Muscarinic acetylcholine receptors are actylcholine cells.
 The alpha subunit of the G-protein activates guanylate cyclase (inhibiting the effects of intracellular cAMP) while the beta-gamma subunit activates the K-channels and therefore hyperpolarize the cell
The nAChR is found at the edges of junctional folds at the neuromuscular junction on the postsynaptic side; it is activated by acetylcholine release across the synapse

