Which of these happens first in a cholinergic synaptic transmission?
A. Sodium ions enter the postsynaptic cell.
B. A postsynaptic potential is produced.
C. Acetylcholine diffuses across the synaptic cleft.
D. Acetylcholine binds to ligand-gated ion channels.
E. The synaptic vesicles release acetylcholine.
Answer: E
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