Vorkommen und Bedeutung monophasischer Potentiale im Elektromyogramm der �u�eren Augenmuskeln von Kaninchen und Katze
Autor: | Kiessling A, Gornig H, Asmussen G |
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Rok vydání: | 1975 |
Předmět: | |
Zdroj: | Albrecht von Graefes Archiv f�r Klinische und Experimentelle Ophthalmologie. 196:159-167 |
ISSN: | 1435-702X 0065-6100 |
DOI: | 10.1007/bf00414802 |
Popis: | The EMG of extraocular muscles of rabbits and cats was recorded by a concentric-needle electrode provided for clinical use. The EMG showed spike activity (at least biphasic, fast waves of 1 to 2 msec duration) and characteristic long-duration monophasic waves (decline for up to 7 msec). The monophasic potentials are interpreted as local depolarizations arising at the nerve-muscle junctions of multiply innervated muscle fibers. Spike- and monophasic potentials are discharged in independent rhythms whose frequency changes when the head position is altered. The frequency of spike- and monophasic potentials are changed in the same direction by labyrinthine reflexes. Spontaneous monophasic potentials recruit at a lower threshold. |
Databáze: | OpenAIRE |
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