The volume of air left in the lungs after a forceful expiration is called
A
expiratory reserve volume
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B
inspiratory reserve volume
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C
residual volume
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D
functional residual capacity
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Solution
The correct option is C residual volume The volume of air left in the lungs after a forceful expiration is called residual volume (RV). Its value is in the range 1100ml-1200ml
Expiratory reserve volume (ERV) is the volume of air that is exhaled forcefully after normal exhalation. Its value is in the range of 1000 ml to 1100 ml.
Inspiratory reserve volume (IRV) is the volume of air that is inhaled forcefully after a normal inhalation. Its value is in the range of 2500 ml to 3000 ml.
Functional residual capacity (FRC) is the volume of air that remains in the lungs after a normal expiration. It is the sum of expiratory reserve volume and residual volume.