NEETBiologyBreathing and Exchange of GasesMCQ+4 / −1
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
- Athree is a negative pressure in the lungs
- Bthere is a negative intrapleural pressure pulling at the lung walls
- Cthere is a positive intrapleural pressure
- Dpressure in the lungs is higher than the atmospheric pressure.
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