The distribution of inspired air and pulmonary blood flow becomes less homogeneous with increasing age.This age-related change contributes MOST to which of the following clinical manifestations?

Question

Quizplus · Accepted Answer

The alveolar walls become thinner and the capillary bed incurs considerable loss,with an increase in ventilation-perfusion mismatching.The distribution of inspired air and pulmonary blood flow becomes less homogeneous with age.Diffusing capacity is therefore reduced and the physiological space is increased.

The Distribution of Inspired Air and Pulmonary Blood Flow Becomes