3B: Cardiopulmonary Flashcards
1
Q
What is hemodynamics?
A
principles that govern BLOOD FLOW in the cardiovascular system
2
Q
Blood flow through arteries is affected by what two major variables?
A
Pressure and resistance
(Blood Flow) Q= changeP/R
3
Q
What is Q?
A
The quantity of blood flowing through a vessel, organ, or entire circulation in a given period of time (L/min)
4
Q
What is blood flow driven by?
A
Driven by pressure differences (gradients) in the same sense that simple diffusion of chemical substances is driven by concentration differences or gradients.
5
Q
What is blood pressure?
A
force with which blood is pushed against the walls of blood vessels.
