ANATOMY

Detailed explanation-1: -The masseter is one of the muscles of mastication. It is a powerful superficial quadrangular muscle originating from the zygomatic arch and inserts along the angle and lateral surface of the mandibular ramus. The masseter is primarily responsible for the elevation of the mandible and some protraction of the mandible.

Detailed explanation-2: -Muscles of Mastication masseter: The masseter originates from the zygomatic arch. It consists of a superficial and a deep part that both insert into the mandible.

Detailed explanation-3: -The masseter muscle, important in chewing, arises from the lower edge of the arch; another major chewing muscle, the temporalis, passes through the arch. The zygomatic arch is particularly large and robust in herbivorous animals, including baboons and apes.

Detailed explanation-4: -zygomatic arch. noun. : the arch of bone that extends along the front or side of the skull beneath the orbit and that is formed by the union of the temporal process of the zygomatic bone in front with the zygomatic process of the temporal bone behind.

Detailed explanation-5: -The zygomatic arch is a composite structure made of cortical and trabecular bone, and the relative proportion of each material has been shown to vary along its length.