How do are brains tell are body parts what to do?

Question: How do are brains tell are body parts what to do?
- Keywords:
  brain,
  human body
Asked by science master to Maureen, Bernard on 6 Nov 2018.
- Bernard answered on 6 Nov 2018:
  
  They are all connected by the central nervous system.Look at a diagram in a biology text book.
- Maureen answered on 6 Nov 2018:
  
  You have a whole system of nerves which are connected. These nerves can tell each other things by signaling with chemicals and electrical signals. Your motor neurons then control your body parts and do what the brain says!

Question: How do are brains tell are body parts what to do?