ANATOMY

Detailed explanation-1: -The dorsal foregut endoderm is part of the foregut and gives rise to the dorsal pancreatic bud as well as the esophagus.

Detailed explanation-2: -The tube is divided into 3 distinct sections; foregut, midgut and hindgut. Foregut gives rise to the esophagus, stomach, liver, gallbladder, bile ducts, pancreas and proximal duodenum. The midgut develops into the distal duodenum, jejunum, ileum, cecum, appendix, ascending colon, and proximal 2/3 of transverse colon.

Detailed explanation-3: -The foregut consists of the distal end of the esophagus, the stomach, and a portion of the duodenum. In addition, the pancreas, liver, and gallbladder form embryologically from the foregut and thus also are included in this discussion. The celiac trunk is the principal (but not exclusive) artery supplying the foregut.

Detailed explanation-4: -The foregut extends from the esophagus to the duodenum at the level of the major duodenal papilla where the pancreatic and common bile duct insert, and it consists of the esophagus, stomach, the proximal duodenum, as well as the liver, gallbladder, pancreas and spleen.

Detailed explanation-5: -The alimentary canal is a tube, usually coiled, which extends from the mouth to the anus, and consists of three regions: the foregut, midgut, and hindgut. The foregut is also known as the stomodaeum; the midgut is also known as the mesenteron; and the hindgut is also known as the proctodaeum.