On outlying nerve-cells in the mammalian spinal cord / by Ch. S. Sherrington.

  • Charles Scott Sherrington
Date:
[1890]
Catalogue details

Licence: Public Domain Mark

Credit: On outlying nerve-cells in the mammalian spinal cord / by Ch. S. Sherrington. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    \^eom the Proceedings of the Royal Society, Vol. 47.] On outlying Nerve-cells m the Mammalian Spinal Cord. By Ch. S. Sherrington, M.A., M.B., &c. Communicated by Professor M. FOSTER, Sec. R.S. Received January 30, 1890. (Abstract.) Gaskell has shown* that in the cord of the alligator scattered nerve- cells are to be seen at the periphery of the lateral column. Although nerve-cells appear to be absent from that position in the spinal cord of Mammalia as represented by the rabbit, cat, dog, calf, monkey, and man, yet there are in these animals isolated nerve-cells present in the White matter of the cord, not only in the deeper portions of the lateral column, but in the anterior and posterior columns as well. In the anterior columns occasional nerve-cells, of the multipolar kind, lie among those fibre-bundles which pass between the deeper mesial border of the anterior horn and the anterior commissure at the base of the anterior fissure. They, in the instances observed, are smaller than the large cells characteristic of the anterior horn, and lie with two of the processes directed parallel with the horizontal transverse fibres among which they are placed. Such cells have been observed in the human cord and in the cord of the dog and bonnet monkey. ^ In the lateral column, of the spinal cord of man and the other animals named above, it is common to find outlying members of the group of small cells of the lateral horn, Clarke's tractus intermedio- lateralis, situated in the white matter, distinctly beyond the limits of the grey. Some outlying cells here are placed at a great distance from the grey. These are all probably to be considered members of the intermedio-lateral group. Their similarity to those cells in form and size is striking. They are generally placed upon, or at least m close connexion with, the fine connective-tissue septa which pass across the white matter. It is probable that the cells are connected with the meduUated nerve-fibres running along these septa. The cells are fusiform, with the longer axis parallel to the direction of the nerve-fibres running in the septa. In the part of the lateral column adjacent to the lateral reticular ' Proceedings of the Physiological Bociety,' 1885, A, * <■