Question

The volume of air that is inhaled forcefully after a normal inhalation is called__________________.

• A. Inspiratory reserve volume
• B. Expiratory reserve volume
• C. Residual volume
• D. Tidal volume

Answer 1

The correct option is A Inspiratory reserve volume

Inspiratory reserve volume (IRV) is the volume of air that is inhaled forcefully after a normal inhalation. Its value is in the range of 2500 ml to 3000 ml.
Expiratory reserve volume (ERV) is the volume of air that is exhaled forcefully after normal exhalation. Its value is in the range of 1000 ml to 1100 ml.
Residual volume (RV) is the volume of air that is left in the lungs and the dead space even after forceful exhalation. It is about 1100ml-1200ml.
Tidal volume (TV) is the volume of air taken in and out of the lungs during normal breathing. The value of the tidal volume is 500 ml.