Principles of neuronal connectivity in the brain

The neurons of the brain are connected to each other by synapses, and all their information is transmitted through synapses. Synapses are categorized into electrical synaptic transmission and chemical synaptic transmission. Chemical synapses are the main form of information transfer in the transmitting nervous system. When an electrical impulse reaches a synaptic vesicle, the bubble-like vesicles in the synaptic vesicle rupture, releasing the chemicals in them, known as neurotransmitters. These neurotransmitters try to carry the nerve message across the gap with the neighboring neuron, i.e., the neurotransmitter is embedded in a specific receptor site on the neighboring neuron, and the vesicle is aroused to carry the message on. Neurotransmitters that do not have a matching receptor site are then reuptaken and recycled into vesicles, and the rest of the neurotransmitter is broken down by the appropriate enzymes. Electrical synaptic transmission i.e. some neurons (very few) do not use neurotransmitters to pass information between synapses, forgoing chemical messaging and communicating directly through electrical connections. These specialized neurons with electrical synapses are concentrated in specific brain regions of the brain.