Across
- 3. system that allows your body to transport oxygen from the air throughout your body as well as get rid of waste gases, like C02, from your blood.
- 8. tubes located below the trachea that connect into each lung
- 9. tiny blood vessels found in the walls of the alveoli that move carbon dioxide and oxygen
Down
- 1. Tiny air sacs found in the lungs that allow the exchange of oxygen and carbon dioxide to occur
- 2. a tissue flap located at the entrance to your trachea that closes when you swallow so that food doesn’t enter the airways
- 4. hollow areas between the bones in your head that allow one to regulate the humidity of the body’s oxygen
- 5. set of bones that protect the heart and lungs
- 6. the passage that connects the lungs to the throat
- 7. muscle that allows you to pull in air as well as push out air
- 10. two organs that take the oxygen you bring from the air and transport it to your blood