肛門括約筋 こうもんかつやくきん Meanings Noun anal sphincter Kanji 肛 anus. Read as コウ. 門 gate. Read as モン. 括 tie up. Read as カツ. 約 promise. Read as ヤク. 筋 muscle. Read as キン. Words containing 肛門括約筋 内肛門括約筋 (ないこうもんかつやくきん) internal anal sphincter (muscle) Word lists Anatomy Jinuma: Japanese Dictionary · Word lists