Definition of epimysium in English:



mass nounAnatomy
  • A sheath of fibrous elastic tissue surrounding a muscle.

    • ‘Amyloid was distributed in a perivascular or interstitial location within the endomysium in 7 muscles and in the epimysium in 4 muscles.’
    • ‘We also see that the feather muscles are surrounded by an epimysium, the elastic membrane of which forms the framework for the hydraulic skeleton of the feathers.’
    • ‘Figure 3 B shows an optical section at a depth 14 m into the sample, revealing intense SHG from a matrix of collagen fibrils (black arrow) in the epimysium layer surrounding muscle fibers.’
    • ‘Instead, they originate from an aponeurosis that is continuous with the epimysium of the epaxial musculature and insert onto an aponeurosis that merges with the peritoneum.’
    covering, cover, case, casing, envelope, sleeve, wrapper
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Modern Latin, from epi- ‘upon’ + Greek mus ‘muscle’.