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Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because ofA. Residual Volume (RV)B. lnspiratory Reserve Volume (IRV)C. Tidal Volume (TV)D. Expiratory Reserve Volume (ERV) |
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Answer» Correct Answer - A In lungs, even after the most forceful expiration, some of the volume of air remains. This volume is termed Residual Volume (RV). Due to this, lungs do not collapse even after the most forceful expiration. RV is about 1100 mL to 1200 mL. |
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