Across
- 3. Name the pigment present in red blood cells
- 4. The plasma carries 2 waste materials, one is carbon dioxide, name the other
- 7. what do platelets help the blood do
- 8. What do white blood cells produce to neutrlaise bacterial toxins
- 9. The name of the fluid part of the blood
- 13. what do veins have to help prevent backflow
- 15. blood cells The cells that kill pathogens in the body
- 16. which blood vessel has thick walls of elastic and muscle tissue
- 17. which vessel has a wide lumen
- 18. A sugar carried int he blood plasma (used in respiration)
- 19. What typical animal cell part do red blood cells not have
Down
- 1. which blood vessel is only one cell thick
- 2. By what process do gases move
- 5. white blood cells can engulf pathogens to kill them, or make proteins called what?
- 6. which tissue in an artery can stretch and recoil
- 9. Name the cell fragments that help blood clot
- 10. which tissue in an artery can cause the vessel to widen and narrow
- 11. how would you describe the pressure of the blood in an artery
- 12. what is the hollow region of a blood vessel called
- 14. What gas do red blood cells carry