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Reversal potential

Index Reversal potential

In a biological membrane, the reversal potential (also known as the Nernst potential) of an ion is the membrane potential at which there is no net (overall) flow of that particular ion from one side of the membrane to the other. [1]

38 relations: Afterhyperpolarization, AMPA, AMPA receptor, Anion-conducting channelrhodopsin, ATP-sensitive potassium channel, Cardiac action potential, Channelrhodopsin, Chloride potassium symporter, Driving Force, EAST syndrome, Electrochemical gradient, Excitatory synapse, GABAA receptor, GABAA-rho receptor, GABAB receptor, GHK flux equation, Goldman equation, Hodgkin–Huxley model, Hyperkalemia, Index of biophysics articles, Inward-rectifier potassium channel, Juvenile myoclonic epilepsy, LTP induction, Membrane potential, Membrane transport, Molecular neuroscience, Myotonia congenita, Na-K-Cl cotransporter, NMDA receptor, Ophanin, Resting potential, Solid oxide fuel cell, Spike-and-wave, Squid giant synapse, Tertiapin, Underpotential deposition, Ventricular action potential, Walther Nernst.

Afterhyperpolarization

Afterhyperpolarization, or AHP, is the hyperpolarizing phase of a neuron's action potential where the cell's membrane potential falls below the normal resting potential.

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AMPA

AMPA (α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) is a compound that is a specific agonist for the AMPA receptor, where it mimics the effects of the neurotransmitter glutamate.

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AMPA receptor

The α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (also known as AMPA receptor, AMPAR, or quisqualate receptor) is an ionotropic transmembrane receptor for glutamate that mediates fast synaptic transmission in the central nervous system (CNS).

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Anion-conducting channelrhodopsin

Anion-conducting channelrhodopsins are light-gated ion channels that open in response to light and let negatively charged ions (such as chloride) enter a cell.

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ATP-sensitive potassium channel

An ATP-sensitive potassium channel (or KATP channel) is a type of potassium channel that is gated by intracellular nucleotides, ATP and ADP.

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Cardiac action potential

The cardiac action potential is a brief change in voltage (membrane potential) across the cell membrane of heart cells.

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Channelrhodopsin

Channelrhodopsins are a subfamily of retinylidene proteins (rhodopsins) that function as light-gated ion channels.

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Chloride potassium symporter

The potassium chloride symporter is a membrane transport protein that is present in the S3-segment of the renal proximal tubule Page 780 and in the neuron.

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Driving Force

Driving Force may refer to.

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EAST syndrome

EAST syndrome is a syndrome consisting of '''e'''pilepsy, '''a'''taxia (a movement disorder), '''s'''ensorineural deafness (deafness because of problems with the hearing nerve) and salt-wasting renal '''t'''ubulopathy (salt loss caused by kidney problems).

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Electrochemical gradient

An electrochemical gradient is a gradient of electrochemical potential, usually for an ion that can move across a membrane.

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Excitatory synapse

An excitatory synapse is a synapse in which an action potential in a presynaptic neuron increases the probability of an action potential occurring in a postsynaptic cell.

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GABAA receptor

The GABAA receptor (GABAAR) is an ionotropic receptor and ligand-gated ion channel.

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GABAA-rho receptor

The GABAA-rho receptor (previously known as the GABAC receptor) is a subclass of GABAA receptors composed entirely of rho (ρ) subunits.

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GABAB receptor

GABAB receptors (GABABR) are metabotropic transmembrane receptors for gamma-aminobutyric acid (GABA) that are linked via G-proteins to potassium channels.

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GHK flux equation

The Goldman–Hodgkin–Katz flux equation (or GHK flux equation or GHK current density equation) describes the ionic flux across a cell membrane as a function of the transmembrane potential and the concentrations of the ion inside and outside of the cell.

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Goldman equation

The Goldman–Hodgkin–Katz voltage equation, more commonly known as the Goldman equation, is used in cell membrane physiology to determine the reversal potential across a cell's membrane, taking into account all of the ions that are permeant through that membrane.

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Hodgkin–Huxley model

The Hodgkin–Huxley model, or conductance-based model, is a mathematical model that describes how action potentials in neurons are initiated and propagated.

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Hyperkalemia

Hyperkalemia, also spelled hyperkalaemia, is an elevated level of potassium (K+) in the blood serum.

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Index of biophysics articles

This is a list of articles on biophysics.

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Inward-rectifier potassium channel

Inward-rectifier potassium channels (Kir, IRK) are a specific subset of potassium channels.

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Juvenile myoclonic epilepsy

Juvenile myoclonic epilepsy (JME), also known as Janz syndrome, is a fairly common form of idiopathic generalized epilepsy, representing 5-10% of all epilepsy cases.

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LTP induction

The induction of NMDA receptor-dependent long-term potentiation (LTP) in chemical synapses in the brain occurs via a fairly straightforward mechanism.

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Membrane potential

The term "membrane potential" may refer to one of three kinds of membrane potential.

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Membrane transport

In cellular biology, membrane transport refers to the collection of mechanisms that regulate the passage of solutes such as ions and small molecules through biological membranes, which are lipid bilayers that contain proteins embedded in them.

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Molecular neuroscience

Molecular neuroscience is a branch of neuroscience that observes concepts in molecular biology applied to the nervous systems of animals.

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Myotonia congenita

Congenital myotonia, also called myotonia congenita, is a congenital neuromuscular channelopathy that affects skeletal muscles (muscles used for movement).

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Na-K-Cl cotransporter

The Na-K-Cl cotransporter (NKCC) is a protein that aids in the active transport of sodium, potassium, and chloride into cells.

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NMDA receptor

The N-methyl-D-aspartate receptor (also known as the NMDA receptor or NMDAR), is a glutamate receptor and ion channel protein found in nerve cells.

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Ophanin

Ophanin is a toxin found in the venom of the King Cobra (Ophiophagus hannah), which lives throughout South East Asia.

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Resting potential

The relatively static membrane potential of quiescent cells is called the resting membrane potential (or resting voltage), as opposed to the specific dynamic electrochemical phenomena called action potential and graded membrane potential.

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Solid oxide fuel cell

A solid oxide fuel cell (or SOFC) is an electrochemical conversion device that produces electricity directly from oxidizing a fuel.

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Spike-and-wave

Spike-and-wave is a pattern of the electroencephalogram (EEG) typically observed during epileptic seizures.

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Squid giant synapse

The squid giant synapse is a chemical synapse found in squid.

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Tertiapin

Tertiapin is a 21-amino acid peptide isolated from venom of the European honey bee (Apis mellifera).

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Underpotential deposition

Underpotential deposition (UPD), in electrochemistry, is a phenomenon of electrodeposition of a species (typically reduction of a metal cation to a solid metal) at a potential less negative than the equilibrium (Nernst) potential for the reduction of this metal.

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Ventricular action potential

In electrocardiography, the ventricular cardiomyocyte membrane potential is about −90 mV at rest, which is close to the potassium reversal potential.

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Walther Nernst

Walther Hermann Nernst, (25 June 1864 – 18 November 1941) was a German chemist who is known for his work in thermodynamics; his formulation of the Nernst heat theorem helped pave the way for the third law of thermodynamics, for which he won the 1920 Nobel Prize in Chemistry.

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Redirects here:

Electrochemical equilibrium potential, Equilibrium potential, Nernst potential.

References

[1] https://en.wikipedia.org/wiki/Reversal_potential

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