Peristalsis

Definition

Peristalsis is a series of wave-like muscle contractions that moves food through the digestive tract. It involves the rhythmic contraction and relaxation of muscles in the organ walls to push contents forward.

Related terms

Esophagus:

A muscular tube that conveys food from the mouth to the stomach using peristaltic movements.

Digestive Tract: The series of hollow organs joined in a long, twisting tube from mouth to anus where digestion and nutrient absorption occur.

Smooth Muscle:

The type of muscle found in the walls of the digestive tract that contracts involuntarily to facilitate peristalsis