stomach - Ontology Report - Rat Genome Database

CROSS-SPECIES ANATOMY - ANNOTATIONS	{{ watchLinkText }}
The Basic subset of the UBERON integrated, cross-species anatomy ontology is downloaded weekly from http://berkeleybop.org/ontologies/uberon/basic.obo. For more information about this ontology see the "About" page on the UBERON website at http://uberon.github.io/about.html.

Term:	stomach	go back to main search page
Accession:	UBERON:0000945	browse the term
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.
Comment:	[homology-note] "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]" xsd:string {date_retrieved="2012-09-17", external_class="VHOG:0000408", ontology="VHOG", source="DOI:10.1046/j.1525-142x.2000.00076.x Smith DM, Grasty RC, Theodosiou NA, Tabin CJ, Nascone-Yoder NM, Evolutionary relationships between the amphibian, avian, and mammalian stomachs. Evolution and development (2000)", source="http://bgee.unil.ch/"}; [taxon-note] "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" xsd:string {source="WP:Stomach#In_other_animals"}
Synonyms:	narrow_synonym:	stomach chamber
	related_synonym:	anterior intestine; gaster; mesenteron; ventriculus
	xref:	AAO:0000579; ANISEED:1235297; BTO:0001307; CALOHA:TS-0980; EFO:0000837; EHDAA2:0001915; EHDAA:2993; EMAPA:17021; EV:0100070; FMA:7148; GAID:293; MA:0000353; MAT:0000051; MESH:D013270; MIAA:0000051; NCI:C12391; SCTID:181246003; TAO:0002121; UMLS:C0038351; VHOG:0000408; Wikipedia:Stomach; XAO:0000128; galen:Stomach
	external_ontology:	never_in_taxon NCBITaxon:7864; never_in_taxon NCBITaxon:7878; never_in_taxon NCBITaxon:7955; never_in_taxon NCBITaxon:9259; present_in_taxon NCBITaxon:9606

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Term paths to the root

Path 1
Term	Annotations
UBERON ontology	0
anatomical entity	0
material anatomical entity	0
anatomical structure	0
anatomical system	0
alimentary part of gastrointestinal system	0
food storage organ	0
stomach	0
equine glandular stomach	0
forestomach-glandular stomach junction	0
gastroduodenal junction +	0
gizzard +	0
mesentery of stomach +	0
ruminant stomach +	0
wall of stomach +	0
zone of stomach +	0
Path 2
Term	Annotations
UBERON ontology	0
anatomical entity	0
material anatomical entity	0
anatomical structure	0
multicellular anatomical structure	0
multicellular organism	0
embryo	0
embryonic structure	0
presumptive structure	0
presumptive gut	0
digestive tract	0
subdivision of digestive tract	0
foregut	0
stomach	0
equine glandular stomach	0
forestomach-glandular stomach junction	0
gastroduodenal junction +	0
gizzard +	0
mesentery of stomach +	0
ruminant stomach +	0
wall of stomach +	0
zone of stomach +	0

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CROSS-SPECIES ANATOMY - ANNOTATIONS