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Definitions of muscle fiber
Definition that contains muscle fiber
  • fiber any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber)
  • relaxation (physiology) the gradual lengthening of inactive muscle or muscle fibers
  • contraction (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
  • fibre any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber)
  • fibrillation muscular twitching involving individual muscle fibers acting without coordination
  • myofibril one of many contractile filaments that make up a striated muscle fiber
  • actomyosin a protein complex in muscle fibers; composed of myosin and actin; shortens when stimulated and causes muscle contractions
  • myofibrilla one of many contractile filaments that make up a striated muscle fiber
  • syncytium a mass of cytoplasm containing several nuclei and enclosed in a membrane but no internal cell boundaries (as in muscle fibers)
  • sarcosome a large mitochondrion in a striated muscle fiber
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