What is heart?Structure of heart?
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The heart is made up of four chambers: two upper chambers known as the left atrium and right atrium and two lower chambers called the left and right ventricles. MORE FROM MICHIGAN: Sign up for our weekly newsletter. It is also made up of four valves: the tricuspid, pulmonary, mitral and aortic valves
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What is heart?Structure of heart?
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The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart. The heart then sends the blood to the lungs to pick up more oxygen.
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