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老年性耳聋患病率在65岁以上人群中高达30%—50%,究其原因是因为中耳、耳蜗和神经衰老而发生病变。中耳病变主要与听骨链关节以及韧带发生纤维化或钙化所致耳部微血管退化、耳蜗病变以及全身机能衰竭有关,实质是听觉感受器对声信息敏感下降。感受器又叫螺旋器。它在内耳耳蜗中,螺旋器里毛细胞是感受声音的关键细胞。老年性耳聋发生年龄和进展速度因人而异,有人中年即出现听力减退,其原因是由于耳蜗神经节细胞逐渐萎缩,柯替氏器毛细胞退化性变。因为听觉器官在人的
The prevalence of senile dementia in people over the age of 65 up to 30% -50%, the reason is because of the middle ear, cochlear and neural aging occurs lesions. Middle ear lesions mainly associated with ossicular chain joints and fibrosis of the ligaments or calcification caused by microcirculation of the ear microcirculation, cochlear lesions and systemic failure, in essence, the sensitivity of the auditory sense of hearing loss of acoustic sensors. Receptors, also known as spiral. It is in the inner ear cochlea, hair cells in the spiral are the key cells to sense the sound. Senile deafness of the age and progress rate varies from person to person, some people have hearing loss in middle age, the reason is due to the gradual atrophy of the cochlear ganglion cells, degeneration of the hair cells of the Kochia. Because the auditory organ is human