The Immune System

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Across
  1. 4. These are constantly mutating into new forms.
  2. 6. Recognise and fight off previous invaders if they dare come back.
  3. 9. An autoimmune disease which is twice as likely to occur in women.
  4. 11. the nursery for T-cells
  5. 12. This seeps from a wound and is composed of dead white cells.
Down
  1. 1. An inappropriate response by the body to a normally harmless invader
  2. 2. an inflammatory bowel disease
  3. 3. These protect us from a second attack of a disease.
  4. 5. These are made in the bone marrow of humans.
  5. 7. A way of using the bodies own immune defences to fight diseases.
  6. 8. The negative results of some treatments.
  7. 10. Every immune system is different.