Atrial depolarization
Funny current
Auto-rhythmic
Plateau phase
Contractile cells
Ventricular repolarization
Non auto-rhythmic cells with long refractory period
Ventricular depolarization
Pacemaker Cells
1% of cells with no true resting potential
T wave
P wave
99% cells with true resting potential
called pacemaker potential, Ca 'T' type channels open
QRS wave
characteristic of contractile cells, slow Ca channels open
Contractile cells
Pacemaker cells