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Anatomy and Physiology for Emergency Care Chapter 13 The Heart.

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Presentation on theme: "Anatomy and Physiology for Emergency Care Chapter 13 The Heart."— Presentation transcript:

1 Anatomy and Physiology for Emergency Care Chapter 13 The Heart

2 Objectives Describe the location and general features of the heart 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 Trace the flow of blood through the heart, identifying the major blood vessels, chambers, and heart valves Identify the layers of the heart wall 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 Describe the differences in the action potentials and twitch contractions of skeletal muscle fibers and cardiac muscle cells

3 Objectives Describe the components and functions of the conducting system of the heart 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 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 Define stroke volume and cardiac output, and describe the factors that influence these values

4 The Heart and the Circulatory System

5 The Anatomy and Organization of the Heart Surface Anatomy of the Heart Surface Anatomy of the Heart

6 The Anatomy and Organization of the Heart Internal Anatomy and Organization Internal Anatomy and Organization Structural Differences Between the Left and Right Ventricles Structural Differences Between the Left and Right Ventricles The Heart Valves The Heart Valves Atrioventricular valves Atrioventricular valves Semilunar valves Semilunar valves

7 Sectional Anatomy of the Heart

8 The Heart Valves

9 The Anatomy and Organization of the Heart The Heart Wall The Heart Wall Cardiac Muscle Cells Cardiac Muscle Cells Fibrous Skeleton Fibrous Skeleton

10 The Anatomy and Organization of the Heart Blood Supply to the Heart Blood Supply to the Heart

11 The Heartbeat Contractile Cells Contractile Cells The Conducting System The Conducting System Nodal Cells Nodal Cells Conducting Cells Conducting Cells

12 The Heartbeat The electrocardiogram The electrocardiogram

13 The Heartbeat The Cardiac Cycle The Cardiac Cycle Heart Sounds Heart Sounds

14 Heart Dynamics Factors Controlling Cardiac Output Factors Controlling Cardiac Output Blood Volume Reflexes Blood Volume Reflexes Autonomic Innervation Autonomic Innervation Autonomic Effects on the Heart Autonomic Effects on the Heart Autonomic Effects on Stroke Volume Autonomic Effects on Stroke Volume The effects of NE and E The effects of NE and E The effects of Ach The effects of Ach Coordination of Autonomic Activity Coordination of Autonomic Activity

15 Summary

16 Emergency Care Applications Chapter 13

17 Coronary Artery Disease

18 Acute Coronary Syndrome

19 Reperfusion Reperfusion Revascularization Revascularization

20 Defibrillation

21 Blunt Myocardial Injury Commotio Cordis (Myocardial Contusion) Commotio Cordis (Myocardial Contusion)

22 Summary


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