homeostasis Parasympathetic vs. Sympathetic Nervous System sympathetic nervous system And this page gets science-y about it sympathetic nervous system source View Webpage sympathetic and parasympathetic responsible for the body’s rest and digest function. Parasympathetic vs. Sympathetic Nervous System diffen.com Sympathetic Nervous System (SNS) parasympathetic nervous system source sympathetic and parasympathetic parasympathetic nervous system (PNS)