I found it out-- neuron transmitter.# Biology - 生物学
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In the human brain there are more than hundred billion nerve cells.
They are connected to each other through an infinitely complex
network of nerve processes. The message from one nerve cell to
another is transmitted through different chemical transmitters.
The signal transduction takes place in special points of contact,
called synapses. A nerve cell can have thousands of such contacts
with other nerve cells.
The three Nobel Laureates in Physiology or Medicine have made
pioneering discoveries
They are connected to each other through an infinitely complex
network of nerve processes. The message from one nerve cell to
another is transmitted through different chemical transmitters.
The signal transduction takes place in special points of contact,
called synapses. A nerve cell can have thousands of such contacts
with other nerve cells.
The three Nobel Laureates in Physiology or Medicine have made
pioneering discoveries