The following video is an example of intestinal peristalsis, the rthymic contraction and relaxation of the intestinal muscles to propel digested food through the intestinal tract. This process starts after food product is swallowed into the esophagus. It continues once the food is emptied through the pyloric valve into the small intestine. This motion allows for absorption of nutrients from the food product. Peristalsis continues throughout the small intestine and into the colon (large intestine) until defecation.

Click the following to view the Video of Intestinal Peristalsis

Peristalsis also happens within the tubes connecting the kidneys and bladder and also the tubes between the gallbladder and duodenum