Last Updated
：2026/01/03
オトガイ筋
Hiragana
おとがいきん
Kanji
頤筋
Noun
Japanese Meaning
オトガイ筋：下唇の下から顎（おとがい）にかけて存在し、下唇や顎の皮膚を前上方に引き上げて、あごのしわを作ったり、下唇を突き出したりする表情筋の一つ。英語の "mentalis muscle" に相当する。
Easy Japanese Meaning
あごの下のまんなかあたりにある小さなきんにくで、したくちびるをうごかすはたらきがある
Chinese (Simplified) Meaning
颏肌 / 位于下巴前部、负责提升下唇和皱缩颏部的肌肉
Chinese (Traditional) Meaning
頦肌 / 位於下巴前方的面部肌肉 / 使下唇前突、提升下巴皮膚的肌肉
Korean Meaning
턱끝 부위의 근육 / 턱끝 피부를 주름지게 하고 아랫입술을 앞으로 내미게 하는 근육
Vietnamese Meaning
Cơ cằm (cơ mentalis). / Cơ nhỏ ở cằm giúp đẩy nhô môi dưới và làm nhăn da cằm.
Sense（1）
a mentalis muscle
（ romanization ）
（ hiragana ）
Quizzes for review
See correct answer
オトガイ筋
See correct answer
He is doing special exercises to strengthen his mentalis muscle.
He is doing special exercises to strengthen his mentalis muscle.
See correct answer
彼はオトガイ筋を鍛えるために特別なエクササイズを行っています。
Japanese - English
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