eli5 : how do nerve impulses travel ?

Question

i tried so hard to understand but i couldn’t

In: Biology

Answer 1

Think of a nerve as a cable with a squirt gun and water sensor at the ends. You put 3 of these things down, one after the other. Let’s call these Number 1, Number 2, and Number 3. You splash water on one end of number 1, on it’s water sensor. Number 1 sends a signal down the cable to the squirt gun which squirts water at number 2. Number 2’s water sensor detects water and sends a signal down the cable to it’s squirt gun which shoots Number 3.

Instead of water and water sensors, nerves use neurotransmitters which travel from one end of a nerve to the next nerve.