Term: vent anatomical region
Name: vent
Synonyms: cloacal opening, cloacal vent
Definition: Is a surface structure and is the external opening of the cloaca.
Ontology: Anatomy Ontology [ZFA:0000298]

Name: anatomical region
Synonyms:
Definition: A 3D region in space without well-defined compartmental boundaries; for example, the dorsal region of an ectoderm.
Ontology: Spatial Ontology [BSPO:0000070]