An electron‐dense extracellular material in the nervous system of Aplysia

Richard E. Coggeshall

Research output: Contribution to journalArticle

Abstract

An electron dense material is found in the extracellular space of the nervous system of Aplysia, a marine mollusc whose ganglia are widely studied by neurobiologists. This material appears to consist of irregular electron‐dense granules, with diameters of approximately 600 Å. This material is found between the glial cells that surround the neuronal perikarya. It is not found in other regions of the nervous system. Because it is found in the ganglion cell layer of the nervous system and because the neurons contain what may be the precursor of this substance, the electron‐dense material is regarded as most probably being a neuronal product. The importance of this material is that it is one of the few examples of visible structure in the extracellular space of the nervous system.

Original languageEnglish (US)
Pages (from-to)281-289
Number of pages9
JournalThe Anatomical Record
Volume187
Issue number3
DOIs
StatePublished - Mar 1977

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ASJC Scopus subject areas

  • Anatomy
  • Agricultural and Biological Sciences (miscellaneous)

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