18 HUMAN ANATOMY Power Point Lecture Slides prepared

18 HUMAN ANATOMY Power. Point® Lecture Slides prepared by Leslie Hendon, University of Alabama, Birmingham PART 4 The Heart fifth edition MARIEB | MALLATT | WILHELM Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Blood Supply to the Heart § Functional blood supply § Coronary arteries § Arise from the aorta § Located in the coronary sulcus § Main branches § Left and right coronary arteries Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Blood Supply to the Heart Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 18. 16

Disorders of the Heart § Coronary artery disease § Atherosclerosis – fatty deposits § Angina pectoris – chest pain § Myocardial infarction – blocked coronary artery § Heart attack § Silent ischemia – no pain or warning Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Disorders of the Heart § Heart failure § Progressive weakening of the heart § Cannot meet the body’s demands for oxygenated blood § Congestive heart failure (CHF) § Cor pulmonale § Heart enlarges § Pumping efficiency declines § Enlargement and potential failure of right ventricle Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings