Where Is the Peristalsis Located?

It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach. There, the food is churned into a liquid mixture called chyme that moves into the small intestine where peristalsis continues.

Where in the small intestine does peristalsis occur?

The type of peristalsis that occurs in the small intestine, termed a migrating motility complex, begins in the lower portion of the stomach and pushes chyme forward along a short stretch of small intestine before dying out.

Is there peristalsis in the ileum?

In the WT mouse ileum, peristaltic waves to propagate from the oral to the anal end were frequently observed. The frequency of these peristaltic waves and their associated synchronous longitudinal and circular muscle contractions was increased by L-NAME. The peristaltic waves were abolished by TTX.