Best Answer: The peripheral nervous system, which it is a component of. The sympathetic and parasympathetic systems are components of the autonomic nervous system.
Also, make the call if: 1  Constipation is a new problem for you. 2  You have blood in your stool. 3  You are losing weight even though you are not dieting.  You have severe pain with bowel 1  movements. Your constipation has lasted more than 2 weeks.  You have pencil-thin stools.
Poor diet and lack of exercise are usually the causes of short-term constipation. In most of these cases, constipation is temporary and not serious. Chronic, long-term constipation may occur from disorders such as Irritable Bowel Syndrome. Understanding the causes, prevention, and treatment of constipation will help most people find relief.