What does Hyperpolarization mean?
Definitions for Hyperpolarization
hy·per·po·lar·iza·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word Hyperpolarization.
Wiktionary
hyperpolarizationnoun
The act or process of hyperpolarizing.
Wikidata
Hyperpolarization
Hyperpolarization is a change in a cell's membrane potential that makes it more negative. It is the opposite of a depolarization. It inhibits action potentials by increasing the stimulus required to move the membrane potential to the action potential threshold. Hyperpolarization is often caused by efflux of K+ through K+ channels, or influx of Cl– through Cl– channels. On the other hand, influx of cations, e.g. Na+ through Na+ channels or Ca2+ through Ca2+ channels, inhibits hyperpolarization. If a cell has Na+ or Ca2+ currents at rest, then inhibition of those currents will also result in a hyperpolarization. Because hyperpolarization is a change in membrane voltage, electrophysiologists measure it using current clamp techniques. In voltage clamp, the membrane currents giving rise to hyperpolarization are either an increase in outward current, or a decrease in inward current. In neurons, the cell enters a state of hyperpolarization immediately following the generation of an action potential. While hyperpolarized, the neuron is in a refractory period that lasts roughly 2 milliseconds, during which the neuron is unable to generate subsequent action potentials. Sodium-potassium ATPases redistribute K+ and Na+ ions until the membrane potential is back to its resting potential of around –70 millivolts, at which point the neuron is once again ready to transmit another action potential.
Numerology
Chaldean Numerology
The numerical value of Hyperpolarization in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of Hyperpolarization in Pythagorean Numerology is: 3
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"Hyperpolarization." Definitions.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.definitions.net/definition/Hyperpolarization>.
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