Serial transverse sections of the brain stem

Diencephalon and telencephalon; level of anterior commissure

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Image #31-5

Serial transverse sections of the brain stem Diencephalon and telencephalon; level of anterior commissure This section is 6 mm. above the level of the previous view. Relations of the anterior commissure (24) are visible. The frontal stalk of the thalamus (11) can be traced into the anterior limb of the internal capsule. The section passes just below the interventricular foramina (23). 1 . Corona radiata 2 . Superior occipitofrontal fasciculus 3 . Corpus callosum 4 . Parietal stalk of thalamus 5 . Internal capsule (posterior limb) 6 . External capsule 7 . Putamen 8 . Globus pallidus 9 . Medullary laminae of lentiform nucleus 10 . Intralaminar nucleus of thalamus 11 . Frontal stalk of thalamus 12 . Claustrum 13 . Uncinate fasciculus 14 . Head of caudate nucleus 15 . Calcarine fissure 16 . Posterior horn lateral ventricle 17 . Cingulate gyrus 18 . Caudate nucleus 19 . Lateral ventricle 20 . Anterior nucleus of thalamus 21 . Lateral nucleus of thalamus (ventral anterior nucleus) 22 . Medial nucleus and internal medullary lamina of thalamus 23 . Choroid plexus adjacent to interventricular foramen (of Monro) 24 . Anterior commissure 25 . Preoptic nucleus 26 . Anterior cerebral arteries and longitudinal fissure (cerebral)