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Arteries have thick, elastic walls composed of smooth muscle and connective tissue, allowing them to withstand and regulate the high pressure of blood pumped from the heart. The elasticity helps maintain blood pressure during diastole, while the muscular layer enables vasoconstriction and vasodilation, adjusting blood flow as needed. Their narrow lumen also aids in maintaining pressure, ensuring efficient blood transport throughout the body. This structural design is essential for facilitating the rapid delivery of oxygenated blood to tissues.

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4mo ago

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