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1 A neurotoxin is a toxic agent or substance that inhibits, damages or destroys the tissues of the nervous system, especially neurons, the conducting cells of your body's central nervous system. 2  This is an example of a cytotoxin.
A cell that supports the functions of the nervous system by reacting to stimuli and transmitting nerve impulses. A neuron, or nerve cell, is highly specialized and amitotic. The term amitotic means that if a neuron is destroyed it cannot be replaced, because neurons do not undergo mitosis.