Facial muscle that depresses the corner of the mouth during frowning
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Depressor anguli oris
Scheme showing arrangement of fibers of Orbicularis oris (triangularis labeled at bottom right).
Muscles of the head, face, and neck (labeled as triangularis near chin).
Details
Origin
Tubercle of mandible
Insertion
Modiolus of mouth
Artery
Facial artery
Nerve
Marginal mandibular branch of the facial nerve
Actions
Depresses angle of mouth
Identifiers
Latin
musculus depressor anguli oris
TA98
A04.1.03.026
TA2
2076
FMA
46828
Anatomical terms of muscle
[edit on Wikidata]
The depressor anguli oris muscle (triangularis muscle) is a facial muscle. It originates from the mandible and inserts into the angle of the mouth. It is associated with frowning, as it depresses the corner of the mouth.
and 24 Related for: Depressor anguli oris muscle information
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