Vascular shunt mechanism Flashcards
1
Q
What is venous return?
A
The volume of blood returning to the right atria via the veins
2
Q
What is starlings law?
A
Increased venous return leads to increased stroke volume, due to an increased stretch of the ventricle walls and therefore force of contraction
3
Q
What is the vascular shunt mechanism?
A
the redistribution of cardiac output around the body from rest to exercise which increases blood flow to skeletal muscles.
4
Q
How does vascular shunt occur during exercise?
A
5
Q
How does vascular shunt occur during rest?
A
6
Q
What is the cardiac output during rest to organs and muscles?
A
Organs: 80-85%
Muscles 15-20%
7
Q
What is the cardiac output during exercise to organ and muscles?
A
Organs: 10-15%
Muscles:80-85%
