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Question

The unit cell of the nervous system is called as _________.

This question was previously asked in
RRB Technician 2026 Grade 3 Question Paper (7-Oct-2026) (Shift 3)
The correct answer is

Neuron

The neuron (nerve cell) is the structural and functional unit of the nervous system. It receives information, conducts it as an electrical impulse and passes it on to the next cell.

A neuron has three parts: the cell body (cyton) with the nucleus, short branched dendrites that receive impulses, and a long axon that carries impulses away from the cell body.

Axon and dendrite are only parts of a neuron, not complete cells, so they cannot be the unit of the nervous system. A muscle fibre is the cell of muscular tissue, which acts as an effector, not a unit of the nervous system.

Hence, the unit cell of the nervous system is called a neuron.

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Important Questions from Nervous System

  1. Our brain mainly depends on which of the following food?

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