arcus zygomaticus

頬骨弓

WordNet

1. a continuous portion of a circle
2. of or relating to the cheek region of the face
3. a whitish deposit in the shape of an arc that is sometimes seen in the cornea (同)arcus_senilis

PrepTutorEJDIC

1. 『弧』,円弧 / 電弧(2点間を弧状に流れる電流) / 弧を描く / 電弧を生じる

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2018/01/29 13:50:45」(JST)

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Zygomatic arch
Side view of the skull.
Articulation of the mandible. Lateral aspect.
Details
Identifiers
Latin	arcus zygomaticus
Dorlands /Elsevier	a_58/12150836
TA	A02.1.00.023
FMA	53120
Anatomical terminology

The zygomatic arch or cheek bone is formed by the zygomatic process of the temporal bone (a bone extending forward from the side of the skull, over the opening of the ear) and the temporal process of the zygomatic bone (the side of the cheekbone), the two being united by an oblique suture (zygomaticotemporal suture); the tendon of the temporalis passes medial to the arch to gain insertion into the coronoid process of the mandible. The jugal point is the point at the anterior end of the upper border of the zygomatic arch where the masseteric and maxillary edges meet at an angle. The jugal point is the anterior end of upper border of the zygomatic arch where it meets the process of the zygomatic bone.

Structure

The zygomatic process of the temporal arises by two roots:

• an anterior, directed inward in front of the mandibular fossa, where it expands to form the articular tubercle.
• a posterior, which runs backward above the external acoustic meatus and is continuous with the supramastoid crest.

The upper border of the arch gives attachment to the temporal fascia; the lower border and medial surface give origin to the Masseter.

Society and culture

High cheekbones are pronounced zygomatic arches, causing the upper part of the cheeks to jut out and form a line cut into the sides of the face. High cheekbones, forming a symmetrical face shape, are very common in fashion models and are considered a beauty trait in both males and females.

Etymology

The term zygomatic derives from the Greek ζύγωμα zygōma meaning "bolt, bar", derived from ζυγο- "yoke, join". The Greek word was already used with this anatomical sense by Galen (2.437, 746) in the 2nd century AD. The zygomatic arch is occasionally referred to as the zygoma, but this term usually refers to the zygomatic bone or occasionally the zygomatic process.

Other animals

The zygomatic arch is significant in evolutionary biology, as it is part of the structures derived from the ancestral single temporal fenestra of the synapsid ancestor of mammals.

Additional images

• Left temporal bone. Outer surface.

• Left zygomatic bone. Malar surface.

• Base of skull. Inferior surface.

• The Temporalis; the zygomatic arch and Masseter have been removed.

• Dissection, showing salivary glands of right side.

• Fracture of the zygomatic arch as seen on plain Xray

• Zygomatic arch.Base of skull.

See also

This article uses anatomical terminology; for an overview, see Anatomical terminology.

• Zygoma fracture
• Zygomasseteric system
• Zygomaticotemporal suture
• Zygomatic complex fracture

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

• lesson1 at The Anatomy Lesson by Wesley Norman (Georgetown University) (latskullitems)
• "Anatomy diagram: 34257.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2014-01-01. 

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English Journal

• Selective laser melted titanium implants: a new technique for the reconstruction of extensive zygomatic complex defects.

• Rotaru H1, Schumacher R2, Kim SG3, Dinu C1.
• Maxillofacial plastic and reconstructive surgery.Maxillofac Plast Reconstr Surg.2015 Jan 29;37(1):1. eCollection 2015.
• The restoration of extensive zygomatic complex defects is a surgical challenge owing to the difficulty of accurately restoring the normal anatomy, symmetry, proper facial projection and facial width. In the present study, an extensive post-traumatic zygomatic bone defect was reconstructed using a cu
• PMID 25654072

• Facial Contouring Surgery with Custom Silicone Implants Based on a 3D Prototype Model and CT-Scan: A Preliminary Study.

• Yim HW1, Nguyen A, Kim YK.
• Aesthetic plastic surgery.Aesthetic Plast Surg.2015 Jun;39(3):418-24. doi: 10.1007/s00266-015-0482-z. Epub 2015 Apr 30.
• BACKGROUND: From perspectives of differences in anatomic and cultural characteristics from Caucasians, Asians have been considered to undergo facial bone contouring surgery of the zygoma and mandible and fat grafting in the anterior mimetic area of midface. We have sought to develop more ready-to-us
• PMID 25924696

• Craniofacial fracture patterns in all terrain vehicle injuries.

• Rivera-Barrios AE1, Brown S, Reid CM, Hassanein AH, Coimbra R, Dobke M, Herrera FA Jr.
• Annals of plastic surgery.Ann Plast Surg.2015 Jun;74 Suppl 4:S229-30. doi: 10.1097/SAP.0000000000000445.
• BACKGROUND: A multicenter, retrospective study was conducted to determine the frequency and distribution of craniofacial fractures sustained from all terrain vehicle (ATV) accidents.METHODS: Medical records of all patients presenting to 2 trauma centers with ATV-related craniofacial trauma from 2001
• PMID 25695451

Japanese Journal

• アンダマン諸島のニグリート

• 人類學雜誌 90(3), 331-332, 1982
• NAID 130003882455

• The M. Masseter of the Formosan Monkey

• Okajimas Folia Anatomica Japonica 49(4), 227-247, 1972
• NAID 130004649962

• 邦人顳顬骨ノ硏究 : 顴弓(Arcus zygomaticus)ノ形態學的並ニ人類學的硏究

• 金澤醫科大學十全會雜誌 035(03), 525-569, 1930-03-01
• NAID 120003273438

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★リンクテーブル★

リンク元	「頬骨弓」
関連記事	「arc」「zygomatic」

「頬骨弓」

　　[★]

英

zygomatic arch

ラ

arcus zygomaticus

関

頭蓋

「arc」

　　[★]

• n.

• アーク、弧、電弧

関

AIDS-related complex、lymphadenopathy syndrome

　 　

「zygomatic」

　　[★]

• 頬骨の

関

cheek bone、jugal bone、malar bone、zygoma