(chemical signal), which creates the synapse that communicates with neighboring neurons. When this synaptic connection occurs between a large number of neurons, a neural network is formed. In the process of creating a synaptic connection, there is a synaptic transmission from the presynaptic neuron to the postsynaptic neuron.

While it is true that the transmission of a signal within a neuron is carried out through chemicals, the transmission of a signal within a neuron, from the dendrites to the