Buccopharyngeal membrane

Buccopharyngeal membrane
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.

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 tract glands other Physiology enzymes Development

Disease	Congenital Neoplasms and cancer Inflammatory bowel disease Gluten sensitivity Other Symptoms and signs eponymous Blood tests

Treatment	Procedures Drugs anabolic steroids antacids diarrhoea and infection bile and liver functional gastrointestinal disorders laxatives peptic ulcer and reflux nausea and vomiting other Surgery