MEDICAL
GALLBLADDER AND EXCRETORY SYSTEM OF THE LIVER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Muscle contractions that help to squeeze food through the esophagus are known as
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chemical digestion.
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chyme.
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microvilli.
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peristalsis.
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Explanation:
Detailed explanation-1: -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.
Detailed explanation-2: -The smooth muscle portion of the esophagus has myenteric plexus similar to the small intestine. However, peristalsis in the smooth muscle portion of the esophagus is very different than the intestine; the esophagus, but not intestine, can produce peristalsis at will (primary peristalsis).
Detailed explanation-3: -Primary esophageal peristalsis. Secondary esophageal peristalsis. Tertiary esophageal peristalsis.
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