Major neurotransmitter released at end organ effectors of the sympathetic division of the autonomic nervous system is
Adrenaline
Noradrenaline
Dopamine
Acetylcholine
Neurotransmitter secreted it in organ effectors of sympathetic system is mostly nor-adrenaline (except in sweat glands and haur follicle, where it Is acettacetylch) where as it is acetylcholine at parasympathetic system Ref-KDT 6/e p116
General anatomy