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The "mountain sickness" in persons climbing to high attitudes without the aid of oxygen cylinders is due to

A. lack of sufficient amount of haemoglobin

B. lack of sufficient amount of erythrocytes

C. arterial hypoxia

D. anaemic hypoxia

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  1. Tissue respiration is a process by which
  2. The rate of respiration is lowest at
  3. In frog, the alveoli are surrounded by
  4. Oxygen will diffuse through a membrane only if it is
  5. In a man at rest the body's cells consume approximately
  6. The respiratory portion of the respiratory tract consists of
  7. The oxygen pressure in the alveolar air is
  8. The rate and depth of breathing is primarily controlled by medulla by
  9. To take air into the lungs, the diaphragmmust be
  10. The oxygen content of expired air in man is
  11. Internal respiration refers to
  12. The process of breathing-in of oxygen rich air from outside is called
  13. The regulatory centre for respiration is situated in the
  14. The opening into the wind pipe or trachea is called
  15. All are lung diseases except
  16. Diaphragm is characteristic of
  17. The medullary inspiratory centre is always under direct control of
  18. The substances undergoing slow oxidation in the body during respiration are known as
  19. The vibrations of which of these membranes produces vocal sounds?
  20. The condition in which the body suffers from acute oxygen shortage is called
  21. Oxygen is transported to every cell of the body through
  22. Air directly enters the tracheae via the
  23. Which of the following can respire in total absence of air (anoxyliosis)?
  24. In all vertebrates, the oxygen transport is through
  25. The greatest volume of air that can be expired after a maximum inspiratory affect, is its
  26. A normal man respires in a minute
  27. The impulses reaching voluntary muscles for forced breathing originate from
  28. During inspiration in mammals, the diaphragm shall
  29. Anoxia means
  30. The term used to denote the difference in volume between the total lung capacity and the vital capacity…