When the diaphragm relaxes, lungs_______ ,
and when diaphragm
contracts, lungs________.
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12
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.
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2
Answer:
When the diaphragm relaxes, lungs deflate,and when diaphragm contracts, lungs pull air
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