Cloaca

A dilated cavity extended caudally from the hindgut. In adult birds, reptiles, amphibians, and many fishes but few mammals, cloaca is a common chamber into which the digestive, urinary and reproductive tracts discharge their contents. In most mammals, cloaca gives rise to LARGE INTESTINE; URINARY BLADDER; and GENITALIA.

Year introduced: 1968

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Tree Number(s): A13.223, A16.178

MeSH Unique ID: D002988

Entry Terms:

• Cloacas

Previous Indexing:

• Rectum (1966-1967)

All MeSH Categories
Anatomy Category
Animal Structures
Cloaca

All MeSH Categories
Anatomy Category
Embryonic Structures
Cloaca