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Lungs do not collapse between breaths an...

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because

A

Pressure I the lungs in higher than the atmospheric pressure

B

There is negative pressure insdie the lungs

C

There is a negative intrapleural pressure pulling at the lung walls

D

There is a positive intrapleural pressure

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The correct Answer is:
C
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