Muscarinic acetylcholine receptors are in a place.
 The nicotine ACh receptor is also a Na+, K+ and Ca2+ ion channel
== Pharmacology ==Acetylcholine receptor modulators can be classified by which receptor subtypes they act on:== Role in health and disease ==Nicotinic acetylcholine receptors can be blocked by curare, hexamethonium and toxins present in the venoms of snakes and shellfishes, like -bungarotoxin

