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Depolarization is essential to the function of many cells, communication between cells, and the overall physiology of an organism. Action potential in a neuron, showing depolarization, in which the cell's internal charge becomes less negative (more positive), and repolarization, where the internal charge returns to a more negative value.
A depolarizer or depolariser is an optical device used to scramble the polarization of light.An ideal depolarizer would output randomly polarized light whatever its input, but all practical depolarizers produce pseudo-random output polarization.
A typical action potential begins at the axon hillock [41] with a sufficiently strong depolarization, e.g., a stimulus that increases V m. This depolarization is often caused by the injection of extra sodium cations into the cell; these cations can come from a wide variety of sources, such as chemical synapses, sensory neurons or pacemaker ...
A depolarizer or depolariser, in electrochemistry, according to an IUPAC definition, [1] [2] is a synonym of electroactive substance, i.e., a substance which changes its oxidation state, or partakes in a formation or breaking of chemical bonds, in a charge-transfer step of an electrochemical reaction.
Early afterdepolarizations (EADs) occur with abnormal depolarization during phase 2 or phase 3, and are caused by an increase in the frequency of abortive action potentials before normal repolarization is completed. [1]
This reflects a common misunderstanding: that depolarization is at odds with activism. But one can do both — and I’d argue aiming to do both actually makes one’s activism more persuasive and ...
Teens aren't just sneaking quick glances at their phones during class.They're spending an average of 1.5 hours on them every school day, with 25% of students logging on for more than two hours ...
These neurotransmitters bind to receptors located on the postsynaptic membrane of the lower neuron, and, in the case of an excitatory synapse, may lead to a depolarization of the postsynaptic cell. An excitatory synapse is a synapse in which an action potential in a presynaptic neuron increases the probability of an action potential occurring ...