Across
- 1. organ that pumps blood through the body
- 4. the level of carbon dioxide in the blood is detected
- 5. travels from the pulnomary vein to it
- 7. tiny air sacks
- 9. is the blood in the capillary
- 11. materials are exchanged with cells
- 15. maining the bodies
- 16. also what the system is responsible for transporting
- 17. small vessels
- 18. collecting bodies waste
Down
- 1. an iron based pigment that gives your blood its red colour
- 2. responsible for transporting oxygen and nutrients to your bodys cells
- 3. you release it from digested food
- 6. small veins
- 8. transport blood back to the heart
- 10. the system is responsible for transporting
- 12. oxygenated blood travels from the lung
- 13. transport blood to the heart
- 14. transports gases by tubes
- 19. oxyganated blood travels under high pressure