mesocolon (mez´o-ko´lon) [NA]

The fold of peritoneum attaching the colon to the posterior abdominal wall; ascending m. (m. ascendens [NA]), transverse m. (m. transversum [NA]), descending m. (m. descendens [NA]), and sigmoid m. (m. sigmoideum [NA]) correspond to the respective divisions of the colon; the ascending and descending portions are usually fused to the peritoneum of the posterior abdominal wall, but can be mobilized. [meso- + kolon, colon]


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