masseter


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Related to masseter: buccinator, temporalis, Medial pterygoid

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]

masseter

/mas·se·ter/ (mas-ēt´er) masseter muscle. masseter´ic

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.

masseter

[masē′tər]
Etymology: Gk, one who chews
the thick rectangular muscle in the cheek that functions to close the jaw. It is one of the four muscles of mastication. The masseter is innervated by the masseteric nerve from the mandibular division of the trigeminal nerve.
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Masseter

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.

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.

masseter

the chewing muscle which raises the lower jaw.

masseter

see masseter muscle and Table 13.1H.
References in periodicals archive ?
Closed - ended questions pertaining to the number of TMD cases diagnosed, ability to differentiate between intraand extracapsular disorders and the preferred method for evaluation of medial pterygoid, inferior lateral pterygoid, superior lateral pterygoid, masseter and temporalis were asked.
Effects of therapy on masseter activity and chewing kinematics in patients with unilateral posterior crossbite.
In general, both masseter and temporalis muscles are assessed in bruxism and treated with BoNT-A bilaterally.
Strengthening 5 to 10 times from Masseter the masseter muscle 5 to 15 (side depending on seconds.
The influence of experimental interfering occlusal contacts on the postural activity of the anterior temporal and masseter muscles in young adults.
Measurements of the amplitude parameters (mean and peak amplitude) and the MDF for the masseter and infrahyoid group showed a significant agreement during all studied swallowing conditions in both groups, indicating that these measures are repeatable.
Active electrodes were placed anterior to the zygomatic arch on the masseter belly.
Table 1 shows the normalized electromyographic data of the masseter and temporal muscles with the mandibular at rest and using the Lucia Jig at periods of 0 to 30 min, in patients with muscular temporomandibular dysfunction.
Masticatory muscle myositis is an autoimmune canine myopathy causing focal inflammation of muscles of mastication including the temporalis, masseter, pterygoid and rostral digastricus, all of which are innervated by mandibular branch of trigeminal nerve (Bolfa et al.
The impacted teeth in the study group were extracted with surgical bone removal, and 2ml of 8mg/2ml dexamethasone was injected into the ipsilateral masseter muscle immediately after suturing.
Four muscles of mastication move the mandible: masseter, temporal, medial, and lateral pterygoid muscles.
The NDS platform technology and ANT-1207 add to Allergan's strong neurotoxin pipeline, with BOTOX Cosmetic (onabotulinumtoxinA) currently in development for treating forehead lines, masseter hypertrophy and platysma bands and BOTOX Therapeutic in development for osteoarthritis and depression.