雏鸡耳蜗乙酰胆碱脂酶的定位观察  

Observation of AChE Iocation in chicken cochla

作　　者：聂国辉[1] 汪吉宝[1] 李桂榕[1] 

机构地区：[1]同济医科大学附属协和医院耳鼻咽喉科,430022

出　　处：《临床耳鼻咽喉科杂志》1997年第5期198-199,208,共3页Journal of Clinical Otorhinolaryngology

摘　　要：应用乙酰胆碱酯酶（AChE）组织化学方法，观察雏鸡耳蜗基底乳头铺片及冰冻切片中AChE的活性分布。发现AChE阳性纤维主要分布于耳蜗上纤维软骨板外侧，纵行走向下纤维骨板方向，发出放射状分支支配毛细胞。高、矮毛细胞底部，以及支配它们的部分神经纤维末梢均有阳性棕色颗粒。毛细胞下有两种类型的末梢：一种是矮毛细胞底部大的杯状末梢，另一种位于高毛细胞底部多个不规则形状的小末梢。并对这种分布特征及其意义进行讨论。The efferent auditory innervation of the chicken was investigated by means of AChE histochemical stain. The localization of AChE in the chicken was observed by use of mounted and freezing microtome in basilar papilla. The positive fibers of AChE stain were distributed over the lateral aspect of the superior cartilaginous plate of the basilar papilla. Radical fibers leave this lontigudinal boundle to supply the hair cells. Two types of efferent synapsis could be distinguished:short hair cells with large cup-like efferent terminal,and tall cells with small, irregular terminal.The characteristics and the significance of experimental study are also discussed.

关 键 词：雏鸡 耳蜗基底乳头 乙酰胆碱脂酶 听毛细胞 神经 

分 类 号：R322.923[医药卫生—人体解剖和组织胚胎学] R329.26[医药卫生—基础医学]