Nervous system
The nervous system is a complex biological network involved in controlling and coordinating the body's activities. It provides mechanisms that allow the body to interact with its environment and regulate internal processes. It is divided into the central and peripheral nervous systems, which work together to process information and respond to stimuli.
The central nervous system, consisting of the brain and spinal cord, serves as the control center. The peripheral nervous system comprises the many nerves that run throughout the body, connecting the central nervous system to the rest of the body. This complex organ system performs a wide range of functions, including processing sensory information, controlling motor activity, regulating physiological functions, and producing cognitive and emotional responses.