nerve impulse

American  

noun

Physiology.

1. a progressive wave of electric and chemical activity along a nerve fiber that stimulates or inhibits the action of a muscle, gland, or other nerve cell.

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nerve impulse British  

noun

1. the electrical wave transmitted along a nerve fibre, usually following stimulation of the nerve-cell body See also action potential

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Etymology

Origin of nerve impulse

First recorded in 1895–1900

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Example Sentences

See Examples For:

nerve impulse

This means light must pass through layers of nerve fibres before reaching the photoreceptors – specialised cells responsible for detecting light and converting that into a nerve impulse to send to the brain.

From Science Daily ● Jul. 11, 2026

The authors propose that the Neanderthal variants may sensitise sensory neurons by altering the threshold at which a nerve impulse is generated.

From Science Daily ● Oct. 10, 2023

Also shown are two types of glial cells: astrocytes regulate the chemical environment of the nerve cell, and oligodendrocytes insulate the axon so the electrical nerve impulse is transferred more efficiently.

From Textbooks ● Jun. 9, 2022

A nerve impulse opens the Ca+2 channel, which makes Ca+2 enter the cell and depolarizes the membrane.

From Textbooks ● Jun. 9, 2022

Every time a nerve impulse is transmitted from one nerve cell to the next, a molecule of acetylcholine is consumed.

From How and When to Be Your Own Doctor by Steve Solomon

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