Across
- 2. main function of the lungs and the oxygen to the blood
- 5. blood type that can be donated to other
- 7. tiny hairs covering many body tissues
- 8. system of organs including the lungs whose main function is to get oxygen to the blood
- 13. carries blood away from the heart
- 14. carry blood towards the heart
- 16. yellowish liquid that carries the blood cells through the blood vessels
- 17. tubes tubes entering the lungs
- 19. sacs where exchanges of gases takes in place in the lungs
- 20. back of the throat
- 21. lower chamber in the heart that pushes out blood
- 22. fight infection and diseases
Down
- 1. system of the heart blood, and blood vessels
- 3. pressure placed on the walls of the blood vessels
- 4. stringy substance that helps form scabs
- 6. artery taking blood from the heart to the body
- 9. illness that causes fluid to settle in the lungs
- 10. tube leading to the lungs
- 11. muscle below lungs that expands the chest
- 12. blood cell carries oxygen and nutrients to the cells
- 15. tags on the cells
- 18. vocal box
- 19. upper chamber in the heart that receives blood