Arrhythmias - Tisdale Flashcards
1
Q
What does the sinus node do?
A
Generate electrical impulses
2
Q
What do internodal pathways do?
A
Conduct electrical impulses
3
Q
Where is the AV Node?
A
In between the atria and ventricles (in lower R atrium)
4
Q
What depolarizes the ventricles?
A
Purkinjes fibers
5
Q
How do the cardiomyocytes that aren’t directly traversed by the conduction system contract?
A
Gap junctions allow ions to move through the cells, spreading the action potential so they all contract
