Q. Regarding the conduction system of the heart: (Solved)
1. the right bundle branch (of HIS) divides into anterior and posterior fasicles
2. the AV node contains P cells
3. myocardial fibres have a resting membrane potential of -60mV
4. action potential in the SA and AV nodes are largely due to Na+ influx
5. there are two types of K+ channels in pacemaker tissue – transient and long acting
- b. the AV node contains P cells