Action potential
The all-or-nothing electrical spike a neuron fires to send information down its length.
At a glance
Key signals
13% cross fields · reaches 2 more
- Neuroscience
- Biophysics
- Neuroinformatics
- Explanation
- Examples
- Misconception
- Sourced relations
- Attribution
Dependencies
What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.
Foundations · builds on
Action potentialrequiresIon channelEstablished
Action potential requires Ion channel.
Mechanism: Voltage-gated channels open in sequence to generate the potential's rising and falling phases.
Membrane transportenablesAction potentialEstablished
Ion gates make the spike.
Mechanism: Ion channels moving charge across the membrane create the neuron's action potential.
MyelinationenablesAction potentialEstablished
Insulation speeds spikes.
Mechanism: Myelin lets an action potential jump between gaps, racing down the axon far faster.
System context
Action potentialis aMembrane potentialEstablished
Action potential is a kind of Membrane potential.
Action potentialis part ofNeuronEstablished
The neuron's signal.
Mechanism: An action potential is the electrical spike a neuron sends along its axon.
Structural role & consequence
Interpreted from the current atlas graph — what the connections mean, not just how many there are.
Currently dark in the atlas: no verified source · no key date stored · 8 of 8 of its relations lack claim-level evidence.
atlas representation · Describes the current Thinking OS representation, not the state of the world.
Builds on 3 foundations (requires / depends-on / derived-from / emerges-from).
structural · Structural graph analysis — not a claim of importance, causation or history.
Structural neighbourhood: 8 → 27 → 73 concepts reachable within 3 hops.
structural · Structural reach — being reachable is not the same as being understood.
cross-field
7 within-field, 1 cross-field
Strengths & constraints
Constraints
- Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
- No dated history stored — the atlas records no key date for this concept. atlas representation
Conditions
- Its dependency reading rests on 3 foundation relations. structural
- Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural
Dependency radial
What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.
Seen through each discipline
How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.
Through this lens it connects to Neuron and Myelination.
Through this lens it connects to Ion channel and Membrane potential.
Through this lens it connects to Spiking neural network, Electrophysiology recording and Hodgkin–Huxley model.
Related ideas to explore
Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.
This idea also appears in…
The same structure shows up in other disciplines. These are real recurrences drawn from the graph — a starting point for asking “what carries over, and what changes?”
Concepts
- Membrane transportCell Biology
crosses a discipline boundary
- Connects 8 other ideas across 3 disciplines.
- A cross-disciplinary bridge — its connections reach into 2 other fields.
- Most of its connections are of the “Explains & models” kind.
Derived from the graph’s real structure — observations, not a score.
Sources
No primary source is attached to this concept yet. In a real deployment this would be required before publication.