isthmus of cingulate gyrus

(redirected from isthmus of limbic lobe)

isth·mus of cin·gu·late gy·rus

the narrowing of the cingulate gyrus, at its transition with the hippocampal gyrus behind and below the splenium of the corpus callosum, caused by the anterior extension of the conjoined parietooccipital and calcarine sulci.
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