Abstract
By recording intracellular potentials the electrophysiological characteristics of the intrafusal muscle fibers of the frog muscle spindle were investigated. Analysis of the distribution of amplitudes of the miniature postsynaptic potentials indicates heterogeneity of the intrafusal muscle fibers. It is concluded that the frog muscle spindle contains three types of muscle fibers: those with single innervation, and those combining the two types of innervation.
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Yurkyanets, E.A. Resting membrane potentials and miniature postsynaptic potentials of frog intrafusal muscle fibers. Bull Exp Biol Med 83, 125–128 (1977). https://doi.org/10.1007/BF00799398
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DOI: https://doi.org/10.1007/BF00799398