What are the exceptional arteries and veins and what is the roll of vena cava?
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the arteries are those who supply the blood to body parts and the veins are those who bring blood back to the heart for oxidation the role of vena cava is that they bring the oxidized blood to the heart again to make it oxidised
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The superior vena cava and inferior vena cava are veins that return deoxygenated blood from circulation in the body and empty it into the right atrium. The pulmonary artery carries deoxygenated blood from the right ventricle into the lungs for oxygenation.
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