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دافع عصبى - ترجمة إلى إنجليزي
دافع عصبى
nerve impulse
nerve impulse
![Approximate plot of a typical action potential shows its various phases as the action potential passes a point on a [[cell membrane]]. The membrane potential starts out at approximately −70 mV at time zero. A stimulus is applied at time = 1 ms, which raises the membrane potential above −55 mV (the threshold potential). After the stimulus is applied, the membrane potential rapidly rises to a peak potential of +40 mV at time = 2 ms. Just as quickly, the potential then drops and overshoots to −90 mV at time = 3 ms, and finally the resting potential of −70 mV is reestablished at time = 5 ms.](https://commons.wikimedia.org/wiki/Special:FilePath/Action potential.svg?width=200 "Approximate plot of a typical action potential shows its various phases as the action potential passes a point on a [[cell membrane]]. The membrane potential starts out at approximately −70 mV at time zero. A stimulus is applied at time = 1 ms, which raises the membrane potential above −55 mV (the threshold potential). After the stimulus is applied, the membrane potential rapidly rises to a peak potential of +40 mV at time = 2 ms. Just as quickly, the potential then drops and overshoots to −90 mV at time = 3 ms, and finally the resting potential of −70 mV is reestablished at time = 5 ms.")
![Cable theory's simplified view of a neuronal fiber. The connected [[RC circuit]]s correspond to adjacent segments of a passive [[neurite]]. The extracellular resistances ''r<sub>e</sub>'' (the counterparts of the intracellular resistances ''r<sub>i</sub>'') are not shown, since they are usually negligibly small; the extracellular medium may be assumed to have the same voltage everywhere.](https://commons.wikimedia.org/wiki/Special:FilePath/Cable theory Neuron RC circuit v3.svg?width=200 "Cable theory's simplified view of a neuronal fiber. The connected [[RC circuit]]s correspond to adjacent segments of a passive [[neurite]]. The extracellular resistances ''r<sub>e</sub>'' (the counterparts of the intracellular resistances ''r<sub>i</sub>'') are not shown, since they are usually negligibly small; the extracellular medium may be assumed to have the same voltage everywhere.")
![inactivated]] while the Na<sup>+</sup> and K<sup>+</sup> ions return to their resting state distributions across the membrane (1), and the neuron is ready to repeat the process for the next action potential.](https://commons.wikimedia.org/wiki/Special:FilePath/Membrane Permeability of a Neuron During an Action Potential.svg?width=200 "inactivated]] while the Na<sup>+</sup> and K<sup>+</sup> ions return to their resting state distributions across the membrane (1), and the neuron is ready to repeat the process for the next action potential.")
PROCESS BY WHICH NEURONS COMMUNICATE WITH EACH OTHER BY CHANGES IN THEIR MEMBRANE POTENTIALS.
Nerve impulse; Action Potential; Action potentials; Nerve impulses; Nerve potential; Nerve signal; Spike train; Activation potential; Firing rate (cells); Neural firing; Neuronal firing; Nerve conduction; Firing rate (neurons); Neural firing rate; Spike (neuroscience)
دافع عصبى
حافز
الدافع او الباعث هو عملية داخلية تعمل على توجيه السلوك واثارته وتحافظ على استمراريته
دوافع; الدوافع; الحفز الإنساني; أبحاث الدوافع; Motivation; حافز; دوافع الكبار
instigation
