[Ultrastructure of cells of the human intraspinal organ]

In the intraspinal organ at the level of the IV--V lumbar segments of the spinal cord, in 7 women and 8 men (30-45 years of age) certain cells have been studied electron microscopically. According to their ultrastructure, they are divided into ectogliocytes without processes, plasmic and fibrillar astrocytes, mesogliocytes, tissue basophils and cells with signs of secretion. Variability of organells of the secretory cells and their inclusions is connected with production and exocytosis of the secrete.