Coordination and control

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Across
  1. 2. The name for where two nerve cells meet
  2. 4. The name for the chemicals which diffuse across the gap between nerve cells
  3. 7. The overall name for the nerve pathway that is taken during these unconscious responses to protect the body:Reflex _____
  4. 10. Made from the brain and the spinal cord
  5. 11. Cells that notice change in the environment and communicate with the brain using nerves e.g. light receptor cells in the eye
  6. 13. A response designed to protect the body from harm. It is automatic and you don't think about it.
  7. 14. The name for the tail of the nerve cell
  8. 16. The name of the final neurone in the pathway which sends the electrical message to a muscle or gland
  9. 17. A part of the nerve cell which contains DNA and controls the functions of the cell
  10. 18. The name for the part of the brain which connects the right and left hemisphere
Down
  1. 1. A part of the nerve cell where chemical reactions take place. It is a jelly like substance
  2. 3. These are either muscles or glands and produce a response e.g. moving an arm away from something hot, or releasing a hormone to get you ready to run away
  3. 5. A part of the nerve cell which controls what enters and leaves the cell
  4. 6. Reflex travel to the spinal cord and do not go to the _____ so they are quicker
  5. 8. The name of the small sacs which carry the chemical to the end of the nerve cell
  6. 9. The process of the body trying to maintain a steady internal environment e.g. body temperature, oxygen levels etc
  7. 11. The name of the neurone which is found in the spinal cord and passes the electrical message on to the next neurone
  8. 12. The name of the first neurone that trasmits the electrical message
  9. 15. The name for the projections at the beginning of the nerve cell which reach out to meet other nerve cells