____ is the volume of air we breathe in and out during normal breathing.

Inspiratory reserve volume plus expiratory reserve volume

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Total lung capacity minus residual volume

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Inspiratory reserve volume plus tidal volume

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Total lung capacity minus expiratory reserve volume

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Solution

The correct option is B
Total lung capacity minus residual volume

Tidal volume is the volume of air we breathe in and out during normal breathing. Vital capacity is the maximum volume of air a person can inspire after a forced expiration or the maximum volume of air a person can breathe out after a forced inspiration. It is calculated as the sum total of inspiratory reserve volume (IRV), tidal volume (TV), and expiratory reserve volume (ERV), i.e., VC = IRV+TV+ERV.

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Similar questions

I	Inspiratory Capacity (IC)
II	Functional Residual Capacity (FRC)
III	Vital Capacity (VC)
IV	Inspiratory Reserve Volume (IRV)
V	Residual Volume RV)
VI	Expiratory Reserve Volume (ERV)
VII	Tidal Volume (TV)

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