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final-review 3

cardio5Cardiac Cycle

QuestionAnswer
P wave: Atrial depolarization
PR interval: Time required for conduction from the SA node to AV node. The time between atrial and ventricular depolarization. This is normally .12 to .2 seconds.
QRS complex: Ventricular depolarization and atrial repolarization.
QT interval: Electrical systole that is measured by the time elapsed from the start of the Q wave to the end of the T wave. This is normally .32 to .40 seconds.
ST segment: Delay before repolarization of the ventricles; useful in assessing myocardial ischemia.
T wave: Ventricular repolarization
Created by: micah10
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