How jaws and mandbles move?

Jaws and mandibles move through a combination of hinge and gliding motions facilitated by the temporomandibular joint (TMJ). When the jaw opens, the mandible hinges downward and slightly forward, allowing for the mouth to open wide. During chewing, the mandible moves in a circular or lateral motion, aided by various muscles such as the masseter and temporalis. This coordinated action allows for effective grinding and breaking down of food.