Histology of a sympathetic ganglion. This is a collection of nerve cell bodies (round nuclei) and many glial cells and nerve processes. Sympathetic ganglia serve to relay nerve impulses towards and away from the central nervous system. Haematoxylin-eosin stain. From Sobotta, J. (1911) Atlas und Lehrbuch der Histologie und mikroskopischen Anatomie des Menschen. J.F.Lehmann, Munchen, Plate 17. Magnification x250 printed at 10 cm wide.