Human heart. Computer illustration of a healthy human heart, the hollow organ that pumps blood around the body. The vena cava (green, upper & lower left) brings deoxygenated blood to the heart, while the aortic arch (orange, upper centre) transports oxygenated blood back to the body. The pulmonary artery (green, upper right) carries blood to the lungs. The coronary arteries (yellow) supply the heart muscle with oxygen.
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