Across
- 5. causes brain tissue damage
- 6. gives blood its red colour
- 8. have one-cell thin walls
- 10. holds all blood cells
- 12. clotting that stops bleeding
- 14. glucose+oxygen→carbon dioxide+water
- 15. narrows your arteries
Down
- 1. routes that blood travels
- 2. Part of body immune system
- 3. cannot live without it
- 4. carries oxygen
- 7. transport blood to heart
- 9. a lack of iron
- 11. heart muscles is blocked
- 13. transport blood from heart