MCQ Physiology Answer 16
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Peristaltic activity is maintained by the enteric nervous system, which coordinates smooth muscle activity to create receiving and propulsive segments. In the receiving segment, the longitudinal muscles ahead of the intraluminal contents contract and the circular muscles relax causing the lumen to expand and receive the intraluminal contents. Circular smooth muscles in the propulsive segment behind the intraluminal contents contract and the longitudinal muscles relax.
Tags: MCQ, Peristasis, Physiology
Category: Physiology MCQs
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