Webaction potential, the brief (about one-thousandth of a second) reversal of electric polarization of the membrane of a nerve cell (neuron) or muscle cell. In the neuron an action potential produces the nerve impulse, and in the muscle cell it produces the contraction required for all movement. Sometimes called a propagated potential because … WebWhen an impulse is propagated along a neuron? The transmission of a nerve impulse along a neuron from one end to the other occurs as a result of electrical changes across the membrane of the neuron.The membrane of an unstimulated neuron is polarized—that is, there is a difference in electrical charge between the outside and inside of the membrane.

11.4: Nerve Impulses - Biology LibreTexts

Weba neural impulse; a brief electrical charge that travels down an axon. the action potential is generated by the movement of positively charged atoms in and out of channels in the axon's membrane. threshold stimulus. A stimulus strong enough to create one action potential in a neuron. absolute refractory period. easter island statues damage

Nerve impulse - Simple English Wikipedia, the free encyclopedia

WebWhen you want your hand to move, your brain sends signals through your nerves to your hand telling the muscles to contract. But your nerves don’t just say “hand, move.”. … Webpolarized. state of unstimulated neurons membrane. repolarization. period (event) during which potassium ions move out of the axon. action potential. also called the nerve impulse. absolute refractory period. period when a neuron cannot be restimulated because its sodium gates are open and AP is being generated. WebNerve cells are also called neurons. They are adapted to carry electrical impulses from one place to another. They feature: an axon – a single nerve fibre that carries nerve impulses away from a ... easter island statues have bodies too