Which of the following statements about the mechanism of ventilation is incorrect? (A) As the di...

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Which of the following statements about the mechanism of ventilation is incorrect?
(A) As the diaphragm relaxes, air is expelled from the respiratory system
(B) During inspiration, the lungs act as suction pump
(C) Inspiration is a passive and expiration is an active process
(D) For quiet breathing, external intercostal muscles and diaphragm play an important role
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