This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Preganglionic neurotransmitter in sympathetic division of autonomic nervous system is: March 2013 
Select and explain. 
A. Noradrenergic, B. Adrenergic, C. Acetylcholine, D. Dopamine
C: Acetylcholine
Answer: C: Acetylcholine 
Explanation: Ans. C i.e. Acetylcholine In the autonomic nervous system, acetylcholine is released in the following sites: All pre- and post-ganglionic parasympathetic neurons All preganglionic sympathetic neurons - Preganglionic sympathetic fibers to suprarenal medulla, the modified sympathetic ganglion; on stimulation by acetylcholine, the suprarenal medulla releases epinephrine and nor epinephrine Some postganglionic sympathetic fibers - Sudomotor neurons to sweat glands.