Hey! @AriHoresh
As the somatic nervouse system plays a role in reflex arc is it true to state that:" SNS not only controls voluntary movement but also it controls involuntary movement"?
(Sympathetic nervous system) SNS
sympathetic nervous system directs the body’s rapid involuntary response and connect the central nervous system to the body’s muscles to control voluntary movements
Hey Amir!
Actually there is a difference between sampathetic nervous system and the somatic nervous system, Their job and their neuron pathways are different.
But SNS is referred to both of them!
Somatic nervous system controls both voluntary and involuntary movements.
You’re welcome and my name is Amin 
Not Amir
I think SNS in your question is sympathetic nerve system