Anatomy

Nucleolus Organizer Region

The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

See Also

MeSH Record

Synonyms

9 entry terms
  • Nucleolar Organizer
  • Nucleolar Organizers
  • Nucleolus Organizer Regions
  • Organizer Region, Nucleolus
  • Organizer Regions, Nucleolus
  • Organizer, Nucleolar
  • Organizers, Nucleolar
  • Region, Nucleolus Organizer
  • Regions, Nucleolus Organizer

MeSH Record

Aspects Covered

14 allowable subheadings

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

MeSH Record

History Note

80

MeSH Record

Previous Indexing

  • Cell Nucleolus (1966-1979)
  • Chromosomes (1966-1979)
  • Chromosomes, Human (1978-1979)
  • specific human chromosome (1968-1979)

MeSH Hierarchy

Tree Numbers

  1. A11w.284w.430w.106w.279.345.190w.160.650w
  2. G05.360w.160.650w
  3. G05.360w.340w.024.380w.875w

MeSH Record

NLM Classification

QU 350

AMA Style

References

  1. National Library of Medicine. Nucleolus Organizer Region. Medical Subject Headings (MeSH). 2026. Unique ID D009697. http://id.nlm.nih.gov/mesh/2026/D009697
  2. Nucleolus Organizer Region. In: Wikipedia. https://en.wikipedia.org/wiki/Nucleolus_organizer_region
  3. Nucleolus Organizer Region. In: Wikidata. https://www.wikidata.org/wiki/Q968963