What body parts make up the nervous system and how do they work together to transmit signals throughout the body?

The nervous system is made up of the brain, spinal cord, and nerves. These parts work together to transmit signals throughout the body. The brain processes information and sends signals through the spinal cord to the nerves, which carry messages to different parts of the body. This allows for communication between the brain and the rest of the body, controlling movement, sensation, and other bodily functions.