Stroke volume Flashcards
1
Q
What is stroke volume?
A
the volume of blood pumped out by the heart ventricles in each contractions
2
Q
What is venous return?
A
is the volume of blood returning to the heart via the veins
3
Q
what is the relationship between venous return and stroke volume?
A
if venous return increases then stroke volume will increase (if more blood enters more blood exits)
4
Q
What is starlings law?
A
> the higher elasticity of cardiac fibres causes a greater force of contraction
increase in force of contraction increases ejection fraction
