What is the structure of the human nervous system?

A person has a brain and spinal cord, they make up the central nervous system. An integral part of the nervous system is peripheral. This is a whole network of nerve fibers throughout the human body. It is thanks to the peripheral that there is a direct connection between the organs, where the nerve impulses appear, with the organs performing the necessary tasks. These are muscles, glands. Also, thanks to the somatic work, irritations from the outside world are perceived. The human autonomic system ensures the metabolism and functioning of internal organs like gears in a mechanical watch.