PATHOLOGY MCQ
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What are present in veins but absent in arteries?
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smooth elastic tissues
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muscular tissues
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valves
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None of the above
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Explanation:
Detailed explanation-1: -Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don’t require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity. Q.
Detailed explanation-2: -Arteries have no valves in their inner linings.
There is 1 question to complete.