So this basically means we pass down the electrical signal from the neuron to our muscle muscle cell. Now, how exactly does this actually take place? Well, let's take a look at the following diagram and recap. Basically, the action potential travels down the axon of the neuron and to the axon terminal. This is the axon terminal of the presynaptic neuron cell. Now, once the action potential arrives, it indirectly causes the release of these synaptic vesicles that carry a special type of chemical known as neurotransmitter.