Degeneration and atrophy of the cerebrum.

  • M'Leod, Kenneth.
Date:
[1864]
Catalogue details

Licence: Public Domain Mark

Credit: Degeneration and atrophy of the cerebrum. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    In this case, the cranial capacity and weight are greatly deficient —the so-called bridging convolutions atrophied and sunk, and the frontal convolutions still more so. The degree of overlapping ot the cerebral lobes over the cerebellum is exhibited by the casts, which show a great shortcoming in this respect; and it was found that the posterior horn of the lateral fissure and the notable hippo- campus minor were both considerable features. Fig. 1. External Surface of Left Hemisphere—Exact Size. References after Gratiolet. S, S, S. Fissure of Sylvius. It, R, R. Fissure of Rolando. P, P. External perpendicular fissure. 1. Inferior frontal stage. V. Orbital lobule. 2. Middle frontal stage, partially atrophied. 3. Superior frontal stage. 3'. External aspect of marginal convolution. 4. First ascending convolution. 5. Second ascending convolution. 5'. Lobule of the second ascending convolution. 6. Curved convolution—pli courbe. 7. Inferior marginal or superior temporal convolution. 8. Middle temporal convolution. 9. Inferior temporal convolution. _ 10. 11, 12. Superior middle and inferior occipital convolutions. A, ’ A, A. Lobule of the superior marginal convolution. _ B, B'. Small annectent or bridging convolutions connecting 5 with A and 6. a. First bridging convolution—pli de passage. C, Second do. do. 7. Third do. do. d. Fourth do. do. Fig. 2. External Surface of Right Hemisphere—Exact Size. Reference s as for Fig. 1. Almost complete atrophy of middle and superior frontal stages, and superior bridging convolutions displayed. Fig. 3. Internal Surface of Left Hemisphere. F F F. Fissure of fronto-parietal lobe. 1,1. ’internal perpendicular fissure. H, H. Fissure of the hippocampi. I. Convolution of the corpus callosum—gyrus 2. Marginal convolution. 1'. Quadrilateral lobule. 3. Internal occipital lobule. 4. Inferior internal pli de passage. 5. Superior internal temporal convolution. 6! Middle internal temporal convolution. 9. Inferior temporal. 10, 11, 12. Occipital convolutions. fornicatus. Fig. 4. Internal Surface of Right Hemisphere. References as for Fig. 3. EDINBURGH I FEINTED BY OLIVER AND BOYD.
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