On the way home from the library last night you heard the footsteps of someone following you. You turned and saw the shadow of a large man heading towards you. You ran to your car faster than you had ever run. By the time you got to your car your heart rate was rapid and you were sweating. This fight or flight response was most likely the result of activity in your somatic nervous system. central nervous system. parasympathetic nervous system. sympathetic nervous system