Question

The vital capacity of lungs is equal to

• A. $\text{IRV}+\text{ERV}+\text{TV}$
• B. $\text{IRV}+\text{ERV}+\text{TV}+\text{RV}$
• C. $\text{IRV}+\text{ERV}+\text{TV}-\text{RV}$
• D. $\text{IRV}+\text{ERV}$

Answer 1

The correct option is A $\text{IRV}+\text{ERV}+\text{TV}$

Vital Capacity (VC)

Maximum volume of air that can be breathed in after forced expiration
$\text{VC}=\text{ERV}+\text{TV}+\text{IRV}$

Vital Capacity (VC)


Final answer
$\left(A\right)\text{IRV}+\text{ERV}+\text{TV}$