Inspiratory capacity is the sum of __________________ and ____________________
A
tidal volume and inspiratory reserve volume
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B
residual volume and expiratory reserve volume
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C
tidal volume and expiratory reserve volume
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D
residual volume and inspiratory reserve volume
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Solution
The correct option is A tidal volume and inspiratory reserve volume Inspiratory capacity (IC) is the maximum volume of air that can be breathed in after normal expiration. It is the sum of tidal volume and inspiratory reserve volume.
Tidal volume (TV) is the volume of air taken in and out of the lungs during normal breathing.
Inspiratory reserve volume (IRV) is the volume of air that can be inhaled forcefully after a normal inhalation