The vital capacity of the lung is equal to: ( | vedclass

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(A) Vital Capacity $(VC)$ is defined as the maximum volume of air a person can breathe in after a forced expiration. It includes the Inspiratory Reser

Vedclass · Accepted Answer

$4000$

Vedclass · Answer

(A) Vital Capacity $(VC)$ is defined as the maximum volume of air a person can breathe in after a forced expiration. It includes the Inspiratory Reserve Volume $(IRV)$,Tidal Volume $(TV)$,and Expiratory Reserve Volume $(ERV)$. Mathematically,$VC = IRV + TV + ERV$. In a healthy adult,the average values are approximately $IRV \approx 2500-3000 \, ml$,$TV \approx 500 \, ml$,and $ERV \approx 1000-1100 \, ml$. Summing these values,$VC \approx 3000 + 500 + 1000 = 4500 \, ml$,which is approximately $4000-4600 \, ml$. Among the given options,$4000 \, ml$ is the most accurate representation of the vital capacity.

The vital capacity of the lung is equal to: (in $, ml$)

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