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1 mark

The QRS complex in a standard ECG represents:

  1. A
    Repolarisation of auricles
  2. B
    Depolarisation of auricles
  3. C
    Depolarisation of ventricles
  4. D
    Repolarisation of ventricles

Solution & Step-by-step Explanation

In a standard ECG:P-wave: Depolarisation of the atria (auricles).QRS complex: Depolarisation of the ventricles, which initiates ventricular contraction.T-wave: Repolarisation of the ventricles.

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The QRS complex in a standard ECG represents:
A
Repolarisation of auricles
B
Depolarisation of auricles
C
Depolarisation of ventricles
D
Repolarisation of ventricles

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