venous return Flashcards
1
Q
what is venous return
A
the return of deoxygenated blood back to the right atrium
2
Q
what is skeletal muscle pump
A
the action of muscles squeezing against the veins assisting blood back to the heart
3
Q
what is respiratory pump
A
muscle action around the thoracic and abdominal regions causes changes in pressure. change in pressure allows the veins in this region to compress, assisting venous return
4
Q
what do pocket valves do
A
ensure that blood in the veins can only move towards the heart and prevent backflow
5
Q
how does blood pressure affect venous return
A
an increase in systolic blood pressure leads to an increase in venous return. this is due to
