Arteries/veins: Every organ needs a supply line (artery) and discharge (vein). Think of your faucet and drain. The coronary arteries supply the heart muscle with oxygen and energy, the veins carry off the metabolic waste.
Answered 9/29/2020
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Circulate blood: Coronary arteries circulate blood to heart muscle and the veins drain the blood from the heart muscle.
Answered 9/29/2020
5.5k views
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