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1·The trochlear nerve could be divided into three types in the section of CS: cross-over, convex and straight.

滑车神经在海绵窦分三型，即交叉型、凸型和直型。

2·Objective: To obtain the normal image and sectional anatomical data of the oculomotor nerve, the trochlear nerve and the trigeminal nerve through the comparative study between MRI and plastination.

目的：对动眼神经、滑车神经、三叉神经进行塑化切片与MRI对照研究，获得正常影像和断层解剖资料。