CNS

• The Central Nervous System is made up of the brain and spinal cord.
• The brain is the centre of all conscious awareness
• The brain's outer layer, the cerebral cortex, is highly developed in humans and is what distinguishes our higher mental functions from those of animals.
• The spinal cord is an extension of the brain. It is responsible for reflex actions such as pulling your hand away from a hot plate
• The spinal cord is responsible for passing messages to and from the brain and connects the nerves to the PNS