Question
After a deep inspiration and maximum expiration, the capacity of lungs is known as
vital capacity
tidal volume
IRV
ERV
Solution
A.
vital capacity
Vital capacity is the amount of air which one can inhale and exhale with maximum effort. It is the sum of tidal voulme, inspiratory reserve volume and expiratory reserve volume.
VC = TV + IRV + ERV
= 500 + 3100 + 1200
= 4800 mL