The foregut ends and the midgut begins where the bile duct enters the duodenum; the midgut ends, and the hindgut begins at the junction of the right and the middle thirds of the transverse colon.

Where does foregut start and end?

Adult foregut

In mammals, it is composed of large number of interconnected ganglia that are arranged into two concentric rings embedded throughout the gut wall, beginning in the esophagus and ending in the anus.

What is considered the foregut?

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.