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Dorsal Nerve Root Ganglia

Dorsal Root Ganglion Anatomy
Dorsal Root Ganglion (Malanowski et al)

Lesion in Dorsal root ganglion of a spinal nerve in the neck is most likely to lead to what type of loss?

A. Sensory
B. Motor
C. Sympathetic
D. Parasympathetic
E. All of the above


The functions of dorsal root ganglia are all associated with the perception of sensations. These include:

  • Nociception
  • Perception of mechanical stimulus upon compression
  • First processing center of the sensory information
  • Role in reflex action

The clinical significance of dorsal root ganglion includes the treatment of chronic pain according to the gate-therapy or via complete resection of the ganglion. The ganglion also serves as a source or reservoir of several viruses such as herpes simplex virus.



Malinowski M.N., Bremer N.J., Kim C.H. (2019) Dorsal Root Ganglion Stimulation. In: Abd-Elsayed A. (eds) Pain. Springer, Cham. https://doi.org/10.1007/978-3-319-99124-5_189