The diffusion membrane is made up of which la | vedclass

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(A) The diffusion membrane is made up of three major layers:$(1)$ The thin squamous epithelium of the alveoli.$(2)$ The endothelium of the alveolar ca

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Squamous epithelium of alveoli,endothelium of alveolar capillaries,and basement membrane.

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(A) The diffusion membrane is made up of three major layers:$(1)$ The thin squamous epithelium of the alveoli.$(2)$ The endothelium of the alveolar capillaries.$(3)$ The basement substance (basement membrane) in between them.These three layers together have a total thickness of less than a millimeter,which facilitates the rapid diffusion of oxygen and carbon dioxide.

The diffusion membrane is made up of which layers?

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