Objective To explore the courser of rat corticospinal tract (CST) in the center neural system and manifestations after spinal cord injury by the Biotin Dextran Amine(BDA) anterograde neuronal tracing technique.

• 目的本研究采用生物素标记葡聚糖(Biotin Dextran Amine,BDA)顺行示踪技术来观察大鼠皮质脊髓束(CST)在中枢神经系统中的走行及脊髓损伤后的表现特征。