首先，断裂的神经纤维远侧端全部和近侧端的一部分发生 沃勒 ( Wallerian )变性，包括轴突肿胀断裂，崩解成球状小体；髓鞘脱失、崩解；巨噬细胞增生吞噬清除这些崩解产物。
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Wallerian degeneration is named after Augustus Volney Waller.
沃勒变性是以奥古斯都·沃尔尼·沃勒命名的。
Cerebral infarctions can be accompanied by Wallerian degeneration of descending tracts, as shown here at high power in the brainstem.
脑干高倍镜显示，脑梗死可同时伴有下行束沃勒变性。
Objective:To investigate existence and regularity of changes of Schwann cell apoptosis in Wallerian degenerated sciatic nerve of rat, and evaluate its time-related feature.
目的：探讨成年大鼠坐骨神经创伤性华勒氏变性中雪旺细胞凋亡的存在及其时相性变化规律。
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