Spinal Ganglion of Second Cervical Nerve

Description

The spinal ganglion (dorsal root ganglion or posterior root ganglion) is a sensory ganglion found at the proximal end of the posterior root of each spinal nerve.

The spinal ganglion of the second cervical nerve conveys sensory information from the periphery into the dorsal horn of the first cervical spinal segment of the spinal cord.

It contains cell bodies or nuclei of the afferent nerve fibers, which are derived from neural crest cells and comprise pseudounipolar neurons. The afferent neurons convey cutaneous somatic sensory signals, such as touch, temperature and pain, from the skin over the scalp to the coronal suture and behind the auricle. In addition, visceral sensations from glands and blood vessels from the skin in the same scalp region are also conveyed to the central nervous system.