the lungs and gaseous exchange

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  • Created by: leah
  • Created on: 28-04-14 13:21

1. why are the alveoli walls one cell thick

  • to provide a large surface area to volume ratio
  • to keep the area moist
  • to provide a thin permable surface area for gas exchange
  • the allow more air in it
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2. what is Vital Capacity

  • how far the lungs increase by during inspiration
  • breathing in and out
  • Maximum volume of gas exchanged after lungs have been filled to maximum capacity
  • the important capacity of the lungs

3. what is inspiritopry and expiritory reserve volumes

  • mean tidal volume
  • the amount of gas in the lungs at any given time
  • the additional volume that can be inhaled/exhaled after inhalation/exhalation of the tidal volumes
  • breaths per minute

4. what is the best clinical indicator of breathing

  • vital capacity
  • inspiritory and expirotry reserve volumes
  • residual volume
  • tidal volume

5. what is residual volume

  • the volume remaining after maximum exhalation
  • the gas that does not enter the lungs
  • the process of air entering the lungs
  • the volume of moist air


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