Change in Membrane Potential definitions Flashcards
Change in Membrane Potential definitions
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Resting membrane potential
The state where the inside of a neuron's membrane is negatively charged at -70 millivolts. Graded potential
A type of signal resulting from changes in membrane potential, varying in magnitude. Action potential
A type of signal resulting from changes in membrane potential, characterized by a rapid rise and fall. Polarized
The state of a neuron when the inside of the membrane is negative, typically at -70 millivolts. Depolarization
The process where the inside of the neuron's membrane becomes more positive, moving away from the resting potential. Repolarization
The process where the inside of the neuron's membrane becomes more negative, returning toward the resting potential. Hyperpolarization
The state where the inside of the neuron's membrane becomes more negative than the resting potential. Neural communication
The process by which neurons transmit signals through changes in membrane potential. Membrane potential
The electrical potential difference across a cell's membrane. Negative 70 millivolts
The typical value of the resting membrane potential in neurons. Positive 20 millivolts
An example value used to illustrate depolarization in neurons. Temporary decrease
A description of depolarization where membrane potential becomes less negative. Temporary increase
A description of hyperpolarization where membrane potential becomes more negative. Negative sign
Indicates a negative charge inside the neuron's membrane during resting potential or repolarization. Positive sign
Indicates a positive charge inside the neuron's membrane during depolarization.
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