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temporalis (muscle)


Definition: superiormost masticatory muscle; origin, temporal fossa; insertion, coronoid process of mandible and anterior border of ramus; action elevates mandible (closes jaw); its posterior, nearly horizontally-oriented fibers are the primary retractors of the protruded mandible. nerve supply, deep temporal branches of mandibular division of trigeminal.

Synonym(s): musculus temporalisTA, temporal muscle, temporalis

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.