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- DictionaryNerve im·pulse/ˈnərv ˌimˌpəls/
noun
- 1. a signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.
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Oct 2, 2023 · A nerve impulse is an electrical signal that travels along a nerve fiber in response to a stimulus and serves to transmit a record of sensation or an instruction to act. Learn more about the word history, usage, and related terms of nerve impulse from Merriam-Webster Dictionary.
An action potential, also called a nerve impulse, is an electrical charge that travels along the membrane of a neuron. It can be generated when a neuron’s membrane potential is changed by chemical signals from a nearby cell.
Jun 16, 2022 · Nerve impulse. (1) The movement of action potential along a nerve fiber in response to a stimulus (such as touch, pain, heat or cold). (2) The relaying of a coded signal that travels along a nerve cell membrane to an effector, such as muscle, gland or another nerve cell.
A nerve impulse is a sudden reversal of the electrical charge across the membrane of a resting neuron. The reversal of charge is called an action potential. It begins when the neuron receives a chemical signal from another cell.
Transmission of a signal between neurons is generally carried by a chemical called a neurotransmitter. Transmission of a signal within a neuron (from dendrite to axon terminal) is carried by a brief reversal of the resting membrane potential called an action potential.
Learn what nerve impulse is, how it is generated and propagated in neurons, and how it is transmitted across synapses. Find out the factors that affect the speed and mode of nerve impulse conduction, and the stages of polarization, depolarization, repolarization and refractory period.
A nerve impulse is an electrical phenomenon that occurs because of a difference in charge across the plasma membrane of a neuron. Learn how nerve impulses are generated, transmitted and modulated by ions, neurotransmitters and receptors.
