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Heart Powerpoint
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3. The four chambers work in harmony to create the cadiac cycle which control the systole or contraction and diastole or relaxation. A heartbeat is a two-part pumping action that takes a second and involves the opening and closing of the tricuspid and mitral valves. A person’s heart may have beat more than 3.5 billion times, and on a daily bases it can beat 1000,000 times, pumping 2,000 gallons of blood.
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6. The heart weighs between 7 and 15 ounces and a little bigger than the size of a clinch fist. The main disease of the heart is coronary artery disease which refers to areas of partial or complete blockage of coronary circulation, but we can sustain life by taking care of our entire body. Lets start with our hearts .