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Cell and Tissue Research

, Volume 194, Issue 2, pp 297–302 | Cite as

Tracing of neurosecretory neurons in crayfish optic ganglia by cobalt iontophoresis

  • Peter P. Jaros
Article

Summary

The axonal connections between the medulla terminalis ganglionic X-organ (MTGXO) and the sinus gland are traced by iontophoretic application of cobalt dye to the neurosecretory system in the eyestalks of the crayfish, Orconectes limosus. The MTGXO consists of about 15 large perikarya, forming a distinct subgroup of neurosecretory cells in the medulla terminalis and giving rise to a prominent fibre bundle. Additional axons reaching the sinus gland from the medulla interna, the medulla externa and the optic nerve are less conspicuous.

Key words

Neurosecretory neurons Medulla terminalis ganglionic X-organ Eyestalk Orconectes limosus Cobalt iontophoresis 

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Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • Peter P. Jaros
    • 1
  1. 1.Abteilung für Allgemeine ZoologieUniversität UlmUlmBundesrepublik Deutschland

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