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प्रश्न
During exhalation, the ribs ______.
विकल्प
move outwards
move downwards
move upwards
do not move at all
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उत्तर
During exhalation, the ribs move downwards.
Explanation:
During exhalation, the ribs move downwards to help decrease the volume of the chest cavity, pushing air out of the lungs.
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