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Nov 3, 2023 · An action potential is caused by either threshold or suprathreshold stimuli upon a neuron. It consists of three phases: depolarization, overshoot, and repolarization. An action potential propagates along the cell membrane of an axon until it reaches the terminal button.
- Medical Content Validation
- 11 min
Jan 1, 2009 · Action potential propagation has been studied most extensively in the peripheral nervous system because these fibers are easily accessible, often large and myelinated, and are more amenable to experimental manipulation compared to CNS nerve fibers.
- Geraldine J. Kress, Steven Mennerick
- 10.1016/j.neuroscience.2008.03.021
- 2009
- 2009/01/01
Jul 6, 2016 · We repeated action potential recordings from basket cells in Kcna1 V408A/+ mice, which harbour a missense mutation that underlies EA1 (ref. 18), and their wild-type littermates (Kcna1 +/+)....
- Rahima Begum, Yamina Bakiri, Kirill E. Volynski, Dimitri M. Kullmann
- 2016
An action potential occurs when the membrane potential of a specific cell rapidly rises and falls. This depolarization then causes adjacent locations to similarly depolarize. Action potentials occur in several types of excitable cells, which include animal cells like neurons and muscle cells, as well as some plant cells.
Jul 15, 2022 · Several prominent cognitive theories propose that in situations affording more than one action strategy, the brain prepares multiple competing movements prior to selecting one. Here the authors...
Jul 30, 2022 · Graph of Action Potential Plotting voltage measured across the cell membrane against time, the action potential begins with depolarization, followed by repolarization, which goes past the resting potential into hyperpolarization, and finally the membrane returns to rest.
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Pharmacological experiments suggest that the giant fiber action potential depends on inward currents carried by Na+ and outward currents carried by K+. Abnormal action potentials are seen in Shaker (Sh) mutant Drosophila. This study compares the effects of six Sh alleles.
