50847
Description
Mind Map by ferrarijunkie, updated more than 1 year ago
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Created by ferrarijunkie
over 11 years ago
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The Alveoli-
Efficiency of Gas
Exchange
- Alveoli provide a large surface are for
Gas Exchange
- The spherical shape of each alveoli
provides a large SA:VOL ratio for
diffusion
- The walls of alveoli and surrounding
blood capilaries are in close contact
- This provides a short diffusion
pathway for gas exchange
- This provides a short diffusion
pathway for gas exchange
- The walls of alveoli and
capilaries are ine cell
thick
- Therfore, Short diffusion
pathway
- Therfore, Short diffusion
pathway
- Steep conc. gradient maintained
between blood and alveous air to allow
continuous gas exchange
- There is a most lining for
gases to dissolve in
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