Stem cells injected into the inner ear survived in half of the injured rats, where they migrated away from the site of injection toward the injured region within the inner ear. 干细胞在半数注射后的大鼠耳蜗内存活，它们在内耳内自注射部位向受损区域迁移。
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。
