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Membrane Potentials, Synaptic Responses, Neuronal Circuitry, Neuromodulation and Muscle Histology Using the Crayfish: Student Laboratory Exercises
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Purified ciguatoxin-induced modifications in excitability of myelinated nerve fibre

E Benoit1, A M Legrand

  • 1Laboratoire de Physiologie cellulaire, URA CNRS 1121, Université Paris-Sud, Orsay, France.

Bulletin De La Societe De Pathologie Exotique (1990)
|January 1, 1992
PubMed

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Action Potentials01:41

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Overview
Action Potential01:14

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Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
Action Potential01:14

Action Potential

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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