6.4 Gas Exchange/Ventilation

(http://ibbio.pbworks.com/f/1305621458/alveolus.jpg)

Interesting links:

‪Gas Exchange During Respiration‬

http://www.youtube.com/watch?v=EFCj9STCvdI

Pressure Changes during Breathing‬

http://www.youtube.com/watch?v=ZvTdc1nAuBo&feature=related

The Lungs and Pulmonary System

http://www.khanacademy.org/science/biology/human-biology/v/the-lungs-and-pulmonary-system