Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 18, Problem 9RQ
During maximum exercise, the oxygen diffusion capacity may increase as much a
A. 3-fold
B. 6-fold
C. 9-fold
D. 12-fold
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During exercise, the oxygen consumption (V(o2)) of the skeletal muscles may account for more than A. 65 percent of the total V(o2) B. 75 percent of the total V(o2)C. 85 percent of the total V(o2)D. 95 percent of the total V(o2)
A person with a high Vo2maxa. needs less oxygen than someone with a low Vo2max.b. has stronger muscles than someone with a low Vo2max.c. is less likely to show muscle tetanus than someone with a low Vo2max.d. has fewer muscle mitochondria than someone with a low Vo2max.e. experiences less muscle fatigue during exercise than someone with a lowVo2max.
As lung compliance decreases, the plasma HCO3 in cells moving from the lungs to the heart will:
a. increase b. decrease c. stay the same
Chapter 18 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 18 - Prob. 1RQCh. 18 - 2. The maximum alveolar ventilation generated...Ch. 18 - 3. During heavy exercise, the total cardiac output...Ch. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - During exercise, the oxygen consumption (VO2) of...Ch. 18 - During very heavy exercise, the 1. pH increases 2....Ch. 18 - 9. During maximum exercise, the oxygen diffusion...Ch. 18 - During exercise, the P(A=a)O2 begins to increase...
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- During exercise, the oxygen consumption (VO2) of the skeletal muscles may account for more than A. 65 percent of the total VO2 B. 75 percent of the total VO2 C. 85 percent of the total VO2 D. 95 percent of the total VO2arrow_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_forwardExercise can trigger symptoms of AMS due to which of the following? low partial pressure of oxygen low atmospheric pressure abnormal neural signals small venous reserve of oxygenarrow_forward
- If a male runner's maximum oxygen uptake in a minute (VO2max) is 3.6 L/min, his maximum energy expenditure per minute is; a. 14.48 kcal/min b.17.28 kcal/min c.15.00 kcal/min d. 8.64 kcal/minarrow_forwardThe volume of oxygen transported in soluble form by 1000 ml of arterial blood plasma if pO2 = 100 mm Hg will be: A. 10 ml B. 20 ml C. 30 ml D. 40 ml E. 50 mlarrow_forwardThe maximal amount of oxygen that can be used by a person during physically exhausting exercise is called: Group of answer choices A. Maximal Oxygen Consumption B. VO2Max C. Aerobic Capacity D. Cardiovascular endurance E. Both A and B are correct All of the above are correctarrow_forward
- "During old age due to decreased muscle due to atrophy, which can be expected as a possible scenario?" a Increased frequency of urinary infection b Increase in exercise tolerance c decrease in fatigue d decrease in accidentsarrow_forwardGraph the change in oxygen uptake during recovery from exercise. Label the excess post-exercise oxygen consumption (EPOC) (i.e., oxygen debt).arrow_forwardDefine the term oxygen deficitarrow_forward
- 36. Which of these does NOT directly influence oxygen loading and unloading? a. pH of the blood b. Concentration of 2,3-DPG in the blood C. Temperature of the blood d. Partial pressure of oxygen in the blood e. Partial pressure of oxygen in the cellsarrow_forwardThe oxygen consumed after strenuous exercise stops is significantly greater than the oxygen deficit and is termed excess postexercise oxygen consumption (EPOC). Why is so much more oxygen required after intense exercise?arrow_forward13. A patient undergoing an exercise stress test is found to exhibit higher PaO₂ during exercise than before exercise. Which of the following is the most likely explanation for an increase in PO₂ during exercise? A. Decreased PACO₂ due to hyperpnea. 2 B? Decreased V/Q mismatching and PVR due to distension and recruitment of blood vessels C. Increased PÃO₂ due to decreased respiratory exchange ratio 2 D. Increased PÃO₂ due to increased respiratory exchange ratioarrow_forward
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