09:28 duration 9 minutes 28 seconds
Cardiac Conduction System
This video discusses how the conduction system of the heart works. Q: How does the cardiac conduction system work?
05:39 duration 5 minutes 39 seconds
Electrical Conduction
Reasons wh the SA node is the pacemaker, relative refractory period vs absolute refractory period. Q: Why is the SA node the pacemaker?