Jaw

Either of two bony structures (maxilla or mandible) that are intended to bear natural teeth or support prosthetic teeth.


The bones in the face which hold the teeth and form the mouth.


Bones that form the framework of the mouth and serve for the attachment of teeth. The upper jaw bone is the maxilla; the lower jaw bone, the mandible.


Usually refers to the lower jaw, called the mandible, the only movable bone in the face. The bone of the upper jaw, called the maxilla, extends all the way up to the eye sockets. Both the upper and lower jaw bones hold the teeth in position. The joint between the lower jaw bone and the skull is called the temporomandibular joint. Movement of the jaw is involved in chewing and biting and in speech production.


The name applied to the bones that carry the teeth. The two upper jaw-bones, the maxillae, are firmly fixed to the other bones of the face. The lower jaw, the mandible, is shaped somewhat like a horseshoe, and, after the first year of life, consists of a single bone. It forms a hinge-joint with the squamous part of the temporal bone, immediately in front of the ear. Both upper and lower jaw-bones possess deep sockets, known as alveoli, which contain the roots of the teeth.


Either or both of the maxillary and mandibular bones, bearing the teeth and forming the mouth framework.


The movable facial bone, commonly known as the mandible, refers to the lower jaw. Occasionally, the term might also encompass the maxilla or upper jaw, which stretches from the inner edges of the eyes down to the mouth.


The mandible holds the lower teeth on its top surface and joins the base of the skull at the temporomandibular joints. Muscles connected to this bone allow it to move, facilitating actions like chewing, biting, and moving side-to-side as well as downward.


The bones that hold the teeth are the jawbones. The upper jaw is made up of two bones known as the maxillae. Each maxilla contributes to half of the mouth’s roof, a portion of the nasal wall, and part of the eye socket. The lower jaw is initially split into two sections, but they join at the chin during infancy to create a single bone known as the mandible.


 


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