Explain that the brain and spinal cord form the central nervous system.

The central nervous system (CNS) consists of the brain and spinal cord, which play a crucial role in processing information and coordinating responses. The brain acts as the control center, interpreting sensory data and making decisions, while the spinal cord serves as a pathway for signals between the brain and the rest of the body. Together, they enable rapid communication and integration of information, allowing for complex behaviors and reflex actions. Understanding the structure and function of the CNS is essential for comprehending how humans interact with their environment.