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What is the role of the heart?

The heart is the body's central blood pumping station. Its role is to pump blood cells to the lungs to pick up oxygen, and then pump those blood cells all over the body, delivering oxygen. When the heart is relaxed, it fills up with blood. When it contracts, it pumps the blood back out and into the body.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.