Orbicularis oris muscle
Kissing muscles / From Wikipedia, the free encyclopedia
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In human anatomy, the orbicularis oris muscle is a complex of muscles in the lips that encircles the mouth.[2] It is not a true sphincter, as was once thought, as it is actually composed of four independent quadrants that interlace and give only an appearance of circularity.[3]
Quick Facts Details, Origin ...
Orbicularis oris | |
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Details | |
Origin | Maxilla and mandible |
Insertion | Skin around the lips |
Artery | Inferior labial artery and superior labial artery. |
Nerve | Cranial nerve VII, buccal branch |
Actions | It is sometimes known as the kissing muscle[1] because it is used to pucker the lips. |
Identifiers | |
Latin | musculus orbicularis oris |
TA98 | A04.1.03.023 |
TA2 | 2073 |
FMA | 46841 |
Anatomical terms of muscle |
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It is also one of the muscles used in the playing of all brass instruments and some woodwind instruments. This muscle closes the mouth and puckers the lips when it contracts.