Which respiratory volume represents the volume of air remaining in the lungs even after a forcible expiration?
Tidal volume
Inspiratory reserve volume
Expiratory reserve volume
Residual volume
Residual volume (RV) represents the volume of air remaining in the lungs even after a forcible expiration. This volume ranges from 1100 mL to 1200 mL.
Option 4 is the correct answer.