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In lungs air is separated from the venou...

In lungs air is separated from the venous blood is by ,

A

Squamous epithelium + tunica externa of blood vessels

B

Squamous epithelium + endothelium of blood vessels

C

Transitional epithelium + tunica media of blood vessels

D

Columnar epithelium + 3 layered wall of the blood vessel·

Text Solution

Verified by Experts

The correct Answer is:
B
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