Mesocolon

Mesocolon

The Mesocolon is a part of the anatomy of the digestive system in humans and other mammals. It is a fold of peritoneum that attaches the colon to the posterior abdominal wall, providing a means for vascular and neural supply.

Structure

The mesocolon is a double layer of peritoneum that encloses the colon. It is attached to the posterior wall of the abdomen by loose areolar tissue, allowing the colon to have a degree of mobility within the abdominal cavity. The mesocolon is divided into several parts, each associated with a different part of the colon. These include the transverse mesocolon, sigmoid mesocolon, ascending mesocolon, and descending mesocolon.

Function

The primary function of the mesocolon is to provide a conduit for the blood vessels, nerves, and lymphatic vessels that supply the colon. It also helps to hold the colon in place within the abdominal cavity, preventing it from moving too freely and potentially causing a volvulus or intestinal obstruction.

Clinical significance

The mesocolon can be involved in several pathological conditions. These include diverticulitis, colonic volvulus, and colonic ischemia. It can also be involved in the spread of colorectal cancer, as cancer cells can travel along the blood vessels within the mesocolon to reach other parts of the body.

See also

• Peritoneum
• Colon (anatomy)
• Digestive system

References

Mesocolon Resources
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