EVERYDAY SCIENCE

Detailed explanation-1: -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.

Detailed explanation-2: -Foregut: It consists of a mouth which is followed by a short tubular pharynx. The pharynx leads into a narrow and short tube known as oesophagus which in turn opens into a sac like structure called crop. Crop is used for storing food. The crop is followed by a gizzard.

Detailed explanation-3: -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-4: -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.