Chronaxie definition
Webchronaxie ( ˈkrəʊnæksɪ) or chronaxy n (Physiology) physiol the minimum time required for excitation of a nerve or muscle when the stimulus is double the minimum (threshold) necessary to elicit a basic response. Compare rheobase [C20: from French, from chrono- + Greek axia worth, from axios worthy, of equal weight] WebChronaxie (c) is the Lapicque descriptor of the stimulus pulse duration for a current of twice rheobasic (b) strength, which is the threshold current for an infinitely long-duration stimulus pulse. Lapicque showed that these two quantities (c,b) define the strength-duration curve for current: I = b (1+c/d), where d is the pulse duration.
Chronaxie definition
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Chronaxie is the minimum time required for an electric current double the strength of the rheobase to stimulate a muscle or a neuron. Rheobase is the lowest intensity with indefinite pulse duration which just stimulated muscles or nerves. Chronaxie is dependent on the density of voltage-gated sodium channels in the cell, which affect that cell’s excitability. Chronaxie varies acros… Webalso chro·nax·y (krō′năk′sē, krŏn′ăk′-) n. pl. chro·nax·ies. The minimum interval of time necessary to electrically stimulate a muscle or nerve fiber, using twice the minimum current needed to elicit a threshold response. [French : Greek khronos, time + Greek axiā, value (from axios, worthy; see ag- in Indo-European roots ).]
WebChronaxie (c) is the Lapicque descriptor of the stimulus pulse duration for a current of twice rheobasic (b) strength, which is the threshold current for an infinitely long-duration … Webalso chro·nax·y (krō′năk′sē, krŏn′ăk′-) n. pl. chro·nax·ies. The minimum interval of time necessary to electrically stimulate a muscle or nerve fiber, using twice the minimum current needed to elicit a threshold response. [French : Greek khronos, time + Greek axiā, value (from axios, worthy; see ag- in Indo-European roots ).]
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WebApr 14, 2024 · The chronaxie is the time it takes to activate a fiber when the amplitude is twice the rheobase. For two neurons with similar rheobases, the chronaxie gives a measure of the relative excitability of the neurons: shorter chronaxies apply …
Webchronaxie ( plural chronaxies ) The minimum time over which an electric current must be applied in order to stimulate a muscle fiber or nerve cell. See also [ edit] rheobase French [ edit] Pronunciation [ edit] IPA ( key): /kʁɔ.nak.si/ Noun [ edit] chronaxie f ( plural chronaxies ) chronaxie Further reading [ edit] cynthia investsWebDefinition: The magnitude of current (intensity) just sufficient to cause excitation of a tissue with a very long pulse duration. Chronaxie. Definition: The minimal pulse duration required for threshold activation at twice rheobase intensity. Chronaxie. Which of these terms (Rheobase or Chronaxie?) is a measurement of time? ... billy unsworthWebThe root word “chron” means time and “axie” means axis: chronaxie, then, is measured along the time axis and, thus, is a Duration that gives a response when the nerve is … billy unitWebchro·nax·ie ( krō'nak-sē ), A measurement of excitability of nervous or muscular tissue; the shortest duration of an effective electrical stimulus having a strength equal to twice the minimum strength required for excitation. Synonym (s): chronaxia, chronaxis, chronaxy [G. chronos, time, + axia, value] billy unger moviesWebMuscle denervation in a patient is suggested by signs of muscle weakness, wasting (i.e., atrophy), and fasciculations, in muscles innervated by the nerve or root in question. Clinical evidence of muscle denervation indicates damage to the lower motor neurons innervating that muscle anywhere from the level of the cell body to the peripheral ... billy uomoWebn. pl. chro·nax·ies. The minimum interval of time necessary to electrically stimulate a muscle or nerve fiber, using twice the minimum current needed to elicit a threshold response. [French : Greek khronos, time + Greek axiā, value (from axios, worthy; see ag- in Indo-European roots ).] billy universityWebChronaxie Definition: the minimum time required for excitation of a nerve or muscle when the stimulus is double... Bedeutung, Aussprache, Übersetzungen und Beispiele billy units ikea