write function of heart?
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The heart is a muscular organ situated in the chest just behind and slightly toward the left of the breastbone. It roughly measures the size of a closed fist. The heart works all the time, pumping blood through the network of blood vessels called the arteries and veins. The heart and its blood vessels are known as the cardiovascular system
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The four main functions of the heart are:
1. Pumping oxygenated blood to the other body parts. 2. Pumping hormones and other vital substances to different parts of the body.
3. Receiving deoxygenated blood and carrying metabolic waste products from the body and pumping it to the lungs for oxygenation.
4. Maintaining blood pressure.
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