Question

what are the features of the alveolar wall that make it a excellent respiratory surface

Answer 1

alveolar wall features

1) the wall of alveolar has large surface area of large exchange of gases

2) the wall is moist enough for oxygen to dissolve

3) they have thin lining to allow oxygen to diffuse into blood

4) they are surrounded by small blood capillaries to allow easy transport of oxygen into blood

5) oxygen and carbon-di-oxide diffuse from blood to air sacs simultaneously

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