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Solution


Q.

Vital capacity of lung is ________.               [2023]
1 IRV + ERV + TV − RV  
2 IRV + ERV + TV  
3 IRV + ERV  
4 IRV + ERV + TV + RV  

Ans.

(2)

Vital capacity (VC) is the maximum volume of air a person can breathe in after forced expiration or maximum volume of air a person can breathe out after forced inspiration. This includes ERV, TV and IRV.