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Preferred Label : cloaca;

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;

Détails


Position du mot-clé dans l'(les) arborescence(s) : arborescence

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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

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29/07/2025


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