WBBSEClass XLife Science1 (d) Nervous System02 Mark2025 Moderate

QQuestion

Establish the relationship between neuron, nerve fiber and nerve

Exam-ready answer 02 Mark

Answer

A neurone or nerve cell with its processes is the structural and functional unit of the nervous system. An axon of a neurone with its myelin sheath and neurilemma is called a nerve fibre. A bundle of many nerve fibres, enclosed by connective tissue coverings (endoneurium, perineurium and epineurium), along with blood vessels and fat cells, forms a nerve.

Thus neurone gives rise to nerve fibre and many nerve fibres together constitute a nerve, but their function is same—conduction of nerve impulse.

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