Which part of the nervous system consists of the brain and spinal cord?

The central nervous system is composed of the brain and spinal cord, serving as the primary processing center for the entire nervous system. It is responsible for integrating sensory information, coordinating motor functions, and facilitating higher-level cognitive functions such as memory, reasoning, and emotions. The brain interprets signals from the body and formulates responses, while the spinal cord acts as a pathway, transmitting messages between the brain and the peripheral nervous system. This structure is crucial for maintaining homeostasis and responding to changes in the environment. Understanding the central nervous system's role helps clarify how it regulates bodily functions and orchestrates the responses to stimuli, which is fundamental knowledge for those studying medical or paramedic practices.