ros·tral lam·i·na

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.

Synonym(s): lamina rostralis, rostral layer, taeniola corporis callosi

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