Concept information
Preferred term
Membrane Potentials
Type
-
mesh:Descriptor
Definition
- The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).
Broader concept
Narrower concepts
Entry terms
- Delta Psi
- Transmembrane Electrical Potential Difference
- Transmembrane Potential Difference
- Transmembrane Potentials
Allowable Qualifier(s)
In other languages
-
French
-
Différence de potentiel électrique transmembranaire
-
Différence de potentiel transmembranaire
-
Potentiels membranaires
-
Potentiels transmembranaires
URI
http://data.loterre.fr/ark:/67375/JVR-CPP9XSTX-T
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