function of tough fibrous coat of veins in single sentence
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function of tough fibrous coat of veins in single sentence
Blood flow with comparatively lesser pressure in veins and so chances of back flow of blood is high. Valves are necessary for maintain unidirectional blood flow. ... The outer coat of the vein is tough and fibrous in nature
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Fiber composition also differs; veins contain fewer elastic fibers and function to control caliber of the arteries, a key step in maintaining blood pressure.
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