Concept explainers
(a)
To determine: The velocity of a fluid using the given flow rate and area of the cross-section.
Introduction: The flow of blood is dependent on the resistance and radius of the tube. Resistance and radius of a tube are inversely proportional which means a decrease in radius increases the resistance and vice versa. The flow of blood is inversely proportional to resistance which means that the increase in resistance would decrease the flow of blood and vice versa.
(b)
To determine: The reason for a decrease in potential energy in tube B as well as for increase when the fluid moves from B to C.
Introduction: The energy possessed by an object or fluid when it is at rest is known as potential energy. The energy possessed due to the movement of an object is known as kinetic energy. The sum of kinetic energy and potential energy is equal to the total energy of the fluid or object.
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Human Physiology: An Integrated Approach (8th Edition)
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- The effect of parallel tubes on flow rate. A: the fluid reservoir is placed on top of the bench (Figure 4A) to give a pressure head. This is connected to the flow module by rubber tubing with a clamp on it. A 5-mL volumetric flask is used to collect fluid, and the time taken with different numbers of tubes in parallel is recorded on a stopwatch. (Figure 4B) The calculated flow rate plotted against the number of tubes. a. Interpret the graph b. What variable is the addition of more tubes in parallel affecting? c. What are the benefits to the tissue of having more blood vessels in parallel?arrow_forwardUnder fully thawed conditions, what path will the high frequency current take and why?arrow_forwardThe effect of length on flow rate. A: the fluid reservoir is placed on top of the bench (Figure 2A) to give a pressure head. This is connected to the flow module by rubber tubing with a clamp on it. A 5-mL volumetric flask is used to collect fluid, and the time taken with different lengths of tubes is recorded on a stopwatch. (Figure 2B) The calculated flow rate plotted against the length of tube. a. Interpret the graph/data b. Would you expect the length of blood vessels to change in the body as a means of controlling flow? Comment on your answer. c. Is this likely to be a common mechanism for controlling blood flow to different tissues?arrow_forward
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