Nerves arising from S1

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- See Innervation:

  Gluteal, Inferior:                 L5, S1, S2
  Gluteal, Superior:             L4, L5, S1
  Peroneal Nerve:               L4, L5, S1, S2
  Posterior Femoral:                     S1, S2, S3
  Sciatic:                       L4, L5, S1, S2, S3
  Tibal:                         L4, L5, S1, S2, S3

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- Exam: w/ lesion of to S1 - S2 level of spinal cord there is weakness of hip abductors and ankle plantar flexors and toe flexors;

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The significance of an absent ankle reflex.

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