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Cardiac Cycle

(Learning Activities)

Phases of the Cardiac Cycle
(Slider)

Cardiac cycle phase 1
Cardiac cycle phase 2
Cardiac cycle phase 3
Cardiac cycle phase 4
Cardiac cycle phase 5
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cycle-image-5.3
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Phases of the Cardiac Cycle
(Interactive Narrative)

Wigger’s Diagram and the Cardiac Cycle
(Interactive Narrative)

Sample Assessment and Evaluation
(Click to See Answers)

1. Atrial systole begins during which portion of ECG.

Midway through the P wave.