WordNet

a part of a forked or branching shape; "he broke off one of the branches" (同)leg, ramification
divide into two or more branches so as to form a fork; "The road forks" (同)ramify, fork, furcate, separate
a division of a stem, or secondary stem arising from the main stem of a plant
a division of some larger or more complex organization; "a branch of Congress"; "botany is a branch of biology"; "the Germanic branch of Indo-European languages" (同)subdivision, arm
a stream or river connected to a larger one
a diacritical mark (^) placed above a vowel in some languages to indicate a special phonetic quality
broken husks of the seeds of cereal grains that are separated from the flour by sifting
food prepared from the husks of cereal grains
resembling the branches of a tree
the act of branching out or dividing into branches (同)ramification, fork, forking
having branches (同)branching, ramose, ramous, ramate

PrepTutorEJDIC

『枝』 / 『支流』,支脈,支線;分家 / 『支店』,『支部』,支局 / (学問の)『部門』,分科 / 枝を出す,枝を広げる / (川・道・鉄道などが)分岐する
曲折アクセント記号(音質・音量・アクセントなどを示すため母音字の上につける^などの記号;role)
ふすま,ぬか

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/12/20 11:17:02」(JST)

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The "LCX", or left circumflex artery (or circumflex artery, or circumflex branch of the left coronary artery) is an artery of the heart.

Course[edit]

It follows the left part of the coronary sulcus, running first to the left and then to the right, reaching nearly as far as the posterior longitudinal sulcus.

Branches[edit]

The circumflex artery curves to the left around the heart within the coronary sulcus, giving rise to one or more left marginal arteries (also called obtuse marginal branches (OM)) as it curves toward the posterior surface of the heart. It helps form the posterior left ventricular branch or posterolateral artery. The circumflex artery ends at the point where it joins to form to the posterior interventricular artery in 15% of all cases, which lies in the posterior interventricular sulcus. In the other 85% of all cases the posterior interventricular artery comes out of the right coronary artery.^[1]

Structures supplied[edit]

The LCX supplies the posterolateral left ventricle and the anterolateral papillary muscle.

It also supplies the sinoatrial nodal artery in 38% of people.

It supplies 15-25% of the left ventricle in right-dominant systems. If the coronary anatomy is left-dominant, the LCX supplies 40-50% of the left ventricle. (See Coronary circulation for description of dominance.)

Additional images[edit]

Coronary arteries (labeled in red text) and other major landmarks (in blue text). Left circumflex artery is labeled at right.

Cardiac vessels
Human heart with coronary arteries
Heart coronary territories
Heart left lateral coronaries diagram

References[edit]

^ Agur, Keith L. Moore, Arthur F. Dalley, Anne M.R. (2010). Clinically oriented anatomy (6th ed. ed.). Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. p. 145. ISBN 9780781775250.

External links[edit]

SUNY Figs 20:03-03 - "Anterior view of the heart."
SUNY Figs 20:04-01 - "Posterior view of the heart."
SUNY Labs 20:09-0104 - "Heart: The Left Coronary Artery and its Branches"
-442892231 at GPnotebook
circumflex+branch+of+left+coronary+artery at eMedicine Dictionary
Image at merck.com
Overview and diagrams at cardiologysite.com

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

This cardiovascular system article is a stub. You can help Wikipedia by expanding it.

UpToDate Contents

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1. 右脚ブロック right bundle branch block
2. 左脚ブロック left bundle branch block
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English Journal

Supermicrosurgical free sensate intercostal artery perforator flap based on the lateral cutaneous branch for plantar reconstruction.

Iida T1, Narushima M2, Hara H2, Yamamoto T2, Yoshimatsu H2, Morizaki Y3, Uehara K3, Koshima I2.
Journal of plastic, reconstructive & aesthetic surgery : JPRAS.J Plast Reconstr Aesthet Surg.2014 Jul;67(7):995-7. doi: 10.1016/j.bjps.2014.01.001. Epub 2014 Jan 16.
The use of an intercostal artery perforator (ICAP) flap has recently become popular in reconstructive surgery. We have developed a novel free sensate ICAP flap based on the lateral cutaneous branch (LCB) and applied it to a case with a plantar defect. To the best of our knowledge, this case is the f
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[Dynamic reconstruction of Achilles tendon by free composite perforator flap with functional assessment.]

Michel G1, Ho Quoc C2, Assaf N3, Delay E2, Sinna R4.
Annales de chirurgie plastique et esthetique.Ann Chir Plast Esthet.2014 Jun 19. pii: S0294-1260(14)00077-6. doi: 10.1016/j.anplas.2014.05.004. [Epub ahead of print]
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Fluid-structure interaction analysis of the left coronary artery with variable angulation.

Dong J1, Sun Z, Inthavong K, Tu J.
Computer methods in biomechanics and biomedical engineering.Comput Methods Biomech Biomed Engin.2014 Jun 5:1-9. [Epub ahead of print]
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PMID 24897936

Japanese Journal

Surgical treatment of a patient with an isolated single coronary artery and ischemic heart disease

林弘樹,森秀暁
Journal of the Japanese Coronary Association, 2013
… The angiography showed that the coronary artery originated from a single ostium in the right sinus of Valsalva, and divided into 3 branches: the right coronary artery, left anterior descending (LAD) artery, and left circumflex artery (LCA). … The coronary artery did not branch out into the left main. …
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小児期発症冠攣縮性狭心症 (coronary spastic angina : CSA) の2例 : 小児期発症CSAの文献的考察を含めて

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日本小児循環器学会雑誌 = Acta cardiologica paediatrica Japonica 28(1), 56-64, 2012-01-31
<B>【背景】</B>冠攣縮性狭心症(coronary spastic angina:CSA)は, 冠攣縮により生じる狭心症であり, 小児期発症は極めて稀とされている. <B>【症例1】</B>11歳, 男児. 嘔気を伴う前胸部痛を自覚し, 入院時の心電図で有意な虚血性変化を認めなかったが, トロポニンT迅速検査が陽性であった. 入院8時間後の心電図 …
NAID 10030648983

Retrospective Comparison of Midterm Clinical and Angiographic Outcomes after the Implantation of Paclitaxel- and Sirolimus-Eluting Stents for de novo Coronary Complex Lesions in Nonrandomized Japanese Patients

Ishikawa Tetsuya,Nakano Yosuke,Mutoh Makoto
Internal Medicine 51(19), 2695-2701, 2012
… The inclusion criteria for patients with complex lesions were those with diabetes, those undergoing hemodialysis, and those with a low ejection fraction, as well as subjects who had lesions with severe calcification, ostiums of the right coronary and left circumflex arteries, and who underwent the side-branch bifurcation 2-stent technique. …
NAID 130002062019

★リンクテーブル★

リンク元	「回旋枝」「CX」
拡張検索	「left circumflex branch」
関連記事	「branch」「branched」「circumflex」「branching」「bran」

「回旋枝」

Artery: Circumflex branch of left coronary artery
	Base and diaphragmatic surface of heart. (Circumflex branch not visible, but would be near the coronary sinus.)
	Base of ventricles exposed by removal of the atria. (Circumflex branch not visible, but bifurcation of left coronary artery visible at left.)
Latin	ramus circumflexus arteriae coronariae sinistrae
Gray's	subject #142 547
Supplies	posterolateral left ventricle, anterolateral papillary muscle, the sinoatrial nodal artery in 38% of people.
Source	left coronary artery
Branches	left atrial branch; left marginal artery; posterolateral artery; sinuatrial nodal artery (in some people); posterior interventricular artery (in some people)