The battery acts as the lightbulbs cell body by being its life support.
this train acts as an axon because its a trail for information or electrical currents to go down. It also acts as an action potential and synapse because like a train can transport one place to another the action potential and synapse transports electrical signals
My blanket acts as a myelin sheeth for my body
this branch acts as a terminal branch for the leafs as it speeds up the nutrients to them.
just like this spray can releases chemicals in the air, a neurotransmitter releases a chemical substance that is released at the end of a nuero fiber.
Just like a sponge can absorb things a reuptake absorbs a neurotransmitter.