arteria mesenterica superior

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 town in northwest Wisconsin on Lake Superior across from Duluth
9. 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. 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）』「2015/10/05 18:17:36」(JST)

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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
Latin	arteria mesenterica superior
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
Gray's	p.606
MeSH	A07.231.114.565.755
Dorlands /Elsevier	a_61/12155072
TA	A12.2.12.053
FMA	14749
Anatomical terminology

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

• The pancreas and duodenum from behind. (Superior mesenteric artery labeled at upper right.)

• The celiac artery and its branches; the stomach has been raised and the peritoneum removed.

• Abdominal part of digestive tube and its attachment to the primitive or common mesentery. Human embryo of six weeks.

• Posterior abdominal wall, after removal of the peritoneum, showing kidneys, suprarenal capsules, and great vessels.

• The anterior surfaces of the kidneys, showing the areas of contact of neighboring viscera.

• Front of abdomen, showing surface markings for arteries and inguinal canal.

• Arteries and veins around the pancreas and spleen viewed dorsally.

• Colonic blood supply Hussam

• thumb|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

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• 1. 悪性腫瘍関連上大静脈症候群 malignancy related superior vena cava syndrome
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• 5. 上腸間膜動脈症候群 superior mesenteric artery syndrome

English Journal

• Ascending colon cancer with synchronous external iliac and inguinal lymph node metastases but without regional lymph node metastasis: a case report and brief literature review.

• Kitano Y1, Kuramoto M2, Masuda T1, Kuroda D1, Yamamoto K2, Ikeshima S2, Iyama KI3, Shimada S2, Baba H4.
• Surgical case reports.Surg Case Rep.2017 Dec;3(1):32. doi: 10.1186/s40792-017-0309-z. Epub 2017 Feb 20.
• PMID 28220469

• Non-occlusive mesenteric ischemia localized in the transverse colon: a case report.

• Murono K1, Ishihara S2, Kawai K2, Kaneko M2, Sasaki K2, Yasuda K2, Otani K2, Nishikawa T2, Tanaka T2, Kiyomatsu T2, Hata K2, Nozawa H2, Hayashi A3, Ushiku T3, Fukayama M3, Watanabe T2.
• Surgical case reports.Surg Case Rep.2017 Dec;3(1):23. doi: 10.1186/s40792-017-0299-x. Epub 2017 Feb 10.
• PMID 28188511

• Locally advanced pancreatic cancer successfully treated by distal pancreatectomy with celiac axis resection (DP-CAR) after S-1 with radiation therapy followed by gemcitabine/nab-paclitaxel therapy: a case report.

• Ariake K1, Motoi F2, Mizuma M2, Murakami K3, Takadate T2, Ohtsuka H2, Fukase K2, Masuda K2, Hayashi H2, Nakagawa K2, Sakata N2, Morikawa T2, Maeda S2, Naitoh T2, Egawa S4, Unno M2.
• Surgical case reports.Surg Case Rep.2017 Dec;3(1):15. doi: 10.1186/s40792-017-0290-6. Epub 2017 Jan 18.
• PMID 28101795

Japanese Journal

• Treatment of abdominal angina with percutaneous dilatation of an arteria mesenterica superior stenosis

• Cardiovasc Intervent Radiol 3, 43-44, 1980
• NAID 30025654335

Related Links

• Arteria Mesenterica Superior

Arteria Mesenterica Superior

• Arteria mesenterica superior - RightDiagnosis.com

Arteria mesenterica superior information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Arteria mesenterica superior Description of Arteria mesenterica superior

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★リンクテーブル★

リンク元	「上腸間膜動脈」
関連記事	「superior」「superio」「mesenteric」

「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.

「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