Peristalsis are a series of muscle contractions that occur in your digestive tract. Peristalsis is also seen in some organs that connect the kidneys to the bladder.
Peristalsis is an automatic and important process. It moves:
Peristalsis is a normal function of the body. It can sometimes be felt in your belly (abdomen) as gas moves along.
Afdhal NH. Diseases of the gallbladder and bile ducts. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 158.