What Is the Size of the Human Heart?


Quick Answer

The human heart is about the size of an adult's closed fist, but the size varies according to an individual's age, health and size. The heart weighs 7 to 15 ounces.

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What Is the Size of the Human Heart?
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Full Answer

The aorta, the large artery that carries blood away from the heart, is about the same diameter as a garden hose. A heart beats about 100,000 times each day, sending an individual's entire 6-quart blood supply through the body three times each minute. This means that an individual's blood travels about 12,000 miles a day. The amount of effort required to squeeze a tennis ball is about the same amount of force the heart uses when it pumps.

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