Arterial arcades: Difference between revisions
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| Name = Arterial arcades |
| Name = Arterial arcades |
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| Caption = Loop of [[small intestine]] showing distribution of [[intestinal arteries]] |
| Caption = Loop of [[small intestine]] showing distribution of [[intestinal arteries]] |
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The '''arterial arcades''' ('''intermesenteric arterial anastomoses''' or '''Riolan arcades'''<ref name="medilexicon">{{Cite web|url=http://www.medilexicon.com/medicaldictionary.php?t=5937|publisher=MediLexicon International Ltd|title=Definition: 'Intestinal Arterial Arcades'|accessdate=April 24, 2013}}</ref>) are series of anastomosing arterial arches between the arterial branches of the [[jejunum]] and [[ileum]]. |
The '''arterial arcades''' ('''intermesenteric arterial anastomoses''' or '''Riolan arcades'''<ref name="medilexicon">{{Cite web|url=http://www.medilexicon.com/medicaldictionary.php?t=5937|publisher=MediLexicon International Ltd|title=Definition: 'Intestinal Arterial Arcades'|accessdate=April 24, 2013}}</ref>) are series of anastomosing arterial arches between the arterial branches of the [[jejunum]] and [[ileum]]. |
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Revision as of 22:09, 11 February 2018
| Arterial arcades | |
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 Loop of small intestine showing distribution of intestinal arteries | |
| Anatomical terminology |
The arterial arcades (intermesenteric arterial anastomoses or Riolan arcades[1]) are series of anastomosing arterial arches between the arterial branches of 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 -
Arterial arcades -
Loop of small intestine showing distribution of intestinal arteries -
Loop of small intestine showing distribution of intestinal arteries -
Loop of small intestine showing distribution of intestinal arteries -
Loop of small intestine showing distribution of intestinal arteries -
Loop of small intestine showing distribution of intestinal arteries -
Loop of small intestine showing distribution of intestinal arteries
See also
References
This article incorporates text in the public domain from page 1175 of the 20th edition of Gray's Anatomy (1918)
- ^ "Definition: 'Intestinal Arterial Arcades'". MediLexicon International Ltd. Retrieved April 24, 2013.
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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