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.
It sounds like you may be constipated. We diagnose people with constipation when it has been more than 3 days since their last bowel movement, or it has been much longer than it normally has. If you feel that you are really backed up and it has been longer than it is normally for you, then I would suggest trying actively to have a bowel movement. The first thing you can do is increase the amount of fiber that you are eating.