Nervous System Vocabulary

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Across
  1. 2. system that increases the production of hormones
  2. 4. special structures that detect stimuli
  3. 6. nerve cell
  4. 7. consists of organs and tissues that release chemical messages
  5. 9. a quick automatic response to a stimulus
  6. 10. made up of the brain and spinal cord
  7. 14. space between neurons
  8. 15. structure of neurons protected by vertebrae
  9. 16. controls muscle movement and regulates balance
  10. 17. tympanic membrane
  11. 18. gathers, processes, and responds to the environment
  12. 19. causes a response
  13. 20. reaction to a stimulus
  14. 21. receptors that detect colors
Down
  1. 1. carried in bloodstream and produced by glands
  2. 2. contains sensory and motor neurons
  3. 3. controls involuntary functions
  4. 5. area of the eye that detects light
  5. 8. controls memory, language, and thought
  6. 11. receptors that detect light
  7. 12. system that decreases the production of hormones
  8. 13. detects or senses the environment