Pressure changes in the cardiovascular system primarily result from
changes in the force of contraction of the heart
What is the driving force for blood flow?
pressure gradient
Which of the following is directly proportional to blood flow?
blood vessel radius and pressure gradient
Arteries close to the heart need to be able to compensate for
pressure changes.
What effect do you think increasing the pressure will have on the fluid flow rate?
he fluid flow rate will increase.
Do you think a graph plotted with pressure on the X-axis and flow rate on the Y-axis will be linear (a
straight line)?
yes
This experiment uses pressure changes to model
changes in the force of concentration of the heart.
The effect of increasing pressure was to
increase flow rate
Blood pressure is measured in
mm Hg
Which of the following variables has the greatest effect on blood flow?
vessel radius
Blood flow is measured in
ml/min
Explain the effect that pressure changes had on flow rate.
With increased pressure, flow rate increases
How does the plot differ from the plots for tube radius, viscosity, and tube length?
Plot between the flow rate and pressure makes straight line, only pressure among all factor.
Explain why pressure changes are not the best way to control blood flow.
It had just proportion with flow rate, while fourth power of radius has proportion with flow rate.
Use your data to calculate the increase in flow rate in ml/min/mm Hg.
1.4