The SMA and IMA anastomose via the marginal artery of the colon ( artery of Drummond ) and via Riolan's arcade ( also called the " meandering artery ", an arterial connection between the left colic artery and the medial colic artery ).
2.
The "'Arc of Riolan "'( Riolan's arcade, Arch of Riolan, Haller's anastomosis ), also known as the "'meandering mesenteric artery "', is another vascular arcade present in the colonic mesentery that connect the proximal middle colic artery with a branch of the left colic artery.
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