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鼠的耳蜗在出生时未发育完全,出生后其功能及结构的进行性发育使鼠成为研究哺乳动物听力发育的有用模型。哺乳动物的血管纹是占据耳蜗侧壁的重要结构,成年的血管纹含有边缘细胞、间质细胞及基底细胞。血管纹产生耳蜗内电位。从出生后第1周之末至第3周之初耳蜗内的电位量快速增加。本文目的是检查鼠在发育过程中,血管纹的超微结构,以研究功能变化与结构改变的关系。在全麻下对不同龄(从出生至51天)的幼鼠测量耳蜗内电位,
The mouse cochlea is not fully developed at birth and its development of function and structure after birth makes the rat a useful model for studying mammalian hearing development. Mammalian vascular pattern occupies the important structure of the cochlear wall. The adult vascular pattern contains marginal cells, interstitial cells and basal cells. Vascular striae produce intracochlear potential. The amount of potential in the cochlea rapidly increases from the end of the first week of life to the beginning of the third week. The purpose of this article is to examine the ultrastructure of vascular patterns during the development of the mouse in order to study the relationship between functional changes and structural changes. Cochlear potentials were measured under general anesthesia in young rats of different ages (from birth to 51 days)