Introduction to the Immune System - Innate Immune Response

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Across
  1. 9. a microscopic organism (viruses, bacteria, archaea, fungi, parasites)
  2. 10. the body's first line of defense against pathogens (three words)
  3. 11. a sticky, slimy substance that helps trap pathogens
  4. 14. a type of chemical released by macrophages when they encounter a pathogen
  5. 15. a chemical released by mast cells when they encounter a pathogen
  6. 17. small organs at the back of the throat that contain immune cells
  7. 18. a spongy tissue found inside some bones (two words)
  8. 19. a microbe that causes disease
Down
  1. 1. the organs and tissues that allow you to take in oxygen and release carbon dioxide (two words)
  2. 2. small proteins that bind to a specific antigen on a microbe
  3. 3. a group of organs that produce or contain large numbers of immune cells (two words)
  4. 4. the organs and tissues involved in eating and breaking down food (two words)
  5. 5. organs that contain a variety of immune cells, including B cells, T cells, and phagocytes (two words)
  6. 6. a thin tissue containing cells that make mucus (two words)
  7. 7. the gland where T cells are produced
  8. 8. the tubes that carry a substance called lymph throughout the body (two words)
  9. 12. an organ that contains B cells and T cells that help fight pathogens
  10. 13. a community of microbes that live in and on the body
  11. 16. the body’s thick outer layer that acts as a physical barrier to pathogens