Immunity

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Across
  1. 1. cells/ cell derived from a B lymphocyte specialized to mass-produce antibodies.
  2. 4. infectious particles made strictly of proteins, cause a group of degenerative diseases of the nervous system, also called wasting diseases.
  3. 5. lymphatic organ, located in the trachea behind the sternum involved in the maturation of T lymphocytes in the thymus gland.
  4. 8. long, very thin appendages on some bacteria
  5. 11. chemical mediators that are released by damaged tissue cells and mast cells, that cause capillaries to dilate and become more permeable.
  6. 12. system/ series of proteins in plasma that form a nonspecific defense mechanism against a microbe invasion; it complements the antigen- antibody reaction.
  7. 13. system/ organ system consisting of lymphatic vessels and lymphatic organs that transport lymph and lipids; aids the immune system.
  8. 14. antiviral agent produced by an infected cell that blocks the infection of another cell.
  9. 19. usually a colorless liquid, but after a meal, it appears creamy because of its lipid content.
  10. 20. a large phagocytic cell derived from a monocyte that ingests and debris
  11. 23. stiff fibers that allow bacteria to adhere to surfaces such as host cells.
  12. 25. bone marrow/ produces all types of blood cells.
Down
  1. 1. elongated hollow appendage used to transfer DNA from one cell to another.
  2. 2. foreign substance, usually a protein or a polysaccharide, that stimulates the immune system to produce antibodies
  3. 3. an antibacterial enzyme found in perspiration, saliva, and tears.
  4. 6. small circular pieces of DNA on bacteria
  5. 7. disease causing agents
  6. 9. disease/ prion related disease of the nervous system of humans.
  7. 10. protein secreted by a T cell that stimulates cells of the immune system to perform their various functions.
  8. 15. cells/ cells that mature in the thymus
  9. 16. single-celled prokaryotes that do not have nucleus
  10. 17. organ that filters blood
  11. 18. gelatinous layer surrounding the cells of some bacteria
  12. 21. nodes/ secondary lymphatic organs, which occur along lymphatic vessels, to filter lymph.
  13. 22. these bridge the gap between the living and nonliving.
  14. 24. cells/ cells that mature in the bone marrow