鼓室薄片
Lamella tympanica
定义
骨螺旋板（lamina spiralis ossea）是一个双层骨性架状或凸缘状结构（前庭板与鼓室板），自蜗轴向耳蜗管内腔突出，与耳蜗管相同，绕蜗轴旋转两圈又四分之三圈。
參考資料
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
