Cloacal membrane 5025307 198404842 2008-03-15T13:40:47Z Leonini 6520999 {{Infobox Embryology | Name = {{PAGENAME}} | Latin = | GraySubject = 6 | GrayPage = 47 | Image = Gray991.png | Caption = Tail end of human embryo from fifteen to eighteen days old. | Image2 = | Caption2 = | System = | Days = 15 | CarnegieStage = 7 | Precursor = caudal end of the [[primitive streak]] | GivesRiseTo = | MeshName = | MeshNumber = | DorlandsPre = m_08 | DorlandsSuf = 12522517 | }} The '''cloacal membrane''' is the membrane that covers the [[embryonic cloaca]] when still in the [[development of the urinary and reproductive organs]]. It is formed by [[ectoderm]] and [[endoderm]] coming into contact with each other. After separation of the cloaca into the urogenital and anal parts, the cloacal membrane, in turn, is separated into a [[urogenital membrane]] and an [[anal membrane]]. ==External links== * {{EmbryologySwiss|hdisqueembry/triderm04}} * {{EmbryologyUNC|genital|021}} * [http://embryology.med.unsw.edu.au/Medicine/images/stage11cloacal.jpg Diagram at unsw.edu.au] * [http://www.ana.ed.ac.uk/anatomy/humat/notes/embryo/urogenital/cloacal.htm Overview at ana.ed.ac.uk] {{developmental-biology-stub}} {{Gray's}} {{Development of urinary and reproductive systems}}[[Category:Embryology]]