Which of the following statements is/are true regarding acetylcholine? 1. It is the neurotransmitter at both sympathetic and parasympathetic ganglia. 2. It is rapidly hydrolysed in the body by cholinesterase. 3. It can produce both muscarinic and nicotinic actions. 4. It is the drug of choice as an antidote in atropine poisoning.
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only
All of the above
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