Peristalsis is a series of muscle contractions. These contractions occur in your digestive tract. Peristalsis is also seen in the tubes that connect the kidneys to the bladder.
Peristalsis is an automatic and important process. It moves:
- Food through the digestive system
- Urine from the kidneys into the bladder
- Bile from the gallbladder into the duodenum
Bile is a fluid that is made and released by the liver and stored in the gallbladder. Bile helps with digestion. It breaks down fats into fatty acid...Read Article Now Book Mark Article
Peristalsis is a normal function of the body. It can sometimes be felt in your belly (abdomen) as gas moves along.
Peristalsis - Animation
This animation follows the processing of food through the digestive tract, focusing on the intestinal peristaltic movement (a series of wave-like muscle contractions that moves the food mixture down the digestive tract).
Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Hall JE, Hall ME. General principles of gastrointestinal function - motility, nervous control, and blood circulation. In: Hall JE, Hall ME, eds. Guyton and Hall Textbook of Medical Physiology. 14th ed. Philadelphia, PA: Elsevier; 2021:chap 63.
Merriam-Webster's Medical Dictionary. Peristalsis. www.merriam-webster.com/medical. Accessed October 22, 2020.