Horseradish peroxidase was injected into C_(6,7) or L_(5,6) spinal cord in 21 adult cats and the morphology and distribution of the labeled cells in the dorsal columu nuclei (DCN) were studied.

• 于21只猫之颈髓6、7或腰髓5、6内注射HRP,观察了后索核内标记细胞之分布及形态。