Define the following:(a) Inspiratory Reserve volume(b) Expiratory Rese

1.	Define the following:(a) Inspiratory Reserve volume(b) Expiratory Reserve volume(c) Total lung capacity(d) Residual volume(e) Functional residual capacity
Answer» (a) Inspiratory Reserve volume (IRV): Additional volume of air, a person can inspire by a forcible inspiration. (b) Expiratory Reserve volume (ERV): Additional volume of air, a person can expire by a forcible expiration. (c) Total lung capacity: Total volume of air accommodated in the lungs at the end of a forced inspiration. This includes RV, ERV, TV and IRV. (d) Residual Volume (RV): Volume of air remaining in the lungs even after a forcible expiration. (e) Functional residual capacity (FRC): Volume of air that will remain in the lungs after a normal expiration. This includes ERV + RV.

Define the following:(a) Inspiratory Reserve volume(b) Expiratory Reserve volume(c) Total lung capacity(d) Residual volume(e) Functional residual capacity

Answer»

(a) Inspiratory Reserve volume (IRV): Additional volume of air, a person can inspire by a forcible inspiration.

(b) Expiratory Reserve volume (ERV): Additional volume of air, a person can expire by a forcible expiration.

(c) Total lung capacity: Total volume of air accommodated in the lungs at the end of a forced inspiration. This includes RV, ERV, TV and IRV.

(d) Residual Volume (RV): Volume of air remaining in the lungs even after a forcible expiration.

(e) Functional residual capacity (FRC): Volume of air that will remain in the lungs after a normal expiration. This includes ERV + RV.