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In humans, the mandible, or lower jaw, is connected to the temporal bone of the skull via the temporomandibular joint. This is an extremely complex joint which permits movement in all planes. The muscles of mastication originate on the skull and insert into the mandible, thereby allowing for jaw movements during contraction.
The jaw elevator muscles develop the main forces used in mastication. The force generated during routine mastication of food such as carrots or meat is about 70 to 150 newtons (16 to 34 lbf ). The maximum masticatory force in some people may reach up to 500 to 700 newtons (110 to 160 lbf ).
The presence of this ridge of bone indicates that there are exceptionally strong jaw muscles. The sagittal crest serves primarily for attachment of the temporalis muscle, which is one of the main chewing muscles. Development of the sagittal crest is thought to be connected to the development of this muscle.
The health consequences of jaw clenching People who clench overnight often wake up with intense pain around their face, by their ears, or on the back of their neck. They might complain about ...
After all, a strong jawline and lifted brown bone is flattering at every angle. What Is An Ultherapy Procedure Like? The procedure can range anywhere from my 20-minute flash treatment to more than ...
A more defined chin and stronger jawline can help balance a larger nose, and it can make a person's face look more heart-shaped, a look that has gained popularity in recent years.