to hyperpolarize
- verb
- /ˌhaɪpərˈpoʊləˌraɪz/
- Specialized
- When the ion channels open, they allow ions to flow and hyperpolarize the neuronal membrane.
It starts to close and become more hyperpolarized, more negative.
- It starts to close and become more hyperpolarized, more negative.
Examples
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The large hyperpolarizing Cl− current through TMEM16B can rapidly repolarize the membrane and shut down the high-threshold CaV channels.
Academic text (2017) -
Those ion channels are closed at hyperpolarized voltages.
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When the cell is hyperpolarized, it's lower.
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It starts to close and become more hyperpolarized, more negative.
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Strong inhibitory signals can cause a neuron to hyperpolarize, making the interior of the cell more negative.
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Inhibition from neurotransmitters can hyperpolarize the neuron, making it less likely to fire an action potential.
Antonyms
- Specialized
Reduce the difference in electrical charge across a cell membrane or device
How Polarized
Surface Forms
Morphology
hyperpolarize = polarize (transparent) = hyper + polar + ize
The word is clearly built from the intensifying prefix 'hyper-' and the base 'polarize'.
Etymology
Hyperpolarize combines hyper- 'too much' and polarize from polar 'poles', so in biology it means making a cell's inside more negative. That's why a hyperpolarized nerve cell is less likely to send a signal.