APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Peristalsis is the automatic wave-like movement of the muscles that line your gastrointestinal tract. Peristalsis moves food through your digestive system, beginning in your throat when you swallow and continuing through your esophagus, stomach and intestines while you digest.

Detailed explanation-2: -Segmentation, which occurs mainly in the small intestine, consists of localized contractions of circular muscle of the GI tract. These contractions isolate small sections of the intestine, moving their contents back and forth while continuously subdividing, breaking up, and mixing the contents.

Detailed explanation-3: -Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract.

Detailed explanation-4: -Peristaltic Waves Move Nutrients and Waste Through the Intestines. Most nutrient absorption from the foods we eat occurs in the small intestine. When chyme passes from the stomach into the small intestine, peristaltic waves shift it back and forth and mix it with digestive enzymes and fluids.

Detailed explanation-5: -Peristalsis is the involuntary contraction and relaxation of longitudinal and circular muscles throughout the digestive tract, allowing for the propulsion of contents beginning in the pharynx and ending in the anus.