Related Experiment Video
Updated: May 13, 2026

08:16
Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis
Published on: March 4, 2014
Fasciculation potentials: a diagnostic biomarker of early ALS?
Journal of Neurology, Neurosurgery, and Psychiatry
|March 5, 2013
Abstract
No abstract available in PubMed .
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Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
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Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...