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.
Causes of constipation. Constipation usually occurs when stools remain in the colon (large intestine) for too long and the colon absorbs too much water from them, causing the stools to become hard and dry.Most cases of constipation are not caused by a specific condition and it may be difficult to identify the exact cause.auses of constipation. Constipation usually occurs when stools remain in the colon (large intestine) for too long and the colon absorbs too much water from them, causing the stools to become hard and dry.