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 5.The opening of the blood vessel where the blood flows is called the
Experiment ResultsPredict 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 was 2.Vessel radius and fluid flow 3.After a heavy meal, when we are relatively inactive, we might expect blood vessels in the skeletal muscles to besomewhat and the blood vessels in the digestive organs to be somewhat You correctly answered: d. constricted, dilated . 4.When you increased the flow tube radius, the fluid flow rate
Review Sheet Results 1.Explain how the body establishes a pressure gradient for fluid flow. 2.Explain the effect that the flow tube radius change had on flow rate. How well did the results compare with yourprediction? 3.Describe the effect that radius changes have on the laminar flow of a fluid. 4.Why do you think the plot was not linear? (Hint: look at the relationship of the variables in the equation). How well did theresults compare with your prediction?
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- Fall '10