Across
- 3. This word means to breathe out
- 4. This word means to go around and around
- 6. This is where digestion begins
- 7. Blood vessel that carries carbon dioxide toward the heart
- 8. This system's main organs are the lungs
- 9. This system dissolves your food and provides nutrients to the body
- 11. This is the system made up of your bones
- 15. The flap that covers the trachea when you swallow
- 16. This muscle type makes up your internal organs
Down
- 1. This system contains your blood and is pumped by the heart
- 2. Blood vessel that carries oxygen rich blood away from the heart
- 5. Tube that connects the mouth to the lungs
- 6. This is the system that is made up of your muscles
- 10. Tube that connects the mouth to the stomach
- 12. This muscle type is only found in the heart
- 13. This word means to breathe in
- 14. This system controls all the others