<prompt> Major neurotransmitter released at end organ effectors of the sympathetic division of autonomic nervous systemAdrenalineNor adrenalineDopamineAcetylcholine  <response>: Refer katzung 10e p76,kdt 6e 116 Neurotransmitter secreted at the end organ effects of sympathetic system is mostly nor adrenaline except hair follicles and sweat glands, where it is Acetylcholinesterase where as it is acetylcholine in parasympathetic system 