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StudyStack Set 1

Physiology

TermDefinition
Nerve Signal An electrical impulse transmitted along nerve fibers to convey information.
Action Potential A rapid change in the electrical potential across a neuron's membrane that travels down the axon.
Ligand A molecule that binds to a receptor to initiate a biological response.
Ion Channel A protein structure that allows ions to pass through the cell membrane, often crucial for nerve signaling.
Ligand-Gated Ion Channel A type of ion channel that opens in response to the binding of a specific molecule (ligand).
Resting Membrane Potential The stable, negative charge inside a cell when it is not actively sending a signal.
Depolarization The process by which the inside of a cell becomes less negative, often leading to the generation of an action potential.
Repolarization The return of a cell's membrane potential to a more negative value after depolarization.
Threshold Potential The critical level to which a membrane potential must be depolarized in order to trigger an action potential.
Excitatory Postsynaptic Potential (EPSP) A temporary depolarization of the postsynaptic membrane potential caused by the influx of positive ions.
Created by: Blessingeseine
 

 



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