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  • Created by: Cammie
  • Created on: 20-05-13 12:05
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  • Emphysema
  • The alevoli break down
  • Their walls thicken
  • Surface area decreases
  • Diffusion pathway becomes longer
  • This results in less diffusion
  • The lung's elastic tissue is lost
  • The lungs have reduced elasticity
  • Makes it difficult to expel air
  • Less air leaves the lungs
  • Due to a diminished diffusion gradient
  • Less oxygen can enter the blood
  • Therefore less energy is released
  • Respiration cannot occur


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