• Thumbnail for Depolarization
    any kind of anion. The opposite of a depolarization is called a hyperpolarization. Usage of the term "depolarization" in biology differs from its use in...
    20 KB (2,406 words) - 05:35, 9 April 2025
  • Thumbnail for Electrocardiography
    an ECG: The P wave, which represents depolarization of the atria. The QRS complex, which represents depolarization of the ventricles. The T wave, which...
    95 KB (10,362 words) - 16:20, 15 May 2025
  • A depolarizer or depolariser, in electrochemistry, according to an IUPAC definition, is a synonym of electroactive substance, i.e., a substance which...
    4 KB (511 words) - 23:45, 22 March 2025
  • Look up depolarization in Wiktionary, the free dictionary. Depolarization or depolarizer may refer to: Depolarization, a decrease in the absolute value...
    475 bytes (93 words) - 17:45, 27 August 2018
  • perpendicular, would have a depolarization ratio of 1/10 = 0.1, which corresponds to a highly polarized band. The value of the depolarization ratio of a Raman band...
    5 KB (652 words) - 01:57, 12 September 2023
  • liquid crystals. It is also possible to depolarize light using fiber optics. Relatively high degree of depolarization is also achieved by light passing through...
    8 KB (1,018 words) - 14:38, 26 August 2023
  • Thumbnail for Neuromuscular-blocking drug
    receptors. Depolarizing blocking agents: These agents act by depolarizing the sarcolemma of the skeletal muscle fiber. This persistent depolarization makes...
    60 KB (6,872 words) - 07:06, 6 February 2025
  • Thumbnail for Cortical spreading depression
    or spreading depolarization (SD) is a wave of electrophysiological hyperactivity followed by a wave of inhibition. Spreading depolarization describes a...
    14 KB (1,510 words) - 16:48, 9 May 2025
  • will be decreased as opposed to increased. Possibly resulting from the depolarization of the S4 segments and the little time given for inactivation. For long...
    15 KB (1,817 words) - 17:56, 7 May 2024
  • pacemaker phase, or slow diastolic depolarization or phase 4. The duration of this slow diastolic depolarization (pacemaker phase) thus governs the cardiac...
    2 KB (338 words) - 08:01, 8 May 2024
  • currents could be invoked simply by depolarization of the target cell, this phenomenon was termed depolarization-induced suppression of inhibition. While...
    13 KB (1,780 words) - 17:25, 26 July 2024
  • stimulus, there is an efflux of Chloride from the cell, resulting in depolarization of the cell. This causes the GDPs. Once the KCC2 expression is relatively...
    2 KB (253 words) - 13:12, 4 November 2018
  • Thumbnail for PR interval
    wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120...
    4 KB (377 words) - 13:04, 24 September 2024
  • Thumbnail for Refractory period (physiology)
    action potential consists of three phases. Phase one is depolarization. During depolarization, voltage-gated sodium ion channels open, increasing the...
    11 KB (1,304 words) - 11:40, 16 November 2024
  • Thumbnail for Hodgkin cycle
    initial membrane depolarization leads to uncontrolled deflection of the membrane potential to near VNa. The initial depolarization must reach or surpass...
    3 KB (303 words) - 21:34, 5 January 2025
  • Thumbnail for End-plate potential
    End plate potentials (EPPs) are the voltages which cause depolarization of skeletal muscle fibers caused by neurotransmitters binding to the postsynaptic...
    21 KB (2,781 words) - 23:59, 22 February 2025
  • Thumbnail for Summation (neurophysiology)
    of sodium leads to a short term depolarization of the postsynaptic neuron and an EPSP. While a single depolarization of this kind may not have much of...
    19 KB (2,354 words) - 03:09, 20 January 2025
  • Thumbnail for Action potential
    specific cell rapidly rises and falls. This depolarization then causes adjacent locations to similarly depolarize. Action potentials occur in several types...
    149 KB (16,451 words) - 05:32, 8 May 2025
  • that continuously cycle through depolarization- and repolarization phases. However, not every cycle reaches depolarization threshold and thus an action potential...
    9 KB (1,119 words) - 07:47, 17 October 2024
  • Thumbnail for Threshold potential
    larger the stimulus, the greater the depolarization, or attempt to reach threshold. The task of depolarization requires several key steps that rely on...
    22 KB (2,818 words) - 03:44, 15 November 2024
  • Thumbnail for P wave (electrocardiography)
    atrial depolarization, which results in atrial contraction, or atrial systole. The P wave is a summation wave generated by the depolarization front as...
    6 KB (680 words) - 07:50, 31 August 2024
  • Thumbnail for Cardiac conduction system
    ions entering the cell cause the depolarization characteristic of an action potential. Like skeletal muscle, depolarization causes the opening of voltage-gated...
    16 KB (1,843 words) - 08:04, 8 October 2024
  • A quantum depolarizing channel is a model for quantum noise in quantum systems. The d {\displaystyle d} -dimensional depolarizing channel can be viewed...
    8 KB (1,324 words) - 09:18, 24 March 2025
  • Thumbnail for Cardiac pacemaker
    enable them to locally depolarize adjacent cells. Gap junctions allow the passage of positive cations from the depolarization of the pacemaker cell to...
    11 KB (1,401 words) - 21:10, 6 May 2025
  • a Ca2+-mediated depolarization, which causes voltage-gated Na+ channels to open, resulting in action potentials. This depolarization is followed by a...
    7 KB (855 words) - 06:50, 1 November 2024
  • Thumbnail for Kinocilium
    displacement of the hair bundle, resulting in depolarization or hyperpolarization of the hair cell. The depolarization of the hair cells in both instances causes...
    6 KB (762 words) - 16:39, 16 December 2023
  • setting step depolarizations the soma have been used to create DSIs, but it can also be achieved through synaptically induced depolarization of the dendrites...
    22 KB (2,705 words) - 04:12, 7 February 2025
  • Thumbnail for Pacemaker potential
    the cell would go on to fire the next action potential. The rate of depolarization is the slope: the faster voltage increases, the steeper the slopes are...
    9 KB (1,167 words) - 23:37, 23 March 2025
  • Anoxic depolarization is a progressive and uncontrollable depolarization of neurons during stroke or brain ischemia in which there is an inadequate supply...
    21 KB (2,385 words) - 23:22, 6 March 2024
  • whereby losing their net alignment and thus the material become depolarized. This depolarization can be measured if the material is sandwiched between two ohmic...
    2 KB (225 words) - 14:53, 8 May 2024