Anatomy

Smooth Muscle

Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)

MeSH Record

Classification

Related Concepts

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MeSH Record

Synonyms

7 entry terms
  • Muscle, Involuntary
  • Muscle, Smooth
  • Involuntary Muscle
  • Involuntary Muscles
  • Muscles, Involuntary
  • Muscles, Smooth
  • Smooth Muscles

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, innervation, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, transplantation, ultrastructure, virology.

MeSH Record

Indexing Annotation

coordinate with specific organ if pertinent; /growth: coordinate with MUSCLE DEVELOPMENT; /embryol: coordinate with MUSCLE DEVELOPMENT if pertinent

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Smooth Muscle. Medical Subject Headings (MeSH). 2026. Unique ID D009130. http://id.nlm.nih.gov/mesh/2026/D009130
  2. Smooth Muscle. In: Wikipedia. https://en.wikipedia.org/wiki/Smooth_muscle
  3. Smooth Muscle. In: Wikidata. https://www.wikidata.org/wiki/Q208453