what is inspiratory Reserve Volume? with example .plzz tell only Expert.

Dear student,
Please find below the answer:

Inspiratory reserve volume (IRV) may be defined as the maximum amount of air that can be inhaled by the lungs forcefully through determined effort after the process of normal inspiration. So, it is the extra amount of air that can be inhaled forcefully after normal inhalation.

Hope this clears your doubt.
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the volume of air that can be  inspired into the lungs after inspiration tidal volume is inspiratory reserve volume
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