Anatomy Chapter 6: Immune System

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Across
  1. 4. An injection that produces a mild form of a disease in order to help build up an immunity to it.
  2. 8. Form in the thymus and other lymphatic tissue and attack cancer cells, viruses, and foreign substances.
  3. 10. Enhance innate defense by attacking microorganisms directly or hindering microorganisms ability to reproduce.
  4. 11. Proteins (cytokines) secreted by T cells and other cells to aid and regulate the immune response.
  5. 13. Protein that is produced by lymphocytes and that attaches to a specific antigen and keeps them from harming the body.
  6. 15. A toxin or other foreign substance that induces an immune response in the body, especially the production of antibodies.
  7. 16. A bacterium, virus, or other microorganism that can cause disease.
  8. 18. Proteins that lyse the cell wall of an antigen. They are part of the nonspecific defense mechanisms of the immune system and helps destroy pathogens by coating or puncturing them.
Down
  1. 1. Process in which extensions of cytoplasm surround and engulf large particles and take them into the cell.
  2. 2. Most common type of white blood cell and can leave the blood stream to attack bacteria.
  3. 3. A type of cell within the body capable of engulfing and absorbing bacteria and other small cells and particles.
  4. 5. Macrophages, Dendritic Cells, B Cells
  5. 6. A localized physical condition in which part of the body becomes reddened, swollen, hot, and often painful, especially as a reaction to injury or infection.
  6. 7. The resistance to the spread of a contagious disease within a population that results if a sufficiently high proportion of individuals are immune to the disease, especially through vaccination.
  7. 9. The ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
  8. 12. These are formed in the bone marrow and release antibodies that fight bacterial infections.
  9. 14. Abnormally high body temperature.
  10. 17. Found within the lymph nodes, they are phagocytes that destroy bacteria, cancer cells, and other foreign matter in the lymphatic stream.