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The innervation pattern of fast myotomal muscle in the teleostMyoxocephalus scorpius: A reappraisal

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Abstract

The pattern of polyneuronal innervation in the sculpinMyoxocephalus scorpius was examined. The majority of fast fibres in sculpin are innervated by both adjacent nerves, and <15% receive input from sub-adjacent myotomes. Stimulation through both adjacent and sub-adjacent nerves results in muscle action potentials. Each adjacent nerve supplies 2–5 axons to a given fibre. A typical fibre is probably innervated by around 4–6 axons, and pre-terminal branching accounts for the 8–20 endplates present on these fibres.

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Authors and Affiliations

  1. The Gatty Marine Laboratory, Dept. of Biology and Preclinical Medicine, St. Andrews University, KY16 8LB, St. Andrews, Fife, Scotland

    J. D. Altringham & I. A. Johnston

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  1. J. D. Altringham
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  2. I. A. Johnston
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Altringham, J.D., Johnston, I.A. The innervation pattern of fast myotomal muscle in the teleostMyoxocephalus scorpius: A reappraisal. Fish Physiol Biochem 6, 309–313 (1989). https://doi.org/10.1007/BF01881685

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  • DOI: https://doi.org/10.1007/BF01881685

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