When the air reaches the alveoli, oxygen diffuses through the membrane into small blood vessels called capillaries, and carbon dioxide diffuses from the blood in the capillaries into the alveoli.
Physiology of Breathing
From Lori Alma, former About.com Guide
Updated September 22, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
More About Breathing
Related Articles
See More About
Explore Cystic Fibrosis
Must Reads
Most Popular
- About.com
- Health
- Cystic Fibrosis
- Cystic Fibrosis 101
- Gas Exchange - Gas Exchange in the Alveoli
Also from About.com:
©2013 About.com. All rights reserved.
