The nervous system's main function is to control the operation and movements of the body based on the sensory information it gathers, both internally and externally. The functions include: * To maintain your consciousness. * To help you respond to your senses. * To help coordinate what you sense and feel. * To allow learning and memory. * To control other body systems The function of the nervous system is to coordinate the activities of the body. Main Function of the Nervous System is to coordinate the activities we do consciously and voluntarily as well as those that occur unconsciously or involuntarily.