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Carry blood towards the heart (usually deoxygenated blood, except for the pulmonary vein) Allows diffusion of gases and nutrients from blood into the body cells Wall Thick, muscular Thinner Very ...
Carry blood towards the heart (usually deoxygenated blood, except for the pulmonary vein) Allows diffusion of gases and nutrients from blood into the body cells Wall Thick, muscular Thinner Very ...
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