CELLULAR COMPOSITION OF THE SUBMUCOSAL AND INTRAMUSCULAR NERVE PLEXUS GANGLIA IN THE LARGE INTESTINE

Abstract

The article provides information on the research conducted to investigate the cellular composition of submucosal intramuscular plexuses of the nerve ganglia of the human large intestine. For this purpose, various sections of the large intestine taken from 61 corpses belonging to different ages of extrauterine development of humans and both sexes, 64 pieces of resection and biopsy material obtained as a result of surgical interventions on this organ were stained with hematoxylin-eosin, methylene blue, examined by the Van Gieson method , a universal impregnation method. It has been established that the ganglia of the colon plexuses are clearly separated from the surrounding tissue and are compact structures consisting of the bodies of neurons and glial cells. In most cases, two morphological types of neurons are identified in the ganglia - Dogel cells type I and II. Type I Dogel cells have many processes. This gives type I Dogel cells a stellate, elongated appearance. Type II Dogel cells are round, oval, or fan-shaped and have smoother contours than type I Dogel cells. Using the method of universal impregnation, glial cells and interstitial cells of Cajal are constantly detected in the ganglia of the plexuses of the large intestine and in the muscular layer and submucosa of this organ.