An anticholinergic agent is a substance which blocks the neurotransmitter acetylcholine in the central and the peripheral nervous system. An example of an anticholinergic is dicyclomine. Generally speaking, it reduces the effects mediated by acetylcholine on acetylcholine receptors in neurons through competitive inhibition. The effect is therefore reversible. Anticholinergics are classified according to the receptors that are affected: , Antimuscarinic agents operate on the muscarinic acetylcholine receptors. The majority of...
ANS is very complicated, why don't you read goodman goldman's or gillman.....whatever it is book on Pharmacology? or just check it out in some biology website