The diffusion membrane, through which gaseous exchange occur in the lungs comprises of:

Question

The diffusion membrane, through which gaseous exchange occur in the lungs comprises of: (A) Alveolar epithelium capillary endothelium. (B) Alveolar epithelium capillary endothelium and the basement membrane between them. (C) Only alveolar epithelium. (D) Alveolar epithelium and basement membrane of alveoli.

Tardigrade Admin · Accepted Answer

Correct answer is (b) Alveolar epithelium capillary endothelium and the basement membrane between them.

Q. The diffusion membrane, through which gaseous exchange occur in the lungs comprises of:

Alveolar epithelium & capillary endothelium.

Alveolar epithelium & capillary endothelium and the basement membrane between them.

Only alveolar epithelium.

Alveolar epithelium and basement membrane of alveoli.

Correct answer is (b) Alveolar epithelium & capillary endothelium and the basement membrane between them.