Across
- 1. the process of blood clotting
- 3. upper chambers of the heart
- 5. blood vessels that carry blood back to the heart
- 8. blood vessels that carry blood away from the heart
- 9. largest artery in the body that carries oxygenated blood from the heart
- 10. blood cells that help in clotting
- 11. valve between the left atrium and the left ventricle
- 13. blood cells that fight infection
Down
- 2. blood cells that carry oxygen
- 4. protein in red blood cells that carries oxygen
- 6. the lower chambers of the heart
- 7. muscular wall that separates the left and right sides of the heart
- 12. sound your heart makes when the valves close