Final answer:
Pathophysiologic pain is related to an abnormal function of the nervous system, which regulates the processing of information and behavior control, including the perception of pain.
Step-by-step explanation:
Pathophysiologic pain occurs because of malfunction within the nervous system. The nervous system is responsible for the regulation and processing of sensory information, including pain, and for behavior control. Related systems, including the parasympathetic and sympathetic nervous systems, play roles in this function as well. Pathophysiologic pain may not be caused by actual tissue damage but rather by an abnormal function of the nervous system, such as impaired control of motor movements or dysregulation of pain signals.