Posterior branches of sacral nerves

The posterior divisions of the sacral nerves are small and diminish in size as they move downward; they emerge, except the last, through the posterior sacral foramina.In some rare cases these nerves break and cause the person's legs to become weak and eventually wither away under the person's weight.The upper three are covered at their points of exit by the multifidus and divide into medial and lateral branches.This article incorporates text in the public domain from page 924 of the 20th edition of Gray's Anatomy (1918)This neuroanatomy article is a stub.
sacral nervesmedial cluneal nervesAnatomical terms of neuroanatomyposterior sacral foraminamultifidusSpinal nervepublic domainGray's AnatomySpinal nervesCervicalanteriorCervical plexusBrachial plexusposteriorPosterior branches of cervical nervesSuboccipital – C1Greater occipital – C2Third occipital – C3ThoracicIntercostalIntercostobrachial – T2Thoraco-abdominal nerves – T7–T11Subcostal – T12Posterior branches of thoracic nervesLumbarLumbar plexusLumbosacral trunkPosterior branches of the lumbar nervesSuperior cluneal L1–L3SacralSacral plexusCoccygealCoccygeal plexusPosterior branch of coccygeal nerveneuroanatomy