What is heart attack? Pulmonary vein is not bringing enough oxygen to the heart Aorta carrying oxygenated blood is blocked Heart stops pumping coronary arteries are blocked
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Describe how the heart, as a muscle, does its job of pumping blood. What happens if the cardiac muscle itself does not get enough blood? Using your knowledge of cardiac circulation, explain the flow of blood through the heart. What would cause Aunt May's weakness and shortness of breath during her sudden attack?
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