Through what two cell layers must gases diffuse to go from the alveoli to the plasma

1)Alveolar epithelial cells

2)Capillary endothelial cells

Explanation:

Alveoli are tiny air sacs found in the lungs. Gases such as Oxygen and carbon dioxide move from alveoli to plasma through the alveolar and capillary walls.

These layers are referred to as the alveolar-capillary (respiratory) membrane.