what is the function of the brain gcse
1 Together, the spinal cord and the brain make up the Central Nervous System (CNS). 2  The brain receives information, makes a decision and then sends instructions. 3  The spinal cord is made up of sensory and motor nerves and sends messages from the brain to the body. 5. 2  6. 3  7. 4  8. 5  Importance of the Spinal Cord The spinal cord acts as the primary information pathway between the brain and all the other nervous systems of the body. 6  It receives sensory information from the skin, joints, and muscles of the trunk, arms, and legs, which it then relays upward to the brain.