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6. the lungs are enclosed in______ membranes:

  • thoracic
  • pleural
  • costal
  • pulmonary
  • pericardial

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

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

8. 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

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

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

10. 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

11. the dorsal respiratory group...

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