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September 9, 1922

Le Réflexe Pilomoteur. étude Anatomo-Clinique sur le Système Sympathique.

JAMA. 1922;79(11):914. doi:10.1001/jama.1922.02640110054028

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This is a comprehensive study of the pilomotor reflexes in soldiers suffering from nerve lesions, chiefly of the spinal cord. In twenty-nine cases the author was able to check his clinical observations against findings at necropsy. On the basis of this information he has been able to construct a scheme of the arrangement of the pilomotor neurons—a field of work entirely new and of considerable clinical importance. The first chapter takes up the anatomy of the sympathetic nervous system and the physiology of the pilomotor reactions. The remaining chapters are devoted to the author's own observations, and contain numerous diagrams and tables showing the distribution of the pilomotor neurons. In transverse sections of the spinal cord there is blocking of impulses within the cord from segments above to segments below the lesion, and vice versa. If the skin is stimulated above the line of anesthesia, there is erection of the

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