HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The protect the blood inside.
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To prevent coronary heart disease,
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So substance like oxygen can’t move through the walls.
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To withstand the large amount of pressure in the blood they carry.
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Detailed explanation-1: -Since the blood pumped from the heart into the arteries flows at higher pressure than the blood in veins, hence arteries need to have thicker walls or else the high blood pressure might cause them to burst.
Detailed explanation-2: -An artery is a blood vessel that conducts blood away from the heart. All arteries have relatively thick walls that can withstand the high pressure of blood ejected from the heart.
Detailed explanation-3: -The thick walls of the arteries prevent them from bursting due to the high blood pressure and the changes in the pressure during the cardiac cycle. Hence, the thick walls are a structural necessity. The valves that are generally found in the veins are generally to prevent the backflow of the blood.