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. [ http://en.wikipedia.org/wiki/Cloacal_membrane MP:0011837 MP:anna ]
Synonyms: embryonic cloacal membrane
Term information
- EMAPA:16832
- SCTID:308826008
- EHDAA:2933
- Wikipedia:Cloacal_membrane
- VHOG:0001198
- EHDAA2:0000257
- FMA:295525
- EHDAA:214
- NCIT:C34128
pheno_slim, emapa_ehdaa2
Term relations
- membranous layer
- has developmental contribution from some endoderm
- develops from some primitive streak
- has developmental contribution from some ectoderm
- contributes to morphology of some embryonic cloaca
- part of some embryonic cloaca