1-1: Describe the relationship between vessel radius and blood flow rate?
The radius and blood flow are directly proportional to each other. As the vessel radius increases, the blood flow also increases.
1-2: Explain the effects that the flow tube radius change had on flow rate. How well did the results compare with your prediction?
Depending upon the local needs of nutrients and oxygen by the tissues, blood vessels will increase or decrease their radii by altering the amount of contraction of the smooth muscle in the tunica media.
1-3: Describe the effect that radius changes have on laminar flow of a fluid?
Increase in radius size, an increase in flow. It will be quickest, however, at the center. The blood flow by the walls will be slowest.
1-4: Describe an advantage of slower blood velocity in some areas of the body, for example, in the capillaries of our fingers?
Allows for optimal filtration and reabsorption of materials to and from the capillary bed
Activity 2: Studying the Effect of Blood Viscosity of Blood Flow Rate
2-1: Describe the components in the blood that affect viscosity?
Formed elements such as red blood cells can increase viscosity
2-2: What happens to blood flow rate when viscosity is increased?
Decreased
2-3: What happens to blood flow during anemia?
Increased.
2-4: Explain why the relationship between viscosity and blood flow rate is inversely proportional?
Increasing the number of blood cells would increase the viscosity. This would result in a decrease in the flow rate due to the increased viscosity.
Please put in your own words, if needed! Hope this helps.
Quick Reply
