Chronaxie definition
WebLa chronaxie, dans le cadre de la description mathématique du fonctionnement du système nerveux, est la durée nécessaire pour stimuler une fibre musculaire, ou une cellule … WebChronaxie definition: The minimum time necessary to excite a tissue, such as that of muscle or nerve cells, with an electric current of twice the rheobase.
Chronaxie definition
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WebChronaxie Definition: the minimum time required for excitation of a nerve or muscle when the stimulus is double... Bedeutung, Aussprache, Übersetzungen und Beispiele Webn. 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 …
Webchronaxie [kro´nak-se] the minimum time at which an electric current must flow at a voltage twice the rheobase to cause a muscle to contract. In a strength-duration curve for muscle stimulation, it is the pulse width at a voltage twice that at the rheobase. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh ... WebThe meaning of CHRONAXIE is the minimum time required for excitation of a structure (such as a neuron) by a constant electric current of twice the threshold voltage. …
Webchro·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] 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.
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]
WebDefinition. noun, plural: chroaxies. (physiology) The shortest period of time required to produce an effective electrical stimulation such that the stimulus strength is twice the rheobase. Supplement. What happens when a cell membrane reaches threshold? When the depolarization reaches about -55 mV a neuron will fire an action potential. citric-aid clear af 2% ointmentWebThe benefit varies depending upon length of follow-up, the condition treated, the definition of adequate pain relief, and the site of stimulation (Bittar et al. 2005). Sites of stimulation have varied from the sensory thalamus to the periaquaductal gray, ... Rheobase and chronaxie rise in proportion to the distance from the electrode ... dickinson face washWebnoun. chro· nax· im· e· ter ˌkrō-ˌnak-ˈsim-ət-ər, ˌkrän-ˌak-. : a device for measuring chronaxie. citric-aid clearWebchronaxie; chronic; chronic fatigue syndrome; chronic glaucoma; chronic obstructive pulmonary disease; chronicle; chronicle play; Chronicles; chrono; chrono-chronobiology; … citric acid where does it come fromWebMuscle 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 ... citrical gummies shortageWeb[Purpose] Rheobase and chronaxie are used to confirm muscle degeneration. For stroke patients, however, the uses of rheobase and chronaxie in determining paretic side muscle degeneration is not yet fully understood. citric aid clear ointmentWebchronaxie ( 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) … citric aid ointment