The phrenic nerves, recurrent laryngeal nerves, radial nerves, and common peroneal nerves were susceptible to injury.

There were 32 ulnar nerves, 65 radial nerves, 24 median nerves, 19 sciatic nerves, 18 common peroneal nerves, 9 femoral nerves, 11 posterior tibial nerves.

HRP was injected into the trunk of the median or radial nerves of the rat. The labeled cells app-eared in the ipsilateral spinal cord and dorsal root ganglion.