主要分布于脑桥、小脑、苍白球壳核、延髓白质纤维束，脊髓外侧束，且与髓鞘变性脱失的分布一致。
Their main distributions were transverse fibers of the basis pontine, the white matter of the cerebellum, striatopallidal fibers and lateral column of the spinal cord.
同时在苍白球的内侧缘和尾壳核的近尾侧的背外侧亦有少量的SP阳性纤维呈背腹方向分布。
There was a little amount of SP fiber in the inner part of globus pallidus and outer dorsal part of caudate-putamen.
目的：探讨CT在帕金森病丘脑腹外侧核及苍白球腹后部毁损术中的定位作用。
Objective: to probe the role of ct in guided thalamotomy and posteroventral pallidotomy for Parknson's disease.
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