Sigmoid mesocolon

Dr Henry Knipe and Dr Jeremy Jones et al.

The sigmoid mesocolon is a fold of peritoneum that attaches the sigmoid colon to the pelvic wall and one of the four mesenteries in the abdominal cavity.

It has an "inverted V" line of attachment, the apex of which is near the division of the left common iliac artery. The left limb descends medially to the left psoas muscle; the right limb descends into the pelvis and ends in the midline anterior to the third sacral segment. The sigmoid and superior rectal vessels run between the layers of the sigmoid mesocolon and the left ureter descends into the pelvis behind its apex.


Abdominal and pelvic anatomy
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Article Information

rID: 5713
Section: Anatomy
Synonyms or Alternate Spellings:

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