像许多其他影响神经元放电的物质一样，腺苷必须首先与神经元膜上的特定受体结合。

Like many other agents that affect neuron firing, adenosine must first bind to specific receptors on neuronal membranes.

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当烟被吸入时，所有这些成分形成肺膜上的沉淀物。

As smoke is breathed in, all those components form deposits on the membranes of the lungs.

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绒膜绒毛是胎儿绒毛膜上的一种微小的血管凸出物。

A chorionic villus is a minute vascular projection on the fetal chorion.

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They go across the membrane - this is the trans-membrane part of the receptor that's going across the membrane.

它们跨越式的存在于细胞膜上,这就是受体的跨膜部分,它跨越了细胞膜

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I mentioned a little bit that this membrane is not just lipid bilayer but there's also proteins that are inserted into the membrane.

我之前说过,这层膜不仅仅是一层脂质双分子层,而是有很多蛋白质嵌插在膜上的

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That change happens because something gets triggered in the membrane, and what gets triggered is a voltage gated sodium channel, which is shown here.

变化的原因是膜上某些东西被触发了,被触发的是钠离子电压门控通道,展示在这儿了

耶鲁公开课 - 生物医学工程探索课程节选