Study Guide
David Mungai [Date] [Course title]
, Advanced ECG Exam Review Study
Guide
Inherent firing rate of the SA node - Answer>> 60-100bpm
Cardiac cells can lose their internal negativity in a process called -
Answer>> Depolarizations
Inherent firing rate of the AV junction - Answer>> 40-60bpm
Inherent firing rate of the ventricles - Answer>> 20-40bpm
Electrical conducting cells - Answer>> Carry electrical current
to different regions of the heart
Myocardial cells - Answer>> The contractile machinery of the
heart
What is the largest part of the heart tissue - Answer>>
Myocardial cells
Why does conduction slow through the AV node - Answer>>
Because there are no gap junctions
Ventricular repolarization is represented by what on an ECG -
Answer>> The T wave
Segment - Answer>> Straight line connecting two waves
Interval - Answer>> Encompasses at least one wave plus the
connecting straight line
What leads are bipolar - Answer>> Lead 1, 2 and 3