Across
- 2. specialized white blood cell that produces antibodies to fight infection
- 5. controls ability to memorize, think and learn
- 11. column of nerve cells that extends downward from the brain
- 14. four chambered muscle that pumps blood to the body
- 16. vessel that carries blood to the heart
- 18. body system that circulates blood throughout the body
- 19. white blood cell that destroys pathogens
- 23. liquid component of blood
- 24. vessel that supplies blood to the heart muscle
- 26. changes white blood cells into T cells
- 27. control functions of internal organs
- 28. part of the blood that transports oxygen
- 29. germ that causes disease
- 30. mass of nerve tissue that acts as control center
Down
- 1. organ that filters foreign matter from the blood
- 3. clear liquid that surrounds cells and circulates in vessels
- 4. structure that filters and destroys pathogens
- 6. force of blood against the artery walls
- 7. blood cell that attacks and destroys pathogens
- 8. surge of blood that results from contraction in the heart
- 9. carries nutrients, oxygen and carbon dioxide
- 10. vessel that carries blood away from the heart to the lungs
- 12. body system that carries messages to and from the brain
- 13. controls and coordinates muscle activity
- 15. number of times the heart beats in a minute
- 17. carries blood to and from organs within the body
- 20. tiny blood vessel that connects veins and arteries
- 21. blood vessel that carries blood away from heart
- 22. system body system that removes harmful organisms from the blood
- 25. main artery of the body