Ques. In lungs, the air is separated from the venous blood through
A. transitional epithelium + tunica externa of blood vessel
B. squamous epithelium + endothelium of blood vessel
C. squamous epithelium + tunica media of blood vessel
D. none of the above.
Answer:B
Ques. In lungs, the air is separated from the venous blood through
A. transitional epithelium + tunica externa of blood vessel B. squamous epithelium + endothelium of blood vessel C. squamous epithelium + tunica media of blood vessel D. none of the above.