Question

The quantity 1500 ml in the respiratory volumes
of a normal human adult refers to
(a) maximum air that can be breathed in and
breathed out
(b) residual volume
(c) expiratory reserve volume
(d) total lung capacity

Answer 1

The quantity 1500 ml in the respiratory volumes of a normal human adult refers to residual volume.

• Option (b) is correct.
• Residual volume is the amount of air remaining in the lungs after exhalation of the maximum volume of air forcefully.
• The maximum volume of air that gets remained in the lungs after inspiration is called the total lung capacity.  
• The residual volume equal to 1500 ml.

Answer 2

Answer is option "b"

Explanation:

• Residual air is the volume of air that outstanding parts in the lungs after the most convincing failure. It equivalents to 1500 mL.Residual air, for the most part, happens in alveoli.
• Greatest air that can be taken in and inhaled out is crucial limit (3500-4500 mL) while the air that can be lapsed well beyond the tidal air by most commanding termination is the expiratory hold volume (1200 mL).
• Hence, the right answer is option b "residual volume".