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Glite Dictionary
⚡ Loss of charge 🤝 Less division
depolarization

depolarization

1 8.1
Loss of the electrical difference across a cell membrane when the inside becomes less negative
  • noun
  • /ˌdiːˌpoʊlərɪˈzeɪʃən/
  • Specialized
translation icon : despolarización
  • The P-wave corresponds to the electrical activation of atrial depolarization.

Bill, David, I was struck by the plasticity result you showed that you can in essence create a new super threshold place cell by a single depolarization.

Examples

  • In common with other muscles, cardiac muscle contracts in response to electrical changes known as depolarization, which are then detected by the electrodes attached to the body.

    Academic text (2012)

  • The simplest example is non-linear summation of depolarization caused by coincident synaptic inputs (Canepari et al., 2007; Costanzo et al., 1999; Wolf et al., 1998).

    Academic text (2017)

  • Most of them are in fact silent cells, which in this case show no ramp of depolarization, no firing anywhere.

  • I'm monitoring the depolarization... of cardiac myocytes.

    Tadpole (2002)

  • Their endings respond to the depolarization created in the receptor cells, which are these hair cells.

  • Both result in local hyperkalemia, neuronal depolarization, and intense pain.

    Academic text (2015)

  • The QRS complex shows the ventricular depolarization, which causes a contraction of the ventricles.

    Academic text (2017)

  • Such phenomena would contribute to an increased incidence of early after depolarization, a powerful substrate to precipitate cardiac arrhythmias.

    Academic text (2016)

  • For example, a transient NMDAR-dependent calcium elevation may cause more lasting changes in the composition of the membrane receptors, resulting in stronger depolarization following the same level of neurotransmitter.

    Academic text (2017)

  • Cardiac depolarization is essential for the heart to beat effectively and maintain proper circulation.

Antonyms

polarization
  • Specialized
2 6.8

A material that has one side positive and the other negative

How Polarized

hyperpolarization
  • Specialized
9.3
resting potential
  • Specialized
7.0
depolarization
  • Specialized
1 8.1

Surface Forms

depolarization singular
depolarizations plural

Morphology

depolarization = depolarize (semi-transparent) = de + polar + ize + ation

This is a standard process noun formed directly from the verb 'depolarize'.

Etymology

Depolarization comes from de- meaning 'remove' and polar meaning 'pole' or 'opposite ends', like the two ends of a battery. In cells it describes when the usual 'difference in electric charge' across the membrane is reduced or reversed, so the cell loses its polarity.