Across
- 2. blood from legs to heart
- 4. keep blood moving in correct direction
- 6. a large vein
- 9. major blood vessels in neck
- 10. blood towards heart
- 11. oxygen goes to
- 13. heart, lungs, veins, arteries
- 14. taken to lungs by blood
Down
- 1. carries blood to right side of heart
- 3. breathing in air
- 5. cleans the blood
- 7. blood away from heart
- 8. main artery
- 9. connects the veins and arteries
- 12. the main organ in the circulatory system