Across
- 3. where the blood picks up oxygen
- 5. the cells that begin forming a clot if you get a cut
- 9. the type of muscle that makes up the heart
- 10. the organ that filters waste from your blood
- 14. the tube that carries urine from the bladder out of the body
- 16. the liquid part of the blood
- 19. the system that moves blood around your body
- 20. small structures that swell with white blood cells when you are sick, and filter germs from the body
- 23. a blood vessel that carries blood back to the heart
- 25. a cell that carries oxygen to all the cells of the body
- 26. the tube that carries urine from the kidneys to the bladder
- 28. where most blood cells are made
Down
- 1. a cell that kills bacteria and viruses
- 2. where the blood picks up nutrients
- 4. an organ in the immune system that filters germs from the blood
- 6. the system that fights germs
- 7. the hollow muscle that pumps the blood
- 8. the system that filters waste from your blood
- 11. the tiny units in the kidney that filter waste from the blood
- 12. a very small blood vessel that supplies the individual body cells
- 13. the waste gas that you breath out
- 15. the molecule in blood cells that actually carries the oxygen
- 17. the storage sac that holds the urine until you use the washroom
- 18. the tubes that carry the lymph
- 21. proteins made by the white blood cells that tag invading germs for destruction
- 22. the beat that you feel when you press your fingers on an artery
- 24. a blood vessel that carries blood away from the heart
- 27. a structure in the heart and blood vessels that keeps blood flowing in one direction