Sure, here are four supporting points to illustrate the statement that the brain and spinal cord are the central part of the nervous system:
1. The brain and spinal cord are the two main parts of the nervous system.
2. The brain is the control center of the nervous system. It receives information from the senses and sends out commands to the muscles.
3. The spinal cord is a long, thin bundle of nerves that runs from the brain down the back. It carries messages between the brain and the rest of the body.
4. The brain and spinal cord are protected by the skull and the spinal column.
In addition to these four points, the brain and spinal cord are also responsible for many other important functions, including:
* Thinking
* Learning
* Memory
* Emotions
* Movement
* Sensation
* Regulation of body functions
Without the brain and spinal cord, the nervous system would not be able to function properly. This would mean that we would not be able to think, learn, move, or feel anything. We would also be unable to regulate our body temperature, heart rate, or breathing.
In short, the brain and spinal cord are essential for life. They are the central part of the nervous system and they control all of our thoughts, feelings, and actions.