Anatomy and Physiology for Emergency Care Chapter 13 The Heart
Objectives Describe the location and general features of the heart Trace the flow of blood through the heart, identifying the major blood vessels, chambers, and heart valves Identify the layers of the heart wall Describe the differences in the action potentials and twitch contractions of skeletal muscle fibers and cardiac muscle cells
Objectives Describe the components and functions of the conducting system of the heart Explain the events of the cardiac cycle, and relate the heart sounds to specific events in the cycle Define stroke volume and cardiac output, and describe the factors that influence these values
The Heart and the Circulatory System
The Anatomy and Organization of the Heart Surface Anatomy of the Heart
The Anatomy and Organization of the Heart Internal Anatomy and Organization Structural Differences Between the Left and Right Ventricles The Heart Valves Atrioventricular valves Semilunar valves
Sectional Anatomy of the Heart
The Heart Valves
The Anatomy and Organization of the Heart The Heart Wall Cardiac Muscle Cells Fibrous Skeleton
The Anatomy and Organization of the Heart Blood Supply to the Heart
The Heartbeat Contractile Cells The Conducting System Nodal Cells Conducting Cells
The Heartbeat The electrocardiogram
The Heartbeat The Cardiac Cycle Heart Sounds
Heart Dynamics Factors Controlling Cardiac Output Blood Volume Reflexes Autonomic Innervation Autonomic Effects on the Heart Autonomic Effects on Stroke Volume The effects of NE and E The effects of Ach Coordination of Autonomic Activity
Summary
Emergency Care Applications Chapter 13
Coronary Artery Disease
Acute Coronary Syndrome
Acute Coronary Syndrome Reperfusion Revascularization
Defibrillation
Blunt Myocardial Injury Commotio Cordis (Myocardial Contusion)
Summary