HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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arteries
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veins
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capillaries
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valves
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Detailed explanation-1: -Veins have valves which allow blood to flow only in one direction. Arteries do not have valves. Yet the blood flows in one direction only.
Detailed explanation-2: -Veins: Unlike arteries, veins don’t have to carry highly pressurized blood, but they do have to carry large volumes of deoxygenated blood back to your heart. Thin, less elastic walls help them handle high volumes and low pressure. Most veins have valves that open and close.
Detailed explanation-3: -Blood flow within your legs occurs mainly through the deep venous system. Femoral veins typically have between one to six vein valves, and popliteal veins often contain between zero to four valves. Valves in veins are bicuspid, meaning they have two flap-like structures that regulate blood flow.