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What happens to the diaphragm during breathing in

User Ben Nutzer
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1 Answer

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19 votes

Answer:

Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.

User Yegong
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