Breathing and circulation
How the respiratory and circulatory systems work as a team to deliver oxygen and remove carbon dioxide.
7 minutes · 6 stops · School tour
- Air in
Air travels down the trachea, which is held open by rings of cartilage, and splits into two bronchi, one for each lung.
- Gas exchange
- Breathing muscles
- To the heart
- Pumped to the body
- Back again