NEET Biology question

The inspiratory reserve volume + tidal volume + expiratory reserve volume is the same as

(A)inspiratory capacity + expiratory reserve volumeCorrect
(B)total lung capacity - functional residual capacity
(C)inspiratory capacity + functional residual capacity
(D)inspiratory capacity + residual volume

Answer: (A)

Solution

IRV+TV+ERV is, by definition, the vital capacity; since inspiratory capacity equals TV+IRV, adding ERV to it gives (TV+IRV)+ERV = IRV+TV+ERV exactly, so

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Question ID VK-119382