From the following relationship between respiration volumes and capacities, mark the correct option.
(i) Inspiratory Capacity (IC) `=` Tidal Volume + Residual Volume
(ii) Vital Capacity (VC) = Tidal Volume (TV) + Inspiratory Reserve Volume (IRV) + Expiratory Reserve Volume (ERV)
(iii) Residual Volume (RV) = Vital Capacity (VC) - Inspiratory Reserve Volume (IRV)
(iv) Tidal Volume (TV) = Inspiratory Capacity (IC) - Inspiratory Reserve Volume (IRV)

Options

A. (i) Incorrect, (ii) Incorrect, (iii) Incorrect, (iv) Correct
B. (i) Incorrcet, (ii) Correct, (iii) Incorrect, (iv) Correct
C. (i) Correct, (ii) Correct, (iii) Incorrect, (iv) Correct
D. (i) Corrcet, (ii) Incorrect, (iii) Corrcet, (iv) Incorrect

Answer

B

Explanation

Inspiratory capacity (IC)= Tidal Volume + inspiratory reserve volume
Vital Capacity (VC) = Tidal Volume (TV) + Inspiratory Reserve Volume (IRV) + Expiratory Reserve Volume (ERV)
Residual Volume (RV) = ERV + RV
Tidal Volume (TV) = Inspiratory Capacity (IC) - Inspiratory Reserve Volume (IRV)