What functions do different departments of the analyzer perform in the human body?

An analyzer is a system of neurons that perceive irritations, conduct nerve impulses and provide information processing. Each analyzer consists of three parts.
1) The peripheral department is the receptors. The receptor perceives irritation and turns it into a nerve impulse, excites a sensitive neuron.
2) The conduction section is the nerves and pathways. They conduct excitement to the central nervous system.
3) Central, located in the cerebral cortex – the final analysis of information, the appearance of the image.

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