NUTRITION
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why is the oesophagus muscular?
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To break the food into even smaller pieces
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To produce enzymes to digest food
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To push food from the mouth into the stomach
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To move the food back and forth in two directions
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Explanation:
Detailed explanation-1: -At the opening of your lower esophagus, there’s another ring-shaped muscle called the lower esophageal sphincter (LES). Like the upper esophageal sphincter (UES), it senses when food and liquid are coming. It relaxes and lets the food pass through to your stomach.
Detailed explanation-2: -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.
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