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subcallosal gyrus


Definition: a slender vertical whitish band immediately anterior to the lamina terminalis and anterior commissure; despite its name, it is not a cortical convolution but is the ventral continuation of the transparent septum. The small ridge of tissue immediately rostral to the lamina terminalis is sometimes designated as a separate part of the subcallosal area and called the paraterminal gyrus [TA] (gyrus paraterminalis [TA]).

Synonym(s): area subcallosaTA, gyrus paraterminalisTA, gyrus subcallosusTA, paraterminal gyrusTA, subcallosal areaTA, corpus paraterminale, paraterminal body, peduncle of corpus callosum, pedunculus corporis callosi, precommissural septal area, Zuckerkandl convolution

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.