Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Textbook Question
Chapter 2, Problem 5RQ
When arranged for flow Poiseuille’s law states that flow is
1. inversely proportional to r4.
2. directly proportional to P.
3. inversely proportional to
4. directly proportional to l.
A. 1 only
B. 2 only
C. 2 and 3 only
D. 3 and 4 only
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The 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.
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Chapter 2 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 2 - The average compliance of the lungs and chest wall...Ch. 2 - Normally, the airway resistance in the...Ch. 2 - 3. In the normal individual in the upright...Ch. 2 - Prob. 4RQCh. 2 - 5. When arranged for flow Poiseuille’s law states...Ch. 2 - 6. During a normal exhalation, the
1....Ch. 2 - At rest, the normal pleural pressure change during...Ch. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Assuming that pressure remains constant, if the...
Ch. 2 - Prob. 11RQCh. 2 - Prob. 12RQCh. 2 - 13. If alveolar unit A has one-half the compliance...Ch. 2 - 14. If a patient weighs 175 pounds and has a tidal...Ch. 2 - 15. Lung compliance study
Part /: If a patient...Ch. 2 - 16. If a patient produces a flow rate of 5 L/sec...Ch. 2 - Prob. 17RQCh. 2 - If the radius of a bronchial airway, which has a...Ch. 2 - In the healthy lung, when the alveolus decreases...Ch. 2 - 20. At end-expiration, is
A. 0 mm Hg.
B. 2 mm...Ch. 2 - Case 1 Because this patient's ribs were broken on...Ch. 2 - Case 1
2. As a result of the previously described...Ch. 2 - Case 1 The pathophysiologic process that developed...Ch. 2 - Case 2 As a result of the hyperinflation, the...Ch. 2 - Case 2 Because of the lung hyperinflation...Ch. 2 - Prob. 2CAQ3Ch. 2 - Case 2 As the airway resistance increased in this...Ch. 2 - Case 2
5. A product of the time constants is the...
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- What is the value of the blood flow’s Reynolds number in the capillaries? (i.e.,while using the Re based on pipe diameter). a) Less than 1b) 1060c) 2300d) more than 2300arrow_forwardThe effect of radius on flow rate. Figure 3A: the fluid reservoir is placed on top of the bench 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 diameter tubes is recorded on a stopwatch. (Figure 3B) The calculated flow rate plotted against the tube radius (r) as well as against r4. a. Interpret the graph b. Is the radius a variable that is likely to change to control blood flow to different tissues? How? c. What are the implications for the control of blood flow if it is proportional to the fourth power of a variable?arrow_forward3. During heavy exercise, the total cardiac output may increase as much as A. 2-fold B. 4-fold C. 6-fold D. 8-foldarrow_forward
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