During mastication, four muscles of mastication (or musculi masticatorii) are responsible for adduction and lateral motion of the jaw. Other muscles, usually associated with the hyoid such as the sternohyomastoid, are responsible for opening the jaw.
Other articles related to "muscles of mastication, mastication, muscles":
... The mandible is the only bone that moves during mastication and other activities, such as talking ... While these four muscles are the primary participants in mastication, other muscles are usually if not always helping the process, such as those of the tongue and the cheeks ...
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