Differentiate between: Vital capacity and total lung capacity.

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Vital Capacity Total Lung Capacity
$(1)$ The maximum volume of air a person can breathe in after a forced expiration. $(1)$ The total volume of air accommodated in the lungs at the end of a forced inspiration.
$(2)$ It includes Inspiratory Reserve Volume $(IRV)$,Tidal Volume $(TV)$,and Expiratory Reserve Volume $(ERV)$. $(2)$ It includes all respiratory volumes: $IRV + TV + ERV + RV$ (Residual Volume).
$(3)$ Average volume is approximately $4000 \; ml$ to $4600 \; ml$. $(3)$ Average volume is approximately $5100 \; ml$ to $5800 \; ml$.

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Tidal air in mammalian lungs is

$A$ spirometer cannot be used to measure

$TV + IRV + ERV = $ ........

The total volume of air a person can inspire after a normal expiration is called .........

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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