Consists of nerves and ganglia

• A. Central nervous system
• B. Peripheral nervous system
• C. Autonomic nervous system
• D. Somatic nervous system

Answer: (B)

The nervous system is organized into two main parts: the central nervous system and the peripheral nervous system. The central nervous system, made up of the brain and spinal cord, handles processing and integration of information. The peripheral nervous system includes all neural elements outside the brain and spinal cord, and its defining feature is that it consists of nerves and ganglia. Nerves are bundles of axons that carry signals to and from the CNS, while ganglia are clusters of neuron cell bodies located outside the CNS. This arrangement enables the body to connect with the CNS, transmitting sensory information to the brain and carrying motor commands back to muscles and organs. Subdivisions like the autonomic and somatic systems are part of the peripheral nervous system, but the key descriptor here—nerves and ganglia outside the CNS—points to the peripheral nervous system.