Muscles in the propulsive and receiving segments of the GI tract respond differently to food movement through the gut. Which of the following statements correctly describes activity in the propulsive segment?
A. The circular and longitudinal muscles are contracted.
B. The longitudinal muscles are contracted and the circular muscles are relaxed.
C. Both the longitudinal muscles and circular muscles are relaxed.
D. The circular muscles are contracted and the longitudinal muscles are relaxed.
AnswerTags:
MCQ, Peristasis, Physiology
Category:
Physiology MCQs
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