|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.)|
|Gray's||subject #246 1157|
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.
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