In the upright position,which portion of the right lung would have the highest ventilation-perfusion ratio?
A) apex of upper lobe
B) lower lobe
C) middle lobe
D) hilum

Question

Quizplus · Accepted Answer

The apex of the upper lobe of the lung is the highest portion and receives the largest volume of air. Due to gravity, there is less blood flow to this area, resulting in a higher ventilation-perfusion ratio.

In the Upright Position,which Portion of the Right Lung Would