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in spite of the fact that the heart works non-stop unlike other muscles in the body |
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and thus it beats 70 times a minute, 100,000 times a day, and 40 million times a year |
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even though it has certain structures that make sure the blood flows one way only |
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since the heart pumps blood through its own muscular wall as well as pumping blood to the body |
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but it is simply a muscular pump that beats tirelessly to keep blood flowing |