NEET 2020

NEET 2020 Zoology question on Body Fluids and Circulation

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
Show answer

Correct option: B

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