How well the teeth fit together is determined by the size and location of the facial bones. Chewing, speaking, and the functioning of the jaw joint are all influenced by the positions of the jaws and teeth. Soft tissues such as muscles, lips, and tongue are also held and supported by the jaws . Jaw movements play a fundamental role in human physiology, contributing to essential functions such as speaking, chewing, and expressing emotions. The jaw , primarily controlled by the temporomandibular joint (TMJ) and associated muscles, exhibits complex movements that are critical for overall oral and systemic health. In this article, we will explore the mechanics of jaw movements, their functional significance, the disorders associated with improper jaw function, and potential treatment ... The jaw is made up of the mandible, which comprises the lower jaw , and the maxilla, which comprises the upper jaw . The mandible articulates with the temporal bone via the temporomandibular joint (TMJ). The 4 muscles of mastication produce the movements of the TMJ to ensure the efficient chewing of food. Blood is supplied to this region by the external carotid system, and the TMJ is primarily innervated by branches of the trigeminal nerve. Jaws are structures that enable grasping and manipulating food, and are part of the body plan of humans and most animals. Learn about the different types and functions of jaws in arthropods, vertebrates, amphibians, reptiles, birds, and mammals.
