Vital capacity is

Q. Distinguish between

(a) IRV and ERV
(b) Vital capacity and total lung capacity

Q. 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)

Q. From the following relationships between respiratory volume and capacities and mark the correct answer.

i. Inspiratory capacity $\left(IC\right)=$ Tidal Volume + Residual Volume
ii. Vital Capacity $\left(VC\right)=$ Tidal Volume $\left(TV\right)+$ Inspiratory Reserve Volume $\left(IRV\right)+$ Expiratory Reserve Volume $\left(ERV\right)$
iii. Residual Volume $\left(RV\right)=$ Vital Capacity $\left(VC\right)–$ Inspiratory Reserve Volume $\left(IRV\right)$
iv. Tidal Volume $\left(TV\right)=$ Inspiratory Capacity $\left(IC\right)–$ Inspiratory Reserve Volume $\left(IRV\right)$

Q.

Distinguish between:

(a) IRV and ERV

(b) Inspiratory capacity and Expiratory capacity

(c) Vital capacity and Total lung capacity

Q.

Complete the following blanks, regarding lung volumes and capacities.
i. First lung capacity (FRC)$⟶$ ERV+RV= ________.
ii. Inspiratory capacity (IC)$⟶$ TV+IRV= ________.
iii. Vital capacity (VC)$⟶$ IC+ERV= ________.
iv. Total lung capacity $⟶$ RV+VC= ________.