BMS1032 respiratory example Q's

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1. the dorsal respiratory group...

  • is responsible for fine tuning expiration
  • is responsible for fine tuning inspiration
  • controls the contraction of the diaphragm and external intercostals
  • controls the contraction of the accessory muscles of ventilation
  • controls forces exhalation
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2. in quiet breathing....

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

3. most of the co2 in the blood is transported as:

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

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

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

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

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


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