medial longitudinal stria
a thin longitudinal band of nerve fibers accompanied by gray matter, running along the surface of the corpus callosum on either side of the median line. Together with the lateral longitudinal stria it forms part of a thin layer of gray matter on the dorsal surface of the corpus callosum, the indusium griseum, a rudimentary component of the hippocampus.
Synonym(s): stria longitudinalis medialisTA
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