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Cardiac Physiology Part 2: QRS Complex and Excitation-Contraction Coupling
Once the AV nodal delay concludes, the electrical impulse is unleashed into the rapid ventricular conduction system. The High-Voltage QRS ComplexThe impulse travels down the Bundle of His, divides into the right and left bundle branches, and spreads through the Purkinje fiber network into the ventricular myocardium. Because the ventricular muscle mass is substantially larger…