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5 Written questions

5 Matching questions

  1. 6. _____ are the largest of the lymphatic vessels and they empty into the ________.
  2. 36. Helper T (TH) cells do not
  3. 50. Autoimmune diseases are disorders in which the immune system fails to distinguish _____ from foreign ones.
  4. 30. T cells undergo positive selection in the thymus, which means
  5. 49. A person who is HIV-positive and has helper T (TH) cells count lower than ______ has AIDS.
  1. a 200 cells
  2. b secrete fever-producing chemicals
  3. c collecting ducts; subclavian veins
  4. d they multiply and form clones of identical T cells
  5. e self antigens

5 Multiple choice questions

  1. antigen recognition -- antigen presentation -- clonal selection -- differentiation -- attack
  2. thymus
  3. palatine
  4. T cells
  5. cancer cells

5 True/False questions

  1. 23. Complement C3b protein coats bacteria and stimulates phagocytosis by _____ in a process called _____.endogenous pyrexia


  2. 2. Lymph is similar to blood plasma but very low inprotein


  3. 25. One characteristic of the immune response is specificity. This means thatimmunity is directed against a particular pathogen


  4. 22. These are a group of proteolytic enzymes secreted by natural killer (NK) cells.artificial passive immunity


  5. 24. _______ are antimicrobial proteins.artificial active immunity