Studies on the pararenal ganglion of the toadBufo arenarum Hensel

I. Its normal fine structure and histochemical characteristics
  • R. S. Piezzi
  • E. L. Rodriguez Echandia


The present report is a description of an abdominal sympathetic ganglion in close proximity to the kidneys (pararenal ganglion), which occurs in the toad. It is apparently associated with the splanchnic nerves and consists of: 1. typical ganglion cells; 2. myelinated and unmyelinated nerve fibers, some of which form axosomatic synapses (cholinergic junctions) and spine synapses (adrenergic junctions) with the ganglion cells; 3. clusters of noradrenergic chromaffin cells. Cells and fibers are distributed within wide interstices containing fibrocytes, collagen fibers, blood vessels, and mast cells.


Collagen Blood Vessel Mast Cell Nerve Fiber Ganglion Cell 
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Copyright information

© Springer-Verlag 1968

Authors and Affiliations

  • R. S. Piezzi
    • 1
  • E. L. Rodriguez Echandia
    • 1
  1. 1.Instituto de Histología y EmbriologíaUniversidad Nacional de CuyoMendozaArgentina

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