Ventricular myocardium
40-60 BPM
Delays impulse from the SA Node because it contains non-conductive tissue. Relays it to the bundle of His
Primary pacemaker
AV Node
Relays impulse to Purkinje Fibers
60-100 BPM
Upper interventricular septum
SA NODE
Relay impulse to ventricular myocardium
Interventricular septum
Upper Right Atrial Wall
Intrinsic rate 20-40 BPM
Bottom of the right atrium
Relays impulse to right and left bundle branches
