masseter (muscle)

(redirected from deep part of masseter (muscle))

mas·se·ter (mus·cle)

[TA]
masticatory muscle of posterior cheek; 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]
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