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.
1985 Topps Mark McGwire Rookie Card Worth. The only Mark McGwire rookie card that was produced in 1985 was produced by Topps. The Olympic card depicts Mark before he had played a game in the majors as he was brought up by the Oakland Aâs.