Parasympathetic nervous system is one of the two main divisions of the autonomic nervous system (ANS). It general function is to control homeostasis and the body’s rest-and-digest response. Its function is to control the body’s response while at rest. The sympathetic nervous system (SNS) is one of the two main divisions of the autonomic nervous system (ANS. Its general action is to mobilize the body’s fight-or-flight response. Its function is to control the body’s response during perceived threat.
