Anatomy

Myofibrils

The long cylindrical contractile organelles of STRIATED MUSCLE cells composed of ACTIN FILAMENTS; MYOSIN filaments; and other proteins organized in arrays of repeating units called SARCOMERES .

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The long cylindrical contractile organelles of STRIATED MUSCLE cells composed of ACTIN FILAMENTS; MYOSIN filaments; and other proteins organized in arrays of repeating units called SARCOMERES .

MeSH Record

Classification

Broader headings

Narrower headings

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MeSH Record

See Also

MeSH Record

Synonyms

3 entry terms
  • Myofibril
  • Myofilaments
  • Myofilament

MeSH Record

Aspects Covered

15 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, immunology, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, transplantation, ultrastructure, virology.

MeSH Record

History Note

1965; for MYOFILAMENTS use ACTIN CYTOSKELETON 1986-2011

MeSH Hierarchy

Tree Numbers

  1. A10w.690w.552w.875w
  2. A11w.284w.430w.214w.190.750w.620w
  3. A11w.620w.249.850w
  4. A11w.620w.500w.500w

MeSH Record

NLM Classification

WE 500

AMA Style

References

  1. National Library of Medicine. Myofibrils. Medical Subject Headings (MeSH). 2026. Unique ID D009210. http://id.nlm.nih.gov/mesh/2026/D009210
  2. Myofibrils. In: Wikipedia. https://en.wikipedia.org/wiki/Myofibril
  3. Myofibrils. In: Wikidata. https://www.wikidata.org/wiki/Q318623