Across
- 3. gives red blood cell its colour.
- 5. valves that controls the flow of blood of he heart.
- 6. the artry carrying blood from the right ventricle of the heart to the lungs for oxygenation.
- 12. a wall which divides the ventricles.
- 15. the substance which carries the cells arround the body.
- 16. the valve that controls the flow of blood from the left artrium to the left ventricle.
- 20. the organ that pumps blood through the body.
- 21. a tough membrane that surrounds the heart.
- 22. a form of small leukocyte with a single round nucleus occuring in the lymphatic system.
- 24. the thing that transports oxygen arround the body.
- 25. middle part of the artery.
Down
- 1. essentaily recycled plasma.
- 2. the system that transports materials arround the body to and from the body.
- 4. the vessel which carry the blood back to the heart.
- 7. tough covering that protects the outside of the artry.
- 8. the blood vessel that carries the oxygen away from the heart.
- 9. valve which separates the right atrium from the righ ventricle.
- 10. the tube which the plasma goes through.
- 11. the cell which fights infection.
- 13. a simple organic compound containing both carboxyl and an amino group
- 14. provides a smooth lining for the blood to flow over.
- 17. largest artery in the body.
- 18. the bottom part of the heart which is dividedinto two chambers.
- 19. red liquid that circulates the artries.
- 23. the workers which mend wounds.