Cervical spinal nerve 2

Cervical spinal nerve 2

The plan of the cervical and brachial plexuses. (Cervical spinal nerve 2 labeled at upper left.)

The Cervical spinal nerve 2 (C2) is a spinal nerve of the cervical vertebrae. It originates from the spinal cord and is part of the peripheral nervous system. The C2 nerve supplies parts of the neck, scalp, and behind the ear.

Structure

The C2 nerve emerges from the spinal column from the second cervical vertebra, known as C2 vertebra or the axis. It is one of the eight pairs of cervical nerves that arise from the cervical region of the spinal cord.

Function

The C2 nerve has both sensory and motor functions. It provides sensory innervation to the skin of the neck and scalp behind the ear. It also provides motor innervation to certain neck muscles.

Clinical significance

Damage to the C2 nerve can result in loss of sensation or movement in the areas it supplies. This can occur due to trauma, infection, or neurological disorders.

See also

• Cervical vertebrae
• Spinal nerve
• Peripheral nervous system

External links

• Cervical spinal nerve 2 at AnatomyExpert.com

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