NUTRITION
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE
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FALSE
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Either A or B
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None of the above
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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 esophagus: Food travels down a muscular tube in the chest called the esophagus (ih-SAH-fuh-gus). Waves of muscle contractions called peristalsis (per-uh-STALL-sus) force food down through the esophagus to the stomach. A person usually isn’t aware of the muscle movements that push food through the digestive tract.
Detailed explanation-3: -Gastrointestinal peristalsis involves the pharynx, esophagus, stomach, small intestine, large intestine, and rectum. The peristaltic movement of smooth muscle may also be found elsewhere throughout the body, including within the ureters, vas deferens, bile ducts, and glandular ducts.