HUMAN NUTRITION

Detailed explanation-1: -Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.

Detailed explanation-2: -A series of normal coordinated, rhythmic muscle contractions, that occurs automatically to move food through the digestive tract is called peristalsis.

Detailed explanation-3: -Peristaltic waves occur in the esophagus, stomach, and intestines. The waves can be short, local reflexes or long, continuous contractions that travel the whole length of the organ, depending upon their location and what initiates their action.

Detailed explanation-4: -Muscularis Externa This is composed of two discrete layers: an inner layer of muscle that runs in an up and down fashion (longitudinal muscle); and an outer layer of muscle that runs in a circular fashion (circular muscle). The main function of these two layers is to provide peristalsis to the gut.

Detailed explanation-5: -Beginning in the esophagus, food moves smoothly through your entire digestive tract by a process called peristalsis, a coordinated, rhythmic wave of muscular contraction that travels in a single direction.