Normal respiratory compliance is ?
The lungs and thoracic cage are both elastic structures. Hence they display a constant relationship between distending pressure and change in volume. The change in volume per unit change in pressure is called "compliance". The total compliance of both lungs together in the normal adult human being is about 0.2 L/cm water. That is, every time the transpulmonary pressure increases by 1 centimeter of water, the lung volume will expand 0.2 L (200 ml). Compliance is a measure of distensibility. Ref: Guyton 12th Ed.
200 ml/cm water
50 ml/cm water
100 ml/cm water
150 ml/cm water
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