ball4lifezar ball4lifezar
  • 02-04-2019
  • Health
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The heart muscle rests always between beats

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kirstendiet119
kirstendiet119 kirstendiet119
  • 02-04-2019

The heart is the system's pump and the blood vessels are like the delivery routes and it is a muscle. The pumps are the beat. The heart is a muscle about the size of a fist and it is the muscle in the body that works the hardest. The statement that the heart muscle rests only between beats is true

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