释义 |
DictionarySeemassetermasseter muscle
masseter The major jaw muscle, which participates in protraction, retraction and side to side movement of the jaw. Action Closes jaw. Nerve Mandibular branch of trigeminal. Origin, superficial part Zygomatic process of maxilla, inferior border of zygomatic arch. Origin, deep part Inferior border and medial suface of zygomatic arch. Insertion, superficial part Angle, ramus of mandible. Insertion, deep part Superior ramus, lateral coronoid process of mandible.mas·se·ter mus·cle (masĕ-tĕr mŭsĕl) Origin, superficial part: inferior border of the anterior two thirds of the zygomatic arch; deep part: inferior border and medial surface of the zygomatic arch; insertion, lateral surface of ramus and coronoid process of the mandible; action, elevates mandible (closes jaw); nerve supply, masseteric branch of mandibular division of trigeminal. Synonym(s): musculus masseter [TA] . mas·se·ter mus·cle (masĕ-tĕr mŭsĕl) Origin, superficial part: inferior border of the anterior two thirds of the zygomatic arch; deep part: inferior border and medial surface of the zygomatic arch; insertion, lateral surface of ramus and coronoid process of the mandible; action, elevates mandible (closes jaw); nerve supply, masseteric branch of mandibular division of trigeminal. Synonym(s): musculus masseter [TA] . |