The central nervous system is represented by the brain and spinal cord, the peripheral – by nerves, nerve nodes and endings. The nervous system can be divided into somatic, which controls the work of muscles and obeys human consciousness, and autonomous, or autonomic, which controls the internal organs regardless of the will of the person.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.