Biology · Human Physiology
In an Electrocardiogram (ECG), what does the QRS complex represent?
- 1Atrial repolarization
- 2Ventricular repolarization (relaxation)
- 3Atrial depolarization (contraction)
- 4Ventricular depolarization (contraction)✓
Correct answer
Ventricular depolarization (contraction)
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