How does your brain know where your limbs are without looking at them?

Question

As an example, if you or someone else randomly moves your arms you know exactly where they are relative to other parts of your body, how does the brain know this?

In: 108

Answer 1

Your body parts are connected to your brain with nerves.

Those nerves let you control your muscles, sense heat, touch, and pain.

These nerves also give you a vague sense of where those body parts are.

You also have a mental picture of how your body is shaped and what moves are possible, so when combined with the information from your nerves gives you a pretty good idea of where you body is positioned.