Alveoli and Villi

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  • Created by: Abbie
  • Created on: 06-05-12 13:26

Alveoli and Villi

Gas exchange in the lungs...

Job of the lungs - transfer oxygen to the blood and remove carbon dioxide

To do this they contain millions of little air sacs called alveoli where gas exchange takes place

(http://library.thinkquest.org/19347/media/alveoli.jpg)

Alveoli are adapted to maximise the diffusion of…

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