Studies have shown that biological neurons are mostly two parts, one of which is the cellular body and the other is lead. Cellular bodies, including the ribosomal plasma lattice, the Golgi apparatus and other organelles, can process the impulse transmitted by the last neuron and thus alter the potential of the cell membrane. When the potential of the cell membrane exceeds a certain threshold, the cell is stimulated and transferred from the axon to the next neuron, otherwise the cell inhibits unstimulated transmission. Axon is the output end of the neuron, and its end is also called nerve fiber, which can transmit arousal to the next neuron. The axon described above is one of the dirty types, and the other - dendrites. Dendrites are short branches of neurons with large numbers of branches that can be used to stimulate hundreds of millions of neurons. The axon of hundreds of millions of neurons and the dendritof of the nearest neuron are linked by synapses, forming a biological neural network.