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Medical Term:

cingulate sulcus


Definition: a fissure on the medial surface of the cerebral hemisphere, bounding the upper surface of the cingulate gyrus (callosal convolution); the anterior portion is called the pars subfrontalis; the posterior portion that curves up to the superomedial margin of the hemisphere and borders the paracentral lobule posteriorly is the ramus marginalis.

Synonym(s): sulcus cinguliTA, callosomarginal fissure, callosomarginal sulcus, sulcus callosomarginalis, sulcus of cingulum