Rings of muscle in the digestive tract that can open and close,regulating the movement of food into or out of parts of the digestive system are:

Question

Quizplus · Accepted Answer

The rings of muscle in the digestive tract that regulate the movement of food into or out of parts of the digestive system are called sphincters. Rings of muscle, such as the lower esophageal sphincter, pyloric sphincter, and anal sphincter, control the movement of food into and out of the stomach and intestines.

Rings of Muscle in the Digestive Tract That Can Open