Exploration of the brain from the medial aspect

Radiation of corpus callosum

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Image #17-3
Bassett ImageDiagram Image
Legend Image
Exploration of the brain from the medial aspect
Radiation of corpus callosum
The radiation of the corpus callosum has been made visible by the removal of tissue from the medial surface of the hemisphere including the cingulum, gyrus cinguli, paracentral lobule, and parts of the superior frontal gyrus and superior parietal lobule. The parieto-occipital fissure bounds the dissected area posteriorly. In the dissection there is a complex interlacing of the radiations of the corpus callosum and internal capsule together with the fibers of numerous association systems. This makes it impossible to display the course of most of the fiber bundles comprising the corona radiata.
1 . Central sulcus (of Rolando)
2 . Medullary center of superior frontal gyrus
3 . Area of corona radiata
4 . Frontal part radiations corpus callosum
5 . Frontal pole
6 . Internal capsule (caudate nucleus removed)
7 . Stria terminalis
8 . Internal capsule (thalamus removed)
9 . Cut surface of thalamus
10 . Superior colliculus (cut across)
11 . Longitudinal fasciculus (pyramidal) pontine
12 . Parietal part radiations corpus callosum
13 . Cuneus
14 . Occipital part radiations corpus callosum and parieto-occipital fissure
15 . Lingual gyrus
16 . Brachium conjunctivum (superior cerebellar peduncle)