Neuronal fast signalling 1. The characteristics of the neuronal cell What would come to your mind as a defin on? It is a cell of the brain that is not correct, it is more widely spread CNS brain t spinal cord, SNP, enteric system. It is an exc table cell: it is tr ue but this property ss hared with other cells Muscles: striated muscle, heart. And other cells too suh as endocrine cells present an exc t abilit y that is the property to gene rate action potentials which propagates all over the cell. Excitability and conduction are linked properties, and in the cns we find a capabilit y of a very fast conduc tion1 . The chara cte ristics of the n euronal cell Wha t would come to your mind as a definition? It is a cell of the brain: that is not correct, it is more widely spread: CNS = brain + spinal cord, SN P, ente ric s ystem. It is an exc itable cell: it is tr ue but this property is s hared with other cells. Muscles: striated musc le, heart. And other cells too such as endoc rine cells present an exc itabilit y that is the property to gene rate action potentials which propagates all over the cell. Excitability and conduction are linked prope rties, and in the CNS we find a capabilit y of a very f ast conduc tion. Neuronal fast signalling