中耳解剖结构复杂、精密、细小 ,大部分结构埋藏于颞骨之中 ,面神经、听小骨、半规管均为重要组织结构及手术标志 ,术中稍有不慎 ,损伤上述结构 ,将产生严重的并发症。因此 ,对中耳鼓室局部解剖结构进行一定的分析研究 ,找出隐藏在各手术标志之间距离的变化规律 ,能为手术提供 The middle ear anatomy is complex, precise and small, most of the structures are buried in the temporal bone. The facial nerve, ossicles and semicircular canal are all important tissue structures and surgical signs. The surgery is slightly inadvertently damaged, resulting in serious complications disease. Therefore, the local anatomy of the tympanic cavity of the middle ear to conduct a certain analysis to find out the hidden changes in the distance between the signs of surgery, can provide surgery