Junctional feet and particles in the triads of a fast-twitch muscle fibre

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 1983 English Publisher:Springer Science and Business Media LLCJournal:Journal of Muscle Research and Cell Motility, volume 4, pages 233-252 (issn: 0142-4319, eissn: 1573-2657,

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Authors: C, Franzini-Armstrong; G, Nunzi;

doi: 10.1007/bf00712033

pmid: 6863517

Junctional feet and particles in the triads of a fast-twitch muscle fibre

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Abstract

Structural details of junctional feet in triads of fish muscle are described. These feet have a less dense central core and contact both sarcoplasmic reticulum and T-tubule membranes at tetragonally disposed sites. The distribution of intramembraneous particles differs at the junctional T-membrane, and the junction is asymmetric.

Related Organizations

University of Pennsylvania
United States

Keywords

Air Sacs, Muscles, Cell Membrane, Fishes, Intracellular Membranes, Models, Biological, Microscopy, Electron, Sarcoplasmic Reticulum, Myofibrils, Animals, Muscle Contraction

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