Action potential - Wikipedia, the free encyclopedia
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An action potential (or nerve impulse ) is a transient alteration of the transmembrane voltage (or membrane potential) across an excitable membrane in an excitable cell (such as a neuron or myocyt...
en.wikipedia.org/wiki/Action_potential
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Repolarization
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Depolarization - Wikipedia, the free encyclopedia
In biology, depolarization is a change in a cell's membrane potential, making it more positive, or less negative. In neurons and some other cells, a large enough depolarization may result in an acti...
en.wikipedia.org/wiki/Depolarization
Gyngell, M., Back, T., & Hoehn-Berlage, M. (1994). Transient cell depolarization after permanent middle cerebral occlusion: and observation by diffuse-weighted MRI and localized 1H-MRS. ; Home/Search Document Not in Database Summary Related Articles Check...
citeseer.ist.psu.edu/context/141911/0
PC12 cells respond to a variety of external stimuli such as growth factors, neurotransmitters, and membrane depolarization by activating the Ras/mitogen-activated protein kinase pathway. ... The Medscape Journal ... Allergy & Clinical Immunology...
www.medscape.com/medline/abstract/9312072
We have previously reported that exposure of mammalian cells to tobacco smoke induces the expression of stress proteins, as well as apoptosis (programmed cell death). ... Tobacco smoke induced mitochondrial depolarization at 3 h, and apoptosis (or necrosis for higher concentrations) after 16 h. Apoptosis was assessed by both...
www.medscape.com/medline/abstract/10731097
The sudden complete depolarization of the membrane opens up more of the voltage-gated sodium channels in adjacent portions of the membrane. In this way, a wave of depolarization sweeps along the cell. This is the action potential (In neurons, the action potential is also called the nerve impulse.)
users.rcn.com/jkimball.ma.ultranet/BiologyPages/E/Excit... users.rcn.com/jkimball.ma.ultranet/BiologyPages/E/ExcitableCells.html
Many cells in the body have the ability to undergo a transient depolarization and repolarization that is either triggered by external mechanisms (e.g., motor nerve stimulation of skeletal muscle or cell-to-cell depolarization in the heart) or by intracellular, spontaneous mechanisms (e.g., cardiac pacemaker cells).
www.cvphysiology.com/Arrhythmias/A010.htm
Cell depolarization in hemorrhagic shock has been attributed to hypoperfusion, but the mechanism remains unclear. Suspensions of single cell lines loaded ...
www.ncbi.nlm.nih.gov/pmc/articles/PMC1358573/
The popularity of DA-cell depolarization block theory stands on the fact that it provides a potential mechanism to account for the delayed antipsychotic ...
linkinghub.elsevier.com/retrieve/pii/S0006899397013164
1Programme in Cell Biology, The Hospital for Sick Children; and 2Department of Physiology, University of Toronto, Toronto, Ontario, Canada ... Muscle contraction is elicited by membrane depolarization followed by a rise in cytosolic Ca2+ and actomyosin activation, drawing on ATP stores. It is unknown whether one or more...
ajpendo.physiology.org/cgi/content/abstract/290/6/E1276
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Repolarization
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