WordNet

located at or near or behind a part or near the end of a structure
a major thoroughfare that bears important traffic
a blood vessel that carries blood from the heart to the body (同)arteria, arterial blood vessel
coming down or downward

PrepTutorEJDIC

《名詞の前にのみ用いて》(生物学的に,位置が)後ろの,後部の / (時間・順序が)後の;(…より)後の《+『to』+『名』》(later) / しり(buttocks)
動脈 / (道路・水路・鉄道などの)勘線,(通信の)主チャンネル

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/09/27 19:55:42」(JST)

wiki en

In the coronary circulation, the posterior interventricular artery (PIV) or posterior descending artery (PDA) is an artery running in the posterior interventricular sulcus to the apex of the heart where it meets with the anterior interventricular artery. It supplies the posterior 1/3 of the interventricular septum. The remaining anterior 2/3 is supplied by the anterior interventricular artery which is a septal branch of the left anterior descending artery, which is a branch of left coronary artery.

It is typically a branch of the right coronary artery (70%, known as right dominance). Alternately, the PIV can be a branch of the circumflex coronary artery (10%, known as left dominance) which itself is a branch of the left coronary artery. It can also be supplied by an anastomosis of the left and right coronary artery (20%, known as co-dominance).^[2]

Variants have been reported.^[3]

The anatomical position of the artery is not really posterior, but inferior. The terminology posterior is based on viewing the heart from the "Valentine" position, not by the heart's actual position in the body.^[4]

Additional images

Coronary arteries (labeled in red text) and other major landmarks (in blue text). Posterior descending artery is labeled at left.

Human heart with coronary arteries

References

^ Nerantzis CE, Lefkidis CA, Smirnoff TB, Agapitos EB, Davaris PS (November 1998). "Variations in the origin and course of the posterior interventricular artery in relation to the crux cordis and the posterior interventricular vein: an anatomical study". Anat. Rec. 252 (3): 413–7. doi:10.1002/(SICI)1097-0185(199811)252:3<413::AID-AR9>3.0.CO;2-9. PMID 9811219.
^ Fuster, V; Alexander RW; O'Rourke RA (2001). Hurst's The Heart (10th ed.). McGraw-Hill. p. 53. ISBN 0-07-135694-0.
^ Topaz O, Holdaway B, Bailey NT, Vetrovec GW (1997). "Anatomic variant of the posterior interventricular coronary artery: implications for coronary angioplasty in acute myocardial infarction". Clin Anat. 10 (5): 303–6. doi:10.1002/(SICI)1098-2353(1997)10:5<303::AID-CA2>3.0.CO;2-R. PMID 9283726.
^ http://onlinelibrary.wiley.com/doi/10.1111/j.0021-8782.2004.00330.x/full

External links

-456130501 at GPnotebook
Anatomy figure: 20:04-04 at Human Anatomy Online, SUNY Downstate Medical Center - "Posterior view of the heart."
Image
Image at guidant.com

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Shin YW1, Jung KH2, Moon J1, Lee ST1, Lee SK1, Chu K2, Roh JK1.
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Technical and anatomical factors affecting the size of the branch pulmonary arteries following first-stage Norwood palliation for hypoplastic left heart syndrome.

Nassar MS1, Bertaud S2, Goreczny S3, Greil G4, Austin CB3, Salih C3, Anderson D3, Hussain T4.
Interactive cardiovascular and thoracic surgery.Interact Cardiovasc Thorac Surg.2015 May;20(5):631-5. doi: 10.1093/icvts/ivv002. Epub 2015 Feb 13.
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PMID 25681509

Japanese Journal

Should Right Coronary Bypass Grafts Be Anastomosed Proximal or Distal to the Crux? A Comparison of Graft Patencies

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Annals of thoracic and cardiovascular surgery 18(4), 331-337, 2012-08-01
… Aim: Late occlusion of bypass grafts is one of the main issues associated with long-term survival after coronary artery bypass grafting (CABG) surgery. … Patients and Method: 92 patients who underwent CABG operation including a right coronary artery (RCA) bypass using saphenous venous graft (SVG) between January 2003 and July 2010 were evaluated retrospectively. …
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「冠状動脈」

Posterior interventricular artery
	Base and diaphragmatic surface of heart. (Posterior descending artery not visible, but it runs near the middle cardiac vein, which is labeled at the bottom.)
	ARTERIES:; RCA = right coronary; AB = atrial branches; SANB = sinuatrial nodal; RMA = right marginal; LCA = left coronary; CB = circumflex branch; LAD/AIB = anterior interventricular; LMA = left marginal; PIA/PDA = posterior descending; AVN = atrioventricular nodal; ; VEINS:; SCV = small cardiac; ACV = anterior cardiac; AIV/GCV = great cardiac; MCV = middle cardiac; CS = coronary sinus
Details
Source	right coronary artery
Vein	middle cardiac vein, posterior interventricular vein
Supplies	ventricles; interventricular septum
Identifiers
Latin	ramus interventricularis posterior arteriae coronariae dextrae
TA	A12.2.03.108
FMA	3840
	Anatomical terminology; [edit on Wikidata]

　　[★]

英: coronary artery (M)
ラ: arteria coronaria
同: 冠動脈
関: 心臓

図：N.212

枝の命名法：http://www.m-junkanki.com/case_study/lecture7/CAGnameRCA.html。http://www.sakai-iin.com/image/CAG.pdf

右冠状動脈

1 proximal
2 middle
3 distal
4

4AV AV node artery 房室結節枝
4PD PD descending artery 後下行枝

左冠状動脈

5 left main trunk LMT 左主幹部
6 proximal 前下行枝の第一中隔枝(first major septal branch)まで
7 middle septal branch
8 dista
9 first diagonal branch D1 第1対角枝
10 second diagonal branch D2 第2対角枝
11 proximal 回旋枝から鈍縁枝まで
12 obtuse maginal branch OM 鈍縁枝
13 distal 鈍縁枝以遠で後房室間溝を走行するもの
14 posterolateral PL 側壁枝
15 posterior descending artery PD

枝

右冠状動脈

洞房結節枝
右縁枝
後下行枝 = 後室間枝
房室結節枝

左冠状動脈

左前下行枝

対角枝

回旋枝

左縁枝

冠動脈の血流 (SPC.227)

冠動脈血からの酸素除去能は高い→酸素需要を上げるためには冠動脈血流量を増やすことによって達成可能
冠動脈血流量∝拡張期大動脈圧&拡張期の時間
冠動脈血流量∝(冠血管抵抗)^-1

PHD.102

Localization of Myocardial Infarction
Anatomic Site	Lead with Abnormal ECG Complexes	Coronary Artery Most Often Responsible
inferior	II, III, aVF	RCA
anteroseptal	V1-V2	LAD
anteroapical	V3-V4	LAD(distal)
anterolateral	V5-V6, I, aVL	CFX
posterior	V1-V2(tall R wave, not Q wave)	RCA

PHD.191

Blood Supply of the Conduction System
Conduction Pathway		Primary Arterial Supply
SA node		RCA (70%)
AV node		RCA (85%)
Bundle of His		LAD
RBB	Proximal portion	LAD
	Distal portion	RCA
LBB	Left anterior fascicle	LAD
	Left posterior fascicle	LAD
		PDA

「後室間枝」

　　[★]

英: posterior interventricular branch (Z,KL), posterior interventricular branch artery (M)
同: 後下行枝 posterior descending branch PD, posterior descending artery PDA
関: 心臓

由来

右冠状動脈

走行

右冠状動脈が後室間溝に入り、心尖部に向かう

分布

(M.91,92)

Henry Gray (1825-1861). Anatomy of the Human Body. 1918.

「PDA」

　　[★]

「posterior」

　　[★]

adj.

後側の、後方の、後の

関: after、afterward、afterwards、backward、behind、following、late、post、posteriorly、subsequent

「descending」

　　[★]

下行性の、下行する

[pmid9811219-1] Nerantzis CE, Lefkidis CA, Smirnoff TB, Agapitos EB, Davaris PS (November 1998). "Variations in the origin and course of the posterior interventricular artery in relation to the crux cordis and the posterior interventricular vein: an anatomical study". Anat. Rec. 252 (3): 413–7. doi:10.1002/(SICI)1097-0185(199811)252:3<413::AID-AR9>3.0.CO;2-9. PMID 9811219.

[Hurst-2] Fuster, V; Alexander RW; O'Rourke RA (2001). Hurst's The Heart (10th ed.). McGraw-Hill. p. 53. ISBN 0-07-135694-0.

[pmid9283726-3] Topaz O, Holdaway B, Bailey NT, Vetrovec GW (1997). "Anatomic variant of the posterior interventricular coronary artery: implications for coronary angioplasty in acute myocardial infarction". Clin Anat. 10 (5): 303–6. doi:10.1002/(SICI)1098-2353(1997)10:5<303::AID-CA2>3.0.CO;2-R. PMID 9283726.

[4] ttp://onlinelibrary.wiley.com/doi/10.1111/j.0021-8782.2004.00330.x/full

リンク元	「冠状動脈」「後室間枝」「PDA」
関連記事	「posterior」「descending」

匿名

検索

案内

案内

posterior descending artery