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perimysium Line breaks: peri|mysium
Pronunciation: /ˌpɛrɪˈmɪsɪəm/

Definition of perimysium in English:


[mass noun] Anatomy
The sheath of connective tissue surrounding a bundle of muscle fibres.
Example sentences
  • Muscle is really composed of not merely muscle cells, but also connective tissue - endomysium, perimysium, and epimysium.
  • The bundle of fibers with its endomysium is surrounded by a more fibrous connective tissue sheath known as the perimysium.
  • A thin layer of extracellular matrix (perimysium) separating fiber groups within the muscle appears in cross-section.


Mid 19th century: modern Latin, from Greek peri- 'around' + mus 'muscle'.



Example sentences
  • A complete muscle consists of numerous fasciculi surrounded by a thick outer layer of connective tissue known as the perimysial septa.

Definition of perimysium in:

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