A dorsal root ganglion of a spinal nerve (40X)

A dorsal root ganglion of a spinal nerve. Image copyright: University of Oslo, CC BY-NC-ND 4.0. (Tissue stain: H+E).

This image shows a dorsal root ganglion. It is a cluster of neurons (a ganglion) in the dorsal root of a spinal nerve. The cell bodies of sensory neurons known as first-order neurons are located in the dorsal root ganglia.

Published August 10th 2022, updated March 2nd 2023.