digestion

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