Duodenojejunal flexure

Duodenojejunal flexure
Duodenojejunal flexure
Gray1041.png
Superior and inferior duodenal fossæ.
Illu small intestine.jpg
Small intestine
Latin flexura duodenojejunalis
Gray's subject #248 1170

The duodenojejunal flexure or duodenojejunal junction is the border between the duodenum and the jejunum.

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.

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.

The ligament of Treitz, a peritoneal fold, from the right crus of diaphragm, is an identification point for the duodenojejunal flexure at operation.[1]

Contents

Additional images

  • Duodenojejunal fossa.

  • Front of abdomen, showing surface markings for duodenum, pancreas, and kidneys.


See also

References

  1. ^ Jacob,S. (2007) Chapter 4: Abdomen; Human anatomy, A clinically-orientated approach. P.85

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eAnatomy of torso, digestive system: Gastrointestinal tract, excluding mouth (TA A05.3–7, TH H3.04.02-04, GA 11.1141)
Upper GI
Lower GI
Layers
Suspensory muscle, Major duodenal papilla, Minor duodenal papilla, Duodenal cap • Duodenojejunal flexure • Brunner's glands
no substructures
Layers
Serosa · Subserosa · Muscular layer · Submucosa · Mucosa
Transverse folds of rectum • Rectal ampulla

M: DIG

anat(t, g, p)/phys/devp/enzy

noco/cong/tumr, sysi/epon

proc, drug(A2A/2B/3/4/5/6/7/14/16), blte

Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • duodenojejunal flexure — flexura duodenojejunalis …   Medical dictionary

  • flexure — A bend, as in an organ or structure. SYN: flexura [TA]. [L. flexura] anorectal f. [TA] the anteroposterior curve or angle, with convesity directed anteriorly, of the anorectal junction; tonus of the puborectalis (muscle) produces the …   Medical dictionary

  • Duodenum — This article is about an organ. For Frank Zappa s song, see Duodenum (song). Duodenum Schematic diagram of the gastrointestinal tract, highlighting the duodenum. G …   Wikipedia

  • junction — The point, line, or surface of union of two parts, mainly bones or cartilages. SYN: juncture. SYN: junctura (2) [TA], junctio. adhering junctions intercellular junctions, including zonulae adherentes, hemidesmosomes, and desmosomes, that… …   Medical dictionary

  • fold — 1. A ridge or margin apparently formed by the doubling back of a lamina. SYN: plica. 2. In the embryo, a transient elevation or reduplication of tissue in the form of a lamina …   Medical dictionary

  • sphincter — A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice. SYN: musculus s. [TA], s. muscle [TA]. [G. sphinkter, a band or lace] s. of ampulla s. of hepatopancreatic ampulla. anatomic s.… …   Medical dictionary

  • flexura — SYN: flexure. [L. a bending] f. anorectalis [TA] SYN: anorectal flexure. f. colica splenica left colic flexure. f. coli dextra [TA] SYN: right colic flexure. f. coli hepatis SYN: right colic flexure. f. coli sinistra [TA] SYN: left colic flexure …   Medical dictionary

  • Colon (anatomy) — For other uses, see Colon. Colon (anatomy) Front of abdomen, showing surface markings for liver, stomach, and large intestine. Gray s …   Wikipedia

  • angle — The meeting point of two lines or planes; the figure formed by the junction of two lines or planes; the space bounded on two sides by lines or planes that meet. For angles not listed below, see the descriptive term; e.g., axioincisal, distobuccal …   Medical dictionary

  • part — A portion. SYN: pars [TA]. abdominal p. of aorta SYN: abdominal aorta. abdominal p. of esophagus [TA] the portion of the esophagus from where it passes through the diaphragm to the stomach. See …   Medical dictionary

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”