ELECTRON-MICROSCOPICAL INVESTIGATION OF THE SATELLITE CELLS

SUMMARY Trigeminal ganglion is composed of ganglion cells (pseudounipolar neurons), satellite cells and their fibers. Altman and Bayer (1982) tend to see the origin of these cells in the trigeminal ganglion, emphasizing on the fact that they are part of the neuronal ridge/arch. Davis and Lumsden (1990) in their publications describe development of the trigeminal ganglion, confirming their standpoint concerning the origin from neuronal ridge/arch and ectodermic placoids. This standpoint was confirmed by Rhoades (1991).