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chronaxie
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Chronaxie
Chronaxie varies across different types of tissue: fast-twitch muscles have a lower chronaxie, slow-twitch muscles have a higher one. A reduction in chronaxie occurs during reinnervation. The published values for chronaxie have a wide range.
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chronaxy
chronaxie, chronaxy Phys. (ˈkrəʊnəksɪ) Also chronaxia. [a. F. chronaxie (L. Lapicque 1909, in Comptes Rendus de la Soc. de Biol. LXVII. 283), f. Gr. χρόν-ος time + ἀξία value.] The minimum time required by a constant electric current of twice the threshold intensity to excite a muscle or nerve fibre...
Oxford English Dictionary
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Rheobase
The x-intercept of the Weiss equation is equal to b x c, or rheobase times chronaxie. See also
Chronaxie
References
Neurophysiology
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Marcelle Lapicque
Marcelle de Heredia Lapicque (1873 – 1960) was a French neurophysiologist known for her research on nerve impulses (chronaxie) and the effects of poisons , especially strychnine, on chronaxie.
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rheo-
rheo- (ˈriːə, riːˈɒ) also reo-, used as comb. form of Gr. ῥέος stream, current, chiefly in names of electrical apparatus: ˈrheobase Physiol. [ad. F. rhéobase (L. Lapicque 1909, in Compt. Rend. Soc. de Biol. LXVII. 283), f. base base n.1], the minimum electrical stimulus which, applied continuously, ...
Oxford English Dictionary
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Louis Lapicque
Works
Notice on titles and scientific works of Louis Lapicque (1908)
Excitability function of time, chronaxie, its meaning and its measure (1926)
Nervous )
Quantitative research on nervous electrical excitation treated like a polarization (1907)
Consciousness as a cellular function (1952)
See also
Chronaxie
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Janina Hurynowicz
She was the author of many works on Chronaxie and the influence of insulin on the autonomic nervous system and became a professor at the Nicolaus Copernicus Über die normale und pathologische Chronaxie der vasomotorischen Nerven. Pogoń.
Hurynowicz, J. (1947).
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Épinal
Durkheim (1858–1917), founder of sociology
Louis Lapicque (1866–1952), physiologist, specialist of the nervous system and known for his discovery of the chronaxie
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Murshidabad Medical College and Hospital
Revoir - Annual Convocation Ceremony (Name given by batch 2014-20)
Saraswati Puja
Bienvenue - Freshers' Welcome Party (Name given by batch 2k14-20 )
Chronaxie
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电外科
刺激阈值在低频下变化不大(流变碱恒定水平),当脉冲(或周期)的持续时间下降到特征最小值(chronaxie)以下时,阈值开始增加。通常,神经细胞在0.1-10ms范围内,因此对电刺激的敏感性(刺激阈值的倒数)随着频率在kHz及以上范围内增加而降低。(请注意,交流电流的频率是单个周期持续时间的倒数)。
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Electrosurgery
However, the threshold starts increasing with decreasing duration of a pulse (or a cycle) when it drops below a characteristic minimum (so called chronaxie Typically, chronaxie of neural cells is in the range of 0.1–10 ms, so the sensitivity to electrical stimulation (inverse of the stimulation threshold)
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Electrical injury
Another factor is that cardiac tissue has a chronaxie (response time) of about 3 milliseconds, so electricity at frequencies of higher than about 333 Hz
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Electromyography
In September 2019 Facebook bought a startup called CTRL-labs that was working on EMG
See also
Chronaxie
Compound muscle action potential
Electrical
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Action potential
See also
Anode break excitation
Bioelectricity
Biological neuron model
Bursting
Central pattern generator
Chronaxie
Frog battery
Law of specific
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