The function of the lining of an artery is to:
A)help maintain blood pressure (BP)by raising it
B)prevent abnormal clotting
C)help maintain BP by lowering it
D)keep the blood moving

Question

Quizplus · Accepted Answer

The lining of an artery, also known as the endothelium, prevents abnormal clotting by producing substances such as nitric oxide and prostacyclin that prevent platelets from sticking to the artery walls and forming clots. A and C are incorrect as the function of the endothelium is to regulate blood pressure, not raise or lower it. D is incorrect as the contraction and relaxation of smooth muscle in the artery wall is responsible for moving the blood.

The Function of the Lining of an Artery Is To