Why isn't an action potential transmitted from a postsynaptic membrane to a presynaptic terminal?

A. Presynaptic terminals have no acetylcholine receptors.
B. Presynaptic neurons do not have a resting membrane potential.
C. Acetylcholine can only diffuse in one direction across the synaptic cleft.
D. Synaptic vesicles in the postsynaptic membrane are inactive.
E. Acetylcholine is destroyed too fast.


A

Anatomy & Physiology

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