The rotation of stereociliary bundles and extra stereocilia on the outer hair cell as well as the extra inner hair cell are induced by genetic variation. 外毛细胞静纤毛束转位，静纤毛副毛与列外内毛细胞是遗传变异引起的。
Located in the fluid-filled part of the inner ear called the cochlea, these outer hair cells sport tufts of hair-like cilia that project into the fluid. 位于内耳内充满液体被称作耳蜗的部分内，外毛细胞运动其投射入液体内的毛状纤毛丛。
