Which of the following is correct about the transverse section of a vein, when compared with that of an
artery?
artery?
-
A.
The lumen of a vein is wider than that of an artery -
B.
The endothelium of the vein is thinner than that of an artery -
C.
There are more smooth muscles in a vein than in an artery -
D.
There are valves in veins but not in arteries.