The point on a static pressure-volume curve (SPV)where the alveoli begin to open is referred to as which of the following?
A) Lower inflection point on the inflation limb
B) Upper inflection point on the inflation limb
C) Upper inflection point on the deflation limb
D) Lower inflection point on the deflation limb

Question

Quizplus · Accepted Answer

At the lower inflection point on the inflation limb,the slope of the line changes significantly.It originally was believed that this point represents the opening of most of the collapsed alveoli.However,it is the point at which the alveoli begin to open.Even at the upper inflection point on the inflation limb,the alveoli are still being recruited in some parts of the lungs.

The Point on a Static Pressure-Volume Curve (SPV)where the Alveoli