LargeInt — KinFAST

Adaptive test — questions are selected based on your ability estimate. — Tag: MassPeristalsis

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How does mass peristalsis in the large intestine differ from haustral churning?

Mass peristalsis occurs exclusively in the ascending colon whereas haustral churning occurs only in the descending colon. Mass peristalsis is a strong peristaltic wave that drives contents from the transverse colon toward the rectum whereas haustral churning moves contents between adjacent haustra. Mass peristalsis involves voluntary skeletal muscle contractions whereas haustral churning relies on involuntary smooth muscle contractions. Mass peristalsis slowly moves contents between individual haustra whereas haustral churning produces a single powerful wave toward the rectum.

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