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Nov 3, 2023 · The mandible is the largest bone of the facial skeleton (viscerocranium). Besides the bones of the middle ear, the mandible is the only mobile bone in the skull. Unlike other bones of the skull, the mandible doesn’t articulate with the surrounding bones via sutures, but rather via a synovial joint called the temporomandibular joint.
- Medical Content
- 20 min
- Ramus
- Foramina
- Muscle and Ligament Attachments
- Articulations
As mentioned, the bone features two mandibular rami (singular: ramus) that project perpendicularly upwards from the angle of the mandible. The body and the rami meet on each side at the angle of mandible orgonial angle. This angle can range from 110-130 degrees and vary depending on age, sex and ethnicity. At the superior point, the ramus divides i...
The mandible is marked by two foramina: 1. Mandibular Foramen The inner medial side of the ramus contains the mandibular foramen, through which the inferior alveolar nerve and inferior alveolar artery pass. These neurovascular structures travel through this foramen into the mandibular canal and exit at the mental foramen. At the anterosuperior side...
Muscles originating from the mandible 1. Mentalis: From the incisive fossa 2. Depressor labii inferioris: From the oblique line 3. Orbicularis oris:From the incisive fossa 4. Digastric anterior belly: From the digastric fossa 5. Depressor anguli oris:From the oblique line 6. Buccinator:From the alveolar process 7. Mylohyoid:From the mylohyoid line ...
The mandible is the only bone that doesn’t articulate with its adjacent skull bones with the help of sutures. It forms only one articulation: Temporomandibular Joint: The condyle part of the condylar process articulates with the temporal bone, forming the temporomandibular joint with the help of the articular disk. It is attached to the maxilla thr...
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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Jun 7, 2023 · 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).
Aug 6, 2024 · The mandible is the bone that makes up the lower half of the jaw and contains the bottom set of teeth. The mandible is the only facial bone that moves.
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.
Sep 14, 2024 · The left and right halves of the lower jaw, or mandible, begin originally as two distinct bones, but in the second year of life the two bones fuse at the midline to form one. The horizontal central part on each side is the body of the mandible.
