NEETZoologyBreathing and Exchange of Gases
Are the Expiratory Reserve Volume (ERV) and Residual Volume (RV) the same in healthy adults?
Options
- AYes
- BNo
- CCannot be determined
- DDepends on the individual
Correct answer
B. No
Step-by-step solution
The Expiratory Reserve Volume (ERV) and Residual Volume (RV) are different in healthy adults. : Expiratory Reserve Volume (ERV): Additional volume of air, a person can expire by a forcible expiration. This averages 1000 mL to 1100 mL . Residual Volume (RV): Volume of air remaining in the lungs even after a forcible expiration. This averages 1100 mL to 1200 mL. By adding up a few respiratory volumes described above, one can derive various pulmonary capacities, which can be used in clinical diagnosis. Inspiratory Cap