The Second Line of Defense: Immune System

1234567891011121314
Across
  1. 3. seek out and destroy disease causing organisms.
  2. 4. Line of Defense is a group of cells, tissues, and organs that work together to protect the body.
  3. 7. are antibodies that B cells that squirt onto the bacteria.
  4. 9. are antibodies acts by blocking the bacteria adhering to the gut cells, preventing infection.
  5. 11. are needed to watch for different diseases or invaders
  6. 12. slow down or turn off the immune system to prevent damage to good cells.
  7. 13. is fluid in which white blood cells are found
  8. 14. filter bacteria and other foreign materials out of lymph and expose them to B and T cells and Macrophages that can engulf them.
Down
  1. 1. are killer cells
  2. 2. notice invaders and present evidence of the invader to T cells in the lymph nodes.
  3. 5. cells primarily attack bacteria
  4. 6. is a system of thin tubes that runs throughout the body.
  5. 8. cells ingest or clean up the mess of dead cells.
  6. 10. produce antibodies.