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 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

Answer 1

Answer: (C)

Inspiration is an active and expiration is a passive process.