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.
Constipation: Symptoms, treatment and prevention. What is constipation? Constipation is when a person is not passing stools (poo) regularly, or cannot completely empty their bowels. Constipation is common and affects around 1 in 7 adults and 1 in 3 children.