Secondary degeneration following unilateral lesions of the cerebral motor cortex / by Sutherland Simpson.

  • Simpson, Sutherland, 1863-1926.
Date:
1902
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Licence: In copyright

Credit: Secondary degeneration following unilateral lesions of the cerebral motor cortex / by Sutherland Simpson. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    (Ans der Inteniationalen Monatsschrift f. Anatomie u. Physiologic. 1902. I3tl. XIX. Hoft. 7/9.) (From the Physiological Laboratory, University of Edinburgh.) Secondary Degeneration following Unilateral Lesions of the Cerebral Motor Cortex. By Sutherland Simpson, M. D.; B. Se. (With Plates XVI, XVII and 5 Figures in the Text.) The following paper wliicli in a more extended form was sub- mitted for the degree of M. D. of the University of Edinburgh last July contains a record of the results of a number of experiments, performed on cats and monkeys. The research was undertaken at the suggestion of Professor Schafer, to whom I am much indebted for advice and assistance during its prosecution, and its primaiy object was to determine the path pursued by the fibres of the pyramidal tract, in their course from the cerebral motor cortex to their termination in the loAver levels of the brain and spinal cord, but more particularly their mode of ending in relation to the nuclei of the cranial motor nerves in the mesen- cephalon, pons, and medulla oblongata. Altliough this — the motor path — has been more carefully investigated, and is probably better understood than any other tract or path in the central nervous system, still much remains to be discovered concerning it, more especially with regard to its terminal connections. In his book on The Nervous System (1900) Barker [7] says: -- The exact place where the fibres Inlv 20tilqor^''''''f ''^ '•«^<' t.hc Physiological Society on Jnly^iOth 1901 and pubbslied in tl,. .Tonrnal of Phy.siology. Vol. XXVII. Nr. M2,