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耳聋大致可分为三类:传导性耳聋、感音神经性耳聋及混合性耳聋。1.传导性耳聋是指外耳、中耳部分出现病变或受阻,致使外界声音在传入内耳途中发生障碍,声音强度减弱。因为有此种障碍者的内耳正常,所以听力损失并不大。2.感音神经性耳聋是指外耳、中耳声音传导系统正常,但耳蜗或听觉神经系
Deafness can be roughly divided into three categories: conductive deafness, sensorineural deafness and mixed deafness. 1. Conductive deafness refers to the external ear, middle ear lesions or obstruction, resulting in the external sound of the way into the inner ear obstacles, the sound intensity weakened. Because there is such a normal inner ear, so hearing loss is not large. 2 sensorineural deafness refers to the external ear, the middle ear sound conduction system is normal, but the cochlear or auditory nervous system