APPLIED RADIOLOGICAL ANATOMY

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: -Peristalsis Propels the Chyme. Peristalsis consists of a wave of circular muscle contraction that propagates caudally. Both circular and longitudinal muscle layers participate: caudad to the peristaltic wave the circular muscle relaxes and the longitudinal muscle contracts.

Detailed explanation-3: -(payr-ih-STAL-sis) The rippling motion of muscles in the intestine or other tubular organs characterized by the alternate contraction and relaxation of the muscles that propel the contents onward.

Detailed explanation-4: -Food through the digestive system. Urine from the kidneys into the bladder. Bile from the gallbladder into the duodenum.