Ultrastructural Features of Myenteric Ganglia of Adult Wistar Rats (Rattus norvegicus)

Authors: Natali, M. R. M.¹; Miranda Neto, M. H.¹; Orsi, A. M.²

Source: Anatomia, Histologia, Embryologia, Volume 29, Number 6, December 2000 , pp. 393-397(5)

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Abstract:

Summary

The ultrastructural features of the ganglia of the myenteric plexus exhibit changes according to the animal species. These myenteric ganglia in the duodenum of adult rats of the Wistar strain were characterized ultrastructurally in this work. Those ganglia were depicted as compact structures, composed of neurones and glial cells, forming a dense neuropil surrounded by a continuous basal lamina and collagen fibrils. Glial cell bodies were smaller and apparently more frequent than neuronal cell bodies, being morphologically distinguished by nuclear features. In the neuronal extensions granular and agranular synaptic vesicles of different sizes predominate, in addition to mitochondria and myelinized profiles. Gliofilaments were not observed on the glial extensions of the rats.

Document Type: Research article

Affiliations: 1: Department of Morphophysiological Sciences, State University of Maringá, Paraná, Brazil; 2: Department of Anatomy, Institute of Biosciences, UNESP, Botucatu, São Paulo, Brazil; *Corresponding author

Publication date: 2000-12-01