左前下行枝 LAD
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
- of or near the head end or toward the front plane of a body
- earlier in time (同)prior
- a major thoroughfare that bears important traffic
- a blood vessel that carries blood from the heart to the body (同)arteria, arterial blood vessel
- 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
- (場所などが)前の,前部の;(…より)前に位置する《+『to』+『名』》 / (時・事件などが)以前の,先の;(…より)前の《+『to』+『名』》
- 動脈 / (道路・水路・鉄道などの)勘線,(通信の)主チャンネル
- 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）』「2014/03/18 09:27:43」(JST)
[Wiki en表示]
| Artery: Anterior interventricular branch of left coronary artery |
Sternocostal surface of heart. (Anterior descending branch labeled at upper right.)
|
| Latin |
ramus interventricularis anterior arteriae coronariae sinistrae |
| Gray's |
p.547 |
| Supplies |
anterolateral myocardium, apex, interventricular septum, 45-55% of the left ventricle (LV) |
| Source |
left coronary artery |
| Branches |
septals, diagonals |
The "LAD", or left anterior descending artery (or anterior interventricular branch of the left coronary artery, or anterior descending branch) is an artery of the heart.
Contents
- 1 Course
- 2 Supply
- 3 Branches
- 4 "The Widowmaker"
- 5 Additional images
- 6 External links
Course[edit]
It passes at first behind the pulmonary artery and then comes forward between that vessel and the left auricula to reach the anterior interventricular sulcus, along which it descends to the incisura apicis cordis.
In 78% of cases, it reaches the apex of the heart.
Supply[edit]
It supplies the anterolateral myocardium, apex, and interventricular septum. The LAD typically supplies 45-55% of the left ventricle (LV).
Branches[edit]
The LAD gives off two types of branches: septals and diagonals.
- Septals originate from the LAD at 90 degrees to the surface of the heart, perforating and supplying the anterior 2/3rds of the interventricular septum.
- Diagonals run along the surface of the heart and supply the lateral wall of the left ventricle and the anterolateral papillary muscle.
Tight, critical stenosis (95%) of the proximal LAD in a patient with Wellens' Warning
"The Widowmaker"[edit]
Because the LAD provides much of the bloodflow for the left ventricle, which in turn provides much of the propulsive force for ejecting oxygenated blood to systemic circulation via the aorta, blockage of this artery is particularly associated with mortality. In the medical community ischemic heart attacks associated with this blood vessel are colloquially called "the Widowmaker."
Additional images[edit]
Coronary arteries (labeled in red text) and other major landmarks (in blue text).
Left anterior descending (or interventricular) artery is labeled at right.
-
The arch of the aorta, and its branches.
-
-
-
Human heart with coronary arteries
-
Heart coronary territories
External links[edit]
- anterior+interventricular+branch%20of%20left%20coronary%20artery at eMedicine Dictionary
- Anatomy photo:20:09-0102 at the SUNY Downstate Medical Center - "Heart: The Left Coronary Artery and its Branches"
- SUNY Figs 20:03-08 - "Anterior view of the heart."
- 168165435 at GPnotebook
This article incorporates text from a public domain edition of Gray's Anatomy.
|
List of arteries of torso · chest (TA A12.2.01–04,11, GA 6.598)
|
|
| Pulmonary |
- Right pulmonary artery
- Left pulmonary artery (Ligamentum arteriosum)
|
|
| Coronary |
- Right coronary: SA nodal
- AV nodal
- Atrial
- Right marginal
- Posterior interventricular
Left coronary: Anterior interventricular
- Left circumflex (Left marginal)
|
|
Ascending aorta/
aortic arch |
|
Brachiocephalic
|
- Thyreoidea ima
- Right subclavian
- Right common carotid
|
|
|
Left common carotid
|
- External carotid
- Internal carotid
- Carotid body
- Carotid sinus
- Carotid bifurcation
|
|
|
Left subclavian
|
- Internal thoracic: Anterior intercostal
- Thymic
- Pericardiacophrenic
- Perforating branches
- terminal (Musculophrenic, superior epigastric)
- Kacheshmarova's artery (Arteria xiphia (Arteria africana))
- Costocervical trunk: Highest intercostal (Posterior intercostal 1–2)
- Deep cervical
|
|
|
Other
|
|
|
|
Descending/
thoracic aorta |
- visceral: Bronchial
- Esophageal
- Mediastinal
- parietal: Posterior intercostal 3·11
- Subcostal
- Superior phrenic
|
|
|
|
anat (a:h/u/t/a/l,v:h/u/t/a/l)/phys/devp/cell/prot
|
noco/syva/cong/lyvd/tumr, sysi/epon, injr
|
proc, drug (C2s+n/3/4/5/7/8/9)
|
|
|
|
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
- Short-term clinical outcomes after hybrid coronary revascularization versus off-pump coronary artery bypass for the treatment of multivessel or left main coronary artery disease: a meta-analysis.
- Hu FB1, Cui LQ.
- Coronary artery disease.Coron Artery Dis.2015 Sep;26(6):526-534.
- BACKGROUND: Hybrid coronary revascularization (HCR) and off-pump coronary artery bypass grafting (OPCABG) are both feasible, less invasive techniques for coronary revascularization. Although both techniques utilize the left internal mammary artery to left anterior descending artery graft, HCR uses d
- PMID 26018329
- The complex issue of TIMI frame count in patients with Takotsubo syndrome.
- Madias JE1.
- International journal of cardiology.Int J Cardiol.2015 Sep 1;194:65. doi: 10.1016/j.ijcard.2015.05.090. Epub 2015 May 19.
- PMID 26011267
- Advanced glycation end products induced immune maturation of dendritic cells controls heart failure through NF-κB signaling pathway.
- Cao W1, Chen J2, Chen Y3, Chen S2, Chen X2, Huang H4, Liu P5.
- Archives of biochemistry and biophysics.Arch Biochem Biophys.2015 Aug 15;580:112-20. doi: 10.1016/j.abb.2015.07.003. Epub 2015 Jul 8.
- BACKGROUND AND AIMS: It is commonly believed that diabetes is an important contributor to heart failure (HF) development. However, the detail effect of diabetogenesis on HF is controversy: both beneficial and harmful roles were reported. In the present study, we aim to explore the unambiguous action
- PMID 26163748
Japanese Journal
- 化学療法施行中に重症心筋梗塞を発症した後腹膜原発胚細胞腫の1例
- Impact of Pressure Signal Drift on Fractional Flow Reserve-Based Decision-Making for Patients With Intermediate Coronary Artery Stenosis
- Impact of Pressure Signal Drift on Fractional Flow Reserve-Based Decision-Making for Patients With Intermediate Coronary Artery Stenosis
Related Links
- The left anterior descending (LAD, interventricular) artery appears to be a direct continuation of the left coronary artery which descends into the anterior interventricular groove. ... Location: The left anterior descending (LAD ...
- The aortic valve has three leaflets, each having a cusp or cup-like configuration. These are known as the left coronary (LC), right coronary (RC) and the posterior non-coronary (NC) cusps. The latter is called a non ...
★リンクテーブル★
[★]
- 英
- left anterior descending artery LAD, left anterior descending coronary artery, left anterior descending branch
- 関
- 心臓
[★]
前下行枝、前室間枝
- 関
- anterior interventricular branch、LAD、left anterior descending coronary artery
[★]
前室間枝、前下行枝
- 関
- anterior descending branch、LAD、left anterior descending coronary artery
[★]
- 関
- leave
[★]
- 関
- anterioris、anteriorly、before、fore、former、pre、prior
[★]
- 関
- coronary artery、coronary vessel
[★]
[★]
コロナ帯