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为了解盆内脏器感觉信息的传递道路，用结合生物素的葡聚糖胺（BDA）作为顺行追踪剂，研究了大鼠腰骶髓中间带外侧核向脑桥臂旁核的投射．将BDA注射于中间带外侧后，顺行标记的轴突终末出现于双侧的臂旁核，同侧略多．大量的BDA标记的轴突终末出现于臂旁外侧核的外侧内核和外侧
To understand the pathways of organ sensory information in the pelvis, projection of the lateral lumbosacral medulla oblongata to the parabrachial nucleus of the rat’s lumbosacral medulla was studied using dextran amine (BDA) biotinylated tranexamic tracer. After injection of BDA into the medial zone, the terminal axonal markers marked by anterograde appeared in the parabrachial nucleus on both sides and slightly on the same side. A large number of BDA-labeled axons eventually appear outside the lateral nucleus and lateral of the lateral parabrachial nucleus