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RELATED VIDEO.. https://youtu.be/4Ye40bPwB7k ( Heart function) https://youtu.be/sRRUmgB7m1U (Electrical signals) https://youtu.be/hWcDK668k0E (anatomy and physiology) The human heart is a muscular organ roughly the size of a fist, located slightly left of the center of the chest. It functions as a pump to circulate blood throughout the body ...
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