During exhalation, the ribs move:
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Correct Answer: Option B
Explanation:
During exhalation, intercostal muscles relax, causing the ribs to move downward and inward. This reduces chest volume and pushes air out of the lungs.
During exhalation, intercostal muscles relax, causing the ribs to move downward and inward. This reduces chest volume and pushes air out of the lungs.