Intrinsic Conduction System Flashcards
1
Q
Coordinated
A
Cells contract together
2
Q
Regular
A
Cells contract at right time
3
Q
Intrinsic conduction system consists of…
A
Myocytes
4
Q
SA Node
A
Sinoatrial node - heart beat starts here (CONTAINS PACEMAKERS)
5
Q
Internodal pathways
A
Connects SA node and AV node. Distributes AP through atria
6
Q
AV Node
A
Atriiventricular node. Contains backup pacemaker cells.
7
Q
Bundle of His
A
Allows to pass AP quickly. Does not contract, and has more pacemaker cells
8
Q
Purkinje Fibers
A
Smallest conducting fibers. Very spread out and connects to contractile cells.
9
Q
A
