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Related to lamina quadrigemina: Corpora quadrigemina
lam·i·na of mes·en·ce·phal·ic tec·tum
the roofplate of the mesencephalon formed by the quadrigeminal bodies.
The two pairs of bulges on the top of the midbrain section of the brainstem. The rostral pair are the superior colliculi, which are concerned with visual stimuli. The caudal pair are the inferior colliculi, which are concerned with auditory stimuli. Synonymous with tectum.
See also: lamina