The release of neurotransmitter molecules from one neuron and their attachment to receptor sites on another keep a nerve impulse moving.
神经递质分子从一个神经原释放后，附着到另一个接受点，令神经冲动保持运动的状态。
2
The scientists found that if a nerve cell is lacking the EphA4-receptor, the neighboring astrocyte increases its transporter numbers.
科研人员发现，当神经细胞缺乏EphA4受体时，与它邻近的星状细胞就会产生更多的转运蛋白。
3
The optic disc is a blind spot because no light receptor cells are present in this area of the retina where the optic nerve and retinal blood vessels leave the back of the eye.