Sigmoid mesocolon
4708957
149355772
2007-08-05T15:23:14Z
Arcadian
104523
{{Peritoneum}}
{{Infobox Anatomy |
Name = {{PAGENAME}} |
Latin = mesocolon transversum |
GraySubject = 246 |
GrayPage = 1157 |
Image = Gray1040.png |
Caption = Diagram showing the lines along which the peritoneum leaves the wall of the abdomen to invest the viscera. (Sigmoid mesocolon labeled at bottom right, third from the bottom.) |
Image2 = Intestine.png |
Caption2 = |
System = |
MeshName = |
MeshNumber = |
DorlandsPre = m_10 |
DorlandsSuf = 12526431 |
}}
The '''sigmoid mesocolon''' is the fold of [[peritoneum]] which retains the [[sigmoid colon]] in connection with the [[pelvic wall]].
Its line of attachment forms a V-shaped curve, the apex of the curve being placed about the point of division of the left [[common iliac artery]].
The curve begins on the medial side of the left [[Psoas major]], and runs upward and backward to the apex, from which it bends sharply downward, and ends in the median plane at the level of the third [[sacral vertebra]].
The sigmoid and superior hemorrhoidal vessels run between the two layers of this fold.
==External links==
* {{SUNYAnatomyLabs|37|13|03|02}} - "Abdominal Cavity: The Colon and its Divisions"
* {{SUNYAnatomyImage|8|1|84}}
{{digestive-stub}}
{{Gray's}}
{{Peritoneum}}