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Chapter 85: Sports Physiology Hall: Guyton and Hall Textbook of Medical Physiology, 13th Edition MULTIPLE CHOICE 1. Which of the following would be expected to occur as an untrained person begins to exercise? A. Increased pulmonary vascular resistance B. Decreased cardiac output C. More homogenous ventilation/perfusion ratios throughout the lung D. Decreased diffusing capacity ANS: C PTS: 1 2. Which of the following is true during moderate aerobic exercise? A. Arterial pO2 increases to more than 120 mm Hg B. Arterial pCO2 decreases C. Arterial pH decreases D. Alveolar ventilation increases E. Blood lactate level increases ANS: D PTS: 1 3. A 25-year-old woman is comfortably running a 10K race. At 8K, which of the following would describe her blood composition? Arterial pO2 Arterial pCO2 Mixed Venous pO2 A.    B.    C.    D.    E.    F.    G.    H.    ANS: A PTS: 1 4. Which of the following is most likely to occur in a person exercising strenuously? A. Decreased arterial hemoglobin saturation B. Venous hemoglobin saturation of less than 30% C. Increased pulmonary capillary transit time D. Pulmonary vasoconstriction from hypoxia ANS: B PTS: 1 5. In an exercising person, which choice below is correct? TEST BANK FOR GUYTON AND HALL TEXTBOOK OF MEDICAL PHYSIOLOGY 13TH EDITION BY HALL NURSINGKING.COM #1 U.S NURSING TEST BANKS STORE This study source was downloaded by from CourseH on 08-19-2023 12:25:28 GMT -05:00 Harryson N U R S I N G K I N G . C O M Arterial Blood Venous Blood A. Figure 1 point C Figure 2 point A B. Figure 1 point C Figure 2 point B C. Figure 1 point D Figure 2 point C D. Figure 1 point D Figure 2 point B E. Figure 1 point E Figure 2 point C F. Figure 1 point E Figure 2 point B ANS: D PTS: 1 6. A 60-year-old male runner is trying to fight old age and increase his aerobic performance in the marathon. Which of the following would help the most? A. Sodium bicarbonate B. Amphetamines C. Anabolic steroids D. Erythropoietin ANS: D PTS: 1 7. A 46-year-old woman is completing her exercise test. Which of the following will occur? A. All areas of her lung will have the same blood flow B. The upper portion of the lung will have more flow than the lower portion C. The lower portion of the lung will have more flow than the upper portion D. Hypoxic vasoconstriction limits the maximal oxygen consumption ANS: C PTS: 1 8. After the completion of an 80-mile bicycle race, which of the following would replenish muscle glycogen the fastest? A. No food intake B. Sweet and sour pork C. Fried catfish D. Pasta E. Steak ANS: D PTS: 1 9. Early in the onset of moderate exercise, there is a rapid increase in minute ventilation because of which of the following? A. Perfusion of the carotid body with hypoxic blood TEST BANK FOR GUYTON AND HALL TEXTBOOK OF MEDICAL PHYSIOLOGY 13TH EDITION BY