- A rapid self-propagating change in the electrical potential across a neuron, gland, or muscle fiber membrane primarily due to a sudden influx of sodium ions followed by an efflux of potassium ions.
Definition from: CRISP Thesaurus via Unified Medical Language System at the National Library of Medicine
- Abrupt changes in the membrane potential that sweep along the cell membrane of excitable cells in response to excitation stimuli.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
See also Understanding Medical Terminology.