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What do you call the wavelike contraction of the smooth muscles of digestive tract pushes food in small sections through the gastro-intestinal tube?
A.mixing movement
B.parietal movement
C.contractile movement
D.peristaltie movement


Sagot :

Answer: D

Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.13