Quadrilateral Muscle of the lower lip

We continue to study the muscles of our face!👩‍🎓
So, the quadrilateral muscle of the lower lip or the muscle that lowers the lower lip.
It is located under the lip, in the middle of the chin.
It starts from the lower part of the jaw, attaches to the skin of the lower lip.
The function is to turn out the lower lip, which gives our face an expression of disgust.🥴