Its axon is discontinuous and is separated by a ganglion, forming a two-neuron chain. The autonomic nervous system has two functionally different subdivisions. The sympathetic division enables the human body to involuntary respond to emergency situations, creating a “fight or flight” response. The parasympathetic division enables normal visceral functions by allowing storage of energy to conserve body reserves.Read more: Difference Between Somatic and Autonomic Nervous System | Difference Between http://www.differencebetween.net/science/health/difference-between-somatic-and-autonomic-nervous-system/#ixzz67oVEVUJY