Arterial arcades
Arterial arcades | |
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![]() Loop of small intestine showing distribution of intestinal arteries
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Dorlands /Elsevier |
a_56/12149518 |
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TH | {{#property:P1694}} |
TE | {{#property:P1693}} |
FMA | {{#property:P1402}} |
Anatomical terminology [[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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The arterial arcades (intermesenteric arterial anastomoses or Riolan arcades[1]) are loops of arteries around the jejunum and ileum.
Nearest the duodenum the mesenteric loops are primary, the vasa recta are long and regular in distribution, and the translucent spaces (lunettes) are extensive.
Toward the ileocolic junction, secondary and tertiary loops are observed, the vessels are smaller and become obscured by numerous fat-tabs.
The diagrams below show the arrangement and variations of the loops of the mesenteric vessels for various segments of the small intestine of average length:
Additional images
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Arterial arcades.JPG
Arterial arcades
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Loop of small intestine showing distribution of intestinal arteries
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Gray1066.png
Loop of small intestine showing distribution of intestinal arteries
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Loop of small intestine showing distribution of intestinal arteries
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Gray1068.png
Loop of small intestine showing distribution of intestinal arteries
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Loop of small intestine showing distribution of intestinal arteries
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Gray1070.png
Loop of small intestine showing distribution of intestinal arteries
See also
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
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External links
- Anatomy photo:39:04-0102 at the SUNY Downstate Medical Center - "Intestines and Pancreas: Branches of Superior Mesenteric Artery"
- Anatomy image:7916 at the SUNY Downstate Medical Center
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