MORPHOLOGICAL FEATURES OF THE INTRAMURAL NERVOUS SYSTEM OF THE COLON AND COELIAC PLEXUS IN BACTERIAL DYSENTERY

Abstract

The morphological features of the intramural nervous system of the distal large intestine and coeliac plexus ganglia were studied by using histological and electron microscopic methods in 12 patients who died from complications of bacterial dysentery. Bacteriological examination of the taken pieces of tissues of the large intestine revealed shigella. The control group consisted of 5 deaths as a result of sudden death. For histological examination, tissue pieces of intramural microganglia and coeliac plexus were fixed with 12% formalin and impregnated by the method of Bilshovsky-Gross and Rasskazova. For electron microscopy, sections obtained on a Reichert-112 ultratome were contrasted with uranyl acetate, counterstained with a solution of lead citrate, and examined under a “Ceyms 100S” electron microscope.

It was revealed that in the case of bacterial dysentery, degenerative and reactive-hypertrophic processes occur in the structural elements of the intramural nervous system of the distal large intestine and the ganglia of the coeliac plexus. It was found that among the structural elements of microganlia of the distal large intestine and coeliac plexus, pronounced changes occur in myelinated axons.