These cell bodies are referred to as ganglia of the posterior root.

They are outside the bony vertebrae, and not inside as is the gray matter of the spinal cord and the ganglia of the posterior root.

The posterior end is connected to the squama by two roots, the anterior and posterior roots.

The first lower molar has four roots, including two small accessory roots located between larger anterior and posterior roots.

The posterior root of the zygomatic process extends for some distances past the external auditory meatus as a well-defined ridge.

Pathological changes can be noticed as well in the posterior roots of the cord and, to lesser extent, in peripheral nerves.

It passes posteriorly to descend the medulla passing in front of the posterior roots of the spinal nerves.

Stimulation of the posterior roots caused pain, and stimulation of the anterior - movement.

One procedure was carried out by first severing posterior roots of the spinal nerve leading to the leg.

Dorsal root ganglia, posterior roots and peripheral nerves are normal.