cervical nerve


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Related to cervical nerve: Transverse cervical nerve, First cervical nerve

cervical nerve

1. Any of the eight pairs of spinal nerves that originate in the cervical segments of the spinal cord. They are abbreviated C1 to C8. The first cervical spinal nerve (C1) emerges from the spinal canal above the first cervical vertebra; the eighth cervical spinal nerve (C8) emerges from between the seventh cervical vertebra and the first thoracic vertebra. Cervical spinal nerves innervate the neck, shoulders, and arms.
2. A motor branch of the facial nerve (CN VII) that emerges from the lower end of the parotid gland and runs down behind the angle of the jaw to innervate the platysmus muscle.
See also: nerve
References in periodicals archive ?
The pathomechanics of chronic, recurrent cervical nerve root neurapraxia.
Previous communications with branches of cervical nerves have now become communications with the lesser occipital and transverse cervical nerves.
Previously established communications with branches of C2 and C3 have become communications with the greater auricular and transverse cervical nerves.
the cervical branch to the platysma; there are interconnections between the facial nerve and primarily the sensory nerves, including the trigeminal, glossopharyngeal, vagus, and cervical nerves (3)
Perhaps the reason for this can be explained by the greater degree of collateral nerve supply to the angle of the mandible from the lesser occipital nerve posteriorly and from the transverse cutaneous nerve of the neck; both of these nerves derive from the second and third cervical nerves, as does the great auricular nerve.
Sensation is supplied to the area of the ear by the Vth, VIIth, VIIIth, IXth, and Xth cranial nerves and the 2nd and 3rd cervical nerves.