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4 Written questions

4 Multiple choice questions

  1. T lymphocyte that directly kills foreign cells
  2. lymph nodes in the armpit
  3. a system of proteins that circulate in the bloodstream and that combine with antibodies to protect against antigens
  4. chemicals released by T helper cells that stimulate B cells, proteins that aid and regulate the immune response

4 True/False questions

  1. acquired immunityFormation of antibodies and lymphocytes after exposure to an antigen


  2. immunotheropythe body's capacity for identifying, destroying, and disposing of disease-causing agents


  3. cervical nodeslymph nodes in the neck region


  4. antibodymass of lymphatic tissue in the nasopharynx