Across
- 3. Blood vessels that collect oxygen
- 5. Pumps blood
- 9. Movement in the system
- 10. The largest artery in the body
- 12. They carry oxygen from the lungs to the rest of the body
- 13. Moves blood between the heart and lungs
- 14. Gas we breathe out
Down
- 1. Gas we breathe in
- 2. Lower chamber of the heart
- 4. They detect and fight infections
- 6. Largest blood vessels
- 7. Carries liquid through the blood
- 8. A tiny disc-shaped piece of cell found in the blood and spleen
- 9. Smallest blood vessels
- 11. A specialised body fluid