脊神经前根的传入纤维

• 作 者: 李乐年
• 机 构: 徐州医学院人体解剖学教研室
• 出 处: 徐州医学院学报
• 发表日期: 1987年02期
• 关键词: 前根 脊神经 根细胞 脊髓 后索 感受野 纤维 无髓神经纤维 交感神经 脊髓节段

脊神经前根中存有大量的感觉传入纤维,这些传入纤维起源于前根细胞和脊神经节细胞。前根细胞的中枢突可经前根传入脊髓,也可经后根传入脊髓,其周围突随交感神经或者随脊神经分布于周围感受野。前根传入纤维传入脊髓后,在后索上升,终止于后索核非簇团细胞。关于前根细胞的来源问题,提出了由脊神经节细胞迷离到前根中去的假想。

Presence of spinal nerve root in a large number of sensory afferent fibers, these afferent fibers originated in pre-root cells and spinal ganglion cells. Before the root of the root of the central nerve can be introduced into the spinal cord through the anterior root, can also be introduced into the spinal cord via the posterior root, the sudden surrounding sympathetic or along the spinal nerve distribution in the surrounding receptive field. After the afferent fibers are introduced into the spinal cord, they rise in the posterior cord and terminate in non-clustered posterior nucleus. Concerning the origin of pre-root cells, a hypothesis was proposed that the dorsal root ganglion cells are blurred into the anterior root.