Threshold potential

{
  "id": "MLC-T-CHM-012032",
  "term": "Threshold potential",
  "field": "Chemistry",
  "definition": "The critical level of membrane potential that must be reached in an excitable cell, such as a neuron or muscle cell, to trigger an action potential. When the membrane potential depolarizes to this specific value, voltage-gated sodium channels open rapidly, leading to a regenerative influx of sodium ions. This rapid depolarization initiates the nerve impulse or muscle contraction.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "action potential",
    "depolarization",
    "excitable cell",
    "hyperpolarization"
  ],
  "references": [
    "PAC, 2015, 87, 841. 'IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)' on page 912 (https://doi.org/10.1515/pac-2015-0103)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/threshold-potential/"
}