The autonomic nervous system (general visceral efferent pathway).
D001341:Autonomic Nervous System / Q000033:anatomy & histology* / Q000502:physiology; D001342:Autonomic Nervous System Diseases / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D005726:Ganglia, Parasympathetic / Q000033:anatomy & histology; D006801:Humans