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the resistance (pressure) in arteries tha must be overcome to empty blood from the venticle
a vaiation from the normal rhythm
a slower than normal heart rate
neutralizing of the polarity of a cardiac cell by an inflow of sodium ions. Deplarizaton results in contracton of the cardiac cell and renders it incapable of further contracion until repolarization occurs
Affectng the force of cardiac muscle conraction
the volume of blood in the ventricles at the end of diastole
contraction of the ventricles without acorresponding contraction of the atia. PVCs arise from an irritable focus or foci in the ventricles
Premaure Venticular Contraction (PVC)
the amount of blood ejected by the left ventricle with each beat
tachycardia ssociated with an iregularity in normal heart rhythm
a faster than normal heart rate
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