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Unformatted text preview: Closing of semilunar valves Auscultation Circulatory routes Systemic circulation Pulmonary circulation Coronary circulation* Myocardial infarction Heart attack Myocardial necrosis Thrombus formation in coronary artery Myocardial infarction Heart attack Leading cause of mortality/morbidity in the US 500,000-700,000 deaths per year in US 1,300,000 non fatal reports 40-70 years: males predominantly Over 70 years: both sexes equal Myocardial infarction Strategies for preventing/treating MI Exercise Good diet Quit smoking Surgery Coronary bypass Angioplasty Coronary bypass Angioplasty Coronary artery stents Conduction system of the heart The heartbeat originates in and is conducted through the heart without extrinsic stimulation. 11 1 2 12 13 14 15 16 17 18 19 20...
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- Summer '07