the monoamines and the large number of neuropeptides ( over 30 ) now known to exist in c.n.s . may be chemical signals used for a different type of chemically addressed form of information transmission between neurons in c.n.s . characterized by less precise spatial connections , a slower time course and a far richer diversity of chemical signals than used in classical synaptic neurotransmission .
C0027882
neurons
C0027793
neurotransmission