Duodenojejunal flexure
| Duodenojejunal flexure | |
|---|---|
 | |
| Superior and inferior duodenal fossæ. | |
 | |
| Small intestine | |
| Latin | flexura duodenojejunalis |
| Gray's | subject #248 |
The duodenojejunal flexure or duodenojejunal junction is the border between the duodenum and the jejunum.
Structure
The ascending portion of the duodenum ascends on the left side of the aorta, as far as the level of the upper border of the second lumbar vertebra, where it turns abruptly forward to become the jejunum, forming the duodenojejunal flexure. The duodenojejunal flexure is surrounded by the suspensory muscle of the duodenum. [1] :274
It lies in front of the left Psoas major and left renal vessels, and is covered in front, and partly at the sides, by peritoneum continuous with the left portion of the mesentery.
Clinical relevance
The ligament of Treitz, a peritoneal fold, from the right crus of diaphragm, is an identification point for the duodenojejunal flexure at operation.[2]:85
Additional images
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Duodenojejunal fossa.
See also
This article uses anatomical terminology; for an overview, see anatomical terminology.
References
This article incorporates text from a public domain edition of Gray's Anatomy.
- ↑ Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W.M. Mitchell ; illustrations by Richard; Richardson, Paul (2005). Gray's anatomy for students. Philadelphia: Elsevier/Churchill Livingstone. ISBN 978-0-8089-2306-0.
- ↑ Jacob,S. (2007) Chapter 4: Abdomen; Human anatomy, A clinically-orientated approach.
External links
- SUNY Figs 37:06-04 - "The large intestine."
- 39:07-0105 at the SUNY Downstate Medical Center - "Intestines and Pancreas: The Duodenum"
- SUNY Anatomy Image 8155
- duodenojejunal+flexure at eMedicine Dictionary
- duodenojejunal+junction at eMedicine Dictionary
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