Nervous System Crossword

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Across
  1. 9. Having two axons or processes.
  2. 10. predominates in quiet “rest and digest”
  3. 11. Provides immune response to CNS.
  4. 12. Supports & anchors neurons in the PNS.
  5. 13. Provides myelin in PNS.
  6. 15. Voluntary Muscle control
  7. 16. Having only one axon or process.
  8. 18. Provides myelin to neurons in the CNS.
  9. 20. Having many axons or processes.
  10. 21. The nervous system outside the brain and spinal cord.
Down
  1. 1. Involuntary muscle control
  2. 2. Also known as Efferent division. Sends impulses from the CNS to the muscles and glands.
  3. 3. drives the “fight or flight” response in stressful situations.
  4. 4. Also known as Afferent division. Sends impulses from the senses to the CNS.
  5. 5. The fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
  6. 6. Secretes and circulates cerebrospinal fluid.
  7. 7. The delicate connective tissue that supports and binds. together the nervous of the central nervous system.
  8. 8. Support & anchors neurons to surrounding capillaries.
  9. 14. The complex of nerve tissues that controls the body's activities. In vertebrates, it comprises the brain and spinal cord.
  10. 17. The long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.
  11. 19. A short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.