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The Wronged Neural Signal Receptor

As we all know, our nervous system consists of thousands of millions of nerve cells (aka neurons), which are the smallest units in the system that can generate and transport neural signals. These neurons can not only do their jobs by themselves, but also join together to form a gigantic network that becomes the basis of our cognitive activities. How do neurons connect with each other? Neuroscientists have found that there exist specialized junctions between neurons, termed synapses, which seem to be some extremely tiny gaps. These gaps are not really “gaps”. Actually, neural signals can pass through these gaps from one neuron to the next without any difficulty. “How amazing!” as you might think, these magic “gaps” mainly rely on two kinds of small molecules, neurotransmitters and receptors, to fulfill their responsibilities.
Neurotransmitters, as their name, are signal molecules that can travel between synapses. Usually, when neural signal is transmitted to the location of synapse, ne…

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