Summary
A specialized type of trophospongium has been described in large nerve cells of the cerebral ganglion of the planktonic crustacean Leptodora kindtii. It consists of three parts (Fig. 6). The first is, as a rule, long; it is composed of an infolding of the plasma membrane of the neuron, an intercellular space and a slender process of a glial cell. The second segment from the end of the glial process to the beginning of the X-body is always short; it is characterized by the presence of a desmosome-like junction. The third part consists of a labyrinth of cisternal spaces lined by membranes which are continuous with the infoldings of the surface membrane of the nerve cell.
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This investigation was supported by U.S.P.H.S. Grant NB 02145-04. The skillful assistance of Mrs. Cynthia Jones, Mr. Stanley Brown and Mr. Douglas Gasner in different phases of this work is gratefully acknowledged.
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Scharrer, E. A specialized trophospongium in large neurons of Leptodora (Crustacea). Zeitschrift für Zellforschung 61, 803–812 (1964). https://doi.org/10.1007/BF00340034
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DOI: https://doi.org/10.1007/BF00340034