The Nervous System

123456789101112
Across
  1. 1. Nerve cell that transmits electrical impulse from a receptor to the central nervous system.
  2. 4. A bundle of neurones connected to brain or spinal cord
  3. 7. Change in the environment
  4. 9. Gap between neurones
  5. 10. Message that passes along a neurone
  6. 11. nerve cell that transmits electrical impulse from the central nervous system to an effector.
  7. 12. This effector will contract in response
Down
  1. 2. A neurone in the central nervous system
  2. 3. Cells that detect stimuli
  3. 5. This effector will secrete hormones in response
  4. 6. A cell that responds to an impulse
  5. 8. Nerve cells