Exploration of the brain from its basal aspect
Relations of hippocampal structures near splenium of corpus callosum
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Image #7-3
Exploration of the brain from its basal aspect
Relations of hippocampal structures near splenium of corpus callosum
The meninges have been removed from the inferior surfaces of the fornix, dentate fascia, hippocampal commissure and splenium of the corpus callosum nearly to the midline. The relations of structures in this transitional area are visualized. In this region the fornix and hippocampal commissure remain inferior to the corpus callosum, whereas the dentate fascia passes around behind the splenium, as the fasciola cinerea, to be continuous on the superior surface of the corpus callosum with the induseum griseum and longitudinal striae.
- Corpus callosum (ventricular surface)
- Superior occipitofrontal fasciculus
- Corona radiata (dissected)
- Choroid plexus lateral ventricle
- Fornix (body)
- Posterior thick portion of septum pellucidum (area occupied by hippocampal commissure)
- Fornix (crus) (cut across)
- Dentate fascia
- Hippocampus (cut across)
- Posterior horn lateral ventricle
- Collateral fissure
- Fusiform gyrus (cut across)
- Mamillothalamic tract
- Medial nucleus of thalamus (dissected)
- Meninges and choroidal vessels in region of roof of third ventricle
- Substantia nigra (cut across)
- Cerebral peduncle
- Superior cerebellar artery
- Trochlear nerve (IV)
- Corpus callosum (splenium)
- Posterior cerebral artery (cut across)
- Limbic lobe
- Hippocampal gyrus(separated from Limbic lobe by anterior extension of calcarine fissure)
- Cerebellum (cut across)
- Medial surface of opposite hemisphere visible through widely opened transverse fissure