Jaymee's crossword

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Across
  1. 2. a bacterial infection caused by clostridium tetani
  2. 3. a cell that viruses have invaded
  3. 6. part of the brain where the spinal cord enters the skull
  4. 7. chemical substances that act as messengers in the body
  5. 9. isolation to prevent spread of disease
  6. 10. part of the brain that is responsible for coordination and balance
  7. 13. nerve fibre that sends nerve impulses away from cell body
  8. 16. a disease that can spread
  9. 18. portion of the brain that regularly checks the internal environment of the body
  10. 19. all the chemical reactions occurring in the cells
  11. 20. an early antibiotic
  12. 21. anything that causes our body to stop working properly
  13. 25. a substance that kills bacteria or prevents the growth
  14. 26. all the endocrine glands of the body
  15. 28. part of the neurone that contains the nucleus
Down
  1. 1. an organism that causes disease
  2. 4. part of nervous system that slows the body down and controls it when resting
  3. 5. a pathogen about one hundred times smaller than bacterium
  4. 8. a viral disease that causes a rash
  5. 11. the electrical message carried by a nerve cell
  6. 12. microscopic single celled organisims
  7. 14. the system in your body that fights infections
  8. 15. any factor that stimulates a receptor and brings about a response
  9. 17. the common name for hormone epinephrine
  10. 19. the lower half of the brain
  11. 22. a single cell with a tough skin that fungi use to spread
  12. 23. the organism a parasite lives in
  13. 24. the cells on which a hormone acts
  14. 27. the nerve that carries messages to the brain from the retina at the back of the eye