Transverse colon
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2007-10-26T22:20:38Z
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{{Infobox Anatomy |
Name = {{PAGENAME}} |
Latin = colon transversum |
GraySubject = 249 |
GrayPage = 1180 |
Image = Dickdarm-Schema.svg|
Caption = 1: [[Ascending colon]]<BR>2: [[Transverse colon]]<BR>3: [[Descending colon]]<BR>4: [[Sigmoid colon]]<BR>5: [[Rectum]]<BR>|
Image2 = Gray1223.png |
Caption2 = Front of abdomen, showing surface markings for liver, stomach, and great intestine. |
Precursor = [[Midgut]] (first 2/3) [[Hindgut]] (last 1/3) |
System = |
Artery = [[Middle colic artery]] |
Vein = [[Middle colic vein]] |
Nerve = |
Lymph = |
MeshName = |
MeshNumber = |
DorlandsPre = c_47 |
DorlandsSuf = 14169300 |
}}
The '''transverse colon''' the longest and most movable part of the [[Colon (anatomy)|colon]], passes with a downward convexity from the right [[hypochondrium region]] across the abdomen, opposite the confines of the epigastric and umbilical zones, into the left hypochondrium region, where it curves sharply on itself beneath the lower end of the [[spleen]], forming the splenic or [[left colic flexure]]. The [[hepatic flexure|right colic flexure]] is adjacent to the [[liver]].
In its course, it describes an arch, the concavity of which is directed backward and a little upward; toward its splenic end there is often an abrupt U-shaped curve which may descend lower than the main curve.
It is almost completely invested by [[peritoneum]], and is connected to the inferior border of the [[pancreas]] by a large and wide duplicature of that membrane, the [[transverse mesocolon]].
It is in relation, by its upper surface, with the [[liver]] and [[gall-bladder]], the [[greater curvature of the stomach]], and the lower end of the [[spleen]]; by its under surface, with the [[small intestine]]; by its anterior surface, with the anterior layers of the [[greater omentum]] and the abdominal [[parietes]]; its posterior surface is in relation from right to left with the descending portion of the [[duodenum]], the [[head of the pancreas]], and some of the convolutions of the [[jejunum]] and [[ileum]].
==Additional images==
<gallery>
Image:illu_intestine.jpg|Intestines
Image:Gray989.png|Schematic figure of the bursa omentalis, etc. Human embryo of eight weeks.
Image:Gray1034.png|Front view of the thoracic and abdominal viscera.
Image:Gray1035.png|The epiploic foramen, greater sac or general cavity (red) and lesser sac, or omental bursa (blue).
Image:Digestive_system_diagram_en.svg|Digestive system
</gallery>
==See also==
* [[Colon (anatomy)]]
==External links==
* {{eMedicineDictionary|Transverse+colon}}
* {{SUNYAnatomyFigs|37|06|03}} - "The large intestine."
{{Gray's}}
{{digestive-stub}}
{{Digestive tract}}
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