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sinus node

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
sinus node


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Your heart's sinus node sends an electrical impulse to make your heart beat.
The action potential responsible for this rhythm arises from the sinus node and causes a P wave on the surface ECG that is normal in terms of both amplitude and vector.
Future studies are encouraged to compare biatrial and bicaval techniques concerning not only survival but also right ventricular function, atrial geometry, sinus node dysfunction, tricuspid and mitral regurgitation.
 
 
 
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