Figure 2.

Lesion verification. A, Nissl staining of a longitudinal section of the dorsal aspect of the spinal cord at the level of the spinal canal and at ventral aspects. Red arrows indicate the injury site. B, A transverse section of the spinal cord constructed from the longitudinal slices. Numbers correspond to the photographs shown in A. Note that the lower part of the spinal cord on the injury side, which mainly contains spinothalamic tracts, was not damaged by the injury. This injury was similar in all animals.