Respiratory System: Science Videos

This series explains how your lungs work. You will learn how air moves in and out, how oxygen passes into your blood, and how carbon dioxide leaves. You will also learn how your brain controls breathing and how gas laws explain it all. Breathing is something we do every moment, and this series shows the science behind it. Some basic biology and chemistry will help with the more detailed videos.

Note: All Khan Academy content is available for free at www.khanacademy.org