| 家兔腓神经中各类纤维兴奋性的测定——标准电量(a)是兴奋性的可靠指标 |
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| 引用本文： | 唐敬师,史文春,侯宗濂.家兔腓神经中各类纤维兴奋性的测定——标准电量(a)是兴奋性的可靠指标[J].西安交通大学学报(医学版),1986(1). |
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| 作者姓名： | 唐敬师 史文春 侯宗濂 |
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| 作者单位： | 西安医科大学神经生理研究室
(唐敬师，史文春)，西安医科大学神经生理研究室(侯宗濂) |
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| 摘 要： | 本研究测定了家兔腓神经中各类纤维的标准电量(a)、时值(τ)、基强度(Rh)、Weiss式中的b和持续时间为40微秒和200微秒的强度阈(T_)40)和T_(200)),结果表明,a是衡量兴奋性的可靠指标,a值愈小,兴奋性愈高。b不反映兴奋性,而τ、Rh、T_(40)及T_(200)由于受Weiss式中b的影响,不能作为衡量兴奋性的可靠指标。
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MEASUREMENT OF EXCITABILITY OF VARIOUS FIBERS IN PERONEUS NERVE IN RABBITS STANDARD ELECTRICAL QUANTITY (a) AS AN ACTUAL INDEX FOR MEASURING EXCITABILITY |
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| Tang Jingshi Si Wenchun Hou Zonglian.MEASUREMENT OF EXCITABILITY OF VARIOUS FIBERS IN PERONEUS NERVE IN RABBITS STANDARD ELECTRICAL QUANTITY (a) AS AN ACTUAL INDEX FOR MEASURING EXCITABILITY[J].Journal of Xi‘an Jiaotong University:Medical Sciences,1986(1). |
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| Authors: | Tang Jingshi Si Wenchun Hou Zonglian |
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| Institution: | Department of Neurophysiology |
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| Abstract: | Standard electrical quantity (a), chronaxie (τ), rheobase (Rh), "b" in Weiss' formula and intensity threshold of duration being 40 μs and 300 μs (T_(?) and T_(200)) were measured on peroneus nerves in rabbits. The results show that "a" is an actual index for measuring the excitability of various groups of fibers. The larger fibers, the higher excitability and the smaller "a" values. "b" does not indicate excitability. "τ" , "Rh" , "T_(40)" and "T_(200)" are not actual indexes for measuring excitability because they are influenced by "b" in Weiss' formula. |
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| Keywords: | excitability standard electrical quantity chronaxie rheobase intensity threshold |
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