What does the Spinal Cord do?

The nerves within the spinal cord are grouped together in different bundles called Ascending and Descending tracts – a two way traffic flow.
Ascending tracts within the spinal cord carry information from the body, upwards to the brain, such as touch, skin temperature, pain and joint position.
Descending tracts within the spinal cord carry information from the brain downwards to initiate movement and control body functions.