What are nerves?

Nerves

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They are elongated thread-like structures of the nervous system which are formed by grouping and regrouping of nerve fibers inside the sheath of connective tissue. Connective tissue sheaths keep the nerve fibers insulated from one another. Like neurons, on the basis of their functioning, nerves are of three types-sensory, motor and mixed. Mixed nerves contain both sensory and motor fibres.