Cardiovascular Flashcards
1
Q
where do you get the signals for your heart to contract?
A
SA node
2
Q
where is the SA node located?
A
posterior wall of the right atrium
3
Q
where does the signal spread too
A
SA node to AV node to the bundle of his to the ventricles to contract
4
Q
from the bundle of his, where does the signal go?
A
bundle of his to the vertebral fibers (posterior and anterior aspect of the ventricles
5
Q
are the valves closed when the blood comes from the superior or inferior vena cava or from the pulmonary veins?
A
no, once the contraction finishes the valves open up to bring blood into the vessel
