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a whitish line appearing on perfectly median sections of the brain as a thin bridge connecting the rostrum of the corpus callosum with the lamina terminalis; the rostral lamina contains no commissural fibers; instead, it corresponds to the line along which the pia mater reflects from the medial surface of one hemisphere to that of the other.
Farlex Partner Medical Dictionary © Farlex 2012
A continuation of the rostrum of the corpus callosum and the terminal lamina of the third ventricle of the brain.
See also: lamina
Medical Dictionary, © 2009 Farlex and Partners