Across
- 3. another name for the windpipe
- 4. the job or function of the heart in the cardiovascular system
- 5. main organ of the circulatory system
- 6. the main branches that lead from the trachea to the lungs
- 9. the waste that the blood carries away
- 12. system responsible for exchanging gases
- 13. the main organ of the respiratory system
- 15. the type of muscle tissue your heart is made of
- 18. fight disease and infection
- 19. the type of muscle tissue your lungs are made of
- 20. the type of movement where you do not control
Down
- 1. system responsible for moving blood
- 2. another name for the circulatory system
- 7. the gas blood supplies the cells with
- 8. what the body is trying to have when the systems work together
- 10. carries the blood back to the heart
- 11. pumps blood away from the heart
- 14. food the blood carries to the cells
- 16. where red blood cells are made
- 17. the number of items that the blood carries to the cell for it to be healthy