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Chapter 20 THE CARDIOVASCULAR SYSTEM: THE HEART Chapter Synopsis This chapter presents the major anatomical and physiological features of the heart. The features include the location and surface features of the heart, structures and function of the heart, circulation of blood, the cardiac muscle, and the conduction system. The electrocardiogram is illustrated and discussed along with the cardiac cycle. Cardiac output is discussed in terms of stroke volume, heart rate, and regulation. The effect of exercise on the heart is explored. There is a discussion of the developmental anatomy of the heart. Disorders described in the chapter include coronary artery disease, myocardial ischemia and infarction, congenital heart defects, arrhythmias, and congestive heart failure. A medical terminology section concludes the study of the heart. Clinical applications include cardiopulmonary resuscitation, pericarditis and cardiac tamponade, rheumatic fever, help for failing hearts, reperfusion damage, heartvalve defects, and congestive heart failure. Chapter Outline and Objectives INTRODUCTION 1. State the reasons for continuous circulation of blood by the heart and the phenomenal amount that is pumped in a minute, day, and year.
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ANATOMY OF THE HEART Location of the Heart 2. Describe the location and orientation of the heart within the thorax and mediastinal cavity, and then give the anatomic dimensions. 3. Trace the outline of the heart on the surface of the chest. 4. Discuss why CPR is effective. Pericardium 5. Define the terminology and function of the pericardial serous membrane, then portray the physical structure and anatomic position around the heart. 6. Define and discuss pericarditis and cardiac tamponade. Layers of the Heart Wall 7. Examine the histological features of the three layers of the heart wall, with emphasis on intercellular connections 8. Distinguish between myocarditis and endocarditis. . Chambers of the Heart
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This note was uploaded on 06/06/2011 for the course BIO 115 taught by Professor Chen during the Fall '09 term at Moraine Valley Community College.

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