Download Anatomy and Physiology for Emergency Care

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

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
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
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
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

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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