The lesser petrosal nerve comes from the tympanic plexus running between cochlear window and vestibular window, over recess of tensor sympani muscle and toward otogaglion .
岩小神经由鼓室神经丛发出后，穿过耳蜗窗与前庭窗之间，越过鼓膜张肌窝，走向耳神经节。
2
Conclusions :The radiation injuries of hair cells and nerve endings on cochlear and vestibular organs were the reason for their dysfunction.
结论：放射线对耳蜗和前庭毛细胞和神经末稍的损伤是造成其功能障碍的主要原因；
3
Occasionally, the patient may experience vertigo due to involvement of the vestibular component of the VIIIth nerve.