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Uberon Ontology

anus

Term ID
UBERON:0001245
Synonyms
  • anal opening
  • anal orifice
  • opening of terminal part of digestive tract
  • proctodeum
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. (2)
References
Ontology
Uberon Ontology
Relationships
develops from
is part of
has parts
is a type of