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 Respiratory zone - Definition 

The respiratory zone is the site of O2 and CO2 exchange with the blood.

The respiratory bronchioles and the alveolar ducts are responsible for 10% of the gas exchange. The alveoli are responsible for the other 90%.


Respiratory system Edit (http://en.wikipedia.org/w/wiki.phtml?title=MediaWiki:Respiratory_system)

Nose - Nasal cavity - Pharynx - Larynx - Trachea - Lungs - Conducting zone - Respiratory zone


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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Respiratory zone".