Cell and Tissue Research

, Volume 264, Issue 2, pp 209–214

Clusters of nerve cell bodies enclosed within a common connective tissue envelope in the spinal ganglia of the lizard and rat

  • E. Pannese
  • M. Ledda
  • G. Arcidiacono
  • L. Rigamonti
Article

DOI: 10.1007/BF00313957

Cite this article as:
Pannese, E., Ledda, M., Arcidiacono, G. et al. Cell Tissue Res (1991) 264: 209. doi:10.1007/BF00313957

Summary

A careful search for groups of nerve cell bodies enclosed within a common connective envelope was made in the spinal ganglia of the lizard and rat using a serial-section technique. Nerve cell bodies sharing a common connective envelope were found to be more common in the lizard (9.4%) than in the rat (5.6%). These nerve cell bodies were arranged in pairs, or, less frequently, in groups of three. At times, they appeared to be in immediate contact, with no intervening satellite cells; at other, they remained separated from one another by a satellite cell sheet. The clusters of nerve cell bodies enclosed within a common connective envelope probably result from the arrest of developmental processes in the spinal ganglion. It is possible that, as a result of the cell arrangement here described, certain neurons electrically influence other sensory neurons at the level of the ganglion.

Key words

Spinal ganglia Sensory neurons Clusters of nerve cell bodies Development of the spinal ganglion Neuronal interactions Satellite cells Laceria muralis (Lacertilia) Rat (Wistar) 

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • E. Pannese
    • 1
  • M. Ledda
    • 1
  • G. Arcidiacono
    • 1
  • L. Rigamonti
    • 1
  1. 1.Institute of Histology, Embryology and NeurocytologyUniversity of MilanMilanItaly
  2. 2.MilanoItaly