initial r wave of avr lead

presentation advertising screenshot multimedia document diagram cartoon circle design poster banner brand label organ font text line logo circle wave lead avr limb leads amplitude qrs potential ventricular excitation left ventricle right hospital heart rate cardiogram electrocardiogram cardiac electrical activity graph graphic myocardium depolarization electrocardiogram monitoring ecg segment electrocardiograph healthy beat cardiac cardiology diagnosis disease ecg education ekg theory health heart heartbeat medical medicine rhythm impulse human interventricular septum bundle branch initial vector wave