Anatomy

Myocardium

The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.

MeSH Record

Classification

Broader headings

Narrower headings

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MeSH Record

See Also

MeSH Record

Synonyms

9 entry terms
  • Cardiac Muscle
  • Muscle, Cardiac
  • Muscle, Heart
  • Myocardia
  • Cardiac Muscles
  • Heart Muscle
  • Heart Muscles
  • Muscles, Cardiac
  • Muscles, Heart

MeSH Record

Aspects Covered

7 allowable subheadings

Indexed with the subheadings chemistry, cytology, enzymology, immunology, metabolism, pathology, ultrastructure.

MeSH Record

Indexing Annotation

the heart as tissue, differentiated from the heart as a pump (= HEART); ischemia = MYOCARDIAL ISCHEMIA; inflammation = MYOCARDITIS

MeSH Hierarchy

Tree Numbers

  1. A02w.633w.580w
  2. A07w.541w.704w
  3. A10w.690w.552w.750w

MeSH Record

NLM Classification

WG 280

AMA Style

References

  1. National Library of Medicine. Myocardium. Medical Subject Headings (MeSH). 2026. Unique ID D009206. http://id.nlm.nih.gov/mesh/2026/D009206
  2. Myocardium. In: Wikipedia. https://en.wikipedia.org/wiki/Cardiac_muscle
  3. Myocardium. In: Wikidata. https://www.wikidata.org/wiki/Q84133