Objective: To explore the detailed clinical anatomy of trigeminal nerve sensory root (TNSR) in order to establish a new tractotomy for the treatment of trigeminal neuralgia (TN) .

目的：探讨三叉神经感觉根（TNSR）的解剖学结构，及其表层神经纤维束切断术治疗三叉神经痛（TN）的可行性。

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Small-diameter neurons in the dorsal root ganglion (DRG) convey thermal and nociceptive sensory signals to the spinal cord.

背根神经节中小细胞神经元向脊髓传递温觉和伤害性信息的感觉传递。

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OBJECTIVE: To observe the protective effect of Schwann cell-derived neurotrophic factor on the high injury of peripheral nerve-induced apoptosis of sensory neurons in spinal dorsal root ganglia.

目的：观察许旺细胞源神经营养因子对周围神经高位损伤所致脊髓背根节感觉神经元死亡的保护作用。

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