Jisho

×
こうりんきん 口輪筋
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Noun
1. orbicularis oris muscle​
Wikipedia definition
2. Orbicularis oris muscle​In human anatomy, the orbicularis oris muscle is the sphincter muscle around the mouth. "Orbicularis Oris is a complex of muscles in the lips that encircle the mouth; until recently it was misinterpreted as a sphincter, or circular muscle, but it is actually composed of four independent quadrants that interlace and give only an appearance of circularity. " It is also one of the muscles used in the playing of all brass instruments and some woodwind instruments.
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