You must have heart to succeed in Sonography

Basic Electrocardiography, depolarization is the electrical activation of the myocardium (the muscular tissue of the hear):


  • P wave: ECG deflection representing atrial depolarization. Atrial re-polarization occurs during ventricular depolarization and is obscured.
  • QRS wave: ECG deflection representing ventricular depolarization.
  • T wave: ECG defection representing ventricular re-polarization.

Just for fun, some “hearts” and crafts:



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