BMS1032 respiratory example Q's

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1. pulmonary ventilation referes to:

  • the utilisation of oxygen
  • the movement of air into and out of the lungs
  • the movement of dissolved gases from the alveoli to the blood
  • the movement of dissolved gases from the blood to the interstitial space
  • the movement of dissolved gases from the interstitial space to the cells
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2. most of the co2 in the blood is transported as:

  • carbonic acid
  • as bicabonate ions in the plasma
  • bicarbonate ions in the cytoplasm of RBC
  • carbaminohaemoglobin
  • solute dissolved in the plasma

3. an increase in the level of co2 in the blood will....

  • increase o2 diffusion at the lungs
  • stimulate the ventral respiratory group
  • increase pulmonary ventilation
  • decrease gaseous exchange at the lungs
  • decrease the firing of central chemoreceptors

4. in quiet breathing....

  • inspiration involves muscular contractions and expiration is passive
  • inspiration and expiration involve muscular contractions
  • none of the above
  • inspiration is passive and expiration involves muscular contraction
  • inspiration and expiration are both passive processess

5. place the following structures in order in which air passes through them:

  • bronchioles, 1' bronchi, 2' bronchi, alveoli, terminal bronchi
  • 1' bronchi, 2' bronchi, bronchioles, terminal bronchioles, alveoli
  • terminal, 1', 2' alveoli, bronchioles
  • alveoli, bronchioles, 1', 2', terminal

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