Brain
Brain What is a brain? The brain is made of 100 billion tiny nerve cells, each connected with up to 25,000 others. These nerve cells make your brain clever making it to do everything from analyzing the signals coming from your senses to controlling your body and of course thinking. What goes on in the brain? Various things occur in the different parts of the Drain the center of the brain is at the top of the neck where nerves from the spine join it. This is where body functions like breathing and heart rate are controlled. Just behind this IS the 'cerebellum which controls balance and coordination. Wrapped around the outside is the cerebrum where you think, and complex tasks like speaking and actions you decide on are controlled. What is the nervous system? The nervous system is the Day s hot line carrying messages from the Drain to every organ and muscle in the body, and sending back a constant stream of information to the brain about the word both inside and outside...