ELI5: Explain Like I'm 5

Trigger zone

Okay kiddo, imagine your body is a big city with lots of different parts like streets and buildings. One important part of your body is your nerves, and they are like messengers that go around the city to get information to your brain. But sometimes they need to send important messages really fast, like if you touch something hot and your brain needs to know right away so you can move your hand.

That's where the trigger zone comes in. It's like a special door that the nerve messengers have to go through to get to your brain really quickly. The trigger zone is a tiny part of the nerve cell where electricity flows really fast, almost like a super highway for messages.

So when something happens, like you touch something hot or prick your finger, the nerves in that area send a message through the trigger zone really quickly. The message then travels up the nerve to your brain so you can feel it and react.

In summary, the trigger zone is like a fast lane for nerve messages to get to your brain quickly so you can react to things like heat or pain.