Sinus Node Rhythms and Arrhythmias: Difference between revisions
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[[Image:Normaal ecg.jpg|thumb| An example of a normal ECG.]] | [[Image:Normaal ecg.jpg|thumb| An example of a normal ECG.]] | ||
The normal heart rhythm is ''sinus rhythm''. That means that the rhythm has its origin in the sinus node, the heart's fastest physiological impulse generator. | The normal heart rhythm is ''sinus rhythm''. That means that the rhythm has its origin in the sinus node, the heart's fastest physiological impulse generator. | ||
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The sinus node (SA) is located in the upper part of the wall of the right atrium. When the sinus node generates an electrical impulse, first the cells of the right atrium depolarise, then the cells of the left atrium, the AV (atrioventricular) node follows and at last the ventricles are stimulated via the His bundle. | The sinus node (SA) is located in the upper part of the wall of the right atrium. When the sinus node generates an electrical impulse, first the cells of the right atrium depolarise, then the cells of the left atrium, the AV (atrioventricular) node follows and at last the ventricles are stimulated via the His bundle. | ||