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Depressor anguli oris
Other Terms:
Musculus depressor anguli oris,
Muscle abaisseur de l'angle de la bouche
Muscle parts
None
Latin name
Musculus depressor anguli oris
Latin muscle parts
None
Group
Branchial arch muscle – second arch (Facial muscle)
Etymology
The English for this muscle name is the muscle that presses down the corner of the mouth. Depressor comes from the Latin de meaning “down” and premere meaning “to press.” Angulus is the Latin term for “a corner, or bend.” The Latin term oris is from the Latin os meaning “a mouth or opening.”
Origin
Mental tubercle and oblique line of the mandible
Insertion
Modiolus at the angle of the mouth
Action
Contracts to pull the angle of the mouth inferiorly and laterally.
Nerve supply
Facial nerve (Cranial nerve VII)
Blood supply
Inferior labial branch of the facial artery
Latin
Musculus depressor anguli oris
French
Muscle abaisseur de l'angle de la bouche
