The Immune System

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Across
  1. 3. A type of immune cell which engulfs and destroys pathogens
  2. 7. The basic structural unit of all living organisms
  3. 9. Another name for the body's second line of defence
  4. 15. Medication used specifically for bacterial infections
  5. 16. A molecule with a specific shape on the surface of the pathogen
Down
  1. 1. The general term for white blood cells
  2. 2. The enzyme within tears
  3. 4. A necessary fluid within your veins
  4. 5. The body's barrier against the external environment
  5. 6. State or quality of being resistant to a particular infection or disease
  6. 8. Tiny hairs within the ear used to prevent the entry of pathogens
  7. 10. Type of white blood cells also responsible for fighting off pathogens
  8. 11. Another word for 'reaction'
  9. 12. Referring to a particular thing only
  10. 13. What do white cells produce?
  11. 14. You are protected