Body System

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Across
  1. 2. a bacterial infection caused by Clostridium tetani
  2. 7. endocrine glands situated on the kidneys
  3. 10. a type of white blood cell that consumes pathogens
  4. 12. microscopic, single-celled organisms
  5. 13. the cells on which a hormone acts
  6. 15. the chemical store of glucose in the liver and muscles
  7. 18. all the endocrine glands of the body
  8. 19. the nerve path way operating in a reflex action
  9. 21. the organism a parasite lives in
  10. 22. the electrical message carried by a nerve cell
  11. 24. the space between two neurones
  12. 26. chemical substances that act as messengers in the body
  13. 27. an organic catalyst
  14. 28. a single cell with a tough skin that fungi use to spread
  15. 29. an early antibiotic
Down
  1. 1. anything that causes our body to stop working properly
  2. 3. common name for the hormone epinephrine
  3. 4. the lower half of the brain system
  4. 5. an organism that causes diseases
  5. 6. glands that produces hormones
  6. 8. the nerve that carries messages to the brain from the retina at the back of the eye
  7. 9. the system in our body that fights infections
  8. 11. the insulating layer that covers a neurone
  9. 14. a nerve fibre that sends nerve impulses away from the cell body
  10. 16. the part of the neurone that contains the nucleus
  11. 17. special cells that detect stimuli
  12. 20. organelles where cellular respiration occurs
  13. 23. all the chemical reactions occurring in the cells
  14. 25. a nerve cell