Origin
It arises from the modiolus, the maxilla and the mandible.
Insertion
Mucus membrane of the lip margin.
Blood supply
Facial artery.
Nerve supply
Facial nerve.
Action
The muscle is responsible for mouth movements like smiling, laughing, talking. It helps in puckering of lips. The muscle is used in playing brass instruments like trumpet and flute. This muscle also helps to close the mouth.
Disease/Injury
Satchmo’s syndrome – Rupture of orbicularis oris muscles in people who play the trumpet. The muscle can also get injured because of its overuse in playing brass instruments.
Muscle exercise
NA
Interesting facts
The orbicularis oris is also known as the kissing muscle.
