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Editor · #1

a) is released from all presynaptic neurones
b) is released from neurones supplying sweat glands
c) acts on pentametric nicotinic receptors
d) is inactivated by pseudocholinesterase at the nerve terminal
e) has the same action at smoth muscle as muscurine

Editor · #2

a]T
b]T-piloerector muscles and a few blood vessels are cholinergic.
C]T-each receptor has five glycosylated protein subunits which projects into the synaptic cleft.
D]F-inactivated by acetylcholinesterase.
E]T-M3 stimulation causes smooth muscle contraction.