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.
A great baseball collection addition is a Miguel Cabrera rookie card. In fact, collectors and sports enthusiasts have two options. The first is the 2003 Topps #T126 Miguel Cabrera Rookie Card for the Detroit Tigers in mint condition that sells for about $12. The second is the 2000 Topps Chrome #T40 Rookie Card .