Ventricular depolarization is represented on the ECG by which component?

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Multiple Choice

Ventricular depolarization is represented on the ECG by which component?

Explanation:
Ventricular depolarization shows up on the ECG as the QRS complex. This rapid, sharp deflection reflects the ventricles’ electrical activation as the impulse travels quickly through the His-Purkinje system to cause contraction. The P wave corresponds to atrial depolarization, the T wave to ventricular repolarization, and the PR interval is the time from the start of atrial depolarization to the start of ventricular depolarization. The QRS complex is the distinct marker of ventricular depolarization, separating it from atrial activity and ventricular repolarization.

Ventricular depolarization shows up on the ECG as the QRS complex. This rapid, sharp deflection reflects the ventricles’ electrical activation as the impulse travels quickly through the His-Purkinje system to cause contraction. The P wave corresponds to atrial depolarization, the T wave to ventricular repolarization, and the PR interval is the time from the start of atrial depolarization to the start of ventricular depolarization. The QRS complex is the distinct marker of ventricular depolarization, separating it from atrial activity and ventricular repolarization.

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