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Ciliated epithelium in the trachea of mammals helps in

A. sucking-in air

B. pushing expired air out

C. pushing mucus out

D. keeping the alveolar air in circulation

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  1. The metal associated with haemoglobin is
  2. Anoxia means
  3. The carbon dioxide pressure in the lung capillaries is
  4. The functional unit of the lung is
  5. Colour of oxyhaemoglobin is
  6. The term used to denote the difference in volume between the total lung capacity and the vital capacity…
  7. The medullary inspiratory centre is always under direct control of
  8. The greatest volume of air that can be expired after a maximum inspiratory affect, is its
  9. The iron containing haemoglobin pigment is a
  10. In frog, the alveoli are surrounded by
  11. The respiratory portion of the respiratory tract consists of
  12. In response to high altitude hypoxia supply of oxygen to the tissue is maintained by
  13. The rate and depth of breathing is primarily controlled by medulla by
  14. Internal respiration refers to
  15. The condition in which the body suffers from acute oxygen shortage is called
  16. In all vertebrates, the oxygen transport is through
  17. Emphysema is a respiratory disease in which
  18. The substances undergoing slow oxidation in the body during respiration are known as
  19. Among the following, the maximum amount of usable energy is released per-molecule of glucose by
  20. The process of breathing-in of oxygen rich air from outside is called
  21. Pulmonary artery
  22. Air directly enters the tracheae via the
  23. The respiratory tubes devoid of car-tilagenous rings are
  24. The capacity of lungs for air in a healthy man is about
  25. The oxygen content of expired air in man is
  26. The membrane covering the lungs is
  27. The regulatory centre for respiration is situated in the
  28. In rabbits, respiration takes place in
  29. Diaphragm is characteristic of
  30. The maximum volume of inspirable air is called