- Spontaneous decline in Pk in pacemaker cells of SA node
- Prepotential
- Firing Level --> AP
- Cell to cell conduction through Atrial Myocytes
- Excitation- contraction of Atria
- Atrial Systole followed by Atrial Diastole
- Spread along the conducting system (HIS -Purkinje System)
- Excitation- contraction of ventricles
- Ventricular Systole followed by ventricular diastole
ONE HEART BEAT
muax
korwoi
