The Nervous System

• This amazing system is a vast network of fibres which enables the brain to communicate with the body's organs and systems
• Billions of electrical and chemical signals are transmitted around this network both to and from the brain.
• The system is split into central nerves and peripheral nerves.
• Together they form a network that spreads around the entire body.
• The central system is made up of the brain and spinal cord.
• The nerve fibres that branch out from the central nerves form theperipheral system.
• The peripheral nerves send information back to the central nerves for processing.
• Some nerves in the peripheral system are grouped together to keep close control over vital organs and functions.