cardiac impulse meaning

  "cardiac impulse" in a sentence
  • [Medicine]
    n : the wave of cardiac excitation passing from the sinoatrial node to the atrioventricular node and along the bundle of His and initiating the cardiac cycle; broadly : HEARTBEAT


  1. The most common cause of sustained rhythm disturbances is a condition called atrial fibrillation, in which the electrical cardiac impulse in the upper chamber of the heart become unstable, resulting in irregular and quivering contractions.

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