One day after the injury, the facial nerve axons were found to be disrupted extensively, although the epineurium was still in continuity. There were degeneration and necrosis of neurons with infiltration of inflammatory cells in the facial nerve. 结果显示,伤后1天面神经轴突广泛断裂,外膜延续性尚好,面神经核内神经元变性、坏死,炎细胞浸润;