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, ...
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...
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.
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.
Everything you need to know about how you breathe.