WordNet

a three-sided polygon (同)trigon, trilateral
something approximating the shape of a triangle; "the coastline of Chile and Argentina and Brazil forms two legs of a triangle"
a percussion instrument consisting of a metal bar bent in the shape of an open triangle
any of various triangular drafting instruments used to draw straight lines at specified angles
of or relating to or consisting of muscle; "muscular contraction"
having or suggesting great physical power or force; "the muscular and passionate Fifth Symphony"

PrepTutorEJDIC

三角形 / 三角形の物 / 《米》三角定規 / (楽器の)トライアングル / 三つ組,三人組;(男女の)三角関係
『助肉の』,筋肉でできた / 筋肉による / 筋肉の発達した

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/08 09:14:04」(JST)

wiki en

The inferior carotid triangle (or muscular triangle), is bounded, in front, by the median line of the neck from the hyoid bone to the sternum; behind, by the anterior margin of the Sternocleidomastoid; above, by the superior belly of the Omohyoid.

It is covered by the integument, superficial fascia, Platysma, and deep fascia, ramifying in which are some of the branches of the supraclavicular nerves.

Beneath these superficial structures are the Sternohyoid and Sternothyroid, which, together with the anterior margin of the Sternocleidomastoid, conceal the lower part of the common carotid artery.

This vessel is enclosed within its sheath, together with the internal jugular vein and vagus nerve; the vein lies lateral to the artery on the right side of the neck, but overlaps it below on the left side; the nerve lies between the artery and vein, on a plane posterior to both.

In front of the sheath are a few descending filaments from the ansa cervicalis; behind the sheath are the inferior thyroid artery, the recurrent nerve, and the sympathetic trunk; and on its medial side, the esophagus, the trachea, the thyroid gland, and the lower part of the larynx.

By cutting into the upper part of this space, and slightly displacing the Sternocleidomastoid, the common carotid artery may be tied below the Omohyoid.

Gallery

Sternocleidomastoid muscle
Muscles of the neck. Anterior view.
The triangles of the neck. (Anterior triangles to the left; posterior triangles to the right. Suprahyoid labeled at left.)

muscular boundaries medial - midline of neck belo hyoid bone lateral - superior belly of omohyoid muscle inferior- lower anterior portion of sternocleiodomastiodeus

References

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

External links

Anatomy photo:25:03-0100 at the SUNY Downstate Medical Center
Anatomy figure: 25:01-00 at Human Anatomy Online, SUNY Downstate Medical Center
lesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (necktriangle)
lesson6 at The Anatomy Lesson by Wesley Norman (Georgetown University)
‹The template EMedicineDictionary is being considered for deletion.› muscular+triangle at eMedicine Dictionary

UpToDate Contents

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1. 脊髄性筋萎縮症 spinal muscular atrophy
2. 眼咽頭型、遠位型，および先天性筋ジストロフィー oculopharyngeal distal and congenital muscular dystrophies
3. 肢帯型筋ジストロフィー limb girdle muscular dystrophy
4. デュシェンヌ型およびベッカー型筋ジストロフィーの治療 treatment of duchenne and becker muscular dystrophy
5. エメリー‐ドレフェス型筋ジストロフィー emery dreifuss muscular dystrophy

English Journal

Clarifying the surgical morphology of inlet ventricular septal defects.

Spicer DE, Anderson RH, Backer CL.SourceDepartment of Pediatric Cardiology, University of Florida College of Medicine, Gainesville, and The Congenital Heart Institute of Florida, St Petersburg, Florida.
The Annals of thoracic surgery.Ann Thorac Surg.2013 Jan;95(1):236-41. doi: 10.1016/j.athoracsur.2012.08.040. Epub 2012 Oct 22.
BACKGROUND: Different types of ventricular septal defects (VSD) open to the inlet of the right ventricle. The atrioventricular conduction axis is markedly different within these subtypes, a feature of great surgical importance. To clarify these relationships, we have studied hearts with such VSDs fr
PMID 23084418

Abdominal field block via the lumbar triangle revisited.

Rafi AN.
Anaesthesia.Anaesthesia.2012 Dec;67(12):1399-401. doi: 10.1111/anae.12077.
PMID 23130727

Japanese Journal

腸骨移植片採取後に発症した下腰ヘルニアの1例

岡田真典,戸田大作,岡田富朗
日本臨床外科学会雑誌 73(8), 2148-2151, 2012
腰部には上腰三角，下腰三角と呼ばれる2つの腹壁抵抗減弱部があり，この部位に腰ヘルニアを発症することがある．今回，腸骨移植片採取後に，下腰三角をヘルニア門とする下腰ヘルニアを発症した1例を経験した．症例は77歳女性．1年4カ月前に左大腿骨骨折手術後の偽関節を認め，左腸骨移植片採取による骨形成修復術を施行した．その手術後から左腰部膨隆を認めたため当科紹介となった．左腰部に20cm大の膨隆を認め，腹部C …
NAID 130004900868

アンティキュテーラのイアーソーン

羽田康一
西洋古典學研究 52, 70-83, 2004-03-05
… with her left hand, a phiale filled with magic sleeping potion toward the stretched head of the serpent (for her pose see fig 5 and the mirror image of Piraeus Artemis A, fig 7) The eyes of Iason and Medeia directed toward each other constitute the base of the isosceles triangle, the vertex of which is the tree, and close the sculptural space A female left hand from the Antikythera wreck (inv X15095 fig 8), wearing a ring on the ring finger, has a hole on the palm, where a phiale or other object was probably fixed with a stud If projected scientific …
NAID 110007383122

喉頭挙上力の定量評価を目的とした喉頭運動の計測 : 前頸部圧迫による喉頭運動の時間パラメータの変化

石田智子,林豊彦,中村康雄 [他],道見登
電子情報通信学会技術研究報告. MBE, MEとバイオサイバネティックス 102(89), 41-44, 2002-05-17
これまで我々は,嚥下機能をベッドサイドで効果的に評価することを目的として,喉頭の上下運動計測システムを開発してきた.この評価のためには,次に飲み込む力,つまり喉頭挙上に関与する筋群の複合的な力<喉頭挙上力>を定量評価する必要がある.しかし,そのような筋力は直接には測定できない.そこで我々は,前頸部圧迫により喉頭運動を抑制し,その運動パラメータを用いることを提案した.このパラメータは,喉 …
NAID 110003286494

Related Pictures

★リンクテーブル★

リンク元	「筋三角」
関連記事	「muscular」「triangle」

「筋三角」

Muscular triangle
	Muscular triangle
	Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.)
Details
Latin	trigonum musculare
Identifiers
Gray's	p.563
Dorlands; /Elsevier	t_19/12823541
	Anatomical terminology