endodermal cloaca

en·do·der·mal clo·a·ca

terminal portion of the hindgut internal to the cloacal membrane of the embryo.

endodermal cloaca

a part of the cloaca in the developing embryo that lies internal to the cloacal membrane and gives rise to the bladder and urogenital ducts. Compare ectodermal cloaca. See also urogenital sinus.
References in periodicals archive ?
8] Rudimentary horn with congenital rectovaginal fistula forms when Mullerian eminences open in the dorsal segment of the endodermal cloaca.
The bladder and rectum originate from a single hollow tube, the endodermal cloaca.