More system research information

What do the lungs do? - Emma Bryce

View full lesson: http://ed.ted.com/lessons/what-do-the-lungs-do-emma-bryce When you breathe, you transport oxygen to the body’s cells to keep them working, ...

The Respiratory System

Go inside the human body and see first-hand how the respiratory system works. Vivid animation and real-life examples demonstrate the respiration process, inc...

Real World Science: Circulatory & Respiratory Systems

Heart and Circulatory System

The heart and circulatory system are our body's lifeline, delivering blood to the body's tissues. Brush up on your ticker with this body basics article.

Your Lungs & Respiratory System

What's something kids are doing all day, every day? Breathing! Your lungs are large and in charge of breathing, so read all about them in this article.

Your Respiratory System | Discovery Kids

Everything you need to know about how you breathe.