Uberon definition : Common chamber into which the intestines and excretory system opens. Arises during
development in all vertebrates, but in many it becomes subdivided, lost or incorporated
into other structures;
Uberon related term : vent; cloacal chamber;
Uberon Development note : hindgut endoderm and proctodeal ectoderm.;
Uberon Homology note : A cloaca is apparently a primitive vertebrate feature because it occurs in most primitive
gnathostomes and persists in the embryos of almost all vertebrates.[well established][VHOG];
Uberon Taxon note : Human beings only have an embryonic cloaca, which is split up into separate tracts
during the development of the urinary and reproductive organs;
Common chamber into which the intestines and excretory system opens. Arises during
development in all vertebrates, but in many it becomes subdivided, lost or incorporated
into other structures