Spinal Ganglion Cells

Human and animal cells are de dictated to specialized functions within the organism, and their sizes, shapes and structures vary accordingly. Spinal ganglion cells are mostly pseudo unipolar neurons and can b e spherical, ellipsoid, or pear-shaped, with diameters between 20 and 120 μm. The round cell nuclei, up to 25 μm in size, contain little chromatin 1 . The nuclei always have a clearly visible nucleolus (2–4 μm). Glial cells form a layer around the spinal ganglion cells. Therefore, they are also called satellite cells 2 . The small round or spindle-shape d nuclei of these satellite cells stand out because they are heavily stained. There are delicate connective tissue fibers (endoneurium) and nerve fiber bundles (fascicles) 3 between the ganglion cells. In the upper right of the figure, a wide strand of connective tissue (stained blue)  traverses the section .

1 Nucleus with clearly visible nucleolus

2 Satellite cells

3 Nerve fibers

4 Capillaries

Stain: azan; magnification: × 400

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 .