WordNet
- toward or on the left; also used figuratively; "he looked right and left"; "the political party has moved left"
- a turn toward the side of the body that is on the north when the person is facing east; "take a left at the corner"
- the hand that is on the left side of the body; "jab with your left" (同)left_hand
- those who support varying degrees of social or political or economic change designed to promote the public welfare (同)left wing
- location near or direction toward the left side; i.e. the side to the north when a person or object faces east; "she stood on the left"
- intended for the left hand; "I rarely lose a left-hand glove" (同)left-hand
- being or located on or directed toward the side of the body to the west when facing north; "my left hand"; "left center field"; "the left bank of a river is bank on your left side when you are facing downstream"
- of or belonging to the political or intellectual left
- (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower
- one or more circles of light seen around a luminous object
- a long cigar with blunt ends
- (anatomy) any structure that resembles a crown in shape
- a major thoroughfare that bears important traffic
- a blood vessel that carries blood from the heart to the body (同)arteria, arterial blood vessel
- a diacritical mark (^) placed above a vowel in some languages to indicate a special phonetic quality
- surrounding like a crown (especially of the blood vessels surrounding the heart); "coronary arteries"
PrepTutorEJDIC
- leaveの過去・過去分詞
- 《名詞の前にのみ用いて》『左の』,左方の / 《しばしばl-》(政治上の)左翼の,左派の,革新派の / 左に,左方に / 《通例 the ~》『左』,左方,左側 / 《しばしばthe L-》左翼の政党(団体),左派 / 〈U〉(野球で)左翼,レフト(left field);〈C〉左翼手(left fielder) / 〈C〉(ボクシングで)左手打ち
- コロナ(皆既日食のときに見える光冠) / (太陽・月などの)かさ
- 動脈 / (道路・水路・鉄道などの)勘線,(通信の)主チャンネル
- 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)
- 冠状動脈の / 心臓の / 冠状動脈血栓(けっせん)症(coronary thrombosis)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/07/29 00:50:52」(JST)
[Wiki en表示]
"Circumflex branch" redirects here. For the circumflex branch of the posterior tibial artery, see Circumflex fibular artery.
| Circumflex branch of left coronary artery |
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Base and diaphragmatic surface of heart. (Circumflex branch not visible, but would be near the coronary sinus.)
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Base of ventricles exposed by removal of the atria. (Circumflex branch not visible, but bifurcation of left coronary artery visible at left.)
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| Details |
| Latin |
Ramus circumflexus arteriae coronariae sinistrae |
| 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) |
| Supplies |
Posterolateral left ventricle, anterolateral papillary muscle, the sinoatrial nodal artery in 38% of people. |
| Identifiers |
| Gray's |
p.547 |
Dorlands
/Elsevier |
r_02/12689380 |
| TA |
A12.2.03.206 |
| FMA |
3895 |
| Anatomical terminology |
The "LCX", or left circumflex artery (or circumflex artery, or circumflex branch of the left coronary artery) is an artery of the heart.
Contents
- 1 Course
- 2 Branches
- 3 Structures supplied
- 4 Additional images
- 5 References
- 6 External links
Course
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. There have been multiple anomalies described, for example the left circumflex having an aberrant course from the right coronary artery. [1]
Branches
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.[2] When the left circumflex supplies the posterior descending artery in those 15% of cases, it is known as a left dominant circulation.
Structures supplied
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
Coronary arteries (labeled in red text) and other major landmarks (in blue text).
Left circumflex artery is labeled at right.
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Human heart with coronary arteries
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Heart coronary territories
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Heart left lateral coronaries diagram
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
- ^ PAGE, H. L.; ENGEL, H. J.; CAMPBELL, W. B.; THOMAS, C. S. (1 October 1974). "Anomalous Origin of the Left Circumflex Coronary Artery: Recognition, Angiographic Demonstration and Clinical Significance". Circulation 50 (4): 768–773. doi:10.1161/01.CIR.50.4.768.
- ^ 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
- Anatomy figure: 20:03-03 at Human Anatomy Online, SUNY Downstate Medical Center - "Anterior view of the heart."
- Anatomy figure: 20:04-01 at Human Anatomy Online, SUNY Downstate Medical Center - "Posterior view of the heart."
- Anatomy photo:20:09-0104 at the SUNY Downstate Medical Center - "Heart: The Left Coronary Artery and its Branches"
- -442892231 at GPnotebook
- Image at merck.com
- Overview and diagrams at cardiologysite.com
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Arteries of the torso and chest
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| Pulmonary |
- Right pulmonary artery
- Left pulmonary artery (Ligamentum arteriosum)
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| Coronary |
- Right coronary: SA nodal
- AV nodal
- Atrial
- Right marginal
- Posterior interventricular
- Left coronary: Anterior interventricular
- Left circumflex (Left marginal)
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| Aorta |
- Ascending aorta
- Arch of aorta
- Descending aorta
- Thoracic aorta
- Abdominal aorta
- Aortic body
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| Arch of aorta |
| Brachiocephalic |
- Thyreoidea ima
- Right subclavian
- Right common carotid
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| Left common carotid |
- External carotid
- Internal carotid
- Carotid body
- Carotid sinus
- Carotid bifurcation
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| Left subclavian |
- Internal thoracic: Anterior intercostal
- Thymic
- Pericardiacophrenic
- Perforating branches
- terminal (Musculophrenic, superior epigastric)
- Costocervical trunk: Highest intercostal (Posterior intercostal 1–2)
- Deep cervical
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| Descending aorta |
- visceral: Bronchial
- Esophageal
- Mediastinal
- parietal: Posterior intercostal 3 * 11
- Subcostal
- Superior phrenic
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Index of the circulatory system
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| Description |
- Anatomy
- Arteries
- head and neck
- arms
- chest
- abdomen
- legs
- Veins
- head and neck
- arms
- chest
- abdomen and pelvis
- legs
- Development
- Cells
- Physiology
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| Disease |
- Congenital
- Neoplasms and cancer
- Lymphatic vessels
- Injury
- Vasculitis
- Other
- Symptoms and signs
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| Treatment |
- Procedures
- Drugs
- beta blockers
- channel blockers
- diuretics
- nonsympatholytic vasodilatory antihypertensives
- peripheral vasodilators
- renin–angiotensin system
- sympatholytic antihypertensives
- vasoprotectives
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UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- Application and outcomes of a hybrid approach to chronic total occlusion percutaneous coronary intervention in a contemporary multicenter US registry.
- Christopoulos G1, Karmpaliotis D2, Alaswad K3, Yeh RW4, Jaffer FA5, Wyman RM5, Lombardi WL6, Menon RV1, Grantham JA7, Kandzari DE8, Lembo N8, Moses JW2, Kirtane AJ2, Parikh M2, Green P2, Finn M2, Garcia S9, Doing A10, Patel M11, Bahadorani J11, Tarar MN1, Christakopoulos GE1, Thompson CA12, Banerjee S1, Brilakis ES13.
- International journal of cardiology.Int J Cardiol.2015 Nov 1;198:222-8. doi: 10.1016/j.ijcard.2015.06.093. Epub 2015 Jun 27.
- BACKGROUND: A hybrid approach to chronic total occlusion (CTO) percutaneous coronary intervention (PCI) prioritizing and combining all available crossing techniques was developed to optimize procedural efficacy, efficiency, and safety, but there is limited published data on its outcomes.METHODS: We
- PMID 26189193
- Patient-specific tube-voltage selection at coronary CT angiography based on the combination of X-ray attenuation on scout views and body mass index: how can appropriate radiation dose be achieved?
- Noto D1, Funama Y2, Utsunomiya D3, Oda S3, Yuki H3, Yamashita Y3.
- Acta radiologica (Stockholm, Sweden : 1987).Acta Radiol.2015 Oct;56(10):1171-9. doi: 10.1177/0284185114549826. Epub 2014 Sep 29.
- BACKGROUND: Body weight, body mass index (BMI), and scout X-ray radiographic attenuation can be used to predict image noise on computed tomographic coronary angiography (CTCA) images.PURPOSE: To use a formula to predict patient-specific image noise and then select an appropriate CTCA patient-specifi
- PMID 25267922
Japanese Journal
- PET/CT scanning with 3D acquisition is feasible for quantifying myocardial blood flow when diagnosing coronary artery disease
- Differential Incidence and Morphology of Spasm According to Coronary Arterial Location by Intracoronary Ergonovine Spasm Provocation Testing
- Circulation journal : official journal of the Japanese Circulation Society 81(6), 831-836, 2017-06
- NAID 40021197141
Related Links
- The Circumflex (Cx) coronary artery is a branch of the left main coronary artery after the latter runs it's course in between the aorta and the main pulmonary artery,. The Cx travels in the left atrio-ventricular groove that ...
- artery [ahr´ter-e] a vessel through which the blood passes away from the heart to various parts of the body. The wall of an artery consists typically of an outer coat (tunica adventitia), a middle coat (tunica media), and an inner coat (tunica intima
★リンクテーブル★
[★]
- 同
- left circumflex branch, LCx
- 同
- LCx, left circumflex branch
- 英
- left circumflex
[★]
左回旋枝
- 関
- left circumflex artery、left circumflex coronary artery
[★]
- 関
- leave
[★]
- 関
- coronary artery、coronary vessel
[★]
左回旋枝
- 関
- left circumflex artery、left circumflex coronary artery
[★]
- 関
- rotatory
[★]
コロナ帯