轴突内可见丝状的神经原纤维及线粒体，轴突外包有髓鞘，为明暗相间的同心圆板层结构。
Filamentous neurofibrils and mitochondria were observed in axons. Axons were enveloped by myelin sheath, presented alternately dark and bright lamellae concentric configuration.
腓肠神经半薄切片未见明显洋葱球样结构形成，可见有髓纤维密度明显减少，大量薄髓鞘有髓神经纤维和有髓神经纤维再生簇形成。
Semithin transverse sections of sural nerve showed a decreased density of large myelinating fibers and a large number of clusters of mostly thinly myelinated axons.
结果：与对照组相比，实验组再生有髓神经纤维数目较多、轴突较粗且髓鞘较厚。
Result:The regenerated nerves of decimeter wave sides had more medullated fibers, larger mean axons diameters and thicker myelin sheath than those of control sides.
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