buccinator muscle

頬筋

WordNet

1. make ones way by force; "He muscled his way into the office"
2. animal tissue consisting predominantly of contractile cells (同)muscular_tissue
3. one of the contractile organs of the body (同)musculus
4. authority or power or force (especially when used in a coercive way); "the senators used their muscle to get the party leader to resign"

PrepTutorEJDIC

1. 〈U〉(動物体の組織としての)『筋肉』,筋(きん);〈C〉(体の各部を動かす)筋肉 / 〈U〉力,(特に)筋力,腕力 / 《俗に》(…に)強引に割り込む《+『in on』(『into, through』)+『名』》
2. 筋肉の,筋力のある / 力ずくの

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/02/18 00:14:29」(JST)

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[Wiki en表示]

"Buccinator" redirects here. For other uses, see Buccinator (disambiguation).

Buccinator muscle
Buccinator outlined in red.
Latin	musculus buccinator
Gray's	p.384
Origin	from the alveolar processes of the maxillary bone and mandible, temporomandibular joint
Insertion	in the fibers of the orbicularis oris
Artery	buccal artery
Nerve	buccal branch of the facial nerve (VII cranial nerve)
Actions	The buccinator compresses the cheeks against the teeth and is used in acts such as blowing. It is an assistant muscle of mastication (chewing) and in neonates it is used to suckle.

The buccinator (/ˈbʌksɪneɪtər/ ) is a thin quadrilateral muscle, occupying the interval between the maxilla and the mandible at the side of the face. It forms the anterior part of the cheek or the lateral wall of the oral cavity.

Action

Its purpose is to pull back the angle of the mouth and to flatten the cheek area, which aids in holding the cheek to the teeth during chewing. This action causes the muscle to keep food pushed back on the occlusal surface of the posterior teeth, as when a person chews. By keeping the food in the correct position when chewing, the buccinator assists the muscles of mastication.

It aids whistling and smiling, and in neonates it is used to suckle.

Origin and insertion

It arises from the outer surfaces of the alveolar processes of the maxilla and mandible, corresponding to the three pairs of molar teeth; and behind, from the anterior border of the pterygomandibular raphé which separates it from the constrictor pharyngis superior.

The fibers converge toward the angle of the mouth, where the central fibers intersect each other, those from below being continuous with the upper segment of the orbicularis oris, and those from above with the lower segment; the upper and lower fibers are continued forward into the corresponding lip without decussation.

Innervation

Motor innervation is from the buccal branch of the facial nerve (cranial nerve VII). Sensory innervation is supplied by the buccal branch (one of the muscular branches) of mandibular nerve (cranial nerve V3).

Additional images

• Left maxilla. Outer surface.

• Mandible. Outer surface. Side view.

• Scheme showing arrangement of fibers of Orbicularis oris.

• The internal carotid and vertebral arteries. Right side.

• Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion.

• Mandibular division of the trifacial nerve.

• The mouth cavity. The cheeks have been slit transversely and the tongue pulled forward.

• Position of buccinator muscle (red).

• Position of buccinator muscle (red).

• Position of buccinator muscle (red).

• Buccinator muscle

References

External links

• -845545395 at GPnotebook
• Anatomy photo at the Loyola University Chicago Stritch School of Medicine
• Buccinator+muscle at eMedicine Dictionary
• Anatomy diagram: 05287.011-1 at Roche Lexicon - illustrated navigator, Elsevier
• Anatomy diagram: 25420.000-1 at Roche Lexicon - illustrated navigator, Elsevier
• An anatomical study of the buccinator muscle fibres that extend to the terminal portion of the parotid duct, and their functional roles in salivary secretion, Kang, et al, J Anat. 2006 May; 208(5): 601–607 at http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2100218/

This article incorporates text from a public domain edition of Gray's Anatomy.

UpToDate Contents

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• 1. 筋力低下の評価における筋力検査 muscle examination in the evaluation of weakness
• 2. 慢性閉塞性肺疾患（COPD）における呼吸筋のトレーニングおよび安静 respiratory muscle training and resting in copd
• 3. 筋力低下患者へのアプローチ approach to the patient with muscle weakness
• 4. 筋ホスホリラーゼ欠損症（糖原病V型、マッカードル病） muscle phosphorylase deficiency glycogen storage disease v mcardle disease
• 5. 筋肉におけるエネルギー代謝 energy metabolism in muscle

English Journal

• MR relaxometry for the facial ageing assessment: the preliminary study of the age dependency in the MR relaxometry parameters within the facial soft tissue.

• Watanabe M1, Buch K1, Fujita A1, Christiansen CL2, Jara H1, Sakai O1,3,4.
• Dento maxillo facial radiology.Dentomaxillofac Radiol.2015 Sep;44(7):20150047. doi: 10.1259/dmfr.20150047. Epub 2015 May 14.
• OBJECTIVES: To investigate the location-specific tissue properties and age-related changes of the facial fat and facial muscles using quantitative MRI (qMRI) analysis of longitudinal magnetization (T1) and transverse magnetization (T2) values.METHODS: 38 subjects (20 males and 18 females, 0.5-87 y
• PMID 25974063

• Treating Buccinator With Botulinum Toxin in Patients With Facial Synkinesis: A Previously Overlooked Target.

• Wei LA1, Diels J, Lucarelli MJ.
• Ophthalmic plastic and reconstructive surgery.Ophthal Plast Reconstr Surg.2015 Aug 24. [Epub ahead of print]
• OBJECTIVE: Synkinesis after facial nerve injury produces functional and cosmetic concerns for patients. The purpose of this study was to review the authors' experience of treating buccinator synkinesis with botulinum toxin.METHODS: This was a retrospective medical records review. All patients seen a
• PMID 26325382

• Morphometric aspects of the facial and skeletal muscles in fetuses.

• Moriyama H1, Amano K2, Itoh M3, Matsumura G2, Otsuka N4.
• International journal of pediatric otorhinolaryngology.Int J Pediatr Otorhinolaryngol.2015 Jul;79(7):998-1002. doi: 10.1016/j.ijporl.2015.04.009. Epub 2015 Apr 13.
• OBJECTIVES: There are few research reports providing a comparison of the muscle fiber morphometry between human fetuses and adults. Data on fetal and adult muscle fibers would be valuable in understanding muscle development and a variety of muscle diseases. This study investigated human muscle fiber
• PMID 25920965

Japanese Journal

• 上口唇、皺眉筋、ならびに母指で行う筋弛緩モニターの比較

• 松峯 瑠衣,齋藤 祐司,佐藤 二郎 [他],尾崎 眞
• 東京女子医科大学雑誌 83(5), 356-362, 2013-10-25
• 〔背景〕全身麻酔中の患者における筋弛緩効果は、通常、手の母指や、前額部にある皺眉筋で筋弛緩モニターを行うことによって定量的に測定される。しかし、手の上には手術用覆布が掛けられたり、前額部には鎮静度を測定するためのプローベが貼付されたりするため、実際には、手の母指や皺眉筋における筋弛緩モニターは困難である。そこで、上口唇における筋弛緩モニター方法について研究を行った。〔方法〕全身麻酔下に手術を施行さ …
• NAID 110009631875

• 外側咽頭後リンパ節転移を生じた頬粘膜癌の2例と本邦報告例に関する文献的考察

• 木村 幸紀,花澤 智美,岡野 友宏,入江 太朗,立川 哲彦
• 日本口腔腫瘍学会誌 22(3), 107-114, 2010-09-15
• われわれの施設では，1990年から2008年にかけて頬粘膜扁平上皮癌の外側咽頭後リンパ節（LRPN）転移が2例みられた。原発腫瘍は頬粘膜後部から生じていた。断層画像では，患側の後咽頭間隙内に各々，17×12mm，15×12mmの大きさの転移性リンパ節が認められた。これら2症例と本邦における論文または予稿集で報告されている，LRPN転移を生じた他の頬粘膜癌4例を，原因となったリンパ路と臨床的特徴に重 …
• NAID 10029089518

• ヒト胎児頬筋の筋線維構成について

• 森山 浩志,島田 和幸
• Facial nerve research 29, 31-33, 2010-01-18
• NAID 10026103193

Related Links

• Buccinator-muscle | Define Buccinator-muscle at Dictionary.com

buccinator muscle buc·ci·na·tor muscle (bŭk'sə-nā'tər) n. A muscle with origin from the alveolar portion of the maxilla, mandible,and pterygomandibular ligament, with insertion into the orbicular muscle of the mouth, with nerve supply ...

• Buccinator muscle - YouTube

Jawline or masseter muscle relaxation for jawline slimming, teeth grinding, and clenching - Duration: 2:53. by The Victorian Cosmetic Institute 10,203 views

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★リンクテーブル★

リンク元	「頬筋」
関連記事	「muscle」

「頬筋」

　　[★]

英

buccinator (K), buccinator muscle

ラ

musculus buccinator

関

顔面筋群、顔面神経

「muscle」

　　[★]

• n.

• 筋肉