Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Appendix ACardiac Anatomy and Physiology

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Layers of Heart Wall

Endocardium: contains branches of heart’s electrical conduction system

Myocardium: made up of layers and bands of cardiac muscle fibers

Epicardium: single layer of cells supported by connective tissues; contains nerves to heart and coronary blood vessels

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Internal Anatomy of the Heart

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Walls of the Heart

Endocardium Myocardium Pericardium

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Walls of the Heart

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Heart Valves

A-V Valves Tricuspid Mitral (Bicuspid)

Semilunar Valves Pulmonic Aortic

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Heart Valves

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Blood Flow through the Body

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Coronary Circulation

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Cardiac Cycle

Cardiac cycle Systolic Phase: Contraction Diastolic Phase: Relaxation

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Systole and Diastole

Gail Walraven, Basic Arrhythmias, Sixth Edition©2006 by Pearson Education, Inc., Upper Saddle River, NJ

Surfaces of the Heart