Across
- 6. Red blood cell
- 7. Heart sac
- 10. Tiny vessel
- 11. From heart
- 12. Pumping chamber
- 13. To heart
- 14. Heart lining
Down
- 1. Heart muscle
- 2. Immune cell
- 3. Largest artery
- 4. Clotting cell
- 5. Vein Lung-to-heart vessel
- 8. Artery Heart-to-lung vessel
- 9. Heart chamber
- 13. Cava Largest vein