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 ?
For the masseter, the target site was in the center of the most prominent bulge during contraction.
masseter Zigomatik kemik Mandibulanin dis Agzi kapatmak yuzeyinde angulus mandibula M.
13]C médio das rações fornecidas aos leitões durante o período experimental foi de -25,19[par mille], verifica-se que os valores das assíntotas, calculados para ambos os músculos dos animais do tratamento com 1% de glutamina (-25,25[par mille] e -25,08[par mille] para Masseter e Psoas major, respectivamente), encontramse dentro do esperado.
Junior 7 & 8 tongue throat stomach sternum radius thigh kidney eardrum enamel trachea bronchi muscle shoulder tissue plasma Advanced 9 & 10 scapula mandible stapes incus tarsus maxilla carpals bicuspid masseter hyoid carotid lacrimal jugular thyroid cerebrum parietal temporal occipital Super 11 & 12 vertebra pituitary alveoli eustachian tube sphenoid incisor canine platysma buccinator tropezius maxillary sinus sternocleidomastoid metatarsals trochlea mental foramen
The proband is a 27-year-old female, who at the age of 7 developed masseter spasm and increased serum creatine kinase during general anesthesia for tonsillectomy.
The electrical activity of their temporal and masseter muscles was recorded using a polygraph in a process known as electromyography.
There are thirty-two segments devoted to a particular muscle, such as temporalis, masseter, sternocleidomastoid, biceps brachii and so on.
Vaughan (1961) reported an apparently comparable case of cranial asymmetry in a pocket gopher (Geomys bursarius), which he attributed to the lack of an upper incisor, and the compensatory forces of unequal development of the masseter.
Anesthesiologists now have an important new option with fewer side effects such as malignant hyperthermia, masseter muscle rigidity and hyperkalemia," said Dennis M.
Smile reconstruction in adults with free muscle transfer innervated by the masseter motor nerve: Effectiveness and cerebral adaptation.
Bruxism can lead to masseter hypertrophy, headache, periodontal disease, temporomandibular joint destruction, and tooth wear [3].
TrPs in the suboccipital muscles were most prevalent (n = 12; 92%), followed by the superior oblique muscle (n = 11/n = 9 right/left side), the upper trapezius muscle (n = 11/n = 6) and the masseter muscle (n = 9/n = 7).