 # Fluid Dynamics and Flow Rate

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635 Words Grammar Plagiarism  Writing  Score Fluid Dynamics and Flow Rate Exercise 5: Cardiovascular Dynamics: Activity 1: Studying the Effect of Blood Vessel Radius on Blood Flow Rate Lab Report
Pre-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.
1. Blood flow is measured in
2. Which of the following has the greatest effect on blood flow?
3. Which of the following would not result in a decrease in the blood vessel radius?
4. The diameter of the blood vessel is the same as
You correctly answered: b. two times the radius of the blood vessel.
5. The opening of the blood vessel where the blood flows is called theYou correctly answered: b. lumen.
Experiment Results Predict Question:
Predict Question 1: What do you think will happen to the flow rate if the radius is increased by 0.5 mm?
Predict Question 2: Do you think a graph plotted with radius on the X-axis and flow rate on the Y-axis will be linear (a straight line)?
Stop & Think Questions:
What is the driving force for blood flow?
How does the body increase the blood vessel radius?
Experiment Data:
Flow (ml/min) Radius (mm) Viscosity Length (mm) Pressure (mm Hg)
4.0 1.5 1.0 50 100
12.6 2.0 1.0 50 100
30.7 2.5 1.0 50 100
63.6 3.0 1.0 50 100
117.8 3.5 1.0 50 100
201.0 4.0 1.0 50 100
321.9 4.5 1.0 50 100
490.6 5.0 1.0 50 100
Post-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
1. The variable that you altered in this activity wasYou correctly answered: c. vessel radius.
2. Vessel radius and fluid flow
You correctly answered: b. are directly proportional.
3. After a heavy meal, when we are relatively inactive, we might expect blood vessels in the