The superior mesenteric lymph nodes may be divided into three principal groups:

The ileocolic lymph nodes, from ten to twenty in number, form a chain around the ileocolic artery, but tend to subdivide into two groups, one near the duodenum and the other on the lower part of the trunk of the artery.

Where the vessel divides into its terminal branches the chain is broken up into several groups:

The superior mesenteric glands receive lymph from the jejunum, ileum, cecum, vermiform process, and the ascending and transverse parts of the colon; lymph drains into the preaortic glands.

This article incorporates text in the public domain from page 709 of the 20th edition of Gray's Anatomy (1918)