How many layers are present in the diffusion | vedclass

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(B) The diffusion membrane is composed of three major layers: the thin squamous epithelium of the alveoli,the endothelium of the alveolar capillaries,

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(B) The diffusion membrane is composed of three major layers: the thin squamous epithelium of the alveoli,the endothelium of the alveolar capillaries,and the basement membrane (basement substance) located between them.These three layers facilitate the efficient exchange of gases.Despite having three layers,the total thickness of the diffusion membrane is much less than a millimeter,which is highly favorable for the diffusion of $O_{2}$ from the alveoli to the tissues and $CO_{2}$ from the tissues to the alveoli.

Gas	Alveolar Air $(X/A)$	Atmospheric Air $(Y/B)$
$pO_{2}$	$X$	$Y$
$pCO_{2}$	$A$	$B$

How many layers are present in the diffusion membrane of the alveolus capillary?

Similar Questions

The partial pressure of $O_{2}$ and $CO_{2}$ in atmospheric air as compared to those in alveolar air is:

Gas Alveolar Air $(X/A)$ Atmospheric Air $(Y/B)$

$pO_{2}$ $X$ $Y$

$pCO_{2}$ $A$ $B$

Partial pressure of a gas is the pressure contributed by

The diffusion membrane is made up of:

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