The border between the central and the peripheral nervous system in the cat cochlear nerve: A light and scanning electron microscopical study

► The peripheral and central nerve border of the VIIth nerve is sharply delimited. ► The nodes of Ranvier at the border are in register. ► The border is a potential weak point as it fractures easily during sample preparation. ► This region is relevant clinically in head injury leading to hearing loss and in Schwannoma surgery. ► Understanding this region is also relevant to strategies for regeneration of the cochlear nerve.