NEET Biology question

Which of the following statements about the mechanism of ventilation/breathing is incorrect?

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

Answer: (C)

Solution

In fact, it is inspiration that is the active process (requiring muscular contraction) while quiet expiration is passive (driven by elastic

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Question ID VK-119279