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IN OUR FACE WHY THE LOWER JAW IS NOT MOVING?
The lower jaw has its own separate bone which is called 'the mandible', which is U-shaped and stretches from one ear, down to the chin area and then back up again to the other ear. It is joined to the upper part of the head around the ear region by two jaw joints (called 'tempero mandibular joints'.It is a type of hinge joint.
The maxilla is a name for the upper jaw, and it is made up of several bones stuck (or fused) together, and sits in front of and just below the cranium. It is attached to the cranium and forms the cheeks, the nose, and the roof of the mouth. 


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