Across
- 3. vein that carry blood from lungs to heart
- 5. blood vessels that carry blood from heart to lungs
- 7. first layer of heart
- 8. 2 large veins superior and inferior
- 10. contains hemoglobin
- 12. helps fight infection
- 14. second layer of heart
Down
- 1. carry blood away from heart
- 2. the lower chambers of the heart
- 4. the uventricles s of the heart
- 6. third layer of heart
- 9. carry blood towards heart
- 11. help clot blood
- 13. largest artery in body