EKG waves and intervals

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  1. P wave:
    the sequential activation (depolarization) of the right and left atria
  2. QRS complex:
    right and left ventricular depolarization (normally the ventricles are activated simultaneously)
  3. ST-T wave:
    ventricular repolarization
  4. PR interval:
    time interval from onset of atrial depolarization (P wave) to onset of ventricular depolarization (QRS complex)
  5. QRS duration:
    duration of ventricular muscle depolarization
  6. QT interval:
    duration of ventricular depolarization and repolarization
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34698
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EKG waves and intervals
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