The way signals move in our brain cells is amazing! Here are the main things that help with this:

1. Action Potentials: These are fast electrical signals that help messages travel quickly.
2. Synaptic Vesicles: These little bags hold chemicals called neurotransmitters and release them when needed.
3. Receptor Specificity: The receptors on the receiving end only react to certain signals, so the messages stay clear.
4. Reuptake and Degradation: By quickly removing neurotransmitters, our brain keeps its communication clear and focused!

Isn’t it cool how all these parts work together to make our brains function so well?