The circulatory system consists of veins and arteries. Arteries are blood vessels that bring oxygenated blood full of nutrients from the heart to the rest of the body. Veins are vessels that transport blood without oxygen and nutrients back to the heart. In healthy leg veins, one-way valves allow blood to move only in one direction: towards the heart. https://www.usaveinclinics.com/blog/what-are-vein-valves/
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Function Of Valves In Veins

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The circulatory system consists of veins and arteries. Arteries are blood vessels that bring oxygenated blood full of nutrients from the heart to the rest of the body. Veins are vessels that transport blood without oxygen and nutrients back to the heart. In healthy leg veins, one-way valves allow blood to move only in one direction: towards the heart.
https://www.usaveinclinics.com/blog/what-are-vein-valves/

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