Cloacal membrane

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.

Also known as embryonic cloacal membrane — per UBERON

The Cloacal membrane is a part of the Urinary.

Also identified as

• NCIT C34128 per UBERON
• SCTID 308826008 per UBERON
• UMLS C0231056 per UBERON

Associated Diseases