How does the respiratory system works with scuba diving?

Scuba: I didn't know how to summarize it to fit into a small space. Here is a very good article: http://suite101.Com/article/good-breathing-techniques-for-scuba-diving-a218867.

Fine, if your respir: Pulmonary disease can put a diver at risk for serious complications. If you have known respiratory disease or undiagnosed respiratory symptoms, see a diving medicne specialist before diving.