Question

following a normal inspiration, the volume of additional air that enters the lungs during forced maximal inspiration is called the

multiple choice
expiratory reserve volume
tidal volume
inspiratory reserve volume
vital capacity

Explanation:

• Expiratory reserve volume: It is the additional air that can be forcefully exhaled after a normal exhalation, not related to forced inspiration.
• Tidal volume: It is the volume of air that is inhaled or exhaled during normal, quiet breathing.
• Inspiratory reserve volume: By definition, it is the volume of additional air that can be forcefully inhaled after a normal inspiration.
• Vital capacity: It is the sum of tidal volume, inspiratory reserve volume, and expiratory reserve volume.

Answer:

inspiratory reserve volume