loading...| Preferred Name |
intestinal villus |
| Synonyms |
enteric villus small intestine villus enteric villi villus intestinal villus layer intestinal villi villus intestinalis (intestinum tenue) enteric villous villi intestinales |
| Definitions |
The tiny hair-like projections that protrude from the inside of the small intestine that contain blood vessels that capture digested nutrients that are absorbed through the intestinal wall; the villi increase the absorptive surface area of the small intestine by approximately 30-fold. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0001213 |
| database_cross_reference |
MA:0001563 FMA:15072 UMLS:C1519988 Wikipedia:Intestinal_villus TAO:0005125 SCTID:23230007 EMAPA:35784 NCIT:C33874 ZFA:0005125 BTO:0003121 |
| definition |
The tiny hair-like projections that protrude from the inside of the small intestine that contain blood vessels that capture digested nutrients that are absorbed through the intestinal wall; the villi increase the absorptive surface area of the small intestine by approximately 30-fold. |
| depicted by |
http://upload.wikimedia.org/wikipedia/commons/3/38/Small_intestine_low_mag.jpg |
| editor note |
in mammals, villi are (largely?) absent from the large intestine, so we treat this as equivalent to small intestinal villus. small/large subdivision may not make sense for all species for which this is present (see ZFA). Note that VHOG quotes ISBN:978-0030223693 as suggesting there are some villi in the large intestine |
| external_definition |
The entire digestive tract is lined by well developed villi, which are longest in the intestinal bulb and decrease progressively in size towards the caudal end of the intestine. No crypts are present, but, the regions between the villi, the intervillus pockets, have a crypt-like function. Cells are produced in the intervillus pockets and shed from the villus tips. Crosnier et al. 2005[TAO] |
| external_ontology_notes |
the BTO class refers to a generic villous |
| has exact synonym |
enteric villus enteric villi villus intestinal villi villus intestinalis (intestinum tenue) enteric villous villi intestinales |
| has part |
http://purl.obolibrary.org/obo/UBERON_0012425 |
| has related synonym |
small intestine villus intestinal villus layer villi intestinales |
| has_alternative_id |
UBERON:0007607 |
| has_obo_namespace |
uberon |
| id |
UBERON:0001213 |
| in_subset |
http://purl.obolibrary.org/obo/uberon/core#uberon_slim |
| label |
intestinal villus |
| notation |
UBERON:0001213 |
| part_of | |
| prefLabel |
intestinal villus |
| treeView | |
| subClassOf |