Heart Flashcards
(8 cards)
1
Q
Cardiac output
A
The amount of blood ejected from the left ventricle into the aorta per minute
2
Q
Stroke volume
A
The amount of blood ejected by a ventricle during each systole
3
Q
End diastolic volume
A
The amount of blood that enters a ventricle during each diastole
4
Q
End systolic volume
A
The volume of blood still left in a ventricle following its systole
5
Q
Frank-Starlings Law of the heart
A
The length of the cardiac muscle fibers determines the force of the contraction
6
Q
Degree of stretch of the cardiac muscle just before they contract
A
Pre-load
7
Q
Back pressure exerted by arterial blood for the ventricles to overcome
A
After-load
8
Q
The extrinsic factor that increases contractility or increases SV and is independent of muscle stretch and EDV
A
Contractility
