This set-up has two principal parts: The cell that's sending the signal is the presynaptic neuron, and it transmits through a knoblike structure called the presynaptic terminal, usually the axon terminal.

这种设置有要部分：发送信号的细胞是突触前神经元，它通过一叫做突触前终端的节状结构进行传输，通常是轴突终端。

Its mechanism of action is poorly understood, however, some of the speculated ones are that it prevents dopamine reuptake, facilitates presynaptic dopamine release, and blocks glutamate NMDA receptors.

然而，人们对其作用机制知之甚少，其中一些推测是它能阻止多巴胺再摄取，促进突触前多巴胺释放，并阻断谷氨酸盐NMDA。

Cocaine increases the release of certain neurotransmitters, but it's biggest effect is blocking reuptake receptors on presynaptic axon terminals, and both actions keep neurotransmitters like dopamine, norepinephrine, and serotonin in the synapse longer and increases their effects.

可卡因促进一些特定神经递质的释放，但它最大的作用是阻止突触前神经元终端的“再摄取”；种作用都能使得神经递质，如多巴胺、去甲肾上腺素与5-HT，在突触间隙存留时间延长，从而加强他们的作用。