Flashcards in Flow Through Tubes Deck (14):
The rate of movement of fluid particles along the tube
How is flow related to cross sectional area?
Flow is inversely proportional to cross sectional area
The extent to which the fluid layers resist sliding over one another
How is velocity related to viscosity?
Velocity is inversely proportional to viscosity
How does velocity relate to cross sectional area?
Velocity is directly proportional to cross sectional area
How do blood flow and radius relate?
Blood flow is proportional to the fourth power of the radius
How do pressure, resistance and flow relate?
Pressure = flow x resistance
How do we measure the resistance for vessels in series?
Add the resistances
How do we measure the resistance for vessels in parallel?
Resistance is lower as we add together the reciprocals of resistance of each vessel
How does flow change around the circulatory system?
It doesn't. Flow is the same at all points of circulation.
What factors may cause turbulent blood?
A sound we hear on auscultation
What happens to resistance as the vessel stretches?