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.
In general if an autographed baseball is worth $100. the same autograph on a 8 x 10 photo $50. a cut signature $20. on a bat $150. The percentage of the price could also vary based on the popularity of the player, and how sought after the signature is. A Stan Musial signed baseball is worth about $80.-$150. A Stan Musial Signed 8 x 10 Photo is worth about $50.-$100.