Vital capacity of lung is ______ .

Vital capacity of lung is ______ .
  1. IRV + ERV + TV
  2. IRV + ERV
  3. IRV + ERV + TV + RV
  4. IRV + ERV + TV - RV

Solution

Vital Capacity (VC) is the maximum volume of air a person can breathe in after a forced expiration. This includes ERV, TV and IRV or the maximum volume of air a person can breathe out after a forced inspiration. Hence, option A is correct, i.e., VC= TV + IRV + ERV.

Asked in: NEET 2023 (All India)

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