Preferred Label : cloacal membrane;
Uberon definition : The membrane that covers the embryonic cloaca, formed by the union of proctodeal (anal
pit) ectoderm and cloacal endoderm, with no intervening mesoderm; the urorectal septum
joins the cloacal membrane and divides it into an anal membrane and a urogenital membrane;
the point where the urorectal septum intersects the cloacal membrane is the future
site of the perineal body; proliferation of mesoderm and ectoderm around the cloacal
membrane produces primordial tissues of the external genitalia in both sexes: the
genital tubercle, genital folds, and genital swellings.;
Uberon synonym : embryonic cloacal membrane;
Uberon Homology note : In mammals, the cloaca exists as an embryonic structure that undergoes septation to
become distinct urethral, anal, and genital orifices.[well established][VHOG];
Origin ID : 0006217;
UMLS CUI : C0231056;
Automatic exact mappings (from CISMeF team)
- Semantic type(s)
- UMLS correspondences (same concept)
- Uberon cross reference
- adjacent to
- contributes to morphology of
- develops from
- develops into
- has developmental contribution from
- part of
The membrane that covers the embryonic cloaca, formed by the union of proctodeal (anal
pit) ectoderm and cloacal endoderm, with no intervening mesoderm; the urorectal septum
joins the cloacal membrane and divides it into an anal membrane and a urogenital membrane;
the point where the urorectal septum intersects the cloacal membrane is the future
site of the perineal body; proliferation of mesoderm and ectoderm around the cloacal
membrane produces primordial tissues of the external genitalia in both sexes: the
genital tubercle, genital folds, and genital swellings.
