruited into tissues; role or process: immune & tissue remodelling; lineage: hematopoietic, myeloid. +
This class has been re-labeled to imply reference only to in vitro experimentally modified cells, similarly, the definition has been slightly updated to reflect this.experimentally modified cell' refers only to cells in vitro, and not modified in vivo/in environment cells . There is currently no class representing unmodified in vitro cells (other than the parent 'cell in vitro'), or a class representing modified native cells. More granular subclassing of experimentally modified cell can be found in ReO. MHB 1.12.12 +
Hepatic stellate cells are CD271-positive, desmin-positive, DDR-2-positive, GFAP-positive, synamin-positive, synaptophysin-positive, vimentin-positive, They are capable of producing angiotensin II, fibronectin, laminin, MMP-1, MMP-2, MMP-3, MMP-9, MMP-11, TGF-beta1, TIMP-1, TIMP-2, type I collagen, type III collagen, type IV collagen, and type VI collagen. +
cell type has a similar but slightly different meaning in botany (plants): see PO:0000074. +
Pericytes are CD10-positive, CD13-positive, CD31-negative, CD45-negative, CD106-positive, CD117-negative, CD140-positive, CD144-negative, CD146-positive, CD271-positive, CD325-positive, NG2-positive, RGS5-positive, SMA-positive, and desmin-positive. A subpopulation is CD248-positive. They are also capable of producing angiopoietin 1, CXCL12, TGF-beta, and VEGF-A. +
The term "neuroepithelial cell" is used to describe both this cell type and sensory epithelial cell (CL:0000098). +
Note that in FMA erythropoietic cells are types of nucleated erythrocytes and thus don't include erythrocytes. +
Matures in the bone marrow and account for <1% of leukocytes in the peripheral blood, spleen, and bone marrow. Basophils are described as being CD11a-positive, CD11b-positive, CD13-positive, CD15-positive, CD18-positive, CD21-positive, CD25-positive, CD29-positive, CD35-positive, CD40-positive, CD40L-positive, CD44-positive, CD45R-negative, CD46-positive, CD49a-positive, CD49b-positive, CD49d-positive, CD55-positive, CD59-positive, CD62L-positive, CD63-positive, CD69-positive, CD90-negative, CD116-positive, CD117-negative, CD124-positive, CD125-positive, CD131-positive, CD161-positive, CD184-positive, CD191-positive, CD192-positive, CD197-positive, CD200R3-positive, CD218-positive, CD282-positive, CD284-positive, CD289-positive, CD290-positive, CD294-positive, natural killer cell receptor 2B4-positive, smad1-positive, CD3-negative, CD4-negative, CD7-negative, CD8-negative, CD14-negative, CD15-negative, CD16-negative, CD19-negative, CD20-negative, CD34-negative, CD36-negative, CD45R-negative, CD56-negative, CD57-negative, CD235a-negative, and GR1-negative. Transcription factors- GATA1-positive, PU.1-positive. +
Eosinophils are also CD14-negative, CD32-positive, CD44-positive, CD48-positive, CD69-positive, CD192-negative, MBP1-positive, MBP2-positive, TLR2-negative, TLR4-negative, and lineage-negative (B220, CD2, CD14, CD19, CD56, CD71, CD117, CD123, CD235a (glycophorin A), and TER119). The cytokines IL-3, IL-5, and GM-CSF are involved in their development and differentiation. Usually considered CD16-negative, CD16 is observed on eosinophilic metamyelocyte. +
Note that this type of thymocyte has passed the beta-selection checkpoint and is rapidly proliferating and rearranging the T cell receptor alpha chain and expressing the CD8 coreceptor. This stage comes between the DN4 and DP stages. +
Note that this type of thymocyte is at the earliest stage of T cell receptor rearrangement of the beta, gamma, and delta T cell receptor chains. +
Note that this type of thymocyte has passed the beta-selection checkpoint and is rapidly proliferating and beginning to rearrange the T cell receptor alpha chain. +
MCP are CD16-positive, CD32-positive, CD34-positive, CD45-positive, integrin beta-7-positive, and lin-negative (CD2, CD3e, CD4, CD5, CD8a, CD14, CD19, CD20, CD27, integrin alpha-M, ly6c, ly6g, NCAM-1, and ter119). These cells also express the transcription factors GATA-1, GATA-2, and MITF, but not C/EBPa. +
Markers: CCR2-CX3CCR1+ (human, mouse, rat); human: CD16+, CCR5+, CD32/FcgRII-high, MHCII+, CD86+; mouse: CD62L-Ly6C-. +
These cells have not been exposed to antigen following thymic T-cell selection; found in blood and secondary lymphoid organs. +
Usage notes: note that we use the slightly verbose term 'thoracic segment of trunk' to avoid confusuon with insect thorax. todo - taxonomic constraints. Also, in FMA 'thorax' is a synonym for chest +
Taxon notes: Vertebrate specific. In arthropods 'abdomen' is the most distal section of the body which lies behind the thorax or cephalothorax. If need be we can introduce some grouping class +
Obsoleted in ZFA. Note that embryo is not classified as an embryonic structure - an embryonic structure is only the parts of an embryo +
Taxon notes: sponges do not seem to have a mesoderm and accordingly Amphimedon lacks transcription factors involved in mesoderm development (Fkh, Gsc, Twist, Snail)[http://www.nature.com/nature/journal/v466/n7307/full/nature09201.html]. Mesoderm may not be homologous across verteberates[UBERONREF:0000002] +
Editor note: consider indicating location. e.g. anterior. Note some AOs place this as part of oral opening, but it's not clear when this structure comes into existence. Taxon note: This class groups together disparate structures as all being the anterior part of the early metazoan digestive tract and precursor of the mouth. However, the developmental processes vary, so this class may be split in future. E.g. in mammals it is a rostral depression surrounded by prominences. Outgrowth of the prominences produces a stomodeal cavity. +
AO notes: (relaion to eye): MA, XAO, AAO and BTO consider this part of the eye. This is in contrast to GO, FMA, EHDAA2 (FMA has a class 'intra-ocular part of optic nerve' which represents the region of overlap). Relation to brain: part of diencephalon in EHDAA2, ZFA. In NIF, has the optic nerve root as part, which is a feature part of the diencphalon. Structure notes: We are consistent here with the FMA in considering CN-II continuous with the retina. Editor notes: - determine the precise relationship between CN II and the CNS +
Types of B lineage lymphocytes include B cells and antibody secreting cells (plasmablasts and plasma cells). +
Taxon notes: We restrict this to the vertebrate specific structure - see the grouping class 'food storage organ' for analogous structures in other species. Teleosts: Zebrafish is functionally stomach-less, but may retain ontogenic footprint. Although the precise shape and size of the stomach varies widely among different vertebrates, the relative positions of the oesophageal and duodenal openings remain relatively constant. As a result, the organ always curves somewhat to the left before curving back to meet the pyloric sphincter. However, lampreys, hagfishes, chimaeras, lungfishes, and some teleost fish have no stomach at all, with the oesophagus opening directly into the intestine. The gastric lining is usually divided into two regions, an anterior portion lined by fundic glands, and a posterior with pyloric glands. Cardiac glands are unique to mammals, and even then are absent in a number of species. The distributions of these glands vary between species, and do not always correspond with the same regions as in man. Furthermore, in many non-human mammals, a portion of the stomach anterior to the cardiac glands is lined with epithelium essentially identical to that of the oesophagus. Ruminants, in particular, have a complex stomach, the first three chambers of which are all lined with oesophageal mucosa -- Stomach#In_other_animals +
Terminology notes: Rector et al: One might be tempted to define 遯ｶ蠕Ｆart valve遯ｶ� equivalently to 遯ｶ蠢ｻalve in the heart遯ｶ�, and 遯ｶ蠢ｻalve遯ｶ� as a 遯ｶ蠕ｭtructure which functions as a valve遯ｶ�. But this combination results in the 遯ｶ蠖ｷoramen ovale遯ｶ� being classified as a kind of 遯ｶ蠕Ｆart valve遯ｶ�, since it is undoubtedly located in the heart and functions as a valve +
Editor notes: This class is currently a mixed bag, encompassing (1) the entirety of the mammalian aorta together with (2) the developmental and phylogenetic homologs of its segments: the ventral aorta and dorsal aortae. Taxon notes: All amniotes have a broadly similar arrangement to that of humans, albeit with a number of individual variations. In fish, however, there are two separate vessels referred to as aortas. The ventral aorta carries de-oxygenated blood from the heart to the gills; part of this vessel forms the ascending aorta in tetrapods (the remainder forms the pulmonary artery). A second, dorsal aorta carries oxygenated blood from the gills to the rest of the body, and is homologous with the descending aorta of tetrapods. The two aortas are connected by a number of vessels, one passing through each of the gills. Amphibians also retain the fifth connecting vessel, so that the aorta has two parallel arches[WP]. +
note that we use the term 'circulatory organ' for the generic class. Taxon notes:" the ascidian tube-like heart lacks chambers....The ascidian heart is formed after metamorphosis as a simple tube-like structure with a single-layered myoepi- thelium that is continuous with a single-layered pericar- dial wall. It lacks chambers and endocardium.... The innovation of the chambered heart was a key event in vertebrate evolution, because the chambered heart generates one-way blood flow with high pressure, a critical requirement for the efficient blood supply of large-body vertebrates... all extant vertebrates have hearts with two or more chambers (Moorman and Christoffels 2003)" doi:10.1101/gad.1485706 +
Currently this class encompasses only verteberate AOs but could in theory also include cephalopod - we may want to make a more specific class for vertebrate retina. note that this class excludes ommatidial retinas, as the retina must be part of an eyeball. Us the parent class photoreceptor array / light-sensitive tissue for arthropods +
Usage notes: This class encompasses a variety of light-detecting structures from different phyla with no implication of homology, from the compound insect eye to the vertebrate camera-type eye (distinct classes are provided for each). Structure notes: Note that whilst this is classified as an organ, it is in fact more of a unit composed of different structures: in Drosophila, it includes the interommatidial bristle as a part; we consider here the vertebrate eye to include the eyeball/eye proper as a part, with the eye having as parts (when present): eyelids, conjuctiva, +
Usage notes: true necks are considered to be present when the pectoral girdle is separate from the skull - Tiktaalik is the earliest known fish to have a true neck. +
The term leg can mean: [1] an appendage on which an animal walks [2] the entire hindlimb of a tetrapod [3] the segment of a human leg between knee and ankle (cf FMA) [4] the region of a hindlimb include the stylopod and zeugopod, but excluding the autopod. We define this class as [4], and thus 'leg' is compltely analagous to 'arm'. For [1], see the class 'locomotive weight-bearing appendage'. For [2] we use 'hindlimb'. For [3] we use the less open to misinterpretation 'hindlimb zeugopod'. Editor note: currently declared as overlapping foot, as AOs disagree over whether some ankle parts are in the leg or foot +
The pons is not present in zebrafish. In this ontology we currently have some structures which are applicable to zebrafish appearing as parts of the pons. Currently we only include the weaker dubious_for_taxon relationship ubtil this is resolved +
Most male birds (e.g., roosters and turkeys) have a cloaca (also present on the female), but not a penis. Among bird species with a penis are paleognathes (tinamous and ratites), Anatidae (ducks, geese and swans), and a very few other species (such as flamingoes). A bird penis is different in structure from mammal penises, being an erectile expansion of the cloacal wall and being erected by lymph, not blood. It is usually partially feathered and in some species features spines and brush-like filaments, and in flaccid state curls up inside the cloaca[WP] +
Originally described in the dendritic cell ontology (DC_CL: 0000003)(PMID: 19243617) These cells are also CD20-negative, MHCII-positive. +
Ovaries of some kind are found in the female reproductive system of many animals that employ sexual reproduction, including invertebrates. However, they develop in a very different way in most invertebrates than they do in vertebrates, and are not truly homologous. Many of the features found in human ovaries are common to all vertebrates, including the presence of follicular cells, tunica albuginea, and so on. However, many species produce a far greater number of eggs during their lifetime than do humans, so that, in fish and amphibians, there may be hundreds, or even millions of fertile eggs present in the ovary at any given time. In these species, fresh eggs may be developing from the germinal epithelium throughout life. Corpora lutea are found only in mammals, and in some elasmobranch fish; in other species, the remnants of the follicle are quickly resorbed by the ovary. In birds, reptiles, and monotremes, the egg is relatively large, filling the follicle, and distorting the shape of the ovary at maturity. Amphibians and reptiles have no ovarian medulla; the central part of the ovary is a hollow, lymph-filled space. The ovary of teleosts is also often hollow, but in this case, the eggs are shed into the cavity, which opens into the oviduct. Although most normal female vertebrates have two ovaries, this is not the case in all species. In birds and platypuses, the right ovary never matures, so that only the left is functional. In some elasmobranchs, the reverse is true, with only the right ovary fully developing. In the primitive jawless fish, and some teleosts, there is only one ovary, formed by the fusion of the paired organs in the embryo[WP]. +
note that the more specific class fallopian tube is included, which has mammal-specific relationships +
Most animals that lay eggs, such as birds and reptiles, have an oviduct instead of a uterus. In monotremes, mammals which lay eggs and include the platypus, either the term uterus or oviduct is used to describe the same organ, but the egg does not develop a placenta within the mother and thus does not receive further nourishment after formation and fertilization. Marsupials have two uteruses, each of which connect to a lateral vagina and which both use a third, middle "vagina" which functions as the birth canal. Marsupial embryos form a choriovitelline "placenta" (which can be thought of as something between a monotreme egg and a "true" placenta), in which the egg's yolk sac supplies a large part of the embryo's nutrition but also attaches to the uterine wall and takes nutrients from the mother's bloodstream. +
Taxon notes (via vHOG): "The distal end of the oviducts differentiates as a vagina in Metatheria and Eutheria." Liem KF, Bemis WE, Walker WF, Grande L, Functional Anatomy of the Vertebrates: An Evolutionary Perspective, Third Edition (2001) Orlando Fla.: Harcourt College Publishers, p.688 +
Function notes: The seminal vesicles secrete a significant proportion of the fluid that ultimately becomes semen. Lipofuscin granules from dead epithelial cells give the secretion its yellowish color. About 50-70%[2] of the seminal fluid in humans originates from the seminal vesicles, but is not expelled in the first ejaculate fractions which are dominated by spermatozoa and zinc-rich prostatic fluid. +
Taxon notes (from WP): Most vertebrates have some form of duct to transfer the sperm from the testes to the urethra. In cartilaginous fish and amphibians, sperm is carried through the archinephric duct, which also partially helps to transport urine from the kidneys. In teleosts, there is a distinct sperm duct, separate from the ureters, and often called the vas deferens, although probably not truly homologous with that in humans. In cartilaginous fishes, the part of the archinephric duct closest to the testis is coiled up to form an epididymis. Below this are a number of small glands secreting components of the seminal fluid. The final portion of the duct also receives ducts from the kidneys in most species. In amniotes, however, the archinephric duct has become a true vas deferens, and is used only for conducting sperm, never urine. As in cartilaginous fish, the upper part of the duct forms the epididymis. In many species, the vas deferens ends in a small sac for storing sperm. The only vertebrates to lack any structure resembling a vas deferens are the primitive jawless fishes, which release sperm directly into the body cavity, and then into the surrounding water through a simple opening in the body wall. +
Zebrafish epidermis consists only of living cells unlike terrestrial vertebrates in which dead, keratinized cells are present. In terrestrial vertebrates the epidermis often forms an outer keratinized or cornified layer, the stratum corneum. Interaction between the epideris and dermis gives rise to feathers (birds), hair and mammary glands (mammals), teeth and scales (placoid: chondrichthyans; cosmoids, ganoid, cycloid in bony fishes). +
This class generically groups trachea and analagous structures throughout metazoa. Consider renaming, as the term could be taken to mean lumen of tracheal system (e.g. in SNOMED) +
note that many anatomy ontologies consider gastrointestinal system synonymous with digestive system. here we follow MA in dividing digestive system into gastrointestinal and hepatobiliary. hepatobiliary includes the liver and biliary tract. species-specific AO classes are categorized according to whether liver is included. For example, XAO includes liver as part of XAO:0000125 alimentary system, so we assume this class is the more generic class +
In various sources such as Encyclopedia Britannica, the excretory and urinary systems are indeed the same system (see wikipedia talk page); we merge two BTO classes here +
These markers are associated with human cells. Originally described in the dendritic cell ontology (DC_CL:0000026)(PMID: 19243617). These cells are also CD281-positive (TLR1), CD282-positive (TLR2), CD284-positive (TLR4), CD286-positive (TLR6), CD287-positive (TLR7), and CD290-positive (TLR10). When activated, these cells are capable of producing IL-6, IL-8, and IL-15. +
AO notes: In FMA this is classified as a set of organs. ZFA musculature system has subtypes, so it is classified here. WBbt muscular system has subtypes so it goes here. Note that we use the MA term set of skeletal muscles here as it seems most appropriate (*not* MA:musculature). AAO is generally confused here. +
check nerve vs peripheral nerve vs tract. Check isa hierarchy - we include under neural tissue as well as neuron projection bundle for now. FMA also has this under organ segment +
Cell markers are associated with human hematopoietic stem cells. Originally described in the dendritic cell ontology (DC_CL:0000035)(PMID: 19243617). +
Surface markers are for mouse cells. Originally described in the dendritic cell ontology (DC_CL:0000041) CDP are reportedly CD2-negative, CD3-negative, CD4-negative, CD5-negative, CD8a-negative, CD11c-positive, CD14-negative, CD19-negative, CD20-negative, CD56-negative, B220-negative, Ly6g-negative, MHCII-positive, and Ter119-negative. (PMID: 19243617). +
note the distinct between entire sensory system and individual system. this reconciles is_a and part_of distinctions between ssAOs +
in ZFA and MA this is a subtype of sensory system. we should change sensory system to disambiguate parts and wholes +
'In vitro', translating literally to 'in glass', typically refers to a controlled, often sterile, laboratory setting where cells or other specimens are placed by some agent for the purpose of studying or manipulating them as part of some research investigation. This term is intended to contrast with 'native', which refers to cells or other biological entities that are found in a natural setting. +
Editor notes: Note we define this generically to include invertebrates, but the class may be split in future. We may explicitly make this a developmental class. AO Notes: in FMA this class has no children. +
Note that MA/FMA pharynx not part of digestive/alimentary system, we follow their lead here +
esophagus NOT part of gut in MA. part of gut in ZFA. part_of gut (via UGIT) in FMA. Consider splitting. Interspecies: The human oesophagus is 25 cm long and has a diameter of ca. 2 cm. Only little information was found on the oesophagus in rat, rabbit and pig. The oesophagus of rat (75 x 2 mm) and rabbit has no mucous glands and the cardia of the stomach has a well-developed sphincter, which prevents them from vomiting (Hebel and Stromberg, 1988; Manning et al., 1994). Morphologically the oesophagus is similar in man and pig; both are omnivores and have a non-keratinised epithelium, submucous glands and similar membrane enzymes. Like in humans, pigs can suffer from reflux oesophagitis and stress ulceration of the oesophagus. The pig oesophagus may therefore be a good model for investigation compared to the human oesophagus (Christie et al., 1995) +
currently we define saliva and salivary glands very generally in functional terms but it may be more appropriate to split this class. From WP: In most vertebrates, saliva does not contain any enzymes, consisting of mucus and water only, and its primary function is to moisten food while eating. As a result, true salivary glands are rarely found in fish or aquatic tetrapods, although there are often individual mucus-secreting cells. Amphibians have a single salivary gland, the intermaxillary gland, located in the forward part of the palate. Reptiles and birds normally have only very small glands on the lips, palate, and base of the mouth, although there are some birds with large glands, which produce a sticky saliva that helps in nest-building. The distinct parotid, submandibular, and sublingual glands are only developed in mammals.[3] The salivary glands of some species, however, are modified to produce enzymes; salivary amylase is found in many, but by no means all, bird and mammal species (including humans, as noted above). Furthermore, the venom glands of poisonous snakes, Gila monsters, and some shrews, are modified salivary glands +
Editor notes: Note we define this generically to include invertebrates, but the class may be split in future. We may explicitly make this a developmental class. AO Notes: in FMA this class has no children. +
Editor notes: Note we define this generically to include invertebrates, but the class may be split in future (vertebrates have some contribution from NC - UBERONREF:0000002). We may explicitly make this a developmental class. AO Notes: in FMA this class has no children. +
The mature structure of the neural tube exists when the tube has been segmented into the forebrain, midbrain, hindbrain and spinal cord regions. In addition neural crest has budded away from the epithelium[GO:0021915] +
Taxon notes: In the lungfish, sharks and rays the rectum opens into the cloaca which also receives wastes (urine) from the kidneys and material from the reproductive organs. In bony fish the rectum reaches the outside environment through the anus, which is normally situated just in front the urinary and reproductive openings. However in some fish the digestive tract may be curled back on itself, and in the Electric Eel (Electrophorus electricus) the anus is situated in the fish's throat. -- http://www.earthlife.net/fish/digestion.html +
Taxon/Terminology notes: strictly speaking the term intervertebral disk [applies to intervertebral cartilage] whose gel-like core is nucleus puloposus, by this definition only in mammals +
The existence of some membrane separating the pharynx from the stomach can be traced widely among the chordates. Thus amphioxus possesses an atrium by which water exits the pharynx, which has been argued (and disputed) to be homologous to structures in ascidians and hagfishes.[3] The urochordate epicardium separates digestive organs from the pharynx and heart, but the anus returns to the upper compartment to discharge wastes through an outgoing siphon (Thoracic_diaphragm#Comparative_anatomy_and_evolution) +
Editor notes: Note that in contrast to VSAO, this is a subset of the skeletal system, and thus includes intervertebral joints, cartilage and ligaments etc. Some ontologies such as AAO seem to purely refer to the skeleton +
Development notes: table 13.1 of Kardong is used to create the taxon-specific developmental relationships here, although some omissions are made for simplicity. Additional notes: Parathyroid glands are found in all adult tetrapods, although they vary in their number, and in their exact position. Mammals typically have four parathyroids, while other groups typically have six. Fish do not possess parathyroid glands, although the ultimobranchial glands, which are found close to the oesophagus, may have a similar function and could even be homologous with the tetrapod parathyroids. Even these glands are absent in the most primitive vertebrates, the jawless fish, but as these species have no bone in their skeletons, only cartilage, it may be that they have less need to regulate calcium metabolism. The conserved homology of genes and calcium-sensing receptors in fish gills with those in the parathryroid glands of birds and mammals is recognized by evolutionary developmental biology as evolution-using genes and gene networks in novel ways to generate new structures with some similar functions and novel functions[WP]. The parathryoid gland is not formed in fish, but is only found in tetrapods. In humans and chick it emerges from pouches 3 and 4, but in mice it is exclusively generated by the third pouch[PMID:16313389] +
TODO - add skeletal muscle organ? See GO:0060538 skeletal muscle organ development. Consider FBbt:00005073 - somatic muscle. +
terminological note: GO uses visceral and smooth interchangeably. However visceral can also be used in the sense of the viscera. Many fly annotations to smooth muscle terms. If we want to be inclusive of insects have to have a general definition of tissue that includes cells. +
Taxon notes: In humans, called the back, a large posterior area of the human body, rising from the top of the buttocks to the back of the neck and the shoulders. It is the surface opposite to the chest, its height being defined by the vertebral column (commonly referred to as the spine or backbone) and its breadth being supported by the ribcage and shoulders. The spinal canal runs through the spine and provides nerves to the rest of the body +
A cecum is present in most amniote species, and also in lungfish, but not in any living species of amphibian. In reptiles, it is usually a single median structure, arising from the dorsal side of the large intestine. Birds typically have two paired ceca, as, unlike other mammals, do hyraxes. Most mammalian herbivores have a relatively large cecum, hosting a large number of bacteria, which aid in the enzymatic breakdown of plant materials such as cellulose; in many species, it is considerably wider than the colon. In contrast, obligatory carnivores, whose diets contain little or no plant material, have a reduced cecum, which is often partially or wholly replaced by the vermiform appendix. Many fish have a number of small outpocketings, called pyloric ceca, along their intestine; despite the name they are not homologous with the cecum of amniotes, and their purpose is to increase the overall area of the digestive epithelium.[2] Some invertebrates, such as squid,[3] may also have structures with the same name, but these have no relationship with those of vertebrates.[WP] +
