The CNS works primarily on which parts of the body?

The central nervous system (CNS) is primarily composed of the brain and spinal cord, which are crucial for processing and transmitting information throughout the body. The brain is responsible for higher-level functions such as thought, perception, and coordination, while the spinal cord acts as a pathway for signals between the brain and the rest of the body. This structure allows the CNS to control and coordinate activities across various systems.

The other parts mentioned, such as the heart and lungs, muscles and joints, or kidneys and liver, are primarily regulated by the peripheral nervous system or other body systems rather than directly by the CNS. The role of the CNS is to integrate sensory information and facilitate responses, making the connection between the brain and spinal cord essential to its function.