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Describe what happened to the diaphragm when air enters the lungs.

Sagot :

Harleen5522idn

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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