gnatho-, gnath-, -gnatha, -gnathan, -gnath, -gnathia, -gnathic, -gnathous
The jaw is the name applied to the bones which contain the teeth.
The two upper jaw-bones, the maxillae, are firmly attached to the other bones of the face.
The lower jaw, the mandible, is shaped in a form similar to that of a horseshoe, and, after the first year of life, it consists of a single bone.
It forms a hinge-joint with the squamous part (thin, plate-like section) of the temporal bone, immediately in front of the ear.
Both the upper and the lower jaw-bones include deep sockets known as alveoli, which contain the roots of the teeth.
2. A congenital cleft of the upper jaw.
2. That division of the acarine (mite or tick) body which has a mouth opening and mouth parts.
2. A technique of orthodontic diagnosis based on an analysis of the relationships between the teeth and certain reference points on the skull.
2. A developmental anomaly characterized by a partial or a complete lack of the lower jaw on one side.
2. Having a congenitally defectively developed lower jaw or a protruding lower jaw.
This condition is associated with pituitary gigantism, tumors, and other disorders.
Macrognathia can often be corrected with surgery. Also called prognathic mandible.