膀ぼう胱こう括かつ約やく筋きんMeaningsNoun1. sphincter muscle of urinary bladderKanji used膀bladder胱bladder括tie a loop around約promise筋muscleComposed of膀ぼう胱こうurinary bladder; urinary cyst; vesica urinaria; bladderNoun括かつ約やく筋きんsphincter (muscle); constrictorNoun