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depressor anguli oris muscle (anatomy) - General Practice Notebook (140 words) |
 | The depressor anguli oris muscle is one of the muscles of the mouth. |
| It arises from the lateral surface of the mandible posterior to the oblique line. |
| Depressor anguli oris is innervated by the mandibular branch of the facial nerve (VII). |
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Depressor anguli oris muscle - Wikipedia, the free encyclopedia (376 words) |
| The Depressor anguli oris (Triangularis) arises from the oblique line of the mandible, whence its fibers converge, to be inserted, by a narrow fasciculus, into the angle of the mouth. |
| At its origin it is continuous with the Platysma, and at its insertion with the Orbicularis oris and Risorius; some of its fibers are directly continuous with those of the Caninus, and others are occasionally found crossing from the muscle of one side to that of the other; these latter fibers constitute the Transversus menti. |
| It is a muscle of facial expression associated with frowning. |
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