HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To stretch and recoil to pump the blood through
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To increase surface area for exchange of materials
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To withstand high pressure
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To prevent backflow of blood
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Detailed explanation-1: -The valves open, allowing the blood to flow, and close, stopping the blood from flowing backwards. After running through this network of veins, blood reaches the heart and travels to the lungs, which supply it with oxygen and allow it to expel carbon dioxide and other waste.
Detailed explanation-2: -Thus, valves help the return of blood to the heart-by opening when the blood flows toward the heart and closing when blood might flow backward. The deep veins play a significant role in pushing blood toward the heart. The one-way valves in deep veins prevent blood from flowing backward.
Detailed explanation-3: -Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The tricuspid valve separates the right atrium from the right ventricle whereas the bicuspid valve separates the left atrium and left ventricle.