Cardiac Cycle
(Illustrations)
Background Info
The cardiac cycle is the sequence of events that occurs during a single heartbeat. During a cardiac cycle, both the atria and ventricles undergo periods of contraction (systole) and relaxation (diastole), which are coordinated by the heart’s pacemaker cells.
Cardiac Cycle
(Animation)
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Systolic and Diastolic Periods
(Animation)
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Cardiac Cycle Phases
(Animation)

Basic Wigger’s Diagram (Illustration)

This work is licensed under a Creative Commons Attribution 4.0 International License.
Basic Wigger’s Diagram (Illustration)

This work is licensed under a Creative Commons Attribution 4.0 International License.
Cardiac Cycle Phases
Unlabeled Images
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