Message sare relayed through the nervous system via neurons by passing through your brain. A message passes from your brain to your spinal cord to create movement.  

 

synapse:

When a nerve impulse reaches the synapse at the end of a neuron, it cannot pass directly to the next one. A synapse is the junction between two neurons or nerve cells where there is a small gap that neurotransmitters help nerve impulses to cross.

 

An example of a pathway a message may take place...

A pathway where a message may take place is the brain as a message is passed.