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Glial Cells in Abdominal Ganglia of Crayfish
Author(s) -
Cuadras Jordi,
MartíSubirana Anna
Publication year - 1985
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1985.tb00842.x
Subject(s) - biology , neuroglia , neuron , crayfish , neuroscience , microbiology and biotechnology , anatomy , central nervous system , fishery
Glial cells of abdominal ganglia of crayfish have been studied by transmission electron microscopy. Four cell types can be defined: (1) perivascular glial cells, close to the vascular spaces; (2) perineuronal glial cells, the processes of which ensheathe neuron perikarya; (3) adaxonal glial cells ensheathing axons; (4) neuropilar glial cells, associated with synapsing terminals in the neuropile. Neuropilar glia, adaxonal glia and the system formed by perineuronal and perivascular glia separate different functional zones of the neurons from the hemolymph or the electron dense extracellular matrix. These glial arrangements could play a similar role in hemato‐neuronal transport. Gap‐like junctions between glia and neuron cell bodies are frequent and could be involved in direct triggering of glial activities related to neurons.