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Biology · PYQ NEET UG 2020

हिन्दी

The QRS complex in a standard ECG represents:

  1. A
    Depolarisation of auricles
  2. B
    Depolarisation of ventricles
  3. C
    Repolarisation of ventricles
  4. D
    Repolarisation of auricles
View Answer & Solution

Correct answer · Option B

Depolarisation of ventricles

Explanation

In a standard ECG, the QRS complex represents the depolarization of the ventricles, which initiates ventricular contraction.

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