THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The sphincter of Oddi is a cylindrically shaped smooth muscle located where the distal CBD and the main pancreatic duct meet at the entrance to the duodenum. The role of the sphincter of Oddi is to regulate the flow of bile and pancreatic enzymes into the duodenum by antegrade phasic contractions.

Detailed explanation-2: -The sphincter of Oddi is a muscular valve responsible for controlling the flow of bile and pancreatic secretions through the ampulla of Vater into the second part of the duodenum.

Detailed explanation-3: -The sphincter of Oddi is a small sphincter which is strategically placed at the junction of the bile duct and pancreatic duct with the duodenum. It regulates the flow of bile and pancreatic juice into the duodenum and prevents reflux of duodenal contents into the ducts.

Detailed explanation-4: -The sphincter of Oddi (also known as the sphincter of ampulla or choledochal sphincter) is a complex of four smooth muscle sphincters within the duodenal wall.