pex 5 - Exercise 5 Cardiovascular Dynamics Activity 1 Studying the Effect of Blood Vessel Radius on Blood Flow Rate Lab Report Pre-lab Quiz ResultsYou

pex 5 - Exercise 5 Cardiovascular Dynamics Activity 1...

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September 24, 2014 Exercise 5: Cardiovascular Dynamics: Activity 1: Studying the Effect of Blood Vessel Radius on Blood Flow Rate Lab Report Pre-lab Quiz ResultsYou scored 100% by answering 5 out of 5 questions correctly. 1. Blood flow is measured inYou correctly answered: b. ml/min. 2. Which of the following has the greatest effect on blood flow? You 3. Which of the following would not result in a decrease in the blood vesselradius? You correctly answered: c. vasodilation 4. The diameter of the blood vessel is the same asYou correctly answered: 5. The opening of the blood vessel where the blood flows is called the You Experiment ResultsPredict Question:Predict Question 1: What do you thinkwill happen to the flow rate if the radius is increased by 0.5 mm? Your 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)?Your answer : b. Stop & Think Questions:What is the driving force for blood flow?You How does the body increase the blood vessel radius? You correctly 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
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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 ResultsYou scored 100% by answering 4 out of 4 questions correctly. 1. The variable that you altered in this activity was You correctly answered: 2. Vessel radius and fluid flowYou correctly answered: b. are directly 3. After a heavy meal, when we are relatively inactive, we might expect blood vessels in the skeletal muscles to be somewhat __________ and theblood vessels in the digestive organs to be somewhat __________.You 4. When you increased the flow tube radius, the fluid flow rate You Review Sheet Results1. Explain how the body establishes a pressure
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2. Explain the effect that the flow tube radius change had on flow rate. Howwell did the results compare with your prediction?Your answer:As the flow
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