superior mesenteric artery

上腸間膜動脈

WordNet

1. of or characteristic of high rank or importance; "a superior ruler"
2. one of greater rank or station or quality (同)higher-up, superordinate
3. the head of a religious community
4. (often followed by `to'
5. (sometimes followed by `to'
6. having an orbit farther from the sun than the Earths orbit; "Mars and Jupiter are the closest in of the superior planets"
7. of high or superior quality or performance; "superior wisdom derived from experience"; "superior math students"
8. a major thoroughfare that bears important traffic
9. a blood vessel that carries blood from the heart to the body (同)arteria, arterial blood vessel
10. a town in northwest Wisconsin on Lake Superior across from Duluth
11. of or relating to or located in a mesentery

PrepTutorEJDIC

1. (程度・質が)『普通(平均)以上に優れた』,優秀な / (地位・階級などが)『上位の』,上級の,目上の / (数量的に)勝る,優勢な / (用動が)偉ぶった,高慢な / 《補語にのみ用いて》(…に)屈しない,動じない《+to+名》 / 《名詞の前にのみ用いて》(動・植物の器官や部分が)上位の,上についている / (地位・階級などが)『上位の人』,上役,上司,先輩 / 『いっそう優れた人』 / 《しばしば S-》修道院長
2. 動脈 / (道路・水路・鉄道などの)勘線,(通信の)主チャンネル
3. スペリオル湖(lake~;北米五大湖中で最北最大のもの)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/29 05:51:23」(JST)

wiki en

[Wiki en表示]

Superior mesenteric artery
Frontal view of the superior mesenteric artery and its branches. The large vessel (blue) beside the SMA is the superior mesenteric vein. A considerable number of different branching patterns exist.
3D-rendered computed tomography of abdominal aortic branches, showing exit of superior mesenteric artery between the kidneys.
Details
Precursor	vitelline arteries
Source	abdominal aorta
Branches	inferior pancreaticoduodenal middle colic right colic intestinal branches (jejunal, ileal) ileocolic
Vein	superior mesenteric vein
Supplies	intestine
Identifiers
Latin	arteria mesenterica superior
MeSH	A07.231.114.565.755
Dorlands /Elsevier	a_61/12155072
TA	A12.2.12.053
FMA	14749
Anatomical terminology [edit on Wikidata]

In human anatomy, the superior mesenteric artery (SMA) arises from the anterior surface of the abdominal aorta, just inferior to the origin of the celiac trunk, and supplies the intestine from the lower part of the duodenum through two-thirds of the transverse colon, as well as the pancreas.

Structure

It arises anterior to lower border of vertebra L1 in an adult. It is usually 1cm lower than the celiac trunk. It initially travels in an anterior/inferior direction, passing behind/under the neck of the pancreas and the splenic vein. Located under this portion of the superior mesenteric artery, between it and the aorta, are the following:

• left renal vein - travels between the left kidney and the inferior vena cava (can be compressed between the SMA and the abdominal aorta at this location, leading to nutcracker syndrome).
• the third part of the duodenum, a segment of the small intestines (can be compressed by the SMA at this location, leading to superior mesenteric artery syndrome).
• uncinate process of pancreas - this is a small part of the pancreas that hooks around the SMA.

The SMA typically runs to the left of the similarly named vein, the superior mesenteric vein. After passing the neck of the pancreas it starts giving off its branches.

Branches

Branch	Supplies
inferior pancreaticoduodenal artery	head of the pancreas and to the ascending and inferior parts of the duodenum
intestinal arteries	branches to ileum, branches to jejunum
ileocolic artery	supplies last part of ileum, cecum, and appendix
right colic artery	to ascending colon
middle colic artery	to the transverse colon

The middle, right, and ileocecal branches anastomose with each other to form a marginal artery along the inner border of the colon. This artery is completed by branches of the left colic which is a branch of the inferior mesenteric artery.

Clinical relevance

• Compared to other vessels of similar size, the SMA is largely spared from the effects of atherosclerosis. This may be due to protective haemodynamic conditions.
• Acute occlusion of the SMA almost invariably leads to intestinal ischemia and often has devastating consequences, with up to 80% of SMA occlusions leading to death.
• The SMA can compress the left renal vein, leading to nutcracker syndrome; and/or the third (horizontal) part of the duodenum, leading to superior mesenteric artery syndrome.

Additional images

• Superior mesenteric artery

• Abdominal cavity.Superior mesenteric artery.Deep dissection.

References

External links

• Anatomy figure: 39:02-01 at Human Anatomy Online, SUNY Downstate Medical Center - "Branches of the inferior mesenteric artery."
• Anatomy photo:40:11-0102 at the SUNY Downstate Medical Center - "Posterior Abdominal Wall: Branches of the Abdominal Aorta"
• Anatomy image:8008 at the SUNY Downstate Medical Center
• Anatomy image:8404 at the SUNY Downstate Medical Center
• Anatomy image:8815 at the SUNY Downstate Medical Center
• Anatomy image:8841 at the SUNY Downstate Medical Center
• Atlas image: abdo_wall70 at the University of Michigan Health System - "Posterior Abdominal Wall, Dissection, Anterior View"
• sup&infmesentericart at The Anatomy Lesson by Wesley Norman (Georgetown University)

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.

• 1. 上腸間膜動脈症候群 superior mesenteric artery syndrome
• 2. 6ヶ月以上の乳幼児、小児、および思春期における体重減少の評価 evaluation of weight loss in infants over six months of age children and adolescents
• 3. 腹部大動脈瘤の血管内修復 endovascular repair of abdominal aortic aneurysm
• 4. 成人患者における外傷性胃腸障害 traumatic gastrointestinal injury in the adult patient
• 5. 右および拡大右結腸切除：開放術 right and extended right colectomy open technique

English Journal

• Ultrasound assessment of mesenteric blood flow in neonates with hypoplastic left heart before and after hybrid palliation.

• Cozzi CT1, Galantowicz M2, Cheatham JP2, Nicholson L2, Fernandez R2, Backes CH1, McCaw C2, Cua CL2.
• Cardiology in the young.Cardiol Young.2015 Aug;25(6):1074-9. doi: 10.1017/S1047951114001607. Epub 2014 Sep 12.
• BACKGROUND: Altered mesenteric perfusion may be a contributor to the development of necrotising enterocolitis in patients with hypoplastic left heart syndrome. The goal of this study was to document mesenteric flow patterns in patients with hypoplastic left heart syndrome pre- and post-hybrid proced
• PMID 25216030

• Protective effects of butyrate on intestinal ischemia-reperfusion injury in rats.

• Qiao Y1, Qian J2, Lu Q3, Tian Y4, Chen Q1, Zhang Y5.
• The Journal of surgical research.J Surg Res.2015 Aug;197(2):324-30. doi: 10.1016/j.jss.2015.04.031. Epub 2015 Apr 16.
• BACKGROUND: Butyrate is normally fermented from undigested fiber by intestinal microflora. The goal of the present study was to determine the effects of butyrate and its underlying mechanisms on intestinal injury in a rat model of ischemia and reperfusion (I/R).METHODS: Male Sprague-Dawley rats were
• PMID 25976850

• Complicated type B aortic dissection causing ischemia in the celiac and inferior mesenteric artery distribution despite patent superior mesenteric artery bypass.

• Afifi RO1, Zhu Y2, Leake SS3, Kott A4, Azizzadeh A1, Estrera AL1, Safi HJ1, Charlton-Ouw KM5.
• Vascular.Vascular.2015 Aug;23(4):422-6. doi: 10.1177/1708538114548262. Epub 2014 Oct 8.
• Mortality rates associated with acute type B aortic dissection (ABAD) complicated by malperfusion remains significant. Optimal management of patients with ABAD is still debatable. We present a case report of a 50-year-old man who was admitted due to ABAD. He was treated medically with his pain resol
• PMID 25298133

Japanese Journal

• 臨床研究・症例報告 摂食障害経過中に上腸間膜動脈症候群を発症した1例 (消化器疾患)

• 小児科臨床 69(5), 823-826, 2016-05
• NAID 40020801745

• 症例 腹腔鏡下胃空腸吻合術を施行した上腸間膜動脈症候群の1例

• 外科 = Surgey : 臨床雑誌 78(4), 417-421, 2016-04
• NAID 40020777440

• 腸管虚血を合併したStanford A型急性大動脈解離に対する二期的手術 (特集 急性大動脈解離の外科治療)

• 胸部外科 = The Japanese journal of thoracic surgery 69(4), 286-291, 2016-04
• NAID 40020777334

Related Links

• Superior mesenteric artery syndrome.

CIMMINO CV. Arteriomesenteric occlusion of the duodenum: an entity? Radiology. 1961 May; 76:828–829. [PubMed] CIMMINO CV. The status of the syndrome of arteriomesenteric occlusion of the duodenum. A critical review. Va ...

• Superior mesenteric artery syndrome

Superior mesenteric artery syndrome An abdominal computed tomography (CT) scan with contrast revealed the narrowing of the third portion of the duodenum compressed by the superior mesenteric artery (SMA), with dilation of the ...

Related Pictures

---

★リンクテーブル★

リンク元	「SMA」「上腸間膜動脈」
拡張検索	「acute occlusion of the superior mesenteric artery」「superior mesenteric artery syndrome」
関連記事	「superior」「superio」「mesenteric」

「SMA」

　　[★]

• 脊髄性筋萎縮症 spinal muscular atrophy
• 上腸間膜動脈 superior mesenteric artery
• 補足運動野 supplementary motor area
• 自発運動活性 spontaneous motor activity = locomotor activity

「上腸間膜動脈」

　　[★]

英

superior mesenteric artery (Z), SMA

ラ

arteria mesenterica superior

由来

• 腹大動脈

走行

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

「acute occlusion of the superior mesenteric artery」

　　[★] 急性上腸間膜動脈閉塞症

「superior mesenteric artery syndrome」

　　[★] 上腸間膜動脈症候群

「superior」

　　[★]

• adj.

• 優位な, 優れた, 上の, 上方の, 上位の

関

dominance、dominant、dominantly、epi、epistasis、epistatic、excellent、good、predominately、senior、superio、superiorly、supra

　 　 　 　 　 　 　 　

「superio」

　　[★]

• comb form.

• 上位、上

関

epi、epistasis、epistatic、senior、superior、supra

「mesenteric」

　　[★]

• adj.

• 腸間膜の

関

mesenterium、mesentery