Respiratory System
Across
- 2. Bones that surround and protect your lungs and heart
- 4. How air goes into your body
- 6. its the organ that collects the air
- 7. It is found at the end of the trachea and splits the air into each lung
- 8. odourless gas produced by burning carbon and organic compounds and by respiration
- 9. This is the muscle that is responsible for inflating and deflating the lungs
- 11. Its the pipe that sends air to the lungs
Down
- 1. movement of molecules from high concentration to low concentration
- 3. These are the air sacs that exchange oxygen and carbon dioxide in the blood
- 5. air goes inside the lungs so we can breathe
- 7. hese are the small air tubes that connect the bronchus to the alveoli
- 10. Blood vessels in the alveoli walls that move oxygen and carbon dioxide.