What is the maximum volume of air a person can breathe out after a forced inspiration called?

If Expiratory Reserve Volume $(ERV)$ is $1100 \text{ ml}$, Residual Volume $(RV)$ is $1200 \text{ ml}$ and Tidal Volume $(TV)$ is $500 \text{ ml}$, then what is the Functional Residual Capacity $(FRC)$ (in $\text{ ml}$)?

Define vital capacity. What is its significance?

In a normal adult human, four respiratory capacities $(i-iv)$ and four respiratory volumes are given below. Which one of the following is the correct matching of two capacities and volumes?

Respiratory Capacity/Volume	Volume $(mL)$
$(i)$ Residual Volume $(RV)$	$2500$ $mL$
$(ii)$ Vital Capacity $(VC)$	$3500$ $mL$
$(iii)$ Inspiratory Reserve Volume $(IRV)$	$1200$ $mL$
$(iv)$ Inspiratory Capacity $(IC)$	$4500$ $mL$

$A =$ Gas exchange continues non-stop in the lungs even during exhalation.
$R =$ Lungs have residual air.

The volume of air that is present in the respiratory tract (from nose to the terminal bronchioles) but not involved in gaseous exchange is called . . . . . . .