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