Summary
Attempts were made to study differences in the relative effectiveness of different size ranges of motor axons to Renshaw cells by differential blocking of larger fibers of the gastrocnemius nerve in cats anesthetized with Nembutal.
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1.
Differential blocking of larger fibers in the nerve was successfully obtained by applying trapezoid wave current to the nerve.
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It was shown that more than half (58.1%) of the Renshaw cells receive homogeneous inputs from a motor axon collaterals, 25.8% of the cell receive collateral inputs from a certain group of fibers, and 12.5% of the Renshaw cells were activated by “γ range” fibers.
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Kato, M., Fukushima, K. Effect of differential blocking of motor axons on antidromic activation of Renshaw cells in the cat. Exp Brain Res 20, 135–143 (1974). https://doi.org/10.1007/BF00234008
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DOI: https://doi.org/10.1007/BF00234008