Matching Pairs Ch. 8 Cardiac Conduction Online version Cardiac Electrical System by Linu John 1 T wave 2 P wave 3 QRS Complex atrial depolarization ventricular repolarization ventricular depolarization 1 interval 2 positive deflection 3 negative deflection 4 wave 5 complex 6 Isoelectric line deflection away from the baseline downward deflection several waves that are measured together baseline or flat portion wave plus a segment upward deflection 1 SA node 2 Bundle Branches 3 AV Node 4 Purkinje Fibers 5 Bundle of His 60-100 bpm 20-40 bpm 40-60 bpm (step after SA node) 40-60 bpm (named after a MD) 40- 60 bpm (has two routes) 1 R-R interval 2 ST segment 3 PR Interval 4 QT interval 5 QRS Interval 0.12- 0.20 second 0.36 to 0.44 second should stay at baseline should be regular less than 0.12 second