Sphincter of the Prisoner

Sphincters are muscles that control the passage of food or gases through the opening. Sphincters can vary in shape and size, but they all perform the function of limiting access to certain areas of the body or organs.

One of the most important sphincter muscles is the pylorus. It is located in the stomach and plays a key role in maintaining gastrointestinal health

Sphincters. They are involuntary muscles that serve to close hollow organs or individual openings. For example, at the entrance to the stomach cavity there is a cardiac sphincter - a non-rudimentary muscle that prevents the passage of food from the esophagus to the stomach. This is an important digestive device.