An antagonist
A) blocks the action of neurotransmitters.
B) prevents reuptake of neurotransmitters.
C) mimics the action of a neurotransmitter.
D) extends the absolute refractory period of neural transmission.

Question

Quizplus · Accepted Answer

An antagonist blocks the action of neurotransmitters, meaning it inhibits or reduces the effects of a neurotransmitter on the postsynaptic neuron. It does not mimic the action of a neurotransmitter, prevent reuptake, or extend the absolute refractory period.

An Antagonist