Masseter muscle: Learn about the masseter muscle

Learn about the masseter muscle , a paired masticatory muscle that elevates and protrudes the mandible. Find out its origin, insertion, innervation, blood supply, relations and clinical conditions. Discover the Masseter Muscle's origin, insertion, action, and related clinical conditions on our detailed anatomy guide. 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. It receives its motor innervation from the mandibular division of the trigeminal nerve. The blood supply is primarily from the masseteric artery, a branch of the internal ... The muscles of mastication are a group of muscles associated with movements of the jaw. There are four muscles - the masseter, temporalis, medial pterygoid and lateral pterygoid.