Greater occipital nerve

It supplies sensation to the scalp at the top of the head, over the ear and over the parotid glands.It ascends after emerging from below the suboccipital triangle beneath the obliquus capitis inferior muscle.[1] The greater occipital nerve supplies sensation to the scalp at the top of the head, over the ear and over the parotid glands.[citation needed] Problems with the greater occipital nerve may be a cause of cervicogenic headaches.A common site, and usually misdiagnosed area of entrapment for the greater occipital nerve, is at the obliquus capitis inferior muscle.
Semispinalis capitisAnatomical terms of neuroanatomyspinal nervedorsal primary ramuscervical spinal nerve 2cervical vertebraesemispinalis muscleposteriorvertexparotid glandscervical spinal nerve 3lesser occipital nervesuboccipital triangleobliquus capitis inferior musclefasciacervicogenic headachesoccipital neuralgiasnerve blocktension headachesSaundersWayback MachineSpinal nervesCervicalanteriorCervical plexusBrachial plexusPosterior branches of cervical nervesSuboccipital – C1Third occipital – C3ThoracicIntercostalIntercostobrachial – T2Thoraco-abdominal nerves – T7–T11Subcostal – T12Posterior branches of thoracic nervesLumbarLumbar plexusLumbosacral trunkPosterior branches of the lumbar nervesSuperior cluneal L1–L3SacralSacral plexusPosterior branches of sacral nervesMedial cluneal nervesCoccygealCoccygeal plexusPosterior branch of coccygeal nerve