In your study of neuron physiology, you learned that depolarization is dependent on the sodium entry (influx), and repolarization contingent on the potassium exit (efflux.) Write an essay comparing the action potential in the heart’s pacemaker and contractile cells, then explain why the electrocardiogram has different parts (P, QRS complex, and T wave.) (Don’t exceed 800 words.) Please read about the action potential in the different of cardiac cells and the electrocardiogram before composing the written assignment.
