Which of the Following is the Smooth Inner Layer of the Blood

Question

Which of the following is the smooth inner layer of the blood vessels?
A) tunica media
B) tunica intima
C) endothelium
D) both B and C

Accepted Answer

The tunica intima is the innermost layer of a blood vessel, and the endothelium is a component of the tunica intima, providing a smooth lining.