Why is wave-like muscular movement important for maintaining food direction in the human digestive system?
Answer and explanation
Correct answer: It pushes food forward
The wave-like muscular movement is called peristalsis. Alternating contraction and relaxation of circular and longitudinal muscles in the alimentary canal produces a pressure wave that pushes food forward, even when a person changes posture. This maintains one-way movement from the oesophagus through the intestine. Therefore option A is correct; peristalsis does not make blood, produce bile, or open alveoli.
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What is the correct answer to this question?
It pushes food forward
Why is this the correct answer?
The wave-like muscular movement is called peristalsis. Alternating contraction and relaxation of circular and longitudinal muscles in the alimentary canal produces a pressure wave that pushes food forward, even when a person changes posture. This maintains one-way movement from the oesophagus through the intestine. Therefore option A is correct; peristalsis does not make blood, produce bile, or open alveoli.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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