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The Circulatory System (The Heart (A muscular organ that pumps blood, The…
The Circulatory System
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Blood flows into the heart from a vein, goes into an atrium, then a ventricle, and out through an artery
How the heart functions
Blood passes from the right atrium to the right ventricle, then to the lungs
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Coronary Heart Disease
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The blood supply to part of the heart muscle is cut off, the heart cannot continue to contract and causes a heart attack
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Exercise
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Breathing volume increase because more oxygen is being breathed in, increase rate of gas exchange
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