Exploration of the brain from its superior aspect


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Image #8-5
Bassett ImageDiagram Image
Legend Image
Exploration of the brain from its superior aspect
The cortex of the gyrus cinguli has now been scraped away to display the medullary substance which includes the cingulum, a large bundle of association fibers running longitudinally. The upper surface of the corpus callosum is partly exposed, its vessels and meninges remaining intact. Portions of the corona radiata are visible as cut ends of fibers projecting upward.
1 . Medullary substance of superior frontal gyrus
2 . Surface of cingulate gyrus facing cingulate sulcus
3 . Superior cerebral vein overlying central sulcus
4 . Central sulcus in depths of dissection
5 . Area of corona radiata
6 . Cingulum
7 . Corpus callosum
8 . Posterior parietal branch of middle cerebral artery
9 . Parieto-occipital branch of posterior cerebral artery (enclosed within the meninges of the parieto-occipital fissure)
10 . Superior cerebral vein within longitudinal fissure
11 . Superior frontal sulcus
12 . Cingulate gyrus (cut across)
13 . Precentral gyrus
14 . Central sulcus (Rolandic)
15 . Postcentral gyrus
16 . Superior parietal lobule
17 . Interparietal sulcus