Translation of PQRST wave

  • P wave shows atrial depolarisation as the atria contract
  • QRS complex shows ventricular depolarisation as the ventricles contract and electrical impulse is conducted from the sinoatrial node, down the bundle of His, into the right and left bundle branches and Purkinje fibres.
  • T wave is the repolarisation of the ventricles as the ventricles relax.