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The QRS complex in a standard ECG represents: [NEET 2020]

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The QRS complex in a standard ECG represents: [NEET 2020]
arepolarisation of auricles.
bdepolarisation of auricles.
cdepolarisation of ventricles.
drepolarisation of ventricles.
✓ Correct answer: c) depolarisation of ventricles.
ExplanationThe QRS complex represents the depolarisation of the ventricles, which initiates the ventricular contraction.The contraction starts shortly after Q and marks the beginning of the systole.
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