A) lesser than tidal volume
B) greater than inspiratory volume
C) greater than vital capacity
D) greater than tidal volume
Correct Answer: D
Solution :
Residual Volume (RV) is the volume of air which remain still in the lungs after the forceful expiration. It is about 1500 mL. Tidal Volume (TV) is the volume of air, inspired or expired with each normal breath. In adult person, it is about 500 mL. Inspiratory Reserve Volume (IRV) is the extra amount of air which can be inspired forcefully after a normal inspiration. It is about 2500-3000 mL. Vital Capacity (VC) is the amount of air which can inhale and exhale with maximum effort. It is about 3.5 - 4.5 L.
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