loading...| Preferred Name |
stomach |
| Synonyms |
anterior intestine ventriculus mesenteron gaster stomach chamber |
| Definitions |
An expanded region of the vertebrate alimentary tract that serves as a food storage compartment and digestive organ. A stomach is lined, in whole or in part by a glandular epithelium. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0000945 |
| database_cross_reference |
UMLS:C0038351 MIAA:0000051 BTO:0001307 AAO:0000579 XAO:0000128 MAT:0000051 ANISEED:1235297 TAO:0002121 galen:Stomach CALOHA:TS-0980 OpenCyc:Mx4rvVjlqpwpEbGdrcN5Y29ycA EHDAA:2993 EV:0100070 MESH:A03.492.766 FMA:7148 GAID:293 EMAPA:17021 VHOG:0000408 EFO:0000837 NCIT:C12391 MA:0000353 EHDAA2:0001915 http://www.snomedbrowser.com/Codes/Details/181246003 |
| depicted by |
Stomach:diagram.svg |
| editor preferred label |
stomach |
| external_definition |
Portion of alimentary canal with increased circular and longitudinal smooth muscle. Bounded posteriorly by the pyloric sphincter. Mucosal lining has increased folding.[AAO] |
| has_narrow_synonym |
stomach chamber |
| has_obo_namespace |
uberon |
| has_related_synonym |
anterior intestine ventriculus mesenteron gaster |
| homology_notes |
It appears that the stomach has an ancient origin. The stomach first appears in the fish lineage. The prevertebrate chordates do not have a true stomach, whereas the cartilaginous and bony fish do. Although most fish do have a true stomach, some fish species appear to have lost the stomach secondarily. The remaining vertebrate lineages do have a true stomach (at least in the adult animal), although there is great variation in the size and shape of the stomach.[well established][VHOG] |
| id |
UBERON:0000945 |
| imported from | |
| in subset |
http://purl.oboInOwllibrary.org/oboInOwl/uberon/core#uberon_slim http://purl.oboInOwllibrary.org/oboInOwl/uberon/core#pheno_slim http://purl.oboInOwllibrary.org/oboInOwl/uberon/core#organ_slim http://purl.oboInOwllibrary.org/oboInOwl/uberon/core#vertebrate_core http://purl.oboInOwllibrary.org/oboInOwl/uberon/core#major_organ http://purl.oboInOwllibrary.org/oboInOwl/uberon/core#efo_slim |
| label |
stomach |
| notation |
UBERON:0000945 |
| prefLabel |
stomach |
| 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 |
| textual definition |
An expanded region of the vertebrate alimentary tract that serves as a food storage compartment and digestive organ. A stomach is lined, in whole or in part by a glandular epithelium. |
| subClassOf |
http://purl.obolibrary.org/obo/UBERON_0004921 |