What are the other names used to denote sympathetic and parasympathetic nervous system

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What are the other names used to denote sympathetic and parasympathetic nervous system and why? What neurotransmitter is synthesized in the preganglionic fibers of the sympathetic neurons? What neurotransmitter is synthesized in the preganglionic fibers of the parasympathetic neurons? What neurotransmitter is synthesized in the postganglionic fibers of the sympathetic neurons? What neurotransmitter is synthesized in the postganglionic fibers of the parasympathetic neurons? What are the exceptions that I emphasized in the class with regards to ANS? Would you consider somatic nerve as part of the ANS? If not, why?