Angle of mandible

The gonial angle, or angle of the mandible (Angulus mandibulae) is located at the caudal border   at the junction of the inferior border of the body and the ramus of the mandible. It is marked by rough oblique crests on each side, for the attachment of the masseter muscle laterally and of the medial pterygoid muscle medially; the stylomandibular ligament is attached between these muscles.

The gonion is the median point of the mandibular angle