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 is usually defined as fewer than three bowel movements a week, or your stools are hard, dry, and small, and evacuation is painful or difficult. Fortunately, constipation is not generally a dangerous condition and it doesn't last a long time. Read more: Constipation: Foods to Eat, Foods to Avoid.