A vein differs from an artery in having:
A) Strong muscular walls
B) Narrow lumen
C) Valves control direction of blood flow opposite to heart
D) Valves control direction of blood flow towards heart
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D) Valves control direction of blood flow towards heart is the correct answer.
A vein differs from an artery in having Valves control direction of blood flow towards heart.
Normally, the Arteries carries the blood from the heart to the rest of the body and veins carry blood from the rest of the body back to the heart.
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