Blood Flow Through the Heart #2 Flashcards
1
Q
atrial kick meaning
A
the natural contraction of bicuspid valve to push blood from atria to ventricles
2
Q
cardiac twist
A
the twisting of heart to force blood upwards
3
Q
2 causes of pressure increase in ventricles
A
1) more blood taking up space
2.) less volume from the contraction
4
Q
Why do valves naturally shut when needed?
A
they open and close in specific directions
5
Q
What is regurgitation?
A
when valve fails to close fully blood flows back into initial chamber
6
Q
How does “lub” sound occur?
A
when both mitral valve and tricuspid valve shuts closed
7
Q
How does “dub” sound occur?
A
when pulmonary valve and aortic valve shuts closed
