Question

Respiratory diffusion membrane is made up of how many layers?

1) 3
2) 2
3) 4
4) 1​

Answer 1

Answer:

3

Explanation:

The diffusion membrane is made up of three major layers namely, the thin squamous epithelium of alveoli, the endothelium of alveolar capillaries and the basement substance (composed of a thin basement membrane supporting the squamous epithelium and the basement membrane surrounding the single layer

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Answer 2

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The diffusion membrane for gas exchange is made up of three major layers.

• Option 1) ✔️