Chapter 12 Lymphatic System

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Across
  1. 3. weakened or killed antigen injected into a person for the purpose of stimulating a primary immune response; conveys artificial active immunity; results in immunological memory
  2. 6. a physiological response of the body to tissue injury
  3. 7. cell particularly abundant in lymphatic and connective tissue
  4. 8. the lymphatic vessels and lymphoid tissues and organs, including lymph nodes
  5. 12. white blood cells formed in the bone marrow that mature in the lymphoid tissue
  6. 13. short-lived immunity resulting from the introduction of “ donated antibodies” obtained from an immune animal or human donor
  7. 15. antigen-specific defenses mounted by activated lymphocytes
  8. 20. the body system responsible for protecting the body from pathogens and foreign cells
  9. 22. descendants of a single cell
  10. 23. lymphocytes that oversee humoral immunity; their descendants differentiate into antibody-producing plasma cells
  11. 27. natural defenses that protect against all foreign material
  12. 29. the process by which a B cell or T cell becomes sensitized through biding contact with an antigen
  13. 30. the type of T lymphocyte that orchestrates cellular immunity by direct contact with other immune cells and by releasing chemicals called cytokines
  14. 33. a protein molecule, released by plasma cells, that mediates humoral immunity; an antibody
  15. 34. a depressed area where vessels enter and leave an organ
  16. 35. an endocrine gland active in the immune system
  17. 37. unique lymphocytes that are part of the nonspecific defenses
  18. 39. cells that display portions of foreign antigens to T cells; include dendritic cells, macrophages, and B lymphocytes
  19. 41. second and subsequent responses of the humoral arm of the immune system to a previously met antigen
  20. 42. the initial response of the humoral arm of the immune system to an antigen
Down
  1. 1. defensive proteins that assist the innate defenses by attacking microbes directly or by preventing their reproduction
  2. 2. pure preparations of identical antibodies that exhibit specificity for a single antigen
  3. 4. an enzyme found in sweat, saliva, and tears that is capable of destroying certain kinds of bacteria
  4. 5. disease-causing microorganisms
  5. 9. resulting from the deficient production or function of immune cells or certain molecules
  6. 10. including toxins, foreign proteins, or bacteria that, when introduced to the body, is recognized as foreign and activates them immune system
  7. 11. organs in the lymphatic system, including lymph nodes, spleen, and tonsils
  8. 14. immunity produced by an encounter with an antigen; provides immunological memory
  9. 16. immunity conferred by lymphocytes called T cells
  10. 17. allergies; overreaction of the immune system to a perceived threat, resulting in tissue damage
  11. 18. member of T cell and B cell clones that provides for immunological memory
  12. 19. branch of the immune system that targets specific antigen; involves B and T lymphocytes and antigen presenting cells
  13. 21. member of a B cell clone; specialized to produce and release antibodies
  14. 24. blockage of the harmful effects of bacterial exotoxins or viruses by the binding of antibodies to their functional sites
  15. 25. a group of plasma proteins that normally circulate in inactive forms
  16. 26. an agent or chemical substance that induces fever
  17. 28. the passage of blood cells through intact vessel walls into the tissues
  18. 31. an abnormal accumulation of fluid in body parts or tissues; causes swelling
  19. 32. a substance that causes vasodilation and increased vascular permeability
  20. 36. effector T cell that directly kills foreign cells
  21. 38. type of T lymphocyte that slows or stops activity of B and T cells once the antigenic threat is ended
  22. 40. immunity provided by antibodies released by sensitized B cells and their plasma cell progeny