The nervous system has two different major parts. The two parts are the central nervous system and the peripheral nervous. The central nervous system or the CNS contains the brain and the spinal cord. All together, the brain and the spinal cord serve the nervous system's command station.
== Greg Maddux Signed Baseball Card == A Greg Maddux autographed baseball card is worth between $20. -$30. Prices may vary based on condition, and the type of authenticity that accompanies the signature. Signatures that have not been authenticated could sell at half the market value or less.
Valuing 1928 Dollar Bills. There are several versions of the 1928 one-dollar silver certificate. The notes feature a blue seal and a portrait of George Washington on the front and a distinctive design on the back that earned them the nickname funnybacks. In good or average condition, these bills are usually worth about $12.