Across
- 3. device that helps the heart beat
- 6. blood cells / help prevent disease
- 9. the hole in the middle of veins and arteries
- 12. red pigment in blood
- 15. flaps in the heart that prevent backflow of blood.
- 16. they carry oxygen around the body
- 18. pumps deoxygenated blood to lungs
- 19. carries oxygenated blood from the lungs
Down
- 1. carries blood to the heart
- 2. recieves oxygenated blood from lungs
- 4. the main artery
- 5. one of the proteins in blood
- 7. carries deoxygenated blood to the lungs
- 8. part of the heart that recieves deoxygenated blood
- 9. pumps oxygenated blood to the body
- 10. arteries that have one cell thick walls
- 11. liquid part of blood
- 13. is carried in red blood cells
- 14. / they help blood clot, sealing a wound
- 17. carries blood away from the heart