Immunity

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Across
  1. 2. A microscopic organism; includes pathogens.
  2. 4. SYSTEM The body’s coordinated defence against pathogens.
  3. 7. Introducing an antigen to stimulate immunity.
  4. 9. The most common type of white blood cell, part of the first response.
  5. 10. A phagocytic white blood cell that engulfs pathogens.
  6. 11. A microorganism that causes disease (e.g., bacteria, viruses)
  7. 13. Non‑specific response that causes swelling, heat, and redness.
  8. 14. BLOOD CELLS Key cells of the immune system responsible for defence.
  9. 15. Fluid that circulates in the lymphatic system and transports immune cells.
  10. 16. NODE Site where immune cells accumulate and respond to pathogens.
Down
  1. 1. A structure on a cell that recognises specific molecules/antigens.
  2. 3. Proteins produced by B‑cells that bind to antigens.
  3. 5. Immune cells involved in cell-mediated immunity.
  4. 6. — A foreign molecule that triggers an immune response.
  5. 8. The ability to resist disease through defence mechanisms.
  6. 12. Immune cell type including B‑cells and T‑cells.