The cervical spinal nerve 1 (C1) is a spinal nerve of the cervical segment."Nervous System — Groups of Nerves" from spinalcordinjuryzone.com. Published February 23, 2004. Archived Dec 23, 2011. Retrieved June 12, 2018. C1 carries predominantly motor fibres, but also a small meningeal branch that supplies sensation to parts of the dura around the foramen magnum (via dorsal rami).
It originates from the spinal column from above the cervical vertebra 1 (C1).
The dorsal root and ganglion of the first cervical nerve may be rudimentary or entirely absent.
Muscles innervated by this nerve are: Geniohyoid muscle- through hypoglossal nerve Thyrohyoid muscle – through hypoglossal nerve Rectus capitis anterior muscle Longus capitis muscle (partly) Rectus capitis lateralis muscle Splenius cervicis muscle (partly) Rectus capitis posterior major muscle levator scapulae muscle (partly) Omohyoid – through ansa cervicalis Sternohyoid – through ansa cervicalis Sternothyroid - through ansa cervicalis
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