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.

这种设置有两个主要部分：发送信号的突触前神经元，它通过一个叫做突触前终端的节状结构进行传输，通常轴突终端。

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，其中一些推测它能阻止多再摄取，促进突触前多放，并阻断谷氨酸盐NMDA受体。

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放，但它最大的作用阻止突触前神经元终端受体的“再摄取”；两种作用都能使得神经递质，如多、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。