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.
Expect not to have a bowel movement for a few days after the castor oil works. Castor oil is known to clean out the entire intestinal tract rather than just the colon. Because of this, it is common to not have another bowel movement for 2 or 3 days after your constipation is successfully cleared.