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Transcript
Electrical System of the heart Taelar Shelton, MS, ATC, AT/L Systole vs Diastole Systole: contraction Diastole: relaxation Events in cardiac cycle Atrial systole with ventricular diastole Blood flows from atria to ventricles “Lubb” Ventricular systole with atrial diastole Blood flows from ventricles to arteries “Dubb” Atrial and ventricular diastole Electrical System Electrical Impulse SA node: pacemaker, starts the electrical impulse Located in the right atrium Causes the heart to contract AV node: bridge between the atria and ventricles Purkinje system: carry the electrical signals throughout the ventricles to make them contract EKG