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