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.
Like headaches and colds, almost everyone will experience a bout of constipation at some point. For most, the episode is brief and wonât require medical treatment. But if you have problems for three months or longer, doctors start to get concerned.