Introduction to the histology and histopathology of the nervous system / by Paul Schröder ; authorized translation from the second revised German edition, by Baldwin Lucke and Morton McCutcheon.

  • Schröder, Paul, 1873-1941.
Date:
[1923], ©1923
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Licence: Public Domain Mark

Credit: Introduction to the histology and histopathology of the nervous system / by Paul Schröder ; authorized translation from the second revised German edition, by Baldwin Lucke and Morton McCutcheon. Source: Wellcome Collection.

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    into the short, broadly lance-shaped axis-cylinder process; in the Betz cells of the cortex it is always situated at the base of the cell, or at the point of exit of one of the large basal dendrites. The motor cells are further characterized by a large pale nucleus, which contains a large nucleolus, the nuclear membrane being usually invisible because it Remnants of stainable sub¬ stance Protoplasm of the axis-cylinder proc¬ ess. Small nerve cell (not in focus) Glia nuclei HGlia nuclei Axis-cylinder processes Fig. 3.—Two large pyramidal cells of frontal cortex in state of “acute degeneration.” Nissl stain. After Nissl and Ranke. Magnification x 930. Compare with Fig. 2. is covered up by the adjacent stainable substances of the cell body. The large 'pyramidal cells of the third layer of the human cerebral cortex (Fig. 2) rarely reach the size of the giant pyramidal cells of Betz. They likewise have large pale nuclei, which, however, can be always recognized from the fact that the nuclear membrane is definitely visible. Adjacent to it are saucer- and shield-shaped stainable substances. At the base of the cell body there are similar i