loading...| Preferred Name |
anus |
| Synonyms |
anal opening proctodeum anal orifice opening of terminal part of digestive tract |
| Definitions |
Orifice at the opposite end of an animal's digestive tract from the mouth. Its function is to expel feces, unwanted semi-solid matter produced during digestion, which, depending on the type of animal, may be one or more of: matter which the animal cannot digest, such as bones; food material after all the nutrients have been extracted, for example cellulose or lignin; ingested matter which would be toxic if it remained in the digestive tract; and dead or excess gut bacteria and other endosymbionts. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0001245 |
| database_cross_reference |
GAID:312 FMA:15711 OpenCyc:Mx4rvVjaEZwpEbGdrcN5Y29ycA EV:0100082 MESH:A03.492.411.495.767.288 WBbt:0005364 NCIT:C43362 TGMA:0001279 BTO:0001680 UMLS:C0003461 MA:0000331 galen:Anus CALOHA:TS-2005 FBbt:00003148 TADS:0000066 SCTID:181262009 Wikipedia:Anus |
| definition |
Orifice at the opposite end of an animal's digestive tract from the mouth. Its function is to expel feces, unwanted semi-solid matter produced during digestion, which, depending on the type of animal, may be one or more of: matter which the animal cannot digest, such as bones; food material after all the nutrients have been extracted, for example cellulose or lignin; ingested matter which would be toxic if it remained in the digestive tract; and dead or excess gut bacteria and other endosymbionts. |
| depicted by |
http://upload.wikimedia.org/wikipedia/commons/6/65/Protovsdeuterostomes.svg http://upload.wikimedia.org/wikipedia/commons/7/75/Anorectum.gif |
| develops_from | |
| distalmost_part_of | |
| has_exact_synonym |
anal opening anal orifice opening of terminal part of digestive tract |
| has_obo_namespace |
uberon |
| has_related_synonym |
proctodeum |
| id |
UBERON:0001245 |
| in_subset | |
| label |
anus |
| notation |
UBERON:0001245 |
| part_of | |
| prefLabel |
anus |
| treeView | |
| UBPROP_0000007 |
anal |
| UBPROP_0000008 |
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 |
| subClassOf |