cervical nerves

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cervical nerves

Etymology: L, cervix, neck, nervus, nerve
the eight pairs of spinal nerves that arise from the cervical segments of the spinal cord, from above the atlas to below the seventh vertebra. The first four supply the head and neck, and the other four mainly innervate the upper limbs, scalp, and back. See also cervical plexus.
References in periodicals archive ?
7] From here the path follows bilateral spinal nerves out via the cervical plexus to the phrenic nerve which arises from the third, fourth and fifth cervical spinal nerve rami.
The cervical plexus consists of the ventral primary divisions of the first four cervical spinal nerves and gives rise to (1) the muscular branches, including the phrenic nerve and nervus descendens cervicalis, as well as (2) the sensory branches, including the lesser occipital, transverse cutaneous, supraclavicular, and great auricular nerves.
The cervical plexus is formed from the ventral rami of the upper four cervical spinal nerves, supplying motor branches to the diaphragm and neck muscles, and sensation for much of the skin and integument of the neck.