Matching Pairs Nervous SystemOnline version fives by Jocelyn Ochoa 1 Primary cell of the nervous system that transmits impulses 2 the in between sensory and motor neurons. 3 chemicals in junction to allow impulses to be started in a second neuron 4 A small gap or space between the axon of one neuron and the dendrite of another 5 brings senses changes messages to CNS 6 two main anatomical divisions of the nervous system 7 carry messages from cns. Instructs the body to do something.