DSA | Circulation and Hemodynamics (Ballam) Flashcards
1
Q
Arteries contain _______ volume of blood
A
Stressed
2
Q
Venules and veins contains ________ volume of blood
A
Unstressed
3
Q
Most of our blood is contained in…
A
Venules/veins
roughly 65%
4
Q
How do you calculate velocity of blood flow?
A
V= Q/A
V=velocity
Q=flow
A= cross sectional area
5
Q
What is the equation used to determine the relationship b/w blood flow, pressure and resistance?
A
Q = change in P / R
6
Q
Resistance to blood flow equation?
A
Poiseuile’s law
R= 8Nl/ pi r ^4
*RADIUS HAS THE BIGGEST IMPACT
7
Q
What is reynold’s number useful for?
A
Predicting whether flow will be
TURBULENT
or
LAMINAR
8
Q
Compliance of blood vessels increases with
A
Age
9
Q
Pulse pressure =?
A
Systolic blood pressure - Diastolic blood pressure
10
Q
A
