superior semicircular canal
/suːpˈiəɹɪə mˌɛsəntˈɛɹɪk ˈɑːtəɹi/
n
English · superior semicircular canal中文 · 上骨半规管Español · conducto semicircular superiorFrançais · canal semi-circulaire antérieur
意味：Vertical canal perpendicular to the temporal bone; it monitors head movements to ensure that equilibrium is maintained.