Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Action potential

An action potential (also known as a nerve impulse or "spike" when in a neuron) is a series of quick changes in voltage across a cell membrane. An action potential occurs when the membrane potential of a specific cell rapidly rises and falls. This "depolarization" (physically, a reversal of the polarization of the membrane) then causes adjacent locations…

History, Biophysical basis & Neurotransmission

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Action potential. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Biophysical basis

Neurotransmission

Phases

Propagation

Termination

Other cell types

Taxonomic distribution and evolutionary advantages

Experimental methods

Neurotoxins

History

Quantitative models

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Action potential

Nodes291
Edges290
Triples305
Avg. degree1.99
Density0.006873
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Action potential

Top relations

related to history · 26
Action potential → Alessandro Volta, Bois-Reymond, Bois-Reymond's, Cajal, Camillo Golgi, Carlo Matteucci, Emil, For, Galvani's, German, Golgi, Helmholtz, Hermann, In, Luigi Galvani, Matteucci's, Nobel Prize, Physiology, Progress, Ramón
related to External links · 25
Action potential → AP, Archived, ArizonaA, Biology, Blackwell PublishingAction, Blackwell PublishingGeneration, Electrotonic, GH Orians, Goldman, HC Heller, Ionic, ISBN, July, Khan Academy, Life, Neuroscience Online, New York, Sadava, SourceForge, The Science
related to Anatomy of a neuron · 22
Action potential → Although, At, Dendrites, Emerging, However, Immediately, In, LTP, Multiple, Myelin, Neurons, Ranvier, Schwann, Several, The, Their, There, These, They, This
related to Quantitative models · 16
Action potential → Although, Bonhoeffer, FitzHugh, Hodgkin, However, Huxley, Lecar, Mathematical, More, Morris, Nagumo, ODEs, Pacinian, Pol, The, Van
related to Dynamics · 14
Action potential → Action, Due, Electrical, If, More, Neurotransmission, Rectifying, Some, The, Their, These, This, Typically, Whether
related to Maturation of the electrical properties of the action potential · 14
Action potential → As, During, First, How, Immature, In, Neurons, One, P0, P30, Second, The, There, Xenopus
related to Phases · 14
Action potential → At, During, Em, Finally, First, For, Goldman, Hence, Second, Subsequent, The, This, Thus, Vm
related to Process in a typical neuron · 14
Action potential → Action, All, As, At, Each, Exceptions, However, In, Many, Recent, Synaptic, The, This, When
related to Propagation · 14
Action potential → A-type, After, Alan Lloyd Hodgkin, Although, At, However, If, In, On, Once, Some, The, There, This
has method · 12
Action potential → Alan Lloyd Hodgkin, Andrew Fielding Huxley, Doryteuthis, However, It, John Carew Eccles, Loligo, Medicine, Nobel Prize, Physiology, The, These

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

action potential channels membrane potentials sodium voltage cells cell axon neurons potassium ions ion neuron types open calcium conduction current

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Action potentialis afirst step in the chain of events leading to contraction0.90text
pancreatic beta cellsinstance ofCertain endocrine cells0.80text
and certain cells of the anterior pituitary gland are also excitable cells.In neuronsinstance ofCertain endocrine cells0.80text
action potentials play a central role in cellinstance ofCertain endocrine cells0.80text
receptor potentialsinstance ofThis all-or-nothing property of the action potential sets it apart from graded potentials0.80text
electrotonic potentialsinstance ofThis all-or-nothing property of the action potential sets it apart from graded potentials0.80text
subthreshold membrane potential oscillationsinstance ofThis all-or-nothing property of the action potential sets it apart from graded potentials0.80text
and synaptic potentialsinstance ofThis all-or-nothing property of the action potential sets it apart from graded potentials0.80text
which scale with the magnitude of the stimulusinstance ofThis all-or-nothing property of the action potential sets it apart from graded potentials0.80text
pressureinstance ofan external signal0.80text
temperatureinstance ofan external signal0.80text
lightinstance ofan external signal0.80text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.