Why are aneurisms, or a sac-like outpocketing of a vessel wall, much more common in arteries than veins?
A) Pressure against the walls of arteries is higher than the pressure against the walls of veins.
B) Arteries have a thicker tunica media, making them more vulnerable than veins.
C) Arteries have a thinner tunica externa than veins.
D) Arteries have more vasa vasorum than veins, making the tunica externa weaker in arteries.
Correct Answer:
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