Other questions in this quiz

2. What is the tidal volume?

  • Volume of air moved in and out at rest
  • Inspiratiory/expiratory reserve volume
  • Largest volume of air that an be moved in and out in one breath
  • Volume of air that always remains in he lungs

3. What are the walls of the trachea made up of?

  • Elastic fibres
  • Cartilage
  • Smooth muscle
  • Goblet cells
  • Ciliates epithelium

4. Why does blood bring CO2 to the lungs?

  • Maintain diffusion gradient
  • Reduce diffusion distance
  • So gaseous exchange is faster
  • To increase the concentration of CO2 in the alveolus

5. Smooth muscle mainly makes up what wall in the respiratory system?

  • Bronchioles
  • Alveolus
  • Trachea
  • Bronchi


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