Conduction System of The Heart Flashcards
1
Q
What is the original pacemaker of the heart?
A
Sinoatrial node (sa node).
2
Q
What initiates the heartbeat?
A
Sinoatrial node (sa node).
3
Q
What is a normal heart rate?
A
60 to 100 BPM
4
Q
What node acts as a backup pacemaker?
A
Atrioventricular node (av node).
5
Q
How many beats per minute is the Atrioventicular node?
A
40 to 60 BPM
6
Q
What is the last pacemaker site?
A
Purkinje fibers.
7
Q
How many beats per minute is the purkinje fibers?
A
20 to 40 BPM
8
Q
What are the 3 sites for pacemakers?
A
- Sinoatrial node (sa node)
- Atriolventricular node (av node)
- Purkinje fibers
