15: Heart as a pump Flashcards
1
Q
Frank-Starling mechanism
A
Equalizing outputs between right and left ventricles
Heart operates to the left of Lmax
2
Q
Main force ventricles must overcome
A
aortic pressure
3
Q
End systolic volume
A
low pressure
low volume
AV valves open
4
Q
End diastolic volume
A
low pressure
high volume
AV valves close
Preload volume
5
Q
Afterload
A
Semilunar valves open
High pressure
High volume
Pressure heart pumps against
6
Q
ESV determined by
A
afterload and contractility