Relier Pairs CVS Heart: Cells & ECGVersion en ligne Pacemaker, Contractile cells & ECG par Dr MAHABOOB KHAN SULAIMAN 1 Ventricular repolarization 2 Auto-rhythmic 3 Atrial depolarization 4 Non auto-rhythmic cells with long refractory period 5 Ventricular depolarization 6 Contractile cells 7 Plateau phase 8 Funny current 9 Pacemaker Cells QRS wave T wave 1% of cells with no true resting potential Pacemaker cells 99% cells with true resting potential P wave Contractile cells characteristic of contractile cells, slow Ca channels open called pacemaker potential, Ca 'T' type channels open