In a cross section through an artery and vein running parallel in your leg, which would be the artery?
A) The vessel with more muscle tissue in the wall.
B) The vessel lined with endothelium.
C) The vessel with the largest interior diameter.
D) The vessel with valves to prevent backflow.
E) All of the above answers apply.

Question

Quizplus · Accepted Answer

Arteries have a thicker muscular layer than veins, allowing them to contract and expand to help regulate blood pressure and flow.

In a Cross Section Through an Artery and Vein Running