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a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin

a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin

A small conical midline body attached to the posterior part of the third ventricle and lying between the superior colliculi, below the splenium of the corpus callosum.

an organ between the anterior corpora quadrigemina.