(N/A) The Central Neural System $(CNS)$ and the Peripheral Neural System $(PNS)$ differ in the following ways:
$1$. Composition: The $CNS$ consists of the brain and the spinal cord,which act as the command and control centers. The $PNS$ comprises all the nerves of the body associated with the $CNS$ (cranial nerves and spinal nerves).
$2$. Function: The $CNS$ is responsible for information processing and decision-making. The $PNS$ is responsible for relaying information between the $CNS$ and the rest of the body.
$3$. Protection: The $CNS$ is protected by the skull and the vertebral column. The $PNS$ lacks such bony protection.