Across
- 2. smallest blood vessels
- 5. carry deoxygenated blood away
- 6. help clot blood
- 9. carries oxygenated blood from the lungs to the heart
- 11. inner layer of the heart
- 12. carries deoxygenated blood from the heart to the lungs
- 14. white blood cells
Down
- 1. middle layer of the heart
- 3. largest blood vessel of the body
- 4. receive blood from hearts upper chambers
- 5. where blood starts and finishes
- 7. carry oxygenated blood away
- 8. outer layer of the heart
- 10. sends blood to lower ventricles
- 13. disk shaped