Nervous System

How do nerves regenerate themselves?
Answered by Science Channel
  • Science Channel

    Science Channel

  1. Scientists don't completely understand how nerves regenerate. When nerves grow they secrete nerve growth factor (NGF), which attracts other nerves nearby to connect and grow. If surgeons place the ends of severed peripheral nerves close together, the nerve ends will establish connections and stimulate axon growth. Nerve regeneration happens most often within the autonomic and peripheral nervous systems. Regeneration is more limited in the central nervous system, but recovery from head traumas and spinal cord injuries shows that some regeneration is possible.

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