callosomarginal fissure


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cin·gu·late sul·cus

[TA]
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.
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callosomarginal fissure

A conspicuous fissure in the medial surface of the cerebral hemisphere running above and concentric with the curved upper surface of the corpus callosum.
See also: fissure
Medical Dictionary, © 2009 Farlex and Partners