The other division of the nervous system is called the peripheral nervous system why do they call this?

The peripheral nervous system (PNS) is called so because it encompasses all the nerves and ganglia outside the central nervous system (CNS), which consists of the brain and spinal cord. The term "peripheral" indicates that it operates on the periphery of the body, connecting the CNS to limbs and organs. The PNS plays a crucial role in transmitting sensory information to the CNS and relaying motor commands from the CNS to the muscles.