The nervous system is a complex network that has an important role to regulate every activity in the body. Some functions of the nervous system that you often hear are to think, see, move, to regulate various body organs. The complex nervous system can be divided into two large groups, namely the central nervous system and the peripheral nervous system. The central nervous system consists of the brain and spinal cord, while the peripheral nervous system consists of the somatic and autonomic nervous system. Both of these systems work together to control all activities in the body, both conscious and unconscious. Nervous System Parts in Humans In general, the nervous system consists of several parts, namely the brain, spinal cord, and nerve cells (neurons). The functions of these parts are interconnected with one another. The following is the explanation: Brain The brain is the control center whose job is to regulate all functions in the body, from movement, secretion or secretio