Immune System

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Across
  1. 4. Killer Cells/Destroys virus-infected body cells (and cancer cells), attacking cell membrane and lysing cells
  2. 5. lymphocytes/In 3rd line of defense, mature in thymus gland and fight pathogens in cell-mediated response: stimulated by infected body cells and APCs
  3. 6. lymphocytes/In 3rd line of defense, mature in bone marrow and fight in humoral response by producing antibodies
  4. 7. cells /Long-lived cells bearing receptors specific to same antigen as plasma cells, remain circulating in blood for a lifetime, are reactivated in secondary immune response
  5. 8. response/Response where there is vasodilation and more blood flow, increased body temperature, all to attract more phagocytes to the area
  6. 9. as an APC, engulfing a bacterium and presenting a fragment of it to cell surface by an MHC II cell to cause cloning of Helper T cell in the same MHC-antigen combination
  7. 12. Line of Defense/Nonspecific defense, including skin, mucous membranes, cilia, stomach acid
  8. 13. Line of Defense/Nonspecific defense, including inflammatory response, phagocytes, complement, interferons, and NK cells
  9. 16. /These ingest invading microbes, include neutrophils (short life) and monocytes (become macrophages)
  10. 17. Line of Defense/Specific line of defense, relies on B lympocytes and T lymphocytes
Down
  1. 1. by basophils and mast cells, causes vasodilation and is responsible for most symptoms of common cold
  2. 2. called immunoglobins, each a y-shaped molecule with 4 polypeptide chains and destroy free-floating antigens by either neutralizing and then having it eaten by a macrophage, or activating a complement
  3. 3. T cells/These T cells announce to the immune system that foreign antigens have entered the body. When activated, also differentiates into plasma cells and memory cells
  4. 10. of immunity where individual makes own antibodies after being ill and recovering, or from a vaccine
  5. 11. of immunity where antibodies are transferred to an individual from someone else
  6. 14. T cells/These T cells kill body cells infected with viruses, pathogens and cancer. They have antigen receptors, and kill by releasing perforin to lyse membrane
  7. 15. temperature