geniculate ganglion 它是面神经的特殊内脏感觉纤维——味觉纤维的胞体所在的神经节。具体位置在颞骨岩部内，面神经管起始部弯曲处。
结果：（1）面神经膝状神经节（GG）多位于外半规管层面。
Results:(1)The geniculate ganglion (GG) was in the layer of lateral semicircular canal .
结果：8.3%面神经迷路段和膝状神经节骨管型缺如，面神经裂孔到膝神经节的距离变异较大。
Result: It is demonstrated that 8.3 % geniculate ganglion and labyrinth segment of facial nerve Variation which distance from hiatus of facial nerve to geniculate ganglion is distinct.
结论熟悉上鼓室前隐窝的解剖特征及其重要内容如膝状神经节、匙突、面神经水平段之间的关系至关重要。
Conclusion It is important for otologists to know the anatomic structure of AER and its relationship with facial nerve and geniculate ganglion.
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