compensate for a decrease in flowtuberadius. How were you able to accomplish this? (Hint: There are several ways.)
What happens to the pump rate if the filling time is shortened? Circle the correct term within the parentheses: Decreasing the right flowtuberadius is similar to a partial (leakage...
Now decrease the right flowtuberadius to 2.5 mm, and run another trial. How
does thisflow rate compare with “normal”?
Leave the right flowtuberadius at 2.5 mm radius and try to adjust one or more
other conditions to return flow to “normal.” Think logically about what
, increase left baker pressure and decrease right beaker pressure.
22. A decreased tuberadius is analogous to atherosclerosis (plaque formation in vessels). Describe the effect this would have on resistance in the arterial system and how the human heart mightcompensate for this change. Atherosclerosis causes an increased atrial resistance which causes the heart to compensate by increasing pumping pressure....
The pressure differs
2. What do you think would have happened to the flow rate and the pump rate if the left flowtuberadius Is changed?
It would depend on how It is changed if they increase or decreaseFlowRadius Viscosity...
filling time. Decreased the pressure in the right beaker. Increased the pump's pressure
22. A decreased tuberadius is analogous to atherosclerosis (plaque formation in vessels). Describe the effect this would have on resistance in the arterial system and how the human heart mightcompensate for...
blood vessels constrict (vasoconstriction), blood flow is decreased. As blood vessels dilate (vasodilatation), blood flow is increased.
2. In this activity you altered the radius of the flowtube by clicking + and – buttons. Explain how and why the radius of blood vessels is altered in the human...
________________________________________________ ________________________________________________ ________________________________________________ In a clogged artery, what has happened to the radius of the artery? How has this affected blood flow? What could be done to fix this condition? The clog deminishs the radius, thisdecrease the blood flow ________________________________________________ through the clogged...
. Explain the effect that the flowtuberadius change had on flow rate. How well did the results compare with your prediction?
Flowtuberadius change has a direct effect on flow rate. As evidenced in this lab, when flowtuberadius was increased, the flow rate was also increased. They are...
plots for tuberadius, viscosity, and tube length? How well did the results compare with
The plot was linear. The other plots were curved.
3. Explain why pressure changes are not the best way to control blood flow.
Increasing the pressure increases fluid...
The following questions refer to Activity 7: Studying Combined Effects. 19. How did decreasing the left flowtuberadius affect pump chamber filling time? Hint: Look at the change in flow rate and relate this to filling time...
. • Sephadex resins: Volume decreases with increase in ionic strength. • Flow rate decreases with increase in MW range (i.e. G200 runs slower than G25). Can compensate by using peristaltic pump, BUT… • High pressure can collapse Sephadex beads at bottom of column (use polyacrylamide resins). • Bands...
decrease in plasma volume and an increase in interstitial fluid volume.
58. (harder…)So based on your answers to questions 37 and 38, what effect (in isolation) would this situation have on the MAP? Why? Howmight the body try and compensate?
It would decrease MAP because there is less venous return...
increase in the radius of the vein, delivering blood from the lungs. Since the radius of the right tube (artery was decreased), blood flowed out of the ventricular pump at a slower rate. To compensate for this, the radius of the vein was made larger to allow blood to flow into the ventricular pump...
through the heart during atrial systole? Explain HOW and WHY this happens.
2. Expt. 8: (A) Which portion of an ECG corresponds to ventricular diastole? Next, sketch a normal ECG and label the periods of atrial diastole and ventricular diastole. (B) What is happening to blood flow through...
When a fluid moves over a surface, there is a thin layer of the fluid near the surface which is nearly at rest. This thin layer is called the boundary layer.
Flow of a fluid through a pipe Poiseuille's Law
In trying to find out what factors control how fast...
Your answer : b. no
Stop & Think Questions:
What is the driving force for blood flow?
You did not answer this question.
Correct answer: b. pressure gradient
How does the body increase the blood vessel radius?
You did not answer this question.
Correct answer: c. smooth...
Well there needs to be a pressure gradient present because blood is constantly pumping blood. The elasticity of the large
arteries is what helps force the blood along the arteries.
2. Explain the effect that the flowtuberadius change had on flow rate. How well did the...
correctly answered: d. constricted, dilated 4. When you increased the flowtuberadius, the fluid flow rate You correctly answered: a. increased.
Review Sheet Results 1. Explain how the body establishes a pressure gradient for fluid flow. Your answer: The body establishes...
. How could you adjust the afferent or efferent radius to compensate for the effect of the reduced pressure on glomerular filtration rate and urine volume? Use the simulation to determine your answer.
>>Increase the afferent radius or decrease the efferent radius.
3. What changes are...
Lab Time/Date ___
Activity 1 Studying the Effect of Blood Vessel Radius on Blood Flow Rate
1. Explain how the body establishes a pressure gradient for fluid flow. ___
2. Explain the effect that the flowtuberadius...