QRS complex: ventricular activation
T wave: ventricular repolarisation
T
P wave QRS width (<0.12s) (<0.10s)
«--
PR interval QT interval
(< 0.20 s) (< 0.42 s at ratę of 60/min)
Annulus
fibrosus Left bundle branch
Bundle of His Sinoatrial node
Atrioventricular (AV) node
Right bundle branch
Left atrium
Right
ventricle
Left anterior fascicle
Left posterior fascicle Left ventricle
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