Differentiate between SA node and AV node.... | Filo

Have you ever seen this arrhythmia? It’s called AV Dissociation. It can be seen during bradycardia when the SA node in the heart (the main pacemaker) is firing at slow rate and secondary ventricular pacemakers are firing at a faster rate. Normal AV node conduction is absent. So the atria and ventricles are not talking to one another P waves may be seen occasionally but can be masked by the ventricular complexes. It is often caused by anaesthetic drugs, very commonly alpha 2 agonists (Medetomidin