How does a signal travel down a neuron and what processes are involved in its transmission?

A signal travels down a neuron through a process called neurotransmission. When a signal reaches the end of one neuron, it triggers the release of neurotransmitters into the synapse, the small gap between neurons. These neurotransmitters then bind to receptors on the next neuron, causing an electrical signal to be generated and travel down the length of the neuron. This process involves the opening and closing of ion channels, which allow ions to flow in and out of the neuron, creating an electrical impulse that travels along the neuron's axon.