Q. About 1200 mL of air is always known to remain inside the human lungs. It is described as
A) Inspiratory reserve volume
B) Expiratory reserve volume
C) Residual volume
D) Tidal volume
Explanation
Residual Volume (RV) is the volume of air present in lungs even after a forcible expiration, averaging about 1200 mL.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.