The Peripheral Nervous System

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Across
  1. 4. where two neurons meet
  2. 5. glial celss which secrete and circulate cerebrospinal fluid
  3. 6. system responsible for resting state
  4. 9. system responsible for involuntary muscle control
  5. 10. contains the nucleus
  6. 12. neurons with one dendrite, a cell body, and a single axon
  7. 13. part of the neuron that serves as a passageway for nerve impulses and ends in terminals
  8. 14. system responsible for voluntary muscle control
  9. 15. neuron carrying information away from CNS to muscle
  10. 17. an electrical signal that travels along the neuron
  11. 20. neuron carrying information toward the CNS
  12. 22. glial cells which provide immunity to the CNS
  13. 23. indentations along the myelin sheath which speed up impulses
Down
  1. 1. system responsible for fight or flight
  2. 2. glial cells which support and anchor neurons in the PNS
  3. 3. chemical that carries the signal across the synaptic cleft
  4. 7. division of the nerous system containing brain and spinal cord
  5. 8. mechanism restoring resting potential of neuron
  6. 11. neurons with two dendrites, a cell body and a single axon
  7. 15. neurons with many dendrites, a cell body and a single axon
  8. 16. part of the neuron that receives impulses
  9. 18. division of the nervous system with sensory and motor neurons and sense organs
  10. 19. glial cells which support and anchor neurons in CNS
  11. 21. glial cells which provide myelin insulation to axons of neurons in PNS