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.
This is also his most expensive rookie card. An autographed 1995 Signature Joe DiMaggio Rookie Card, #JD2/#300 and graded PSA/DNA Slabbed can be purchased for about $275 and a rare autographed 1993 Pinnacle Card #4, for about $400. Accomplishments during his professional baseball career are truly unrivaled.