Search results
- 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.
Powered by Oxford Languages
Jun 25, 2024 · The meaning of NERVE IMPULSE is the progressive physicochemical change in the membrane of a nerve fiber that follows stimulation and serves to transmit a record of sensation from a receptor or an instruction to act to an effector —called also nervous impulse.
People also ask
What is a nerve impulse?
What is nerve impulse conduction?
How does a nerve impulse start?
What happens when a nerve impulse enters a cell?
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 · A nerve impulse is the relaying of a coded signal from a nerve cell to an effector (a muscle cell, a gland cell or another nerve cell) in response to a stimulus. It is the means by which a nerve cell communicates with another cell.
A nerve impulse causes Na + to enter the cell, resulting in (b) depolarization. At the peak action potential, K + channels open and the cell becomes (c) hyperpolarized.
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.
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.
Oct 17, 2019 · Nerve impulses have to be at the heart of consciousness, inasmuch as impulses contain the brain’s representation of information and create the synaptic field potentials.
