28. Which of the following influences (has an effect on) oxygen unloading at the

Question

28. Which of the following influences (has an effect on) oxygen unloading at the tissues of muscles during exercise? a. The pO2 gradient between arterial blood and the exercising muscles b. Body temperature C. Blood pH d. All of the above How would aerobic exercise affect 96 Oxyhemoglobin saturation of venous blood? a. It would be greater than 75% b. It would be less than 75% C. It would be 75% 29 30. Patients with chronically high pCO2 blood levels breathe due to a hypoxic drive. What would happen if they were to breathe in 100% oxygen for a long time?? a. They would be happy because they would finally be able to breath b. It would increase their energy because they would be able to use aerobic rather than anaerobic respiration. Respiratory rate would slow and eventually they would stop breathing c. 31. Normal, healthy people breathe due to a drive. a. Hypercapnic b. Hypocapnic c. Alveolar d. Hypoxic 32. Patients with pulmonary disease causing poor gas exchange at the alveoli may exhibit an increase in arterial pCO2. These patients may develop which type of primary acid-base disorder? a. Respiratory acidosis b. Respiratory alkalosis 33. Which of the following pertains to what happens when the diaphragm, external intercostal, scalene, pectoralis minor, serratus anterior and sternocleidomastoid muscles contract? a. This occurs during forced inhalation. VC would measure the total amount of air b. This occurs during forced inhalation. The sum of TV and IRV would measure the total c. This occurs during forced exhalation. ERV would measure the amount of air forcefully d. This occurs during forced exhalation. VC would measure the amount of air forcefully inspired amount of air inspired expired. expired

Explanation / Answer

28 Answer-

d. All of the above

the all condition may effect the oxygen loading.

29. Answer-

b. It would be less than 75 %

30. Answer-

c. Respiratory rate would slow and eventually they would stop breathing.

31. Answer-

c. Alveolar drvie

32. Answer-

a. Respiratory Acidosis

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