Segmentation contractions (or movements) are a type of gastric motility.
Unlike peristalsis, which predominates in the esophagus, segmentation contractions predominate in the small intestine. While peristalsis involves one-way motion in the caudal direction, segmentation contractions move chyme in both directions, which allows greater mixing with the secretions of the intestine.
External links
- Physiology at MCG 6/6ch3/s6ch3_8
- Animation at colostate.edu
- Segmentation contraction at Dorland's Medical Dictionary
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