Exploration of a brain cut in frontal section at the splenium of the corpus callosum

Hippocampal commissures; meninges within transverse fissure

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Image #21-7
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Legend Image
Exploration of a brain cut in frontal section at the splenium of the corpus callosum
Hippocampal commissures; meninges within transverse fissure
A block of tissue including the cingulum and hippocampal structures has been removed on the right side to expose the right pulvinar. Vessels and meninges remain in their normal position within the transverse fissure thus opened. The splenium and gyri cinguli are cut away. The central parts of the lateral ventricles and the forward course of the fornix with the hippocampal commissure interconnecting its two crura are now seen.
1 . Longitudinal fissure (cerebral)
2 . Choroid plexus lateral ventricle
3 . Fornix (crus)
4 . Pulvinar
5 . Inferior colliculus
6 . Fusiform gyrus
7 . Cingulate gyrus
8 . Corpus callosum
9 . Hippocampal commissure
10 . Choroidal branch of posterior cerebral artery
11 . Meninges
12 . Posterior cerebral artery
13 . Hippocampus
14 . Anterior medullary velum
15 . Brachium pontis (middle cerebellar peduncle) (cut across)