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