Which of the following is responsible for the movement of O2 from the alveoli into the blood in the pulmonary capillaries?
High-Yield Explanation
Gases diffuse from the alveoli to the blood in the pulmonary capillaries or vice versa across the thin alveolocapillary membrane made up of the pulmonary epithelium, the capillary endothelium, and their fused basement membranes.