Hey Cell Body #1, pass this electric message to Cell Body #2. Oh no? How will you pass the message to Dendrite over at Cell Body #2? There's a big empty synapse in the way! Were going to need a neurotransmitter to help us out.
Welcome to your brain in action. Here we have three neuron cells: Axon and Dendrite #1, Axon and Dendrite #2, and Axon and Dendrite #3.
I'll help you. Bridging the synapse is what I do best!
This was working pretty well. So the brain kept passing neural impulses.
You know, Brain, we could use some help. You know what would make this easier? If we had some myelin sheath, to help us work faster.
That's a great idea! Thanks Axon #1
Axon #1 was right. Myelin helped him/her pass the electric impulse faster. So the brain sent more messages.
Here I am. Did someone order some neural insulation?
Hey, no one is passing us an electric impulse!We're shriveling up here, said axon and dendrite #3.
And so, since Cell Body #1 and #2 were used and the time, they grew more and more efficient at sending messages.