Motility in the Small Intestine
Advanced Anatomy & Physiology
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Digestive System Physiology
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Physiology
Q. Which smooth muscle layer is most active during segmentation?
a
Both the circular and longitudinal layers are active at the same time.
b
Only the longitudinal layer is active.
c
Only the circular layer is active.
d
The circular layer and longitudinal layers alternate contracting.
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