alveoli of the lungs
- Created by: kamayawalker
- Created on: 17-05-18 14:31
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- describe how the alveoli of the lungs are adapted to their functions (4 marks)
- millions of alveoli providing large surface area for gaseous exchange
- one cell thick walls
- thin squamous epithilia- allows rapid diffusion of gases
- surrounded by water layer on inner surface to allow oxygen to dissolve
- elasticated to allow expansion
- intimate associating with blood capillaries to facilitate gaseous exchange
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