Buccopharyngeal membrane

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Buccopharyngeal membrane
Gray977.png
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.)
Details
Latin Membrana buccopharyngea
Identifiers
Gray's p.47
Dorlands
/Elsevier
m_08/12522482
Anatomical terminology

The region where the crescentic masses of the ectoderm and endoderm come into direct contact with each other constitutes 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.

This article incorporates text from a public domain edition of Gray's Anatomy.