Diffusion of respiratory gases takes place at the membrane between the:
A) alveolar ducts and lymphatic capillaries.
B) type I alveolar cells and pulmonary capillaries.
C) type I and type II alveolar cells.
D) type II alveolar cells and pulmonary venules.

Question

Quizplus · Accepted Answer

Diffusion of respiratory gases takes place at the membrane between the type I alveolar cells and pulmonary capillaries. This membrane is thin and allows for efficient gas exchange between the lungs and the bloodstream.

Diffusion of Respiratory Gases Takes Place at the Membrane Between