Origin
Mandible
Insertion
Modiolus
Blood supply
Facial artery.
Nerve supply
Facial nerve.
Action
The muscle depresses the angle of mouth while frowning.
Disease/Injury
NA
Muscle exercise
NA
Interesting facts
The muscle is used to express grief.
DEPRESSOR ANGULI ORIS
Depressor anguli oris is located at the lower jaw bilaterally. It is triangular in shape.
