Key Learning Points
Action Potential
Electrodes on the Patient Page 8
- ECG skin electrode allows the monitor to pick up electrical signals from millions of depolarizing cardiac cells.
Cell Impulse Origination, ExternalPage 5
- The cellular depolarization process can be initiated externally from an adjacent cell(a) or an implanted pacemaker(b).
Cell Impulse Origination, Internal(Automaticity) Page 5
- Automaticity is the ability of cardiac cells to initiate their own depolarization process, spontaneously.
- Almost all cardiac cells have the property of, automaticity.
