Hemodynamics of the Cardiovascular System Flashcards
Blood flow velocity is fastest in the ___ and slowest in the ____
Fastest - aorta
Slowest - capillaries
What is the formula to determine the blood flow?
BP = CO x TPR
A 50% change in the radius of the artery results to a ___ decrease in the blood flow
1/16
Resistance = (8nl/pi r^4)
Turbulent blood flow is decreased by a decrease in _____ (viscosity, velocity)
viscosity
Increase in velocity results to a turbulent blood flow
What is the formula to determine the capacitance?
C = V/P
Capacitance decreases with age
The ratio of arterial compliance to venous compliance is ____
1:20
The formula for the mean arterial pressure
MAP = 2/3diastole + 1/3systole
The formula for pulse pressure
SV/Arterial compliance
SPP = Systolic pressure - Diastolic Pressure
A decrease in arterial radius results in ___ of the CO
decrease in CO
the blood velocity is fastest in the center in ___ blood flow
laminar
in laminar blood flow, the blood velocity is slowest at the? ____
vessel walls
A Reynold’s number >2,000 is associated with a ____ blood flow
irregular, disorderly
“turbulent”
bruits have a ___ reynold’s number
> 2000
high
Anemia is associated with a ____ blood flow
turbulent
Atherosclerotic blood vessel is associated with a ____ blood flow
turbulent
The higher the viscosity of the blood is associated with a ___ blood flow
laminar blood blow
The smaller arterial diameter is associated with ___ blood flow
turbulent blood flow because of increased blood velocity from decreased blood vessel radius
what parameter in CV system decreases with age?
capacitance
the systolic pressure that is higher than the aorta is located in ___
large arteries
[name the formula]
SV/Arterial compliance
pulse pressure
[name the formula]
= systolic pressure / arterial compliance
pulse pressure
