cardiac Flashcards
1
Q
What are the main arteries pumping service to the heart?
A
Coronary arteries
2
Q
What is the first node that sets the electrical impulse?
A
SA node - 60-100bpm
3
Q
If the SA node is not working? What picks up?
A
AV node - 40-60 bpm
4
Q
If the SA node and AV node do not work, what happens?
A
purkinje fibers beat at 20-40 bpm
5
Q
What system is the heart rate controlled by?
A
autonomic nervous system
6
Q
what is the amount of blood pumped with each contraction?
A
stroke volume
7
Q
the amount of blood pumped from the left ventricle each minute
A
cardiac output
8
Q
the product of cardiac output and peripheral vascular resistance
A
blood pressure
9
Q
volume of blood in ventricles at the end of diastole
A
preload
10
Q
resistance left ventricle must overcome to circulate blood
A
afterload
