Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Textbook Question
Chapter 18, Problem 10RQ
During exercise, the
A. 10 percent
B. 20 percent
C. 30 percent
D. 40 percent
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During exercise, the P(A 2 a)O2 begins to increase when the oxygen consumption reaches about what percent of its maximum?A. 10 percentB. 20 percentC. 30 percentD. 40 percent
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/min
Under certain circumstances, the respiratory quotient (RQ value) for an athlete exercising intensely can rise above 1. How is this possible?
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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- Under certain circumstances, the respiratory quotient (RQ value ) for an athlete exercising intensely can rise above one. How is this possible?arrow_forwardDuring 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)arrow_forwardA 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.arrow_forward
- The below graph shows both ventilation and blood lactate concentration as a function of total oxygen consumption during a bout of exercise. Explain the relationship between these two variables and why these two measures (ventilatory threshold and lactate threshold) tend to occur around the same level of exercise intensity.arrow_forwardGraph the change in oxygen uptake during recovery from exercise. Label the excess post-exercise oxygen consumption (EPOC) (i.e., oxygen debt).arrow_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_forward
- The 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_forwardWhich of the following is a benefit to cardiorespiratory training? A. Increase in oxygen consumption B. Increase in lung capacity C. Lower resting heart rate D. All of the abovearrow_forwardWhich of the following would increase the surface tension in the lungs? a. Increased intrapleural fluid production b. An increased compliance c. A decreased production of surfactant d. Increased elastic recoil 108.arrow_forward
- Mark's maximal oxygen consumption on an exercise test is 55 ml/kg/min. What MET level did he acheive on his exercise test? Hint: When going from METS to ml/kg/min your multiply by 3.5 ml/kg/min. When going in the opposite direction, ml/kg/min to METS you divide by 3.5 ml/kg/min.arrow_forwardThere is a theory that suggests a patient with COPD might have a depression of ventilation following administration of high fiO2. Which of the following best summarizes the recommendations on how to address this concern? A. Never administer supplemental oxygen to patients with COPD as the risk of them stopping breathing is too great B. Treat acute hypoxemia with oxygen, but wean the oxygen as soon as possible C. Always double filter oxygen being delivered to a patient with COPD to ensure there are no particles that may be breathed in D. Supplement oxygen therapy with medical grade carbon dioxide to maintain dr to breathearrow_forwardAfter running for 1 mile, which of the following would increase? Select all that apply. a. Tidal volume b. Expiratory Reserve Volume c. Inspiratory Capacity d. Functional Residual Capacity e. Vital Capacity f. Total Lung Capacity g. Inspiratory Reserve Volume h. Residual Volumearrow_forward
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