Key Learning Points
Conduction Tissue
Myocardium Without Conduction Fibers Page 4
- Without conduction tissue, the depolarization wave would travel through heart muscle, cell to cell; a very slow process, creating a wide ECG wave.
Fibrous Barrier Page 5
- The heart has a fibrous barrier(a) between the atrial and ventricular muscle tissue, which isolates the atrial and ventricular depolarization processes.
SA Node (Primary Pacemaker)Page 7
- The sinoatrial Node also called the SA Node or sinus Node is the impulse generating, or Primary Pacemaker, of the heart.
