Medical term:

masseter


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]
Farlex Partner Medical Dictionary © Farlex 2012

masseter

(mə-sē′tər, mă-)
n.
A thick muscle in the cheek that closes the jaws during chewing.
mas′se·ter′ic (măs′ĭ-tĕr′ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

masseter

A short, thick, paired muscle in each cheek running down from the cheekbone (zygomatic arch) to the outer corner of the jawbone (mandible). The masseters act to raise the lower jaw and compress the teeth together in the act of chewing.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

masseter

the chewing muscle which raises the lower jaw.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

masseteric

adjective Referring or pertaining to the masseter (muscle).
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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