An important muscle of MASTICATION that extends from the zygomatic arch in the cheek to the mandible or jawbone. It acts by closing the jaw.
n. a thick muscle in the cheek extending from the zygomatic arch to the outer corner of the mandible. It is important for mastication and acts by closing the jaws.
Or zygomatic bone. The name given to a bridge of bone formed by the union of a process from the temporal bone in the skull with one from the malar (cheek) bone. It lies in the region of the temple, gives attachment to the powerful masseter muscle which moves the lower jaw, and forms a protection to the side of the head.... zygoma
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