QRS complex is due to -: (A) Ventricular repolarization, (B) Atrial depolarization, (C) Conduction through AV node, (D) Ventricular depolarization
Answer is D. Ans. is "d" i.e., Ventricular depolarization Event of ECGCauseP-waveAtrial depolarizationQRS complexVentricular depolarizationTwaveVentricular repolarizationPR intervalRepresents time taken by impulse to travel from SA node to ventricle (Atrial depolarization and AV conduction)QT intervalDuration of full ventricular contraction (Ventricular depolarization + Repolarization)