Nerves arising from S1


- 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



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



The significance of an absent ankle reflex.



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Monday, December 5, 2011 4:31 pm