Pacemaker Flashcards
1
Q
What is a pacemaker?
A
Generate electrical impulses - to regulate and maintain heart beat
2
Q
Name the hearts natural pacemaker
The native and primary pacemaker
A
SA node
3
Q
Where is the SA node located
A
Right atrium
4
Q
Name the hearts latent (ectopic and secondary) pacemakers
A
• AV node
• bundle of his
• purkinje fibres
5
Q
Which phase of slop does it decrease?
A
• decrease the slope of phase 4
• lengthens AP
• inhibits re entrant loop
