Buccopharyngeal membrane 5071309 199533532 2008-03-20T05:39:52Z 69.235.209.219 {{Infobox Embryology | Name = {{PAGENAME}} | Latin = | GraySubject = 6 | GrayPage = 47 | Image = Gray977.png | Caption = Human embryo about fifteen days old. [[Brain]] and [[heart]] represented from right side. [[Digestive tube]] and [[yolk sac]] in median section. (Buccopharyngeal membrane labeled in upper left.) | Image2 = | Caption2 = | System = | CarnegieStage = | Days = | Precursor = | GivesRiseTo = | MeshName = | MeshNumber = | DorlandsPre = m_08 | DorlandsSuf = 12522482 | }} Over the crescentic masses of the [[ectoderm]] and [[endoderm]] come into direct contact with each other and constitute a thin membrane, the '''buccopharyngeal membrane''' (or '''oropharyngeal membrane'''), which forms a [[septum]] between the primitive [[mouth]] and [[pharynx]]. In front of the buccopharyngeal area, where the lateral crescents of mesoderm fuse in the middle line, the [[pericardium]] is afterward developed, and this region is therefore designated the ''pericardial area''. ==External links== * {{EmbryologyUNC|hednk|020a}} {{developmental-biology-stub}} {{Gray's}} {{Development of digestive system}}[[Category:Embryology]]