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  2. Cervical spinal nerve 4 - Wikipedia

    en.wikipedia.org/wiki/Cervical_spinal_nerve_4

    Cervical spinal nerve 4, also called C4, is a spinal nerve of the cervical segment. It originates from the spinal cord above the 4th cervical vertebra (C4). It contributes nerve fibers to the phrenic nerve , the motor nerve to the thoracoabdominal diaphragm .

  3. Cervical spinal nerve 3 - Wikipedia

    en.wikipedia.org/wiki/Cervical_spinal_nerve_3

    The cervical spinal nerve 3 (C3) is a spinal nerve of the cervical segment. [1] It originates from the spinal column from above the cervical vertebra 3 (C3). References

  4. Spinal nerve - Wikipedia

    en.wikipedia.org/wiki/Spinal_nerve

    This is true for all spinal nerves except for the first spinal nerve pair (C1), which emerges between the occipital bone and the atlas (the first vertebra). [3] Thus the cervical nerves are numbered by the vertebra below, except spinal nerve C8, which exists below vertebra C7 and above vertebra T1.

  5. Cervical plexus - Wikipedia

    en.wikipedia.org/wiki/Cervical_plexus

    The cervical plexus is a nerve plexus of the anterior rami of the first (i.e. upper-most) four cervical spinal nerves C1-C4. [1] [2] [3] [4] The cervical plexus ...

  6. Posterior branches of cervical nerves - Wikipedia

    en.wikipedia.org/wiki/Posterior_branches_of...

    The posterior divisions of the lower five cervical nerves divide into medial and lateral branches. The medial branches of the fourth and fifth run between the Semispinales cervicis and capitis, and, having reached the spinous processes, pierce the Splenius and Trapezius to end in the skin.

  7. Cervicocranial syndrome - Wikipedia

    en.wikipedia.org/wiki/Cervicocranial_syndrome

    The body is innervated by spinal nerves that branch off from the spinal cord. [18] This innervation enables the brain to receive sensory inputs and send motor outputs. There are 8 cervical spinal nerves of the peripheral nervous system. Cervical spinal nerves C1, C2 and C3 help control the movements of the head and neck.

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