Which system transmits information to and from the CNS and is located outside the CNS?

• A. Peripheral Nervous System
• B. Central Nervous System
• C. Endocrine System
• D. Limbic System

Answer: (A)

The peripheral nervous system is the network of nerves outside the brain and spinal cord that links the CNS to the rest of the body. It carries sensory information from the body to the CNS and transmits motor commands from the CNS to muscles and organs, enabling you to sense and respond to your environment. It includes pathways for both voluntary movements (somatic) and involuntary functions (autonomic), all relying on neural signals traveling along neurons. The central nervous system, by contrast, is made up of the brain and spinal cord themselves, located inside the CNS. The endocrine system communicates through hormones in the bloodstream rather than through nerve impulses. The limbic system is a group of structures within the brain involved in emotion and memory, also part of the CNS. So the described system is the peripheral nervous system.