Across
- 2. a red liquid
- 3. holds the substances in blood
- 4. valve: between the right atrium and the right ventricle
- 7. white fluid made up of white blood cells.
- 9. Blood Cells: cells carrying oxygen
- 13. stops backflow of blood
- 16. 1 cell thick
- 17. has 4 chambers
- 19. Smaller arteries
- 20. blood cells: cells of the Immune system
- 21. carries deoxygenated blood from body back to the heart
- 23. one of the substances that blood carries around.
Down
- 1. the main artery of the body
- 2. valve: between the left atrium and the left ventricle
- 5. not containing oxygen
- 6. Organ of the urinal system that cleans out blood.
- 7. Organ of the digestive system that cleans out blood
- 8. a protein in red blood cells
- 10. containing oxygen
- 11. a very small vein
- 12. heartbeat
- 14. stop bleeding
- 15. relating to the lungs
- 18. carries oxygenated blood from body back to heart
- 22. cava: a large vein carrying deoxygenated blood