cvslab2-1 - CardiovascularDynamicsPhysiologySimulationLab...

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Cardiovascular Dynamics Physiology Simulation Lab Activity 1: What happened to fluid flow as the radius of the flow tube was increased? Because fluid flow is proportional to the fourth power of the radius, ________ changes in tube radius  cause  ________ changes in fluid flow. Is the relationship between fluid flow and the flow tube radius linear or exponential? Explain how our blood vessels alter blood flow. After a heavy meal when we are relatively inactive, we might expect blood vessels in the skeletal  muscles to be somewhat ___________, whereas blood vessels in the digestive organs are probably  ____________. Activity 2: How does fluid flow change as viscosity is modified? Is fluid flow versus viscosity an inverse or direct relationship? How does the effect of viscosity compare with the effect of radius on fluid flow? Predict the effect of anemia on blood flow. What might happen to blood flow if we increased the number of blood cells? Explain why changing blood viscosity would or would not be a reasonable method for the body to  control blood flow. Blood viscosity would __________ in conditions of dehydration, resulting in _____________ blood  flow. Activity 3:
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How does flow tube length affect fluid flow? Explain why altering blood vessel length would or would not be a good method of controlling blood  flow in the body. Activity 4: How does driving pressure affect fluid flow? How does this plot differ from the others? Although changing pressure could be used as a means of blood flow control, explain why this approach 
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cvslab2-1 - CardiovascularDynamicsPhysiologySimulationLab...

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