Artery: Blood away from heart, Carry oxygenated blood, Thick wall of muscle + elastic tissue, Highest blood pressure, , Vein: Blood back to heart, Carry deoxygenated blood, Thinner wall of muscle + elastic, Valves stop backflow of blood, Lowest blood pressure, , Capillary: Link arteries to veins, Thin wall (one cell thick), Allow exchange / diffusion of substances , ,

Blood vessels

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