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U-shaped bone
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- The mandible is a U-shaped bone that is located in the lower part of the face, below the maxilla (upper jaw). It is made up of two symmetrical halves, called ramus, which are connected by a hinge joint known as the mandibular joint or temporomandibular joint (TMJ).
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Jun 7, 2023 · The mandible, also known as the lower jaw, is a vital bone in the anatomy of the human body. It is the largest and strongest bone in the face, and it plays a key role in the functioning of the mouth and facial muscles.
- Anatomy
- Function
- Associated Conditions
- Rehabilitation
The largest facial bone, the mandible is roughly horseshoe-shaped, defining the lower margins and sides of the face. Anatomically speaking, it’s divided into two major sections: the body and the ramus.
Along with the upper jaw or maxilla, the mandible serves an essential structural and protective function. Not only do important nerves and muscles run through this bone and emerge from it, but it’s also what houses the lower set of teeth.
The most commonly seen issue that arises in the mandible is fracture or dislocation due to an accident or fall. These breaks are most commonly seen in the condyle portion of the bone, though they can arise in other portions, such as the body, the mandibular angle, and other parts of the ramus. Dislocations can also occur, with the most frequent o...
Treatment for mandible fracture depends on the location and scope of the issue. Following computerized tomography (CT) scan, X-ray, or magnetic resonance imaging (MRI)to assess the break, doctors typically have two choices: reduction or fixation. Reduction involves approximating the locations of the broken ends and setting the jaw to that position,...
Nov 3, 2023 · The mandible consists of two main parts: a body and two rami. These parts feature various anatomical landmarks that participate in important functions of the mandible, for example housing the teeth and providing the passage for neurovascular structures.
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Dec 13, 2022 · The mandible, located inferiorly in the facial skeleton, is the largest and strongest bone of the face. It forms the lower jaw and acts as a receptacle for the lower teeth. It also articulates on either side with the temporal bone, forming the temporomandibular joint.
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In jawed vertebrates, the mandible (from the Latin mandibula, 'for chewing'), lower jaw, or jawbone is a bone that makes up the lower – and typically more mobile – component of the mouth (the upper jaw being known as the maxilla).
Mandible, in anatomy, the movable lower jaw, consisting of a single bone or of completely fused bones in humans and other mammals. In birds, the mandible constitutes either the upper or the lower segment of the bill, and in invertebrates it is any of the various mouthparts that holds or bites food.
Feb 7, 2022 · The mandible is the largest, strongest, and the only skull bone capable of movement. It forms the lower jaw, and thus is also known as the lower jaw bone. It helps with the process of chewing along with the maxilla or upper jaw bone.
