L4 Cardiac impulse Flashcards
1
Q
Properties of cardiac tissue.
A
Automaticity: spontaneous action potential, gap junctions (quick spread of impulse).
Sinoatrial (SA) node: 100/min (pacemaker).
Atrioventricular (AV) node: 40-60/min.
Purkinje cells: Not specialised, rate of ~ 35/min
