Distinguish between (Any two):
$(a)$ $IRV$ and $ERV$
$(b)$ Inspiratory capacity and Expiratory capacity
$(c)$ Vital capacity and Total lung capacity

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(N/A)
$a$. Inspiratory reserve volume $(IRV)$$a$. Expiratory reserve volume $(ERV)$
$1$. It is the additional volume of air that can be inspired by a forcible inspiration.$1$. It is the additional volume of air that can be expired by a forcible expiration.
$2$. It is about $2500-3500 \, mL$.$2$. It is about $1000-1100 \, mL$.

$b$. Inspiratory capacity $(IC)$$b$. Expiratory capacity $(EC)$
$1$. Total volume of air a person can inspire after a normal expiration.$1$. Total volume of air a person can expire after a normal inspiration.
$2$. $IC = TV + IRV$$2$. $EC = TV + ERV$

$c$. Vital capacity $(VC)$$c$. Total lung capacity $(TLC)$
$1$. Maximum volume of air a person can breathe in after a forced expiration.$1$. Total volume of air accommodated in the lungs at the end of a forced inspiration.
$2$. Includes $ERV + TV + IRV$.$2$. Includes $RV + ERV + TV + IRV$.

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Similar Questions

Match List-$I$ with List-$II$:
List-$I$ (Respiratory Volume) List-$II$ (Capacity in mL)
$A$. $ERV$ (Expiratory Reserve Volume) $I$. $2500-3000 \text{ mL}$
$B$. $RV$ (Residual Volume) $II$. $500 \text{ mL}$
$C$. $IRV$ (Inspiratory Reserve Volume) $III$. $1000-1100 \text{ mL}$
$D$. $TV$ (Tidal Volume) $IV$. $1100-1200 \text{ mL}$

Choose the correct answer from the options given below:

Tidal Volume and Expiratory Reserve Volume of an athlete are $500 \; mL$ and $1000 \; mL$ respectively. What will be his Expiratory Capacity if the Residual Volume is $1200 \; mL$? ........$mL$

$A$ spirometer cannot be used to measure

Tidal volume is

Tidal air in mammalian lungs is

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