A treatise on nervous and mental diseases : for students and practitioners of medicine.
- Gray, Landon Carter, 1850-1900.
- Date:
- 1893
Licence: Public Domain Mark
Credit: A treatise on nervous and mental diseases : for students and practitioners of medicine. Source: Wellcome Collection.
Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.
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![warranted iii regarding the cortex, as a whole, as the organ of the mind, and the so-called centres as being those areas of the cortex in which terminate the nerves coming from the periphery, or what are known as the projection fibres, in contradistinction to the commis- sural fibres of the cerebrum, which, as we have seen, connect the different convolutions. It will now be our task to travel the highly complex route which these projection fibres take from the cortex to the peripheral struc- tures, although it must be borne in mind that in doing this we can Fig. ]7. Photograph of section of the cerebrum, showing the centrum ovale on the left side. no more than outline the anatomical facts which have a clinical bearing. Fig. 17 represents upon the left side a transverse section made across the hemisphere a short distance below the vertex, and shows the centrum ovale, consisting of the white matter in the centre fringed around with the convolutions. Fig. 18 represents a still deeper section of the liemisphere, showing in the middle line the great mass of commissural or connecting fibres running across from one hemisphere to the other, the so-called corpus callosum. When this corpus callosum is lifted (Fig. 19) the ganglia of the base, or the hanal rjanglia, are seen lying in the ventricles, the third ventricle in the centre and the lateral ventricles one on each side. These basal](https://iiif.wellcomecollection.org/image/b21220670_0037.jp2/full/800%2C/0/default.jpg)
