Which system includes the brain, spinal cord, and nerves that control sensation, movement, and thoughts?

The nervous system is the body’s communication network, responsible for controlling sensation, movement, and cognitive functions such as thoughts. It comprises the brain, which processes and interprets sensory information, the spinal cord, which facilitates communication between the brain and the rest of the body, and peripheral nerves that extend throughout the body to transmit signals to and from the central nervous system. This integration allows individuals to perceive their environment, react to stimuli, and engage in complex thought processes.

In contrast, the circulatory system focuses on the transportation of blood, oxygen, and nutrients throughout the body, but it does not involve the control of sensation or thought. The endocrine system, while it regulates bodily functions through hormones, does not directly mediate sensation or motor control. Lastly, the musculoskeletal system provides structural support and enables movement but does so at the direction of the nervous system. Thus, the nervous system stands out as the key system that encompasses these critical functions.