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Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of :

Option: 1

Residual Volume


Option: 2

Inspiratory Reserve Volume


Option: 3

Tidal Volume


Option: 4

Expiratory Reserve Volume


Answers (1)

best_answer

 

 

As we have learnt in

Residual Volume (RV): Volume of air remaining in the lungs even after a forcible expiration. This averages 1100 mL to 1200 mL. It prevents lungs from collapsing. 

Hence,t he correct answer is 'Residual Volume'

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Posted by

Ritika Kankaria

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