Acetylcholine acts as one of these chemicals that pass nerve impulses across synapses
.... 
Acetylcholine (ACh) [DOC] [TLE] Neurotransmitters, Synapses, and Impulse Transmission - Molecular ... [PAR] As noted earlier, synapses are the junctions where neurons pass signals to other 
... nerve-to-muscle and nerve-to-gland signaling rely on chemical synapses at 
which the presynaptic neuron releases a chemical neurotransmitter that acts on 
the ...