The Nervous System

Edit Answers
123456789101112131415161718192021
Across
  1. 1. extends from the brain down the back
  2. 5. junction between axon terminals of one neuron and dendrites of another
  3. 11. transmission of characteristics from parents to offspring
  4. 12. system that prepares the body for action
  5. 13. thin fibers branching out from the cell body
  6. 14. nervous system that regulates the body's vital functions
  7. 16. nervous system that transmits sensory messages to the CNS
  8. 17. chemicals that are stored in sacs in the axon terminals
  9. 19. carries messages away from the cell
  10. 20. nervous system made up of nerve cells that send messages between the CNS and parts of the body
  11. 21. basic building blocks of heredity
Down
  1. 2. system that calms the body after emergencies
  2. 3. white, fatty substance that insulates and protects the axon
  3. 4. regulates our internal functions
  4. 6. type of neurotransmitter primarily involved in motor behavior
  5. 7. small fibers branching out from axons
  6. 8. simple, automatic response to something
  7. 9. nerve cells
  8. 10. produces energy that fuels the activity of the cell
  9. 15. nervous system consisting of the brain and spinal cord
  10. 18. four key areas are the thalamus, hypothalamus, limbic system and the cerebrum