noun, plural: neurons

An excitable cell that has specialized cell parts (such as soma, dendrites and axons), structures (such as synapses), and chemicals (such as neurotransmitters) for conducting nerve impulses


Neurons are nerve impulse-conducting cells that make up nerves, brain and spinal column. Thus, they are regarded as the functional unit of the nervous system. A typical neuron has a nucleated soma and processes (axon and dendrites).

Neurons may be classified according to polarity:

Neurons according to the direction of nerve impulses:

Word origin: Greek neûron (sinew, cord, nerve)



Related term(s):

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