Buccopharyngeal membrane

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.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

Development of the digestive system

Gut

Foregut	Stomodeum Buccopharyngeal membrane Rathke's pouch Tracheoesophageal septum Accessory digestive glands Pancreatic bud Hepatic diverticulum

Midgut	Midgut

Hindgut	Urorectal septum Proctodeum Cloaca Cloacal membrane

Other

Mesentery	Dorsal Ventral

Thoracic diaphragm	Septum transversum

Cavities	Intra-embryonic coelom Extra-embryonic coelom

Index of digestion

Description	Anatomy

Disease

Treatment	Drugs

Categories

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Buccopharyngeal membrane