Dec 20, 2024 · jaw, either of a pair of bones that form the framework of the mouth of vertebrate animals, usually containing teeth and including a movable lower jaw and fixed upper jaw (maxilla). Jaws function by moving in opposition to each other and are used for biting, chewing, and the handling of food.

Jan 20, 2025 · The key parts of your jaw’s anatomy include: Jaw Bones: The TMJ is formed by two bones: the mandible (your lower jawbone) and the temporal bone (a bone on the side of your skull). How Cartilage Supports Jaw Function: A fibrocartilaginous disc sits between these bones, acting like a cushion and allowing for smooth gliding movements.

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). The jawbone is the skull's only movable, posable bone, sharing joints with the cranium's temporal bones.

Jan 23, 2025 · Human skeleton - Mandible, Muscles, Joints: 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 …

Oct 30, 2023 · The maxilla, also known as the upper jaw, is a vital viscerocranium structure of the skull. It is involved in the formation of the orbit, nose and palate, holds the upper teeth and plays an important role for mastication and communication.

Nov 3, 2023 · The mandible is the largest bone of the facial skeleton and the only mobile bone of the skull. Learn more about its anatomy and structure on Kenhub!

Nov 30, 2024 · The mandible, commonly known as the lower jaw, is the largest and strongest bone of the facial skeleton.

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.

Most of the upper jaw bones (premaxilla, maxilla, jugal, quadratojugal, and quadrate) have been fused to the braincase, while the lower jaw bones (dentary, splenial, angular, surangular, and articular) have been fused together into a unit called the mandible. The jaw articulates via a hinge joint between the quadrate and articular.

Maxilla: These two bones form the upper jaw and hard palate by fusing in the midline via a suture. They contain maxillary sinuses and sockets for the teeth along their lower margin. It articulates with the cranial bones frontal and ethmoid, as well as the nasal, zygomatic, lacrimal, palatine, vomer, and inferior nasal concha.