The distribution of HRP labeled primary afferent fibers of the pelvic nerve was similar to that of BSI B 4 HRP in the lumbosacral spinal cord,however,BSI B 4 HRP labeled fibers in the DCN were far less than that of the HRP group.

• HRP和BSI B4 HRP标记的盆神经初级传入纤维在腰骶段脊髓内的分布相似 ,且均向后连合核投射 ,但BSI B4 HRP注入例的标记量明显少于HRP实验组。