The Immune System

1234567891011121314151617181920212223
Across
  1. 3. These blood cells take in pathogens and then use enzymes from lysosomes to digest the pathogen
  2. 7. The process of going into a cell through a vacuole
  3. 12. Immunity When cells attack only the pathogens they are triggered by
  4. 13. When cells attack all pathogens
  5. 14. A blood clot is called a _______; coronary thrombosis are blood clots in the coronary arteries
  6. 15. This enzyme forms a mesh within the cut to trap platelets and blood cells
  7. 16. A virus that invades and destroys helper T-cells and leads to the progressive decrease in antibody production
  8. 19. The enzyme converts fibrinogen, a soluble protein, into fibrin
  9. 20. Antibiotics are ________ which allows them to attack harmful bacteria in the body while not harming the host
  10. 23. Chemicals that trigger a response by the immune system
Down
  1. 1. Blood flowing from the severed vessel transforms from a liquid to a semi-solid gel to seal the wound and prevent further loss of blood/blood-pressure
  2. 2. Cellular fragments that circulate in the blood and release clotting factors when there is a cut
  3. 4. Pathogens that are only able to survive inside the human body
  4. 5. The outcome of a build up of mutated bacteria that aren’t affected by antibiotics
  5. 6. White blood cells that create antibodies
  6. 8. Florey and Chain’s experiments to test ______ on bacterial infections in mice
  7. 9. Pathogens that survive inside the body and invade it but can survive outside
  8. 10. When an antigen is sensed these products of lymphocytes attack and kill the foreign pathogen
  9. 11. Glands that secrete the chemical sebum
  10. 17. They cannot be treated using antibiotics because they lack a metabolism
  11. 18. A biological agent that causes disease or illness to its host
  12. 21. An antibacterial enzyme in mucus that give it antiseptic properties
  13. 22. The first line of defense the body has against pathogens