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CIRCULATION (diameters (capillaries (3-4um), veins (1-1,5 cm), arteries (0…
CIRCULATION
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veins
any of the tubes forming part of the blood circulation system of the body, carrying mainly oxygen-depleted blood towards the heart.
arteries
Any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from the heart to all parts of the body.
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