GOLGI cells of the cerebellum of the dogfish, Scyliorhinus canicula (elasmobranchs): a GOLGI and ultrastructural study

Abstract

GOLGI cells of the dogfish cerebellum were studied using both GOLGI methods and electron microscopy. The arborization of their dendrites and axonal processes is limited to the granular layer, which in this species forms characteristic granular eminences. The dendrites are rather simple. However, the various axons of a GOLGI cell form a dense plexus of thin beaded processes whose complexity approaches that observed in the mammalian cerebellum. Electron microscopy shows that the GOLGI cells are medium-sized neurons whose processes contact cerebellar glomerulus of the granular layer. The GOLGI cell perikarya are also contacted by mossy fibres.