Immune System Vocab

12345678910111213141516171819202122232425
Across
  1. 2. roam the body in blood & lymph, unique group of aggresive lymphocytes that can lyse & kill cancer cells, virus-infected body cells, & other nonspecific targets
  2. 7. engulf & destroy bacteria, viruses, & other foreign sbstances
  3. 8. "immunoglobins", constitute the gamma globulin part of blood proteins, soluble proteins secreted by activated B cells or their plasma-cell offsring in response to an antigen & are capable of binding specifically with that antigen
  4. 9. "hypersensitivities", abnormally vigorous immcongenital responses in which the immune system causes tissue damage as it fights off a perceived "threat" that would otherwise be harmless to the body
  5. 11. capable of responding to a specific antigen by binding to it with antigen-specific receptors that appear on the lymphocytes surface
  6. 13. when your B cells encounter antigens & produce antibodies against them
  7. 15. harmful microorganisms
  8. 17. include both cogentital & aquired conditions in which the production or function of immune cells or complement is abnormal
  9. 19. "eating cell", engulf foreign particles by the process of phagocytosis
  10. 22. "cell-mediated immunity", protective factor in living cells, when lymphocytes themselves defend the body
  11. 23. when insteada of antibodies being made by plasma cells, they're being obtained from the serum of an immune human or animal donor
  12. 24. fights invaders that get past the innate defense system by mounting an attack against 1 or more particular foreign substances
  13. 25. when the body produces antibodies (auto-antibodies) and specialized T cells that attack and damage its own tissue
Down
  1. 1. member of T cell & B cell clones that provide for immunological memory
  2. 3. responds immediately to protect the body from all foreign substances, we're born with it (skin & mucous membranes)
  3. 4. refers to a group of at least 20 plasma proteins that circulate in the blood in an inactive state, but when fixed to foreign cells, they're activated & become a major factor in the fight against foreign cells
  4. 5. "antibody-mediated immunity", provided by antibodies(immune proteins) present in the body's humors (fluids)
  5. 6. antigens that are recognized as self and do not triggger an immune response (are still highly antigenic to other people)
  6. 10. small protein secreted by virus-infected cells, diffuse to nearby cells & bind to their membrane receptors. Stimulates synthesis of proteins that imterfere with the ability of viruses to multiply in the still-healthy cells (don't assist with fighting bacteria or fungi)
  7. 12. chemicals released by WBCs & macrophages exposed to foreign cells in the body, an upward production can cause fever
  8. 14. member of T cell and B cell clone, specialized to produce & release antibodies
  9. 16. "T cells", constitute the cell-mediated arm defenses & don't make antibodies
  10. 18. a nonspecific response that's triggered whenever body tissues are injured
  11. 20. "B cells", produce antibodies & oversee humoral immunity
  12. 21. any substance capable of provoking an immune response (foreign intruders=nonself)