Breathing and gas exchange
- Created by: jakeharris12345
- Created on: 22-04-18 18:27
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- breathing and gas exchange
- gas exchange system
- lungs found in chest and are protected by your ribcage
- ventilation system moves air in and out of your lungs
- provide an efficient surface for gas exchange in the alveoli
- ventilation system moves air in and out of your lungs
- lungs found in chest and are protected by your ribcage
- for an exchange system to work effectively
- large difference in concentration of gas on different sides of exchange membrane
- adaptions of the alveoli
- lungs make gas exchange more efficient
- made up of clusters of alveoli that provide a very large surface area.
- important for achieving the most effective diffusion of oxygen and carbon dioxide
- alveoli have a rich blood supply of capillaries
- maintains concentration gradient in both directions
- alveoli have a rich blood supply of capillaries
- important for achieving the most effective diffusion of oxygen and carbon dioxide
- made up of clusters of alveoli that provide a very large surface area.
- lungs make gas exchange more efficient
- gas exchange takes place down the steepest concentration gradient
- makes exchange rapid and effective
- layer of cells between air in lungs ad blood in capillaries is very thin
- allows diffusion to take place over short dstance
- layer of cells between air in lungs ad blood in capillaries is very thin
- makes exchange rapid and effective
- gas exchange system
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