Heart Rates of Different Animals

Heart Rates of Different Animals

An average heart pumps 5 liters every minute, and 7,200 liters every day. A lot happens inside your body each time your heart beats.


Key Facts In This Video

  • 1

    The heart pumps blood in two phases: relaxation and contraction. (0:08)

  • 2

    Valves help the heart to avoid overfilling with blood. (0:38)

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