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.
But if your toddler's constipation lasts for two weeks or more it's called chronic constipation, and you should see your pediatrician. Your doctor may ask you to keep track of your child's bowel movements -- how often they occur, how big and hard they are, and if there is any blood in your toddler's stool.You should also look for other symptoms that can occur along with constipation, such as:1  Stomachache. 2  Bloating. 3  Nausea. 4  Loss of appetite.ut if your toddler's constipation lasts for two weeks or more it's called chronic constipation, and you should see your pediatrician. Your doctor may ask you to keep track of your child's bowel movements -- how often they occur, how big and hard they are, and if there is any blood in your toddler's stool.