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 order for you to receive the greatest value for the ball there are two thing â¦ s that I would suggest #1 - send it to PSA/DNA for authentication-The $150 cost is well worth giving your baseball the seal of approval for all prospective buyers.ickey Henderson Signed Bat   A Rickey Henderson signed baseball bat is worth between $100.-$150. The most preferred bat for a signature is a bat closest to the size, and â¦ model the player used. The better the quality of the bat the higher collectors value it will have.