BMS1032 respiratory example Q's

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

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

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

3. the upper respiratory tract includes all except:

  • larynx
  • mouth
  • trachea
  • lungs
  • nasal cavity

4. pulmonary ventilation referes to:

  • the movement of air into and out of the lungs
  • the utilisation of oxygen
  • the movement of dissolved gases from the blood to the interstitial space
  • the movement of dissolved gases from the alveoli to the blood
  • the movement of dissolved gases from the interstitial space to the cells

5. which of the following would make the o2-haemoglobin curve shift right?

  • increases H+ conc
  • none
  • decreased temp
  • increases pH
  • decreased co2

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