jaw

September 30, 2021 0

Jaw

The jaw is any opposable articulated structure at the entrance of the mouth, typically used for grasping and manipulating food. The term jaws is also broadly applied to the whole of the structures constituting the vault of the mouth and serving to open and close it and is part of the body plan of most animals.

Your jaw consists of a pair of bones that form the framework of the mouth of vertebrate animals, usually containing teeth and including a movable lower jaw (mandible) and fixed upper jaw (maxilla). Jaws function by moving in opposition to each other and are used for biting, yawning, laughing, talking, chewing, and the handling of food.

To under how your jaw should function, you need to know how your mandible should function. The mandible consists of a horizontal arch, which holds the teeth and contains blood vessels and nerves.

“The upper jaw is firmly attached to the nasal bones at the bridge of the nose; to the frontal, lacrimal, ethmoid, and zygomatic bones within the eye socket; to the palatine and sphenoid bones in the roof of the mouth; and at the side, by an extension, to the zygomatic bone (cheekbone), with which it forms the anterior portion of the zygomatic arch. The arched lower part of the maxilla contains the upper teeth. Inside the body of the bone is the large maxillary sinus.” – Parts of the jaw

A pulled jaw muscle can inhibit normal jaw functioning and be very painful.

Help for a pulled jaw muscle


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