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. 干細胞在半數注射后的大鼠耳蝸內存活，它們在內耳內自注射部位向受損區域遷移。
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. 位于內耳內充滿(mǎn)液體被稱(chēng)作耳蝸的部分內，外毛細胞運動(dòng)其投射入液體內的毛狀纖毛叢。
