Question

Arrange the following terms based on their volumes in an ascending order

a.Tidal Volume ($TV$)

b.Residual Volume ($RV$)

c.Inspiratory Reserve Volume ($IRV$)

d.Expiratory Capacity ($EC$)

Answer 1

Tidal Volume

It is the volume of air inspired or expired during normal breathing by person. It is approximately $500mL$ in a healthy adult.

Residual volume

The volume of air that remains in the lungs even after the forceful expiration is known as residual volume. It is around $1100mL$ to $1200mL$.

Inspiratory Reserve Volume ($IRV$)

After inspiring the tidal volume, the extra volume of air a person can inspire by forceful inspiration is known as inspiratory reserve volume ($IRV$). The volume of $IRV$ is around $2500$ to $3000mL$.

Expiratory Capacity ($EC$):

After normal inspiration, the total volume of air that can be expired by a person is known as expiratory capacity ($EC$). The volume of expiratory capacity is about $1500$ to $1600mL$.

Final answer:

$TV<RV<EC<IRV$