Ergastoplasm-Nissl Bodies

The cytoplasm of multipolar neurons from the columna anterior of the spinal cord contains a dense distribution of fine or coarse bodies, which can be emphasized by staining with cresyl violet. They are called Nissl bodies or Nissl substance 1 (tigroid bodies), after Franz Nissl (1860–1919), who discovered them. Electron microscopy identifies groups of polysomes and components of the rough (granular) endoplasmic reticulum (ergastoplasm ) as the structures that correspond to the Nissl bodies .

1 Nissl bodies (substance)

2 Nucleus with nucleoli

3 Dendrites

4 Glial cell nuclei

References

Kuehnel, W.(2003). Color Atlas of Cytology, Histology, and Microscopic Anatomy. 4^th edition . Institute of Anatomy Universitätzu Luebeck Luebeck, Germany . Thieme Stuttgart · New York .