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Human Body & Health

Which neural outcome arises when vesicular neurotransmitter depletion occurs?

A)Synaptic fatigue reduces signal transduction
B)Action potential propagation becomes enhanced
C)Myelin sheath integrity is compromised
D)Nodes of Ranvier are temporarily blocked

💡 Explanation

When neurotransmitter vesicles are depleted, synaptic fatigue occurs because neurotransmitter release diminishes, weakening signal transmission. Therefore, synaptic fatigue results, rather than enhanced action potential or direct myelin sheath damage, since these depend on different cellular mechanisms.

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