Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of
(a) Residual Volume (RV)
(b) Inspiratory Reserve Volume (IRV)
(c) Tidal Volume (TV)
(d) Expiratory Reserve Volume (ERV)
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Correct Option (a) Residual Volume (RV)
Explanation:
In lungs, even after the most forceful expiration, some of the volume of arr remains. This volume is termed Residual Volume (RV). Due to this, lungs do not collapse even after the most forceful explanation, RV is about 1100 mL -1200 mL.
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