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Breathing And Exchange Of Gases

Question

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

Residual Volume

Inspiratory Reserve Volume

Tidal Volume

Expiratory Reserve Volume

Solution

A.

Residual Volume

Volume of air present in lungs after forceful expiration as residual volume which prevents the collapsing of alveoli even after forceful expiration.

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